+ */
+ public static final String BG_COLOR_ID = "bg_color_id";
+
+ /**
+ * For text note, it doesn't has attachment, for multi-media
+ * note, it has at least one attachment（笔记是否包含附件）
+ *
Type: INTEGER
+ */
+ public static final String HAS_ATTACHMENT = "has_attachment";
+
+ /**
+ * Folder's count of notes（文件夹中笔记的数量）
+ *
Type: INTEGER (long)
+ */
+ public static final String NOTES_COUNT = "notes_count";
+
+ /**
+ * The file type: folder or note（笔记类型，可以是文件夹或笔记）
+ *
Type: INTEGER
+ */
+ public static final String TYPE = "type";
+
+ /**
+ * The last sync id（最后同步 ID）
+ *
Type: INTEGER (long)
+ */
+ public static final String SYNC_ID = "sync_id";
+
+ /**
+ * Sign to indicate local modified or not（本地是否修改过）
+ *
Type: INTEGER
+ */
+ public static final String LOCAL_MODIFIED = "local_modified";
+
+ /**
+ * Original parent id before moving into temporary folder（移动到临时文件夹之前的原始父级 ID）
+ *
Type : INTEGER
+ */
+ public static final String ORIGIN_PARENT_ID = "origin_parent_id";
+
+ /**
+ * The gtask id（Google 任务 ID）
+ *
Type : TEXT
+ */
+ public static final String GTASK_ID = "gtask_id";
+
+ /**
+ * The version code（版本号）
+ *
Type : INTEGER (long)
+ */
+ public static final String VERSION = "version";
+ }
+
+ /**
+ * 这个接口DataColumns定义了笔记应用程序中的笔记数据表格中所有列的常量，
+ * 而NotesColumns定义了笔记应用程序中的笔记数据表格中的特定列的常量。
+ * 因此，DataColumns更通用，而NotesColumns更具体。
+ * NotesColumns接口包含笔记的标题、正文和颜色等属性，
+ * 而DataColumns接口包含笔记数据表格中的通用列。
+ * 在许多情况下，这两个接口将一起使用。所以重复的常量就不在做解释了。
+ */
+ public interface DataColumns {
+ /**
+ * The unique ID for a row
+ *
Type: INTEGER (long)
+ */
+ public static final String ID = "_id";
+
+ /**
+ * The MIME type of the item represented by this row.（表示该行数据的MIME类型）
+ *
Type: Text
+ */
+ public static final String MIME_TYPE = "mime_type";
+
+ /**
+ * The reference id to note that this data belongs to（表示该行数据所属的笔记的ID）
+ *
Type: INTEGER (long)
+ */
+ public static final String NOTE_ID = "note_id";
+
+ /**
+ * Created data for note or folder
+ *
Type: INTEGER (long)
+ */
+ public static final String CREATED_DATE = "created_date";
+
+ /**
+ * Latest modified date
+ *
Type: INTEGER (long)
+ */
+ public static final String MODIFIED_DATE = "modified_date";
+
+ /**
+ * Data's content
+ *
Type: TEXT
+ */
+ public static final String CONTENT = "content";
+
+
+ /**
+ * Generic data column, the meaning is {@link #MIMETYPE} specific, used for
+ * integer data type
+ *
Type: INTEGER
+ */
+ public static final String DATA1 = "data1";
+
+ /**
+ * Generic data column, the meaning is {@link #MIMETYPE} specific, used for
+ * integer data type
+ *
Type: INTEGER
+ */
+ public static final String DATA2 = "data2";
+
+ /**
+ * Generic data column, the meaning is {@link #MIMETYPE} specific, used for
+ * TEXT data type
+ *
Type: TEXT
+ */
+ public static final String DATA3 = "data3";
+
+ /**
+ * Generic data column, the meaning is {@link #MIMETYPE} specific, used for
+ * TEXT data type
+ *
Type: TEXT
+ */
+ public static final String DATA4 = "data4";
+
+ /**
+ * Generic data column, the meaning is {@link #MIMETYPE} specific, used for
+ * TEXT data type
+ *
Type: TEXT
+ */
+ public static final String DATA5 = "data5";
+ }
+
+ /**
+ * 这是一个嵌套在NotePad类中的静态内部类TextNote。
+ * 它实现了DataColumns接口，并定义了特定于文本笔记的常量和内容URI。
+ * 与NotesColumns类似，TextNote还具有特定于文本笔记的常量，
+ * 例如MODE和MODE_CHECK_LIST，以及特定于文本笔记的内容类型和内容项类型常量。
+ * 此外，TextNote还定义了用于访问文本笔记数据的内容URI，该URI指向ContentProvider的text_note表。
+ */
+ public static final class TextNote implements DataColumns {
+ /**
+ * Mode to indicate the text in check list mode or not
+ *
Type: Integer 1:check list mode 0: normal mode
+ */
+ public static final String MODE = DATA1;//MODE字段表示文本笔记的模式，可以是正常模式或者是带有任务清单的模式，类型为整数。它使用了接口中的DATA1字段来表示其存储值的列名。
+
+ public static final int MODE_CHECK_LIST = 1;//MODE_CHECK_LIST字段表示任务清单模式的值，为1。
+
+ public static final String CONTENT_TYPE = "vnd.android.cursor.dir/text_note";
+ //CONTENT_TYPE字段表示此数据的MIME类型，指示ContentProvider返回的数据类型。此处表示返回的是文本笔记列表。
+ public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/text_note";
+ //CONTENT_ITEM_TYPE字段表示此数据的单个项目的MIME类型。
+ public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/text_note");
+ //CONTENT_URI字段表示此数据的URI地址。
+ }
+
+ /**
+ * 这是一个嵌套在Notes类中的静态内部类CallNote，实现了DataColumns接口。
+ * CallNote定义了一些特定于电话记录的字段，如CALL_DATE（通话日期）和PHONE_NUMBER（电话号码），
+ * 并定义了ContentProvider使用的MIME类型和URI。
+ */
+ public static final class CallNote implements DataColumns {
+ /**
+ * Call date for this record（记录通话日期）
+ *
Type: INTEGER (long)
+ */
+ public static final String CALL_DATE = DATA1;
+ //表示通话日期的列名，数据类型为long，存储在DATA1列中。
+ /**
+ * Phone number for this record（记录通话号码）
+ *
Type: TEXT
+ */
+ public static final String PHONE_NUMBER = DATA3;
+ //表示电话号码的列名，数据类型为String，存储在DATA3列中。
+ public static final String CONTENT_TYPE = "vnd.android.cursor.dir/call_note";
+ //单条通话记录，用于指定MIME类型的常量
+ public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/call_note";
+ //同上，多条通话记录
+
+ public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/call_note");
+ //该类的内容URI，用于访问通话记录。
+ }
+}
diff --git a/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java b/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java
new file mode 100644
index 0000000..d68f611
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java
@@ -0,0 +1,439 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.data;
+
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
+import android.util.Log;
+
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.DataConstants;
+import net.micode.notes.data.Notes.NoteColumns;
+
+/**
+ * 这段代码定义了一个名为NotesDatabaseHelper的类，继承自SQLiteOpenHelper。
+ * 在该类中定义了数据库名（DB_NAME）和数据库版本号（DB_VERSION），
+ * 并定义了一个内部接口TABLE，该接口中定义了NOTE和DATA两个常量，分别表示数据库中的两个表名。
+ * 其中SQLiteOpenHelper是Android提供的用于管理SQLite数据库的类，
+ * 它提供了创建、更新、打开和关闭数据库的方法，同时它也能够在不同的版本之间管理数据库的迁移。
+ */
+public class NotesDatabaseHelper extends SQLiteOpenHelper {
+ private static final String DB_NAME = "note.db";
+
+ private static final int DB_VERSION = 4;
+
+ public interface TABLE {
+ public static final String NOTE = "note";
+
+ public static final String DATA = "data";
+ }
+
+ private static final String TAG = "NotesDatabaseHelper";//这一行代码定义了一个名为TAG的字符串常量，用于在调试时作为日志标签。
+ /**
+ * 定义了一个静态变量mInstance，类型是NotesDatabaseHelper，并且标记为static，
+ * 表示这个变量是属于类的而不是实例的。
+ * 在类被加载的时候，这个变量会被创建。这个变量的作用是在整个应用中只创建一个NotesDatabaseHelper实例，
+ * 这样可以避免在多个地方重复创建数据库连接和实例，提高应用的性能和效率。
+ */
+ private static NotesDatabaseHelper mInstance;
+ /**
+ * 这段代码定义了两个字符串常量 CREATE_NOTE_TABLE_SQL 和 CREATE_DATA_TABLE_SQL，
+ * 分别用于创建两个数据库表格：note 和 data。
+ */
+ private static final String CREATE_NOTE_TABLE_SQL =
+ "CREATE TABLE " + TABLE.NOTE + "(" +
+ NoteColumns.ID + " INTEGER PRIMARY KEY," +//笔记 ID，整数类型，作为主键
+ NoteColumns.PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +//父笔记 ID，整数类型，不为空，默认为 0
+ NoteColumns.ALERTED_DATE + " INTEGER NOT NULL DEFAULT 0," +//提醒时间，整数类型，不为空，默认为 0
+ NoteColumns.BG_COLOR_ID + " INTEGER NOT NULL DEFAULT 0," +//背景颜色 ID，整数类型，不为空，默认为 0
+ NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +//创建时间，整数类型，不为空，默认为当前时间
+ NoteColumns.HAS_ATTACHMENT + " INTEGER NOT NULL DEFAULT 0," +//是否有附件，整数类型，不为空，默认为 0
+ NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +//修改时间，整数类型，不为空，默认为当前时间
+ NoteColumns.NOTES_COUNT + " INTEGER NOT NULL DEFAULT 0," +//笔记数量，整数类型，不为空，默认为 0
+ NoteColumns.SNIPPET + " TEXT NOT NULL DEFAULT ''," +//笔记概要，文本类型，不为空，默认为空字符串
+ NoteColumns.TYPE + " INTEGER NOT NULL DEFAULT 0," +//笔记类型，整数类型，不为空，默认为 0
+ NoteColumns.WIDGET_ID + " INTEGER NOT NULL DEFAULT 0," +//小部件 ID，整数类型，不为空，默认为 0
+ NoteColumns.WIDGET_TYPE + " INTEGER NOT NULL DEFAULT -1," +//小部件类型，整数类型，不为空，默认为 -1
+ NoteColumns.SYNC_ID + " INTEGER NOT NULL DEFAULT 0," +//同步 ID，整数类型，不为空，默认为 0
+ NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," +//本地修改标识，整数类型，不为空，默认为 0
+ NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +//原始父笔记 ID，整数类型，不为空，默认为 0
+ NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," +//Google 任务 ID，文本类型，不为空，默认为空字符串
+ NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" +//版本号，整数类型，不为空，默认为 0
+ ")";
+
+ private static final String CREATE_DATA_TABLE_SQL =
+ "CREATE TABLE " + TABLE.DATA + "(" +
+ DataColumns.ID + " INTEGER PRIMARY KEY," +//数据 ID，整数类型，作为主键
+ DataColumns.MIME_TYPE + " TEXT NOT NULL," +//MIME 类型，文本类型，不为空
+ DataColumns.NOTE_ID + " INTEGER NOT NULL DEFAULT 0," +//笔记 ID，整数类型，不为空，默认为 0
+ NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +//创建时间，整数类型，不为空，默认为当前时间
+ NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +//修改时间，整数类型，不为空，默认为当前时间
+ DataColumns.CONTENT + " TEXT NOT NULL DEFAULT ''," +//数据内容，文本类型，不为空，默认为空字符串
+ DataColumns.DATA1 + " INTEGER," +
+ DataColumns.DATA2 + " INTEGER," +
+ DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," +
+ DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," +
+ DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" +
+ ")";
+ /**
+ * 这是一个用于创建数据库索引的SQL语句，它将创建一个名为"note_id_index"的索引，
+ * 该索引将位于"TABLE.DATA"表上，并将使用"DataColumns.NOTE_ID"列作为索引键。
+ * 这个索引的目的是在查询该表时提高性能，尤其是在根据笔记ID进行过滤时。如果索引已经存在，则不会重复创建。
+ */
+ private static final String CREATE_DATA_NOTE_ID_INDEX_SQL =
+ "CREATE INDEX IF NOT EXISTS note_id_index ON " +
+ TABLE.DATA + "(" + DataColumns.NOTE_ID + ");";
+//以下是各种 SQLite 数据库的触发器，用于更新数据库
+ /**
+ * Increase folder's note count when move note to the folder（移动笔记到文件夹时增加文件夹的笔记数）
+ */
+ private static final String NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER =
+ "CREATE TRIGGER increase_folder_count_on_update "+
+ " AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE +
+ " BEGIN " +
+ " UPDATE " + TABLE.NOTE +
+ " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
+ " WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
+ " END";
+
+ /**
+ * Decrease folder's note count when move note from folder（从文件夹中移动笔记时减少文件夹笔记数）
+ */
+ private static final String NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER =
+ "CREATE TRIGGER decrease_folder_count_on_update " +
+ " AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE +
+ " BEGIN " +
+ " UPDATE " + TABLE.NOTE +
+ " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" +
+ " WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
+ " AND " + NoteColumns.NOTES_COUNT + ">0" + ";" +
+ " END";
+
+ /**
+ * Increase folder's note count when insert new note to the folder（向文件夹插入新笔记时增加文件夹笔记计数）
+ */
+ private static final String NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER =
+ "CREATE TRIGGER increase_folder_count_on_insert " +
+ " AFTER INSERT ON " + TABLE.NOTE +
+ " BEGIN " +
+ " UPDATE " + TABLE.NOTE +
+ " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
+ " WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
+ " END";
+
+ /**
+ * Decrease folder's note count when delete note from the folder（从文件夹中删除笔记时减少文件夹的笔记数）
+ */
+ private static final String NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER =
+ "CREATE TRIGGER decrease_folder_count_on_delete " +
+ " AFTER DELETE ON " + TABLE.NOTE +
+ " BEGIN " +
+ " UPDATE " + TABLE.NOTE +
+ " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" +
+ " WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
+ " AND " + NoteColumns.NOTES_COUNT + ">0;" +
+ " END";
+
+ /**
+ * Update note's content when insert data with type {@link DataConstants#NOTE}（插入DataConstants类型的数据时更新笔记的内容）
+ */
+ private static final String DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER =
+ "CREATE TRIGGER update_note_content_on_insert " +
+ " AFTER INSERT ON " + TABLE.DATA +
+ " WHEN new." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
+ " BEGIN" +
+ " UPDATE " + TABLE.NOTE +
+ " SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
+ " WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
+ " END";
+
+ /**
+ * Update note's content when data with {@link DataConstants#NOTE} type has changed（当DataConstants类型的数据发生更改时更新笔记的内容）
+ */
+ private static final String DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER =
+ "CREATE TRIGGER update_note_content_on_update " +
+ " AFTER UPDATE ON " + TABLE.DATA +
+ " WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
+ " BEGIN" +
+ " UPDATE " + TABLE.NOTE +
+ " SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
+ " WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
+ " END";
+
+ /**
+ * Update note's content when data with {@link DataConstants#NOTE} type has deleted（删除DataConstants类型的数据时更新笔记的内容）
+ */
+ private static final String DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER =
+ "CREATE TRIGGER update_note_content_on_delete " +
+ " AFTER delete ON " + TABLE.DATA +
+ " WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
+ " BEGIN" +
+ " UPDATE " + TABLE.NOTE +
+ " SET " + NoteColumns.SNIPPET + "=''" +
+ " WHERE " + NoteColumns.ID + "=old." + DataColumns.NOTE_ID + ";" +
+ " END";
+
+ /**
+ * Delete datas belong to note which has been deleted（删除属于已删除笔记的数据）
+ */
+ private static final String NOTE_DELETE_DATA_ON_DELETE_TRIGGER =
+ "CREATE TRIGGER delete_data_on_delete " +
+ " AFTER DELETE ON " + TABLE.NOTE +
+ " BEGIN" +
+ " DELETE FROM " + TABLE.DATA +
+ " WHERE " + DataColumns.NOTE_ID + "=old." + NoteColumns.ID + ";" +
+ " END";
+
+ /**
+ * Delete notes belong to folder which has been deleted（删除属于已删除文件夹的笔记）
+ */
+ private static final String FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER =
+ "CREATE TRIGGER folder_delete_notes_on_delete " +
+ " AFTER DELETE ON " + TABLE.NOTE +
+ " BEGIN" +
+ " DELETE FROM " + TABLE.NOTE +
+ " WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
+ " END";
+
+ /**
+ * Move notes belong to folder which has been moved to trash folder（当一个文件夹被更新到废纸篓时，将其下所有笔记移动到废纸篓文件夹）
+ */
+ private static final String FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER =
+ "CREATE TRIGGER folder_move_notes_on_trash " +
+ " AFTER UPDATE ON " + TABLE.NOTE +
+ " WHEN new." + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +
+ " BEGIN" +
+ " UPDATE " + TABLE.NOTE +
+ " SET " + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +
+ " WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
+ " END";
+
+ /**
+ * 这段代码是一个构造函数，用于创建一个NotesDatabaseHelper对象。这个对象是用于管理SQLite数据库的帮助类，可以用来创建、升级和管理数据库表格。
+ * 构造函数有四个参数，分别是：
+ * Context context：上下文对象，用于访问应用程序的资源和环境。
+ * String DB_NAME：数据库的名称。
+ * CursorFactory factory：用于创建游标对象的工厂类，如果为null，则使用默认工厂。
+ * int DB_VERSION：数据库的版本号，用于管理数据库的升级。
+ */
+ public NotesDatabaseHelper(Context context) {
+ super(context, DB_NAME, null, DB_VERSION);
+ }
+
+ /**
+ * 该方法负责在数据库中创建笔记表。
+ * 它执行SQL语句CREATE_NOTE_TABLE_SQL来创建表，然后调用reCreateNoteTableTriggers方法来重新创建与笔记表关联的触发器。
+ * 然后，它通过调用createSystemFolder方法创建一个系统文件夹，并使用Log.d方法记录一条消息，以指示笔记表已经创建。
+ */
+ public void createNoteTable(SQLiteDatabase db) {
+ db.execSQL(CREATE_NOTE_TABLE_SQL);
+ reCreateNoteTableTriggers(db);
+ createSystemFolder(db);
+ Log.d(TAG, "note table has been created");
+ }
+
+ /**
+ * 该方法用于重新创建笔记表相关的触发器。
+ * 它首先使用DROP TRIGGER语句删除所有已有的触发器，然后使用CREATE TRIGGER语句重新创建它们。
+ * 这个方法是为了在升级数据库时使用，以便更新旧版本的触发器。
+ * @param db
+ */
+ private void reCreateNoteTableTriggers(SQLiteDatabase db) {
+ db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_update");
+ db.execSQL("DROP TRIGGER IF EXISTS decrease_folder_count_on_update");
+ db.execSQL("DROP TRIGGER IF EXISTS decrease_folder_count_on_delete");
+ db.execSQL("DROP TRIGGER IF EXISTS delete_data_on_delete");
+ db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_insert");
+ db.execSQL("DROP TRIGGER IF EXISTS folder_delete_notes_on_delete");
+ db.execSQL("DROP TRIGGER IF EXISTS folder_move_notes_on_trash");
+
+ db.execSQL(NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER);
+ db.execSQL(NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER);
+ db.execSQL(NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER);
+ db.execSQL(NOTE_DELETE_DATA_ON_DELETE_TRIGGER);
+ db.execSQL(NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER);
+ db.execSQL(FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER);
+ db.execSQL(FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER);
+ }
+
+ /**
+ * 此方法在数据库中创建四个系统文件夹：通话记录文件夹、根文件夹、临时文件夹和废纸篓文件夹。
+ * 该方法创建一个ContentValues对象，并为每个文件夹的ID和TYPE列添加值。
+ * 然后，该方法使用SQLiteDatabase类的insert（）方法将值插入笔记表中。
+ * 系统文件夹的ID定义为Notes类中的常量。
+ * 通话记录文件夹用于通话笔记，根文件夹是默认文件夹，临时文件夹用于移动笔记，废纸篓文件夹是移动已删除笔记的地方。
+ */
+ private void createSystemFolder(SQLiteDatabase db) {
+ ContentValues values = new ContentValues();
+
+ /**
+ * call record folder for call notes
+ */
+ values.put(NoteColumns.ID, Notes.ID_CALL_RECORD_FOLDER);
+ values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
+ db.insert(TABLE.NOTE, null, values);
+
+ /**
+ * root folder which is default folder（mo
+ */
+ values.clear();
+ values.put(NoteColumns.ID, Notes.ID_ROOT_FOLDER);
+ values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
+ db.insert(TABLE.NOTE, null, values);
+
+ /**
+ * temporary folder which is used for moving note
+ */
+ values.clear();
+ values.put(NoteColumns.ID, Notes.ID_TEMPARAY_FOLDER);
+ values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
+ db.insert(TABLE.NOTE, null, values);
+
+ /**
+ * create trash folder
+ */
+ values.clear();
+ values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER);
+ values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
+ db.insert(TABLE.NOTE, null, values);
+ }
+
+ /**
+ * 此方法在数据库中创建数据表，并设置必要的触发器和索引。
+ * 它将SQLiteDatabase类的实例作为参数，用于执行SQL语句以创建数据表、重新创建触发器和创建索引。
+ * CREATE_DATA_TABLE_SQL常量保存用于创建数据表的SQL语句，该语句定义列及其数据类型。
+ * 调用recreatedatabletriggers（）方法来删除和重新创建与数据表关联的触发器，这将确保触发器是最新的模式更改。
+ * CREATE_DATA_NOTE_ID_INDEX_SQL常量保存SQL语句，用于在数据表的NOTE ID列上创建索引，
+ * 这提高了在NOTE ID列上联接数据和NOTE表的查询的性能。最后，打印一条日志消息，指示数据表已经创建。
+ */
+ public void createDataTable(SQLiteDatabase db) {
+ db.execSQL(CREATE_DATA_TABLE_SQL);
+ reCreateDataTableTriggers(db);
+ db.execSQL(CREATE_DATA_NOTE_ID_INDEX_SQL);
+ Log.d(TAG, "data table has been created");
+ }
+
+ /**
+ * Recreatedatabletriggers方法用于删除用于在insert、update和delete上更新注释内容的现有触发器，
+ * 然后使用最新定义重新创建它们。
+ * 以下是被删除的触发器：update_note_content_on_insert_content_on_update_note_content_on_delete，
+ * 这些是重新创建的触发器：data_update_note_content_on_insert_trigger data_update_trigger data_update_note_content_on_delete_trigger
+ * 这些触发器确保每当在数据表中创建、更新或删除笔记时，笔记表中的snippet字段都会被更新。
+ */
+ private void reCreateDataTableTriggers(SQLiteDatabase db) {
+ db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_insert");
+ db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_update");
+ db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_delete");
+
+ db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER);
+ db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER);
+ db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER);
+ }
+
+ /**
+ * 这是一个静态方法，它返回NotesDatabaseHelper类的单个实例。
+ * 它将Context对象作为参数，并检查NotesDatabaseHelper的实例是否为null。
+ * 如果实例为null，则创建NotesDatabaseHelper类的新实例并返回它。如果实例已经存在，则返回现有实例。
+ * 该方法是同步的，以确保一次只有一个线程可以访问它，避免任何并发问题。
+ */
+ static synchronized NotesDatabaseHelper getInstance(Context context) {
+ if (mInstance == null) {
+ mInstance = new NotesDatabaseHelper(context);
+ }
+ return mInstance;
+ }
+
+ /**
+ * 这是NotesDatabaseHelper类中onCreate（）和onUpgrade（）方法的实现。
+ * 第一次创建数据库时调用onCreate（）。
+ * 它分别使用createNoteTable（）和createDataTable（）方法在数据库中创建Note和Data两个表。
+ * 当数据库需要升级到较新版本时，将调用onUpgrade（）。
+ * 它首先检查数据库的旧版本，并执行必要的升级将其带到新版本。
+ * 在这个实现中，有三个升级步骤：从版本1升级到版本2：这将删除现有的Note和数据表，并使用createNoteTable（）和createDataTable（）方法重新创建它们。
+ * 从版本2升级到版本3：这将删除一些未使用的触发器，并向Note表添加一个新列gtask_id。它还为回收筒创建一个新的系统文件夹。
+ * 从版本3升级到版本4：这将向注释表添加一个新的列版本。
+ * 如果在升级步骤中删除了任何触发器，则调用reCreateNoteTableTriggers（）和recreateDatabletriggers（）方法来重新创建它们。
+ * 如果升级因某种原因失败，将引发IllegalStateException。
+ */
+ @Override
+ public void onCreate(SQLiteDatabase db) {
+ createNoteTable(db);
+ createDataTable(db);
+ }
+
+ @Override
+ public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+ boolean reCreateTriggers = false;
+ boolean skipV2 = false;
+
+ if (oldVersion == 1) {
+ upgradeToV2(db);
+ skipV2 = true; // this upgrade including the upgrade from v2 to v3
+ oldVersion++;
+ }
+
+ if (oldVersion == 2 && !skipV2) {
+ upgradeToV3(db);
+ reCreateTriggers = true;
+ oldVersion++;
+ }
+
+ if (oldVersion == 3) {
+ upgradeToV4(db);
+ oldVersion++;
+ }
+
+ if (reCreateTriggers) {
+ reCreateNoteTableTriggers(db);
+ reCreateDataTableTriggers(db);
+ }
+
+ if (oldVersion != newVersion) {
+ throw new IllegalStateException("Upgrade notes database to version " + newVersion
+ + "fails");
+ }
+ }
+
+ private void upgradeToV2(SQLiteDatabase db) {
+ db.execSQL("DROP TABLE IF EXISTS " + TABLE.NOTE);
+ db.execSQL("DROP TABLE IF EXISTS " + TABLE.DATA);
+ createNoteTable(db);
+ createDataTable(db);
+ }
+
+ private void upgradeToV3(SQLiteDatabase db) {
+ // drop unused triggers
+ db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_insert");
+ db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_delete");
+ db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_update");
+ // add a column for gtask id
+ db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.GTASK_ID
+ + " TEXT NOT NULL DEFAULT ''");
+ // add a trash system folder
+ ContentValues values = new ContentValues();
+ values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER);
+ values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
+ db.insert(TABLE.NOTE, null, values);
+ }
+
+ private void upgradeToV4(SQLiteDatabase db) {
+ db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.VERSION
+ + " INTEGER NOT NULL DEFAULT 0");
+ }
+}
diff --git a/app/src/main/java/net/micode/notes/data/NotesProvider.java b/app/src/main/java/net/micode/notes/data/NotesProvider.java
new file mode 100644
index 0000000..e1e5eb2
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/data/NotesProvider.java
@@ -0,0 +1,308 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.data;
+
+
+import android.app.SearchManager;
+import android.content.ContentProvider;
+import android.content.ContentUris;
+import android.content.ContentValues;
+import android.content.Intent;
+import android.content.UriMatcher;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
+import android.net.Uri;
+import android.text.TextUtils;
+import android.util.Log;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.data.NotesDatabaseHelper.TABLE;
+
+
+public class NotesProvider extends ContentProvider {//定义NotesProvider类，它继承自ContentProvider类
+ private static final UriMatcher mMatcher;//声明UriMatcher实例
+
+ private NotesDatabaseHelper mHelper;//声明NotesDatabaseHelper实例用于匹配Uri，以确定请求的类型，例如是否是请求特定的数据项，或者是否是搜索建议请求。
+
+ private static final String TAG = "NotesProvider";
+
+ private static final int URI_NOTE = 1;//代表笔记数据的URI
+ private static final int URI_NOTE_ITEM = 2;//代表单个笔记数据的URI
+ private static final int URI_DATA = 3;//代表附加数据的URI
+ private static final int URI_DATA_ITEM = 4;//代表单个附加数据的URI
+
+ private static final int URI_SEARCH = 5;//代表搜索请求的URI
+ private static final int URI_SEARCH_SUGGEST = 6;//代表搜索建议请求的URI
+
+ static {
+ mMatcher = new UriMatcher(UriMatcher.NO_MATCH);
+ mMatcher.addURI(Notes.AUTHORITY, "note", URI_NOTE);
+ mMatcher.addURI(Notes.AUTHORITY, "note/#", URI_NOTE_ITEM);
+ mMatcher.addURI(Notes.AUTHORITY, "data", URI_DATA);
+ mMatcher.addURI(Notes.AUTHORITY, "data/#", URI_DATA_ITEM);
+ mMatcher.addURI(Notes.AUTHORITY, "search", URI_SEARCH);
+ mMatcher.addURI(Notes.AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY, URI_SEARCH_SUGGEST);
+ mMatcher.addURI(Notes.AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY + "/*", URI_SEARCH_SUGGEST);
+ }
+
+ /**
+ * x'0A' represents the '\n' character in sqlite. For title and content in the search result,
+ * we will trim '\n' and white space in order to show more information.
+ */
+ // 定义将在搜索结果中返回的列
+ private static final String NOTES_SEARCH_PROJECTION = NoteColumns.ID + ","
+ + NoteColumns.ID + " AS " + SearchManager.SUGGEST_COLUMN_INTENT_EXTRA_DATA + ","
+ + "TRIM(REPLACE(" + NoteColumns.SNIPPET + ", x'0A','')) AS " + SearchManager.SUGGEST_COLUMN_TEXT_1 + ","
+ + "TRIM(REPLACE(" + NoteColumns.SNIPPET + ", x'0A','')) AS " + SearchManager.SUGGEST_COLUMN_TEXT_2 + ","
+ + R.drawable.search_result + " AS " + SearchManager.SUGGEST_COLUMN_ICON_1 + ","
+ + "'" + Intent.ACTION_VIEW + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_ACTION + ","
+ + "'" + Notes.TextNote.CONTENT_TYPE + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_DATA;
+ // 定义将执行以检索搜索结果的搜索查询
+ private static String NOTES_SNIPPET_SEARCH_QUERY = "SELECT " + NOTES_SEARCH_PROJECTION
+ + " FROM " + TABLE.NOTE// 指定要搜索的表
+ + " WHERE " + NoteColumns.SNIPPET + " LIKE ?"// 指定搜索查询
+ + " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER// 排除在垃圾桶文件夹中的笔记
+ + " AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE;// 排除非笔记条目
+
+ @Override
+ public boolean onCreate() {// 获取数据库帮助类的实例
+ mHelper = NotesDatabaseHelper.getInstance(getContext());
+ return true;
+ }
+
+ @Override
+ public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
+ String sortOrder) {
+ Cursor c = null;// 获取可读的数据库实例
+ SQLiteDatabase db = mHelper.getReadableDatabase();
+ String id = null;
+ switch (mMatcher.match(uri)) {
+ case URI_NOTE:// 查询所有笔记
+ c = db.query(TABLE.NOTE, projection, selection, selectionArgs, null, null,
+ sortOrder);
+ break;
+ case URI_NOTE_ITEM:// 查询单个笔记
+ id = uri.getPathSegments().get(1);
+ c = db.query(TABLE.NOTE, projection, NoteColumns.ID + "=" + id
+ + parseSelection(selection), selectionArgs, null, null, sortOrder);
+ break;
+ case URI_DATA:// 查询所有数据
+ c = db.query(TABLE.DATA, projection, selection, selectionArgs, null, null,
+ sortOrder);
+ break;
+ case URI_DATA_ITEM: // 查询单个数据
+ id = uri.getPathSegments().get(1);
+ c = db.query(TABLE.DATA, projection, DataColumns.ID + "=" + id
+ + parseSelection(selection), selectionArgs, null, null, sortOrder);
+ break;
+ case URI_SEARCH:
+ case URI_SEARCH_SUGGEST:// 搜索笔记
+ if (sortOrder != null || projection != null) {
+ throw new IllegalArgumentException(
+ "do not specify sortOrder, selection, selectionArgs, or projection" + "with this query");
+ }
+
+ String searchString = null;
+ if (mMatcher.match(uri) == URI_SEARCH_SUGGEST) {
+ if (uri.getPathSegments().size() > 1) {
+ searchString = uri.getPathSegments().get(1);
+ }
+ } else {
+ searchString = uri.getQueryParameter("pattern");
+ }
+
+ if (TextUtils.isEmpty(searchString)) {
+ return null;
+ }
+
+ try {// 搜索所有匹配的笔记
+ searchString = String.format("%%%s%%", searchString);
+ c = db.rawQuery(NOTES_SNIPPET_SEARCH_QUERY,
+ new String[] { searchString });
+ } catch (IllegalStateException ex) {
+ Log.e(TAG, "got exception: " + ex.toString());
+ }
+ break;
+ default:
+ throw new IllegalArgumentException("Unknown URI " + uri);
+ }
+ if (c != null) {// 设置通知URI，以便在数据更改时通知观察者
+ c.setNotificationUri(getContext().getContentResolver(), uri);
+ }
+ return c;
+ }
+
+ @Override
+ public Uri insert(Uri uri, ContentValues values) {// 获取可写的 SQLiteDatabase 对象
+ SQLiteDatabase db = mHelper.getWritableDatabase();// 初始化三个变量，用于存储 note、data 和插入的记录的 ID
+ long dataId = 0, noteId = 0, insertedId = 0;// 根据传入的 Uri 进行匹配
+ switch (mMatcher.match(uri)) {
+ case URI_NOTE:// 向 TABLE.NOTE 表中插入记录，并获取插入的记录的 ID
+ insertedId = noteId = db.insert(TABLE.NOTE, null, values);
+ break;
+ case URI_DATA:
+ if (values.containsKey(DataColumns.NOTE_ID)) {// 如果 ContentValues 包含 DataColumns.NOTE_ID 列
+ noteId = values.getAsLong(DataColumns.NOTE_ID);// 获取 DataColumns.NOTE_ID 列的值
+ } else {
+ Log.d(TAG, "Wrong data format without note id:" + values.toString());
+ }//打印日志
+ insertedId = dataId = db.insert(TABLE.DATA, null, values);// 向 TABLE.DATA 表中插入记录，并获取插入的记录的 ID
+ break;
+ default:
+ throw new IllegalArgumentException("Unknown URI " + uri);// 抛出 IllegalArgumentException 异常
+ }
+ // Notify the note uri
+ if (noteId > 0) { // 如果 noteId 大于 0，则通知 content resolver 对应的 Uri 对应的数据已经发生了变化
+ getContext().getContentResolver().notifyChange(
+ ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null);
+ }
+
+ // Notify the data uri
+ if (dataId > 0) {// 如果 dataId 大于 0，则通知 content resolver 对应的 Uri 对应的数据已经发生了变化
+ getContext().getContentResolver().notifyChange(
+ ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), null);
+ }
+
+ return ContentUris.withAppendedId(uri, insertedId); // 返回插入的记录的 Uri
+ }
+
+ @Override
+ public int delete(Uri uri, String selection, String[] selectionArgs) {
+ int count = 0;
+ String id = null;
+ SQLiteDatabase db = mHelper.getWritableDatabase();
+ boolean deleteData = false;
+ switch (mMatcher.match(uri)) {// 根据传入的 Uri 进行匹配
+ case URI_NOTE:// 如果匹配到 URI_NOTE
+ selection = "(" + selection + ") AND " + NoteColumns.ID + ">0 ";// 组合 selection 条件，以确保删除的是用户笔记，而不是系统文件夹
+ count = db.delete(TABLE.NOTE, selection, selectionArgs);// 删除 TABLE.NOTE 表中符合条件的记录，并返回删除的数量
+ break;
+ case URI_NOTE_ITEM: // 如果匹配到 URI_NOTE_ITEM
+ id = uri.getPathSegments().get(1);// 获取 Uri 中的 ID
+ /**
+ * ID that smaller than 0 is system folder which is not allowed to
+ * trash
+ */
+ long noteId = Long.valueOf(id);
+ if (noteId <= 0) { // 如果 ID 小于等于 0，则直接跳出 switch 语句
+ break;
+ }
+ count = db.delete(TABLE.NOTE,
+ NoteColumns.ID + "=" + id + parseSelection(selection), selectionArgs);// 删除 TABLE.NOTE 表中符合条件的记录，并返回删除的数量
+ break;
+ case URI_DATA:// 如果匹配到 URI_DATA
+ count = db.delete(TABLE.DATA, selection, selectionArgs);// 删除 TABLE.DATA 表中符合条件的记录，并返回删除的数量
+ deleteData = true;
+ break;
+ case URI_DATA_ITEM:// 如果匹配到 URI_DATA_ITEM
+ id = uri.getPathSegments().get(1); // 获取 Uri 中的 ID
+ count = db.delete(TABLE.DATA,
+ DataColumns.ID + "=" + id + parseSelection(selection), selectionArgs);// 删除 TABLE.DATA 表中符合条件的记录，并返回删除的数量
+ deleteData = true;
+ break;
+ default:// 如果无法匹配到 Uri
+ throw new IllegalArgumentException("Unknown URI " + uri);// 抛出 IllegalArgumentException 异常
+ }
+ if (count > 0) {// 如果删除的数量大于 0
+ if (deleteData) {
+ getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null);
+ } // 如果删除的是 TABLE.DATA 表中的记录，则通知 content resolver 对应的 Uri 对应的笔记数据已经发生了变化
+ getContext().getContentResolver().notifyChange(uri, null);
+ }
+ return count;// 返回删除的数量
+ }
+
+ @Override
+ public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
+ int count = 0;// 受影响的行数
+ String id = null;// 被更新的笔记或数据项的ID
+ SQLiteDatabase db = mHelper.getWritableDatabase();// 获取可写数据库
+ boolean updateData = false;// 是否更新数据项
+
+ switch (mMatcher.match(uri)) {// 使用 switch 语句处理不同类型的 URI
+ case URI_NOTE:
+ increaseNoteVersion(-1, selection, selectionArgs);// 在更新前增加所有受影响的笔记的版本号
+ count = db.update(TABLE.NOTE, values, selection, selectionArgs);// 更新数据库中的行并获取受影响的行数
+
+ break;
+ case URI_NOTE_ITEM:
+ id = uri.getPathSegments().get(1);// 在更新前增加笔记的版本号
+ increaseNoteVersion(Long.valueOf(id), selection, selectionArgs); // 更新数据库中的行并获取受影响的行数
+ count = db.update(TABLE.NOTE, values, NoteColumns.ID + "=" + id
+ + parseSelection(selection), selectionArgs);
+ break;
+ case URI_DATA:
+ count = db.update(TABLE.DATA, values, selection, selectionArgs);
+ updateData = true;
+ break;
+ case URI_DATA_ITEM:
+ id = uri.getPathSegments().get(1);
+ count = db.update(TABLE.DATA, values, DataColumns.ID + "=" + id
+ + parseSelection(selection), selectionArgs);
+ updateData = true;
+ break;
+ default:
+ throw new IllegalArgumentException("Unknown URI " + uri);
+ }
+ // 如果有行被更新，通知已注册的 ContentObserver
+ if (count > 0) {
+ if (updateData) {
+ getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null);
+ }
+ getContext().getContentResolver().notifyChange(uri, null);
+ }
+ return count; // 返回受影响的行数
+ }
+ // 辅助方法，如果传递了 selection 参数，则将其添加到 SQL 查询中
+ private String parseSelection(String selection) {
+ return (!TextUtils.isEmpty(selection) ? " AND (" + selection + ')' : "");
+ }
+ // 辅助方法，在更新笔记之前增加其版本号
+ private void increaseNoteVersion(long id, String selection, String[] selectionArgs) {
+ StringBuilder sql = new StringBuilder(120);
+ sql.append("UPDATE ");
+ sql.append(TABLE.NOTE);
+ sql.append(" SET ");
+ sql.append(NoteColumns.VERSION);
+ sql.append("=" + NoteColumns.VERSION + "+1 ");
+ // 如果传递了 ID 或 selection 参数，则将其添加到 SQL 查询中
+ if (id > 0 || !TextUtils.isEmpty(selection)) {
+ sql.append(" WHERE ");
+ }
+ if (id > 0) {
+ sql.append(NoteColumns.ID + "=" + String.valueOf(id));
+ }
+ if (!TextUtils.isEmpty(selection)) {
+ String selectString = id > 0 ? parseSelection(selection) : selection;
+ for (String args : selectionArgs) {
+ selectString = selectString.replaceFirst("\\?", args);
+ }
+ sql.append(selectString);
+ }
+
+ mHelper.getWritableDatabase().execSQL(sql.toString());// 执行 SQL 查询以更新笔记的版本号
+ }
+
+ @Override
+ public String getType(Uri uri) {
+ // TODO Auto-generated method stub这是一个待办事项，需要根据 ContentProvider需求添加适当的 MIME类型。
+ return null;
+ }
+
+}
diff --git a/app/src/main/java/net/micode/notes/gtask/data/MetaData.java b/app/src/main/java/net/micode/notes/gtask/data/MetaData.java
new file mode 100644
index 0000000..b08b2f8
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/gtask/data/MetaData.java
@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.gtask.data;
+
+import android.database.Cursor;
+import android.util.Log;
+
+import net.micode.notes.tool.GTaskStringUtils;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+
+public class MetaData extends Task {
+ private final static String TAG = MetaData.class.getSimpleName();
+
+ private String mRelatedGid = null;
+
+ public void setMeta(String gid, JSONObject metaInfo) {
+ try {
+ metaInfo.put(GTaskStringUtils.META_HEAD_GTASK_ID, gid);
+ } catch (JSONException e) {
+ Log.e(TAG, "failed to put related gid");
+ }
+ setNotes(metaInfo.toString());
+ setName(GTaskStringUtils.META_NOTE_NAME);
+ }
+ /*
+ 这段代码定义了一个名为 MetaData 的类，它继承了 Task 类。
+ Meta Data 类有一个私有的属性 mRelatedGid，它的值为 null。
+ 类中有两个方法，分别为 setMeta 和 getRelatedGid。
+ setMeta 方法接受两个参数，一个字符串 gid 和一个 JSON 对象 metaInfo。
+ 此方法会尝试在 metaInfo 对象中添加一个以 GTaskStringUtils.META_HEAD_GTASK_ID 为键、gid 为值的键值对，如果添加失败则输出一个错误日志。
+ 随后该方法使用 setNotes 方法将 metaInfo 对象的字符串形式设置为任务的说明，并设置任务的名称为 GTaskStringUtils.META_NOTE_NAME。
+ getRelatedGid 方法返回 mRelatedGid 属性的值。
+ */
+
+ public String getRelatedGid() {
+ return mRelatedGid;
+ }
+ /*getRelatedGid() 方法：
+ 该方法返回 MetaData 对象的 mRelatedGid 字段，即任务的全局唯一标识符 gid。
+ */
+
+ @Override
+ public boolean isWorthSaving() {
+ return getNotes() != null;
+ }
+ /*isWorthSaving() 方法：该方法覆盖了 Task 类中的同名方法。
+ 该方法返回一个布尔值，指示任务是否值得保存。
+ 在这个实现中，如果任务的备注信息不为 null，则任务值得保存，返回 true；
+ 否则返回 false。
+ */
+
+
+ @Override
+ public void setContentByRemoteJSON(JSONObject js) {// 调用父类的方法来设置 JSON 内容
+ super.setContentByRemoteJSON(js);// 检查是否存在与对象相关联的注释（notes）
+ if (getNotes() != null) {
+ try {
+ // 将注释内容解析为 JSON 对象
+ JSONObject metaInfo = new JSONObject(getNotes().trim());
+ // 从 JSON 对象中提取 GTASK_ID 字段的值，并将其存储在 mRelatedGid 变量中
+ mRelatedGid = metaInfo.getString(GTaskStringUtils.META_HEAD_GTASK_ID);
+ } catch (JSONException e) {
+ ///如果在解析注释时出现异常，则将 mRelatedGid 变量设置为 null，并记录一个警告日志
+ Log.w(TAG, "failed to get related gid");
+ mRelatedGid = null;
+ }
+ }
+ }
+ /*这段代码是 MetaData 类的另外两个方法，isWorthSaving 和 setContentByRemoteJSON。
+
+ isWorthSaving 方法覆盖了 Task 类中的同名方法。
+ 它返回一个布尔值，如果任务的说明不为 null，则返回 true，否则返回 false。
+
+ setContentByRemoteJSON 方法覆盖了 Task 类中的同名方法。
+ 它接受一个 JSONObject 对象 js。首先，它调用了 Task 类中的 setContentByRemoteJSON 方法。
+ 然后，它检查任务的说明是否为 null。
+ 如果不是 null，则将它转换为一个 JSONObject 对象 metaInfo，然后从 metaInfo 对象中获取以 GTaskStringUtils.META_HEAD_GTASK_ID 为键的字符串值，
+ 将它赋值给 mRelatedGid 属性。如果无法从 metaInfo 对象中获取相关键值对，则将 mRelatedGid 属性赋值为 null，并输出一个警告日志。*/
+
+ @Override
+ public void setContentByLocalJSON(JSONObject js) {
+ // this function should not be called
+ throw new IllegalAccessError("MetaData:setContentByLocalJSON should not be called");
+ }
+
+ @Override
+ public JSONObject getLocalJSONFromContent() {
+ throw new IllegalAccessError("MetaData:getLocalJSONFromContent should not be called");
+ }
+
+ @Override
+ public int getSyncAction(Cursor c) {
+ throw new IllegalAccessError("MetaData:getSyncAction should not be called");
+ }
+
+}
+/*这段代码定义了三个方法，均为覆盖（override）自父类 Task 的方法。这些方法被 MetaData 类重写，主要是为了禁止使用它们来保证程序的正确性。
+
+setContentByLocalJSON 方法不应该被调用，因此该方法的实现中直接抛出了一个 IllegalAccessError 异常，提示该方法不应该被调用。
+
+getLocalJSONFromContent 方法也不应该被调用，因此其实现方法与上述方法相同，也会抛出IllegalAccessError 异常。
+
+getSyncAction 方法同样不应该被调用，并且其实现方法与前两个方法类似，会抛出一个IllegalAccessError 异常。
+
+这些方法的目的是为了确保程序在运行时不会意外地调用这些方法，从而导致错误发生。如果有人在代码中尝试调用这些方法，将会得到明确的错误提示。*/
\ No newline at end of file
diff --git a/app/src/main/java/net/micode/notes/gtask/data/Node.java b/app/src/main/java/net/micode/notes/gtask/data/Node.java
new file mode 100644
index 0000000..44ab2bc
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/gtask/data/Node.java
@@ -0,0 +1,183 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.gtask.data;
+
+import android.database.Cursor;
+
+import org.json.JSONObject;
+
+public abstract class Node {
+ public static final int SYNC_ACTION_NONE = 0;
+
+ public static final int SYNC_ACTION_ADD_REMOTE = 1;
+
+ public static final int SYNC_ACTION_ADD_LOCAL = 2;
+
+ public static final int SYNC_ACTION_DEL_REMOTE = 3;
+
+ public static final int SYNC_ACTION_DEL_LOCAL = 4;
+
+ public static final int SYNC_ACTION_UPDATE_REMOTE = 5;
+
+ public static final int SYNC_ACTION_UPDATE_LOCAL = 6;
+
+ public static final int SYNC_ACTION_UPDATE_CONFLICT = 7;
+
+ public static final int SYNC_ACTION_ERROR = 8;
+
+ private String mGid;
+
+ private String mName;
+
+ private long mLastModified;
+
+ private boolean mDeleted;
+/*这是一个抽象类 Node 的定义，其中包含以下几个字段和常量：
+
+字段 mGid：表示节点的全局唯一标识符 gid，每个节点都有一个唯一的 gid。
+
+字段 mName：表示节点的名称，该字段为字符串类型。
+
+字段 mLastModified：表示节点最后修改的时间戳，以毫秒为单位。
+
+字段 mDeleted：表示节点是否被删除（true 表示已删除，false 表示未删除）。
+
+常量 SYNC_ACTION_*：这些常量表示同步操作的各种情况。可以使用这些常量来指定要执行的同步操作类型。具体而言，这些常量的含义分别如下：
+
+SYNC_ACTION_NONE：不进行同步操作；
+
+SYNC_ACTION_ADD_REMOTE：在远程服务器上添加一个新节点；
+
+SYNC_ACTION_ADD_LOCAL：在本地数据库中添加一个新节点；
+
+SYNC_ACTION_DEL_REMOTE：在远程服务器上删除一个节点；
+
+SYNC_ACTION_DEL_LOCAL：在本地数据库中删除一个节点；
+
+SYNC_ACTION_UPDATE_REMOTE：在远程服务器上更新一个节点；
+
+SYNC_ACTION_UPDATE_LOCAL：在本地数据库中更新一个节点；
+
+SYNC_ACTION_UPDATE_CONFLICT：发生同步冲突，需要解决冲突；
+
+SYNC_ACTION_ERROR：同步错误，同步失败。
+
+此外，Node 类还是一个抽象类，无法直接创建它的实例。所有的节点都是 Node 类的子类，以具体类型的形式继承 Node 类，并提供它们自己的实现。*/
+ public Node() {
+ mGid = null;
+ mName = "";
+ mLastModified = 0;
+ mDeleted = false;
+ }
+/*这是 Node 类的默认构造方法。该方法会初始化节点的各个字段，包括 mGid、mName、mLastModified 和 mDeleted。
+
+具体而言，mGid 字段被初始化为 null，表示此时节点没有被分配一个全局唯一标识符；
+mName 字段被初始化为空字符串，表示节点名称为空；
+mLastModified 字段被初始化为 0，表示节点最后修改时间的时间戳为 0（即从未修改过）；
+mDeleted 字段被初始化为 false，表示节点当前未被删除。
+ */
+ public abstract JSONObject getCreateAction(int actionId);
+
+ public abstract JSONObject getUpdateAction(int actionId);
+
+ public abstract void setContentByRemoteJSON(JSONObject js);
+
+ public abstract void setContentByLocalJSON(JSONObject js);
+
+ public abstract JSONObject getLocalJSONFromContent();
+
+ public abstract int getSyncAction(Cursor c);
+/*这是 Node 抽象类中的一些抽象方法，需要在其子类中进行实现。这些方法分别如下：
+
+getCreateAction(int actionId)：该方法用于生成在远程服务器上创建一个新节点的 JSON 数据。actionId 表示同步操作类型，可以根据不同的同步操作类型来生成对应的 JSON 数据。
+
+getUpdateAction(int actionId)：该方法用于生成在远程服务器上更新一个节点的 JSON 数据，与 getCreateAction 方法类似，actionId 表示同步操作类型。
+
+setContentByRemoteJSON(JSONObject js)：该方法用于从远程服务器返回的 JSON 数据中设置节点对象的属性值。
+
+setContentByLocalJSON(JSONObject js)：该方法用于从本地数据库中读取的 JSON 数据中设置节点对象的属性值。
+
+getLocalJSONFromContent()：该方法将节点对象转换为本地数据库中的 JSON 形式。
+
+getSyncAction(Cursor c)：该方法返回表示节点同步操作的常量。
+
+这些抽象方法是用于描述哪些数据需要被从远程服务器或本地数据库中读取或写入，并且确定在特定同步操作期间执行的操作类型。这使得 Node 的子类可以根据具体情况对这些方法进行自定义实现，以适应不同场景的需求。*/
+ public void setGid(String gid) {
+ this.mGid = gid;
+ }
+/*这是 Node 类的 setGid 方法，用于设置节点的唯一标识符 gid。
+该方法接收一个 String 类型的参数 gid，表示要为节点设置的全局唯一标识符。
+在执行该方法时，将会将传入的 gid 参数赋值给 mGid 字段，以便在后续的操作中使用该值。
+这个方法可以被其子类调用来设置自己的 gid 值。
+ */
+ public void setName(String name) {
+ this.mName = name;
+ }
+/*这是 Node 类的一个方法，用于设置节点的名称 mName 的值。
+它接受一个字符串类型的参数 name，并将它赋值给 mName 字段。
+this 表示当前对象实例。
+ */
+ public void setLastModified(long lastModified) {
+ this.mLastModified = lastModified;
+ }
+/*setLastModified具有一个long类型的参数lastModified，表示将该对象的最后修改时间设置为给定值。
+在方法体内，关键字this表示当前对象的引用，即在调用该方法的对象。
+将参数lastModified的值分配给该对象的私有成员变量mLastModified，以便以后可以通过getter方法检索该值。
+ */
+ public void setDeleted(boolean deleted) {
+ this.mDeleted = deleted;
+ }
+/*这是一个Java类中的公共方法，名称为setDeleted，它具有一个boolean类型的参数deleted，表示将该对象的删除状态设置为给定的值。
+
+在方法体内，关键字this表示当前对象的引用，即在调用该方法的对象。
+将参数deleted的值分配给该对象的私有成员变量mDeleted，以便以后可以通过getter方法检索该值。
+如果参数deleted的值为true，则表示该对象被删除；如果参数deleted的值为false，则表示该对象未被删除。
+ */
+ public String getGid() {
+ return this.mGid;
+ }
+
+ public String getName() {
+ return this.mName;
+ }
+/*这是一个Java类中的公共方法，名称分别为getGid和getName，它们都不具有任何参数，并返回该对象的私有成员变量mGid和mName的值，分别表示该对象的ID和名称。
+
+在方法体内，关键字this表示当前对象的引用，即在调用该方法的对象。
+这些方法通常用于获取对象的状态，而不是修改状态。
+例如，在代码中调用getGid方法将返回该对象的ID，以便在其他操作中使用该ID。
+同样，调用getName方法将返回该对象的名称。
+ */
+ public long getLastModified() {
+ return this.mLastModified;
+ }
+/*这是一个Java类中的公共方法，名称为getLastModified，它不具有任何参数，并返回该对象的私有成员变量mLastModified的值，表示该对象的最后修改时间。
+
+在方法体内，关键字this表示当前对象的引用，即在调用该方法的对象。
+这个方法通常用于获取对象的状态，以便在其他操作中使用该状态。
+例如，在代码中调用getLastModified方法将返回该对象的最后修改时间，以便在其他操作中使用该时间戳。
+ */
+ public boolean getDeleted() {
+ return this.mDeleted;
+ }
+/*这是一个Java类中的公共方法，名称为getDeleted，它不具有任何参数，并返回该对象的私有成员变量mDeleted的值，表示该对象是否被删除。
+
+在方法体内，关键字this表示当前对象的引用，即在调用该方法的对象。
+这个方法通常用于获取对象的状态，以便在其他操作中使用该状态。
+例如，在代码中调用getDeleted方法将返回一个boolean类型的值，表示该对象是否被删除。
+如果该值为true，则表示该对象已被删除；如果该值为false，则表示该对象未被删除。
+ */
+}
diff --git a/app/src/main/java/net/micode/notes/gtask/data/SqlData.java b/app/src/main/java/net/micode/notes/gtask/data/SqlData.java
new file mode 100644
index 0000000..5eaaac9
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/gtask/data/SqlData.java
@@ -0,0 +1,249 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.gtask.data;
+
+import android.content.ContentResolver;
+import android.content.ContentUris;
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.Cursor;
+import android.net.Uri;
+import android.util.Log;
+
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.DataConstants;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.data.NotesDatabaseHelper.TABLE;
+import net.micode.notes.gtask.exception.ActionFailureException;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+
+public class SqlData {
+ private static final String TAG = SqlData.class.getSimpleName();
+
+ private static final int INVALID_ID = -99999;
+
+ public static final String[] PROJECTION_DATA = new String[] {
+ DataColumns.ID, DataColumns.MIME_TYPE, DataColumns.CONTENT, DataColumns.DATA1,
+ DataColumns.DATA3
+ };
+/*这是一个Java类，名称为SqlData，其中定义了一些静态变量和常量，用于在类内和类外引用。
+<<<<<<< HEAD
+第一行定义了一个名为TAG的静态常量字符串，用于在日志中标识该类。这个字符串的值是SqlData类的简单名称。
+第二行定义了一个名为INVALID_ID的私有静态常量整数，用于表示无效的ID。该值被设置为-99999。
+第三行定义了一个名为PROJECTION_DATA的公共静态常量字符串数组，用于定义一个查询所需返回的列。这些列包括DataColumns类中定义的ID、MIME_TYPE、CONTENT、DATA1和DATA3。
+这些变量和常量都被声明为静态的，这意味着它们属于类本身，而不是类的实例。因此，它们可以在类的所有实例之间共享和访问。
+这些变量和常量的使用可以提高代码的可读性和可维护性，并避免在代码中多次重复相同的值。
+第一行定义了一个名为TAG的静态常量字符串，用于在日志中标识该类。这个字符串的值是SqlData类的简单名称。
+
+第二行定义了一个名为INVALID_ID的私有静态常量整数，用于表示无效的ID。该值被设置为-99999。
+
+第三行定义了一个名为PROJECTION_DATA的公共静态常量字符串数组，用于定义一个查询所需返回的列。这些列包括DataColumns类中定义的ID、MIME_TYPE、CONTENT、DATA1和DATA3。
+
+这些变量和常量都被声明为静态的，这意味着它们属于类本身，而不是类的实例。因此，它们可以在类的所有实例之间共享和访问。这些变量和常量的使用可以提高代码的可读性和可维护性，并避免在代码中多次重复相同的值。*/
+ public static final int DATA_ID_COLUMN = 0;
+
+ public static final int DATA_MIME_TYPE_COLUMN = 1;
+
+ public static final int DATA_CONTENT_COLUMN = 2;
+
+ public static final int DATA_CONTENT_DATA_1_COLUMN = 3;
+
+ public static final int DATA_CONTENT_DATA_3_COLUMN = 4;
+
+ private ContentResolver mContentResolver;
+
+ private boolean mIsCreate;
+
+ private long mDataId;
+
+ private String mDataMimeType;
+
+ private String mDataContent;
+
+ private long mDataContentData1;
+
+ private String mDataContentData3;
+
+ private ContentValues mDiffDataValues;
+/*这是一个Java类，名称为SqlData，其中定义了一些成员变量和常量，用于在类内存储和操作数据。
+
+第一行定义了一个名为DATA_ID_COLUMN的公共静态常量整数，用于表示列索引中的数据ID列。
+
+第二行定义了一个名为DATA_MIME_TYPE_COLUMN的公共静态常量整数，用于表示列索引中的MIME类型列。
+
+第三行定义了一个名为DATA_CONTENT_COLUMN的公共静态常量整数，用于表示列索引中的内容列。
+
+第四行定义了一个名为DATA_CONTENT_DATA_1_COLUMN的公共静态常量整数，用于表示列索引中的DATA1列。
+
+第五行定义了一个名为DATA_CONTENT_DATA_3_COLUMN的公共静态常量整数，用于表示列索引中的DATA3列。
+
+接下来的几行定义了该类的一些成员变量，包括ContentResolver类型的mContentResolver、boolean类型的mIsCreate、long类型的mDataId、String类型的mDataMimeType、String类型的mDataContent、long类型的mDataContentData1、String类型的mDataContentData3和ContentValues类型的mDiffDataValues。这些变量表示了该类的不同数据属性。
+
+其中，ContentValues是一个键值对的集合，用于在Android应用中存储和操作数据。在该类中，mDiffDataValues被用于存储该对象的数据属性的差异，即该对象已更改但尚未提交到数据库中的值。*/
+ // 构造函数用于初始化一个SqlData对象的实例
+ public SqlData(Context context) {
+ mContentResolver = context.getContentResolver();// 获取ContentResolver对象，用于访问ContentProvider中的数据
+ mIsCreate = true;// 初始化数据的创建状态
+ mDataId = INVALID_ID; // 初始化数据的ID值
+ mDataMimeType = DataConstants.NOTE;// 初始化数据的MIME类型为NOTE
+ mDataContent = ""; // 初始化数据的内容为空字符串
+ mDataContentData1 = 0; // 初始化数据的数据内容Data1为0
+ mDataContentData3 = "";// 初始化数据的数据内容Data3为空字符串
+ mDiffDataValues = new ContentValues();// 初始化差异数据的ContentValues对象，用于保存数据的不同之处
+ }
+
+ // 定义SqlData类，该类用于处理数据库中的数据
+ public SqlData(Context context, Cursor c) {
+ // 获取ContentResolver对象
+ mContentResolver = context.getContentResolver();
+ // 设置初始状态为非创建状态
+ mIsCreate = false;
+ // 从Cursor对象中读取数据，并将数据加载到
+ loadFromCursor(c);
+ // 创建一个新的ContentValues对象，用于存储数据的差异
+ mDiffDataValues = new ContentValues();
+ }
+/*该构造函数主要是用于初始化SqlData对象，并且在初始化过程中从Cursor对象中读取数据，同时创建一个新的ContentValues对象，以备后续存储数据的差异。*/
+/*定义了一个私有方法loadFromCursor，该方法接收一个Cursor对象作为参数，并且在该方法中从Cursor对象中读取数据，将这些数据加载到SqlData对象中。*/
+// 从Cursor对象中读取数据，并将数据加载到SqlData对象中
+ private void loadFromCursor(Cursor c) {
+ // 从Cursor对象中读取数据id
+ mDataId = c.getLong(DATA_ID_COLUMN);
+ // 从Cursor对象中读取数据类型
+ mDataMimeType = c.getString(DATA_MIME_TYPE_COLUMN);
+ // 从Cursor对象中读取数据内容
+ mDataContent = c.getString(DATA_CONTENT_COLUMN);
+ // 从Cursor对象中读取数据内容的第一个数据项
+ mDataContentData1 = c.getLong(DATA_CONTENT_DATA_1_COLUMN);
+ // 从Cursor对象中读取数据内容的第三个数据项
+ mDataContentData3 = c.getString(DATA_CONTENT_DATA_3_COLUMN);
+ }
+/*该方法主要是用于从Cursor对象中读取数据，并将这些数据加载到SqlData对象的相关成员变量中。其中，数据的读取顺序和类型需要与Cursor对象中的列名一一对应。*/
+ public void setContent(JSONObject js) throws JSONException {// 设置SqlData对象的内容
+ long dataId = js.has(DataColumns.ID) ? js.getLong(DataColumns.ID) : INVALID_ID;// 从JSONObject对象中获取数据id
+ if (mIsCreate || mDataId != dataId) {
+ mDiffDataValues.put(DataColumns.ID, dataId);
+ }
+ mDataId = dataId; // 如果当前SqlData对象是创建状态，或者数据id与当前对象的数据id不同，将数据id加入到差异数据值对象中
+
+//setContent方法的主要部分，用于设置SqlData对象的各个成员变量值，并且在设置过程中检查差异数据。
+ String dataMimeType = js.has(DataColumns.MIME_TYPE) ? js.getString(DataColumns.MIME_TYPE)
+ : DataConstants.NOTE;
+ if (mIsCreate || !mDataMimeType.equals(dataMimeType)) {
+ mDiffDataValues.put(DataColumns.MIME_TYPE, dataMimeType);
+ }
+ mDataMimeType = dataMimeType;
+ // 从JSONObject对象中获取数据类型，并将其设置为SqlData对象的数据类型
+ String dataContent = js.has(DataColumns.CONTENT) ? js.getString(DataColumns.CONTENT) : "";
+ if (mIsCreate || !mDataContent.equals(dataContent)) {
+ mDiffDataValues.put(DataColumns.CONTENT, dataContent);
+ }
+ mDataContent = dataContent;
+ // 从JSONObject对象中获取数据内容的第一个数据项，并将其设置为SqlData对象的数据内容的第一个数据项
+ long dataContentData1 = js.has(DataColumns.DATA1) ? js.getLong(DataColumns.DATA1) : 0;
+ if (mIsCreate || mDataContentData1 != dataContentData1) {
+ mDiffDataValues.put(DataColumns.DATA1, dataContentData1);
+ }
+ mDataContentData1 = dataContentData1;
+ // 从JSONObject对象中获取数据内容的第三个数据项，并将其设置为SqlData对象的数据内容的第三个数据项
+ String dataContentData3 = js.has(DataColumns.DATA3) ? js.getString(DataColumns.DATA3) : "";
+ if (mIsCreate || !mDataContentData3.equals(dataContentData3)) {
+ mDiffDataValues.put(DataColumns.DATA3, dataContentData3);
+ }
+ mDataContentData3 = dataContentData3;
+ }
+/*该代码段主要是根据JSONObject对象中的数据，设置SqlData对象的相应成员变量，并且在设置过程中检查差异数据。
+ 其中，如果当前SqlData对象是创建状态，或者相应成员变量的值与JSONObject对象中的值不同，就将相应的数据加入到差异数据值对象中。
+ 这些差异数据值将在后续的操作中被用于更新数据库中的数据。*/
+ public JSONObject getContent() throws JSONException {
+ if (mIsCreate) {
+ Log.e(TAG, "it seems that we haven't created this in database yet");
+ return null;
+ }
+ JSONObject js = new JSONObject();
+ js.put(DataColumns.ID, mDataId);
+ js.put(DataColumns.MIME_TYPE, mDataMimeType);
+ js.put(DataColumns.CONTENT, mDataContent);
+ js.put(DataColumns.DATA1, mDataContentData1);
+ js.put(DataColumns.DATA3, mDataContentData3);
+ return js;
+ }
+/*这段代码定义了一个名为getContent()的方法，它返回一个JSONObject对象。
+该方法可能会抛出一个JSONException异常，因此在调用该方法时需要处理该异常。
+方法体内的第一条语句检查一个名为mIsCreate的 boolean 类型的成员变量是否为 true，如果是，则输出一个错误日志并返回 null。否则，方法会创建一个新的JSONObject对象，并向它添加一些键值对，这些键值对是由mDataId、mDataMimeType、mDataContent、mDataContentData1和mDataContentData3这些成员变量组成的。
+最后，该方法返回一个JSONObject对象，其中包含了这些成员变量的值。*/
+
+
+ public void commit(long noteId, boolean validateVersion, long version) {
+
+ if (mIsCreate) {
+ if (mDataId == INVALID_ID && mDiffDataValues.containsKey(DataColumns.ID)) {
+ mDiffDataValues.remove(DataColumns.ID);
+ }
+
+ mDiffDataValues.put(DataColumns.NOTE_ID, noteId);
+ Uri uri = mContentResolver.insert(Notes.CONTENT_DATA_URI, mDiffDataValues);
+ try {
+ mDataId = Long.valueOf(uri.getPathSegments().get(1));
+ } catch (NumberFormatException e) {
+ Log.e(TAG, "Get note id error :" + e.toString());
+ throw new ActionFailureException("create note failed");
+ }
+ } else {
+ if (mDiffDataValues.size() > 0) {
+ int result = 0;
+ if (!validateVersion) {
+ result = mContentResolver.update(ContentUris.withAppendedId(
+ Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues, null, null);
+ } else {
+ result = mContentResolver.update(ContentUris.withAppendedId(
+ Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues,
+ " ? in (SELECT " + NoteColumns.ID + " FROM " + TABLE.NOTE
+ + " WHERE " + NoteColumns.VERSION + "=?)", new String[] {
+ String.valueOf(noteId), String.valueOf(version)
+ });
+ }
+ if (result == 0) {
+ Log.w(TAG, "there is no update. maybe user updates note when syncing");
+ }
+ }
+ }
+
+ mDiffDataValues.clear();
+ mIsCreate = false;
+ }
+/*这段代码定义了一个名为commit()的方法，用于将已经修改的数据保存到数据库中。
+方法接受三个参数：noteId为 long 类型，表示当前笔记的 ID;
+validateVersion为 boolean 类型，表示是否需要验证版本;
+version为 long 类型，表示当前笔记的版本。
+方法体内的第一条语句检查一个名为mIsCreate的boolean类型的成员变量是否为true，如果是，则表示当前是创建一个新的数据，需要将数据插入到数据库中。
+如果mDiffDataValues中包含 DataColumns.ID 这个键值对，表明该成员变量的值已经被赋值，需要将其移除，因为它是自增的主键，不应该由用户指定。
+接下来，将 DataColumns.NOTE_ID 对应的值设置为noteId，并将mDiffDataValues插入到Notes.CONTENT_DATA_URI中获取Uri对象，然后Uri对象中获取新的数据的 ID 并设置给成员变量mDataId。
+如果获取 ID 失败，则记录错误日志并抛出一个ActionFailureException异常。
+如果mIsCreate的值为 false，则表示需要更新数据库中的数据。
+如果mDiffDataValues中有数据，则调用mContentResolver.update()方法对数据库进行更新。
+如果validateVersion的值为 false，则直接更新数据，否则需要先验证版本。验证版本的过程是通过查询NoteColumns.VERSION等于version且NoteColumns.ID等于的noteId
+无论是插入数据还是更新数据，都需要清空mDiffDataValues的内容并将mIsCreate设为 false，表示数据已经提交保存到数据库中。*/
+ public long getId() {
+ return mDataId;
+ }//定义了一个名为getId()的方法，返回一个long类型的值，表示当前笔记的ID。
+ //直接返回成员变量mDataId，因此不会引发任何异常。
+}
\ No newline at end of file
diff --git a/app/src/main/java/net/micode/notes/gtask/data/SqlNote.java b/app/src/main/java/net/micode/notes/gtask/data/SqlNote.java
new file mode 100644
index 0000000..ec251ec
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/gtask/data/SqlNote.java
@@ -0,0 +1,670 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.gtask.data;
+
+import android.appwidget.AppWidgetManager;
+import android.content.ContentResolver;
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.Cursor;
+import android.net.Uri;
+import android.util.Log;
+
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.gtask.exception.ActionFailureException;
+import net.micode.notes.tool.GTaskStringUtils;
+import net.micode.notes.tool.ResourceParser;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.util.ArrayList;
+
+
+public class SqlNote {
+ private static final String TAG = SqlNote.class.getSimpleName();
+
+ private static final int INVALID_ID = -99999;
+
+ public static final String[] PROJECTION_NOTE = new String[] {
+ NoteColumns.ID, NoteColumns.ALERTED_DATE, NoteColumns.BG_COLOR_ID,
+ NoteColumns.CREATED_DATE, NoteColumns.HAS_ATTACHMENT, NoteColumns.MODIFIED_DATE,
+ NoteColumns.NOTES_COUNT, NoteColumns.PARENT_ID, NoteColumns.SNIPPET, NoteColumns.TYPE,
+ NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE, NoteColumns.SYNC_ID,
+ NoteColumns.LOCAL_MODIFIED, NoteColumns.ORIGIN_PARENT_ID, NoteColumns.GTASK_ID,
+ NoteColumns.VERSION
+ };
+/*定义了一个名为SqlNote的类。这个类包含了一些静态常量和一个名为PROJECTION_NOTE的公共静态字符串数组，该数组包含了用于查询笔记数据的列名。
+
+具体来说，PROJECTION_NOTE数组包含了以下列名：
+
+ID： 笔记的唯一标识符
+ALERTED_DATE： 笔记提醒的日期
+BG_COLOR_ID： 笔记背景颜色的标识符
+CREATED_DATE： 笔记创建的日期
+HAS_ATTACHMENT： 笔记是否有附件
+MODIFIED_DATE： 笔记最后修改的日期
+NOTES_COUNT： 笔记下的子笔记数量
+PARENT_ID： 父笔记的唯一标识符
+片段： 笔记的摘要
+类型： 笔记的类型
+WIDGET_ID： 关联的小部件的唯一标识符
+WIDGET_TYPE： 关联的小部件的类型
+SYNC_ID： 与笔记相关的同步服务的唯一标识符
+LOCAL_MODIFIED： 笔记是否在本地被修改过
+ORIGIN_PARENT_ID： 笔记的原始父笔记的唯一标识符
+GTASK_ID： 与Google Tasks相关的唯一标识符
+版本： 笔记的版本号
+这些列名可以用于查询笔记数据，并且在SqlNote类中被定义为静态常量，以便在整个应用程序中使用。*/
+ public static final int ID_COLUMN = 0;
+
+ public static final int ALERTED_DATE_COLUMN = 1;
+
+ public static final int BG_COLOR_ID_COLUMN = 2;
+
+ public static final int CREATED_DATE_COLUMN = 3;
+
+ public static final int HAS_ATTACHMENT_COLUMN = 4;
+
+ public static final int MODIFIED_DATE_COLUMN = 5;
+
+ public static final int NOTES_COUNT_COLUMN = 6;
+
+ public static final int PARENT_ID_COLUMN = 7;
+
+ public static final int SNIPPET_COLUMN = 8;
+
+ public static final int TYPE_COLUMN = 9;
+
+ public static final int WIDGET_ID_COLUMN = 10;
+
+ public static final int WIDGET_TYPE_COLUMN = 11;
+
+ public static final int SYNC_ID_COLUMN = 12;
+
+ public static final int LOCAL_MODIFIED_COLUMN = 13;
+
+ public static final int ORIGIN_PARENT_ID_COLUMN = 14;
+
+ public static final int GTASK_ID_COLUMN = 15;
+
+ public static final int VERSION_COLUMN = 16;
+/*这是SqlNote类中定义的一些静态常量，它们表示在PROJECTION_NOTE数组中每个列名的索引位置。
+这些常量被用于访问查询结果中特定列的值。
+ */
+ private Context mContext;
+
+ private ContentResolver mContentResolver;
+
+ private boolean mIsCreate;
+
+ private long mId;
+
+ private long mAlertDate;
+
+ private int mBgColorId;
+
+ private long mCreatedDate;
+
+ private int mHasAttachment;
+
+ private long mModifiedDate;
+
+ private long mParentId;
+
+ private String mSnippet;
+
+ private int mType;
+
+ private int mWidgetId;
+
+ private int mWidgetType;
+
+ private long mOriginParent;
+
+ private long mVersion;
+
+ private ContentValues mDiffNoteValues;
+
+ private ArrayList mDataList;
+/*这是SqlNote类中的一些成员变量，它们被用于存储笔记的数据。下面是每个变量的含义：
+mContext： 上下文对象，用于访问应用程序的资源和服务。
+mContentResolver： 内容解析器对象，用于访问应用程序的数据。
+mIsCreate： 表示这个对象是否代表一个新创建的笔记。
+mId： 笔记的唯一标识符。
+mAlertDate： 笔记提醒的日期。
+mBgColorId： 笔记背景颜色的标识符。
+mCreatedDate： 笔记创建的日期。
+mHasAttachment： 表示笔记是否有附件。
+mModifiedDate： 笔记最后修改的
+mParentId: 父笔记的唯一标识符。
+mSnippet: 笔记的摘要。
+mType: 笔记的类型。
+mWidgetId: 关联的小部件的唯一标识符。
+mWidgetType: 关联的小部件的类型。
+mOriginParent: 笔记的原始父笔记的唯一标识符。
+mVersion: 笔记的版本号。
+mDiffNoteValues: 一个ContentValues对象，包含了与这个笔记相关的差异数据。
+mDataList: 一个ArrayList对象，包含了这个笔记的子笔记数据。
+这些成员变量被用于存储SqlNote对象的状态，并且可以用于从数据库中读取和写入笔记数据。
+其中一些成员变量还可以用于在应用程序中显示笔记的相关信息。
+ */
+ public SqlNote(Context context) {
+ mContext = context;
+ mContentResolver = context.getContentResolver();
+ mIsCreate = true;
+ mId = INVALID_ID;
+ mAlertDate = 0;
+ mBgColorId = ResourceParser.getDefaultBgId(context);
+ mCreatedDate = System.currentTimeMillis();
+ mHasAttachment = 0;
+ mModifiedDate = System.currentTimeMillis();
+ mParentId = 0;
+ mSnippet = "";
+ mType = Notes.TYPE_NOTE;
+ mWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID;
+ mWidgetType = Notes.TYPE_WIDGET_INVALIDE;
+ mOriginParent = 0;
+ mVersion = 0;
+ mDiffNoteValues = new ContentValues();
+ mDataList = new ArrayList();
+ }
+/*这是SqlNote类的构造函数，它用于创建一个新的SqlNote对象。在构造函数中，SqlNote对象的所有成员变量都被初始化为它们的默认值。具体来说，它们的初始值如下：
+mContext： 传入的上下文对象。
+mContentResolver： 从上下文对象中获取的内容解析器对象。
+mIsCreate： 设置为true，表示这是一个新创建
+mId： 设置为INVALID_ID，表示这个笔记还没有在数据库中分配一个有效的唯一标识符。
+mAlertDate： 设置为0，表示这个笔记没有提醒日期。
+mBgColorId： 设置为应用程序的默认背景颜色。
+mCreatedDate： 设置为当前时间的毫秒数，表示这个笔记的创建日期。
+mHasAttachment： 设置为0，表示这个笔记没有附件。
+mModifiedDate： 设置为当前时间的毫秒数，表示这个笔记的最后修改日期。
+mParentId： 设置为0，表示这个笔记没有父笔记。
+mSnippet： 设置为空字符串，表示这个笔记没有摘要。
+mType： 设置为Notes.TYPE_NOTE，表示这个笔记是一个普通笔记。
+mWidgetId： 设置为AppWidgetManager.INVALID_APPWIDGET_ID，表示这个笔记没有关联的小部件。
+mWidgetType： 设置为Notes.TYPE_WIDGET_INVALIDE，表示这个笔记没有关联的小部件类型。
+mOriginParent： 设置为0，表示这个笔记没有原始父笔记。
+mVersion： 设置为0，表示这个笔记的版本号为0。
+mDiffNoteValues： 创建一个新的ContentValues对象，用于存储这个笔记的差异数据。
+mDataList： 创建一个新的ArrayList对象，用于存储这个笔记的子笔记数据。
+在构造函数中，所有的成员变量都被初始化为它们的默认值，因此这个SqlNote对象代表了一个刚刚创建的新笔记。*/
+ public SqlNote(Context context, Cursor c) {
+ mContext = context;
+ mContentResolver = context.getContentResolver();
+ mIsCreate = false;
+ loadFromCursor(c);
+ mDataList = new ArrayList();
+ if (mType == Notes.TYPE_NOTE)
+ loadDataContent();
+ mDiffNoteValues = new ContentValues();
+ }
+/*这是SqlNote类的另一个构造函数，用于从数据库游标中加载已有的SqlNote对象。在构造函数中，SqlNote对象的所有成员变量都被初始化为它们从数据库中读取的值。具体来说：
+mContext： 传入的
+mContentResolver： 从上下文对象中获取的内容解析器
+mIsCreate： 设置为false，表示这个SqlNote对象代表的是一个已经存在于数据库中的笔记。
+loadFromCursor（c）： 调用loadFromCursor（）方法，从游标c中加载所有的笔记数据，包括笔记的标题、内容、创建日期、修改日期等等。
+mDataList： 创建一个新的ArrayList对象，用于存储
+loadDataContent（）： 如果这个笔记是一个普通笔记，则调用loadDataContent（）方法，从数据库中加载笔记的内容。
+mDiffNoteValues： 创建一个新的ContentValues对象，用于存储这个笔记的差异数据。
+通过这个构造函数，SqlNote对象可以从数据库中读取已有的笔记数据，并在内存中表示这个笔记。*/
+ public SqlNote(Context context, long id) {
+ mContext = context;
+ mContentResolver = context.getContentResolver();
+ mIsCreate = false;
+ loadFromCursor(id);
+ mDataList = new ArrayList();
+ if (mType == Notes.TYPE_NOTE)
+ loadDataContent();
+ mDiffNoteValues = new ContentValues();
+
+ }
+/*这是SqlNote类的另一个构造函数，用于从数据库中加载指定id的SqlNote对象。在构造函数中，SqlNote对象的所有成员变量都被初始化为它们从数据库中读取的值。具体来说：
+mContext： 传入的上下文对象。
+mContentResolver： 从上下文对象中获取的内容解析器对象。
+mIsCreate： 设置为false，表示这个SqlNote对象代表的是一个已经存在于
+loadFromCursor（id）： 调用loadFromCursor（）方法，从数据库中加载指定id的笔记数据，包括笔记的标题、内容、创建日期、修改日期等等。
+mDataList： 创建一个新的ArrayList对象，用于存储这个笔记的子笔记数据。
+loadDataContent（）： 如果这个笔记是一个普通笔记，则调用loadDataContent（）方法，从数据库中加载笔记的内容。
+mDiffNoteValues： 创建一个新的ContentValues对象，用于存储这个笔记的差异数据。
+通过这个构造函数，SqlNote对象可以从数据库中读取指定id的笔记数据，并在内存中表示这个笔记。*/
+ private void loadFromCursor(long id) {
+ Cursor c = null;
+ try {
+ c = mContentResolver.query(Notes.CONTENT_NOTE_URI, PROJECTION_NOTE, "(_id=?)",
+ new String[] {
+ String.valueOf(id)
+ }, null);
+ if (c != null) {
+ c.moveToNext();
+ loadFromCursor(c);
+ } else {
+ Log.w(TAG, "loadFromCursor: cursor = null");
+ }
+ } finally {
+ if (c != null)
+ c.close();
+ }
+ }
+/*这是SqlNote类的一个私有方法，用于从数据库中加载指定id的笔记数据。具体来说：
+首先，通过查询内容提供器Notes.CONTENT_NOTE_URI获取指定ID
+然后，如果游标不为null，将游标移到第一条记录，并调用loadFromCursor(Cursor c)方法，将游标中的所有记录加载到SqlNote对象中。
+最后，关闭游标对象。
+通过这个方法，SqlNote对象可以从数据库中查询指定id的笔记数据，并在内存中表示这个笔记。需要注意的是，在加载数据之后一定要及时关闭游标对象，以释放资源。*/
+ private void loadFromCursor(Cursor c) {
+ mId = c.getLong(ID_COLUMN);
+ mAlertDate = c.getLong(ALERTED_DATE_COLUMN);
+ mBgColorId = c.getInt(BG_COLOR_ID_COLUMN);
+ mCreatedDate = c.getLong(CREATED_DATE_COLUMN);
+ mHasAttachment = c.getInt(HAS_ATTACHMENT_COLUMN);
+ mModifiedDate = c.getLong(MODIFIED_DATE_COLUMN);
+ mParentId = c.getLong(PARENT_ID_COLUMN);
+ mSnippet = c.getString(SNIPPET_COLUMN);
+ mType = c.getInt(TYPE_COLUMN);
+ mWidgetId = c.getInt(WIDGET_ID_COLUMN);
+ mWidgetType = c.getInt(WIDGET_TYPE_COLUMN);
+ mVersion = c.getLong(VERSION_COLUMN);
+ }
+/*这是SqlNote类的一个私有方法，用于从游标中加载笔记数据。具体来说：
+通过游标对象c获取每个属性的值，并将其赋值给SqlNote对象的对应成员变量。
+其中，这些属性的含义如下：
+mId： 笔记的唯一标识符。
+mAlertDate： 笔记提醒时间，以毫秒为单位。
+mBgColorId： 笔记背景颜色的标识符。
+mCreatedDate： 笔记创建时间，以毫秒为单位。
+mHasAttachment： 笔记是否有附件（0表示没有，1表示有）。
+mModifiedDate： 笔记最近修改时间，以毫秒为单位。
+mParentId： 笔记的父笔记的唯一标识符。
+mSnippet： 笔记的摘要。
+mType： 笔记的类型，可以是普通笔记、清单笔记、便签等。
+mWidgetId： 笔记所关联的小部件的唯一标识符。
+mWidgetType： 笔记所关联的小部件的类型。
+m版本： 笔记的
+通过这个方法，SqlNote对象可以从游标中加载所有的笔记数据，并在内存中表示这个笔记。*/
+ private void loadDataContent() {
+ Cursor c = null;
+ mDataList.clear();
+ try {
+ c = mContentResolver.query(Notes.CONTENT_DATA_URI, SqlData.PROJECTION_DATA,
+ "(note_id=?)", new String[] {
+ String.valueOf(mId)
+ }, null);
+ if (c != null) {
+ if (c.getCount() == 0) {
+ Log.w(TAG, "it seems that the note has not data");
+ return;
+ }
+ while (c.moveToNext()) {
+ SqlData data = new SqlData(mContext, c);
+ mDataList.add(data);
+ }
+ } else {
+ Log.w(TAG, "loadDataContent: cursor = null");
+ }
+ } finally {
+ if (c != null)
+ c.close();
+ }
+ }
+/*这是SqlNote类的一个私有方法，用于从数据库中加载笔记的数据内容。具体来说：
+首先，通过查询内容提供器Notes.CONTENT_DATA_URI获取指定笔记ID的所有
+然后，清空数据列表mDataList。
+接着，如果游标不为null，遍历游标中的所有记录，并使用SqlData对象将每条记录转换成一个数据对象。将这些数据对象添加到数据列表mDataList中。
+最后，关闭游标对象。
+通过这个方法，SqlNote对象可以从数据库中查询指定笔记id的所有数据，将其转换成数据对象，并存储在内存中。需要注意的是，在加载数据之后一定要及时关闭游标对象，以释放资源。*/
+ public boolean setContent(JSONObject js) {
+ try {
+ JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
+ if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_SYSTEM) {
+ Log.w(TAG, "cannot set system folder");
+ }
+ /*这是SqlNote类的一个公有方法，用于设置笔记的内容。具体来说：
+ 首先，从Json对象js中获取笔记的元数据信息，即note对象。
+ 然后，判断获取的笔记类型是否为系统类型（Notes.TYPE_SYSTEM），如果是则输出警告信息并返回false。
+ 如果不是系统类型，则继续执行以下步骤。
+ 在这个方法中，对于非法的系统类型的笔记，将输出警告信息并返回false，不会更改SqlNote对象的内容。对于合法的笔记，该方法将根据传入的Json对象设置笔记的内容。但是，这个方法的具体实现并没有展示出来，需要查看该方法的后续代码才能了解更多信息。*/
+ else if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_FOLDER) {
+ // for folder we can only update the snnipet and type
+ String snippet = note.has(NoteColumns.SNIPPET) ? note
+ .getString(NoteColumns.SNIPPET) : "";
+ if (mIsCreate || !mSnippet.equals(snippet)) {
+ mDiffNoteValues.put(NoteColumns.SNIPPET, snippet);
+ }
+ mSnippet = snippet;
+
+ int type = note.has(NoteColumns.TYPE) ? note.getInt(NoteColumns.TYPE)
+ : Notes.TYPE_NOTE;
+ if (mIsCreate || mType != type) {
+ mDiffNoteValues.put(NoteColumns.TYPE, type);
+ }
+ mType = type;
+ }
+ /*如果获取的笔记类型是文件夹类型（Notes.TYPE_FOLDER），则该方法只能更新文件夹的片段（NoteColumns.SNIPPET）和类型（NoteColumns.TYPE）属性。
+ 如果传入的Json对象中包含片段属性（NoteColumns.SNIPPET），则将其值赋给片段变量，否则将其设置为空字符串。
+ 如果 SqlNote
+ 将当前的片段值（mSnippet）设置为获取的片段值（snippet）。
+ 如果传入的Json对象中包含类型属性（NoteColumns.TYPE），则将其值赋给type变量，否则将其设置为Notes.TYPE_NOTE（默认值）。
+ 如果 SqlNote
+ 将当前的类型值（mType）设置为获取的类型值（type）。
+ 通过这个方法，SqlNote对象可以根据传入的Json对象更新笔记的片段和类型属性。需要注意的是，对于文件夹类型的笔记，只能更新片段和类型属性，其他属性不能更改。*/
+ else if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_NOTE) {
+ JSONArray dataArray = js.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
+ long id = note.has(NoteColumns.ID) ? note.getLong(NoteColumns.ID) : INVALID_ID;
+ if (mIsCreate || mId != id) {
+ mDiffNoteValues.put(NoteColumns.ID, id);
+ }
+ mId = id;
+ /*代码检索到JSONArray叫dataArray从命名的 JSON 对象js.
+ 然后，代码检查是否
+ 如果mIsCreate为 true 或当前注释 ID 为mId不等于检索到的 ID，则代码将 ID 放在HashMap叫mDiffNoteValues使用put()方法与NoteColumns.ID常量作为键和检索到的 ID作为值。*/
+ long alertDate = note.has(NoteColumns.ALERTED_DATE) ? note
+ .getLong(NoteColumns.ALERTED_DATE) : 0;
+ if (mIsCreate || mAlertDate != alertDate) {
+ mDiffNoteValues.put(NoteColumns.ALERTED_DATE, alertDate);
+ }
+ mAlertDate = alertDate;
+ /*通过调用has()方法上的方法NoteColumns.ALERTED_DATE不断。如果注释有警报日期，则警报日期通过调用getLong()方法上NoteColumns.ALERTED_DATE不断。否则，它将警报日期设置为 0。
+ 如果mIsCreate为 true 或当前警报日期mAlertDate不等于检索到的警报日期，则代码将警报日期放在HashMap叫mDiffNoteValues使用put()方法与NoteColumns.ALERTED_DATE常量作为键，检索到的警报日期作为值。
+ 最后，代码将检索到的警报日期分配给名为mAlertDate.仅从此代码块中不清楚此变量的用途，但它可以在程序的其他地方使用。*/
+ int bgColorId = note.has(NoteColumns.BG_COLOR_ID) ? note
+ .getInt(NoteColumns.BG_COLOR_ID) : ResourceParser.getDefaultBgId(mContext);
+ if (mIsCreate || mBgColorId != bgColorId) {
+ mDiffNoteValues.put(NoteColumns.BG_COLOR_ID, bgColorId);
+ }
+ mBgColorId = bgColorId;
+ /*代码检查
+ 如果mIsCreate为 true 或当前背景颜色 ID 为 truemBgColorId不等于检索到的背景颜色 ID，则代码将背景颜色 ID 放在HashMap叫mDiffNoteValues使用put()方法与NoteColumns.BG_COLOR_ID常量作为键和检索到的背景色标识为
+ 最后，代码将检索到的背景颜色 ID 分配给名为mBgColorId.仅从此代码块中不清楚此变量的用途，但它可以在程序的其他地方使用。*/
+ long createDate = note.has(NoteColumns.CREATED_DATE) ? note
+ .getLong(NoteColumns.CREATED_DATE) : System.currentTimeMillis();
+ if (mIsCreate || mCreatedDate != createDate) {
+ mDiffNoteValues.put(NoteColumns.CREATED_DATE, createDate);
+ }
+ mCreatedDate = createDate;
+ /*调用has()方法上的方法NoteColumns.CREATED_DATE不断。如果注释具有创建日期，代码通过调用getLong()方法上NoteColumns.CREATED_DATE不断。否则，它将创建日期设置为当前系统时间以毫秒为单位，通过调用System.currentTimeMillis()方法。
+ 如果是mIsCreatemCreatedDate不等于检索到的创建日期，则代码将创建日期放在HashMap叫mDiffNoteValues使用put()方法与NoteColumns.CREATED_DATE常量作为键，检索到的创建日期作为值。
+ 最后，代码将检索到的创建日期分配给名为mCreatedDate.*/
+ int hasAttachment = note.has(NoteColumns.HAS_ATTACHMENT) ? note
+ .getInt(NoteColumns.HAS_ATTACHMENT) : 0;
+ if (mIsCreate || mHasAttachment != hasAttachment) {
+ mDiffNoteValues.put(NoteColumns.HAS_ATTACHMENT, hasAttachment);
+ }
+ mHasAttachment = hasAttachment;
+ /*检查注释是否具有附件。如果注释具有附件，则代码通过对常量调用方法来检索值。否则，它将值设置为 0。
+ 如果为 true，或者如果 的当前值不等于检索到的值，则代码使用以常量为键，检索到的值作为值的方法将值放入调用中。*/
+ long modifiedDate = note.has(NoteColumns.MODIFIED_DATE) ? note
+ .getLong(NoteColumns.MODIFIED_DATE) : System.currentTimeMillis();
+ if (mIsCreate || mModifiedDate != modifiedDate) {
+ mDiffNoteValues.put(NoteColumns.MODIFIED_DATE, modifiedDate);
+ }
+ mModifiedDate = modifiedDate;
+
+ long parentId = note.has(NoteColumns.PARENT_ID) ? note
+ .getLong(NoteColumns.PARENT_ID) : 0;
+ if (mIsCreate || mParentId != parentId) {
+ mDiffNoteValues.put(NoteColumns.PARENT_ID, parentId);
+ }
+ mParentId = parentId;
+
+ String snippet = note.has(NoteColumns.SNIPPET) ? note
+ .getString(NoteColumns.SNIPPET) : "";
+ if (mIsCreate || !mSnippet.equals(snippet)) {
+ mDiffNoteValues.put(NoteColumns.SNIPPET, snippet);
+ }
+ mSnippet = snippet;
+
+ int type = note.has(NoteColumns.TYPE) ? note.getInt(NoteColumns.TYPE)
+ : Notes.TYPE_NOTE;
+ if (mIsCreate || mType != type) {
+ mDiffNoteValues.put(NoteColumns.TYPE, type);
+ }
+ mType = type;
+
+ int widgetId = note.has(NoteColumns.WIDGET_ID) ? note.getInt(NoteColumns.WIDGET_ID)
+ : AppWidgetManager.INVALID_APPWIDGET_ID;
+ if (mIsCreate || mWidgetId != widgetId) {
+ mDiffNoteValues.put(NoteColumns.WIDGET_ID, widgetId);
+ }
+ mWidgetId = widgetId;
+
+ int widgetType = note.has(NoteColumns.WIDGET_TYPE) ? note
+ .getInt(NoteColumns.WIDGET_TYPE) : Notes.TYPE_WIDGET_INVALIDE;
+ if (mIsCreate || mWidgetType != widgetType) {
+ mDiffNoteValues.put(NoteColumns.WIDGET_TYPE, widgetType);
+ }
+ mWidgetType = widgetType;
+ /*这段代码在一个笔记应用中用于更新笔记的不同属性。下面是每个段的注释：
+ 首先检查笔记对象中是否包含最后修改日期属性，如果是则获取该属性的值，否则将当前时间作为最后修改日期。如果笔记对象是新创建的或最后修改日期与之前不同，则将其放入待更新的笔记属性集合中。最后将最后修改日期赋值给实例变量mModifiedDate。
+ 然后检查笔记对象中是否包含父笔记ID属性，如果是则获取该属性的值，否则将0作为父笔记ID。如果笔记对象是新创建的或父笔记ID与之前不同，则将其放入待更新的笔记属性集合中。最后将父笔记ID赋值给实例变量mParentId。
+ 接下来检查笔记对象中是否包含摘要属性，如果是则获取该属性的值，否则将空字符串作为摘要。如果笔记对象是新创建的或摘要与之前不同，则将其放入待更新的笔记属性集合中。最后将摘要赋值给实例变量mSnippet。
+ 然后检查笔记对象中是否包含类型属性，如果是则获取该属性的值，否则将默认类型Note作为类型。如果笔记对象是新创建的或类型与之前不同，则将其放入待更新的笔记属性集合中。最后将类型赋值给实例变量mType。
+ 接着检查笔记对象中是否包含小部件ID属性，如果是则获取该属性的值，否则将无效的小部件ID作为小部件ID。如果笔记对象是新创建的或小部件ID与之前不同，则将其放入待更新的笔记属性集合中。最后将小部件ID赋值给实例变量mWidgetId。
+ 最后检查笔记对象中是否包含小部件类型属性，如果是则获取该属性的值，否则将无效的小部件类型作为小部件类型。如果笔记对象是新创建的或小部件类型与之前不同，则将其放入待更新的笔记属性集合中。最后将小部件类型赋值给实例变量mWidgetType。*/
+ long originParent = note.has(NoteColumns.ORIGIN_PARENT_ID) ? note
+ .getLong(NoteColumns.ORIGIN_PARENT_ID) : 0;
+ if (mIsCreate || mOriginParent != originParent) {
+ mDiffNoteValues.put(NoteColumns.ORIGIN_PARENT_ID, originParent);
+ }
+ mOriginParent = originParent;
+ /*首先检查笔记对象中是否包含原始父笔记ID属性，如果是则获取该属性的值，否则将0作为原始父笔记ID
+ 如果笔记对象是新创建的或原始父笔记ID与之前不同，则将其放入待更新的笔记属性集合中。
+ 最后将原始父笔记ID赋值给实例变量mOriginParent。*/
+ for (int i = 0; i < dataArray.length(); i++) {
+ JSONObject data = dataArray.getJSONObject(i);
+ SqlData sqlData = null;
+ if (data.has(DataColumns.ID)) {
+ long dataId = data.getLong(DataColumns.ID);
+ for (SqlData temp : mDataList) {
+ if (dataId == temp.getId()) {
+ sqlData = temp;
+ }
+ }
+ }
+ /*首先，使用for循环遍历数据数组中的每个JSON对象。
+ 然后，检查JSON对象是否具有ID属性。如果有，将其与数据列表中的每个SqlData对象进行比较，以查找具有相同ID的SqlData对象。如果找到了匹配的SqlData对象，则将其赋值给sqlData变量。
+ 如果未找到匹配项，则sqlData变量将保持为null。*/
+ if (sqlData == null) {
+ sqlData = new SqlData(mContext);
+ mDataList.add(sqlData);
+ }
+ /*如果在数据列表中未找到具有与JSON对象相同ID的SqlData对象，则创建一个新的SqlData对象，并将其添加到数据列表中。
+ 如果找到了匹配的SqlData对象，则sqlData变量已经被赋值为该对象，不需要进行其他处理。*/
+ sqlData.setContent(data);
+ }
+ }
+ } catch (JSONException e) {
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ return false;
+ }
+ return true;
+ }
+/*如果找到了具有与JSON对象相同ID的SqlData对象，则调用该对象的setContent方法，并将JSON对象作为参数传递给该方法。该方法将使用JSON对象更新SqlData对象的属性值。如果未找到匹配的SqlData对象，则不需要进行任何处理。
+最后，try-catch语句用于捕获可能的JSONException异常，并在发生异常时打印错误信息。
+如果没有发生异常，则返回值为true。*/
+ public JSONObject getContent() {
+ try {
+ JSONObject js = new JSONObject();
+
+ if (mIsCreate) {
+ Log.e(TAG, "it seems that we haven't created this in database yet");
+ return null;
+ }
+/*首先创建一个新的JSONObject对象。然后检查mIsCreate属性的值。
+如果为true，则表示该SqlData对象尚未被创建到数据库中，此时将打印一个错误信息，并返回null。
+否则，将使用put方法将SqlData对象的属性值逐个添加到JSONObject对象中。
+最后，返回包含SqlData对象属性值的JSONObject对象。*/
+ JSONObject note = new JSONObject();
+ if (mType == Notes.TYPE_NOTE) {
+ note.put(NoteColumns.ID, mId);
+ note.put(NoteColumns.ALERTED_DATE, mAlertDate);
+ note.put(NoteColumns.BG_COLOR_ID, mBgColorId);
+ note.put(NoteColumns.CREATED_DATE, mCreatedDate);
+ note.put(NoteColumns.HAS_ATTACHMENT, mHasAttachment);
+ note.put(NoteColumns.MODIFIED_DATE, mModifiedDate);
+ note.put(NoteColumns.PARENT_ID, mParentId);
+ note.put(NoteColumns.SNIPPET, mSnippet);
+ note.put(NoteColumns.TYPE, mType);
+ note.put(NoteColumns.WIDGET_ID, mWidgetId);
+ note.put(NoteColumns.WIDGET_TYPE, mWidgetType);
+ note.put(NoteColumns.ORIGIN_PARENT_ID, mOriginParent);
+ js.put(GTaskStringUtils.META_HEAD_NOTE, note);
+
+ JSONArray dataArray = new JSONArray();
+ for (SqlData sqlData : mDataList) {
+ JSONObject data = sqlData.getContent();
+ if (data != null) {
+ dataArray.put(data);
+ }
+ }
+ js.put(GTaskStringUtils.META_HEAD_DATA, dataArray);
+ }
+ /*首先创建一个新的JSONObject对象note，并使用put方法将SqlData对象的属性值逐个添加到该对象中。然后，将note对象添加到新创建的JSONObject对象js中，并使用put方法将其作为GTaskStringUtils.META_HEAD_NOTE键的值。
+ 接下来，创建一个新的JSONArray对象dataArray，并使用for循环遍历mDataList列表中的每个SqlData对象。对于每个SqlData对象，调用其getContent方法获取一个JSON对象，并检查该对象是否为null。如果不为null，则将其添加到dataArray数组中。
+ 最后，将dataArray数组添加到js对象中，并使用put方法将其作为GTaskStringUtils.META_HEAD_DATA键的值。如果mType属性不等于Notes.TYPE_NOTE，则不会将任何数据添加到js对象中。*/
+ else if (mType == Notes.TYPE_FOLDER || mType == Notes.TYPE_SYSTEM) {
+ note.put(NoteColumns.ID, mId);
+ note.put(NoteColumns.TYPE, mType);
+ note.put(NoteColumns.SNIPPET, mSnippet);
+ js.put(GTaskStringUtils.META_HEAD_NOTE, note);
+ }
+
+ return js;
+ } catch (JSONException e) {
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ }
+ return null;
+ }
+ /*如果mType属性等于Notes.TYPE_FOLDER或Notes.TYPE_SYSTEM，则创建一个新的JSONObject对象note，并使用put方法将SqlData对象的属性值逐个添加到该对象中。然后，将note对象添加到新创建的JSONObject对象js中，并使用put方法将其作为GTaskStringUtils.META_HEAD_NOTE键的值。
+ 如果发生JSONException异常，则在控制台中打印错误信息，并返回null。如果没有发生异常，则返回包含SqlData对象属性值的JSONObject对象。js
+ 总的来说，这段代码的作用是将SqlData对象的属性值转换为JSON格式，并将其添加到新创建的JSONObject对象中。*/
+ public void setParentId(long id) {
+ mParentId = id;
+ mDiffNoteValues.put(NoteColumns.PARENT_ID, id);
+ }
+
+ public void setGtaskId(String gid) {
+ mDiffNoteValues.put(NoteColumns.GTASK_ID, gid);
+ }
+
+ public void setSyncId(long syncId) {
+ mDiffNoteValues.put(NoteColumns.SYNC_ID, syncId);
+ }
+
+ public void resetLocalModified() {
+ mDiffNoteValues.put(NoteColumns.LOCAL_MODIFIED, 0);
+ }
+
+ public long getId() {
+ return mId;
+ }
+
+ public long getParentId() {
+ return mParentId;
+ }
+
+ public String getSnippet() {
+ return mSnippet;
+ }
+
+ public boolean isNoteType() {
+ return mType == Notes.TYPE_NOTE;
+ }
+ /*setParentId(long id): 将id参数值赋给mParentId属性，并使用put方法将NoteColumns.PARENT_ID和id添加到mDiffNoteValues对象中。
+ setGtaskId(String gid): 使用put方法将NoteColumns.GTASK_ID和gid添加到mDiffNoteValues对象中。
+ setSyncId(long syncId): 使用put方法将NoteColumns.SYNC_ID和syncId添加到mDiffNoteValues对象中。
+ resetLocalModified(): 使用put方法将和0添加到NoteColumns.LOCAL_MODIFIEDmDiffNoteValues对象中。该方法用于重置SqlData对象的本地修改标志。
+ getId(): 返回mId属性的值。
+ getParentId(): 返回mParentId属性的值。
+ getSnippet(): 返回mSnippet属性的值。
+ isNoteType(): 如果mType属性等于，则返回Notes.TYPE_NOTEtrue，否则返回false。该方法用于判断该SqlData对象是否是一个笔记类型的对象。*/
+ public void commit(boolean validateVersion) {
+ if (mIsCreate) {
+ if (mId == INVALID_ID && mDiffNoteValues.containsKey(NoteColumns.ID)) {
+ mDiffNoteValues.remove(NoteColumns.ID);
+ }
+
+ Uri uri = mContentResolver.insert(Notes.CONTENT_NOTE_URI, mDiffNoteValues);
+ try {
+ mId = Long.valueOf(uri.getPathSegments().get(1));
+ } catch (NumberFormatException e) {
+ Log.e(TAG, "Get note id error :" + e.toString());
+ throw new ActionFailureException("create note failed");
+ }
+ if (mId == 0) {
+ throw new IllegalStateException("Create thread id failed");
+ }
+
+ if (mType == Notes.TYPE_NOTE) {
+ for (SqlData sqlData : mDataList) {
+ sqlData.commit(mId, false, -1);
+ }
+ }
+ }
+ /*如果mIsCreate属性为true，则表示该SqlData对象是新创建的，需要将其写入数据库。如果mId属性的值等于INVALID_ID（即-1）并且mDiffNoteValues对象中包含NoteColumns.ID键，那么将该键从mDiffNoteValues对象中移除。然后，使用insert方法将mDiffNoteValues对象中的属性值添加到Notes.CONTENT_NOTE_URI中，并将返回的Uri对象赋给uri变量。
+ 接下来，使用getPathSegments方法获取uri对象中的路径段，并将第二个路径段（即路径中的第二个元素）转换为long类型，并将其赋给mId属性。如果在转换过程中发生NumberFormatException异常，则在控制台中打印错误信息并抛出ActionFailureException异常。如果mId属性的值等于0，则抛出IllegalStateException异常。
+ 如果属性等于，则表示该mTypeNotes.TYPE_NOTESqlData对象是一个笔记类型的对象，并且它包含一个mDataList列表，该列表中包含其他SqlData对象。在这种情况下，需要递归调用每个SqlData对象的commit方法，并将mId的值作为参数传递给该方法，以便将这些子对象插入到数据库中。*/
+ else {
+ if (mId <= 0 && mId != Notes.ID_ROOT_FOLDER && mId != Notes.ID_CALL_RECORD_FOLDER) {
+ Log.e(TAG, "No such note");
+ throw new IllegalStateException("Try to update note with invalid id");
+ }
+ if (mDiffNoteValues.size() > 0) {
+ mVersion ++;
+ int result = 0;
+ if (!validateVersion) {
+ result = mContentResolver.update(Notes.CONTENT_NOTE_URI, mDiffNoteValues, "("
+ + NoteColumns.ID + "=?)", new String[] {
+ String.valueOf(mId)
+ });
+ } else {
+ result = mContentResolver.update(Notes.CONTENT_NOTE_URI, mDiffNoteValues, "("
+ + NoteColumns.ID + "=?) AND (" + NoteColumns.VERSION + "<=?)",
+ new String[] {
+ String.valueOf(mId), String.valueOf(mVersion)
+ });
+ }
+ if (result == 0) {
+ Log.w(TAG, "there is no update. maybe user updates note when syncing");
+ }
+ }
+
+ if (mType == Notes.TYPE_NOTE) {
+ for (SqlData sqlData : mDataList) {
+ sqlData.commit(mId, validateVersion, mVersion);
+ }
+ }
+ }
+
+ // refresh local info
+ loadFromCursor(mId);
+ if (mType == Notes.TYPE_NOTE)
+ loadDataContent();
+
+ mDiffNoteValues.clear();
+ mIsCreate = false;
+ }
+}
+/*如果mIsCreate属性为false，则表示该SqlData对象是已存在于数据库中的对象，需要更新其属性值。首先，需要检查mId属性的值是否为有效值。如果mId属性的值小于等于0且不等于Notes.ID_ROOT_FOLDER和Notes.ID_CALL_RECORD_FOLDER，则表示该笔记不存在，会打印错误信息并抛出IllegalStateException异常。然后，检查mDiffNoteValues对象是否包含要更新的属性值，如果包含，则需要更新笔记的版本号mVersion，并使用update方法将更改后的属性值写入数据库中。
+如果参数为validateVersiontrue，则表示需要验证版本号。在这种情况下，会将笔记的版本号mVersion作为参数传递给update方法，并在WHERE子句中添加一个条件，以确保要更新的笔记版本号小于等于当前版本号。如果validateVersion参数为false，则不需要验证版本号。
+如果更新操作成功，则方法会返回受影响的行数。如果返回值为0，则表示更新操作没有修改任何行，会在控制台中打印警告信息。update
+如果mType属性等于Notes.TYPE_NOTE，则表示该SqlData对象是一个笔记类型的对象，并且它包含一个mDataList列表，该列表中包含其他SqlData对象。在这种情况下，需要递归调用每个SqlData对象的commit方法，并将mId和validateVersion的值作为参数传递给该方法。
+最后，刷新本地信息，清空mDiffNoteValues对象中的属性值，将mIsCreate属性设置为false，并完成方法的执行。*/
\ No newline at end of file
diff --git a/app/src/main/java/net/micode/notes/gtask/data/Task.java b/app/src/main/java/net/micode/notes/gtask/data/Task.java
new file mode 100644
index 0000000..71cff3f
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/gtask/data/Task.java
@@ -0,0 +1,404 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.gtask.data;
+
+import android.database.Cursor;
+import android.text.TextUtils;
+import android.util.Log;
+
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.DataConstants;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.gtask.exception.ActionFailureException;
+import net.micode.notes.tool.GTaskStringUtils;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+
+public class Task extends Node {
+ private static final String TAG = Task.class.getSimpleName();
+
+ private boolean mCompleted;
+
+ private String mNotes;
+
+ private JSONObject mMetaInfo;
+
+ private Task mPriorSibling;
+
+ private TaskList mParent;
+
+ public Task() {
+ super();
+ mCompleted = false;
+ mNotes = null;
+ mPriorSibling = null;
+ mParent = null;
+ mMetaInfo = null;
+ }
+/*这是一个名为Task的Java类，它继承自Node类。Task类有以下成员变量：
+mCompleted：表示任务是否已完成，类型为布尔值。
+mNotes：表示任务的笔记，类型为字符串。
+mMetaInfo：表示任务的元信息，类型为JSONObject对象。
+mPriorSibling：表示前一个同级任务，类型为Task对象。
+mParent：表示任务所属的任务列表，类型为TaskList对象。
+Task类还有一个无参数构造函数，它会将mCompleted、mNotes、、mPriorSiblingmParent和mMetaInfo都初始化为null或false。
+继承自Node类的成员变量和方法没有在这个代码片段中给出，但是可以推测出Node类是一个表示树节点的基类，TaskList类是一个表示任务列表的类。在Task类中，mPriorSibling和mParent成员变量用于表示任务在任务列表中的位置，mMetaInfo成员变量用于存储一些其他的任务信息。*/
+ public JSONObject getCreateAction(int actionId) {
+ JSONObject js = new JSONObject();
+/*该方法返回一个JSONObject对象，用于表示创建一个动作的操作。
+该方法有一个整数类型的参数actionId，用于指定要创建的动作的ID。
+方法主体中，首先创建一个空的JSONObject对象js。
+然后，会往该对象中添加一个表示要执行的操作类型的键值对，该键值对的键为"type"，值为"action"。
+接着，会添加一个表示要创建的动作ID的键值对，该键值对的键为"action_id"，值为actionId参数的值。
+最后，将js对象返回。*/
+ try {
+ // action_type
+ js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
+ GTaskStringUtils.GTASK_JSON_ACTION_TYPE_CREATE);
+
+ // action_id
+ js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId);
+
+ // index
+ js.put(GTaskStringUtils.GTASK_JSON_INDEX, mParent.getChildTaskIndex(this));
+
+ // entity_delta
+ JSONObject entity = new JSONObject();
+ entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName());
+ entity.put(GTaskStringUtils.GTASK_JSON_CREATOR_ID, "null");
+ entity.put(GTaskStringUtils.GTASK_JSON_ENTITY_TYPE,
+ GTaskStringUtils.GTASK_JSON_TYPE_TASK);
+ /*在上述代码中，getCreateAction方法中的JSONObject js对象被初始化之后，首先向其中添加一个表示操作类型的键值对，该键值对的键为GTaskStringUtils.GTASK_JSON_ACTION_TYPE，值为GTaskStringUtils.GTASK_JSON_ACTION_TYPE_CREATE。
+ 接着，会添加一个表示要创建的动作ID的键值对，该键值对的键为GTaskStringUtils.GTASK_JSON_ACTION_ID，值为actionId参数的值。
+ 然后，会添加一个表示任务在任务列表中的位置的键值对，该键值对的键为GTaskStringUtils.GTASK_JSON_INDEX，值为当前任务在其父任务列表中的位置，通过调用mParent.getChildTaskIndex(this)方法获得。
+ 最后，会添加一个表示任务实体的键值对，该键值对的键为"entity_delta"，值为一个新的JSONObject对象entity。entity对象中包含三个键值对，分别为任务名称、创建者ID和任务类型。
+ 其中，任务名称通过getName()方法获取，创建者ID为"null"，任务类型为GTaskStringUtils.GTASK_JSON_TYPE_TASK。
+ 最终，js对象中包含了所有要创建动作所需的信息，并将其返回。*/
+ if (getNotes() != null) {
+ entity.put(GTaskStringUtils.GTASK_JSON_NOTES, getNotes());
+ }
+ js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity);
+
+ // parent_id
+ js.put(GTaskStringUtils.GTASK_JSON_PARENT_ID, mParent.getGid());
+
+ // dest_parent_type
+ js.put(GTaskStringUtils.GTASK_JSON_DEST_PARENT_TYPE,
+ GTaskStringUtils.GTASK_JSON_TYPE_GROUP);
+
+ // list_id
+ js.put(GTaskStringUtils.GTASK_JSON_LIST_ID, mParent.getGid());
+ /*在上述代码中，如果当前任务存在笔记，则会向entity对象中添加一个表示笔记内容的键值对，该键值对的键为GTaskStringUtils.GTASK_JSON_NOTES，值为当前任务的笔记内容，通过调用getNotes()方法获取。然后，将entity对象添加为js对象的一个子对象，键为GTaskStringUtils.GTASK_JSON_ENTITY_DELTA。
+ 接着，会添加一个表示当前任务所属的任务列表ID的键值对，该键值对的键为GTaskStringUtils.GTASK_JSON_PARENT_ID，值为当前任务所属任务列表的GID，通过调用mParent.getGid()方法获取。
+ 然后，会添加一个表示当前任务所属的任务列表类型的键值对，该键值对的键为GTaskStringUtils.GTASK_JSON_DEST_PARENT_TYPE，值为GTaskStringUtils.GTASK_JSON_TYPE_GROUP，表示当前任务所属的任务列表是一个组。
+ 最后，会添加一个表示当前任务所属的任务列表ID的键值对，该键值对的键为GTaskStringUtils.GTASK_JSON_LIST_ID，值为当前任务所属任务列表的GID。
+ 最终，js对象中包含了所有创建动作所需的信息，并将其返回。*/
+ // prior_sibling_id
+ if (mPriorSibling != null) {
+ js.put(GTaskStringUtils.GTASK_JSON_PRIOR_SIBLING_ID, mPriorSibling.getGid());
+ }
+
+ } catch (JSONException e) {
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ throw new ActionFailureException("fail to generate task-create jsonobject");
+ }
+
+ return js;
+ }/*添加一个表示当前任务的前一个兄弟任务ID的键值对。
+ 如果当前任务的前一个兄弟任务不为空，则会向 js 对象中添加一个表示前一个兄弟任务ID的键值对，该键值对的键为 GTaskStringUtils.GTASK_JSON_PRIOR_SIBLING_ID，值为前一个兄弟任务的 GID，通过调用 mPriorSibling.getGid() 方法获取。
+ 这个键值对表示当前任务是前一个兄弟任务的下一个兄弟任务，也就是将当前任务插入到前一个兄弟任务后面。如果添加键值对时出现 JSONException 异常，则会打印异常信息，并抛出 ActionFailureException 异常。
+ 最后，返回表示创建任务的动作的 JSONObject 对象。*/
+
+ public JSONObject getUpdateAction(int actionId) {
+ JSONObject js = new JSONObject();
+
+ try {
+ // 将 action_type 字段设置为 GTaskStringUtils.GTASK_JSON_ACTION_TYPE_UPDATE
+ js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
+ GTaskStringUtils.GTASK_JSON_ACTION_TYPE_UPDATE);
+
+ // 将 action_id 字段设置为传入的 actionId 参数
+ js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId);
+
+ // 将 id 字段设置为当前任务的 GID
+ js.put(GTaskStringUtils.GTASK_JSON_ID, getGid());
+
+ // 将 entity_delta 字段设置为一个 JSONObject 对象，
+ // 该对象表示要更新的任务的属性和值
+ JSONObject entity = new JSONObject();
+ entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName()); // 任务名称
+ if (getNotes() != null) { // 如果任务的注释不为空，则添加注释字段
+ entity.put(GTaskStringUtils.GTASK_JSON_NOTES, getNotes());
+ }
+ entity.put(GTaskStringUtils.GTASK_JSON_DELETED, getDeleted()); // 任务是否被删除
+ js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity);
+
+ } catch (JSONException e) {
+ // 如果出现 JSONException 异常，则打印异常信息，并抛出 ActionFailureException 异常
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ throw new ActionFailureException("fail to generate task-update jsonobject");
+ }
+
+ // 返回表示更新任务的动作的 JSONObject 对象
+ return js;
+ }
+
+ public void setContentByRemoteJSON(JSONObject js) {
+ if (js != null) {
+ try {
+ // 解析 id 字段，将其设置为本地任务对象的 GID
+ if (js.has(GTaskStringUtils.GTASK_JSON_ID)) {
+ setGid(js.getString(GTaskStringUtils.GTASK_JSON_ID));
+ }
+
+ // 解析 last_modified 字段，将其设置为本地任务对象的最后修改时间
+ if (js.has(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)) {
+ setLastModified(js.getLong(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED));
+ }
+
+ // 解析 name 字段，将其设置为本地任务对象的名称
+ if (js.has(GTaskStringUtils.GTASK_JSON_NAME)) {
+ setName(js.getString(GTaskStringUtils.GTASK_JSON_NAME));
+ }
+
+ // 解析 notes 字段，将其设置为本地任务对象的注释
+ if (js.has(GTaskStringUtils.GTASK_JSON_NOTES)) {
+ setNotes(js.getString(GTaskStringUtils.GTASK_JSON_NOTES));
+ }
+
+ // 解析 deleted 字段，将其设置为本地任务对象的删除状态
+ if (js.has(GTaskStringUtils.GTASK_JSON_DELETED)) {
+ setDeleted(js.getBoolean(GTaskStringUtils.GTASK_JSON_DELETED));
+ }
+
+ // 解析 completed 字段，将其设置为本地任务对象的完成状态
+ if (js.has(GTaskStringUtils.GTASK_JSON_COMPLETED)) {
+ setCompleted(js.getBoolean(GTaskStringUtils.GTASK_JSON_COMPLETED));
+ }
+ } catch (JSONException e) {
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ throw new ActionFailureException("fail to get task content from jsonobject");
+ }
+ }
+ }
+
+ public void setContentByLocalJSON(JSONObject js) {
+ if (js == null || !js.has(GTaskStringUtils.META_HEAD_NOTE)
+ || !js.has(GTaskStringUtils.META_HEAD_DATA)) {
+ Log.w(TAG, "setContentByLocalJSON: nothing is avaiable");
+ }
+
+ try {
+ // 解析任务的注释信息
+ JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
+
+ // 解析任务的数据信息
+ JSONArray dataArray = js.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
+
+ // 检查任务的类型是否为 Notes.TYPE_NOTE
+ if (note.getInt(NoteColumns.TYPE) != Notes.TYPE_NOTE) {
+ Log.e(TAG, "invalid type");
+ return;
+ }
+
+ // 解析任务的名称
+ for (int i = 0; i < dataArray.length(); i++) {
+ JSONObject data = dataArray.getJSONObject(i);
+ if (TextUtils.equals(data.getString(DataColumns.MIME_TYPE), DataConstants.NOTE)) {
+ setName(data.getString(DataColumns.CONTENT));
+ break;
+ }
+ }
+
+ } catch (JSONException e) {
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ }
+ }
+
+ public JSONObject getLocalJSONFromContent() {
+ String name = getName();
+
+ try {
+ if (mMetaInfo == null) {
+ // 如果当前任务对象没有元信息，则表示该任务是从 Web 创建的
+ if (name == null) {
+ Log.w(TAG, "the note seems to be an empty one");
+ return null;
+ }
+
+ // 创建一个新的 JSONObject，并将任务的名称添加到其中
+ JSONObject js = new JSONObject();
+ JSONObject note = new JSONObject();
+ JSONArray dataArray = new JSONArray();
+ JSONObject data = new JSONObject();
+ data.put(DataColumns.CONTENT, name);
+ dataArray.put(data);
+ js.put(GTaskStringUtils.META_HEAD_DATA, dataArray);
+ note.put(NoteColumns.TYPE, Notes.TYPE_NOTE);
+ js.put(GTaskStringUtils.META_HEAD_NOTE, note);
+ return js;
+ } else {
+ // 如果当前任务对象有元信息，则表示该任务是同步过来的
+ JSONObject note = mMetaInfo.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
+ JSONArray dataArray = mMetaInfo.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
+
+ // 遍历任务的数据信息，找到 MIME_TYPE 为 DataConstants.NOTE 的 JSONObject，并将其 CONTENT 字段设置为任务的名称
+ for (int i = 0; i < dataArray.length(); i++) {
+ JSONObject data = dataArray.getJSONObject(i);
+ if (TextUtils.equals(data.getString(DataColumns.MIME_TYPE), DataConstants.NOTE)) {
+ data.put(DataColumns.CONTENT, getName());
+ break;
+ }
+ }
+
+ // 将任务的类型设置为 Notes.TYPE_NOTE，并返回元信息对象
+ note.put(NoteColumns.TYPE, Notes.TYPE_NOTE);
+ return mMetaInfo;
+ }
+ } catch (JSONException e) {
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ return null;
+ }
+ }
+
+
+ public void setMetaInfo(MetaData metaData) {
+ if (metaData != null && metaData.getNotes() != null) {
+ try {
+ // 将元数据对象的 notes 字段转换为 JSONObject 对象，并存储在当前对象的 mMetaInfo 变量中
+ mMetaInfo = new JSONObject(metaData.getNotes());
+ } catch (JSONException e) {
+ Log.w(TAG, e.toString());
+ mMetaInfo = null;
+ }
+ }
+ }
+
+ public int getSyncAction(Cursor c) {
+ try {
+ JSONObject noteInfo = null;
+ // 从 mMetaInfo 变量中获取笔记的元数据信息
+ if (mMetaInfo != null && mMetaInfo.has(GTaskStringUtils.META_HEAD_NOTE)) {
+ noteInfo = mMetaInfo.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
+ }
+
+ if (noteInfo == null) {
+ // 如果笔记的元数据信息不存在，则需要更新远程数据
+ Log.w(TAG, "it seems that note meta has been deleted");
+ return SYNC_ACTION_UPDATE_REMOTE;
+ }
+
+ if (!noteInfo.has(NoteColumns.ID)) {
+ // 如果笔记的元数据信息中没有 ID 字段，则需要更新本地数据
+ Log.w(TAG, "remote note id seems to be deleted");
+ return SYNC_ACTION_UPDATE_LOCAL;
+ }
+
+ // 检查笔记的 ID 是否匹配
+ if (c.getLong(SqlNote.ID_COLUMN) != noteInfo.getLong(NoteColumns.ID)) {
+ Log.w(TAG, "note id doesn't match");
+ return SYNC_ACTION_UPDATE_LOCAL;
+ }
+
+ if (c.getInt(SqlNote.LOCAL_MODIFIED_COLUMN) == 0) {
+ // 如果本地没有修改笔记，则比较修改时间来判断是否需要更新数据
+ if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) {
+ // 本地和远程都没有修改，无需同步
+ return SYNC_ACTION_NONE;
+ } else {
+ // 将远程数据应用到本地
+ return SYNC_ACTION_UPDATE_LOCAL;
+ }
+ } else {
+ // 如果本地有修改笔记，则需要比较修改时间和 GTask ID 来判断同步操作
+ if (!c.getString(SqlNote.GTASK_ID_COLUMN).equals(getGid())) {
+ Log.e(TAG, "gtask id doesn't match");
+ return SYNC_ACTION_ERROR;
+ }
+ if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) {
+ // 只有本地有修改，将本地数据更新到远程
+ return SYNC_ACTION_UPDATE_REMOTE;
+ } else {
+ // 本地和远程都有修改，需要解决冲突
+ return SYNC_ACTION_UPDATE_CONFLICT;
+ }
+ }
+ } catch (Exception e) {
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ }
+
+ return SYNC_ACTION_ERROR;
+ }
+
+ public boolean isWorthSaving() {
+ // 判断对象是否值得保存
+ return mMetaInfo != null // 如果 mMetaInfo 不为空
+ || (getName() != null && getName().trim().length() > 0) // 或者 name 不为空且去除空格后长度大于 0
+ || (getNotes() != null && getNotes().trim().length() > 0); // 或者 notes 不为空且去除空格后长度大于 0
+ }
+
+ public void setCompleted(boolean completed) {
+ // 设置对象的 mCompleted 变量为给定的布尔值
+ this.mCompleted = completed;
+ }
+
+ public void setNotes(String notes) {
+ // 设置对象的 mNotes 变量为给定的字符串
+ this.mNotes = notes;
+ }
+
+ public void setPriorSibling(Task priorSibling) {
+ // 设置对象的 mPriorSibling 变量为给定的 Task 对象
+ this.mPriorSibling = priorSibling;
+ }
+
+ public void setParent(TaskList parent) {
+ // 设置对象的 mParent 变量为给定的 TaskList 对象
+ this.mParent = parent;
+ }
+
+ public boolean getCompleted() {
+ // 返回对象的 mCompleted 变量
+ return this.mCompleted;
+ }
+
+ public String getNotes() {
+ // 返回对象的 mNotes 变量
+ return this.mNotes;
+ }
+
+ public Task getPriorSibling() {
+ // 返回对象的 mPriorSibling 变量，其中 mPriorSibling 是一个 Task 对象
+ return this.mPriorSibling;
+ }
+
+ public TaskList getParent() {
+ // 返回对象的 mParent 变量，其中 mParent 是一个 TaskList 对象
+ return this.mParent;
+ }
+
+}
diff --git a/app/src/main/java/net/micode/notes/gtask/data/TaskList.java b/app/src/main/java/net/micode/notes/gtask/data/TaskList.java
new file mode 100644
index 0000000..579f8f8
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/gtask/data/TaskList.java
@@ -0,0 +1,350 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.gtask.data;
+
+import android.database.Cursor;
+import android.util.Log;
+
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.gtask.exception.ActionFailureException;
+import net.micode.notes.tool.GTaskStringUtils;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.util.ArrayList;
+
+
+public class TaskList extends Node {
+ // 定义一个 TaskList 类，继承自 Node 类
+
+ private static final String TAG = TaskList.class.getSimpleName();
+ // 定义一个 TAG 常量，类型为字符串，值为 TaskList 类的简单名称
+
+ private int mIndex;
+ // 定义一个整型变量 mIndex，用于存储任务列表的索引值
+
+ private ArrayList mChildren;
+ // 定义一个 ArrayList 类型的 mChildren 变量，用于存储该任务列表的子任务列表
+
+ public TaskList() {
+ // 默认构造方法
+
+ super();
+ // 调用父类的默认构造方法
+
+ mChildren = new ArrayList();
+ // 初始化 mChildren 变量为一个新的空的 ArrayList
+
+ mIndex = 1;
+ // 初始化 mIndex 变量为 1
+ }
+
+ public JSONObject getCreateAction(int actionId) {
+ JSONObject js = new JSONObject(); // 创建一个新的 JSONObject 对象
+
+ try {
+ // action_type
+ js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
+ GTaskStringUtils.GTASK_JSON_ACTION_TYPE_CREATE); // 添加 action_type 键值对，值为 "create"
+
+ // action_id
+ js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId); // 添加 action_id 键值对，值为传入的参数 actionId
+
+ // index
+ js.put(GTaskStringUtils.GTASK_JSON_INDEX, mIndex); // 添加 index 键值对，值为成员变量 mIndex 的值
+
+ // entity_delta
+ JSONObject entity = new JSONObject(); // 创建一个新的 JSONObject 对象，用于表示实体的 delta
+ entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName()); // 添加 name 键值对，值为 getName() 方法的返回值
+ entity.put(GTaskStringUtils.GTASK_JSON_CREATOR_ID, "null"); // 添加 creator_id 键值对，值为 "null"
+ entity.put(GTaskStringUtils.GTASK_JSON_ENTITY_TYPE,
+ GTaskStringUtils.GTASK_JSON_TYPE_GROUP); // 添加 entity_type 键值对，值为 "GROUP"
+ js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity); // 添加 entity_delta 键值对，值为上面创建的 entity 对象
+
+ } catch (JSONException e) { // 如果在添加键值对的过程中出现 JSONException 异常
+ Log.e(TAG, e.toString()); // 打印异常堆栈跟踪信息
+ e.printStackTrace();
+ throw new ActionFailureException("fail to generate tasklist-create jsonobject"); // 抛出一个自定义异常 ActionFailureException，并传递一个异常信息字符串
+ }
+
+ return js; // 返回创建的 JSONObject 对象
+ }
+
+ public JSONObject getUpdateAction(int actionId) {
+ JSONObject js = new JSONObject(); // 创建一个新的 JSONObject 对象
+
+ try {
+ // action_type
+ js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
+ GTaskStringUtils.GTASK_JSON_ACTION_TYPE_UPDATE); // 添加 action_type 键值对，值为 "update"
+
+ // action_id
+ js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId); // 添加 action_id 键值对，值为传入的参数 actionId
+
+ // id
+ js.put(GTaskStringUtils.GTASK_JSON_ID, getGid()); // 添加 id 键值对，值为调用 getGid() 方法的返回值，表示任务列表的全局唯一标识符
+
+ // entity_delta
+ JSONObject entity = new JSONObject(); // 创建一个新的 JSONObject 对象，用于表示实体的 delta
+ entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName()); // 添加 name 键值对，值为 getName() 方法的返回值，表示任务列表的名称
+ entity.put(GTaskStringUtils.GTASK_JSON_DELETED, getDeleted()); // 添加 deleted 键值对，值为 getDeleted() 方法的返回值，表示任务列表是否被删除
+ js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity); // 添加 entity_delta 键值对，值为上面创建的 entity 对象
+
+ } catch (JSONException e) { // 如果在添加键值对的过程中出现 JSONException 异常
+ Log.e(TAG, e.toString()); // 打印异常堆栈跟踪信息
+ e.printStackTrace();
+ throw new ActionFailureException("fail to generate tasklist-update jsonobject"); // 抛出一个自定义异常 ActionFailureException，并传递一个异常信息字符串
+ }
+
+ return js; // 返回创建的 JSONObject 对象
+ }
+
+ public void setContentByRemoteJSON(JSONObject js) {
+ if (js != null) { // 如果传入的 JSONObject 对象不为 null
+ try {
+ // id
+ if (js.has(GTaskStringUtils.GTASK_JSON_ID)) { // 如果 JSONObject 对象中包含 id 键值对
+ setGid(js.getString(GTaskStringUtils.GTASK_JSON_ID)); // 将 id 键对应的值作为参数调用 setGid() 方法，将任务列表的全局唯一标识符设置为该值
+ }
+
+ // last_modified
+ if (js.has(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)) { // 如果 JSONObject 对象中包含 last_modified 键值对
+ setLastModified(js.getLong(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)); // 将 last_modified 键对应的值作为参数调用 setLastModified() 方法，将任务列表的最后修改时间设置为该值
+ }
+
+ // name
+ if (js.has(GTaskStringUtils.GTASK_JSON_NAME)) { // 如果 JSONObject 对象中包含 name 键值对
+ setName(js.getString(GTaskStringUtils.GTASK_JSON_NAME)); // 将 name 键对应的值作为参数调用 setName() 方法，将任务列表的名称设置为该值
+ }
+
+ } catch (JSONException e) { // 如果在读取键值对的过程中出现 JSONException 异常
+ Log.e(TAG, e.toString()); // 打印异常堆栈跟踪信息
+ e.printStackTrace();
+ throw new ActionFailureException("fail to get tasklist content from jsonobject"); // 抛出一个自定义异常 ActionFailureException，并传递一个异常信息字符串
+ }
+ }
+ }
+
+ public void setContentByLocalJSON(JSONObject js) {
+ if (js == null || !js.has(GTaskStringUtils.META_HEAD_NOTE)) { // 如果传入的 JSONObject 对象为 null，或者它不包含 META_HEAD_NOTE 键值对
+ Log.w(TAG, "setContentByLocalJSON: nothing is avaiable"); // 打印一条警告日志，表示没有可用的信息
+ }
+
+ try {
+ JSONObject folder = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE); // 获取 META_HEAD_NOTE 键对应的值，该值应该是一个 JSON 对象，表示笔记的元信息
+
+ if (folder.getInt(NoteColumns.TYPE) == Notes.TYPE_FOLDER) { // 如果元信息中的 TYPE 键对应的值为 TYPE_FOLDER，表示这是一个文件夹笔记
+ String name = folder.getString(NoteColumns.SNIPPET); // 获取元信息中的 SNIPPET 键对应的值，该值应该是文件夹的名称
+ setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX + name); // 将文件夹名称加上一个前缀字符串，作为任务列表的名称
+ } else if (folder.getInt(NoteColumns.TYPE) == Notes.TYPE_SYSTEM) { // 如果元信息中的 TYPE 键对应的值为 TYPE_SYSTEM，表示这是一个系统笔记
+ if (folder.getLong(NoteColumns.ID) == Notes.ID_ROOT_FOLDER) // 如果元信息中的 ID 键对应的值为 ID_ROOT_FOLDER，表示这是根文件夹笔记
+ setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_DEFAULT); // 将默认的任务列表名称设置为 MIUI_FOLDER_PREFFIX + FOLDER_DEFAULT
+ else if (folder.getLong(NoteColumns.ID) == Notes.ID_CALL_RECORD_FOLDER) // 如果元信息中的 ID 键对应的值为 ID_CALL_RECORD_FOLDER，表示这是一条来电记录笔记
+ setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_CALL_NOTE); // 将来电记录的任务列表名称设置为 MIUI_FOLDER_PREFFIX + FOLDER_CALL_NOTE
+ else
+ Log.e(TAG, "invalid system folder"); // 如果元信息中的 TYPE 和 ID 值都不符合要求，打印一条错误日志
+ } else {
+ Log.e(TAG, "error type"); // 如果元信息中的 TYPE 键对应的值既不是 TYPE_FOLDER，也不是 TYPE_SYSTEM，打印一条错误日志
+ }
+ } catch (JSONException e) { // 如果在读取元信息的过程中出现 JSONException 异常
+ Log.e(TAG, e.toString()); // 打印异常堆栈跟踪信息
+ e.printStackTrace();
+ }
+ }
+
+ public JSONObject getLocalJSONFromContent() {
+ try {
+ JSONObject js = new JSONObject(); // 创建一个新的 JSONObject 对象
+ JSONObject folder = new JSONObject(); // 创建一个新的 JSONObject 对象，表示笔记的元信息
+
+ String folderName = getName(); // 获取任务列表名称
+ if (getName().startsWith(GTaskStringUtils.MIUI_FOLDER_PREFFIX)) // 如果任务列表名称以 MIUI_FOLDER_PREFFIX 开头
+ folderName = folderName.substring(GTaskStringUtils.MIUI_FOLDER_PREFFIX.length(), folderName.length()); // 将 MIUI_FOLDER_PREFFIX 从任务列表名称中去掉
+ folder.put(NoteColumns.SNIPPET, folderName); // 将去掉 MIUI_FOLDER_PREFFIX 的任务列表名称存入元信息中的 SNIPPET 键
+
+ if (folderName.equals(GTaskStringUtils.FOLDER_DEFAULT) || folderName.equals(GTaskStringUtils.FOLDER_CALL_NOTE)) // 如果任务列表名称是默认任务列表或来电记录任务列表
+ folder.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); // 将元信息中的 TYPE 键设置为 TYPE_SYSTEM
+ else
+ folder.put(NoteColumns.TYPE, Notes.TYPE_FOLDER); // 否则将元信息中的 TYPE 键设置为 TYPE_FOLDER
+
+ js.put(GTaskStringUtils.META_HEAD_NOTE, folder); // 将元信息对象存入 js 对象中，以 META_HEAD_NOTE 键为键名
+
+ return js; // 返回创建好的 JSONObject 对象
+ } catch (JSONException e) { // 如果在创建 JSONObject 对象的过程中出现异常
+ Log.e(TAG, e.toString()); // 打印异常信息
+ e.printStackTrace();
+ return null; // 返回 null
+ }
+ }
+
+ public int getSyncAction(Cursor c) {
+ try {
+ if (c.getInt(SqlNote.LOCAL_MODIFIED_COLUMN) == 0) { // 如果本地没有更新
+ if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) { // 如果本地最后一次修改时间与云端最后一次修改时间相同
+ // 两边都没有更新
+ return SYNC_ACTION_NONE;
+ } else {
+ // 将云端的修改应用到本地
+ return SYNC_ACTION_UPDATE_LOCAL;
+ }
+ } else { // 如果本地有更新
+ // 验证 gtask id 是否匹配
+ if (!c.getString(SqlNote.GTASK_ID_COLUMN).equals(getGid())) {
+ Log.e(TAG, "gtask id doesn't match");
+ return SYNC_ACTION_ERROR;
+ }
+ if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) { // 如果本地最后一次修改时间与云端最后一次修改时间相同
+ // 只有本地修改
+ return SYNC_ACTION_UPDATE_REMOTE;
+ } else {
+ // 对于文件夹冲突，只应用本地修改
+ return SYNC_ACTION_UPDATE_REMOTE;
+ }
+ }
+ } catch (Exception e) {
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ }
+
+ return SYNC_ACTION_ERROR; // 如果在执行过程中出现异常，返回 SYNC_ACTION_ERROR
+ }
+
+ public int getChildTaskCount() {
+ return mChildren.size();
+ }//返回一个私有成员变量mChildren中存储的子任务数量
+
+ public boolean addChildTask(Task task) {
+ boolean ret = false;
+ if (task != null && !mChildren.contains(task)) { // 如果任务不为空且不包含在子任务列表中
+ ret = mChildren.add(task); // 添加任务到子任务列表中
+ if (ret) {
+ // 需要设置前一个兄弟和父任务
+ task.setPriorSibling(mChildren.isEmpty() ? null : mChildren.get(mChildren.size() - 1)); // 设置前一个兄弟，如果子任务列表为空，则前一个兄弟为 null
+ task.setParent(this); // 设置父任务为当前任务
+ }
+ }
+ return ret;
+ }
+
+ public boolean addChildTask(Task task, int index) {
+ if (index < 0 || index > mChildren.size()) { // 如果索引位置小于 0 或大于子任务列表的大小
+ Log.e(TAG, "add child task: invalid index"); // 打印错误日志
+ return false;
+ }
+
+ int pos = mChildren.indexOf(task); // 获取任务在子任务列表中的位置
+ if (task != null && pos == -1) { // 如果任务不为空且不在子任务列表中
+ mChildren.add(index, task); // 在指定索引位置添加任务
+
+ // 更新任务列表
+ Task preTask = null;
+ Task afterTask = null;
+ if (index != 0)
+ preTask = mChildren.get(index - 1);
+ if (index != mChildren.size() - 1)
+ afterTask = mChildren.get(index + 1);
+
+ task.setPriorSibling(preTask); // 设置前一个兄弟任务
+ if (afterTask != null)
+ afterTask.setPriorSibling(task); // 设置后一个兄弟任务的前一个兄弟任务为当前任务
+ }
+
+ return true;
+ }
+
+ public boolean removeChildTask(Task task) {
+ boolean ret = false;
+ int index = mChildren.indexOf(task); // 获取任务在子任务列表中的位置
+ if (index != -1) { // 如果任务在子任务列表中
+ ret = mChildren.remove(task); // 从子任务列表中移除任务
+
+ if (ret) {
+ // 重置前一个兄弟任务和父任务
+ task.setPriorSibling(null);
+ task.setParent(null);
+
+ // 更新任务列表
+ if (index != mChildren.size()) {
+ mChildren.get(index).setPriorSibling(
+ index == 0 ? null : mChildren.get(index - 1));
+ }
+ }
+ }
+ return ret;
+ }
+
+ public boolean moveChildTask(Task task, int index) {
+ if (index < 0 || index >= mChildren.size()) { // 如果索引位置小于 0 或大于等于子任务列表的大小
+ Log.e(TAG, "move child task: invalid index"); // 打印错误日志
+ return false;
+ }
+
+ int pos = mChildren.indexOf(task); // 获取任务在子任务列表中的位置
+ if (pos == -1) { // 如果任务不在子任务列表中
+ Log.e(TAG, "move child task: the task should in the list"); // 打印错误日志
+ return false;
+ }
+
+ if (pos == index)
+ return true;
+ return (removeChildTask(task) && addChildTask(task, index)); // 先将任务从原位置移除，再将其移动到新位置
+ }
+
+ public Task findChildTaskByGid(String gid) {
+ for (int i = 0; i < mChildren.size(); i++) { // 遍历子任务列表
+ Task t = mChildren.get(i);
+ if (t.getGid().equals(gid)) { // 如果找到了 GID 匹配的任务
+ return t; // 返回该任务
+ }
+ }
+ return null; // 如果没有找到匹配的任务，则返回 null
+ }
+
+ public int getChildTaskIndex(Task task) {
+ return mChildren.indexOf(task); // 获取指定任务在子任务列表中的位置
+ }
+
+ public Task getChildTaskByIndex(int index) {
+ if (index < 0 || index >= mChildren.size()) { // 如果索引位置小于 0 或大于等于子任务列表的大小
+ Log.e(TAG, "getTaskByIndex: invalid index"); // 打印错误日志
+ return null;
+ }
+ return mChildren.get(index); // 返回指定位置的任务
+ }
+
+ public Task getChilTaskByGid(String gid) {
+ for (Task task : mChildren) { // 遍历子任务列表中的所有任务
+ if (task.getGid().equals(gid)) // 如果找到了 GID 匹配的任务
+ return task; // 返回该任务
+ }
+ return null; // 如果没有找到匹配的任务，则返回 null
+ }
+
+ public ArrayList getChildTaskList() {
+ return this.mChildren; // 返回子任务列表
+ }
+
+ public void setIndex(int index) {
+ this.mIndex = index; // 设置任务列表的索引位置
+ }
+
+ public int getIndex() {
+ return this.mIndex; // 获取任务列表的索引位置
+ }
+}
diff --git a/app/src/main/java/net/micode/notes/gtask/exception/ActionFailureException.java b/app/src/main/java/net/micode/notes/gtask/exception/ActionFailureException.java
new file mode 100644
index 0000000..3579e44
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/gtask/exception/ActionFailureException.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.gtask.exception;
+
+public class ActionFailureException extends RuntimeException {
+
+ private static final long serialVersionUID = 4425249765923293627L;
+
+ public ActionFailureException() {
+ super(); // 调用父类的构造函数
+ }
+
+ public ActionFailureException(String paramString) {
+ super(paramString); // 调用父类的构造函数，并传入异常信息
+ }
+
+ public ActionFailureException(String paramString, Throwable paramThrowable) {
+ super(paramString, paramThrowable); // 调用父类的构造函数，并传入异常信息和原始异常
+ }
+}
diff --git a/app/src/main/java/net/micode/notes/gtask/exception/NetworkFailureException.java b/app/src/main/java/net/micode/notes/gtask/exception/NetworkFailureException.java
new file mode 100644
index 0000000..c6a2691
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/gtask/exception/NetworkFailureException.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.gtask.exception;
+
+public class NetworkFailureException extends Exception {
+
+ private static final long serialVersionUID = 2107610287180234136L;
+
+ public NetworkFailureException() {
+ super(); // 调用父类的构造函数
+ }
+
+ public NetworkFailureException(String paramString) {
+ super(paramString); // 调用父类的构造函数，并传入异常信息
+ }
+
+ public NetworkFailureException(String paramString, Throwable paramThrowable) {
+ super(paramString, paramThrowable); // 调用父类的构造函数，并传入异常信息和原始异常
+ }
+}
diff --git a/app/src/main/java/net/micode/notes/gtask/remote/GTaskASyncTask.java b/app/src/main/java/net/micode/notes/gtask/remote/GTaskASyncTask.java
new file mode 100644
index 0000000..c88aef0
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/gtask/remote/GTaskASyncTask.java
@@ -0,0 +1,123 @@
+
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.gtask.remote;
+
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.app.PendingIntent;
+import android.content.Context;
+import android.content.Intent;
+import android.os.AsyncTask;
+
+import net.micode.notes.R;
+import net.micode.notes.ui.NotesListActivity;
+import net.micode.notes.ui.NotesPreferenceActivity;
+
+
+public class GTaskASyncTask extends AsyncTask {
+
+ private static int GTASK_SYNC_NOTIFICATION_ID = 5234235;
+
+ public interface OnCompleteListener {
+ void onComplete();
+ }
+
+ private Context mContext; // 上下文对象
+
+ private NotificationManager mNotifiManager; // 通知管理器对象
+
+ private GTaskManager mTaskManager; // GTask 管理器对象
+
+ private OnCompleteListener mOnCompleteListener; // 异步任务完成后的回调接口
+
+ public GTaskASyncTask(Context context, OnCompleteListener listener) {
+ mContext = context; // 初始化上下文对象
+ mOnCompleteListener = listener; // 初始化回调接口
+ mNotifiManager = (NotificationManager) mContext
+ .getSystemService(Context.NOTIFICATION_SERVICE); // 初始化通知管理器对象
+ mTaskManager = GTaskManager.getInstance(); // 获取 GTask 管理器对象的单例
+ }
+
+ public void cancelSync() {
+ mTaskManager.cancelSync(); // 取消 GTask 同步
+ }
+
+ public void publishProgess(String message) {
+ publishProgress(new String[] {
+ message
+ }); // 向主线程发布进度更新
+ }
+
+ private void showNotification(int tickerId, String content) {
+ Notification notification = new Notification(R.drawable.notification, mContext
+ .getString(tickerId), System.currentTimeMillis()); // 创建通知
+ notification.defaults = Notification.DEFAULT_LIGHTS; // 设置默认的通知灯光
+ notification.flags = Notification.FLAG_AUTO_CANCEL; // 设置通知被点击后自动取消
+ PendingIntent pendingIntent;
+ if (tickerId != R.string.ticker_success) { // 如果是同步失败的通知
+ pendingIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext,
+ NotesPreferenceActivity.class), 0); // 点击通知后打开 NotesPreferenceActivity
+
+ } else { // 如果是同步成功的通知
+ pendingIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext,
+ NotesListActivity.class), 0); // 点击通知后打开 NotesListActivity
+ }
+ //notification.setLatestEventInfo(mContext, mContext.getString(R.string.app_name), content,
+ // pendingIntent); // 设置通知的标题、内容和点击后的操作
+ mNotifiManager.notify(GTASK_SYNC_NOTIFICATION_ID, notification); // 发送通知
+ }
+
+ @Override
+ protected Integer doInBackground(Void... unused) {
+ publishProgess(mContext.getString(R.string.sync_progress_login, NotesPreferenceActivity
+ .getSyncAccountName(mContext))); // 向主线程发布进度更新，显示正在登录的提示信息
+ return mTaskManager.sync(mContext, this); // 开始 GTask 同步，并返回同步结果
+ }
+
+ @Override
+ protected void onProgressUpdate(String... progress) {
+ showNotification(R.string.ticker_syncing, progress[0]); // 显示同步进度的通知
+ if (mContext instanceof GTaskSyncService) {
+ ((GTaskSyncService) mContext).sendBroadcast(progress[0]); // 向 GTaskSyncService 发送广播，以便更新 UI
+ }
+ }
+
+ @Override
+ protected void onPostExecute(Integer result) {
+ if (result == GTaskManager.STATE_SUCCESS) { // 如果同步成功
+ showNotification(R.string.ticker_success, mContext.getString(
+ R.string.success_sync_account, mTaskManager.getSyncAccount())); // 显示同步成功的通知
+ NotesPreferenceActivity.setLastSyncTime(mContext, System.currentTimeMillis()); // 更新最后同步时间
+ } else if (result == GTaskManager.STATE_NETWORK_ERROR) { // 如果网络错误
+ showNotification(R.string.ticker_fail, mContext.getString(R.string.error_sync_network)); // 显示同步失败的通知，提示网络错误
+ } else if (result == GTaskManager.STATE_INTERNAL_ERROR) { // 如果内部错误
+ showNotification(R.string.ticker_fail, mContext.getString(R.string.error_sync_internal)); // 显示同步失败的通知，提示内部错误
+ } else if (result == GTaskManager.STATE_SYNC_CANCELLED) { // 如果同步被取消
+ showNotification(R.string.ticker_cancel, mContext
+ .getString(R.string.error_sync_cancelled)); // 显示同步被取消的通知
+ }
+ if (mOnCompleteListener != null) { // 如果设置了 OnCompleteListener
+ new Thread(new Runnable() { // 在新线程中执行 OnCompleteListener
+
+ public void run() {
+ mOnCompleteListener.onComplete();
+ }
+ }).start();
+ }
+ }
+}
\ No newline at end of file
diff --git a/app/src/main/java/net/micode/notes/gtask/remote/GTaskClient.java b/app/src/main/java/net/micode/notes/gtask/remote/GTaskClient.java
new file mode 100644
index 0000000..91314f8
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/gtask/remote/GTaskClient.java
@@ -0,0 +1,668 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.gtask.remote;
+
+import android.accounts.Account;
+import android.accounts.AccountManager;
+import android.accounts.AccountManagerFuture;
+import android.app.Activity;
+import android.os.Bundle;
+import android.text.TextUtils;
+import android.util.Log;
+
+import net.micode.notes.gtask.data.Node;
+import net.micode.notes.gtask.data.Task;
+import net.micode.notes.gtask.data.TaskList;
+import net.micode.notes.gtask.exception.ActionFailureException;
+import net.micode.notes.gtask.exception.NetworkFailureException;
+import net.micode.notes.tool.GTaskStringUtils;
+import net.micode.notes.ui.NotesPreferenceActivity;
+
+import org.apache.http.HttpEntity;
+import org.apache.http.HttpResponse;
+import org.apache.http.client.ClientProtocolException;
+import org.apache.http.client.entity.UrlEncodedFormEntity;
+import org.apache.http.client.methods.HttpGet;
+import org.apache.http.client.methods.HttpPost;
+import org.apache.http.cookie.Cookie;
+import org.apache.http.impl.client.BasicCookieStore;
+import org.apache.http.impl.client.DefaultHttpClient;
+import org.apache.http.message.BasicNameValuePair;
+import org.apache.http.params.BasicHttpParams;
+import org.apache.http.params.HttpConnectionParams;
+import org.apache.http.params.HttpParams;
+import org.apache.http.params.HttpProtocolParams;
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.zip.GZIPInputStream;
+import java.util.zip.Inflater;
+import java.util.zip.InflaterInputStream;
+
+
+public class GTaskClient {
+ private static final String TAG = GTaskClient.class.getSimpleName();
+
+ private static final String GTASK_URL = "https://mail.google.com/tasks/"; // GTask 的基础 URL
+
+ private static final String GTASK_GET_URL = "https://mail.google.com/tasks/ig"; // 获取 GTask 数据的 URL
+
+ private static final String GTASK_POST_URL = "https://mail.google.com/tasks/r/ig"; // 提交 GTask 数据的 URL
+
+ private static GTaskClient mInstance = null; // 单例模式，保存 GTaskClient 的唯一实例
+
+ private DefaultHttpClient mHttpClient; // HTTP 客户端
+
+ private String mGetUrl; // 获取 GTask 数据的完整 URL
+
+ private String mPostUrl; // 提交 GTask 数据的完整 URL
+
+ private long mClientVersion; // 客户端版本号
+
+ private boolean mLoggedin; // 是否已登录
+
+ private long mLastLoginTime; // 上次登录时间
+
+ private int mActionId; // 操作 ID
+
+ private Account mAccount; // GTask 帐户
+
+ private JSONArray mUpdateArray; // 待更新的 GTask 数据
+ private GTaskClient() {
+ mHttpClient = null; // 初始化 HTTP 客户端为 null
+ mGetUrl = GTASK_GET_URL; // 初始化获取 GTask 数据的 URL
+ mPostUrl = GTASK_POST_URL; // 初始化提交 GTask 数据的 URL
+ mClientVersion = -1; // 初始化客户端版本号为 -1
+ mLoggedin = false; // 初始化登录状态为 false
+ mLastLoginTime = 0; // 初始化上次登录时间为 0
+ mActionId = 1; // 初始化操作 ID 为 1
+ mAccount = null; // 初始化 GTask 帐户为 null
+ mUpdateArray = null; // 初始化待更新的 GTask 数据为 null
+ }/*该构造方法用于创建GTaskClient的实例，其中将mHttpClient、mAccount、mUpdateArray等成员变量初始化为 null 或默认值，将mGetUrl和mPostUrl初始化为 GTask 的默认 URL，将mClientVersion初始化为 -1，将mLoggedin初始化为 false，将mLastLoginTime初始化为 0，将mActionId初始化为 1。
+ 这里使用了默认访问控制符private，意味着该构造方法只能在GTaskClient类内部使用，不能在其他类中创建GTaskClient的实例。*/
+
+ public static synchronized GTaskClient getInstance() {
+ if (mInstance == null) { // 如果唯一实例不存在
+ mInstance = new GTaskClient(); // 则创建一个新实例
+ }
+ return mInstance; // 返回唯一实例
+ }/*该方法是单例模式的实现，用于获取GTaskClient的唯一实例。在该方法内部，首先判断唯一实例是否已经存在，如果不存在则创建一个新实例，并将其赋值给mInstance。最后返回唯一实例。
+ 由于该方法可能被多个线程同时调用，所以使用了synchronized关键字来保证在同一时刻只有一个线程能够访问该方法。
+ 同时，该方法返回的是静态成员变量mInstance，因此可以通过GTaskClient.getInstance()的方式在任意位置获取GTaskClient的唯一实例。*/
+
+ public boolean login(Activity activity) {
+ // we suppose that the cookie would expire after 5 minutes
+ // then we need to re-login
+ final long interval = 1000 * 60 * 5;
+ if (mLastLoginTime + interval < System.currentTimeMillis()) {
+ mLoggedin = false;
+ }
+
+ // need to re-login after account switch
+ if (mLoggedin
+ && !TextUtils.equals(getSyncAccount().name, NotesPreferenceActivity
+ .getSyncAccountName(activity))) {
+ mLoggedin = false;
+ }
+
+ if (mLoggedin) { // 如果已登录，则直接返回
+ Log.d(TAG, "already logged in");
+ return true;
+ }
+
+ mLastLoginTime = System.currentTimeMillis(); // 记录登录时间
+ String authToken = loginGoogleAccount(activity, false); // 登录 Google 帐户，获取授权令牌
+ if (authToken == null) { // 如果登录失败，则返回 false
+ Log.e(TAG, "login google account failed");
+ return false;
+ }
+
+ // login with custom domain if necessary
+ if (!(mAccount.name.toLowerCase().endsWith("gmail.com") || mAccount.name.toLowerCase()
+ .endsWith("googlemail.com"))) { // 如果不是 Gmail 或 Googlemail 帐户，则使用自定义域名登录
+ StringBuilder url = new StringBuilder(GTASK_URL).append("a/"); // 构造自定义域名的 URL
+ int index = mAccount.name.indexOf('@') + 1;
+ String suffix = mAccount.name.substring(index);
+ url.append(suffix + "/");
+ mGetUrl = url.toString() + "ig"; // 更新获取 GTask 数据的 URL
+ mPostUrl = url.toString() + "r/ig"; // 更新提交 GTask 数据的 URL
+
+ if (tryToLoginGtask(activity, authToken)) { // 尝试登录 GTask
+ mLoggedin = true; // 登录成功
+ }
+ }
+
+ // 如果自定义域名登录失败，则使用 Google 官方 URL 登录
+ if (!mLoggedin) {
+ mGetUrl = GTASK_GET_URL;
+ mPostUrl = GTASK_POST_URL;
+ if (!tryToLoginGtask(activity, authToken)) {
+ return false;
+ }
+ }
+
+ mLoggedin = true; // 登录成功
+ return true;
+ }/*该方法用于登录 GTask，首先检查上次登录时间是否超过 5 分钟，如果超过则需要重新登录，将mLoggedin设置为 false。
+ 然后判断当前帐户是否发生切换，如果发生切换也需要重新登录，同样将mLoggedin设置为 false。
+ 如果已经登录，则直接返回 true。否则，记录本次登录时间，然后使用loginGoogleAccount()方法登录 Google 帐户，获取授权令牌。
+ 如果登录失败，则返回 false。接下来，如果当前帐户不是 Gmail 或 Googlemail 帐户，则使用自定义域名登录，更新获取 GTask 数据和提交 GTask 数据的 URL，然后尝试登录 GTask。
+ 如果自定义域名登录失败，则使用 Google 官方 URL 登录。
+ 无论使用哪种方式登录成功，最后将mLoggedin设置为 true，表示已经登录成功。*/
+
+ private String loginGoogleAccount(Activity activity, boolean invalidateToken) {
+ String authToken;
+ AccountManager accountManager = AccountManager.get(activity); // 获取 AccountManager 实例
+ Account[] accounts = accountManager.getAccountsByType("com.google"); // 获取所有 Google 帐户
+
+ if (accounts.length == 0) { // 如果没有可用的 Google 帐户，则返回 null
+ Log.e(TAG, "there is no available google account");
+ return null;
+ }
+
+ String accountName = NotesPreferenceActivity.getSyncAccountName(activity); // 获取设置中的同步帐户名称
+ Account account = null;
+ for (Account a : accounts) {
+ if (a.name.equals(accountName)) { // 如果找到同名帐户，则使用该帐户
+ account = a;
+ break;
+ }
+ }
+ if (account != null) {
+ mAccount = account; // 更新当前使用的帐户
+ } else {
+ Log.e(TAG, "unable to get an account with the same name in the settings");
+ return null;
+ }
+
+ // get the token now
+ AccountManagerFuture accountManagerFuture = accountManager.getAuthToken(account,
+ "goanna_mobile", null, activity, null, null); // 获取 token
+ try {
+ Bundle authTokenBundle = accountManagerFuture.getResult();
+ authToken = authTokenBundle.getString(AccountManager.KEY_AUTHTOKEN); // 从 Bundle 中获取 token
+ if (invalidateToken) { // 如果需要使 token 失效
+ accountManager.invalidateAuthToken("com.google", authToken); // 使 token 失效
+ loginGoogleAccount(activity, false); // 重新登录
+ }
+ } catch (Exception e) { // 获取 token 失败
+ Log.e(TAG, "get auth token failed");
+ authToken = null;
+ }
+
+ return authToken; // 返回 token
+ }
+ /*该方法的作用是获取 Google 帐户的 token，以用于访问 Google 服务。
+ 它首先获取所有的 Google 帐户，然后根据设置中的同步帐户名称选择使用哪个帐户。
+ 接着，它使用AccountManager获取该帐户的 token，并返回该 token。
+ 如果invalidateToken参数为true，则该方法会使 token 失效，并重新登录，以获取新的 token。
+ */
+
+ private boolean tryToLoginGtask(Activity activity, String authToken) {
+ if (!loginGtask(authToken)) { // 如果登录 GTask 失败
+ // maybe the auth token is out of date, now let's invalidate the
+ // token and try again
+ authToken = loginGoogleAccount(activity, true); // 使 token 失效并重新登录
+ if (authToken == null) { // 如果重新登录失败，则返回 false
+ Log.e(TAG, "login google account failed");
+ return false;
+ }
+
+ if (!loginGtask(authToken)) { // 如果重新登录 GTask 仍然失败，则返回 false
+ Log.e(TAG, "login gtask failed");
+ return false;
+ }
+ }
+ return true; // 登录 GTask 成功，返回 true
+ }
+ /*该方法的作用是尝试登录 GTask，它接收一个authToken参数，该参数是通过loginGoogleAccount()方法获取的 Google 帐户的 token。
+ 如果登录 GTask 失败，则会使 token 失效并重新登录，再次尝试登录 GTask。
+ 如果重新登录失败，则返回false，否则返回true。
+ */
+
+ private boolean loginGtask(String authToken) {
+ int timeoutConnection = 10000;
+ int timeoutSocket = 15000;
+ HttpParams httpParameters = new BasicHttpParams();
+ HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection);
+ HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);
+
+ // 设置 HttpClient 的参数
+ mHttpClient = new DefaultHttpClient(httpParameters);
+ BasicCookieStore localBasicCookieStore = new BasicCookieStore();
+ mHttpClient.setCookieStore(localBasicCookieStore);
+ HttpProtocolParams.setUseExpectContinue(mHttpClient.getParams(), false);
+
+ // login gtask
+ try {
+ String loginUrl = mGetUrl + "?auth=" + authToken;
+ HttpGet httpGet = new HttpGet(loginUrl); // 创建 HTTP GET 请求
+ HttpResponse response = mHttpClient.execute(httpGet); // 执行请求
+
+ // 获取 cookie
+ List cookies = mHttpClient.getCookieStore().getCookies();
+ boolean hasAuthCookie = false;
+ for (Cookie cookie : cookies) {
+ if (cookie.getName().contains("GTL")) {
+ hasAuthCookie = true;
+ }
+ }
+ if (!hasAuthCookie) {
+ Log.w(TAG, "it seems that there is no auth cookie");
+ }
+
+ // 获取客户端版本
+ String resString = getResponseContent(response.getEntity());
+ String jsBegin = "_setup(";
+ String jsEnd = ")}";
+ int begin = resString.indexOf(jsBegin);
+ int end = resString.lastIndexOf(jsEnd);
+ String jsString = null;
+ if (begin != -1 && end != -1 && begin < end) {
+ jsString = resString.substring(begin + jsBegin.length(), end);
+ }
+ JSONObject js = new JSONObject(jsString);
+ mClientVersion = js.getLong("v");
+ } catch (JSONException e) {
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ return false;
+ } catch (Exception e) {
+ // simply catch all exceptions
+ Log.e(TAG, "httpget gtask_url failed");
+ return false;
+ }
+
+ return true;
+ }
+ /*该方法的作用是使用给定的authToken登录 GTask。
+ 它创建了一个 HTTP GET 请求，并将authToken添加到 URL 末尾，然后执行该请求并获取响应。
+ 它还获取了响应中包含的 cookie，并将客户端版本存储在mClientVersion中。
+ 如果登录成功，则返回true，否则返回false。如果发生异常，则返回false。
+ */
+
+ private int getActionId() {
+ return mActionId++; // 返回下一个 action ID，并将 mActionId 加 1
+ }
+
+ private HttpPost createHttpPost() {
+ HttpPost httpPost = new HttpPost(mPostUrl); // 创建一个 HTTP POST 请求
+ httpPost.setHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8"); // 设置请求头的 Content-Type
+ httpPost.setHeader("AT", "1"); // 设置请求头的 AT 字段为 1
+ return httpPost; // 返回创建的 HTTP POST 请求
+ }/*getActionId()的作用是获取下一个 action ID，每次调用它都会将mActionId加 1，并返回加 1 后的值。
+ createHttpPost()的作用是创建一个 HTTP POST 请求，并设置请求头的 Content-Type 为application/x-www-form-urlencoded;charset=utf-8，设置请求头的 AT 字段为 1。
+ 它返回创建的 HTTP POST 请求对象。
+ */
+
+ private String getResponseContent(HttpEntity entity) throws IOException {
+ String contentEncoding = null;
+ if (entity.getContentEncoding() != null) {
+ contentEncoding = entity.getContentEncoding().getValue(); // 获取响应内容的编码方式
+ Log.d(TAG, "encoding: " + contentEncoding);
+ }
+
+ InputStream input = entity.getContent(); // 获取响应内容的输入流
+ if (contentEncoding != null && contentEncoding.equalsIgnoreCase("gzip")) {
+ input = new GZIPInputStream(entity.getContent()); // 如果响应内容被 gzip 压缩了，则创建一个 GZIPInputStream 解压缩
+ } else if (contentEncoding != null && contentEncoding.equalsIgnoreCase("deflate")) {
+ Inflater inflater = new Inflater(true);
+ input = new InflaterInputStream(entity.getContent(), inflater); // 如果响应内容被 deflate 压缩了，则创建一个 InflaterInputStream 解压缩
+ }
+
+ try {
+ InputStreamReader isr = new InputStreamReader(input); // 创建一个 InputStreamReader 对象
+ BufferedReader br = new BufferedReader(isr); // 创建一个 BufferedReader 对象
+ StringBuilder sb = new StringBuilder(); // 创建一个 StringBuilder 对象
+
+ while (true) {
+ String buff = br.readLine(); // 逐行读取响应内容
+ if (buff == null) {
+ return sb.toString(); // 如果读到了末尾，则返回读取到的响应内容
+ }
+ sb = sb.append(buff); // 将读取到的响应内容追加到 StringBuilder 对象中
+ }
+ } finally {
+ input.close(); // 关闭输入流
+ }
+ }
+ /*getResponseContent(HttpEntity entity)的作用是从HttpEntity对象中获取响应内容，并将其解压（如果响应内容被压缩了）。它返回解压后的响应内容。
+ 首先获取响应内容的编码方式，然后根据编码方式创建对应的输入流。
+ 如果响应内容被 gzip 压缩了，则创建一个 GZIPInputStream 对象解压缩;如果响应内容被 deflate 压缩了，则创建一个 InflaterInputStream 对象解压缩。
+ 接着使用 InputStreamReader 和 BufferedReader 逐行读取响应内容，并将其追加到 StringBuilder 对象中。
+ 最后返回读取到的响应内容，并关闭输入流。
+ */
+
+ private JSONObject postRequest(JSONObject js) throws NetworkFailureException {
+ if (!mLoggedin) {
+ Log.e(TAG, "please login first");
+ throw new ActionFailureException("not logged in");
+ }
+
+ HttpPost httpPost = createHttpPost(); // 创建 HTTP POST 请求
+ try {
+ LinkedList list = new LinkedList();
+ list.add(new BasicNameValuePair("r", js.toString())); // 将传入的 JSONObject 对象转为字符串，并添加到请求参数中
+ UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list, "UTF-8"); // 创建一个 UrlEncodedFormEntity 对象，用于封装请求参数
+ httpPost.setEntity(entity); // 将 UrlEncodedFormEntity 对象设置为 HTTP POST 请求的实体
+
+ // execute the post
+ HttpResponse response = mHttpClient.execute(httpPost); // 执行 HTTP POST 请求
+ String jsString = getResponseContent(response.getEntity()); // 获取响应内容，并将其解压（如果响应内容被压缩了），然后转为字符串
+ return new JSONObject(jsString); // 将响应内容转为 JSONObject 对象
+
+ } catch (ClientProtocolException e) {
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ throw new NetworkFailureException("postRequest failed");
+ } catch (IOException e) {
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ throw new NetworkFailureException("postRequest failed");
+ } catch (JSONException e) {
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ throw new ActionFailureException("unable to convert response content to jsonobject");
+ } catch (Exception e) {
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ throw new ActionFailureException("error occurs when posting request");
+ }
+ }
+ /*postRequest(JSONObject js)的作用是向服务器发送 HTTP POST 请求，并将响应内容转为JSONObject对象返回。
+ 首先检查用户是否已经登录，如果没有登录则抛出异常。然后创建一个 HTTP POST 请求，并将传入的 JSONObject 对象转为字符串，并添加到请求参数中。接着，创建一个 UrlEncodedFormEntity 对象，用于封装请求参数，并将其设置为 HTTP POST 请求的实体。
+ 执行 HTTP POST 请求，并获取响应内容。将响应内容解压（如果响应内容被压缩了），然后将其转为字符串，并通过 JSONObject 构造方法将其转为 JSONObject 对象。如果转换失败，则抛出异常。
+ 如果在执行 HTTP POST 请求或转换响应内容为 JSONObject 对象时出现异常，则抛出相应的异常。
+ */
+ public void createTask(Task task) throws NetworkFailureException {
+ commitUpdate(); // 提交所有未提交的更新操作
+
+ try {
+ JSONObject jsPost = new JSONObject(); // 创建一个新的 JSONObject 对象
+ JSONArray actionList = new JSONArray(); // 创建一个新的 JSONArray 对象，用于存储操作列表
+
+ // action_list
+ actionList.put(task.getCreateAction(getActionId())); // 将新增任务的操作添加到操作列表中
+ jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); // 将操作列表添加到 JSONObject 对象中
+
+ // client_version
+ jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); // 添加客户端版本号到 JSONObject 对象中
+
+ // post
+ JSONObject jsResponse = postRequest(jsPost); // 向服务器发送 HTTP POST 请求，并获取响应内容
+ JSONObject jsResult = (JSONObject) jsResponse.getJSONArray(
+ GTaskStringUtils.GTASK_JSON_RESULTS).get(0); // 从响应内容中获取结果列表，并获取第一个结果
+ task.setGid(jsResult.getString(GTaskStringUtils.GTASK_JSON_NEW_ID)); // 获取新任务的 ID，并将其设置为 Task 对象的 gid 属性
+
+ } catch (JSONException e) {
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ throw new ActionFailureException("create task: handing jsonobject failed");
+ }
+ }
+ /*createTask(Task task)的作用是创建新任务。首先调用commitUpdate()方法提交所有未提交的更新操作。
+ 然后创建一个新的 JSONObject 对象，并创建一个新的 JSONArray 对象，用于存储操作列表。将新增任务的操作添加到操作列表中，并将操作列表添加到 JSONObject 对象中。将客户端版本号也添加到 JSONObject 对象中。
+ 向服务器发送 HTTP POST 请求，并获取响应内容。从响应内容中获取结果列表，并获取第一个结果。从结果中获取新任务的 ID，并将其设置为 Task 对象的 gid 属性。
+ 如果在处理 JSONObject 对象时出现异常，则抛出相应的异常。
+ */
+ public void createTaskList(TaskList tasklist) throws NetworkFailureException {
+ commitUpdate(); // 提交所有未提交的更新操作
+
+ try {
+ JSONObject jsPost = new JSONObject(); // 创建一个新的 JSONObject 对象
+ JSONArray actionList = new JSONArray(); // 创建一个新的 JSONArray 对象，用于存储操作列表
+
+ // action_list
+ actionList.put(tasklist.getCreateAction(getActionId())); // 将新增任务列表的操作添加到操作列表中
+ jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); // 将操作列表添加到 JSONObject 对象中
+
+ // client_version
+ jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); // 添加客户端版本号到 JSONObject 对象中
+
+ // post
+ JSONObject jsResponse = postRequest(jsPost); // 向服务器发送 HTTP POST 请求，并获取响应内容
+ JSONObject jsResult = (JSONObject) jsResponse.getJSONArray(
+ GTaskStringUtils.GTASK_JSON_RESULTS).get(0); // 从响应内容中获取结果列表，并获取第一个结果
+ tasklist.setGid(jsResult.getString(GTaskStringUtils.GTASK_JSON_NEW_ID)); // 获取新任务列表的 ID，并将其设置为 TaskList 对象的 gid 属性
+
+ } catch (JSONException e) {
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ throw new ActionFailureException("create tasklist: handing jsonobject failed");
+ }
+ }
+ /*createTaskList(TaskList tasklist)的作用是创建新任务列表。首先调用commitUpdate()方法提交所有未提交的更新操作。
+ 然后创建一个新的 JSONObject 对象，并创建一个新的 JSONArray 对象，用于存储操作列表。将新增任务列表的操作添加到操作列表中，并将操作列表添加到 JSONObject 对象中。将客户端版本号也添加到 JSONObject 对象中。
+ 向服务器发送 HTTP POST 请求，并获取响应内容。从响应内容中获取结果列表，并获取第一个结果。从结果中获取新任务列表的 ID，并将其设置为 TaskList 对象的 gid 属性。
+ 如果在处理 JSONObject 对象时出现异常，则抛出相应的异常。
+ */
+ public void commitUpdate() throws NetworkFailureException {
+ if (mUpdateArray != null) { // 判断更新操作列表是否为空
+ try {
+ JSONObject jsPost = new JSONObject(); // 创建一个新的 JSONObject 对象
+
+ // action_list
+ jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, mUpdateArray); // 将更新操作列表添加到 JSONObject 对象中
+
+ // client_version
+ jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); // 添加客户端版本号到 JSONObject 对象中
+
+ postRequest(jsPost); // 向服务器发送 HTTP POST 请求，提交更新操作
+ mUpdateArray = null; // 更新操作提交成功后，清空更新操作列表
+
+ } catch (JSONException e) {
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ throw new ActionFailureException("commit update: handing jsonobject failed");
+ }
+ }
+ }
+ /*commitUpdate()的作用是提交所有未提交的更新操作。如果更新操作列表不为空，则创建一个新的 JSONObject 对象，将更新操作列表添加到 JSONObject 对象中，并将客户端版本号也添加到 JSONObject 对象中。
+ 向服务器发送 HTTP POST 请求，提交更新操作。提交成功后，清空更新操作列表。
+ 如果在处理 JSONObject 对象时出现异常，则抛出相应的异常。
+ */
+ public void addUpdateNode(Node node) throws NetworkFailureException {
+ if (node != null) { // 判断 Node 对象是否为空
+ // too many update items may result in an error
+ // set max to 10 items
+ if (mUpdateArray != null && mUpdateArray.length() > 10) { // 判断更新操作列表是否已满
+ commitUpdate(); // 如果已满，则提交所有未提交的更新操作
+ }
+
+ if (mUpdateArray == null)
+ mUpdateArray = new JSONArray(); // 如果更新操作列表还未创建，则创建一个新的 JSONArray 对象
+ mUpdateArray.put(node.getUpdateAction(getActionId())); // 将 Node 对象的更新操作添加到更新操作列表中
+ }
+ }
+ /*addUpdateNode(Node node)的作用是向更新操作列表中添加一个新的更新操作。首先判断 Node 对象是否为空。
+ 如果更新操作列表已满（长度大于 10），则调用commitUpdate()方法提交所有未提交的更新操作。
+ 如果更新操作列表还未创建，则创建一个新的 JSONArray 对象。将 节点
+ 如果 Node 对象为空，则不执行任何操作。
+ */
+ public void moveTask(Task task, TaskList preParent, TaskList curParent)
+ throws NetworkFailureException {
+ commitUpdate(); // 先提交所有未提交的更新操作
+ try {
+ JSONObject jsPost = new JSONObject(); // 创建一个新的 JSONObject 对象
+ JSONArray actionList = new JSONArray(); // 创建一个新的 JSONArray 对象，用于存储更新操作
+ JSONObject action = new JSONObject(); // 创建一个新的 JSONObject 对象，用于存储移动任务的操作
+
+ // action_list
+ action.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
+ GTaskStringUtils.GTASK_JSON_ACTION_TYPE_MOVE); // 设置操作类型为移动任务
+ action.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, getActionId()); // 设置操作 ID
+ action.put(GTaskStringUtils.GTASK_JSON_ID, task.getGid()); // 设置任务的 GID
+
+ if (preParent == curParent && task.getPriorSibling() != null) {
+ // put prioring_sibing_id only if moving within the tasklist and
+ // it is not the first one
+ action.put(GTaskStringUtils.GTASK_JSON_PRIOR_SIBLING_ID, task.getPriorSibling()); // 如果是在同一任务列表中移动任务，则设置前一个任务的 GID
+ }
+
+ action.put(GTaskStringUtils.GTASK_JSON_SOURCE_LIST, preParent.getGid()); // 设置任务的原始任务列表的 GID
+ action.put(GTaskStringUtils.GTASK_JSON_DEST_PARENT, curParent.getGid()); // 设置任务的目标任务列表的 GID
+
+ if (preParent != curParent) {
+ // put the dest_list only if moving between tasklists
+ action.put(GTaskStringUtils.GTASK_JSON_DEST_LIST, curParent.getGid()); // 如果是在不同的任务列表之间移动任务，则设置任务的目标任务列表的 GID
+ }
+
+ actionList.put(action); // 将移动任务的操作添加到更新操作列表中
+ jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); // 将更新操作列表添加到 JSONObject 对象中
+
+ // client_version
+ jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); // 添加客户端版本号到 JSONObject 对象中
+
+ postRequest(jsPost); // 向服务器发送 HTTP POST 请求，提交更新操作
+
+ } catch (JSONException e) {
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ throw new ActionFailureException("move task: handing jsonobject failed");
+ }
+ }
+ /*moveTask(Task task, TaskList preParent, TaskList curParent)的作用是移动一个任务到另一个任务列表中。
+ 首先调用commitUpdate()方法提交所有未提交的更新操作。然后，创建一个新的 JSONObject 对象，用于存储移动任务的操作。
+ 在移动任务的操作中，设置操作类型为移动任务。设置操作 ID 和任务的 GID。如果是在同一任务列表中移动任务，则设置前一个任务的 GID。设置任务的原始任务列表的 GID 和任务的目标任务列表的 GID。如果是在不同的任务列表之间移动任务，则设置任务的目标任务列表的 GID。
+ 将移动任务的操作添加到更新操作列表中，然后将更新操作列表添加到 JSONObject 对象中。最后，添加客户端版本号到 JSONObject 对象中，向服务器发送 HTTP POST 请求，提交更新操作。
+ 如果处理 JSONObject 对象时出现异常，则抛出 ActionFailureException 异常。
+ */
+ public void deleteNode(Node node) throws NetworkFailureException {
+ commitUpdate(); // 先提交所有未提交的更新操作
+ try {
+ JSONObject jsPost = new JSONObject(); // 创建一个新的 JSONObject 对象
+ JSONArray actionList = new JSONArray(); // 创建一个新的 JSONArray 对象，用于存储更新操作
+
+ // action_list
+ node.setDeleted(true); // 将节点标记为已删除
+ actionList.put(node.getUpdateAction(getActionId())); // 将节点的更新操作添加到更新操作列表中
+ jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); // 将更新操作列表添加到 JSONObject 对象中
+
+ // client_version
+ jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); // 添加客户端版本号到 JSONObject 对象中
+
+ postRequest(jsPost); // 向服务器发送 HTTP POST 请求，提交更新操作
+ mUpdateArray = null; // 将更新操作数组置为空
+
+ } catch (JSONException e) {
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ throw new ActionFailureException("delete node: handing jsonobject failed"); // 处理 JSONObject 对象时出现异常，则抛出 ActionFailureException 异常
+ }
+ }
+ /*此方法的主要目的是删除一个节点，并将删除操作提交到服务器。
+ 方法首先提交所有未提交的更新操作，然后创建一个新的 JSONObject 对象，将节点的删除操作添加到该对象中，同时添加客户端版本号。
+ 最后，方法通过向服务器发送 HTTP POST 请求来提交更新操作，如果在处理 JSONObject 对象时出现异常，则会抛出 ActionFailureException 异常。
+ */
+
+ public JSONArray getTaskLists() throws NetworkFailureException {
+ if (!mLoggedin) { // 如果用户没有登录，则抛出 ActionFailureException 异常
+ Log.e(TAG, "please login first");
+ throw new ActionFailureException("not logged in");
+ }
+
+ try {
+ HttpGet httpGet = new HttpGet(mGetUrl); // 创建一个新的 HttpGet 请求对象
+ HttpResponse response = null;
+ response = mHttpClient.execute(httpGet); // 执行 HttpGet 请求
+
+ // get the task list
+ String resString = getResponseContent(response.getEntity()); // 获取响应内容
+ String jsBegin = "_setup(";
+ String jsEnd = ")}";
+ int begin = resString.indexOf(jsBegin);
+ int end = resString.lastIndexOf(jsEnd);
+ String jsString = null;
+ if (begin != -1 && end != -1 && begin < end) { // 如果响应内容中包含任务列表，那么提取出来
+ jsString = resString.substring(begin + jsBegin.length(), end);
+ }
+ JSONObject js = new JSONObject(jsString); // 将任务列表转换成 JSONObject 对象
+ return js.getJSONObject("t").getJSONArray(GTaskStringUtils.GTASK_JSON_LISTS); // 返回任务列表数组
+
+ } catch (ClientProtocolException e) { // 如果发生协议错误，则抛出 NetworkFailureException 异常
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ throw new NetworkFailureException("gettasklists: httpget failed");
+ } catch (IOException e) { // 如果发生 I/O 错误，则抛出 NetworkFailureException 异常
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ throw new NetworkFailureException("gettasklists: httpget failed");
+ } catch (JSONException e) { // 如果处理 JSONObject 对象时出现异常，则抛出 ActionFailureException 异常
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ throw new ActionFailureException("get task lists: handing jasonobject failed");
+ }
+ }
+ /*此方法的主要目的是从服务器获取用户的任务列表，并将其作为 JSONArray 对象返回。
+ 方法首先检查用户是否已登录，然后创建一个新的 HttpGet 请求对象，并通过执行该请求来获取响应内容。
+ 接下来，方法从响应内容中提取出任务列表，并将其转换为 JSONObject 对象，最后返回任务列表数组。
+ 如果在执行 HttpGet 请求或处理 JSONObject 对象时发生错误，则会抛出 NetworkFailureException 或 ActionFailureException 异常。
+ */
+
+ public JSONArray getTaskList(String listGid) throws NetworkFailureException {
+ commitUpdate(); // 提交所有未提交的更改
+ try {
+ JSONObject jsPost = new JSONObject(); // 创建一个新的 JSONObject 对象
+ JSONArray actionList = new JSONArray(); // 创建一个新的 JSONArray 对象
+ JSONObject action = new JSONObject(); // 创建一个新的 JSONObject 对象
+
+ // action_list
+ action.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
+ GTaskStringUtils.GTASK_JSON_ACTION_TYPE_GETALL); // 设置 action 的类型为 "getall"
+ action.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, getActionId()); // 设置 action 的 ID
+ action.put(GTaskStringUtils.GTASK_JSON_LIST_ID, listGid); // 设置 action 操作的任务列表 ID
+ action.put(GTaskStringUtils.GTASK_JSON_GET_DELETED, false); // 设置是否获取已删除的任务
+ actionList.put(action); // 将 action 添加到 action_list 中
+ jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); // 将 action_list 添加到 jsPost 中
+
+ // client_version
+ jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); // 设置客户端版本号
+
+ JSONObject jsResponse = postRequest(jsPost); // 发送请求并获取响应
+ return jsResponse.getJSONArray(GTaskStringUtils.GTASK_JSON_TASKS); // 从响应中获取任务列表并返回
+
+ } catch (JSONException e) { // 如果处理 JSONObject 对象时出现异常，则抛出 ActionFailureException 异常
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ throw new ActionFailureException("get task list: handing jsonobject failed");
+ }
+ }
+ /*此方法的主要目的是从服务器获取特定任务列表的任务，并将其作为 JSONArray 对象返回。
+ 方法首先提交所有未提交的更改，然后构造一个包含获取任务列表的请求并发送它。
+ 接下来，方法从响应中提取出任务列表，并将其作为 JSONArray 对象返回。
+ 如果在处理 JSONObject 对象时发生错误，则会抛出 ActionFailureException 异常。
+ */
+
+ public Account getSyncAccount() {
+ return mAccount;
+ }
+ //这个方法返回GTaskClient的同步账户（即当前使用的 Google 帐户）。
+
+ public void resetUpdateArray() {
+ mUpdateArray = null;
+ }
+}
+ /*这个方法将GTaskClient的更新数组mUpdateArray设置为null，以清除未提交的更改。
+ 在更新任务列表之前，需要调用commitUpdate()方法提交所有未提交的更改，如果您想丢弃这些更改，可以调用resetUpdateArray()方法以清除它们。
+ */
\ No newline at end of file
diff --git a/app/src/main/java/net/micode/notes/gtask/remote/GTaskManager.java b/app/src/main/java/net/micode/notes/gtask/remote/GTaskManager.java
new file mode 100644
index 0000000..d2b4082
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/gtask/remote/GTaskManager.java
@@ -0,0 +1,800 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.gtask.remote;
+
+import android.app.Activity;
+import android.content.ContentResolver;
+import android.content.ContentUris;
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.Cursor;
+import android.util.Log;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.gtask.data.MetaData;
+import net.micode.notes.gtask.data.Node;
+import net.micode.notes.gtask.data.SqlNote;
+import net.micode.notes.gtask.data.Task;
+import net.micode.notes.gtask.data.TaskList;
+import net.micode.notes.gtask.exception.ActionFailureException;
+import net.micode.notes.gtask.exception.NetworkFailureException;
+import net.micode.notes.tool.DataUtils;
+import net.micode.notes.tool.GTaskStringUtils;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Map;
+
+
+public class GTaskManager {
+ private static final String TAG = GTaskManager.class.getSimpleName();
+
+ public static final int STATE_SUCCESS = 0;
+
+ public static final int STATE_NETWORK_ERROR = 1;
+
+ public static final int STATE_INTERNAL_ERROR = 2;
+
+ public static final int STATE_SYNC_IN_PROGRESS = 3;
+
+ public static final int STATE_SYNC_CANCELLED = 4;
+
+ private static GTaskManager mInstance = null;
+
+ private Activity mActivity;
+
+ private Context mContext;
+
+ private ContentResolver mContentResolver;
+
+ private boolean mSyncing;
+
+ private boolean mCancelled;
+
+ private HashMap mGTaskListHashMap;
+
+ private HashMap mGTaskHashMap;
+
+ private HashMap mMetaHashMap;
+
+ private TaskList mMetaList;
+
+ private HashSet mLocalDeleteIdMap;
+
+ private HashMap mGidToNid;
+
+ private HashMap mNidToGid;
+
+ private GTaskManager() {
+ mSyncing = false;
+ mCancelled = false;
+ mGTaskListHashMap = new HashMap();
+ mGTaskHashMap = new HashMap();
+ mMetaHashMap = new HashMap();
+ mMetaList = null;
+ mLocalDeleteIdMap = new HashSet();
+ mGidToNid = new HashMap();
+ mNidToGid = new HashMap();
+ }
+
+ public static synchronized GTaskManager getInstance() {
+ if (mInstance == null) {
+ mInstance = new GTaskManager();
+ }
+ return mInstance;
+ }
+
+ public synchronized void setActivityContext(Activity activity) {
+ // used for getting authtoken
+ mActivity = activity;
+ }
+
+ public int sync(Context context, GTaskASyncTask asyncTask) {
+ if (mSyncing) {
+ Log.d(TAG, "Sync is in progress");
+ return STATE_SYNC_IN_PROGRESS;
+ }
+ mContext = context;
+ mContentResolver = mContext.getContentResolver();
+ mSyncing = true;
+ mCancelled = false;
+ mGTaskListHashMap.clear();
+ mGTaskHashMap.clear();
+ mMetaHashMap.clear();
+ mLocalDeleteIdMap.clear();
+ mGidToNid.clear();
+ mNidToGid.clear();
+
+ try {
+ GTaskClient client = GTaskClient.getInstance();
+ client.resetUpdateArray();
+
+ // login google task
+ if (!mCancelled) {
+ if (!client.login(mActivity)) {
+ throw new NetworkFailureException("login google task failed");
+ }
+ }
+
+ // get the task list from google
+ asyncTask.publishProgess(mContext.getString(R.string.sync_progress_init_list));
+ initGTaskList();
+
+ // do content sync work
+ asyncTask.publishProgess(mContext.getString(R.string.sync_progress_syncing));
+ syncContent();
+ } catch (NetworkFailureException e) {
+ Log.e(TAG, e.toString());
+ return STATE_NETWORK_ERROR;
+ } catch (ActionFailureException e) {
+ Log.e(TAG, e.toString());
+ return STATE_INTERNAL_ERROR;
+ } catch (Exception e) {
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ return STATE_INTERNAL_ERROR;
+ } finally {
+ mGTaskListHashMap.clear();
+ mGTaskHashMap.clear();
+ mMetaHashMap.clear();
+ mLocalDeleteIdMap.clear();
+ mGidToNid.clear();
+ mNidToGid.clear();
+ mSyncing = false;
+ }
+
+ return mCancelled ? STATE_SYNC_CANCELLED : STATE_SUCCESS;
+ }
+
+ private void initGTaskList() throws NetworkFailureException {
+ if (mCancelled)
+ return;
+ GTaskClient client = GTaskClient.getInstance();
+ try {
+ JSONArray jsTaskLists = client.getTaskLists();
+
+ // init meta list first
+ mMetaList = null;
+ for (int i = 0; i < jsTaskLists.length(); i++) {
+ JSONObject object = jsTaskLists.getJSONObject(i);
+ String gid = object.getString(GTaskStringUtils.GTASK_JSON_ID);
+ String name = object.getString(GTaskStringUtils.GTASK_JSON_NAME);
+
+ if (name
+ .equals(GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_META)) {
+ mMetaList = new TaskList();
+ mMetaList.setContentByRemoteJSON(object);
+
+ // load meta data
+ JSONArray jsMetas = client.getTaskList(gid);
+ for (int j = 0; j < jsMetas.length(); j++) {
+ object = (JSONObject) jsMetas.getJSONObject(j);
+ MetaData metaData = new MetaData();
+ metaData.setContentByRemoteJSON(object);
+ if (metaData.isWorthSaving()) {
+ mMetaList.addChildTask(metaData);
+ if (metaData.getGid() != null) {
+ mMetaHashMap.put(metaData.getRelatedGid(), metaData);
+ }
+ }
+ }
+ }
+ }
+
+ // create meta list if not existed
+ if (mMetaList == null) {
+ mMetaList = new TaskList();
+ mMetaList.setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX
+ + GTaskStringUtils.FOLDER_META);
+ GTaskClient.getInstance().createTaskList(mMetaList);
+ }
+
+ // init task list
+ for (int i = 0; i < jsTaskLists.length(); i++) {
+ JSONObject object = jsTaskLists.getJSONObject(i);
+ String gid = object.getString(GTaskStringUtils.GTASK_JSON_ID);
+ String name = object.getString(GTaskStringUtils.GTASK_JSON_NAME);
+
+ if (name.startsWith(GTaskStringUtils.MIUI_FOLDER_PREFFIX)
+ && !name.equals(GTaskStringUtils.MIUI_FOLDER_PREFFIX
+ + GTaskStringUtils.FOLDER_META)) {
+ TaskList tasklist = new TaskList();
+ tasklist.setContentByRemoteJSON(object);
+ mGTaskListHashMap.put(gid, tasklist);
+ mGTaskHashMap.put(gid, tasklist);
+
+ // load tasks
+ JSONArray jsTasks = client.getTaskList(gid);
+ for (int j = 0; j < jsTasks.length(); j++) {
+ object = (JSONObject) jsTasks.getJSONObject(j);
+ gid = object.getString(GTaskStringUtils.GTASK_JSON_ID);
+ Task task = new Task();
+ task.setContentByRemoteJSON(object);
+ if (task.isWorthSaving()) {
+ task.setMetaInfo(mMetaHashMap.get(gid));
+ tasklist.addChildTask(task);
+ mGTaskHashMap.put(gid, task);
+ }
+ }
+ }
+ }
+ } catch (JSONException e) {
+ Log.e(TAG, e.toString());
+ e.printStackTrace();
+ throw new ActionFailureException("initGTaskList: handing JSONObject failed");
+ }
+ }
+
+ private void syncContent() throws NetworkFailureException {
+ int syncType;
+ Cursor c = null;
+ String gid;
+ Node node;
+
+ mLocalDeleteIdMap.clear();
+
+ if (mCancelled) {
+ return;
+ }
+
+ // for local deleted note
+ try {
+ c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE,
+ "(type<>? AND parent_id=?)", new String[] {
+ String.valueOf(Notes.TYPE_SYSTEM), String.valueOf(Notes.ID_TRASH_FOLER)
+ }, null);
+ if (c != null) {
+ while (c.moveToNext()) {
+ gid = c.getString(SqlNote.GTASK_ID_COLUMN);
+ node = mGTaskHashMap.get(gid);
+ if (node != null) {
+ mGTaskHashMap.remove(gid);
+ doContentSync(Node.SYNC_ACTION_DEL_REMOTE, node, c);
+ }
+
+ mLocalDeleteIdMap.add(c.getLong(SqlNote.ID_COLUMN));
+ }
+ } else {
+ Log.w(TAG, "failed to query trash folder");
+ }
+ } finally {
+ if (c != null) {
+ c.close();
+ c = null;
+ }
+ }
+
+ // sync folder first
+ syncFolder();
+
+ // for note existing in database
+ try {
+ c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE,
+ "(type=? AND parent_id<>?)", new String[] {
+ String.valueOf(Notes.TYPE_NOTE), String.valueOf(Notes.ID_TRASH_FOLER)
+ }, NoteColumns.TYPE + " DESC");
+ if (c != null) {
+ while (c.moveToNext()) {
+ gid = c.getString(SqlNote.GTASK_ID_COLUMN);
+ node = mGTaskHashMap.get(gid);
+ if (node != null) {
+ mGTaskHashMap.remove(gid);
+ mGidToNid.put(gid, c.getLong(SqlNote.ID_COLUMN));
+ mNidToGid.put(c.getLong(SqlNote.ID_COLUMN), gid);
+ syncType = node.getSyncAction(c);
+ } else {
+ if (c.getString(SqlNote.GTASK_ID_COLUMN).trim().length() == 0) {
+ // local add
+ syncType = Node.SYNC_ACTION_ADD_REMOTE;
+ } else {
+ // remote delete
+ syncType = Node.SYNC_ACTION_DEL_LOCAL;
+ }
+ }
+ doContentSync(syncType, node, c);
+ }
+ } else {
+ Log.w(TAG, "failed to query existing note in database");
+ }
+
+ } finally {
+ if (c != null) {
+ c.close();
+ c = null;
+ }
+ }
+
+ // go through remaining items
+ Iterator> iter = mGTaskHashMap.entrySet().iterator();
+ while (iter.hasNext()) {
+ Map.Entry entry = iter.next();
+ node = entry.getValue();
+ doContentSync(Node.SYNC_ACTION_ADD_LOCAL, node, null);
+ }
+
+ // mCancelled can be set by another thread, so we neet to check one by
+ // one
+ // clear local delete table
+ if (!mCancelled) {
+ if (!DataUtils.batchDeleteNotes(mContentResolver, mLocalDeleteIdMap)) {
+ throw new ActionFailureException("failed to batch-delete local deleted notes");
+ }
+ }
+
+ // refresh local sync id
+ if (!mCancelled) {
+ GTaskClient.getInstance().commitUpdate();
+ refreshLocalSyncId();
+ }
+
+ }
+
+ private void syncFolder() throws NetworkFailureException {
+ Cursor c = null;
+ String gid;
+ Node node;
+ int syncType;
+
+ if (mCancelled) {
+ return;
+ }
+
+ // for root folder
+ try {
+ c = mContentResolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI,
+ Notes.ID_ROOT_FOLDER), SqlNote.PROJECTION_NOTE, null, null, null);
+ if (c != null) {
+ c.moveToNext();
+ gid = c.getString(SqlNote.GTASK_ID_COLUMN);
+ node = mGTaskHashMap.get(gid);
+ if (node != null) {
+ mGTaskHashMap.remove(gid);
+ mGidToNid.put(gid, (long) Notes.ID_ROOT_FOLDER);
+ mNidToGid.put((long) Notes.ID_ROOT_FOLDER, gid);
+ // for system folder, only update remote name if necessary
+ if (!node.getName().equals(
+ GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_DEFAULT))
+ doContentSync(Node.SYNC_ACTION_UPDATE_REMOTE, node, c);
+ } else {
+ doContentSync(Node.SYNC_ACTION_ADD_REMOTE, node, c);
+ }
+ } else {
+ Log.w(TAG, "failed to query root folder");
+ }
+ } finally {
+ if (c != null) {
+ c.close();
+ c = null;
+ }
+ }
+
+ // for call-note folder
+ try {
+ c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE, "(_id=?)",
+ new String[] {
+ String.valueOf(Notes.ID_CALL_RECORD_FOLDER)
+ }, null);
+ if (c != null) {
+ if (c.moveToNext()) {
+ gid = c.getString(SqlNote.GTASK_ID_COLUMN);
+ node = mGTaskHashMap.get(gid);
+ if (node != null) {
+ mGTaskHashMap.remove(gid);
+ mGidToNid.put(gid, (long) Notes.ID_CALL_RECORD_FOLDER);
+ mNidToGid.put((long) Notes.ID_CALL_RECORD_FOLDER, gid);
+ // for system folder, only update remote name if
+ // necessary
+ if (!node.getName().equals(
+ GTaskStringUtils.MIUI_FOLDER_PREFFIX
+ + GTaskStringUtils.FOLDER_CALL_NOTE))
+ doContentSync(Node.SYNC_ACTION_UPDATE_REMOTE, node, c);
+ } else {
+ doContentSync(Node.SYNC_ACTION_ADD_REMOTE, node, c);
+ }
+ }
+ } else {
+ Log.w(TAG, "failed to query call note folder");
+ }
+ } finally {
+ if (c != null) {
+ c.close();
+ c = null;
+ }
+ }
+
+ // for local existing folders
+ try {
+ c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE,
+ "(type=? AND parent_id<>?)", new String[] {
+ String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)
+ }, NoteColumns.TYPE + " DESC");
+ if (c != null) {
+ while (c.moveToNext()) {
+ gid = c.getString(SqlNote.GTASK_ID_COLUMN);
+ node = mGTaskHashMap.get(gid);
+ if (node != null) {
+ mGTaskHashMap.remove(gid);
+ mGidToNid.put(gid, c.getLong(SqlNote.ID_COLUMN));
+ mNidToGid.put(c.getLong(SqlNote.ID_COLUMN), gid);
+ syncType = node.getSyncAction(c);
+ } else {
+ if (c.getString(SqlNote.GTASK_ID_COLUMN).trim().length() == 0) {
+ // local add
+ syncType = Node.SYNC_ACTION_ADD_REMOTE;
+ } else {
+ // remote delete
+ syncType = Node.SYNC_ACTION_DEL_LOCAL;
+ }
+ }
+ doContentSync(syncType, node, c);
+ }
+ } else {
+ Log.w(TAG, "failed to query existing folder");
+ }
+ } finally {
+ if (c != null) {
+ c.close();
+ c = null;
+ }
+ }
+
+ // for remote add folders
+ Iterator> iter = mGTaskListHashMap.entrySet().iterator();
+ while (iter.hasNext()) {
+ Map.Entry entry = iter.next();
+ gid = entry.getKey();
+ node = entry.getValue();
+ if (mGTaskHashMap.containsKey(gid)) {
+ mGTaskHashMap.remove(gid);
+ doContentSync(Node.SYNC_ACTION_ADD_LOCAL, node, null);
+ }
+ }
+
+ if (!mCancelled)
+ GTaskClient.getInstance().commitUpdate();
+ }
+
+ private void doContentSync(int syncType, Node node, Cursor c) throws NetworkFailureException {
+ if (mCancelled) {
+ return;
+ }
+
+ MetaData meta;
+ switch (syncType) {
+ case Node.SYNC_ACTION_ADD_LOCAL:
+ addLocalNode(node);
+ break;
+ case Node.SYNC_ACTION_ADD_REMOTE:
+ addRemoteNode(node, c);
+ break;
+ case Node.SYNC_ACTION_DEL_LOCAL:
+ meta = mMetaHashMap.get(c.getString(SqlNote.GTASK_ID_COLUMN));
+ if (meta != null) {
+ GTaskClient.getInstance().deleteNode(meta);
+ }
+ mLocalDeleteIdMap.add(c.getLong(SqlNote.ID_COLUMN));
+ break;
+ case Node.SYNC_ACTION_DEL_REMOTE:
+ meta = mMetaHashMap.get(node.getGid());
+ if (meta != null) {
+ GTaskClient.getInstance().deleteNode(meta);
+ }
+ GTaskClient.getInstance().deleteNode(node);
+ break;
+ case Node.SYNC_ACTION_UPDATE_LOCAL:
+ updateLocalNode(node, c);
+ break;
+ case Node.SYNC_ACTION_UPDATE_REMOTE:
+ updateRemoteNode(node, c);
+ break;
+ case Node.SYNC_ACTION_UPDATE_CONFLICT:
+ // merging both modifications maybe a good idea
+ // right now just use local update simply
+ updateRemoteNode(node, c);
+ break;
+ case Node.SYNC_ACTION_NONE:
+ break;
+ case Node.SYNC_ACTION_ERROR:
+ default:
+ throw new ActionFailureException("unkown sync action type");
+ }
+ }
+
+ private void addLocalNode(Node node) throws NetworkFailureException {
+ if (mCancelled) {
+ return;
+ }
+
+ SqlNote sqlNote;
+ if (node instanceof TaskList) {
+ if (node.getName().equals(
+ GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_DEFAULT)) {
+ sqlNote = new SqlNote(mContext, Notes.ID_ROOT_FOLDER);
+ } else if (node.getName().equals(
+ GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_CALL_NOTE)) {
+ sqlNote = new SqlNote(mContext, Notes.ID_CALL_RECORD_FOLDER);
+ } else {
+ sqlNote = new SqlNote(mContext);
+ sqlNote.setContent(node.getLocalJSONFromContent());
+ sqlNote.setParentId(Notes.ID_ROOT_FOLDER);
+ }
+ } else {
+ sqlNote = new SqlNote(mContext);
+ JSONObject js = node.getLocalJSONFromContent();
+ try {
+ if (js.has(GTaskStringUtils.META_HEAD_NOTE)) {
+ JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
+ if (note.has(NoteColumns.ID)) {
+ long id = note.getLong(NoteColumns.ID);
+ if (DataUtils.existInNoteDatabase(mContentResolver, id)) {
+ // the id is not available, have to create a new one
+ note.remove(NoteColumns.ID);
+ }
+ }
+ }
+
+ if (js.has(GTaskStringUtils.META_HEAD_DATA)) {
+ JSONArray dataArray = js.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
+ for (int i = 0; i < dataArray.length(); i++) {
+ JSONObject data = dataArray.getJSONObject(i);
+ if (data.has(DataColumns.ID)) {
+ long dataId = data.getLong(DataColumns.ID);
+ if (DataUtils.existInDataDatabase(mContentResolver, dataId)) {
+ // the data id is not available, have to create
+ // a new one
+ data.remove(DataColumns.ID);
+ }
+ }
+ }
+
+ }
+ } catch (JSONException e) {
+ Log.w(TAG, e.toString());
+ e.printStackTrace();
+ }
+ sqlNote.setContent(js);
+
+ Long parentId = mGidToNid.get(((Task) node).getParent().getGid());
+ if (parentId == null) {
+ Log.e(TAG, "cannot find task's parent id locally");
+ throw new ActionFailureException("cannot add local node");
+ }
+ sqlNote.setParentId(parentId.longValue());
+ }
+
+ // create the local node
+ sqlNote.setGtaskId(node.getGid());
+ sqlNote.commit(false);
+
+ // update gid-nid mapping
+ mGidToNid.put(node.getGid(), sqlNote.getId());
+ mNidToGid.put(sqlNote.getId(), node.getGid());
+
+ // update meta
+ updateRemoteMeta(node.getGid(), sqlNote);
+ }
+
+ private void updateLocalNode(Node node, Cursor c) throws NetworkFailureException {
+ if (mCancelled) {
+ return;
+ }
+
+ SqlNote sqlNote;
+ // update the note locally
+ sqlNote = new SqlNote(mContext, c);
+ sqlNote.setContent(node.getLocalJSONFromContent());
+
+ Long parentId = (node instanceof Task) ? mGidToNid.get(((Task) node).getParent().getGid())
+ : new Long(Notes.ID_ROOT_FOLDER);
+ if (parentId == null) {
+ Log.e(TAG, "cannot find task's parent id locally");
+ throw new ActionFailureException("cannot update local node");
+ }
+ sqlNote.setParentId(parentId.longValue());
+ sqlNote.commit(true);
+
+ // update meta info
+ updateRemoteMeta(node.getGid(), sqlNote);
+ }
+
+ private void addRemoteNode(Node node, Cursor c) throws NetworkFailureException {
+ if (mCancelled) {
+ return;
+ }
+
+ SqlNote sqlNote = new SqlNote(mContext, c);
+ Node n;
+
+ // update remotely
+ if (sqlNote.isNoteType()) {
+ Task task = new Task();
+ task.setContentByLocalJSON(sqlNote.getContent());
+
+ String parentGid = mNidToGid.get(sqlNote.getParentId());
+ if (parentGid == null) {
+ Log.e(TAG, "cannot find task's parent tasklist");
+ throw new ActionFailureException("cannot add remote task");
+ }
+ mGTaskListHashMap.get(parentGid).addChildTask(task);
+
+ GTaskClient.getInstance().createTask(task);
+ n = (Node) task;
+
+ // add meta
+ updateRemoteMeta(task.getGid(), sqlNote);
+ } else {
+ TaskList tasklist = null;
+
+ // we need to skip folder if it has already existed
+ String folderName = GTaskStringUtils.MIUI_FOLDER_PREFFIX;
+ if (sqlNote.getId() == Notes.ID_ROOT_FOLDER)
+ folderName += GTaskStringUtils.FOLDER_DEFAULT;
+ else if (sqlNote.getId() == Notes.ID_CALL_RECORD_FOLDER)
+ folderName += GTaskStringUtils.FOLDER_CALL_NOTE;
+ else
+ folderName += sqlNote.getSnippet();
+
+ Iterator> iter = mGTaskListHashMap.entrySet().iterator();
+ while (iter.hasNext()) {
+ Map.Entry entry = iter.next();
+ String gid = entry.getKey();
+ TaskList list = entry.getValue();
+
+ if (list.getName().equals(folderName)) {
+ tasklist = list;
+ if (mGTaskHashMap.containsKey(gid)) {
+ mGTaskHashMap.remove(gid);
+ }
+ break;
+ }
+ }
+
+ // no match we can add now
+ if (tasklist == null) {
+ tasklist = new TaskList();
+ tasklist.setContentByLocalJSON(sqlNote.getContent());
+ GTaskClient.getInstance().createTaskList(tasklist);
+ mGTaskListHashMap.put(tasklist.getGid(), tasklist);
+ }
+ n = (Node) tasklist;
+ }
+
+ // update local note
+ sqlNote.setGtaskId(n.getGid());
+ sqlNote.commit(false);
+ sqlNote.resetLocalModified();
+ sqlNote.commit(true);
+
+ // gid-id mapping
+ mGidToNid.put(n.getGid(), sqlNote.getId());
+ mNidToGid.put(sqlNote.getId(), n.getGid());
+ }
+
+ private void updateRemoteNode(Node node, Cursor c) throws NetworkFailureException {
+ if (mCancelled) {
+ return;
+ }
+
+ SqlNote sqlNote = new SqlNote(mContext, c);
+
+ // update remotely
+ node.setContentByLocalJSON(sqlNote.getContent());
+ GTaskClient.getInstance().addUpdateNode(node);
+
+ // update meta
+ updateRemoteMeta(node.getGid(), sqlNote);
+
+ // move task if necessary
+ if (sqlNote.isNoteType()) {
+ Task task = (Task) node;
+ TaskList preParentList = task.getParent();
+
+ String curParentGid = mNidToGid.get(sqlNote.getParentId());
+ if (curParentGid == null) {
+ Log.e(TAG, "cannot find task's parent tasklist");
+ throw new ActionFailureException("cannot update remote task");
+ }
+ TaskList curParentList = mGTaskListHashMap.get(curParentGid);
+
+ if (preParentList != curParentList) {
+ preParentList.removeChildTask(task);
+ curParentList.addChildTask(task);
+ GTaskClient.getInstance().moveTask(task, preParentList, curParentList);
+ }
+ }
+
+ // clear local modified flag
+ sqlNote.resetLocalModified();
+ sqlNote.commit(true);
+ }
+
+ private void updateRemoteMeta(String gid, SqlNote sqlNote) throws NetworkFailureException {
+ if (sqlNote != null && sqlNote.isNoteType()) {
+ MetaData metaData = mMetaHashMap.get(gid);
+ if (metaData != null) {
+ metaData.setMeta(gid, sqlNote.getContent());
+ GTaskClient.getInstance().addUpdateNode(metaData);
+ } else {
+ metaData = new MetaData();
+ metaData.setMeta(gid, sqlNote.getContent());
+ mMetaList.addChildTask(metaData);
+ mMetaHashMap.put(gid, metaData);
+ GTaskClient.getInstance().createTask(metaData);
+ }
+ }
+ }
+
+ private void refreshLocalSyncId() throws NetworkFailureException {
+ if (mCancelled) {
+ return;
+ }
+
+ // get the latest gtask list
+ mGTaskHashMap.clear();
+ mGTaskListHashMap.clear();
+ mMetaHashMap.clear();
+ initGTaskList();
+
+ Cursor c = null;
+ try {
+ c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE,
+ "(type<>? AND parent_id<>?)", new String[] {
+ String.valueOf(Notes.TYPE_SYSTEM), String.valueOf(Notes.ID_TRASH_FOLER)
+ }, NoteColumns.TYPE + " DESC");
+ if (c != null) {
+ while (c.moveToNext()) {
+ String gid = c.getString(SqlNote.GTASK_ID_COLUMN);
+ Node node = mGTaskHashMap.get(gid);
+ if (node != null) {
+ mGTaskHashMap.remove(gid);
+ ContentValues values = new ContentValues();
+ values.put(NoteColumns.SYNC_ID, node.getLastModified());
+ mContentResolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI,
+ c.getLong(SqlNote.ID_COLUMN)), values, null, null);
+ } else {
+ Log.e(TAG, "something is missed");
+ throw new ActionFailureException(
+ "some local items don't have gid after sync");
+ }
+ }
+ } else {
+ Log.w(TAG, "failed to query local note to refresh sync id");
+ }
+ } finally {
+ if (c != null) {
+ c.close();
+ c = null;
+ }
+ }
+ }
+
+ public String getSyncAccount() {
+ return GTaskClient.getInstance().getSyncAccount().name;
+ }
+
+ public void cancelSync() {
+ mCancelled = true;
+ }
+}
diff --git a/app/src/main/java/net/micode/notes/gtask/remote/GTaskSyncService.java b/app/src/main/java/net/micode/notes/gtask/remote/GTaskSyncService.java
new file mode 100644
index 0000000..cca36f7
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/gtask/remote/GTaskSyncService.java
@@ -0,0 +1,128 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.gtask.remote;
+
+import android.app.Activity;
+import android.app.Service;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.IBinder;
+
+public class GTaskSyncService extends Service {
+ public final static String ACTION_STRING_NAME = "sync_action_type";
+
+ public final static int ACTION_START_SYNC = 0;
+
+ public final static int ACTION_CANCEL_SYNC = 1;
+
+ public final static int ACTION_INVALID = 2;
+
+ public final static String GTASK_SERVICE_BROADCAST_NAME = "net.micode.notes.gtask.remote.gtask_sync_service";
+
+ public final static String GTASK_SERVICE_BROADCAST_IS_SYNCING = "isSyncing";
+
+ public final static String GTASK_SERVICE_BROADCAST_PROGRESS_MSG = "progressMsg";
+
+ private static GTaskASyncTask mSyncTask = null;
+
+ private static String mSyncProgress = "";
+
+ private void startSync() {
+ if (mSyncTask == null) {
+ mSyncTask = new GTaskASyncTask(this, new GTaskASyncTask.OnCompleteListener() {
+ public void onComplete() {
+ mSyncTask = null;
+ sendBroadcast("");
+ stopSelf();
+ }
+ });
+ sendBroadcast("");
+ mSyncTask.execute();
+ }
+ }
+
+ private void cancelSync() {
+ if (mSyncTask != null) {
+ mSyncTask.cancelSync();
+ }
+ }
+
+ @Override
+ public void onCreate() {
+ mSyncTask = null;
+ }
+
+ @Override
+ public int onStartCommand(Intent intent, int flags, int startId) {
+ Bundle bundle = intent.getExtras();
+ if (bundle != null && bundle.containsKey(ACTION_STRING_NAME)) {
+ switch (bundle.getInt(ACTION_STRING_NAME, ACTION_INVALID)) {
+ case ACTION_START_SYNC:
+ startSync();
+ break;
+ case ACTION_CANCEL_SYNC:
+ cancelSync();
+ break;
+ default:
+ break;
+ }
+ return START_STICKY;
+ }
+ return super.onStartCommand(intent, flags, startId);
+ }
+
+ @Override
+ public void onLowMemory() {
+ if (mSyncTask != null) {
+ mSyncTask.cancelSync();
+ }
+ }
+
+ public IBinder onBind(Intent intent) {
+ return null;
+ }
+
+ public void sendBroadcast(String msg) {
+ mSyncProgress = msg;
+ Intent intent = new Intent(GTASK_SERVICE_BROADCAST_NAME);
+ intent.putExtra(GTASK_SERVICE_BROADCAST_IS_SYNCING, mSyncTask != null);
+ intent.putExtra(GTASK_SERVICE_BROADCAST_PROGRESS_MSG, msg);
+ sendBroadcast(intent);
+ }
+
+ public static void startSync(Activity activity) {
+ GTaskManager.getInstance().setActivityContext(activity);
+ Intent intent = new Intent(activity, GTaskSyncService.class);
+ intent.putExtra(GTaskSyncService.ACTION_STRING_NAME, GTaskSyncService.ACTION_START_SYNC);
+ activity.startService(intent);
+ }
+
+ public static void cancelSync(Context context) {
+ Intent intent = new Intent(context, GTaskSyncService.class);
+ intent.putExtra(GTaskSyncService.ACTION_STRING_NAME, GTaskSyncService.ACTION_CANCEL_SYNC);
+ context.startService(intent);
+ }
+
+ public static boolean isSyncing() {
+ return mSyncTask != null;
+ }
+
+ public static String getProgressString() {
+ return mSyncProgress;
+ }
+}
diff --git a/app/src/main/java/net/micode/notes/model/Note.java b/app/src/main/java/net/micode/notes/model/Note.java
new file mode 100644
index 0000000..e4e7339
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/model/Note.java
@@ -0,0 +1,268 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.model;
+import android.content.ContentProviderOperation;
+import android.content.ContentProviderResult;
+import android.content.ContentUris;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.OperationApplicationException;
+import android.net.Uri;
+import android.os.RemoteException;
+import android.util.Log;
+
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.CallNote;
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.data.Notes.TextNote;
+
+import java.util.ArrayList;
+
+
+public class Note {
+ private ContentValues mNoteDiffValues;//声明了一个私有成员变量mNoteDiffValues，用于存储笔记的差异数据
+ private NoteData mNoteData;
+ private static final String TAG = "Note";// 定义了一个静态常量TAG，用于在日志输出时标记日志来源
+ /**
+ * Create a new note id for adding a new note to databases为添加新笔记到数据库中创建一个新的笔记id
+ */
+ public static synchronized long getNewNoteId(Context context, long folderId) {
+ // Create a new note in the database（在数据库中创建一个新笔记）
+ ContentValues values = new ContentValues();// 创建一个ContentValues对象，用于存储要添加的笔记数据
+ long createdTime = System.currentTimeMillis(); // 获取当前时间戳，作为笔记的创建时间和修改时间
+ values.put(NoteColumns.CREATED_DATE, createdTime);// 将笔记的创建时间存储到ContentValues对象中
+ values.put(NoteColumns.MODIFIED_DATE, createdTime);// 将笔记的修改时间存储到ContentValues对象中
+ values.put(NoteColumns.TYPE, Notes.TYPE_NOTE);// 将笔记的类型设置为“普通便签”
+ values.put(NoteColumns.LOCAL_MODIFIED, 1);// 将笔记的“本地修改”标志设置为“已修改”
+ values.put(NoteColumns.PARENT_ID, folderId);// 将笔记的父文件夹id存储到ContentValues对象中
+ Uri uri = context.getContentResolver().insert(Notes.CONTENT_NOTE_URI, values);// 将ContentValues对象插入到数据库中，返回插入的笔记的Uri地址
+
+ long noteId = 0; // 定义一个变量，用于存储新创建的笔记id
+ try {
+ noteId = Long.valueOf(uri.getPathSegments().get(1)); // 从Uri地址中提取新创建的笔记id
+ } catch (NumberFormatException e) { // 如果提取失败，记录错误日志
+ Log.e(TAG, "Get note id error :" + e.toString());
+ noteId = 0;
+ }
+ if (noteId == -1) {// 如果便签id异常，抛出异常
+ throw new IllegalStateException("Wrong note id:" + noteId);
+ }
+ return noteId;// 返回新创建的便签id
+ }
+
+ public Note() {
+ mNoteDiffValues = new ContentValues();// 创建一个ContentValues对象，用于存储便签的差异数据
+ mNoteData = new NoteData();// 创建一个NoteData对象，用于存储便签的详细数据
+ }
+
+ public void setNoteValue(String key, String value) {
+ mNoteDiffValues.put(key, value);// 将便签的属性名和属性值存储到ContentValues对象中
+ mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);// 将便签的“本地修改”标志设置为“已修改”
+ mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); // 将便签的修改时间设置为当前时间戳
+ }
+
+ public void setTextData(String key, String value) {
+ mNoteData.setTextData(key, value);
+ }//将便签的文本数据（如标题、正文等）存储到NoteData对象中
+
+ public void setTextDataId(long id) {
+ mNoteData.setTextDataId(id);
+ }// 将便签的文本数据的id存储到NoteData对象中
+
+ public long getTextDataId() {
+ return mNoteData.mTextDataId;
+ }// 返回便签的文本数据的id
+
+ public void setCallDataId(long id) {
+ mNoteData.setCallDataId(id);
+ }// 将便签的通讯数据的id存储到NoteData对象中
+
+ public void setCallData(String key, String value) {
+ mNoteData.setCallData(key, value);
+ }// 将便签的通讯数据（如联系人、电话号码等）存储到NoteData对象中
+
+ public boolean isLocalModified() {
+ return mNoteDiffValues.size() > 0 || mNoteData.isLocalModified();
+ }// 检查便签是否被修改过，如果便签的差异数据或详细数据被修改过，则返回true，否则返回false。
+
+ public boolean syncNote(Context context, long noteId) {
+ if (noteId <= 0) {
+ throw new IllegalArgumentException("Wrong note id:" + noteId);
+ }// 如果便签id异常，抛出异常
+
+ if (!isLocalModified()) {
+ return true;
+ }// 如果便签没有被修改，直接返回true
+
+ /**
+ * In theory, once data changed, the note should be updated on {@link NoteColumns#LOCAL_MODIFIED} and
+ * {@link NoteColumns#MODIFIED_DATE}. For data safety, though update note fails, we also update the
+ * note data info（理论上，一旦数据发生更改，应该更新{@link NoteColumns#LOCAL_MODIFIED}和{@link NoteColumns#MODIFIED_DATE}。
+ * 为了数据安全，虽然更新笔记失败，但仍然会更新笔记数据）
+ */
+ if (context.getContentResolver().update(// 更新便签数据
+ ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), mNoteDiffValues, null,
+ null) == 0) {
+ Log.e(TAG, "Update note error, should not happen");// 如果更新失败，记录错误日志
+ // Do not return, fall through没有返回就是失败
+ }
+ mNoteDiffValues.clear();// 清空便签的差异数据
+
+ if (mNoteData.isLocalModified()// 更新便签的详细数据
+ && (mNoteData.pushIntoContentResolver(context, noteId) == null)) {
+ return false;// 如果更新失败，返回false
+ }
+
+ return true;// 更新成功，返回true
+ }
+
+ private class NoteData {// 定义私有字段
+ private long mTextDataId;// 文本数据的 ID
+
+ private ContentValues mTextDataValues;// 文本数据的 ContentValues 对象
+
+ private long mCallDataId;// 通话数据的 ID
+
+ private ContentValues mCallDataValues;// 通话数据的 ContentValues 对象
+
+ private static final String TAG = "NoteData";// 定义静态常量TAG
+
+ public NoteData() {// 定义构造函数
+ mTextDataValues = new ContentValues(); // 初始化文本数据的 ContentValues 对象
+ mCallDataValues = new ContentValues();// 初始化通话数据的 ContentValues 对象
+ mTextDataId = 0;// 初始化文本数据的 ID
+ mCallDataId = 0;// 初始化通话数据的 ID
+ }
+
+ boolean isLocalModified() {// 定义方法 isLocalModified，判断数据是否被修改过
+ return mTextDataValues.size() > 0 || mCallDataValues.size() > 0;
+ }
+
+ void setTextDataId(long id) { // 定义方法 setTextDataId，设置文本数据的 ID
+ if(id <= 0) {
+ throw new IllegalArgumentException("Text data id should larger than 0");
+ }
+ mTextDataId = id;
+ }
+
+ void setCallDataId(long id) {// 定义方法 setCallDataId，设置通话数据的 ID
+ if (id <= 0) {
+ throw new IllegalArgumentException("Call data id should larger than 0");
+ }
+ mCallDataId = id;
+ }
+
+ void setCallData(String key, String value) {// 定义方法 setCallData，用于设置通话数据的键值对
+ mCallDataValues.put(key, value);// 将键值对存储在 mCallDataValues 中
+ mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);// 标记数据已被修改
+ mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); // 记录修改时间
+ }
+
+ void setTextData(String key, String value) {// 定义方法 setTextData，用于设置文本数据的键值对
+ mTextDataValues.put(key, value);// 将键值对存储在 mTextDataValues 中
+ mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1); // 标记数据已被修改
+ mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());// 记录修改时间
+ }
+
+ /**
+ * 这段代码定义了一个方法 pushIntoContentResolver，用于将笔记数据保存到 ContentProvider 中。
+ * 该方法接受两个参数：context 表示上下文，noteId 表示笔记的 ID。
+ * 运行时首先会检查传入的参数是否合法，如果 noteId 小于等于 0，则会抛出非法参数异常。
+ * 接下来，该方法会创建一个 ContentProviderOperation 列表，用于存储要执行的操作。
+ * 然后，该方法会检查 mTextDataValues 和 mCallDataValues 这两个成员变量中是否存储了文本数据和通话数据，
+ * 如果有，则会将它们保存到 ContentProvider 中。
+ * 如果 mTextDataId 或 mCallDataId 不为 0，则会执行更新操作，否则会执行插入操作。
+ * 最后，如果操作列表中有操作，则会通过 ContentResolver 将操作批量提交到 ContentProvider 中。
+ * 如果提交操作成功，则会返回笔记的 URI，否则会返回 null。
+ * @param context
+ * @param noteId
+ * @return
+ */
+ Uri pushIntoContentResolver(Context context, long noteId) {
+ /**
+ * Check for safety（检查是否安全）
+ */
+ if (noteId <= 0) {
+ throw new IllegalArgumentException("Wrong note id:" + noteId);
+ }
+
+ ArrayList operationList = new ArrayList();
+ ContentProviderOperation.Builder builder = null;// 创建一个ContentProviderOperation列表
+
+ if(mTextDataValues.size() > 0) {// 如果有文本数据需要更新或添加
+ mTextDataValues.put(DataColumns.NOTE_ID, noteId);// 设置文本数据的noteId
+ if (mTextDataId == 0) {
+ mTextDataValues.put(DataColumns.MIME_TYPE, TextNote.CONTENT_ITEM_TYPE);// 如果文本数据的id为0，表示需要添加新的文本数据
+ Uri uri = context.getContentResolver().insert(Notes.CONTENT_DATA_URI,
+ mTextDataValues);// 插入新的文本数据到数据表中
+ try {// 从插入结果中获取新插入数据的id
+ setTextDataId(Long.valueOf(uri.getPathSegments().get(1)));
+ } catch (NumberFormatException e) {
+ Log.e(TAG, "Insert new text data fail with noteId" + noteId);
+ mTextDataValues.clear();
+ return null;// 插入失败，清空数据并返回null
+ }
+ } else {
+ builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId(
+ Notes.CONTENT_DATA_URI, mTextDataId));
+ builder.withValues(mTextDataValues);
+ operationList.add(builder.build());
+ } // 如果文本数据的id不为0，表示需要更新已有的文本数据
+ mTextDataValues.clear();// 清空文本数据的值
+ }
+
+ if(mCallDataValues.size() > 0) {// 如果有电话数据需要更新或添加
+ mCallDataValues.put(DataColumns.NOTE_ID, noteId);// 设置电话数据的noteId
+ if (mCallDataId == 0) {// 如果电话数据的id为0，表示需要添加新的电话数据
+ mCallDataValues.put(DataColumns.MIME_TYPE, CallNote.CONTENT_ITEM_TYPE);
+ Uri uri = context.getContentResolver().insert(Notes.CONTENT_DATA_URI,
+ mCallDataValues);// 插入新的电话数据到数据表中
+ try { // 从插入结果中获取新插入数据的id
+ setCallDataId(Long.valueOf(uri.getPathSegments().get(1)));
+ } catch (NumberFormatException e) {
+ Log.e(TAG, "Insert new call data fail with noteId" + noteId);
+ mCallDataValues.clear();
+ return null;// 插入失败，清空数据并返回null
+ }
+ } else {
+ builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId(
+ Notes.CONTENT_DATA_URI, mCallDataId));
+ builder.withValues(mCallDataValues);
+ operationList.add(builder.build());
+ } // 如果电话数据的id不为0，表示需要更新已有的电话数据
+ mCallDataValues.clear(); // 清空电话数据的值
+ }
+
+ if (operationList.size() > 0) { // 如果有操作需要执行
+ try {// 执行操作并获取结果
+ ContentProviderResult[] results = context.getContentResolver().applyBatch(
+ Notes.AUTHORITY, operationList);// 返回操作结果的Uri
+ return (results == null || results.length == 0 || results[0] == null) ? null
+ : ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId);
+ } catch (RemoteException e) {
+ Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+ return null; // 操作失败，返回null并记录日志
+ } catch (OperationApplicationException e) {
+ Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+ return null;// 操作失败，返回null并记录日志
+ }
+ }
+ return null;
+ }
+ }
+}
diff --git a/app/src/main/java/net/micode/notes/model/WorkingNote.java b/app/src/main/java/net/micode/notes/model/WorkingNote.java
new file mode 100644
index 0000000..fbb91fe
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/model/WorkingNote.java
@@ -0,0 +1,368 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.model;
+
+import android.appwidget.AppWidgetManager;
+import android.content.ContentUris;
+import android.content.Context;
+import android.database.Cursor;
+import android.text.TextUtils;
+import android.util.Log;
+
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.CallNote;
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.DataConstants;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.data.Notes.TextNote;
+import net.micode.notes.tool.ResourceParser.NoteBgResources;
+
+
+public class WorkingNote {
+ // Note for the working note（工作笔记类)
+ private Note mNote;// 笔记
+ // Note Id/笔记ID
+ private long mNoteId;
+ // Note content笔记内容
+ private String mContent;
+ // Note mode笔记模式
+ private int mMode;
+
+ private long mAlertDate;// 提醒日期
+
+ private long mModifiedDate;// 修改日期
+
+ private int mBgColorId;// 背景颜色ID
+
+ private int mWidgetId;// 小部件ID
+
+ private int mWidgetType;// 小部件类型
+
+ private long mFolderId;// 文件夹ID
+
+ private Context mContext;// 上下文
+
+ private static final String TAG = "WorkingNote";// 标签
+
+ private boolean mIsDeleted;// 是否已删除
+
+ private NoteSettingChangedListener mNoteSettingStatusListener;// 笔记设置改变监听器
+
+ public static final String[] DATA_PROJECTION = new String[] {// 查询数据时需要返回的列名数组
+ DataColumns.ID,// ID列
+ DataColumns.CONTENT, // 内容列
+ DataColumns.MIME_TYPE, // MIME类型列
+ DataColumns.DATA1,
+ DataColumns.DATA2,
+ DataColumns.DATA3,
+ DataColumns.DATA4,
+ };
+
+ public static final String[] NOTE_PROJECTION = new String[] {
+ NoteColumns.PARENT_ID,
+ NoteColumns.ALERTED_DATE,
+ NoteColumns.BG_COLOR_ID,
+ NoteColumns.WIDGET_ID,
+ NoteColumns.WIDGET_TYPE,
+ NoteColumns.MODIFIED_DATE
+ };
+
+ private static final int DATA_ID_COLUMN = 0;
+
+ private static final int DATA_CONTENT_COLUMN = 1;
+
+ private static final int DATA_MIME_TYPE_COLUMN = 2;
+
+ private static final int DATA_MODE_COLUMN = 3;
+
+ private static final int NOTE_PARENT_ID_COLUMN = 0;
+
+ private static final int NOTE_ALERTED_DATE_COLUMN = 1;
+
+ private static final int NOTE_BG_COLOR_ID_COLUMN = 2;
+
+ private static final int NOTE_WIDGET_ID_COLUMN = 3;
+
+ private static final int NOTE_WIDGET_TYPE_COLUMN = 4;
+
+ private static final int NOTE_MODIFIED_DATE_COLUMN = 5;
+
+ // New note construct
+ private WorkingNote(Context context, long folderId) {
+ mContext = context;
+ mAlertDate = 0;
+ mModifiedDate = System.currentTimeMillis();
+ mFolderId = folderId;
+ mNote = new Note();
+ mNoteId = 0;
+ mIsDeleted = false;
+ mMode = 0;
+ mWidgetType = Notes.TYPE_WIDGET_INVALIDE;
+ }
+
+ // Existing note construct
+ private WorkingNote(Context context, long noteId, long folderId) {
+ mContext = context;
+ mNoteId = noteId;
+ mFolderId = folderId;
+ mIsDeleted = false;
+ mNote = new Note();
+ loadNote();
+ }
+
+ private void loadNote() {
+ Cursor cursor = mContext.getContentResolver().query(
+ ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mNoteId), NOTE_PROJECTION, null,
+ null, null);
+
+ if (cursor != null) {
+ if (cursor.moveToFirst()) {
+ mFolderId = cursor.getLong(NOTE_PARENT_ID_COLUMN);
+ mBgColorId = cursor.getInt(NOTE_BG_COLOR_ID_COLUMN);
+ mWidgetId = cursor.getInt(NOTE_WIDGET_ID_COLUMN);
+ mWidgetType = cursor.getInt(NOTE_WIDGET_TYPE_COLUMN);
+ mAlertDate = cursor.getLong(NOTE_ALERTED_DATE_COLUMN);
+ mModifiedDate = cursor.getLong(NOTE_MODIFIED_DATE_COLUMN);
+ }
+ cursor.close();
+ } else {
+ Log.e(TAG, "No note with id:" + mNoteId);
+ throw new IllegalArgumentException("Unable to find note with id " + mNoteId);
+ }
+ loadNoteData();
+ }
+
+ private void loadNoteData() {
+ Cursor cursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, DATA_PROJECTION,
+ DataColumns.NOTE_ID + "=?", new String[] {
+ String.valueOf(mNoteId)
+ }, null);
+
+ if (cursor != null) {
+ if (cursor.moveToFirst()) {
+ do {
+ String type = cursor.getString(DATA_MIME_TYPE_COLUMN);
+ if (DataConstants.NOTE.equals(type)) {
+ mContent = cursor.getString(DATA_CONTENT_COLUMN);
+ mMode = cursor.getInt(DATA_MODE_COLUMN);
+ mNote.setTextDataId(cursor.getLong(DATA_ID_COLUMN));
+ } else if (DataConstants.CALL_NOTE.equals(type)) {
+ mNote.setCallDataId(cursor.getLong(DATA_ID_COLUMN));
+ } else {
+ Log.d(TAG, "Wrong note type with type:" + type);
+ }
+ } while (cursor.moveToNext());
+ }
+ cursor.close();
+ } else {
+ Log.e(TAG, "No data with id:" + mNoteId);
+ throw new IllegalArgumentException("Unable to find note's data with id " + mNoteId);
+ }
+ }
+
+ public static WorkingNote createEmptyNote(Context context, long folderId, int widgetId,
+ int widgetType, int defaultBgColorId) {
+ WorkingNote note = new WorkingNote(context, folderId);
+ note.setBgColorId(defaultBgColorId);
+ note.setWidgetId(widgetId);
+ note.setWidgetType(widgetType);
+ return note;
+ }
+
+ public static WorkingNote load(Context context, long id) {
+ return new WorkingNote(context, id, 0);
+ }
+
+ public synchronized boolean saveNote() {
+ if (isWorthSaving()) {
+ if (!existInDatabase()) {
+ if ((mNoteId = Note.getNewNoteId(mContext, mFolderId)) == 0) {
+ Log.e(TAG, "Create new note fail with id:" + mNoteId);
+ return false;
+ }
+ }
+
+ mNote.syncNote(mContext, mNoteId);
+
+ /**
+ * Update widget content if there exist any widget of this note
+ */
+ if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID
+ && mWidgetType != Notes.TYPE_WIDGET_INVALIDE
+ && mNoteSettingStatusListener != null) {
+ mNoteSettingStatusListener.onWidgetChanged();
+ }
+ return true;
+ } else {
+ return false;
+ }
+ }
+
+ public boolean existInDatabase() {
+ return mNoteId > 0;
+ }
+
+ private boolean isWorthSaving() {
+ if (mIsDeleted || (!existInDatabase() && TextUtils.isEmpty(mContent))
+ || (existInDatabase() && !mNote.isLocalModified())) {
+ return false;
+ } else {
+ return true;
+ }
+ }
+
+ public void setOnSettingStatusChangedListener(NoteSettingChangedListener l) {
+ mNoteSettingStatusListener = l;
+ }
+
+ public void setAlertDate(long date, boolean set) {
+ if (date != mAlertDate) {
+ mAlertDate = date;
+ mNote.setNoteValue(NoteColumns.ALERTED_DATE, String.valueOf(mAlertDate));
+ }
+ if (mNoteSettingStatusListener != null) {
+ mNoteSettingStatusListener.onClockAlertChanged(date, set);
+ }
+ }
+
+ public void markDeleted(boolean mark) {
+ mIsDeleted = mark;
+ if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID
+ && mWidgetType != Notes.TYPE_WIDGET_INVALIDE && mNoteSettingStatusListener != null) {
+ mNoteSettingStatusListener.onWidgetChanged();
+ }
+ }
+
+ public void setBgColorId(int id) {
+ if (id != mBgColorId) {
+ mBgColorId = id;
+ if (mNoteSettingStatusListener != null) {
+ mNoteSettingStatusListener.onBackgroundColorChanged();
+ }
+ mNote.setNoteValue(NoteColumns.BG_COLOR_ID, String.valueOf(id));
+ }
+ }
+
+ public void setCheckListMode(int mode) {
+ if (mMode != mode) {
+ if (mNoteSettingStatusListener != null) {
+ mNoteSettingStatusListener.onCheckListModeChanged(mMode, mode);
+ }
+ mMode = mode;
+ mNote.setTextData(TextNote.MODE, String.valueOf(mMode));
+ }
+ }
+
+ public void setWidgetType(int type) {
+ if (type != mWidgetType) {
+ mWidgetType = type;
+ mNote.setNoteValue(NoteColumns.WIDGET_TYPE, String.valueOf(mWidgetType));
+ }
+ }
+
+ public void setWidgetId(int id) {
+ if (id != mWidgetId) {
+ mWidgetId = id;
+ mNote.setNoteValue(NoteColumns.WIDGET_ID, String.valueOf(mWidgetId));
+ }
+ }
+
+ public void setWorkingText(String text) {
+ if (!TextUtils.equals(mContent, text)) {
+ mContent = text;
+ mNote.setTextData(DataColumns.CONTENT, mContent);
+ }
+ }
+
+ public void convertToCallNote(String phoneNumber, long callDate) {
+ mNote.setCallData(CallNote.CALL_DATE, String.valueOf(callDate));
+ mNote.setCallData(CallNote.PHONE_NUMBER, phoneNumber);
+ mNote.setNoteValue(NoteColumns.PARENT_ID, String.valueOf(Notes.ID_CALL_RECORD_FOLDER));
+ }
+
+ public boolean hasClockAlert() {
+ return (mAlertDate > 0 ? true : false);
+ }
+
+ public String getContent() {
+ return mContent;
+ }
+
+ public long getAlertDate() {
+ return mAlertDate;
+ }
+
+ public long getModifiedDate() {
+ return mModifiedDate;
+ }
+
+ public int getBgColorResId() {
+ return NoteBgResources.getNoteBgResource(mBgColorId);
+ }
+
+ public int getBgColorId() {
+ return mBgColorId;
+ }
+
+ public int getTitleBgResId() {
+ return NoteBgResources.getNoteTitleBgResource(mBgColorId);
+ }
+
+ public int getCheckListMode() {
+ return mMode;
+ }
+
+ public long getNoteId() {
+ return mNoteId;
+ }
+
+ public long getFolderId() {
+ return mFolderId;
+ }
+
+ public int getWidgetId() {
+ return mWidgetId;
+ }
+
+ public int getWidgetType() {
+ return mWidgetType;
+ }
+
+ public interface NoteSettingChangedListener {
+ /**
+ * Called when the background color of current note has just changed
+ */
+ void onBackgroundColorChanged();
+
+ /**
+ * Called when user set clock
+ */
+ void onClockAlertChanged(long date, boolean set);
+
+ /**
+ * Call when user create note from widget
+ */
+ void onWidgetChanged();
+
+ /**
+ * Call when switch between check list mode and normal mode
+ * @param oldMode is previous mode before change
+ * @param newMode is new mode
+ */
+ void onCheckListModeChanged(int oldMode, int newMode);
+ }
+}
diff --git a/app/src/main/java/net/micode/notes/tool/BackupUtils.java b/app/src/main/java/net/micode/notes/tool/BackupUtils.java
new file mode 100644
index 0000000..8dbec2e
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/tool/BackupUtils.java
@@ -0,0 +1,387 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.tool;
+
+import android.content.Context;
+import android.database.Cursor;
+import android.os.Environment;
+import android.text.TextUtils;
+import android.text.format.DateFormat;
+import android.util.Log;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.DataConstants;
+import net.micode.notes.data.Notes.NoteColumns;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.PrintStream;
+
+
+public class BackupUtils {
+ private static final String TAG = "BackupUtils";
+ // Singleton stuff
+ private static BackupUtils sInstance;
+
+ public static synchronized BackupUtils getInstance(Context context) {
+ if (sInstance == null) {
+ sInstance = new BackupUtils(context);
+ }
+ return sInstance;
+ }
+/* `TAG` 是一个 String 常量，用于标识日志输出的 tag。
+ `sInstance` 是一个静态变量，用于存储单例实例。
+ `getInstance()` 是一个静态方法，通过传入一个 `Context` 参数获取 `BackupUtils` 的单例实例。
+ 这里使用了双重检查锁定来确保线程安全。
+*/
+
+ /**
+ * Following states are signs to represents backup or restore（以下是表示备份或恢复的符号）
+ * status
+ */
+ // Currently, the sdcard is not mounted
+ public static final int STATE_SD_CARD_UNMOUONTED = 0;
+ // The backup file not exist(备份文件不存在）
+ public static final int STATE_BACKUP_FILE_NOT_EXIST = 1;
+ // The data is not well formated, may be changed by other programs（数据格式不正确可能被其他程序更改）
+ public static final int STATE_DATA_DESTROIED = 2;
+ // Some run-time exception which causes restore or backup fails（导致备份或还原失败的默写运行异常）
+ public static final int STATE_SYSTEM_ERROR = 3;
+ // Backup or restore success（备份或还原成功）
+ public static final int STATE_SUCCESS = 4;
+
+ private TextExport mTextExport;//实例化对象
+
+ private BackupUtils(Context context) {
+ mTextExport = new TextExport(context);
+ }
+
+ private static boolean externalStorageAvailable() {
+ return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
+ }
+
+ public int exportToText() {
+ return mTextExport.exportToText();
+ }//这是一个 public 方法，用于将数据导出为文本，并返回一个整数值。
+
+ public String getExportedTextFileName() {
+ return mTextExport.mFileName;
+ }//这是一个 public 方法，用于获取导出的文本文件名。
+
+ public String getExportedTextFileDir() {
+ return mTextExport.mFileDirectory;
+ }//这是一个 public 方法，用于获取导出的文本文件所在的目录。
+
+ private static class TextExport {
+ private static final String[] NOTE_PROJECTION = {
+ NoteColumns.ID,
+ NoteColumns.MODIFIED_DATE,
+ NoteColumns.SNIPPET,
+ NoteColumns.TYPE
+ };//这是一个私有的静态内部类，用于完成数据导出的操作。
+
+
+ private static final int NOTE_COLUMN_ID = 0;
+
+ private static final int NOTE_COLUMN_MODIFIED_DATE = 1;
+
+ private static final int NOTE_COLUMN_SNIPPET = 2;
+
+ private static final String[] DATA_PROJECTION = {
+ DataColumns.CONTENT,
+ DataColumns.MIME_TYPE,
+ DataColumns.DATA1,
+ DataColumns.DATA2,
+ DataColumns.DATA3,
+ DataColumns.DATA4,
+ };
+
+ private static final int DATA_COLUMN_CONTENT = 0;
+
+ private static final int DATA_COLUMN_MIME_TYPE = 1;
+
+ private static final int DATA_COLUMN_CALL_DATE = 2;
+
+ private static final int DATA_COLUMN_PHONE_NUMBER = 4;
+ // 定义了多个常量，用于操作笔记和数据的列索引
+
+ private final String [] TEXT_FORMAT;
+ private static final int FORMAT_FOLDER_NAME = 0;
+ private static final int FORMAT_NOTE_DATE = 1;
+ private static final int FORMAT_NOTE_CONTENT = 2;
+ // 定义了一个字符串数组 TEXT_FORMAT，其中存储了导出笔记时的文件格式
+
+ private Context mContext;
+ private String mFileName;
+ private String mFileDirectory;
+ // 定义了 Context mContext、String mFileName、String mFileDirectory 三个变量
+ // mContext 存储了当前上下文，mFileName 存储了文件名，mFileDirectory 存储了文件夹路径
+
+ public TextExport(Context context) {
+ TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note);
+ mContext = context;
+ mFileName = "";
+ mFileDirectory = "";// 构造函数，初始化了 TEXT_FORMAT、mContext、mFileName 和 mFileDirectory
+ }
+
+ private String getFormat(int id) {
+ return TEXT_FORMAT[id];
+ }// getFormat 方法返回 TEXT_FORMAT 数组中指定 id 的字符串
+
+ /**
+ * Export the folder identified by folder id to text
+ * (exportFolderToText 方法用于将指定文件夹下的笔记导出到文本中)
+ */
+ private void exportFolderToText(String folderId, PrintStream ps) {
+ // Query notes belong to this folder// 查询属于该文件夹的笔记
+ Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI,
+ NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[] {
+ folderId
+ }, null);
+
+ if (notesCursor != null) {
+ if (notesCursor.moveToFirst()) {
+ do {
+ // Print note's last modified date // 输出笔记的最后修改日期
+ ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format(
+ mContext.getString(R.string.format_datetime_mdhm),
+ notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE))));
+ // Query data belong to this note // 查询属于该笔记的数据
+ String noteId = notesCursor.getString(NOTE_COLUMN_ID);
+ exportNoteToText(noteId, ps);
+ } while (notesCursor.moveToNext());
+ }
+ notesCursor.close();
+ }
+ }
+
+ /**
+ * Export note identified by id to a print stream
+ */
+ private void exportNoteToText(String noteId, PrintStream ps) {
+ Cursor dataCursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI,
+ DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] {
+ noteId
+ }, null);// exportNoteToText 方法用于将指定笔记的数据导出到文本中
+
+ if (dataCursor != null) {
+ if (dataCursor.moveToFirst()) {
+ do {
+ String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE);
+ if (DataConstants.CALL_NOTE.equals(mimeType)) {
+ // Print phone number // 输出电话号码
+ String phoneNumber = dataCursor.getString(DATA_COLUMN_PHONE_NUMBER);
+ long callDate = dataCursor.getLong(DATA_COLUMN_CALL_DATE);
+ String location = dataCursor.getString(DATA_COLUMN_CONTENT);
+
+ if (!TextUtils.isEmpty(phoneNumber)) {
+ ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
+ phoneNumber));
+ }
+ // Print call date// 输出通话日期
+ ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), DateFormat
+ .format(mContext.getString(R.string.format_datetime_mdhm),
+ callDate)));
+ // Print call attachment location // 输出通话附件位置
+ if (!TextUtils.isEmpty(location)) {
+ ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
+ location));
+ }
+ } else if (DataConstants.NOTE.equals(mimeType)) {
+ String content = dataCursor.getString(DATA_COLUMN_CONTENT);
+ if (!TextUtils.isEmpty(content)) {
+ ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
+ content));
+ }
+ }
+ } while (dataCursor.moveToNext());
+ }
+ dataCursor.close();
+ }
+ // print a line separator between note// 在导出每个笔记后输出一个分隔符
+ try {
+ ps.write(new byte[] {
+ Character.LINE_SEPARATOR, Character.LETTER_NUMBER
+ });
+ } catch (IOException e) {
+ Log.e(TAG, e.toString());
+ }
+ }
+
+ /**
+ * Note will be exported as text which is user readable
+ */
+ public int exportToText() {
+ if (!externalStorageAvailable()) {
+ Log.d(TAG, "Media was not mounted");
+ return STATE_SD_CARD_UNMOUONTED;
+ }/*这段代码的作用是向指定的PrintStream对象中写入一个分隔符。它使用了Java中的byte数组，其中包含了两个特殊的字符：Character.LINE_SEPARATOR和Character.LETTER_NUMBER。
+
+ Character.LINE_SEPARATOR表示平台的行分隔符，其值因平台而异。例如，在Windows中，它的值是"\r\n"，在Unix/Linux中，它的值是"\n"。
+
+ Character.LETTER_NUMBER是一个没有实际意义的字符，它只是被用来作为分隔符的一部分。
+
+ 当这个byte数组被写入PrintStream对象时，它会在文本中插入一个分隔符，以便在文本中区分不同的笔记。如果写入过程中发生IOException，那么会在Logcat中输出相应的错误信息。*/
+
+ PrintStream ps = getExportToTextPrintStream();
+ if (ps == null) {
+ Log.e(TAG, "get print stream error");
+ return STATE_SYSTEM_ERROR;
+ }//这段代码中的 getExportToTextPrintStream() 是一个自定义方法，它返回一个 PrintStream 对象，该对象用于将笔记数据导出到文本文件中
+ // First export folder and its notes//“首先导出文件夹及其包含的笔记”
+ Cursor folderCursor = mContext.getContentResolver().query(
+ Notes.CONTENT_NOTE_URI,
+ NOTE_PROJECTION,
+ "(" + NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER + " AND "
+ + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + ") OR "
+ + NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER, null, null);
+
+ if (folderCursor != null) {
+ if (folderCursor.moveToFirst()) {
+ do {
+ // Print folder's name
+ String folderName = "";
+ if(folderCursor.getLong(NOTE_COLUMN_ID) == Notes.ID_CALL_RECORD_FOLDER) {
+ folderName = mContext.getString(R.string.call_record_folder_name);
+ } else {
+ folderName = folderCursor.getString(NOTE_COLUMN_SNIPPET);
+ }
+ if (!TextUtils.isEmpty(folderName)) {
+ ps.println(String.format(getFormat(FORMAT_FOLDER_NAME), folderName));
+ }
+ String folderId = folderCursor.getString(NOTE_COLUMN_ID);
+ exportFolderToText(folderId, ps);
+ } while (folderCursor.moveToNext());
+ }
+ folderCursor.close();
+ }/*这段代码的作用是导出所有文件夹及其包含的笔记。
+
+ 首先，通过调用 ContentResolver 的 query() 方法查询所有的文件夹和 Call Record 文件夹，同时排除回收站中的笔记，将结果保存在 Cursor 对象 folderCursor 中。
+
+ 接着，通过遍历 folderCursor 中的所有记录，获取每个文件夹的名称和ID，并将其写入到输出流 ps 中。如果当前文件夹是 Call Record 文件夹，则使用字符串资源文件中的值作为文件夹的名称*/
+
+ // Export notes in root's folder
+ Cursor noteCursor = mContext.getContentResolver().query(
+ Notes.CONTENT_NOTE_URI,
+ NOTE_PROJECTION,
+ NoteColumns.TYPE + "=" + +Notes.TYPE_NOTE + " AND " + NoteColumns.PARENT_ID
+ + "=0", null, null);
+
+ if (noteCursor != null) {
+ if (noteCursor.moveToFirst()) {
+ do {
+ ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format(
+ mContext.getString(R.string.format_datetime_mdhm),
+ noteCursor.getLong(NOTE_COLUMN_MODIFIED_DATE))));
+ // Query data belong to this note
+ String noteId = noteCursor.getString(NOTE_COLUMN_ID);
+ exportNoteToText(noteId, ps);
+ } while (noteCursor.moveToNext());
+ }
+ noteCursor.close();
+ }
+ ps.close();
+
+ return STATE_SUCCESS;
+ }/*这段代码的作用是导出根文件夹中的所有笔记。
+
+ 首先，通过调用 ContentResolver 的 query() 方法查询根文件夹中的所有笔记，并将结果保存在 Cursor 对象 noteCursor 中。
+
+ 接着，通过遍历 noteCursor 中的所有记录，获取每个笔记的修改日期，并将其写入到输出流 ps 中。然后，调用 exportNoteToText() 方法，将当前笔记的内容导出到输出流 ps 中。
+
+ 最后，关闭输出流 ps，并返回 STATE_SUCCESS 表示导出笔记数据成功。如果 noteCursor 为空，则不会做任何处理，直接关闭输出流并返回成功状态。*/
+
+ /**
+ * Get a print stream pointed to the file {@generateExportedTextFile}
+ */
+ private PrintStream getExportToTextPrintStream() {
+ File file = generateFileMountedOnSDcard(mContext, R.string.file_path,
+ R.string.file_name_txt_format);
+ if (file == null) {
+ Log.e(TAG, "create file to exported failed");
+ return null;
+ }
+ mFileName = file.getName();
+ mFileDirectory = mContext.getString(R.string.file_path);
+ PrintStream ps = null;
+ try {
+ FileOutputStream fos = new FileOutputStream(file);
+ ps = new PrintStream(fos);
+ } catch (FileNotFoundException e) {
+ e.printStackTrace();
+ return null;
+ } catch (NullPointerException e) {
+ e.printStackTrace();
+ return null;
+ }
+ return ps;
+ }
+ }/*这段代码的作用是创建一个输出流 PrintStream 对象，用于将笔记数据导出到文本文件中。
+
+首先，通过调用 generateFileMountedOnSDcard() 方法获取导出文件的路径和名称，并将结果保存在 File 对象 file 中。
+
+接着，检查 file 是否为 null。如果是，则在Logcat中输出 "create file to exported failed" 的错误信息，并返回 null。
+
+然后，获取 file 的名称和路径，并创建一个 FileOutputStream 对象 fos，将其作为参数传递给 PrintStream 构造函数，创建一个 PrintStream 对象 ps。
+
+最后，返回 ps 对象，如果在创建 PrintStream 对象时出现 FileNotFoundException 或 NullPointerException 异常，则返回 null*/
+
+ /**
+ * Generate the text file to store imported data
+ */
+ private static File generateFileMountedOnSDcard(Context context, int filePathResId, int fileNameFormatResId) {
+ StringBuilder sb = new StringBuilder();
+ sb.append(Environment.getExternalStorageDirectory());
+ sb.append(context.getString(filePathResId));
+ File filedir = new File(sb.toString());
+ sb.append(context.getString(
+ fileNameFormatResId,
+ DateFormat.format(context.getString(R.string.format_date_ymd),
+ System.currentTimeMillis())));
+ File file = new File(sb.toString());
+
+ try {
+ if (!filedir.exists()) {
+ filedir.mkdir();
+ }
+ if (!file.exists()) {
+ file.createNewFile();
+ }
+ return file;
+ } catch (SecurityException e) {
+ e.printStackTrace();
+ } catch (IOException e) {
+ e.printStackTrace();
+ }
+
+ return null;
+ }
+}/*这段代码的作用是生成一个文件对象，并返回该对象的引用。
+
+首先，获取外部存储设备的根目录，并将其与 filePathResId 参数所指定的路径拼接成一个完整的路径，并将其保存在 StringBuilder 对象 sb 中。
+
+接着，创建一个 File 对象 filedir，用于表示存储导出文件的目录。如果该目录不存在，则调用 mkdir() 方法创建该目录。
+
+然后，使用 fileNameFormatResId 参数所指定的文件名格式，将当前日期和时间添加到 sb 中，形成完整的文件路径。最后，创建一个 File 对象 file，用于表示导出的文件。
+
+最后，检查 file 和 filedir 是否存在。如果它们都存在，则直接返回 file 对象的引用。否则，通过捕捉 SecurityException 和 IOException 异常，输出异常信息，并返回 null。*/
+
+
diff --git a/app/src/main/java/net/micode/notes/tool/DataUtils.java b/app/src/main/java/net/micode/notes/tool/DataUtils.java
new file mode 100644
index 0000000..5ba9df3
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/tool/DataUtils.java
@@ -0,0 +1,359 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.tool;
+
+import android.content.ContentProviderOperation;
+import android.content.ContentProviderResult;
+import android.content.ContentResolver;
+import android.content.ContentUris;
+import android.content.ContentValues;
+import android.content.OperationApplicationException;
+import android.database.Cursor;
+import android.os.RemoteException;
+import android.util.Log;
+
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.CallNote;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+
+
+public class DataUtils {
+ public static final String TAG = "DataUtils";//定义了一个Java常量变量，名为TAG
+ public static boolean batchDeleteNotes(ContentResolver resolver, HashSet ids) {
+ if (ids == null) {
+ Log.d(TAG, "the ids is null");
+ return true;
+ }
+ if (ids.size() == 0) {
+ Log.d(TAG, "no id is in the hashset");
+ return true;
+ }
+
+ ArrayList operationList = new ArrayList();
+ for (long id : ids) {
+ if(id == Notes.ID_ROOT_FOLDER) {
+ Log.e(TAG, "Don't delete system folder root");
+ continue;
+ }
+ ContentProviderOperation.Builder builder = ContentProviderOperation
+ .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
+ operationList.add(builder.build());
+ }
+ try {
+ ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
+ if (results == null || results.length == 0 || results[0] == null) {
+ Log.d(TAG, "delete notes failed, ids:" + ids.toString());
+ return false;
+ }
+ return true;
+ } catch (RemoteException e) {
+ Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+ } catch (OperationApplicationException e) {
+ Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+ }
+ return false;
+ }/*这段代码是一个静态方法，它接受两个参数：ContentResolver对象和一个Long类型的HashSet集合。这个方法的作用是批量删除笔记。
+
+如果传入的ids集合为空，方法会输出一条日志并返回true；如果ids集合的大小为0，同样会输出一条日志并返回true。
+
+如果ids集合不为空且大小不为0，方法会遍历ids集合中的每个元素。如果该元素等于Notes.ID_ROOT_FOLDER，也就是系统文件夹的根目录，那么会输出一个错误日志并跳过该元素；否则，会创建一个ContentProviderOperation对象，使用ContentProviderOperation.newDelete()方法来构建一个删除操作，并将该操作添加到操作列表（operationList）中。
+
+最后，方法会使用ContentResolver.applyBatch()方法来执行操作列表中的所有操作，如果操作成功，则返回true，否则返回false。如果发生RemoteException或OperationApplicationException异常，方法会输出一个错误日志并返回false。*/
+
+ public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) {
+ ContentValues values = new ContentValues();
+ values.put(NoteColumns.PARENT_ID, desFolderId);
+ values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId);
+ values.put(NoteColumns.LOCAL_MODIFIED, 1);
+ resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null);
+ }/*这段代码是一个静态方法，它接受四个参数：ContentResolver对象、一个long类型的id、一个long类型的srcFolderId和一个long类型的desFolderId。这个方法的作用是将一个笔记移动到指定的文件夹中。
+
+方法首先创建一个ContentValues对象，并将要更新的字段和值添加到该对象中。这里，将NoteColumns.PARENT_ID字段设置为desFolderId，表示将笔记的父文件夹设置为目标文件夹；将NoteColumns.ORIGIN_PARENT_ID字段设置为srcFolderId，表示将笔记的原始父文件夹设置为源文件夹；将NoteColumns.LOCAL_MODIFIED字段设置为1，表示该笔记已被本地修改过。
+
+接下来，方法调用ContentResolver.update()方法来更新笔记。该方法接受四个参数：笔记的URI、要更新的值、选择条件和选择条件的参数。这里，笔记的URI是通过ContentUris.withAppendedId()方法创建的，其值为Notes.CONTENT_NOTE_URI与id拼接而成；要更新的值是上面创建的ContentValues对象；选择条件和选择条件的参数都为null，表示更新所有行。*/
+
+ public static boolean batchMoveToFolder(ContentResolver resolver, HashSet ids,
+ long folderId) {
+ if (ids == null) {
+ Log.d(TAG, "the ids is null");
+ return true;
+ }
+
+ ArrayList operationList = new ArrayList();
+ for (long id : ids) {
+ ContentProviderOperation.Builder builder = ContentProviderOperation
+ .newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
+ builder.withValue(NoteColumns.PARENT_ID, folderId);
+ builder.withValue(NoteColumns.LOCAL_MODIFIED, 1);
+ operationList.add(builder.build());
+ }
+
+ try {
+ ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
+ if (results == null || results.length == 0 || results[0] == null) {
+ Log.d(TAG, "delete notes failed, ids:" + ids.toString());
+ return false;
+ }
+ return true;
+ } catch (RemoteException e) {
+ Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+ } catch (OperationApplicationException e) {
+ Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+ }
+ return false;
+ }/*这段代码是一个静态方法，它接受三个参数：ContentResolver对象、一个Long类型的HashSet集合ids和一个Long类型的folderId。这个方法的作用是批量将笔记移动到指定的文件夹中。
+
+如果传入的ids集合为空，方法会输出一条日志并返回true。
+
+如果ids集合不为空，方法会遍历ids集合中的每个元素。对于每个元素，方法会创建一个ContentProviderOperation对象，并使用ContentProviderOperation.newUpdate()方法来构建一个更新操作。然后，将NoteColumns.PARENT_ID字段设置为folderId，表示将笔记的父文件夹设置为目标文件夹；将NoteColumns.LOCAL_MODIFIED字段设置为1，表示该笔记已被本地修改过。最后，将该操作添加到操作列表（operationList）中。
+
+最后，方法使用ContentResolver.applyBatch()方法来执行操作列表中的所有操作。如果操作成功，则返回true，否则返回false。如果发生RemoteException或OperationApplicationException异常，方法会输出一个错误日志并返回false*/
+
+ /**
+ * Get the all folder count except system folders {@link Notes#TYPE_SYSTEM}}
+ */
+ public static int getUserFolderCount(ContentResolver resolver) {
+ Cursor cursor =resolver.query(Notes.CONTENT_NOTE_URI,
+ new String[] { "COUNT(*)" },
+ NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?",
+ new String[] { String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)},
+ null);
+
+ int count = 0;
+ if(cursor != null) {
+ if(cursor.moveToFirst()) {
+ try {
+ count = cursor.getInt(0);
+ } catch (IndexOutOfBoundsException e) {
+ Log.e(TAG, "get folder count failed:" + e.toString());
+ } finally {
+ cursor.close();
+ }
+ }
+ }
+ return count;
+ }/*这段代码是一个静态方法，它接受一个ContentResolver对象作为参数。该方法的作用是返回用户创建的文件夹的数量。
+
+该方法创建了一个Cursor对象，使用ContentResolver.query()方法查询笔记数据库，并返回所有类型为Notes.TYPE_FOLDER（文件夹类型）且不在回收站中的笔记数量。查询结果只包含一列，即COUNT(*)。
+
+查询结果存储在Cursor对象中。如果Cursor对象不为null，方法会将光标移动到第一行，并使用getInt(0)方法获取查询结果中的第一列的值，即文件夹数量。如果发生IndexOutOfBoundsException异常，则输出一个错误日志。最后，方法关闭Cursor对象并返回文件夹数量。
+
+注意，该方法只返回用户创建的文件夹数量，不包括系统预置的文件夹（如回收站）。*/
+
+ public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) {
+ Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
+ null,
+ NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER,
+ new String [] {String.valueOf(type)},
+ null);
+
+ boolean exist = false;
+ if (cursor != null) {
+ if (cursor.getCount() > 0) {
+ exist = true;
+ }
+ cursor.close();
+ }
+ return exist;
+ }/*这段代码是一个静态方法，它接受三个参数：ContentResolver对象、一个long类型的noteId和一个int类型的type。该方法的作用是检查给定的笔记是否存在于笔记数据库中，并且不在回收站中。
+
+该方法首先创建一个Cursor对象，使用ContentResolver.query()方法查询笔记数据库，查询的条件是笔记类型为type，并且笔记的父文件夹不是回收站。查询结果包含所有列。
+
+然后，方法检查查询结果是否存在，如果存在则将exist变量设置为true。最后，方法关闭Cursor对象并返回exist变量的值，即给定的笔记是否存在于笔记数据库中。*/
+
+ public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) {
+ Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
+ null, null, null, null);
+
+ boolean exist = false;
+ if (cursor != null) {
+ if (cursor.getCount() > 0) {
+ exist = true;
+ }
+ cursor.close();
+ }
+ return exist;
+ }/*这段代码是一个静态方法，它接受两个参数：ContentResolver对象和一个long类型的noteId。该方法的作用是检查给定的笔记是否存在于笔记数据库中。
+
+该方法首先创建一个Cursor对象，使用ContentResolver.query()方法查询笔记数据库。查询条件为笔记ID等于noteId，查询结果包含所有列。
+
+然后，方法检查查询结果是否存在，如果存在则将exist变量设置为true。最后，方法关闭Cursor对象并返回exist变量的值，即给定的笔记是否存在于笔记数据库中*/
+
+ public static boolean existInDataDatabase(ContentResolver resolver, long dataId) {
+ Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId),
+ null, null, null, null);
+
+ boolean exist = false;
+ if (cursor != null) {
+ if (cursor.getCount() > 0) {
+ exist = true;
+ }
+ cursor.close();
+ }
+ return exist;
+ }/*这段代码是一个静态方法，它接受两个参数：ContentResolver对象和一个long类型的dataId。该方法的作用是检查给定的数据是否存在于数据数据库中。
+
+该方法首先创建一个Cursor对象，使用ContentResolver.query()方法查询数据数据库。查询条件为数据ID等于dataId，查询结果包含所有列。
+
+然后，方法检查查询结果是否存在，如果存在则将exist变量设置为true。最后，方法关闭Cursor对象并返回exist变量的值，即给定的数据是否存在于数据数据库中。*/
+
+ public static boolean checkVisibleFolderName(ContentResolver resolver, String name) {
+ Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, null,
+ NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER +
+ " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER +
+ " AND " + NoteColumns.SNIPPET + "=?",
+ new String[] { name }, null);
+ boolean exist = false;
+ if(cursor != null) {
+ if(cursor.getCount() > 0) {
+ exist = true;
+ }
+ cursor.close();
+ }
+ return exist;
+ }/*这段代码是一个静态方法，它接受两个参数：ContentResolver对象和一个String类型的name。该方法的作用是检查给定名称的文件夹在笔记数据库中是否可见（即不在回收站中）。
+
+该方法首先创建一个Cursor对象，使用ContentResolver.query()方法查询笔记数据库。查询条件为笔记类型为Notes.TYPE_FOLDER（文件夹类型）、父文件夹不是回收站（NoteColumns.PARENT_ID <> Notes.ID_TRASH_FOLER）以及笔记的摘要（NoteColumns.SNIPPET）等于给定的名称。查询结果包含所有列。
+
+然后，方法检查查询结果是否存在，如果存在则将exist变量设置为true。最后，方法关闭Cursor对象并返回exist变量的值，即给定名称的文件夹在笔记数据库中是否可见。*/
+
+ public static HashSet getFolderNoteWidget(ContentResolver resolver, long folderId) {
+ Cursor c = resolver.query(Notes.CONTENT_NOTE_URI,
+ new String[] { NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE },
+ NoteColumns.PARENT_ID + "=?",
+ new String[] { String.valueOf(folderId) },
+ null);
+
+ HashSet set = null;
+ if (c != null) {
+ if (c.moveToFirst()) {
+ set = new HashSet();
+ do {
+ try {
+ AppWidgetAttribute widget = new AppWidgetAttribute();
+ widget.widgetId = c.getInt(0);
+ widget.widgetType = c.getInt(1);
+ set.add(widget);
+ } catch (IndexOutOfBoundsException e) {
+ Log.e(TAG, e.toString());
+ }
+ } while (c.moveToNext());
+ }
+ c.close();
+ }
+ return set;
+ }/*这段代码是一个静态方法，它接受两个参数：ContentResolver对象和一个long类型的folderId。该方法的作用是获取给定文件夹下所有包含小部件的笔记的小部件ID和小部件类型。
+
+该方法首先创建一个Cursor对象，使用ContentResolver.query()方法查询笔记数据库。查询条件为笔记的父文件夹ID等于给定的folderId。查询结果包含小部件ID和小部件类型这两列。
+
+然后，方法将查询结果装入一个HashSet对象中。如果查询结果不为空，则创建一个HashSet对象，遍历查询结果并逐个添加小部件ID和小部件类型到HashSet中。如果查询结果为空，则返回null。
+
+最后，方法关闭Cursor对象并返回HashSet对象，其中包含给定文件夹下所有包含小部件的笔记的小部件ID和小部件类型。*/
+
+ public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) {
+ Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
+ new String [] { CallNote.PHONE_NUMBER },
+ CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?",
+ new String [] { String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE },
+ null);
+
+ if (cursor != null && cursor.moveToFirst()) {
+ try {
+ return cursor.getString(0);
+ } catch (IndexOutOfBoundsException e) {
+ Log.e(TAG, "Get call number fails " + e.toString());
+ } finally {
+ cursor.close();
+ }
+ }
+ return "";
+ }/*这段代码是一个静态方法，它接受两个参数：ContentResolver对象和一个long类型的noteId。该方法的作用是获取给定笔记ID对应的电话笔记的电话号码。
+
+该方法首先创建一个Cursor对象，使用ContentResolver.query()方法查询数据数据库。查询条件为电话笔记的笔记ID等于给定的noteId，且电话笔记的MIME类型为CallNote.CONTENT_ITEM_TYPE。查询结果包含电话号码这一列。
+
+然后，方法检查查询结果是否存在，如果存在则返回查询结果中的电话号码。如果查询结果不存在，则返回空字符串。
+
+最后，方法关闭Cursor对象并返回电话号码（或空字符串）。*/
+
+ public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) {
+ Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
+ new String [] { CallNote.NOTE_ID },
+ CallNote.CALL_DATE + "=? AND " + CallNote.MIME_TYPE + "=? AND PHONE_NUMBERS_EQUAL("
+ + CallNote.PHONE_NUMBER + ",?)",
+ new String [] { String.valueOf(callDate), CallNote.CONTENT_ITEM_TYPE, phoneNumber },
+ null);
+
+ if (cursor != null) {
+ if (cursor.moveToFirst()) {
+ try {
+ return cursor.getLong(0);
+ } catch (IndexOutOfBoundsException e) {
+ Log.e(TAG, "Get call note id fails " + e.toString());
+ }
+ }
+ cursor.close();
+ }
+ return 0;
+ }/*这段代码是一个静态方法，它接受三个参数：ContentResolver对象、一个String类型的phoneNumber和一个long类型的callDate。该方法的作用是根据给定的电话号码和通话日期获取对应的电话笔记的笔记ID。
+
+该方法首先创建一个Cursor对象，使用ContentResolver.query()方法查询数据数据库。查询条件为电话笔记的通话日期等于给定的callDate，电话笔记的MIME类型为CallNote.CONTENT_ITEM_TYPE，且电话号码等于给定的phoneNumber。查询结果包含笔记ID这一列。
+
+然后，方法检查查询结果是否存在。如果存在，则返回查询结果中的笔记ID。如果查询结果不存在，则返回0。
+
+最后，方法关闭Cursor对象并返回笔记ID（或0）。*/
+
+ public static String getSnippetById(ContentResolver resolver, long noteId) {
+ Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI,
+ new String [] { NoteColumns.SNIPPET },
+ NoteColumns.ID + "=?",
+ new String [] { String.valueOf(noteId)},
+ null);
+
+ if (cursor != null) {
+ String snippet = "";
+ if (cursor.moveToFirst()) {
+ snippet = cursor.getString(0);
+ }
+ cursor.close();
+ return snippet;
+ }
+ throw new IllegalArgumentException("Note is not found with id: " + noteId);
+ }/*这段代码是一个静态方法，它接受两个参数：ContentResolver对象和一个long类型的noteId。该方法的作用是获取给定笔记ID对应的笔记的摘要（snippet）。
+
+该方法首先创建一个Cursor对象，使用ContentResolver.query()方法查询笔记的内容提供者。查询条件为笔记的ID等于给定的noteId。查询结果包含笔记的摘要这一列。
+
+然后，方法检查查询结果是否存在。如果存在，则获取查询结果中的笔记摘要并将其存储在一个字符串变量snippet中。然后，方法关闭Cursor对象并返回snippet。如果查询结果不存在，则抛出一个IllegalArgumentException异常，其中包含“Note is not found with id: ”和给定的noteId作为错误消息。*/
+
+ public static String getFormattedSnippet(String snippet) {
+ if (snippet != null) {
+ snippet = snippet.trim();
+ int index = snippet.indexOf('\n');
+ if (index != -1) {
+ snippet = snippet.substring(0, index);
+ }
+ }
+ return snippet;
+ }
+}/*这段代码是一个静态方法，它接受一个String类型的snippet参数。该方法的作用是对给定的snippet进行格式化处理，以便在界面上显示。
+
+该方法首先检查传入的snippet是否为空。如果不为空，则使用String.trim()方法删除snippet字符串中的前导和尾随空格。然后，使用String.indexOf()方法查找snippet字符串中第一个换行符的位置。如果找到了换行符，则使用String.substring()方法截取snippet字符串中第一个换行符之前的所有字符，并将结果存储回snippet变量中。否则，不做任何修改，直接返回原始的snippet字符串。
+
+最后，方法返回格式化后的snippet字符串。*/
diff --git a/app/src/main/java/net/micode/notes/tool/GTaskStringUtils.java b/app/src/main/java/net/micode/notes/tool/GTaskStringUtils.java
new file mode 100644
index 0000000..f8ba895
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/tool/GTaskStringUtils.java
@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.tool;
+
+public class GTaskStringUtils {
+
+ public final static String GTASK_JSON_ACTION_ID = "action_id";// 行动 ID
+
+ public final static String GTASK_JSON_ACTION_LIST = "action_list";// 行动清单
+
+ public final static String GTASK_JSON_ACTION_TYPE = "action_type";// 行动类型
+
+ public final static String GTASK_JSON_ACTION_TYPE_CREATE = "create";// 创建行动
+
+ public final static String GTASK_JSON_ACTION_TYPE_GETALL = "get_all";// 获取全部行动
+
+ public final static String GTASK_JSON_ACTION_TYPE_MOVE = "move";// 移动行动
+
+ public final static String GTASK_JSON_ACTION_TYPE_UPDATE = "update"; // 更新行动
+
+ public final static String GTASK_JSON_CREATOR_ID = "creator_id";// 创建者 ID
+
+ public final static String GTASK_JSON_CHILD_ENTITY = "child_entity";// 子实体
+
+ public final static String GTASK_JSON_CLIENT_VERSION = "client_version";// 客户端版本
+
+ public final static String GTASK_JSON_COMPLETED = "completed"; // 完成状态
+
+ public final static String GTASK_JSON_CURRENT_LIST_ID = "current_list_id";// 当前清单 ID
+
+ public final static String GTASK_JSON_DEFAULT_LIST_ID = "default_list_id"; // 默认清单 ID
+
+ public final static String GTASK_JSON_DELETED = "deleted";// 删除状态
+
+ public final static String GTASK_JSON_DEST_LIST = "dest_list";// 目标清单
+
+ public final static String GTASK_JSON_DEST_PARENT = "dest_parent";// 目标父元素
+
+ public final static String GTASK_JSON_DEST_PARENT_TYPE = "dest_parent_type"; // 目标父元素类型
+
+ public final static String GTASK_JSON_ENTITY_DELTA = "entity_delta";// 实体增量
+
+ public final static String GTASK_JSON_ENTITY_TYPE = "entity_type"; // 实体类型
+
+ public final static String GTASK_JSON_GET_DELETED = "get_deleted"; // 获取删除状态
+
+ public final static String GTASK_JSON_ID = "id";// ID
+
+ public final static String GTASK_JSON_INDEX = "index";// 索引
+
+ public final static String GTASK_JSON_LAST_MODIFIED = "last_modified"; // 最后修改时间
+
+ public final static String GTASK_JSON_LATEST_SYNC_POINT = "latest_sync_point";// 最新同步点
+
+ public final static String GTASK_JSON_LIST_ID = "list_id"; // 清单 ID
+
+ public final static String GTASK_JSON_LISTS = "lists";// 清单列表
+ public final static String GTASK_JSON_NAME = "name";// 名称
+
+ public final static String GTASK_JSON_NEW_ID = "new_id";// 新 ID
+
+ public final static String GTASK_JSON_NOTES = "notes";// 备注
+
+ public final static String GTASK_JSON_PARENT_ID = "parent_id";// 父 ID
+
+ public final static String GTASK_JSON_PRIOR_SIBLING_ID = "prior_sibling_id";// 上一个同级 ID
+
+ public final static String GTASK_JSON_RESULTS = "results";// 结果
+
+ public final static String GTASK_JSON_SOURCE_LIST = "source_list";// 源清单
+
+ public final static String GTASK_JSON_TASKS = "tasks";// 任务列表
+
+ public final static String GTASK_JSON_TYPE = "type";// 类型
+
+ public final static String GTASK_JSON_TYPE_GROUP = "GROUP";// 分组类型
+
+ public final static String GTASK_JSON_TYPE_TASK = "TASK";// 任务类型
+
+ public final static String GTASK_JSON_USER = "user";// 用户
+
+ public final static String MIUI_FOLDER_PREFFIX = "[MIUI_Notes]"; // MIUI 笔记前缀
+
+ public final static String FOLDER_DEFAULT = "Default";// 默认文件夹
+
+ public final static String FOLDER_CALL_NOTE = "Call_Note"; // 通话笔记文件夹
+
+ public final static String FOLDER_META = "METADATA";// 元数据文件夹
+
+ public final static String META_HEAD_GTASK_ID = "meta_gid";// GTASK ID 元数据头
+
+ public final static String META_HEAD_NOTE = "meta_note";// 笔记元数据头
+
+ public final static String META_HEAD_DATA = "meta_data";// 数据元数据头
+
+ public final static String META_NOTE_NAME = "[META INFO] DON'T UPDATE AND DELETE";// 元数据笔记名称
+
+}
diff --git a/app/src/main/java/net/micode/notes/tool/ResourceParser.java b/app/src/main/java/net/micode/notes/tool/ResourceParser.java
new file mode 100644
index 0000000..fd1e936
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/tool/ResourceParser.java
@@ -0,0 +1,215 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.tool;
+
+import android.content.Context;
+import android.preference.PreferenceManager;
+
+import net.micode.notes.R;
+import net.micode.notes.ui.NotesPreferenceActivity;
+
+public class ResourceParser {
+
+ public static final int YELLOW = 0;// 黄色
+ public static final int BLUE = 1;// 蓝色
+ public static final int WHITE = 2;// 白色
+ public static final int GREEN = 3;// 绿色
+ public static final int RED = 4;// 红色
+ public static final int BG_DEFAULT_COLOR = YELLOW;// 默认背景颜色
+
+
+ public static final int TEXT_SMALL = 0;// 小号字体
+ public static final int TEXT_MEDIUM = 1;// 中号字体
+ public static final int TEXT_LARGE = 2;// 大号字体
+ public static final int TEXT_SUPER = 3;// 超大号字
+
+ public static final int BG_DEFAULT_FONT_SIZE = TEXT_MEDIUM;// 默认背景字体大小
+
+ public static class NoteBgResources {
+ private final static int [] BG_EDIT_RESOURCES = new int [] {
+ R.drawable.edit_yellow,
+ R.drawable.edit_blue,
+ R.drawable.edit_white,
+ R.drawable.edit_green,
+ R.drawable.edit_red
+ };/*这是一个静态内部类 NoteBgResources，其中包含一个名为 BG_EDIT_RESOURCES 的静态常量数组，该数组包含了 5 个整型元素，这些整型元素对应着项目中的一些 drawable 资源 R.drawable.edit_yellow、R.drawable.edit_blue、R.drawable.edit_white、R.drawable.edit_green、R.drawable.edit_red。*/
+
+ private final static int [] BG_EDIT_TITLE_RESOURCES = new int [] {
+ R.drawable.edit_title_yellow,
+ R.drawable.edit_title_blue,
+ R.drawable.edit_title_white,
+ R.drawable.edit_title_green,
+ R.drawable.edit_title_red
+ };/*这是一个私有的静态常量数组 BG_EDIT_TITLE_RESOURCES，它包含了五个整型元素，这些整型元素对应着项目中的一些 drawable 资源 R.drawable.edit_title_yellow、R.drawable.edit_title_blue、R.drawable.edit_title_white、R.drawable.edit_title_green、R.drawable.edit_title_red。*/
+
+ public static int getNoteBgResource(int id) {
+ return BG_EDIT_RESOURCES[id];
+ }/*一个静态方法 getNoteBgResource()，它接受一个整型参数 id，并返回一个整型值。在这个方法中，静态常量数组 BG_EDIT_RESOURCES 被索引到，以返回该数组中索引为 id 的元素的值。*/
+
+ public static int getNoteTitleBgResource(int id) {
+ return BG_EDIT_TITLE_RESOURCES[id];
+ }
+ }/*一个静态方法 getNoteTitleBgResource()，它接受一个整型参数 id，并返回一个整型值。在这个方法中，静态常量数组 BG_EDIT_TITLE_RESOURCES 被索引到，以返回该数组中索引为 id 的元素的值。*/
+
+ public static int getDefaultBgId(Context context) {
+ if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean(
+ NotesPreferenceActivity.PREFERENCE_SET_BG_COLOR_KEY, false)) {
+ return (int) (Math.random() * NoteBgResources.BG_EDIT_RESOURCES.length);
+ } else {
+ return BG_DEFAULT_COLOR;
+ }
+ }/*一个公共静态方法 getDefaultBgId()，它接受一个 Context 对象作为参数，并返回一个整型值。
+
+在这个方法中，首先通过 PreferenceManager.getDefaultSharedPreferences(context) 获取了一个默认的 SharedPreferences 对象，并检查其中的 PREFERENCE_SET_BG_COLOR_KEY 是否为 true。如果是 true，则使用 Math.random() 随机生成一个范围在 NoteBgResources.BG_EDIT_RESOURCES 数组长度内的整数，并返回该整数作为默认背景颜色的 ID。如果 PREFERENCE_SET_BG_COLOR_KEY 是 false，则返回 BG_DEFAULT_COLOR，它是 ResourceParser 类中定义的默认背景颜色的静态常量。*/
+
+ public static class NoteItemBgResources {
+ private final static int [] BG_FIRST_RESOURCES = new int [] {
+ R.drawable.list_yellow_up,
+ R.drawable.list_blue_up,
+ R.drawable.list_white_up,
+ R.drawable.list_green_up,
+ R.drawable.list_red_up
+ };/*一个静态内部类 NoteItemBgResources，其中包含一个名为 BG_FIRST_RESOURCES 的私有静态常量数组。
+
+该数组包含了 5 个整型元素，这些整型元素对应着项目中的一些 drawable 资源 R.drawable.list_yellow_up、R.drawable.list_blue_up、R.drawable.list_white_up、R.drawable.list_green_up、R.drawable.list_red_up。*/
+
+ private final static int [] BG_NORMAL_RESOURCES = new int [] {
+ R.drawable.list_yellow_middle,
+ R.drawable.list_blue_middle,
+ R.drawable.list_white_middle,
+ R.drawable.list_green_middle,
+ R.drawable.list_red_middle
+ };/*这是一个私有的静态常量数组 BG_NORMAL_RESOURCES，它包含了五个整型元素，这些整型元素对应着项目中的一些 drawable 资源 R.drawable.list_yellow_middle、R.drawable.list_blue_middle、R.drawable.list_white_middle、R.drawable.list_green_middle、R.drawable.list_red_middle。
+
+这个数组可能是用于为笔记列表项设置不同背景颜色的 drawable 资源数组，每个元素对应一种背景颜色。
+其中，R.drawable.list_yellow_middle、R.drawable.list_blue_middle、R.drawable.list_white_middle、R.drawable.list_green_middle、R.drawable.list_red_middle 对应的是列表项中间部分的背景颜色。*/
+ private final static int [] BG_LAST_RESOURCES = new int [] {
+ R.drawable.list_yellow_down,
+ R.drawable.list_blue_down,
+ R.drawable.list_white_down,
+ R.drawable.list_green_down,
+ R.drawable.list_red_down,
+ };/*一个私有的静态常量数组 BG_LAST_RESOURCES，它包含了五个整型元素，这些整型元素对应着项目中的一些 drawable 资源 R.drawable.list_yellow_down、R.drawable.list_blue_down、R.drawable.list_white_down、R.drawable.list_green_down、R.drawable.list_red_down。
+
+这个数组可能是用于为笔记列表项设置不同背景颜色的 drawable 资源数组，每个元素对应一种背景颜色。其中，R.drawable.list_yellow_down、R.drawable.list_blue_down、R.drawable.list_white_down、R.drawable.list_green_down、R.drawable.list_red_down 对应的是列表项底部部分的背景颜色。*/
+
+ private final static int [] BG_SINGLE_RESOURCES = new int [] {
+ R.drawable.list_yellow_single,
+ R.drawable.list_blue_single,
+ R.drawable.list_white_single,
+ R.drawable.list_green_single,
+ R.drawable.list_red_single
+ };/*一个私有的静态常量数组 BG_SINGLE_RESOURCES，它包含了五个整型元素，这些整型元素对应着项目中的一些 drawable 资源 R.drawable.list_yellow_single、R.drawable.list_blue_single、R.drawable.list_white_single、R.drawable.list_green_single、R.drawable.list_red_single。
+
+这个数组可能是用于为笔记列表项设置不同背景颜色的 drawable 资源数组，每个元素对应一种背景颜色。其中，R.drawable.list_yellow_single、R.drawable.list_blue_single、R.drawable.list_white_single、R.drawable.list_green_single、R.drawable.list_red_single 对应的是只有一个列表项时的背景颜色。*/
+
+ public static int getNoteBgFirstRes(int id) {
+ return BG_FIRST_RESOURCES[id];
+ }/*一个公共静态方法 getNoteBgFirstRes()，它接受一个整型参数 id，并返回一个整型值。*/
+
+ public static int getNoteBgLastRes(int id) {
+ return BG_LAST_RESOURCES[id];
+ }/*一个公共静态方法 getNoteBgLastRes()，它接受一个整型参数 id，并返回一个整型值。
+
+在这个方法中，静态常量数组 BG_LAST_RESOURCES 被索引到，以返回该数组中索引为 id 的元素的值*/
+
+ public static int getNoteBgSingleRes(int id) {
+ return BG_SINGLE_RESOURCES[id];
+ }/*一个公共静态方法 getNoteBgSingleRes()，它接受一个整型参数 id，并返回一个整型值。
+
+在这个方法中，静态常量数组 BG_SINGLE_RESOURCES 被索引到，以返回该数组中索引为 id 的元素的值。*/
+
+ public static int getNoteBgNormalRes(int id) {
+ return BG_NORMAL_RESOURCES[id];
+ }/*一个公共静态方法 getNoteBgNormalRes()，它接受一个整型参数 id，并返回一个整型值。
+
+在这个方法中，静态常量数组 BG_NORMAL_RESOURCES 被索引到，以返回该数组中索引为 id 的元素的值。*/
+
+ public static int getFolderBgRes() {
+ return R.drawable.list_folder;
+ }
+ }/*一个公共静态方法 getFolderBgRes()，它返回一个整型值。
+
+在这个方法中，返回了一个名为 list_folder 的 drawable 资源的 ID，该资源可能是用于为文件夹列表项设置背景的。*/
+
+ public static class WidgetBgResources {
+ private final static int [] BG_2X_RESOURCES = new int [] {
+ R.drawable.widget_2x_yellow,
+ R.drawable.widget_2x_blue,
+ R.drawable.widget_2x_white,
+ R.drawable.widget_2x_green,
+ R.drawable.widget_2x_red,
+ };/*一个静态内部类 WidgetBgResources，它包含一个私有的静态常量数组 BG_2X_RESOURCES，该数组包含五个整型元素，这些整型元素对应着项目中的一些 drawable 资源 R.drawable.widget_2x_yellow、R.drawable.widget_2x_blue、R.drawable.widget_2x_white、R.drawable.widget_2x_green、R.drawable.widget_2x_red。*/
+
+ public static int getWidget2xBgResource(int id) {
+ return BG_2X_RESOURCES[id];
+ }
+
+ private final static int [] BG_4X_RESOURCES = new int [] {
+ R.drawable.widget_4x_yellow,
+ R.drawable.widget_4x_blue,
+ R.drawable.widget_4x_white,
+ R.drawable.widget_4x_green,
+ R.drawable.widget_4x_red
+ };/*一个公共静态方法 getWidget2xBgResource()，它接受一个整型参数 id，并返回一个整型值。
+
+在这个方法中，静态常量数组 BG_2X_RESOURCES 被索引到，以返回该数组中索引为 id 的元素的值。
+
+这个方法可能是用于获取小部件 2x2 大小的背景资源的方法，它接受一个背景颜色的 ID，返回对应的 drawable 资源。
+
+这个静态内部类还包含了一个私有的静态常量数组 BG_4X_RESOURCES，该数组包含五个整型元素，这些整型元素对应着项目中的一些 drawable 资源 R.drawable.widget_4x_yellow、R.drawable.widget_4x_blue、R.drawable.widget_4x_white、R.drawable.widget_4x_green、R.drawable.widget_4x_red。*/
+
+ public static int getWidget4xBgResource(int id) {
+ return BG_4X_RESOURCES[id];
+ }
+ }/*一个公共静态方法 getWidget4xBgResource()，它接受一个整型参数 id，并返回一个整型值。
+
+在这个方法中，静态常量数组 BG_4X_RESOURCES 被索引到，以返回该数组中索引为 id 的元素的值。*/
+
+ public static class TextAppearanceResources {
+ private final static int [] TEXTAPPEARANCE_RESOURCES = new int [] {
+ R.style.TextAppearanceNormal,
+ R.style.TextAppearanceMedium,
+ R.style.TextAppearanceLarge,
+ R.style.TextAppearanceSuper
+ };/*一个静态内部类 TextAppearanceResources，它包含一个私有的静态常量数组 TEXTAPPEARANCE_RESOURCES，该数组包含四个整型元素，这些整型元素对应着项目中的一些样式资源 R.style.TextAppearanceNormal、R.style.TextAppearanceMedium、R.style.TextAppearanceLarge、R.style.TextAppearanceSuper。*/
+
+ public static int getTexAppearanceResource(int id) {
+ /**
+ * HACKME: Fix bug of store the resource id in shared preference.
+ * The id may larger than the length of resources, in this case,
+ * return the {@link ResourceParser#BG_DEFAULT_FONT_SIZE}
+ */
+ if (id >= TEXTAPPEARANCE_RESOURCES.length) {
+ return BG_DEFAULT_FONT_SIZE;
+ }
+ return TEXTAPPEARANCE_RESOURCES[id];
+ }/*一个公共静态方法 getTexAppearanceResource()，它接受一个整型参数 id，并返回一个整型值。
+
+在这个方法中，首先判断传入的 id 是否大于等于 TEXTAPPEARANCE_RESOURCES 数组的长度，如果是，则返回默认的字体大小 BG_DEFAULT_FONT_SIZE。
+
+如果 id 小于 TEXTAPPEARANCE_RESOURCES 数组的长度，则返回 TEXTAPPEARANCE_RESOURCES 数组中索引为 id 的元素的值。*/
+
+ public static int getResourcesSize() {
+ return TEXTAPPEARANCE_RESOURCES.length;
+ }
+ }
+}/*一个公共静态方法 getTexAppearanceResource()，它接受一个整型参数 id，并返回一个整型值。
+
+在这个方法中，首先判断传入的 id 是否大于等于 TEXTAPPEARANCE_RESOURCES 数组的长度，如果是，则返回默认的字体大小 BG_DEFAULT_FONT_SIZE。
+
+如果 id 小于 TEXTAPPEARANCE_RESOURCES 数组的长度，则返回 TEXTAPPEARANCE_RESOURCES 数组中索引为 id 的元素的值。*/
diff --git a/app/src/main/java/net/micode/notes/ui/AlarmAlertActivity.java b/app/src/main/java/net/micode/notes/ui/AlarmAlertActivity.java
new file mode 100644
index 0000000..85723be
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/ui/AlarmAlertActivity.java
@@ -0,0 +1,158 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.DialogInterface.OnClickListener;
+import android.content.DialogInterface.OnDismissListener;
+import android.content.Intent;
+import android.media.AudioManager;
+import android.media.MediaPlayer;
+import android.media.RingtoneManager;
+import android.net.Uri;
+import android.os.Bundle;
+import android.os.PowerManager;
+import android.provider.Settings;
+import android.view.Window;
+import android.view.WindowManager;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.tool.DataUtils;
+
+import java.io.IOException;
+
+
+public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener {
+ private long mNoteId;
+ private String mSnippet;
+ private static final int SNIPPET_PREW_MAX_LEN = 60;
+ MediaPlayer mPlayer;
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ requestWindowFeature(Window.FEATURE_NO_TITLE);
+
+ final Window win = getWindow();
+ win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
+
+ if (!isScreenOn()) {
+ win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
+ | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON
+ | WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON
+ | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR);
+ }
+
+ Intent intent = getIntent();
+
+ try {
+ mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1));
+ mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId);
+ mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0,
+ SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info)
+ : mSnippet;
+ } catch (IllegalArgumentException e) {
+ e.printStackTrace();
+ return;
+ }
+
+ mPlayer = new MediaPlayer();
+ if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) {
+ showActionDialog();
+ playAlarmSound();
+ } else {
+ finish();
+ }
+ }
+
+ private boolean isScreenOn() {
+ PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
+ return pm.isScreenOn();
+ }
+
+ private void playAlarmSound() {
+ Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM);
+
+ int silentModeStreams = Settings.System.getInt(getContentResolver(),
+ Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0);
+
+ if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) {
+ mPlayer.setAudioStreamType(silentModeStreams);
+ } else {
+ mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM);
+ }
+ try {
+ mPlayer.setDataSource(this, url);
+ mPlayer.prepare();
+ mPlayer.setLooping(true);
+ mPlayer.start();
+ } catch (IllegalArgumentException e) {
+ // TODO Auto-generated catch block
+ e.printStackTrace();
+ } catch (SecurityException e) {
+ // TODO Auto-generated catch block
+ e.printStackTrace();
+ } catch (IllegalStateException e) {
+ // TODO Auto-generated catch block
+ e.printStackTrace();
+ } catch (IOException e) {
+ // TODO Auto-generated catch block
+ e.printStackTrace();
+ }
+ }
+
+ private void showActionDialog() {
+ AlertDialog.Builder dialog = new AlertDialog.Builder(this);
+ dialog.setTitle(R.string.app_name);
+ dialog.setMessage(mSnippet);
+ dialog.setPositiveButton(R.string.notealert_ok, this);
+ if (isScreenOn()) {
+ dialog.setNegativeButton(R.string.notealert_enter, this);
+ }
+ dialog.show().setOnDismissListener(this);
+ }
+
+ public void onClick(DialogInterface dialog, int which) {
+ switch (which) {
+ case DialogInterface.BUTTON_NEGATIVE:
+ Intent intent = new Intent(this, NoteEditActivity.class);
+ intent.setAction(Intent.ACTION_VIEW);
+ intent.putExtra(Intent.EXTRA_UID, mNoteId);
+ startActivity(intent);
+ break;
+ default:
+ break;
+ }
+ }
+
+ public void onDismiss(DialogInterface dialog) {
+ stopAlarmSound();
+ finish();
+ }
+
+ private void stopAlarmSound() {
+ if (mPlayer != null) {
+ mPlayer.stop();
+ mPlayer.release();
+ mPlayer = null;
+ }
+ }
+}
diff --git a/app/src/main/java/net/micode/notes/ui/AlarmInitReceiver.java b/app/src/main/java/net/micode/notes/ui/AlarmInitReceiver.java
new file mode 100644
index 0000000..f221202
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/ui/AlarmInitReceiver.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.app.AlarmManager;
+import android.app.PendingIntent;
+import android.content.BroadcastReceiver;
+import android.content.ContentUris;
+import android.content.Context;
+import android.content.Intent;
+import android.database.Cursor;
+
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.NoteColumns;
+
+
+public class AlarmInitReceiver extends BroadcastReceiver {
+
+ private static final String [] PROJECTION = new String [] {
+ NoteColumns.ID,
+ NoteColumns.ALERTED_DATE
+ };
+
+ private static final int COLUMN_ID = 0;
+ private static final int COLUMN_ALERTED_DATE = 1;
+
+ @Override
+ public void onReceive(Context context, Intent intent) {
+ long currentDate = System.currentTimeMillis();
+ Cursor c = context.getContentResolver().query(Notes.CONTENT_NOTE_URI,
+ PROJECTION,
+ NoteColumns.ALERTED_DATE + ">? AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE,
+ new String[] { String.valueOf(currentDate) },
+ null);
+
+ if (c != null) {
+ if (c.moveToFirst()) {
+ do {
+ long alertDate = c.getLong(COLUMN_ALERTED_DATE);
+ Intent sender = new Intent(context, AlarmReceiver.class);
+ sender.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, c.getLong(COLUMN_ID)));
+ PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, sender, 0);
+ AlarmManager alermManager = (AlarmManager) context
+ .getSystemService(Context.ALARM_SERVICE);
+ alermManager.set(AlarmManager.RTC_WAKEUP, alertDate, pendingIntent);
+ } while (c.moveToNext());
+ }
+ c.close();
+ }
+ }
+}
diff --git a/app/src/main/java/net/micode/notes/ui/AlarmReceiver.java b/app/src/main/java/net/micode/notes/ui/AlarmReceiver.java
new file mode 100644
index 0000000..54e503b
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/ui/AlarmReceiver.java
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+
+public class AlarmReceiver extends BroadcastReceiver {
+ @Override
+ public void onReceive(Context context, Intent intent) {
+ intent.setClass(context, AlarmAlertActivity.class);
+ intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+ context.startActivity(intent);
+ }
+}
diff --git a/app/src/main/java/net/micode/notes/ui/DateTimePicker.java b/app/src/main/java/net/micode/notes/ui/DateTimePicker.java
new file mode 100644
index 0000000..496b0cd
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/ui/DateTimePicker.java
@@ -0,0 +1,485 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import java.text.DateFormatSymbols;
+import java.util.Calendar;
+
+import net.micode.notes.R;
+
+
+import android.content.Context;
+import android.text.format.DateFormat;
+import android.view.View;
+import android.widget.FrameLayout;
+import android.widget.NumberPicker;
+
+public class DateTimePicker extends FrameLayout {
+
+ private static final boolean DEFAULT_ENABLE_STATE = true;
+
+ private static final int HOURS_IN_HALF_DAY = 12;
+ private static final int HOURS_IN_ALL_DAY = 24;
+ private static final int DAYS_IN_ALL_WEEK = 7;
+ private static final int DATE_SPINNER_MIN_VAL = 0;
+ private static final int DATE_SPINNER_MAX_VAL = DAYS_IN_ALL_WEEK - 1;
+ private static final int HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW = 0;
+ private static final int HOUR_SPINNER_MAX_VAL_24_HOUR_VIEW = 23;
+ private static final int HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW = 1;
+ private static final int HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW = 12;
+ private static final int MINUT_SPINNER_MIN_VAL = 0;
+ private static final int MINUT_SPINNER_MAX_VAL = 59;
+ private static final int AMPM_SPINNER_MIN_VAL = 0;
+ private static final int AMPM_SPINNER_MAX_VAL = 1;
+
+ private final NumberPicker mDateSpinner;
+ private final NumberPicker mHourSpinner;
+ private final NumberPicker mMinuteSpinner;
+ private final NumberPicker mAmPmSpinner;
+ private Calendar mDate;
+
+ private String[] mDateDisplayValues = new String[DAYS_IN_ALL_WEEK];
+
+ private boolean mIsAm;
+
+ private boolean mIs24HourView;
+
+ private boolean mIsEnabled = DEFAULT_ENABLE_STATE;
+
+ private boolean mInitialising;
+
+ private OnDateTimeChangedListener mOnDateTimeChangedListener;
+
+ private NumberPicker.OnValueChangeListener mOnDateChangedListener = new NumberPicker.OnValueChangeListener() {
+ @Override
+ public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
+ mDate.add(Calendar.DAY_OF_YEAR, newVal - oldVal);
+ updateDateControl();
+ onDateTimeChanged();
+ }
+ };
+
+ private NumberPicker.OnValueChangeListener mOnHourChangedListener = new NumberPicker.OnValueChangeListener() {
+ @Override
+ public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
+ boolean isDateChanged = false;
+ Calendar cal = Calendar.getInstance();
+ if (!mIs24HourView) {
+ if (!mIsAm && oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY) {
+ cal.setTimeInMillis(mDate.getTimeInMillis());
+ cal.add(Calendar.DAY_OF_YEAR, 1);
+ isDateChanged = true;
+ } else if (mIsAm && oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) {
+ cal.setTimeInMillis(mDate.getTimeInMillis());
+ cal.add(Calendar.DAY_OF_YEAR, -1);
+ isDateChanged = true;
+ }
+ if (oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY ||
+ oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) {
+ mIsAm = !mIsAm;
+ updateAmPmControl();
+ }
+ } else {
+ if (oldVal == HOURS_IN_ALL_DAY - 1 && newVal == 0) {
+ cal.setTimeInMillis(mDate.getTimeInMillis());
+ cal.add(Calendar.DAY_OF_YEAR, 1);
+ isDateChanged = true;
+ } else if (oldVal == 0 && newVal == HOURS_IN_ALL_DAY - 1) {
+ cal.setTimeInMillis(mDate.getTimeInMillis());
+ cal.add(Calendar.DAY_OF_YEAR, -1);
+ isDateChanged = true;
+ }
+ }
+ int newHour = mHourSpinner.getValue() % HOURS_IN_HALF_DAY + (mIsAm ? 0 : HOURS_IN_HALF_DAY);
+ mDate.set(Calendar.HOUR_OF_DAY, newHour);
+ onDateTimeChanged();
+ if (isDateChanged) {
+ setCurrentYear(cal.get(Calendar.YEAR));
+ setCurrentMonth(cal.get(Calendar.MONTH));
+ setCurrentDay(cal.get(Calendar.DAY_OF_MONTH));
+ }
+ }
+ };
+
+ private NumberPicker.OnValueChangeListener mOnMinuteChangedListener = new NumberPicker.OnValueChangeListener() {
+ @Override
+ public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
+ int minValue = mMinuteSpinner.getMinValue();
+ int maxValue = mMinuteSpinner.getMaxValue();
+ int offset = 0;
+ if (oldVal == maxValue && newVal == minValue) {
+ offset += 1;
+ } else if (oldVal == minValue && newVal == maxValue) {
+ offset -= 1;
+ }
+ if (offset != 0) {
+ mDate.add(Calendar.HOUR_OF_DAY, offset);
+ mHourSpinner.setValue(getCurrentHour());
+ updateDateControl();
+ int newHour = getCurrentHourOfDay();
+ if (newHour >= HOURS_IN_HALF_DAY) {
+ mIsAm = false;
+ updateAmPmControl();
+ } else {
+ mIsAm = true;
+ updateAmPmControl();
+ }
+ }
+ mDate.set(Calendar.MINUTE, newVal);
+ onDateTimeChanged();
+ }
+ };
+
+ private NumberPicker.OnValueChangeListener mOnAmPmChangedListener = new NumberPicker.OnValueChangeListener() {
+ @Override
+ public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
+ mIsAm = !mIsAm;
+ if (mIsAm) {
+ mDate.add(Calendar.HOUR_OF_DAY, -HOURS_IN_HALF_DAY);
+ } else {
+ mDate.add(Calendar.HOUR_OF_DAY, HOURS_IN_HALF_DAY);
+ }
+ updateAmPmControl();
+ onDateTimeChanged();
+ }
+ };
+
+ public interface OnDateTimeChangedListener {
+ void onDateTimeChanged(DateTimePicker view, int year, int month,
+ int dayOfMonth, int hourOfDay, int minute);
+ }
+
+ public DateTimePicker(Context context) {
+ this(context, System.currentTimeMillis());
+ }
+
+ public DateTimePicker(Context context, long date) {
+ this(context, date, DateFormat.is24HourFormat(context));
+ }
+
+ public DateTimePicker(Context context, long date, boolean is24HourView) {
+ super(context);
+ mDate = Calendar.getInstance();
+ mInitialising = true;
+ mIsAm = getCurrentHourOfDay() >= HOURS_IN_HALF_DAY;
+ inflate(context, R.layout.datetime_picker, this);
+
+ mDateSpinner = (NumberPicker) findViewById(R.id.date);
+ mDateSpinner.setMinValue(DATE_SPINNER_MIN_VAL);
+ mDateSpinner.setMaxValue(DATE_SPINNER_MAX_VAL);
+ mDateSpinner.setOnValueChangedListener(mOnDateChangedListener);
+
+ mHourSpinner = (NumberPicker) findViewById(R.id.hour);
+ mHourSpinner.setOnValueChangedListener(mOnHourChangedListener);
+ mMinuteSpinner = (NumberPicker) findViewById(R.id.minute);
+ mMinuteSpinner.setMinValue(MINUT_SPINNER_MIN_VAL);
+ mMinuteSpinner.setMaxValue(MINUT_SPINNER_MAX_VAL);
+ mMinuteSpinner.setOnLongPressUpdateInterval(100);
+ mMinuteSpinner.setOnValueChangedListener(mOnMinuteChangedListener);
+
+ String[] stringsForAmPm = new DateFormatSymbols().getAmPmStrings();
+ mAmPmSpinner = (NumberPicker) findViewById(R.id.amPm);
+ mAmPmSpinner.setMinValue(AMPM_SPINNER_MIN_VAL);
+ mAmPmSpinner.setMaxValue(AMPM_SPINNER_MAX_VAL);
+ mAmPmSpinner.setDisplayedValues(stringsForAmPm);
+ mAmPmSpinner.setOnValueChangedListener(mOnAmPmChangedListener);
+
+ // update controls to initial state
+ updateDateControl();
+ updateHourControl();
+ updateAmPmControl();
+
+ set24HourView(is24HourView);
+
+ // set to current time
+ setCurrentDate(date);
+
+ setEnabled(isEnabled());
+
+ // set the content descriptions
+ mInitialising = false;
+ }
+
+ @Override
+ public void setEnabled(boolean enabled) {
+ if (mIsEnabled == enabled) {
+ return;
+ }
+ super.setEnabled(enabled);
+ mDateSpinner.setEnabled(enabled);
+ mMinuteSpinner.setEnabled(enabled);
+ mHourSpinner.setEnabled(enabled);
+ mAmPmSpinner.setEnabled(enabled);
+ mIsEnabled = enabled;
+ }
+
+ @Override
+ public boolean isEnabled() {
+ return mIsEnabled;
+ }
+
+ /**
+ * Get the current date in millis
+ *
+ * @return the current date in millis
+ */
+ public long getCurrentDateInTimeMillis() {
+ return mDate.getTimeInMillis();
+ }
+
+ /**
+ * Set the current date
+ *
+ * @param date The current date in millis
+ */
+ public void setCurrentDate(long date) {
+ Calendar cal = Calendar.getInstance();
+ cal.setTimeInMillis(date);
+ setCurrentDate(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH),
+ cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE));
+ }
+
+ /**
+ * Set the current date
+ *
+ * @param year The current year
+ * @param month The current month
+ * @param dayOfMonth The current dayOfMonth
+ * @param hourOfDay The current hourOfDay
+ * @param minute The current minute
+ */
+ public void setCurrentDate(int year, int month,
+ int dayOfMonth, int hourOfDay, int minute) {
+ setCurrentYear(year);
+ setCurrentMonth(month);
+ setCurrentDay(dayOfMonth);
+ setCurrentHour(hourOfDay);
+ setCurrentMinute(minute);
+ }
+
+ /**
+ * Get current year
+ *
+ * @return The current year
+ */
+ public int getCurrentYear() {
+ return mDate.get(Calendar.YEAR);
+ }
+
+ /**
+ * Set current year
+ *
+ * @param year The current year
+ */
+ public void setCurrentYear(int year) {
+ if (!mInitialising && year == getCurrentYear()) {
+ return;
+ }
+ mDate.set(Calendar.YEAR, year);
+ updateDateControl();
+ onDateTimeChanged();
+ }
+
+ /**
+ * Get current month in the year
+ *
+ * @return The current month in the year
+ */
+ public int getCurrentMonth() {
+ return mDate.get(Calendar.MONTH);
+ }
+
+ /**
+ * Set current month in the year
+ *
+ * @param month The month in the year
+ */
+ public void setCurrentMonth(int month) {
+ if (!mInitialising && month == getCurrentMonth()) {
+ return;
+ }
+ mDate.set(Calendar.MONTH, month);
+ updateDateControl();
+ onDateTimeChanged();
+ }
+
+ /**
+ * Get current day of the month
+ *
+ * @return The day of the month
+ */
+ public int getCurrentDay() {
+ return mDate.get(Calendar.DAY_OF_MONTH);
+ }
+
+ /**
+ * Set current day of the month
+ *
+ * @param dayOfMonth The day of the month
+ */
+ public void setCurrentDay(int dayOfMonth) {
+ if (!mInitialising && dayOfMonth == getCurrentDay()) {
+ return;
+ }
+ mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth);
+ updateDateControl();
+ onDateTimeChanged();
+ }
+
+ /**
+ * Get current hour in 24 hour mode, in the range (0~23)
+ * @return The current hour in 24 hour mode
+ */
+ public int getCurrentHourOfDay() {
+ return mDate.get(Calendar.HOUR_OF_DAY);
+ }
+
+ private int getCurrentHour() {
+ if (mIs24HourView){
+ return getCurrentHourOfDay();
+ } else {
+ int hour = getCurrentHourOfDay();
+ if (hour > HOURS_IN_HALF_DAY) {
+ return hour - HOURS_IN_HALF_DAY;
+ } else {
+ return hour == 0 ? HOURS_IN_HALF_DAY : hour;
+ }
+ }
+ }
+
+ /**
+ * Set current hour in 24 hour mode, in the range (0~23)
+ *
+ * @param hourOfDay
+ */
+ public void setCurrentHour(int hourOfDay) {
+ if (!mInitialising && hourOfDay == getCurrentHourOfDay()) {
+ return;
+ }
+ mDate.set(Calendar.HOUR_OF_DAY, hourOfDay);
+ if (!mIs24HourView) {
+ if (hourOfDay >= HOURS_IN_HALF_DAY) {
+ mIsAm = false;
+ if (hourOfDay > HOURS_IN_HALF_DAY) {
+ hourOfDay -= HOURS_IN_HALF_DAY;
+ }
+ } else {
+ mIsAm = true;
+ if (hourOfDay == 0) {
+ hourOfDay = HOURS_IN_HALF_DAY;
+ }
+ }
+ updateAmPmControl();
+ }
+ mHourSpinner.setValue(hourOfDay);
+ onDateTimeChanged();
+ }
+
+ /**
+ * Get currentMinute
+ *
+ * @return The Current Minute
+ */
+ public int getCurrentMinute() {
+ return mDate.get(Calendar.MINUTE);
+ }
+
+ /**
+ * Set current minute
+ */
+ public void setCurrentMinute(int minute) {
+ if (!mInitialising && minute == getCurrentMinute()) {
+ return;
+ }
+ mMinuteSpinner.setValue(minute);
+ mDate.set(Calendar.MINUTE, minute);
+ onDateTimeChanged();
+ }
+
+ /**
+ * @return true if this is in 24 hour view else false.
+ */
+ public boolean is24HourView () {
+ return mIs24HourView;
+ }
+
+ /**
+ * Set whether in 24 hour or AM/PM mode.
+ *
+ * @param is24HourView True for 24 hour mode. False for AM/PM mode.
+ */
+ public void set24HourView(boolean is24HourView) {
+ if (mIs24HourView == is24HourView) {
+ return;
+ }
+ mIs24HourView = is24HourView;
+ mAmPmSpinner.setVisibility(is24HourView ? View.GONE : View.VISIBLE);
+ int hour = getCurrentHourOfDay();
+ updateHourControl();
+ setCurrentHour(hour);
+ updateAmPmControl();
+ }
+
+ private void updateDateControl() {
+ Calendar cal = Calendar.getInstance();
+ cal.setTimeInMillis(mDate.getTimeInMillis());
+ cal.add(Calendar.DAY_OF_YEAR, -DAYS_IN_ALL_WEEK / 2 - 1);
+ mDateSpinner.setDisplayedValues(null);
+ for (int i = 0; i < DAYS_IN_ALL_WEEK; ++i) {
+ cal.add(Calendar.DAY_OF_YEAR, 1);
+ mDateDisplayValues[i] = (String) DateFormat.format("MM.dd EEEE", cal);
+ }
+ mDateSpinner.setDisplayedValues(mDateDisplayValues);
+ mDateSpinner.setValue(DAYS_IN_ALL_WEEK / 2);
+ mDateSpinner.invalidate();
+ }
+
+ private void updateAmPmControl() {
+ if (mIs24HourView) {
+ mAmPmSpinner.setVisibility(View.GONE);
+ } else {
+ int index = mIsAm ? Calendar.AM : Calendar.PM;
+ mAmPmSpinner.setValue(index);
+ mAmPmSpinner.setVisibility(View.VISIBLE);
+ }
+ }
+
+ private void updateHourControl() {
+ if (mIs24HourView) {
+ mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW);
+ mHourSpinner.setMaxValue(HOUR_SPINNER_MAX_VAL_24_HOUR_VIEW);
+ } else {
+ mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW);
+ mHourSpinner.setMaxValue(HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW);
+ }
+ }
+
+ /**
+ * Set the callback that indicates the 'Set' button has been pressed.
+ * @param callback the callback, if null will do nothing
+ */
+ public void setOnDateTimeChangedListener(OnDateTimeChangedListener callback) {
+ mOnDateTimeChangedListener = callback;
+ }
+
+ private void onDateTimeChanged() {
+ if (mOnDateTimeChangedListener != null) {
+ mOnDateTimeChangedListener.onDateTimeChanged(this, getCurrentYear(),
+ getCurrentMonth(), getCurrentDay(), getCurrentHourOfDay(), getCurrentMinute());
+ }
+ }
+}
diff --git a/app/src/main/java/net/micode/notes/ui/DateTimePickerDialog.java b/app/src/main/java/net/micode/notes/ui/DateTimePickerDialog.java
new file mode 100644
index 0000000..2c47ba4
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/ui/DateTimePickerDialog.java
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import java.util.Calendar;
+
+import net.micode.notes.R;
+import net.micode.notes.ui.DateTimePicker;
+import net.micode.notes.ui.DateTimePicker.OnDateTimeChangedListener;
+
+import android.app.AlertDialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.DialogInterface.OnClickListener;
+import android.text.format.DateFormat;
+import android.text.format.DateUtils;
+
+public class DateTimePickerDialog extends AlertDialog implements OnClickListener {
+
+ private Calendar mDate = Calendar.getInstance();
+ private boolean mIs24HourView;
+ private OnDateTimeSetListener mOnDateTimeSetListener;
+ private DateTimePicker mDateTimePicker;
+
+ public interface OnDateTimeSetListener {
+ void OnDateTimeSet(AlertDialog dialog, long date);
+ }
+
+ public DateTimePickerDialog(Context context, long date) {
+ super(context);
+ mDateTimePicker = new DateTimePicker(context);
+ setView(mDateTimePicker);
+ mDateTimePicker.setOnDateTimeChangedListener(new OnDateTimeChangedListener() {
+ public void onDateTimeChanged(DateTimePicker view, int year, int month,
+ int dayOfMonth, int hourOfDay, int minute) {
+ mDate.set(Calendar.YEAR, year);
+ mDate.set(Calendar.MONTH, month);
+ mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth);
+ mDate.set(Calendar.HOUR_OF_DAY, hourOfDay);
+ mDate.set(Calendar.MINUTE, minute);
+ updateTitle(mDate.getTimeInMillis());
+ }
+ });
+ mDate.setTimeInMillis(date);
+ mDate.set(Calendar.SECOND, 0);
+ mDateTimePicker.setCurrentDate(mDate.getTimeInMillis());
+ setButton(context.getString(R.string.datetime_dialog_ok), this);
+ setButton2(context.getString(R.string.datetime_dialog_cancel), (OnClickListener)null);
+ set24HourView(DateFormat.is24HourFormat(this.getContext()));
+ updateTitle(mDate.getTimeInMillis());
+ }
+
+ public void set24HourView(boolean is24HourView) {
+ mIs24HourView = is24HourView;
+ }
+
+ public void setOnDateTimeSetListener(OnDateTimeSetListener callBack) {
+ mOnDateTimeSetListener = callBack;
+ }
+
+ private void updateTitle(long date) {
+ int flag =
+ DateUtils.FORMAT_SHOW_YEAR |
+ DateUtils.FORMAT_SHOW_DATE |
+ DateUtils.FORMAT_SHOW_TIME;
+ flag |= mIs24HourView ? DateUtils.FORMAT_24HOUR : DateUtils.FORMAT_24HOUR;
+ setTitle(DateUtils.formatDateTime(this.getContext(), date, flag));
+ }
+
+ public void onClick(DialogInterface arg0, int arg1) {
+ if (mOnDateTimeSetListener != null) {
+ mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis());
+ }
+ }
+
+}
\ No newline at end of file
diff --git a/app/src/main/java/net/micode/notes/ui/DropdownMenu.java b/app/src/main/java/net/micode/notes/ui/DropdownMenu.java
new file mode 100644
index 0000000..613dc74
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/ui/DropdownMenu.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.content.Context;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.Button;
+import android.widget.PopupMenu;
+import android.widget.PopupMenu.OnMenuItemClickListener;
+
+import net.micode.notes.R;
+
+public class DropdownMenu {
+ private Button mButton;
+ private PopupMenu mPopupMenu;
+ private Menu mMenu;
+
+ public DropdownMenu(Context context, Button button, int menuId) {
+ mButton = button;
+ mButton.setBackgroundResource(R.drawable.dropdown_icon);
+ mPopupMenu = new PopupMenu(context, mButton);
+ mMenu = mPopupMenu.getMenu();
+ mPopupMenu.getMenuInflater().inflate(menuId, mMenu);
+ mButton.setOnClickListener(new OnClickListener() {
+ public void onClick(View v) {
+ mPopupMenu.show();
+ }
+ });
+ }
+
+ public void setOnDropdownMenuItemClickListener(OnMenuItemClickListener listener) {
+ if (mPopupMenu != null) {
+ mPopupMenu.setOnMenuItemClickListener(listener);
+ }
+ }
+
+ public MenuItem findItem(int id) {
+ return mMenu.findItem(id);
+ }
+
+ public void setTitle(CharSequence title) {
+ mButton.setText(title);
+ }
+}
diff --git a/app/src/main/java/net/micode/notes/ui/FoldersListAdapter.java b/app/src/main/java/net/micode/notes/ui/FoldersListAdapter.java
new file mode 100644
index 0000000..96b77da
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/ui/FoldersListAdapter.java
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.content.Context;
+import android.database.Cursor;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.CursorAdapter;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.NoteColumns;
+
+
+public class FoldersListAdapter extends CursorAdapter {
+ public static final String [] PROJECTION = {
+ NoteColumns.ID,
+ NoteColumns.SNIPPET
+ };
+
+ public static final int ID_COLUMN = 0;
+ public static final int NAME_COLUMN = 1;
+
+ public FoldersListAdapter(Context context, Cursor c) {
+ super(context, c);
+ // TODO Auto-generated constructor stub
+ }
+
+ @Override
+ public View newView(Context context, Cursor cursor, ViewGroup parent) {
+ return new FolderListItem(context);
+ }
+
+ @Override
+ public void bindView(View view, Context context, Cursor cursor) {
+ if (view instanceof FolderListItem) {
+ String folderName = (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context
+ .getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN);
+ ((FolderListItem) view).bind(folderName);
+ }
+ }
+
+ public String getFolderName(Context context, int position) {
+ Cursor cursor = (Cursor) getItem(position);
+ return (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context
+ .getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN);
+ }
+
+ private class FolderListItem extends LinearLayout {
+ private TextView mName;
+
+ public FolderListItem(Context context) {
+ super(context);
+ inflate(context, R.layout.folder_list_item, this);
+ mName = (TextView) findViewById(R.id.tv_folder_name);
+ }
+
+ public void bind(String name) {
+ mName.setText(name);
+ }
+ }
+
+}
diff --git a/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java b/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java
new file mode 100644
index 0000000..8389b1d
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java
@@ -0,0 +1,873 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.app.Activity;
+import android.app.AlarmManager;
+import android.app.AlertDialog;
+import android.app.PendingIntent;
+import android.app.SearchManager;
+import android.appwidget.AppWidgetManager;
+import android.content.ContentUris;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.graphics.Paint;
+import android.os.Bundle;
+import android.preference.PreferenceManager;
+import android.text.Spannable;
+import android.text.SpannableString;
+import android.text.TextUtils;
+import android.text.format.DateUtils;
+import android.text.style.BackgroundColorSpan;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.WindowManager;
+import android.widget.CheckBox;
+import android.widget.CompoundButton;
+import android.widget.CompoundButton.OnCheckedChangeListener;
+import android.widget.EditText;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.TextNote;
+import net.micode.notes.model.WorkingNote;
+import net.micode.notes.model.WorkingNote.NoteSettingChangedListener;
+import net.micode.notes.tool.DataUtils;
+import net.micode.notes.tool.ResourceParser;
+import net.micode.notes.tool.ResourceParser.TextAppearanceResources;
+import net.micode.notes.ui.DateTimePickerDialog.OnDateTimeSetListener;
+import net.micode.notes.ui.NoteEditText.OnTextViewChangeListener;
+import net.micode.notes.widget.NoteWidgetProvider_2x;
+import net.micode.notes.widget.NoteWidgetProvider_4x;
+
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+
+public class NoteEditActivity extends Activity implements OnClickListener,
+ NoteSettingChangedListener, OnTextViewChangeListener {
+ private class HeadViewHolder {
+ public TextView tvModified;
+
+ public ImageView ivAlertIcon;
+
+ public TextView tvAlertDate;
+
+ public ImageView ibSetBgColor;
+ }
+
+ private static final Map sBgSelectorBtnsMap = new HashMap();
+ static {
+ sBgSelectorBtnsMap.put(R.id.iv_bg_yellow, ResourceParser.YELLOW);
+ sBgSelectorBtnsMap.put(R.id.iv_bg_red, ResourceParser.RED);
+ sBgSelectorBtnsMap.put(R.id.iv_bg_blue, ResourceParser.BLUE);
+ sBgSelectorBtnsMap.put(R.id.iv_bg_green, ResourceParser.GREEN);
+ sBgSelectorBtnsMap.put(R.id.iv_bg_white, ResourceParser.WHITE);
+ }
+
+ private static final Map sBgSelectorSelectionMap = new HashMap();
+ static {
+ sBgSelectorSelectionMap.put(ResourceParser.YELLOW, R.id.iv_bg_yellow_select);
+ sBgSelectorSelectionMap.put(ResourceParser.RED, R.id.iv_bg_red_select);
+ sBgSelectorSelectionMap.put(ResourceParser.BLUE, R.id.iv_bg_blue_select);
+ sBgSelectorSelectionMap.put(ResourceParser.GREEN, R.id.iv_bg_green_select);
+ sBgSelectorSelectionMap.put(ResourceParser.WHITE, R.id.iv_bg_white_select);
+ }
+
+ private static final Map sFontSizeBtnsMap = new HashMap();
+ static {
+ sFontSizeBtnsMap.put(R.id.ll_font_large, ResourceParser.TEXT_LARGE);
+ sFontSizeBtnsMap.put(R.id.ll_font_small, ResourceParser.TEXT_SMALL);
+ sFontSizeBtnsMap.put(R.id.ll_font_normal, ResourceParser.TEXT_MEDIUM);
+ sFontSizeBtnsMap.put(R.id.ll_font_super, ResourceParser.TEXT_SUPER);
+ }
+
+ private static final Map sFontSelectorSelectionMap = new HashMap();
+ static {
+ sFontSelectorSelectionMap.put(ResourceParser.TEXT_LARGE, R.id.iv_large_select);
+ sFontSelectorSelectionMap.put(ResourceParser.TEXT_SMALL, R.id.iv_small_select);
+ sFontSelectorSelectionMap.put(ResourceParser.TEXT_MEDIUM, R.id.iv_medium_select);
+ sFontSelectorSelectionMap.put(ResourceParser.TEXT_SUPER, R.id.iv_super_select);
+ }
+
+ private static final String TAG = "NoteEditActivity";
+
+ private HeadViewHolder mNoteHeaderHolder;
+
+ private View mHeadViewPanel;
+
+ private View mNoteBgColorSelector;
+
+ private View mFontSizeSelector;
+
+ private EditText mNoteEditor;
+
+ private View mNoteEditorPanel;
+
+ private WorkingNote mWorkingNote;
+
+ private SharedPreferences mSharedPrefs;
+ private int mFontSizeId;
+
+ private static final String PREFERENCE_FONT_SIZE = "pref_font_size";
+
+ private static final int SHORTCUT_ICON_TITLE_MAX_LEN = 10;
+
+ public static final String TAG_CHECKED = String.valueOf('\u221A');
+ public static final String TAG_UNCHECKED = String.valueOf('\u25A1');
+
+ private LinearLayout mEditTextList;
+
+ private String mUserQuery;
+ private Pattern mPattern;
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ this.setContentView(R.layout.note_edit);
+
+ if (savedInstanceState == null && !initActivityState(getIntent())) {
+ finish();
+ return;
+ }
+ initResources();
+ }
+
+ /**
+ * Current activity may be killed when the memory is low. Once it is killed, for another time
+ * user load this activity, we should restore the former state
+ */
+ @Override
+ protected void onRestoreInstanceState(Bundle savedInstanceState) {
+ super.onRestoreInstanceState(savedInstanceState);
+ if (savedInstanceState != null && savedInstanceState.containsKey(Intent.EXTRA_UID)) {
+ Intent intent = new Intent(Intent.ACTION_VIEW);
+ intent.putExtra(Intent.EXTRA_UID, savedInstanceState.getLong(Intent.EXTRA_UID));
+ if (!initActivityState(intent)) {
+ finish();
+ return;
+ }
+ Log.d(TAG, "Restoring from killed activity");
+ }
+ }
+
+ private boolean initActivityState(Intent intent) {
+ /**
+ * If the user specified the {@link Intent#ACTION_VIEW} but not provided with id,
+ * then jump to the NotesListActivity
+ */
+ mWorkingNote = null;
+ if (TextUtils.equals(Intent.ACTION_VIEW, intent.getAction())) {
+ long noteId = intent.getLongExtra(Intent.EXTRA_UID, 0);
+ mUserQuery = "";
+
+ /**
+ * Starting from the searched result
+ */
+ if (intent.hasExtra(SearchManager.EXTRA_DATA_KEY)) {
+ noteId = Long.parseLong(intent.getStringExtra(SearchManager.EXTRA_DATA_KEY));
+ mUserQuery = intent.getStringExtra(SearchManager.USER_QUERY);
+ }
+
+ if (!DataUtils.visibleInNoteDatabase(getContentResolver(), noteId, Notes.TYPE_NOTE)) {
+ Intent jump = new Intent(this, NotesListActivity.class);
+ startActivity(jump);
+ showToast(R.string.error_note_not_exist);
+ finish();
+ return false;
+ } else {
+ mWorkingNote = WorkingNote.load(this, noteId);
+ if (mWorkingNote == null) {
+ Log.e(TAG, "load note failed with note id" + noteId);
+ finish();
+ return false;
+ }
+ }
+ getWindow().setSoftInputMode(
+ WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN
+ | WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
+ } else if(TextUtils.equals(Intent.ACTION_INSERT_OR_EDIT, intent.getAction())) {
+ // New note
+ long folderId = intent.getLongExtra(Notes.INTENT_EXTRA_FOLDER_ID, 0);
+ int widgetId = intent.getIntExtra(Notes.INTENT_EXTRA_WIDGET_ID,
+ AppWidgetManager.INVALID_APPWIDGET_ID);
+ int widgetType = intent.getIntExtra(Notes.INTENT_EXTRA_WIDGET_TYPE,
+ Notes.TYPE_WIDGET_INVALIDE);
+ int bgResId = intent.getIntExtra(Notes.INTENT_EXTRA_BACKGROUND_ID,
+ ResourceParser.getDefaultBgId(this));
+
+ // Parse call-record note
+ String phoneNumber = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
+ long callDate = intent.getLongExtra(Notes.INTENT_EXTRA_CALL_DATE, 0);
+ if (callDate != 0 && phoneNumber != null) {
+ if (TextUtils.isEmpty(phoneNumber)) {
+ Log.w(TAG, "The call record number is null");
+ }
+ long noteId = 0;
+ if ((noteId = DataUtils.getNoteIdByPhoneNumberAndCallDate(getContentResolver(),
+ phoneNumber, callDate)) > 0) {
+ mWorkingNote = WorkingNote.load(this, noteId);
+ if (mWorkingNote == null) {
+ Log.e(TAG, "load call note failed with note id" + noteId);
+ finish();
+ return false;
+ }
+ } else {
+ mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId,
+ widgetType, bgResId);
+ mWorkingNote.convertToCallNote(phoneNumber, callDate);
+ }
+ } else {
+ mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId, widgetType,
+ bgResId);
+ }
+
+ getWindow().setSoftInputMode(
+ WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE
+ | WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
+ } else {
+ Log.e(TAG, "Intent not specified action, should not support");
+ finish();
+ return false;
+ }
+ mWorkingNote.setOnSettingStatusChangedListener(this);
+ return true;
+ }
+
+ @Override
+ protected void onResume() {
+ super.onResume();
+ initNoteScreen();
+ }
+
+ private void initNoteScreen() {
+ mNoteEditor.setTextAppearance(this, TextAppearanceResources
+ .getTexAppearanceResource(mFontSizeId));
+ if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {
+ switchToListMode(mWorkingNote.getContent());
+ } else {
+ mNoteEditor.setText(getHighlightQueryResult(mWorkingNote.getContent(), mUserQuery));
+ mNoteEditor.setSelection(mNoteEditor.getText().length());
+ }
+ for (Integer id : sBgSelectorSelectionMap.keySet()) {
+ findViewById(sBgSelectorSelectionMap.get(id)).setVisibility(View.GONE);
+ }
+ mHeadViewPanel.setBackgroundResource(mWorkingNote.getTitleBgResId());
+ mNoteEditorPanel.setBackgroundResource(mWorkingNote.getBgColorResId());
+
+ mNoteHeaderHolder.tvModified.setText(DateUtils.formatDateTime(this,
+ mWorkingNote.getModifiedDate(), DateUtils.FORMAT_SHOW_DATE
+ | DateUtils.FORMAT_NUMERIC_DATE | DateUtils.FORMAT_SHOW_TIME
+ | DateUtils.FORMAT_SHOW_YEAR));
+
+ /**
+ * TODO: Add the menu for setting alert. Currently disable it because the DateTimePicker
+ * is not ready
+ */
+ showAlertHeader();
+ }
+
+ private void showAlertHeader() {
+ if (mWorkingNote.hasClockAlert()) {
+ long time = System.currentTimeMillis();
+ if (time > mWorkingNote.getAlertDate()) {
+ mNoteHeaderHolder.tvAlertDate.setText(R.string.note_alert_expired);
+ } else {
+ mNoteHeaderHolder.tvAlertDate.setText(DateUtils.getRelativeTimeSpanString(
+ mWorkingNote.getAlertDate(), time, DateUtils.MINUTE_IN_MILLIS));
+ }
+ mNoteHeaderHolder.tvAlertDate.setVisibility(View.VISIBLE);
+ mNoteHeaderHolder.ivAlertIcon.setVisibility(View.VISIBLE);
+ } else {
+ mNoteHeaderHolder.tvAlertDate.setVisibility(View.GONE);
+ mNoteHeaderHolder.ivAlertIcon.setVisibility(View.GONE);
+ };
+ }
+
+ @Override
+ protected void onNewIntent(Intent intent) {
+ super.onNewIntent(intent);
+ initActivityState(intent);
+ }
+
+ @Override
+ protected void onSaveInstanceState(Bundle outState) {
+ super.onSaveInstanceState(outState);
+ /**
+ * For new note without note id, we should firstly save it to
+ * generate a id. If the editing note is not worth saving, there
+ * is no id which is equivalent to create new note
+ */
+ if (!mWorkingNote.existInDatabase()) {
+ saveNote();
+ }
+ outState.putLong(Intent.EXTRA_UID, mWorkingNote.getNoteId());
+ Log.d(TAG, "Save working note id: " + mWorkingNote.getNoteId() + " onSaveInstanceState");
+ }
+
+ @Override
+ public boolean dispatchTouchEvent(MotionEvent ev) {
+ if (mNoteBgColorSelector.getVisibility() == View.VISIBLE
+ && !inRangeOfView(mNoteBgColorSelector, ev)) {
+ mNoteBgColorSelector.setVisibility(View.GONE);
+ return true;
+ }
+
+ if (mFontSizeSelector.getVisibility() == View.VISIBLE
+ && !inRangeOfView(mFontSizeSelector, ev)) {
+ mFontSizeSelector.setVisibility(View.GONE);
+ return true;
+ }
+ return super.dispatchTouchEvent(ev);
+ }
+
+ private boolean inRangeOfView(View view, MotionEvent ev) {
+ int []location = new int[2];
+ view.getLocationOnScreen(location);
+ int x = location[0];
+ int y = location[1];
+ if (ev.getX() < x
+ || ev.getX() > (x + view.getWidth())
+ || ev.getY() < y
+ || ev.getY() > (y + view.getHeight())) {
+ return false;
+ }
+ return true;
+ }
+
+ private void initResources() {
+ mHeadViewPanel = findViewById(R.id.note_title);
+ mNoteHeaderHolder = new HeadViewHolder();
+ mNoteHeaderHolder.tvModified = (TextView) findViewById(R.id.tv_modified_date);
+ mNoteHeaderHolder.ivAlertIcon = (ImageView) findViewById(R.id.iv_alert_icon);
+ mNoteHeaderHolder.tvAlertDate = (TextView) findViewById(R.id.tv_alert_date);
+ mNoteHeaderHolder.ibSetBgColor = (ImageView) findViewById(R.id.btn_set_bg_color);
+ mNoteHeaderHolder.ibSetBgColor.setOnClickListener(this);
+ mNoteEditor = (EditText) findViewById(R.id.note_edit_view);
+ mNoteEditorPanel = findViewById(R.id.sv_note_edit);
+ mNoteBgColorSelector = findViewById(R.id.note_bg_color_selector);
+ for (int id : sBgSelectorBtnsMap.keySet()) {
+ ImageView iv = (ImageView) findViewById(id);
+ iv.setOnClickListener(this);
+ }
+
+ mFontSizeSelector = findViewById(R.id.font_size_selector);
+ for (int id : sFontSizeBtnsMap.keySet()) {
+ View view = findViewById(id);
+ view.setOnClickListener(this);
+ };
+ mSharedPrefs = PreferenceManager.getDefaultSharedPreferences(this);
+ mFontSizeId = mSharedPrefs.getInt(PREFERENCE_FONT_SIZE, ResourceParser.BG_DEFAULT_FONT_SIZE);
+ /**
+ * HACKME: Fix bug of store the resource id in shared preference.
+ * The id may larger than the length of resources, in this case,
+ * return the {@link ResourceParser#BG_DEFAULT_FONT_SIZE}
+ */
+ if(mFontSizeId >= TextAppearanceResources.getResourcesSize()) {
+ mFontSizeId = ResourceParser.BG_DEFAULT_FONT_SIZE;
+ }
+ mEditTextList = (LinearLayout) findViewById(R.id.note_edit_list);
+ }
+
+ @Override
+ protected void onPause() {
+ super.onPause();
+ if(saveNote()) {
+ Log.d(TAG, "Note data was saved with length:" + mWorkingNote.getContent().length());
+ }
+ clearSettingState();
+ }
+
+ private void updateWidget() {
+ Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
+ if (mWorkingNote.getWidgetType() == Notes.TYPE_WIDGET_2X) {
+ intent.setClass(this, NoteWidgetProvider_2x.class);
+ } else if (mWorkingNote.getWidgetType() == Notes.TYPE_WIDGET_4X) {
+ intent.setClass(this, NoteWidgetProvider_4x.class);
+ } else {
+ Log.e(TAG, "Unspported widget type");
+ return;
+ }
+
+ intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[] {
+ mWorkingNote.getWidgetId()
+ });
+
+ sendBroadcast(intent);
+ setResult(RESULT_OK, intent);
+ }
+
+ public void onClick(View v) {
+ int id = v.getId();
+ if (id == R.id.btn_set_bg_color) {
+ mNoteBgColorSelector.setVisibility(View.VISIBLE);
+ findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility(
+ View.VISIBLE);
+ } else if (sBgSelectorBtnsMap.containsKey(id)) {
+ findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility(
+ View.GONE);
+ mWorkingNote.setBgColorId(sBgSelectorBtnsMap.get(id));
+ mNoteBgColorSelector.setVisibility(View.GONE);
+ } else if (sFontSizeBtnsMap.containsKey(id)) {
+ findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.GONE);
+ mFontSizeId = sFontSizeBtnsMap.get(id);
+ mSharedPrefs.edit().putInt(PREFERENCE_FONT_SIZE, mFontSizeId).commit();
+ findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.VISIBLE);
+ if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {
+ getWorkingText();
+ switchToListMode(mWorkingNote.getContent());
+ } else {
+ mNoteEditor.setTextAppearance(this,
+ TextAppearanceResources.getTexAppearanceResource(mFontSizeId));
+ }
+ mFontSizeSelector.setVisibility(View.GONE);
+ }
+ }
+
+ @Override
+ public void onBackPressed() {
+ if(clearSettingState()) {
+ return;
+ }
+
+ saveNote();
+ super.onBackPressed();
+ }
+
+ private boolean clearSettingState() {
+ if (mNoteBgColorSelector.getVisibility() == View.VISIBLE) {
+ mNoteBgColorSelector.setVisibility(View.GONE);
+ return true;
+ } else if (mFontSizeSelector.getVisibility() == View.VISIBLE) {
+ mFontSizeSelector.setVisibility(View.GONE);
+ return true;
+ }
+ return false;
+ }
+
+ public void onBackgroundColorChanged() {
+ findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility(
+ View.VISIBLE);
+ mNoteEditorPanel.setBackgroundResource(mWorkingNote.getBgColorResId());
+ mHeadViewPanel.setBackgroundResource(mWorkingNote.getTitleBgResId());
+ }
+
+ @Override
+ public boolean onPrepareOptionsMenu(Menu menu) {
+ if (isFinishing()) {
+ return true;
+ }
+ clearSettingState();
+ menu.clear();
+ if (mWorkingNote.getFolderId() == Notes.ID_CALL_RECORD_FOLDER) {
+ getMenuInflater().inflate(R.menu.call_note_edit, menu);
+ } else {
+ getMenuInflater().inflate(R.menu.note_edit, menu);
+ }
+ if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {
+ menu.findItem(R.id.menu_list_mode).setTitle(R.string.menu_normal_mode);
+ } else {
+ menu.findItem(R.id.menu_list_mode).setTitle(R.string.menu_list_mode);
+ }
+ if (mWorkingNote.hasClockAlert()) {
+ menu.findItem(R.id.menu_alert).setVisible(false);
+ } else {
+ menu.findItem(R.id.menu_delete_remind).setVisible(false);
+ }
+ return true;
+ }
+
+ @Override
+ public boolean onOptionsItemSelected(MenuItem item) {
+ switch (item.getItemId()) {
+ case R.id.menu_new_note:
+ createNewNote();
+ break;
+ case R.id.menu_delete:
+ AlertDialog.Builder builder = new AlertDialog.Builder(this);
+ builder.setTitle(getString(R.string.alert_title_delete));
+ builder.setIcon(android.R.drawable.ic_dialog_alert);
+ builder.setMessage(getString(R.string.alert_message_delete_note));
+ builder.setPositiveButton(android.R.string.ok,
+ new DialogInterface.OnClickListener() {
+ public void onClick(DialogInterface dialog, int which) {
+ deleteCurrentNote();
+ finish();
+ }
+ });
+ builder.setNegativeButton(android.R.string.cancel, null);
+ builder.show();
+ break;
+ case R.id.menu_font_size:
+ mFontSizeSelector.setVisibility(View.VISIBLE);
+ findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.VISIBLE);
+ break;
+ case R.id.menu_list_mode:
+ mWorkingNote.setCheckListMode(mWorkingNote.getCheckListMode() == 0 ?
+ TextNote.MODE_CHECK_LIST : 0);
+ break;
+ case R.id.menu_share:
+ getWorkingText();
+ sendTo(this, mWorkingNote.getContent());
+ break;
+ case R.id.menu_send_to_desktop:
+ sendToDesktop();
+ break;
+ case R.id.menu_alert:
+ setReminder();
+ break;
+ case R.id.menu_delete_remind:
+ mWorkingNote.setAlertDate(0, false);
+ break;
+ default:
+ break;
+ }
+ return true;
+ }
+
+ private void setReminder() {
+ DateTimePickerDialog d = new DateTimePickerDialog(this, System.currentTimeMillis());
+ d.setOnDateTimeSetListener(new OnDateTimeSetListener() {
+ public void OnDateTimeSet(AlertDialog dialog, long date) {
+ mWorkingNote.setAlertDate(date , true);
+ }
+ });
+ d.show();
+ }
+
+ /**
+ * Share note to apps that support {@link Intent#ACTION_SEND} action
+ * and {@text/plain} type
+ */
+ private void sendTo(Context context, String info) {
+ Intent intent = new Intent(Intent.ACTION_SEND);
+ intent.putExtra(Intent.EXTRA_TEXT, info);
+ intent.setType("text/plain");
+ context.startActivity(intent);
+ }
+
+ private void createNewNote() {
+ // Firstly, save current editing notes
+ saveNote();
+
+ // For safety, start a new NoteEditActivity
+ finish();
+ Intent intent = new Intent(this, NoteEditActivity.class);
+ intent.setAction(Intent.ACTION_INSERT_OR_EDIT);
+ intent.putExtra(Notes.INTENT_EXTRA_FOLDER_ID, mWorkingNote.getFolderId());
+ startActivity(intent);
+ }
+
+ private void deleteCurrentNote() {
+ if (mWorkingNote.existInDatabase()) {
+ HashSet ids = new HashSet();
+ long id = mWorkingNote.getNoteId();
+ if (id != Notes.ID_ROOT_FOLDER) {
+ ids.add(id);
+ } else {
+ Log.d(TAG, "Wrong note id, should not happen");
+ }
+ if (!isSyncMode()) {
+ if (!DataUtils.batchDeleteNotes(getContentResolver(), ids)) {
+ Log.e(TAG, "Delete Note error");
+ }
+ } else {
+ if (!DataUtils.batchMoveToFolder(getContentResolver(), ids, Notes.ID_TRASH_FOLER)) {
+ Log.e(TAG, "Move notes to trash folder error, should not happens");
+ }
+ }
+ }
+ mWorkingNote.markDeleted(true);
+ }
+
+ private boolean isSyncMode() {
+ return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0;
+ }
+
+ public void onClockAlertChanged(long date, boolean set) {
+ /**
+ * User could set clock to an unsaved note, so before setting the
+ * alert clock, we should save the note first
+ */
+ if (!mWorkingNote.existInDatabase()) {
+ saveNote();
+ }
+ if (mWorkingNote.getNoteId() > 0) {
+ Intent intent = new Intent(this, AlarmReceiver.class);
+ intent.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mWorkingNote.getNoteId()));
+ PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0);
+ AlarmManager alarmManager = ((AlarmManager) getSystemService(ALARM_SERVICE));
+ showAlertHeader();
+ if(!set) {
+ alarmManager.cancel(pendingIntent);
+ } else {
+ alarmManager.set(AlarmManager.RTC_WAKEUP, date, pendingIntent);
+ }
+ } else {
+ /**
+ * There is the condition that user has input nothing (the note is
+ * not worthy saving), we have no note id, remind the user that he
+ * should input something
+ */
+ Log.e(TAG, "Clock alert setting error");
+ showToast(R.string.error_note_empty_for_clock);
+ }
+ }
+
+ public void onWidgetChanged() {
+ updateWidget();
+ }
+
+ public void onEditTextDelete(int index, String text) {
+ int childCount = mEditTextList.getChildCount();
+ if (childCount == 1) {
+ return;
+ }
+
+ for (int i = index + 1; i < childCount; i++) {
+ ((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text))
+ .setIndex(i - 1);
+ }
+
+ mEditTextList.removeViewAt(index);
+ NoteEditText edit = null;
+ if(index == 0) {
+ edit = (NoteEditText) mEditTextList.getChildAt(0).findViewById(
+ R.id.et_edit_text);
+ } else {
+ edit = (NoteEditText) mEditTextList.getChildAt(index - 1).findViewById(
+ R.id.et_edit_text);
+ }
+ int length = edit.length();
+ edit.append(text);
+ edit.requestFocus();
+ edit.setSelection(length);
+ }
+
+ public void onEditTextEnter(int index, String text) {
+ /**
+ * Should not happen, check for debug
+ */
+ if(index > mEditTextList.getChildCount()) {
+ Log.e(TAG, "Index out of mEditTextList boundrary, should not happen");
+ }
+
+ View view = getListItem(text, index);
+ mEditTextList.addView(view, index);
+ NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text);
+ edit.requestFocus();
+ edit.setSelection(0);
+ for (int i = index + 1; i < mEditTextList.getChildCount(); i++) {
+ ((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text))
+ .setIndex(i);
+ }
+ }
+
+ private void switchToListMode(String text) {
+ mEditTextList.removeAllViews();
+ String[] items = text.split("\n");
+ int index = 0;
+ for (String item : items) {
+ if(!TextUtils.isEmpty(item)) {
+ mEditTextList.addView(getListItem(item, index));
+ index++;
+ }
+ }
+ mEditTextList.addView(getListItem("", index));
+ mEditTextList.getChildAt(index).findViewById(R.id.et_edit_text).requestFocus();
+
+ mNoteEditor.setVisibility(View.GONE);
+ mEditTextList.setVisibility(View.VISIBLE);
+ }
+
+ private Spannable getHighlightQueryResult(String fullText, String userQuery) {
+ SpannableString spannable = new SpannableString(fullText == null ? "" : fullText);
+ if (!TextUtils.isEmpty(userQuery)) {
+ mPattern = Pattern.compile(userQuery);
+ Matcher m = mPattern.matcher(fullText);
+ int start = 0;
+ while (m.find(start)) {
+ spannable.setSpan(
+ new BackgroundColorSpan(this.getResources().getColor(
+ R.color.user_query_highlight)), m.start(), m.end(),
+ Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
+ start = m.end();
+ }
+ }
+ return spannable;
+ }
+
+ private View getListItem(String item, int index) {
+ View view = LayoutInflater.from(this).inflate(R.layout.note_edit_list_item, null);
+ final NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text);
+ edit.setTextAppearance(this, TextAppearanceResources.getTexAppearanceResource(mFontSizeId));
+ CheckBox cb = ((CheckBox) view.findViewById(R.id.cb_edit_item));
+ cb.setOnCheckedChangeListener(new OnCheckedChangeListener() {
+ public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
+ if (isChecked) {
+ edit.setPaintFlags(edit.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);
+ } else {
+ edit.setPaintFlags(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG);
+ }
+ }
+ });
+
+ if (item.startsWith(TAG_CHECKED)) {
+ cb.setChecked(true);
+ edit.setPaintFlags(edit.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);
+ item = item.substring(TAG_CHECKED.length(), item.length()).trim();
+ } else if (item.startsWith(TAG_UNCHECKED)) {
+ cb.setChecked(false);
+ edit.setPaintFlags(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG);
+ item = item.substring(TAG_UNCHECKED.length(), item.length()).trim();
+ }
+
+ edit.setOnTextViewChangeListener(this);
+ edit.setIndex(index);
+ edit.setText(getHighlightQueryResult(item, mUserQuery));
+ return view;
+ }
+
+ public void onTextChange(int index, boolean hasText) {
+ if (index >= mEditTextList.getChildCount()) {
+ Log.e(TAG, "Wrong index, should not happen");
+ return;
+ }
+ if(hasText) {
+ mEditTextList.getChildAt(index).findViewById(R.id.cb_edit_item).setVisibility(View.VISIBLE);
+ } else {
+ mEditTextList.getChildAt(index).findViewById(R.id.cb_edit_item).setVisibility(View.GONE);
+ }
+ }
+
+ public void onCheckListModeChanged(int oldMode, int newMode) {
+ if (newMode == TextNote.MODE_CHECK_LIST) {
+ switchToListMode(mNoteEditor.getText().toString());
+ } else {
+ if (!getWorkingText()) {
+ mWorkingNote.setWorkingText(mWorkingNote.getContent().replace(TAG_UNCHECKED + " ",
+ ""));
+ }
+ mNoteEditor.setText(getHighlightQueryResult(mWorkingNote.getContent(), mUserQuery));
+ mEditTextList.setVisibility(View.GONE);
+ mNoteEditor.setVisibility(View.VISIBLE);
+ }
+ }
+
+ private boolean getWorkingText() {
+ boolean hasChecked = false;
+ if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {
+ StringBuilder sb = new StringBuilder();
+ for (int i = 0; i < mEditTextList.getChildCount(); i++) {
+ View view = mEditTextList.getChildAt(i);
+ NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text);
+ if (!TextUtils.isEmpty(edit.getText())) {
+ if (((CheckBox) view.findViewById(R.id.cb_edit_item)).isChecked()) {
+ sb.append(TAG_CHECKED).append(" ").append(edit.getText()).append("\n");
+ hasChecked = true;
+ } else {
+ sb.append(TAG_UNCHECKED).append(" ").append(edit.getText()).append("\n");
+ }
+ }
+ }
+ mWorkingNote.setWorkingText(sb.toString());
+ } else {
+ mWorkingNote.setWorkingText(mNoteEditor.getText().toString());
+ }
+ return hasChecked;
+ }
+
+ private boolean saveNote() {
+ getWorkingText();
+ boolean saved = mWorkingNote.saveNote();
+ if (saved) {
+ /**
+ * There are two modes from List view to edit view, open one note,
+ * create/edit a node. Opening node requires to the original
+ * position in the list when back from edit view, while creating a
+ * new node requires to the top of the list. This code
+ * {@link #RESULT_OK} is used to identify the create/edit state
+ */
+ setResult(RESULT_OK);
+ }
+ return saved;
+ }
+
+ private void sendToDesktop() {
+ /**
+ * Before send message to home, we should make sure that current
+ * editing note is exists in databases. So, for new note, firstly
+ * save it
+ */
+ if (!mWorkingNote.existInDatabase()) {
+ saveNote();
+ }
+
+ if (mWorkingNote.getNoteId() > 0) {
+ Intent sender = new Intent();
+ Intent shortcutIntent = new Intent(this, NoteEditActivity.class);
+ shortcutIntent.setAction(Intent.ACTION_VIEW);
+ shortcutIntent.putExtra(Intent.EXTRA_UID, mWorkingNote.getNoteId());
+ sender.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent);
+ sender.putExtra(Intent.EXTRA_SHORTCUT_NAME,
+ makeShortcutIconTitle(mWorkingNote.getContent()));
+ sender.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE,
+ Intent.ShortcutIconResource.fromContext(this, R.drawable.icon_app));
+ sender.putExtra("duplicate", true);
+ sender.setAction("com.android.launcher.action.INSTALL_SHORTCUT");
+ showToast(R.string.info_note_enter_desktop);
+ sendBroadcast(sender);
+ } else {
+ /**
+ * There is the condition that user has input nothing (the note is
+ * not worthy saving), we have no note id, remind the user that he
+ * should input something
+ */
+ Log.e(TAG, "Send to desktop error");
+ showToast(R.string.error_note_empty_for_send_to_desktop);
+ }
+ }
+
+ private String makeShortcutIconTitle(String content) {
+ content = content.replace(TAG_CHECKED, "");
+ content = content.replace(TAG_UNCHECKED, "");
+ return content.length() > SHORTCUT_ICON_TITLE_MAX_LEN ? content.substring(0,
+ SHORTCUT_ICON_TITLE_MAX_LEN) : content;
+ }
+
+ private void showToast(int resId) {
+ showToast(resId, Toast.LENGTH_SHORT);
+ }
+
+ private void showToast(int resId, int duration) {
+ Toast.makeText(this, resId, duration).show();
+ }
+}
diff --git a/app/src/main/java/net/micode/notes/ui/NoteEditText.java b/app/src/main/java/net/micode/notes/ui/NoteEditText.java
new file mode 100644
index 0000000..2afe2a8
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/ui/NoteEditText.java
@@ -0,0 +1,217 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.content.Context;
+import android.graphics.Rect;
+import android.text.Layout;
+import android.text.Selection;
+import android.text.Spanned;
+import android.text.TextUtils;
+import android.text.style.URLSpan;
+import android.util.AttributeSet;
+import android.util.Log;
+import android.view.ContextMenu;
+import android.view.KeyEvent;
+import android.view.MenuItem;
+import android.view.MenuItem.OnMenuItemClickListener;
+import android.view.MotionEvent;
+import android.widget.EditText;
+
+import net.micode.notes.R;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class NoteEditText extends EditText {
+ private static final String TAG = "NoteEditText";
+ private int mIndex;
+ private int mSelectionStartBeforeDelete;
+
+ private static final String SCHEME_TEL = "tel:" ;
+ private static final String SCHEME_HTTP = "http:" ;
+ private static final String SCHEME_EMAIL = "mailto:" ;
+
+ private static final Map sSchemaActionResMap = new HashMap();
+ static {
+ sSchemaActionResMap.put(SCHEME_TEL, R.string.note_link_tel);
+ sSchemaActionResMap.put(SCHEME_HTTP, R.string.note_link_web);
+ sSchemaActionResMap.put(SCHEME_EMAIL, R.string.note_link_email);
+ }
+
+ /**
+ * Call by the {@link NoteEditActivity} to delete or add edit text
+ */
+ public interface OnTextViewChangeListener {
+ /**
+ * Delete current edit text when {@link KeyEvent#KEYCODE_DEL} happens
+ * and the text is null
+ */
+ void onEditTextDelete(int index, String text);
+
+ /**
+ * Add edit text after current edit text when {@link KeyEvent#KEYCODE_ENTER}
+ * happen
+ */
+ void onEditTextEnter(int index, String text);
+
+ /**
+ * Hide or show item option when text change
+ */
+ void onTextChange(int index, boolean hasText);
+ }
+
+ private OnTextViewChangeListener mOnTextViewChangeListener;
+
+ public NoteEditText(Context context) {
+ super(context, null);
+ mIndex = 0;
+ }
+
+ public void setIndex(int index) {
+ mIndex = index;
+ }
+
+ public void setOnTextViewChangeListener(OnTextViewChangeListener listener) {
+ mOnTextViewChangeListener = listener;
+ }
+
+ public NoteEditText(Context context, AttributeSet attrs) {
+ super(context, attrs, android.R.attr.editTextStyle);
+ }
+
+ public NoteEditText(Context context, AttributeSet attrs, int defStyle) {
+ super(context, attrs, defStyle);
+ // TODO Auto-generated constructor stub
+ }
+
+ @Override
+ public boolean onTouchEvent(MotionEvent event) {
+ switch (event.getAction()) {
+ case MotionEvent.ACTION_DOWN:
+
+ int x = (int) event.getX();
+ int y = (int) event.getY();
+ x -= getTotalPaddingLeft();
+ y -= getTotalPaddingTop();
+ x += getScrollX();
+ y += getScrollY();
+
+ Layout layout = getLayout();
+ int line = layout.getLineForVertical(y);
+ int off = layout.getOffsetForHorizontal(line, x);
+ Selection.setSelection(getText(), off);
+ break;
+ }
+
+ return super.onTouchEvent(event);
+ }
+
+ @Override
+ public boolean onKeyDown(int keyCode, KeyEvent event) {
+ switch (keyCode) {
+ case KeyEvent.KEYCODE_ENTER:
+ if (mOnTextViewChangeListener != null) {
+ return false;
+ }
+ break;
+ case KeyEvent.KEYCODE_DEL:
+ mSelectionStartBeforeDelete = getSelectionStart();
+ break;
+ default:
+ break;
+ }
+ return super.onKeyDown(keyCode, event);
+ }
+
+ @Override
+ public boolean onKeyUp(int keyCode, KeyEvent event) {
+ switch(keyCode) {
+ case KeyEvent.KEYCODE_DEL:
+ if (mOnTextViewChangeListener != null) {
+ if (0 == mSelectionStartBeforeDelete && mIndex != 0) {
+ mOnTextViewChangeListener.onEditTextDelete(mIndex, getText().toString());
+ return true;
+ }
+ } else {
+ Log.d(TAG, "OnTextViewChangeListener was not seted");
+ }
+ break;
+ case KeyEvent.KEYCODE_ENTER:
+ if (mOnTextViewChangeListener != null) {
+ int selectionStart = getSelectionStart();
+ String text = getText().subSequence(selectionStart, length()).toString();
+ setText(getText().subSequence(0, selectionStart));
+ mOnTextViewChangeListener.onEditTextEnter(mIndex + 1, text);
+ } else {
+ Log.d(TAG, "OnTextViewChangeListener was not seted");
+ }
+ break;
+ default:
+ break;
+ }
+ return super.onKeyUp(keyCode, event);
+ }
+
+ @Override
+ protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) {
+ if (mOnTextViewChangeListener != null) {
+ if (!focused && TextUtils.isEmpty(getText())) {
+ mOnTextViewChangeListener.onTextChange(mIndex, false);
+ } else {
+ mOnTextViewChangeListener.onTextChange(mIndex, true);
+ }
+ }
+ super.onFocusChanged(focused, direction, previouslyFocusedRect);
+ }
+
+ @Override
+ protected void onCreateContextMenu(ContextMenu menu) {
+ if (getText() instanceof Spanned) {
+ int selStart = getSelectionStart();
+ int selEnd = getSelectionEnd();
+
+ int min = Math.min(selStart, selEnd);
+ int max = Math.max(selStart, selEnd);
+
+ final URLSpan[] urls = ((Spanned) getText()).getSpans(min, max, URLSpan.class);
+ if (urls.length == 1) {
+ int defaultResId = 0;
+ for(String schema: sSchemaActionResMap.keySet()) {
+ if(urls[0].getURL().indexOf(schema) >= 0) {
+ defaultResId = sSchemaActionResMap.get(schema);
+ break;
+ }
+ }
+
+ if (defaultResId == 0) {
+ defaultResId = R.string.note_link_other;
+ }
+
+ menu.add(0, 0, 0, defaultResId).setOnMenuItemClickListener(
+ new OnMenuItemClickListener() {
+ public boolean onMenuItemClick(MenuItem item) {
+ // goto a new intent
+ urls[0].onClick(NoteEditText.this);
+ return true;
+ }
+ });
+ }
+ }
+ super.onCreateContextMenu(menu);
+ }
+}
diff --git a/app/src/main/java/net/micode/notes/ui/NoteItemData.java b/app/src/main/java/net/micode/notes/ui/NoteItemData.java
new file mode 100644
index 0000000..0f5a878
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/ui/NoteItemData.java
@@ -0,0 +1,224 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.content.Context;
+import android.database.Cursor;
+import android.text.TextUtils;
+
+import net.micode.notes.data.Contact;
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.tool.DataUtils;
+
+
+public class NoteItemData {
+ static final String [] PROJECTION = new String [] {
+ NoteColumns.ID,
+ NoteColumns.ALERTED_DATE,
+ NoteColumns.BG_COLOR_ID,
+ NoteColumns.CREATED_DATE,
+ NoteColumns.HAS_ATTACHMENT,
+ NoteColumns.MODIFIED_DATE,
+ NoteColumns.NOTES_COUNT,
+ NoteColumns.PARENT_ID,
+ NoteColumns.SNIPPET,
+ NoteColumns.TYPE,
+ NoteColumns.WIDGET_ID,
+ NoteColumns.WIDGET_TYPE,
+ };
+
+ private static final int ID_COLUMN = 0;
+ private static final int ALERTED_DATE_COLUMN = 1;
+ private static final int BG_COLOR_ID_COLUMN = 2;
+ private static final int CREATED_DATE_COLUMN = 3;
+ private static final int HAS_ATTACHMENT_COLUMN = 4;
+ private static final int MODIFIED_DATE_COLUMN = 5;
+ private static final int NOTES_COUNT_COLUMN = 6;
+ private static final int PARENT_ID_COLUMN = 7;
+ private static final int SNIPPET_COLUMN = 8;
+ private static final int TYPE_COLUMN = 9;
+ private static final int WIDGET_ID_COLUMN = 10;
+ private static final int WIDGET_TYPE_COLUMN = 11;
+
+ private long mId;
+ private long mAlertDate;
+ private int mBgColorId;
+ private long mCreatedDate;
+ private boolean mHasAttachment;
+ private long mModifiedDate;
+ private int mNotesCount;
+ private long mParentId;
+ private String mSnippet;
+ private int mType;
+ private int mWidgetId;
+ private int mWidgetType;
+ private String mName;
+ private String mPhoneNumber;
+
+ private boolean mIsLastItem;
+ private boolean mIsFirstItem;
+ private boolean mIsOnlyOneItem;
+ private boolean mIsOneNoteFollowingFolder;
+ private boolean mIsMultiNotesFollowingFolder;
+
+ public NoteItemData(Context context, Cursor cursor) {
+ mId = cursor.getLong(ID_COLUMN);
+ mAlertDate = cursor.getLong(ALERTED_DATE_COLUMN);
+ mBgColorId = cursor.getInt(BG_COLOR_ID_COLUMN);
+ mCreatedDate = cursor.getLong(CREATED_DATE_COLUMN);
+ mHasAttachment = (cursor.getInt(HAS_ATTACHMENT_COLUMN) > 0) ? true : false;
+ mModifiedDate = cursor.getLong(MODIFIED_DATE_COLUMN);
+ mNotesCount = cursor.getInt(NOTES_COUNT_COLUMN);
+ mParentId = cursor.getLong(PARENT_ID_COLUMN);
+ mSnippet = cursor.getString(SNIPPET_COLUMN);
+ mSnippet = mSnippet.replace(NoteEditActivity.TAG_CHECKED, "").replace(
+ NoteEditActivity.TAG_UNCHECKED, "");
+ mType = cursor.getInt(TYPE_COLUMN);
+ mWidgetId = cursor.getInt(WIDGET_ID_COLUMN);
+ mWidgetType = cursor.getInt(WIDGET_TYPE_COLUMN);
+
+ mPhoneNumber = "";
+ if (mParentId == Notes.ID_CALL_RECORD_FOLDER) {
+ mPhoneNumber = DataUtils.getCallNumberByNoteId(context.getContentResolver(), mId);
+ if (!TextUtils.isEmpty(mPhoneNumber)) {
+ mName = Contact.getContact(context, mPhoneNumber);
+ if (mName == null) {
+ mName = mPhoneNumber;
+ }
+ }
+ }
+
+ if (mName == null) {
+ mName = "";
+ }
+ checkPostion(cursor);
+ }
+
+ private void checkPostion(Cursor cursor) {
+ mIsLastItem = cursor.isLast() ? true : false;
+ mIsFirstItem = cursor.isFirst() ? true : false;
+ mIsOnlyOneItem = (cursor.getCount() == 1);
+ mIsMultiNotesFollowingFolder = false;
+ mIsOneNoteFollowingFolder = false;
+
+ if (mType == Notes.TYPE_NOTE && !mIsFirstItem) {
+ int position = cursor.getPosition();
+ if (cursor.moveToPrevious()) {
+ if (cursor.getInt(TYPE_COLUMN) == Notes.TYPE_FOLDER
+ || cursor.getInt(TYPE_COLUMN) == Notes.TYPE_SYSTEM) {
+ if (cursor.getCount() > (position + 1)) {
+ mIsMultiNotesFollowingFolder = true;
+ } else {
+ mIsOneNoteFollowingFolder = true;
+ }
+ }
+ if (!cursor.moveToNext()) {
+ throw new IllegalStateException("cursor move to previous but can't move back");
+ }
+ }
+ }
+ }
+
+ public boolean isOneFollowingFolder() {
+ return mIsOneNoteFollowingFolder;
+ }
+
+ public boolean isMultiFollowingFolder() {
+ return mIsMultiNotesFollowingFolder;
+ }
+
+ public boolean isLast() {
+ return mIsLastItem;
+ }
+
+ public String getCallName() {
+ return mName;
+ }
+
+ public boolean isFirst() {
+ return mIsFirstItem;
+ }
+
+ public boolean isSingle() {
+ return mIsOnlyOneItem;
+ }
+
+ public long getId() {
+ return mId;
+ }
+
+ public long getAlertDate() {
+ return mAlertDate;
+ }
+
+ public long getCreatedDate() {
+ return mCreatedDate;
+ }
+
+ public boolean hasAttachment() {
+ return mHasAttachment;
+ }
+
+ public long getModifiedDate() {
+ return mModifiedDate;
+ }
+
+ public int getBgColorId() {
+ return mBgColorId;
+ }
+
+ public long getParentId() {
+ return mParentId;
+ }
+
+ public int getNotesCount() {
+ return mNotesCount;
+ }
+
+ public long getFolderId () {
+ return mParentId;
+ }
+
+ public int getType() {
+ return mType;
+ }
+
+ public int getWidgetType() {
+ return mWidgetType;
+ }
+
+ public int getWidgetId() {
+ return mWidgetId;
+ }
+
+ public String getSnippet() {
+ return mSnippet;
+ }
+
+ public boolean hasAlert() {
+ return (mAlertDate > 0);
+ }
+
+ public boolean isCallRecord() {
+ return (mParentId == Notes.ID_CALL_RECORD_FOLDER && !TextUtils.isEmpty(mPhoneNumber));
+ }
+
+ public static int getNoteType(Cursor cursor) {
+ return cursor.getInt(TYPE_COLUMN);
+ }
+}
diff --git a/app/src/main/java/net/micode/notes/ui/NotesListActivity.java b/app/src/main/java/net/micode/notes/ui/NotesListActivity.java
new file mode 100644
index 0000000..0052618
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/ui/NotesListActivity.java
@@ -0,0 +1,973 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.appwidget.AppWidgetManager;
+import android.content.AsyncQueryHandler;
+import android.content.ContentResolver;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.database.Cursor;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.preference.PreferenceManager;
+import android.text.Editable;
+import android.text.TextUtils;
+import android.text.TextWatcher;
+import android.util.Log;
+import android.view.ActionMode;
+import android.view.ContextMenu;
+import android.view.ContextMenu.ContextMenuInfo;
+import android.view.Display;
+import android.view.HapticFeedbackConstants;
+import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.MenuItem.OnMenuItemClickListener;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.View.OnCreateContextMenuListener;
+import android.view.View.OnTouchListener;
+import android.view.inputmethod.InputMethodManager;
+import android.widget.AdapterView;
+import android.widget.AdapterView.OnItemClickListener;
+import android.widget.AdapterView.OnItemLongClickListener;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.ListView;
+import android.widget.PopupMenu;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.gtask.remote.GTaskSyncService;
+import net.micode.notes.model.WorkingNote;
+import net.micode.notes.tool.BackupUtils;
+import net.micode.notes.tool.DataUtils;
+import net.micode.notes.tool.ResourceParser;
+import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute;
+import net.micode.notes.widget.NoteWidgetProvider_2x;
+import net.micode.notes.widget.NoteWidgetProvider_4x;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.HashSet;
+
+public class NotesListActivity extends Activity implements OnClickListener, OnItemLongClickListener {
+ private static final int FOLDER_NOTE_LIST_QUERY_TOKEN = 0;
+
+ private static final int FOLDER_LIST_QUERY_TOKEN = 1;
+
+ private static final int MENU_FOLDER_DELETE = 0;
+
+ private static final int MENU_FOLDER_VIEW = 1;
+
+ private static final int MENU_FOLDER_CHANGE_NAME = 2;
+
+ private static final String PREFERENCE_ADD_INTRODUCTION = "net.micode.notes.introduction";
+
+ private enum ListEditState {
+ NOTE_LIST, SUB_FOLDER, CALL_RECORD_FOLDER
+ }
+
+ private ListEditState mState;
+
+ private BackgroundQueryHandler mBackgroundQueryHandler;
+
+ private NotesListAdapter mNotesListAdapter;
+
+ private ListView mNotesListView;
+
+ private Button mAddNewNote;
+
+ private boolean mDispatch;
+
+ private int mOriginY;
+
+ private int mDispatchY;
+
+ private TextView mTitleBar;
+
+ private long mCurrentFolderId;
+
+ private ContentResolver mContentResolver;
+
+ private ModeCallback mModeCallBack;
+
+ private static final String TAG = "NotesListActivity";
+
+ public static final int NOTES_LISTVIEW_SCROLL_RATE = 30;
+
+ private NoteItemData mFocusNoteDataItem;
+
+ private static final String NORMAL_SELECTION = NoteColumns.PARENT_ID + "=?";
+
+ private static final String ROOT_FOLDER_SELECTION = "(" + NoteColumns.TYPE + "<>"
+ + Notes.TYPE_SYSTEM + " AND " + NoteColumns.PARENT_ID + "=?)" + " OR ("
+ + NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER + " AND "
+ + NoteColumns.NOTES_COUNT + ">0)";
+
+ private final static int REQUEST_CODE_OPEN_NODE = 102;
+ private final static int REQUEST_CODE_NEW_NODE = 103;
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.note_list);
+ initResources();
+
+ /**
+ * Insert an introduction when user firstly use this application
+ */
+ setAppInfoFromRawRes();
+ }
+
+ @Override
+ protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+ if (resultCode == RESULT_OK
+ && (requestCode == REQUEST_CODE_OPEN_NODE || requestCode == REQUEST_CODE_NEW_NODE)) {
+ mNotesListAdapter.changeCursor(null);
+ } else {
+ super.onActivityResult(requestCode, resultCode, data);
+ }
+ }
+
+ private void setAppInfoFromRawRes() {
+ SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);
+ if (!sp.getBoolean(PREFERENCE_ADD_INTRODUCTION, false)) {
+ StringBuilder sb = new StringBuilder();
+ InputStream in = null;
+ try {
+ in = getResources().openRawResource(R.raw.introduction);
+ if (in != null) {
+ InputStreamReader isr = new InputStreamReader(in);
+ BufferedReader br = new BufferedReader(isr);
+ char [] buf = new char[1024];
+ int len = 0;
+ while ((len = br.read(buf)) > 0) {
+ sb.append(buf, 0, len);
+ }
+ } else {
+ Log.e(TAG, "Read introduction file error");
+ return;
+ }
+ } catch (IOException e) {
+ e.printStackTrace();
+ return;
+ } finally {
+ if(in != null) {
+ try {
+ in.close();
+ } catch (IOException e) {
+ // TODO Auto-generated catch block
+ e.printStackTrace();
+ }
+ }
+ }
+
+ WorkingNote note = WorkingNote.createEmptyNote(this, Notes.ID_ROOT_FOLDER,
+ AppWidgetManager.INVALID_APPWIDGET_ID, Notes.TYPE_WIDGET_INVALIDE,
+ ResourceParser.RED);
+ note.setWorkingText(sb.toString());
+ if (note.saveNote()) {
+ sp.edit().putBoolean(PREFERENCE_ADD_INTRODUCTION, true).commit();
+ } else {
+ Log.e(TAG, "Save introduction note error");
+ return;
+ }
+ }
+ }
+
+ @Override
+ protected void onStart() {
+ super.onStart();
+ startAsyncNotesListQuery();
+ }
+
+ private void initResources() {
+ mContentResolver = this.getContentResolver();
+ mBackgroundQueryHandler = new BackgroundQueryHandler(this.getContentResolver());
+ mCurrentFolderId = Notes.ID_ROOT_FOLDER;
+ mNotesListView = (ListView) findViewById(R.id.notes_list);
+ mNotesListView.addFooterView(LayoutInflater.from(this).inflate(R.layout.note_list_footer, null),
+ null, false);
+ mNotesListView.setOnItemClickListener(new OnListItemClickListener());
+ mNotesListView.setOnItemLongClickListener(this);
+ mNotesListAdapter = new NotesListAdapter(this);
+ mNotesListView.setAdapter(mNotesListAdapter);
+ mAddNewNote = (Button) findViewById(R.id.btn_new_note);
+ mAddNewNote.setOnClickListener(this);
+ mAddNewNote.setOnTouchListener(new NewNoteOnTouchListener());
+ mDispatch = false;
+ mDispatchY = 0;
+ mOriginY = 0;
+ mTitleBar = (TextView) findViewById(R.id.tv_title_bar);
+ mState = ListEditState.NOTE_LIST;
+ mModeCallBack = new ModeCallback();
+ }
+
+ private class ModeCallback implements ListView.MultiChoiceModeListener, OnMenuItemClickListener {
+ private DropdownMenu mDropDownMenu;
+ private ActionMode mActionMode;
+ private MenuItem mMoveMenu;
+
+ public boolean onCreateActionMode(ActionMode mode, Menu menu) {
+ getMenuInflater().inflate(R.menu.note_list_options, menu);
+ menu.findItem(R.id.delete).setOnMenuItemClickListener(this);
+ mMoveMenu = menu.findItem(R.id.move);
+ if (mFocusNoteDataItem.getParentId() == Notes.ID_CALL_RECORD_FOLDER
+ || DataUtils.getUserFolderCount(mContentResolver) == 0) {
+ mMoveMenu.setVisible(false);
+ } else {
+ mMoveMenu.setVisible(true);
+ mMoveMenu.setOnMenuItemClickListener(this);
+ }
+ mActionMode = mode;
+ mNotesListAdapter.setChoiceMode(true);
+ mNotesListView.setLongClickable(false);
+ mAddNewNote.setVisibility(View.GONE);
+
+ View customView = LayoutInflater.from(NotesListActivity.this).inflate(
+ R.layout.note_list_dropdown_menu, null);
+ mode.setCustomView(customView);
+ mDropDownMenu = new DropdownMenu(NotesListActivity.this,
+ (Button) customView.findViewById(R.id.selection_menu),
+ R.menu.note_list_dropdown);
+ mDropDownMenu.setOnDropdownMenuItemClickListener(new PopupMenu.OnMenuItemClickListener(){
+ public boolean onMenuItemClick(MenuItem item) {
+ mNotesListAdapter.selectAll(!mNotesListAdapter.isAllSelected());
+ updateMenu();
+ return true;
+ }
+
+ });
+ return true;
+ }
+
+ private void updateMenu() {
+ int selectedCount = mNotesListAdapter.getSelectedCount();
+ // Update dropdown menu
+ String format = getResources().getString(R.string.menu_select_title, selectedCount);
+ mDropDownMenu.setTitle(format);
+ MenuItem item = mDropDownMenu.findItem(R.id.action_select_all);
+ if (item != null) {
+ if (mNotesListAdapter.isAllSelected()) {
+ item.setChecked(true);
+ item.setTitle(R.string.menu_deselect_all);
+ } else {
+ item.setChecked(false);
+ item.setTitle(R.string.menu_select_all);
+ }
+ }
+ }
+
+ public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
+ // TODO Auto-generated method stub
+ return false;
+ }
+
+ public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
+ // TODO Auto-generated method stub
+ return false;
+ }
+
+ public void onDestroyActionMode(ActionMode mode) {
+ mNotesListAdapter.setChoiceMode(false);
+ mNotesListView.setLongClickable(true);
+ mAddNewNote.setVisibility(View.VISIBLE);
+ }
+
+ public void finishActionMode() {
+ mActionMode.finish();
+ }
+
+ public void onItemCheckedStateChanged(ActionMode mode, int position, long id,
+ boolean checked) {
+ mNotesListAdapter.setCheckedItem(position, checked);
+ updateMenu();
+ }
+
+ public boolean onMenuItemClick(MenuItem item) {
+ if (mNotesListAdapter.getSelectedCount() == 0) {
+ Toast.makeText(NotesListActivity.this, getString(R.string.menu_select_none),
+ Toast.LENGTH_SHORT).show();
+ return true;
+ }
+
+ switch (item.getItemId()) {
+ case R.id.delete:
+ AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this);
+ builder.setTitle(getString(R.string.alert_title_delete));
+ builder.setIcon(android.R.drawable.ic_dialog_alert);
+ builder.setMessage(getString(R.string.alert_message_delete_notes,
+ mNotesListAdapter.getSelectedCount()));
+ builder.setPositiveButton(android.R.string.ok,
+ new DialogInterface.OnClickListener() {
+ public void onClick(DialogInterface dialog,
+ int which) {
+ batchDelete();
+ }
+ });
+ builder.setNegativeButton(android.R.string.cancel, null);
+ builder.show();
+ break;
+ case R.id.move:
+ startQueryDestinationFolders();
+ break;
+ default:
+ return false;
+ }
+ return true;
+ }
+ }
+
+ private class NewNoteOnTouchListener implements OnTouchListener {
+
+ public boolean onTouch(View v, MotionEvent event) {
+ switch (event.getAction()) {
+ case MotionEvent.ACTION_DOWN: {
+ Display display = getWindowManager().getDefaultDisplay();
+ int screenHeight = display.getHeight();
+ int newNoteViewHeight = mAddNewNote.getHeight();
+ int start = screenHeight - newNoteViewHeight;
+ int eventY = start + (int) event.getY();
+ /**
+ * Minus TitleBar's height
+ */
+ if (mState == ListEditState.SUB_FOLDER) {
+ eventY -= mTitleBar.getHeight();
+ start -= mTitleBar.getHeight();
+ }
+ /**
+ * HACKME:When click the transparent part of "New Note" button, dispatch
+ * the event to the list view behind this button. The transparent part of
+ * "New Note" button could be expressed by formula y=-0.12x+94（Unit:pixel）
+ * and the line top of the button. The coordinate based on left of the "New
+ * Note" button. The 94 represents maximum height of the transparent part.
+ * Notice that, if the background of the button changes, the formula should
+ * also change. This is very bad, just for the UI designer's strong requirement.
+ */
+ if (event.getY() < (event.getX() * (-0.12) + 94)) {
+ View view = mNotesListView.getChildAt(mNotesListView.getChildCount() - 1
+ - mNotesListView.getFooterViewsCount());
+ if (view != null && view.getBottom() > start
+ && (view.getTop() < (start + 94))) {
+ mOriginY = (int) event.getY();
+ mDispatchY = eventY;
+ event.setLocation(event.getX(), mDispatchY);
+ mDispatch = true;
+ return mNotesListView.dispatchTouchEvent(event);
+ }
+ }
+ break;
+ }
+ case MotionEvent.ACTION_MOVE: {
+ if (mDispatch) {
+ mDispatchY += (int) event.getY() - mOriginY;
+ event.setLocation(event.getX(), mDispatchY);
+ return mNotesListView.dispatchTouchEvent(event);
+ }
+ break;
+ }
+ default: {
+ if (mDispatch) {
+ event.setLocation(event.getX(), mDispatchY);
+ mDispatch = false;
+ return mNotesListView.dispatchTouchEvent(event);
+ }
+ break;
+ }
+ }
+ return false;
+ }
+
+ };
+
+ private void startAsyncNotesListQuery() {
+ String selection = (mCurrentFolderId == Notes.ID_ROOT_FOLDER) ? ROOT_FOLDER_SELECTION
+ : NORMAL_SELECTION;
+ mBackgroundQueryHandler.startQuery(FOLDER_NOTE_LIST_QUERY_TOKEN, null,
+ Notes.CONTENT_NOTE_URI, NoteItemData.PROJECTION, selection, new String[] {
+ String.valueOf(mCurrentFolderId)
+ }, NoteColumns.TYPE + " DESC," + NoteColumns.MODIFIED_DATE + " DESC");
+ }
+
+ private final class BackgroundQueryHandler extends AsyncQueryHandler {
+ public BackgroundQueryHandler(ContentResolver contentResolver) {
+ super(contentResolver);
+ }
+
+ @Override
+ protected void onQueryComplete(int token, Object cookie, Cursor cursor) {
+ switch (token) {
+ case FOLDER_NOTE_LIST_QUERY_TOKEN:
+ mNotesListAdapter.changeCursor(cursor);
+ break;
+ case FOLDER_LIST_QUERY_TOKEN:
+ if (cursor != null && cursor.getCount() > 0) {
+ showFolderListMenu(cursor);
+ } else {
+ Log.e(TAG, "Query folder failed");
+ }
+ break;
+ default:
+ return;
+ }
+ }
+ }
+
+ private void showFolderListMenu(Cursor cursor) {
+ AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this);
+ builder.setTitle(R.string.menu_title_select_folder);
+ final FoldersListAdapter adapter = new FoldersListAdapter(this, cursor);
+ builder.setAdapter(adapter, new DialogInterface.OnClickListener() {
+
+ public void onClick(DialogInterface dialog, int which) {
+ DataUtils.batchMoveToFolder(mContentResolver,
+ mNotesListAdapter.getSelectedItemIds(), adapter.getItemId(which));
+ Toast.makeText(
+ NotesListActivity.this,
+ getString(R.string.format_move_notes_to_folder,
+ mNotesListAdapter.getSelectedCount(),
+ adapter.getFolderName(NotesListActivity.this, which)),
+ Toast.LENGTH_SHORT).show();
+ mModeCallBack.finishActionMode();
+ }
+ });
+ builder.show();
+ }
+
+ private void createNewNote() {
+ Intent intent = new Intent(this, NoteEditActivity.class);
+ intent.setAction(Intent.ACTION_INSERT_OR_EDIT);
+ intent.putExtra(Notes.INTENT_EXTRA_FOLDER_ID, mCurrentFolderId);
+ this.startActivityForResult(intent, REQUEST_CODE_NEW_NODE);
+ }
+
+ private void batchDelete() {
+ new AsyncTask>() {
+ protected HashSet doInBackground(Void... unused) {
+ HashSet widgets = mNotesListAdapter.getSelectedWidget();
+ if (!isSyncMode()) {
+ if (mCurrentFolderId == Notes.ID_TRASH_FOLER){
+ // if in trash, delete notes directly
+ if (DataUtils.batchDeleteNotes(mContentResolver, mNotesListAdapter
+ .getSelectedItemIds())) {
+ } else {
+ Log.e(TAG, "Delete notes error, should not happens");
+ }
+ }
+ else{
+ //move to trash
+ if (!DataUtils.batchMoveToFolder(mContentResolver, mNotesListAdapter
+ .getSelectedItemIds(), Notes.ID_TRASH_FOLER)) {
+ Log.e(TAG, "Move notes to trash folder error, should not happens");
+ }
+ }
+ }else{
+ // in sync mode, we'll move the deleted note into the trash
+ // folder
+ if (!DataUtils.batchMoveToFolder(mContentResolver, mNotesListAdapter
+ .getSelectedItemIds(), Notes.ID_TRASH_FOLER)) {
+ Log.e(TAG, "Move notes to trash folder error, should not happens");
+ }
+ }
+ return widgets;
+ }
+
+ @Override
+ protected void onPostExecute(HashSet widgets) {
+ if (widgets != null) {
+ for (AppWidgetAttribute widget : widgets) {
+ if (widget.widgetId != AppWidgetManager.INVALID_APPWIDGET_ID
+ && widget.widgetType != Notes.TYPE_WIDGET_INVALIDE) {
+ updateWidget(widget.widgetId, widget.widgetType);
+ }
+ }
+ }
+ mModeCallBack.finishActionMode();
+ }
+ }.execute();
+ }
+
+ private void deleteFolder(long folderId) {
+ if (folderId == Notes.ID_ROOT_FOLDER) {
+ Log.e(TAG, "Wrong folder id, should not happen " + folderId);
+ return;
+ }
+
+ HashSet ids = new HashSet();
+ ids.add(folderId);
+ HashSet widgets = DataUtils.getFolderNoteWidget(mContentResolver,
+ folderId);
+ if (!isSyncMode()) {
+ // if not synced, delete folder directly
+ DataUtils.batchDeleteNotes(mContentResolver, ids);
+ } else {
+ // in sync mode, we'll move the deleted folder into the trash folder
+ DataUtils.batchMoveToFolder(mContentResolver, ids, Notes.ID_TRASH_FOLER);
+ }
+ if (widgets != null) {
+ for (AppWidgetAttribute widget : widgets) {
+ if (widget.widgetId != AppWidgetManager.INVALID_APPWIDGET_ID
+ && widget.widgetType != Notes.TYPE_WIDGET_INVALIDE) {
+ updateWidget(widget.widgetId, widget.widgetType);
+ }
+ }
+ }
+ }
+
+ private void openNode(NoteItemData data) {
+ Intent intent = new Intent(this, NoteEditActivity.class);
+ intent.setAction(Intent.ACTION_VIEW);
+ intent.putExtra(Intent.EXTRA_UID, data.getId());
+ this.startActivityForResult(intent, REQUEST_CODE_OPEN_NODE);
+ }
+
+ private void openFolder(NoteItemData data) {
+ mCurrentFolderId = data.getId();
+ startAsyncNotesListQuery();
+ if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) {
+ mState = ListEditState.CALL_RECORD_FOLDER;
+ mAddNewNote.setVisibility(View.GONE);
+ } else {
+ mState = ListEditState.SUB_FOLDER;
+ }
+ if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) {
+ mTitleBar.setText(R.string.call_record_folder_name);
+ } else {
+ mTitleBar.setText(data.getSnippet());
+ }
+ mTitleBar.setVisibility(View.VISIBLE);
+ }
+
+ public void onClick(View v) {
+ switch (v.getId()) {
+ case R.id.btn_new_note:
+ createNewNote();
+ break;
+ default:
+ break;
+ }
+ }
+
+ private void showSoftInput() {
+ InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
+ if (inputMethodManager != null) {
+ inputMethodManager.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);
+ }
+ }
+
+ private void hideSoftInput(View view) {
+ InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
+ inputMethodManager.hideSoftInputFromWindow(view.getWindowToken(), 0);
+ }
+
+ private void showCreateOrModifyFolderDialog(final boolean create) {
+ final AlertDialog.Builder builder = new AlertDialog.Builder(this);
+ View view = LayoutInflater.from(this).inflate(R.layout.dialog_edit_text, null);
+ final EditText etName = (EditText) view.findViewById(R.id.et_foler_name);
+ showSoftInput();
+ if (!create) {
+ if (mFocusNoteDataItem != null) {
+ etName.setText(mFocusNoteDataItem.getSnippet());
+ builder.setTitle(getString(R.string.menu_folder_change_name));
+ } else {
+ Log.e(TAG, "The long click data item is null");
+ return;
+ }
+ } else {
+ etName.setText("");
+ builder.setTitle(this.getString(R.string.menu_create_folder));
+ }
+
+ builder.setPositiveButton(android.R.string.ok, null);
+ builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
+ public void onClick(DialogInterface dialog, int which) {
+ hideSoftInput(etName);
+ }
+ });
+
+ final Dialog dialog = builder.setView(view).show();
+ final Button positive = (Button)dialog.findViewById(android.R.id.button1);
+ positive.setOnClickListener(new OnClickListener() {
+ public void onClick(View v) {
+ hideSoftInput(etName);
+ String name = etName.getText().toString();
+ if (DataUtils.checkVisibleFolderName(mContentResolver, name)) {
+ Toast.makeText(NotesListActivity.this, getString(R.string.folder_exist, name),
+ Toast.LENGTH_LONG).show();
+ etName.setSelection(0, etName.length());
+ return;
+ }
+ if (!create) {
+ if (!TextUtils.isEmpty(name)) {
+ ContentValues values = new ContentValues();
+ values.put(NoteColumns.SNIPPET, name);
+ values.put(NoteColumns.TYPE, Notes.TYPE_FOLDER);
+ values.put(NoteColumns.LOCAL_MODIFIED, 1);
+ mContentResolver.update(Notes.CONTENT_NOTE_URI, values, NoteColumns.ID
+ + "=?", new String[] {
+ String.valueOf(mFocusNoteDataItem.getId())
+ });
+ }
+ } else if (!TextUtils.isEmpty(name)) {
+ ContentValues values = new ContentValues();
+ values.put(NoteColumns.SNIPPET, name);
+ values.put(NoteColumns.TYPE, Notes.TYPE_FOLDER);
+ mContentResolver.insert(Notes.CONTENT_NOTE_URI, values);
+ }
+ dialog.dismiss();
+ }
+ });
+
+ if (TextUtils.isEmpty(etName.getText())) {
+ positive.setEnabled(false);
+ }
+ /**
+ * When the name edit text is null, disable the positive button
+ */
+ etName.addTextChangedListener(new TextWatcher() {
+ public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+ // TODO Auto-generated method stub
+
+ }
+
+ public void onTextChanged(CharSequence s, int start, int before, int count) {
+ if (TextUtils.isEmpty(etName.getText())) {
+ positive.setEnabled(false);
+ } else {
+ positive.setEnabled(true);
+ }
+ }
+
+ public void afterTextChanged(Editable s) {
+ // TODO Auto-generated method stub
+
+ }
+ });
+ }
+
+ @Override
+ public void onBackPressed() {
+ switch (mState) {
+ case SUB_FOLDER:
+ mCurrentFolderId = Notes.ID_ROOT_FOLDER;
+ mState = ListEditState.NOTE_LIST;
+ startAsyncNotesListQuery();
+ mTitleBar.setVisibility(View.GONE);
+ break;
+ case CALL_RECORD_FOLDER:
+ mCurrentFolderId = Notes.ID_ROOT_FOLDER;
+ mState = ListEditState.NOTE_LIST;
+ mAddNewNote.setVisibility(View.VISIBLE);
+ mTitleBar.setVisibility(View.GONE);
+ startAsyncNotesListQuery();
+ break;
+ case NOTE_LIST:
+ super.onBackPressed();
+ break;
+ default:
+ break;
+ }
+ }
+
+ private void updateWidget(int appWidgetId, int appWidgetType) {
+ Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
+ if (appWidgetType == Notes.TYPE_WIDGET_2X) {
+ intent.setClass(this, NoteWidgetProvider_2x.class);
+ } else if (appWidgetType == Notes.TYPE_WIDGET_4X) {
+ intent.setClass(this, NoteWidgetProvider_4x.class);
+ } else {
+ Log.e(TAG, "Unspported widget type");
+ return;
+ }
+
+ intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[] {
+ appWidgetId
+ });
+
+ sendBroadcast(intent);
+ setResult(RESULT_OK, intent);
+ }
+
+ private final OnCreateContextMenuListener mFolderOnCreateContextMenuListener = new OnCreateContextMenuListener() {
+ public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
+ if (mFocusNoteDataItem != null) {
+ menu.setHeaderTitle(mFocusNoteDataItem.getSnippet());
+ menu.add(0, MENU_FOLDER_VIEW, 0, R.string.menu_folder_view);
+ menu.add(0, MENU_FOLDER_DELETE, 0, R.string.menu_folder_delete);
+ menu.add(0, MENU_FOLDER_CHANGE_NAME, 0, R.string.menu_folder_change_name);
+ }
+ }
+ };
+
+ @Override
+ public void onContextMenuClosed(Menu menu) {
+ if (mNotesListView != null) {
+ mNotesListView.setOnCreateContextMenuListener(null);
+ }
+ super.onContextMenuClosed(menu);
+ }
+
+ @Override
+ public boolean onContextItemSelected(MenuItem item) {
+ if (mFocusNoteDataItem == null) {
+ Log.e(TAG, "The long click data item is null");
+ return false;
+ }
+ switch (item.getItemId()) {
+ case MENU_FOLDER_VIEW:
+ openFolder(mFocusNoteDataItem);
+ break;
+ case MENU_FOLDER_DELETE:
+ AlertDialog.Builder builder = new AlertDialog.Builder(this);
+ builder.setTitle(getString(R.string.alert_title_delete));
+ builder.setIcon(android.R.drawable.ic_dialog_alert);
+ builder.setMessage(getString(R.string.alert_message_delete_folder));
+ builder.setPositiveButton(android.R.string.ok,
+ new DialogInterface.OnClickListener() {
+ public void onClick(DialogInterface dialog, int which) {
+ deleteFolder(mFocusNoteDataItem.getId());
+ }
+ });
+ builder.setNegativeButton(android.R.string.cancel, null);
+ builder.show();
+ break;
+ case MENU_FOLDER_CHANGE_NAME:
+ showCreateOrModifyFolderDialog(false);
+ break;
+ default:
+ break;
+ }
+
+ return true;
+ }
+
+ @Override
+ public boolean onPrepareOptionsMenu(Menu menu) {
+ menu.clear();
+ if (mState == ListEditState.NOTE_LIST) {
+ getMenuInflater().inflate(R.menu.note_list, menu);
+ // set sync or sync_cancel
+ menu.findItem(R.id.menu_sync).setTitle(
+ GTaskSyncService.isSyncing() ? R.string.menu_sync_cancel : R.string.menu_sync);
+ } else if (mState == ListEditState.SUB_FOLDER) {
+ getMenuInflater().inflate(R.menu.sub_folder, menu);
+ } else if (mState == ListEditState.CALL_RECORD_FOLDER) {
+ getMenuInflater().inflate(R.menu.call_record_folder, menu);
+ } else {
+ Log.e(TAG, "Wrong state:" + mState);
+ }
+ return true;
+ }
+
+ @Override
+ public boolean onOptionsItemSelected(MenuItem item) {
+ switch (item.getItemId()) {
+ case R.id.menu_new_folder: {
+ showCreateOrModifyFolderDialog(true);
+ break;
+ }
+ case R.id.menu_export_text: {
+ exportNoteToText();
+ break;
+ }
+ case R.id.menu_sync: {
+ if (isSyncMode()) {
+ if (TextUtils.equals(item.getTitle(), getString(R.string.menu_sync))) {
+ GTaskSyncService.startSync(this);
+ } else {
+ GTaskSyncService.cancelSync(this);
+ }
+ } else {
+ startPreferenceActivity();
+ }
+ break;
+ }
+ case R.id.menu_setting: {
+ startPreferenceActivity();
+ break;
+ }
+ case R.id.menu_new_note: {
+ createNewNote();
+ break;
+ }
+ case R.id.menu_search:
+ onSearchRequested();
+ break;
+ case R.id.menu_restore:
+ restoreDeleteNodes();
+ break;
+ default:
+ break;
+ }
+ return true;
+ }
+
+ @Override
+ public boolean onSearchRequested() {
+ startSearch(null, false, null /* appData */, false);
+ return true;
+ }
+
+ private void exportNoteToText() {
+ final BackupUtils backup = BackupUtils.getInstance(NotesListActivity.this);
+ new AsyncTask() {
+
+ @Override
+ protected Integer doInBackground(Void... unused) {
+ return backup.exportToText();
+ }
+
+ @Override
+ protected void onPostExecute(Integer result) {
+ if (result == BackupUtils.STATE_SD_CARD_UNMOUONTED) {
+ AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this);
+ builder.setTitle(NotesListActivity.this
+ .getString(R.string.failed_sdcard_export));
+ builder.setMessage(NotesListActivity.this
+ .getString(R.string.error_sdcard_unmounted));
+ builder.setPositiveButton(android.R.string.ok, null);
+ builder.show();
+ } else if (result == BackupUtils.STATE_SUCCESS) {
+ AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this);
+ builder.setTitle(NotesListActivity.this
+ .getString(R.string.success_sdcard_export));
+ builder.setMessage(NotesListActivity.this.getString(
+ R.string.format_exported_file_location, backup
+ .getExportedTextFileName(), backup.getExportedTextFileDir()));
+ builder.setPositiveButton(android.R.string.ok, null);
+ builder.show();
+ } else if (result == BackupUtils.STATE_SYSTEM_ERROR) {
+ AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this);
+ builder.setTitle(NotesListActivity.this
+ .getString(R.string.failed_sdcard_export));
+ builder.setMessage(NotesListActivity.this
+ .getString(R.string.error_sdcard_export));
+ builder.setPositiveButton(android.R.string.ok, null);
+ builder.show();
+ }
+ }
+
+ }.execute();
+ }
+
+ private boolean isSyncMode() {
+ return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0;
+ }
+
+ private void startPreferenceActivity() {
+ Activity from = getParent() != null ? getParent() : this;
+ Intent intent = new Intent(from, NotesPreferenceActivity.class);
+ from.startActivityIfNeeded(intent, -1);
+ }
+
+ private class OnListItemClickListener implements OnItemClickListener {
+
+ public void onItemClick(AdapterView parent, View view, int position, long id) {
+ if (view instanceof NotesListItem) {
+ NoteItemData item = ((NotesListItem) view).getItemData();
+ if (mNotesListAdapter.isInChoiceMode()) {
+ if (item.getType() == Notes.TYPE_NOTE) {
+ position = position - mNotesListView.getHeaderViewsCount();
+ mModeCallBack.onItemCheckedStateChanged(null, position, id,
+ !mNotesListAdapter.isSelectedItem(position));
+ }
+ return;
+ }
+
+ switch (mState) {
+ case NOTE_LIST:
+ if (item.getType() == Notes.TYPE_FOLDER
+ || item.getType() == Notes.TYPE_SYSTEM) {
+ openFolder(item);
+ } else if (item.getType() == Notes.TYPE_NOTE) {
+ openNode(item);
+ } else {
+ Log.e(TAG, "Wrong note type in NOTE_LIST");
+ }
+ break;
+ case SUB_FOLDER:
+ case CALL_RECORD_FOLDER:
+ if (item.getType() == Notes.TYPE_NOTE) {
+ openNode(item);
+ } else {
+ Log.e(TAG, "Wrong note type in SUB_FOLDER");
+ }
+ break;
+ default:
+ break;
+ }
+ }
+ }
+
+ }
+
+ private void startQueryDestinationFolders() {
+ String selection = NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>? AND " + NoteColumns.ID + "<>?";
+ selection = (mState == ListEditState.NOTE_LIST) ? selection:
+ "(" + selection + ") OR (" + NoteColumns.ID + "=" + Notes.ID_ROOT_FOLDER + ")";
+
+ mBackgroundQueryHandler.startQuery(FOLDER_LIST_QUERY_TOKEN,
+ null,
+ Notes.CONTENT_NOTE_URI,
+ FoldersListAdapter.PROJECTION,
+ selection,
+ new String[] {
+ String.valueOf(Notes.TYPE_FOLDER),
+ String.valueOf(Notes.ID_TRASH_FOLER),
+ String.valueOf(mCurrentFolderId)
+ },
+ NoteColumns.MODIFIED_DATE + " DESC");
+ }
+
+ public boolean onItemLongClick(AdapterView parent, View view, int position, long id) {
+ if (view instanceof NotesListItem) {
+ mFocusNoteDataItem = ((NotesListItem) view).getItemData();
+ if (mFocusNoteDataItem.getType() == Notes.TYPE_NOTE && !mNotesListAdapter.isInChoiceMode()) {
+ if (mNotesListView.startActionMode(mModeCallBack) != null) {
+ mModeCallBack.onItemCheckedStateChanged(null, position, id, true);
+ mNotesListView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
+ } else {
+ Log.e(TAG, "startActionMode fails");
+ }
+ } else if (mFocusNoteDataItem.getType() == Notes.TYPE_FOLDER) {
+ mNotesListView.setOnCreateContextMenuListener(mFolderOnCreateContextMenuListener);
+ }
+ }
+ return false;
+ }
+ private void restoreDeleteNodes() {
+ mState = ListEditState.SUB_FOLDER;
+ mCurrentFolderId = Notes.ID_TRASH_FOLER;
+ startAsyncNotesListQuery();
+ mTitleBar.setText("回收站");
+ mTitleBar.setVisibility(View.VISIBLE);
+ }
+}
diff --git a/app/src/main/java/net/micode/notes/ui/NotesListAdapter.java b/app/src/main/java/net/micode/notes/ui/NotesListAdapter.java
new file mode 100644
index 0000000..51c9cb9
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/ui/NotesListAdapter.java
@@ -0,0 +1,184 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.content.Context;
+import android.database.Cursor;
+import android.util.Log;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.CursorAdapter;
+
+import net.micode.notes.data.Notes;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+
+
+public class NotesListAdapter extends CursorAdapter {
+ private static final String TAG = "NotesListAdapter";
+ private Context mContext;
+ private HashMap mSelectedIndex;
+ private int mNotesCount;
+ private boolean mChoiceMode;
+
+ public static class AppWidgetAttribute {
+ public int widgetId;
+ public int widgetType;
+ };
+
+ public NotesListAdapter(Context context) {
+ super(context, null);
+ mSelectedIndex = new HashMap();
+ mContext = context;
+ mNotesCount = 0;
+ }
+
+ @Override
+ public View newView(Context context, Cursor cursor, ViewGroup parent) {
+ return new NotesListItem(context);
+ }
+
+ @Override
+ public void bindView(View view, Context context, Cursor cursor) {
+ if (view instanceof NotesListItem) {
+ NoteItemData itemData = new NoteItemData(context, cursor);
+ ((NotesListItem) view).bind(context, itemData, mChoiceMode,
+ isSelectedItem(cursor.getPosition()));
+ }
+ }
+
+ public void setCheckedItem(final int position, final boolean checked) {
+ mSelectedIndex.put(position, checked);
+ notifyDataSetChanged();
+ }
+
+ public boolean isInChoiceMode() {
+ return mChoiceMode;
+ }
+
+ public void setChoiceMode(boolean mode) {
+ mSelectedIndex.clear();
+ mChoiceMode = mode;
+ }
+
+ public void selectAll(boolean checked) {
+ Cursor cursor = getCursor();
+ for (int i = 0; i < getCount(); i++) {
+ if (cursor.moveToPosition(i)) {
+ if (NoteItemData.getNoteType(cursor) == Notes.TYPE_NOTE) {
+ setCheckedItem(i, checked);
+ }
+ }
+ }
+ }
+
+ public HashSet getSelectedItemIds() {
+ HashSet itemSet = new HashSet();
+ for (Integer position : mSelectedIndex.keySet()) {
+ if (mSelectedIndex.get(position) == true) {
+ Long id = getItemId(position);
+ if (id == Notes.ID_ROOT_FOLDER) {
+ Log.d(TAG, "Wrong item id, should not happen");
+ } else {
+ itemSet.add(id);
+ }
+ }
+ }
+
+ return itemSet;
+ }
+
+ public HashSet getSelectedWidget() {
+ HashSet itemSet = new HashSet();
+ for (Integer position : mSelectedIndex.keySet()) {
+ if (mSelectedIndex.get(position) == true) {
+ Cursor c = (Cursor) getItem(position);
+ if (c != null) {
+ AppWidgetAttribute widget = new AppWidgetAttribute();
+ NoteItemData item = new NoteItemData(mContext, c);
+ widget.widgetId = item.getWidgetId();
+ widget.widgetType = item.getWidgetType();
+ itemSet.add(widget);
+ /**
+ * Don't close cursor here, only the adapter could close it
+ */
+ } else {
+ Log.e(TAG, "Invalid cursor");
+ return null;
+ }
+ }
+ }
+ return itemSet;
+ }
+
+ public int getSelectedCount() {
+ Collection values = mSelectedIndex.values();
+ if (null == values) {
+ return 0;
+ }
+ Iterator iter = values.iterator();
+ int count = 0;
+ while (iter.hasNext()) {
+ if (true == iter.next()) {
+ count++;
+ }
+ }
+ return count;
+ }
+
+ public boolean isAllSelected() {
+ int checkedCount = getSelectedCount();
+ return (checkedCount != 0 && checkedCount == mNotesCount);
+ }
+
+ public boolean isSelectedItem(final int position) {
+ if (null == mSelectedIndex.get(position)) {
+ return false;
+ }
+ return mSelectedIndex.get(position);
+ }
+
+ @Override
+ protected void onContentChanged() {
+ super.onContentChanged();
+ calcNotesCount();
+ }
+
+ @Override
+ public void changeCursor(Cursor cursor) {
+ super.changeCursor(cursor);
+ calcNotesCount();
+ }
+
+ private void calcNotesCount() {
+ mNotesCount = 0;
+ for (int i = 0; i < getCount(); i++) {
+ Cursor c = (Cursor) getItem(i);
+ if (c != null) {
+ if (NoteItemData.getNoteType(c) == Notes.TYPE_NOTE) {
+ mNotesCount++;
+ }
+ } else {
+ Log.e(TAG, "Invalid cursor");
+ return;
+ }
+ }
+ }
+}
diff --git a/app/src/main/java/net/micode/notes/ui/NotesListItem.java b/app/src/main/java/net/micode/notes/ui/NotesListItem.java
new file mode 100644
index 0000000..1221e80
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/ui/NotesListItem.java
@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.content.Context;
+import android.text.format.DateUtils;
+import android.view.View;
+import android.widget.CheckBox;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.tool.DataUtils;
+import net.micode.notes.tool.ResourceParser.NoteItemBgResources;
+
+
+public class NotesListItem extends LinearLayout {
+ private ImageView mAlert;
+ private TextView mTitle;
+ private TextView mTime;
+ private TextView mCallName;
+ private NoteItemData mItemData;
+ private CheckBox mCheckBox;
+
+ public NotesListItem(Context context) {
+ super(context);
+ inflate(context, R.layout.note_item, this);
+ mAlert = (ImageView) findViewById(R.id.iv_alert_icon);
+ mTitle = (TextView) findViewById(R.id.tv_title);
+ mTime = (TextView) findViewById(R.id.tv_time);
+ mCallName = (TextView) findViewById(R.id.tv_name);
+ mCheckBox = (CheckBox) findViewById(android.R.id.checkbox);
+ }
+
+ public void bind(Context context, NoteItemData data, boolean choiceMode, boolean checked) {
+ if (choiceMode && data.getType() == Notes.TYPE_NOTE) {
+ mCheckBox.setVisibility(View.VISIBLE);
+ mCheckBox.setChecked(checked);
+ } else {
+ mCheckBox.setVisibility(View.GONE);
+ }
+
+ mItemData = data;
+ if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) {
+ mCallName.setVisibility(View.GONE);
+ mAlert.setVisibility(View.VISIBLE);
+ mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem);
+ mTitle.setText(context.getString(R.string.call_record_folder_name)
+ + context.getString(R.string.format_folder_files_count, data.getNotesCount()));
+ mAlert.setImageResource(R.drawable.call_record);
+ } else if (data.getParentId() == Notes.ID_CALL_RECORD_FOLDER) {
+ mCallName.setVisibility(View.VISIBLE);
+ mCallName.setText(data.getCallName());
+ mTitle.setTextAppearance(context,R.style.TextAppearanceSecondaryItem);
+ mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet()));
+ if (data.hasAlert()) {
+ mAlert.setImageResource(R.drawable.clock);
+ mAlert.setVisibility(View.VISIBLE);
+ } else {
+ mAlert.setVisibility(View.GONE);
+ }
+ } else {
+ mCallName.setVisibility(View.GONE);
+ mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem);
+
+ if (data.getType() == Notes.TYPE_FOLDER) {
+ mTitle.setText(data.getSnippet()
+ + context.getString(R.string.format_folder_files_count,
+ data.getNotesCount()));
+ mAlert.setVisibility(View.GONE);
+ } else {
+ mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet()));
+ if (data.hasAlert()) {
+ mAlert.setImageResource(R.drawable.clock);
+ mAlert.setVisibility(View.VISIBLE);
+ } else {
+ mAlert.setVisibility(View.GONE);
+ }
+ }
+ }
+ mTime.setText(DateUtils.getRelativeTimeSpanString(data.getModifiedDate()));
+
+ setBackground(data);
+ }
+
+ private void setBackground(NoteItemData data) {
+ int id = data.getBgColorId();
+ if (data.getType() == Notes.TYPE_NOTE) {
+ if (data.isSingle() || data.isOneFollowingFolder()) {
+ setBackgroundResource(NoteItemBgResources.getNoteBgSingleRes(id));
+ } else if (data.isLast()) {
+ setBackgroundResource(NoteItemBgResources.getNoteBgLastRes(id));
+ } else if (data.isFirst() || data.isMultiFollowingFolder()) {
+ setBackgroundResource(NoteItemBgResources.getNoteBgFirstRes(id));
+ } else {
+ setBackgroundResource(NoteItemBgResources.getNoteBgNormalRes(id));
+ }
+ } else {
+ setBackgroundResource(NoteItemBgResources.getFolderBgRes());
+ }
+ }
+
+ public NoteItemData getItemData() {
+ return mItemData;
+ }
+}
diff --git a/app/src/main/java/net/micode/notes/ui/NotesPreferenceActivity.java b/app/src/main/java/net/micode/notes/ui/NotesPreferenceActivity.java
new file mode 100644
index 0000000..735e9bd
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/ui/NotesPreferenceActivity.java
@@ -0,0 +1,410 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.accounts.Account;
+import android.accounts.AccountManager;
+import android.app.ActionBar;
+import android.app.AlertDialog;
+import android.content.BroadcastReceiver;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.preference.Preference;
+import android.preference.Preference.OnPreferenceClickListener;
+import android.preference.PreferenceActivity;
+import android.preference.PreferenceCategory;
+import android.text.TextUtils;
+import android.text.format.DateFormat;
+import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.Button;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.gtask.remote.GTaskSyncService;
+
+
+public class NotesPreferenceActivity extends PreferenceActivity {// 定义了一个常量字符串 PREFERENCE_NAME，表示 SharedPreferences 的名称
+ public static final String PREFERENCE_NAME = "notes_preferences";// 定义了一个常量字符串 PREFERENCE_SYNC_ACCOUNT_NAME，表示同步账户名称的键名
+
+ public static final String PREFERENCE_SYNC_ACCOUNT_NAME = "pref_key_account_name";// 定义了一个常量字符串 PREFERENCE_LAST_SYNC_TIME，表示上一次同步时间的键名
+
+ public static final String PREFERENCE_LAST_SYNC_TIME = "pref_last_sync_time";// 定义了一个常量字符串 PREFERENCE_SET_BG_COLOR_KEY，表示是否随机设置背景颜色的键名
+
+ public static final String PREFERENCE_SET_BG_COLOR_KEY = "pref_key_bg_random_appear";// 定义了一个常量字符串 PREFERENCE_SYNC_ACCOUNT_KEY，表示同步账户的键名
+
+ private static final String PREFERENCE_SYNC_ACCOUNT_KEY = "pref_sync_account_key";// 定义了一个常量字符串 PREFERENCE_SYNC_ACCOUNT_KEY，表示同步账户的键名
+
+ private static final String AUTHORITIES_FILTER_KEY = "authorities";// 定义了一个常量字符串 AUTHORITIES_FILTER_KEY，表示过滤器的 authorities 键名
+
+ private PreferenceCategory mAccountCategory;// 声明了一个 PreferenceCategory 类型的成员变量 mAccountCategory，表示账户分类
+
+
+ private GTaskReceiver mReceiver;// 声明了一个 GTaskReceiver 类型的成员变量 mReceiver，表示 GTask 接收器
+
+
+ private Account[] mOriAccounts;// 声明了一个 Account 数组类型的成员变量 mOriAccounts，表示原始账户
+
+ private boolean mHasAddedAccount;// 声明了一个 boolean 类型的成员变量 mHasAddedAccount，表示是否已添加了账户
+
+ @Override
+ protected void onCreate(Bundle icicle) {
+ super.onCreate(icicle);
+
+ /* using the app icon for navigation */
+ getActionBar().setDisplayHomeAsUpEnabled(true);
+
+ addPreferencesFromResource(R.xml.preferences);// 加载 preferences.xml 文件中的 Preference
+ mAccountCategory = (PreferenceCategory) findPreference(PREFERENCE_SYNC_ACCOUNT_KEY);// 从 preferences.xml 中找到同步账户分类，赋值给 mAccountCategory
+
+ mReceiver = new GTaskReceiver();
+ IntentFilter filter = new IntentFilter();
+ filter.addAction(GTaskSyncService.GTASK_SERVICE_BROADCAST_NAME);
+ registerReceiver(mReceiver, filter);// 注册 GTaskReceiver 广播接收器，监听 Gtask 同步服务的消息
+
+ mOriAccounts = null;
+ View header = LayoutInflater.from(this).inflate(R.layout.settings_header, null);
+ getListView().addHeaderView(header, null, true);//将原始账户数组 mOriAccounts 设置为 null。
+ }
+
+ @Override
+ protected void onResume() {
+ super.onResume();// onStart 方法，表示 Activity 启动时调用的方
+
+ // need to set sync account automatically if user has added a new
+ // account
+ if (mHasAddedAccount) {
+ Account[] accounts = getGoogleAccounts();
+ if (mOriAccounts != null && accounts.length > mOriAccounts.length) {
+ for (Account accountNew : accounts) {
+ boolean found = false;
+ for (Account accountOld : mOriAccounts) {
+ if (TextUtils.equals(accountOld.name, accountNew.name)) {
+ found = true;
+ break;
+ }
+ }
+ if (!found) {
+ setSyncAccount(accountNew.name);
+ break;
+ }
+ }
+ }
+ }
+
+ refreshUI();
+ }/*1. 调用父类的 onCreate() 方法，初始化 Activity。
+2. 设置应用图标作为导航按钮，以便用户可以返回上一个Activity或者返回应用的主界面。
+3. 加载 preferences.xml 文件中的 Preference。
+4. 从 preferences.xml 中找到同步账户分类，赋值给 mAccountCategory。
+5. 注册 GTaskReceiver 广播接收器，监听 GTask 同步服务的消息。
+6. 将原始账户数组 mOriAccounts 设置为 null。
+7. 通过 LayoutInflater 加载一个设置界面的头部布局 R.layout.settings_header。
+8. 将头部布局添加到 ListView 的头部。
+这段代码的作用是初始化设置界面，并设置导航按钮、注册广播接收器、加载头部布局。*/
+
+ @Override
+ protected void onDestroy() {
+ if (mReceiver != null) {
+ unregisterReceiver(mReceiver);
+ }
+ super.onDestroy();
+ }/*这段代码是 Android 中的一个 Activity 的 onDestroy() 方法，主要进行了以下操作：
+1. 判断 mReceiver 是否为 null，如果不为 null，则解除广播接收器的注册。
+2. 调用父类的 onDestroy() 方法，销毁 Activity。
+这段代码的目的是在 Activity 销毁时，解除之前注册的广播接收器，以避免出现内存泄漏的情况。在 Android 中，如果不及时解除广播接收器的注册，会导致广播接收器持有 Activity 的引用而无法被垃圾回收，从而导致内存泄漏。因此，在 Activity销毁前，需要手动解除广播接收器的注册，以确保程序的正常运行和内存的释放。*/
+
+ private void loadAccountPreference() {
+ mAccountCategory.removeAll();// 清空同步账户分类中的所有设置项
+
+ Preference accountPref = new Preference(this);// 创建一个新的 Preference 对象 accountPref
+ final String defaultAccount = getSyncAccountName(this);// 获取当前默认的同步账户名称
+ accountPref.setTitle(getString(R.string.preferences_account_title));// 设置 accountPref 的标题和摘要
+ accountPref.setSummary(getString(R.string.preferences_account_summary)); // 设置 accountPref 的点击事件监听器
+ accountPref.setOnPreferenceClickListener(new OnPreferenceClickListener() {
+ public boolean onPreferenceClick(Preference preference) {// 判断是否正在进行同步任务
+ if (!GTaskSyncService.isSyncing()) {
+ if (TextUtils.isEmpty(defaultAccount)) {
+ // the first time to set account
+ showSelectAccountAlertDialog();//如果当前同步账户为空，则弹出选择账户对话框
+ } else {
+ // if the account has already been set, we need to promp
+ // user about the risk
+ showChangeAccountConfirmAlertDialog();
+ }// 如果已经设置了同步账户，则需要提示用户风险
+ } else {
+ Toast.makeText(NotesPreferenceActivity.this,
+ R.string.preferences_toast_cannot_change_account, Toast.LENGTH_SHORT)
+ .show();// 如果正在进行同步任务，则提示用户无法更改账户
+ }
+ return true;// 返回 true，表示点击事件已被处理
+ }
+ });
+
+ mAccountCategory.addPreference(accountPref);// 将 accountPref 添加到同步账户分类中
+ }
+
+ private void loadSyncButton() {
+ Button syncButton = (Button) findViewById(R.id.preference_sync_button);// 获取同步按钮和上次同步时间的视图对
+ TextView lastSyncTimeView = (TextView) findViewById(R.id.prefenerece_sync_status_textview);// 设置同步按钮的状态和点击事件监听器
+
+ // set button state
+ if (GTaskSyncService.isSyncing()) {
+ syncButton.setText(getString(R.string.preferences_button_sync_cancel)); // 如果正在同步任务中，则将按钮文本设置为“取消同步”，并添加取消同步的点击事件监听器
+ syncButton.setOnClickListener(new View.OnClickListener() {
+ public void onClick(View v) {
+ GTaskSyncService.cancelSync(NotesPreferenceActivity.this);
+ }
+ });
+ } else {
+ syncButton.setText(getString(R.string.preferences_button_sync_immediately));// 如果没有正在同步任务，则将按钮文本设置为“立即同步”，并添加开始同步的点击事件监听器
+ syncButton.setOnClickListener(new View.OnClickListener() {
+ public void onClick(View v) {
+ GTaskSyncService.startSync(NotesPreferenceActivity.this);
+ }
+ });
+ }// 根据当前是否设置了同步账户来设置同步按钮的可用状态
+ syncButton.setEnabled(!TextUtils.isEmpty(getSyncAccountName(this)));// 设置上次同步时间的显示状态和文本内容
+
+ // set last sync time
+ if (GTaskSyncService.isSyncing()) {
+ lastSyncTimeView.setText(GTaskSyncService.getProgressString());
+ lastSyncTimeView.setVisibility(View.VISIBLE); // 如果正在同步任务中，则显示当前同步进度，并将上次同步时间视图设置为可见状态
+ } else {
+ long lastSyncTime = getLastSyncTime(this);
+ if (lastSyncTime != 0) {
+ lastSyncTimeView.setText(getString(R.string.preferences_last_sync_time,
+ DateFormat.format(getString(R.string.preferences_last_sync_time_format),
+ lastSyncTime)));
+ lastSyncTimeView.setVisibility(View.VISIBLE);
+ } else {
+ lastSyncTimeView.setVisibility(View.GONE);
+ }
+ }
+ }// 如果没有正在同步任务，则获取上次同步时间，并根据上次同步时间是否为0来设置上次同步时间视图的可见状态和文本内容
+
+ private void refreshUI() {
+ loadAccountPreference();
+ loadSyncButton();
+ }/*loadAccountPreference() 方法用于加载和显示当前同步账户的信息，而 loadSyncButton() 方法则用于设置同步按钮的状态和点击事件监听器，并显示上次同步时间的信息。*/
+
+ private void showSelectAccountAlertDialog() {
+ AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);// 创建 AlertDialog.Builder 对象
+
+ View titleView = LayoutInflater.from(this).inflate(R.layout.account_dialog_title, null);
+ TextView titleTextView = (TextView) titleView.findViewById(R.id.account_dialog_title);/// 创建自定义标题视图
+ titleTextView.setText(getString(R.string.preferences_dialog_select_account_title));// 设置标题文本
+ TextView subtitleTextView = (TextView) titleView.findViewById(R.id.account_dialog_subtitle);
+ subtitleTextView.setText(getString(R.string.preferences_dialog_select_account_tips));// 设置副标题文本
+
+ dialogBuilder.setCustomTitle(titleView);// 将自定义标题视图设置到对话框中
+ dialogBuilder.setPositiveButton(null, null); // 不设置确定按钮和点击事件监听器
+
+ Account[] accounts = getGoogleAccounts();
+ String defAccount = getSyncAccountName(this);// 获取所有谷歌账户的列表和当前同步账户的名称
+
+ mOriAccounts = accounts;
+ mHasAddedAccount = false;// 保存原始账户列表并将“已添加账户”标志设为 false
+
+ if (accounts.length > 0) {// 如果找到了至少一个谷歌账户，则创建单选项列表
+ CharSequence[] items = new CharSequence[accounts.length];// 创建单选项列表的选项文本数组
+ final CharSequence[] itemMapping = items;// 创建选项文本数组的映射数组
+ int checkedItem = -1; // 初始化默认选中项的索引为 -1
+ int index = 0;
+ for (Account account : accounts) {// 遍历所有谷歌账户，为每个账户设置一个选项
+ if (TextUtils.equals(account.name, defAccount)) {
+ checkedItem = index;
+ }// 如果该账户的名称与当前同步账户的名称相同，则将其作为默认选中项
+ items[index++] = account.name;// 将该账户的名称添加到选项文本数组中
+ }
+ dialogBuilder.setSingleChoiceItems(items, checkedItem, // 将单选项列表设置到对话框中，并为每个选项设置点击事件监听器
+ new DialogInterface.OnClickListener() {
+ public void onClick(DialogInterface dialog, int which) {
+ setSyncAccount(itemMapping[which].toString()); // 将用户选择的账户名称设置为同步账户
+ dialog.dismiss();// 关闭对话框
+ refreshUI();// 刷新 UI 界面上的账户和同步按钮状态
+ }
+ });
+ }
+
+ View addAccountView = LayoutInflater.from(this).inflate(R.layout.add_account_text, null);//从布局文件中加载一个视图对象并将其赋值给 addAccountView 变量
+ dialogBuilder.setView(addAccountView);//将 addAccountView 设置为对话框的自定义视图
+
+ final AlertDialog dialog = dialogBuilder.show();//创建一个 AlertDialog 对象，并将其显示出来
+ addAccountView.setOnClickListener(new View.OnClickListener() {//添加一个点击事件监听器
+ public void onClick(View v) {
+ mHasAddedAccount = true;//用户是否已经添加了一个账户
+ Intent intent = new Intent("android.settings.ADD_ACCOUNT_SETTINGS");
+ intent.putExtra(AUTHORITIES_FILTER_KEY, new String[] {
+ "gmail-ls"
+ });//创建了一个 Intent 对象，用于启动一个系统设置界面，以便让用户添加新的帐户
+ startActivityForResult(intent, -1);//启动一个新的界面，等待用户添加新的账户
+ dialog.dismiss();//关闭对话框
+ }
+ });
+ }
+
+ private void showChangeAccountConfirmAlertDialog() {
+ // 创建一个 AlertDialog.Builder 对象
+ AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);
+
+ // 从布局文件 R.layout.account_dialog_title 中加载一个视图 titleView
+ View titleView = LayoutInflater.from(this).inflate(R.layout.account_dialog_title, null);
+ // 从 titleView 中找到一个 TextView 对象 titleTextView，并设置其文本
+ TextView titleTextView = (TextView) titleView.findViewById(R.id.account_dialog_title);
+ titleTextView.setText(getString(R.string.preferences_dialog_change_account_title,
+ getSyncAccountName(this)));
+ // 从 titleView 中找到一个 TextView 对象 subtitleTextView，并设置其文本
+ TextView subtitleTextView = (TextView) titleView.findViewById(R.id.account_dialog_subtitle);
+ subtitleTextView.setText(getString(R.string.preferences_dialog_change_account_warn_msg));
+ // 将 titleView 设置为对话框的自定义标题
+ dialogBuilder.setCustomTitle(titleView);
+
+ // 创建一个 CharSequence 类型的数组 menuItemArray，包含三个字符串，作为选项菜单的标签文字
+ CharSequence[] menuItemArray = new CharSequence[] {
+ getString(R.string.preferences_menu_change_account),
+ getString(R.string.preferences_menu_remove_account),
+ getString(R.string.preferences_menu_cancel)
+ };
+ dialogBuilder.setItems(menuItemArray, new DialogInterface.OnClickListener() { // 创建一个 DialogInterface.OnClickListener 对象，用于处理选项菜单的点击事件
+ public void onClick(DialogInterface dialog, int which) {// 判断点击了哪个菜单项
+ if (which == 0) {
+ showSelectAccountAlertDialog();// 如果点击了第一个菜单项，调用 showSelectAccountAlertDialog() 方法显示“选择帐户”对话框
+ } else if (which == 1) {
+ removeSyncAccount();
+ refreshUI();// 如果点击了第二个菜单项，先调用 removeSyncAccount() 方法删除同步帐户，再调用 refreshUI() 方法刷新界面
+ }
+ }
+ });
+ dialogBuilder.show();// 显示对话框
+ }
+
+ private Account[] getGoogleAccounts() {
+ // 获取 AccountManager 对象
+ AccountManager accountManager = AccountManager.get(this);
+ // 调用 getAccountsByType() 方法，传入参数 "com.google"，以获取所有类型为 "com.google" 的帐户
+ return accountManager.getAccountsByType("com.google");
+ }
+
+ private void setSyncAccount(String account) {
+ if (!getSyncAccountName(this).equals(account)) {// 判断传入的 account 是否与当前同步帐户相同
+ SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE);
+ SharedPreferences.Editor editor = settings.edit();// 获取 SharedPreferences 对象
+ if (account != null) {
+ editor.putString(PREFERENCE_SYNC_ACCOUNT_NAME, account); // 如果传入的 account 不为 null，则将其存储到 SharedPreferences 中
+ } else {
+ editor.putString(PREFERENCE_SYNC_ACCOUNT_NAME, "");// 如果传入的 account 为 null，则将空字符串存储到 SharedPreferences 中
+ }
+ editor.commit();// 提交修改
+
+ // clean up last sync time
+ setLastSyncTime(this, 0);// 清除上一次同步的时间
+
+ // clean up local gtask related info
+ new Thread(new Runnable() {
+ public void run() {
+ ContentValues values = new ContentValues(); // 创建一个 ContentValues 对象，用于更新所有的 note
+ values.put(NoteColumns.GTASK_ID, "");// 清空 GTasks ID 和 sync ID
+ values.put(NoteColumns.SYNC_ID, 0);// 清空 GTasks ID 和 sync ID
+ getContentResolver().update(Notes.CONTENT_NOTE_URI, values, null, null); // 更新所有的 note
+ }
+ }).start();
+
+ Toast.makeText(NotesPreferenceActivity.this,
+ getString(R.string.preferences_toast_success_set_accout, account),
+ Toast.LENGTH_SHORT).show();// 显示一个 Toast，提示同步帐户设置成功
+ }
+ }
+
+ private void removeSyncAccount() {
+ SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE); // 获取 SharedPreferences 对象
+ SharedPreferences.Editor editor = settings.edit();// 获取 SharedPreferences 对象
+ if (settings.contains(PREFERENCE_SYNC_ACCOUNT_NAME)) {
+ editor.remove(PREFERENCE_SYNC_ACCOUNT_NAME);
+ }// 如果 SharedPreferences 包含同步帐户名称，则从 SharedPreferences 中删除该名称
+ if (settings.contains(PREFERENCE_LAST_SYNC_TIME)) {
+ editor.remove(PREFERENCE_LAST_SYNC_TIME); // 如果 SharedPreferences 包含上一次同步的时间，则从 SharedPreferences 中删除该时间
+ }
+ editor.commit(); // 提交修改
+
+ // clean up local gtask related info
+ new Thread(new Runnable() {
+ public void run() {
+ ContentValues values = new ContentValues();// 创建一个 ContentValues 对象，用于更新所有的 note
+ values.put(NoteColumns.GTASK_ID, "");
+ values.put(NoteColumns.SYNC_ID, 0); // 清空 GTasks ID 和 sync ID
+ getContentResolver().update(Notes.CONTENT_NOTE_URI, values, null, null);
+ }
+ }).start();// 更新所有的 note
+ }
+
+ public static String getSyncAccountName(Context context) {
+ SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,// 获取 SharedPreferences 对象
+ Context.MODE_PRIVATE);
+ return settings.getString(PREFERENCE_SYNC_ACCOUNT_NAME, "");// 从 SharedPreferences 中获取同步帐户名称
+ }
+
+ public static void setLastSyncTime(Context context, long time) {
+ SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
+ Context.MODE_PRIVATE);
+ SharedPreferences.Editor editor = settings.edit(); // 获取 SharedPreferences 对象
+ editor.putLong(PREFERENCE_LAST_SYNC_TIME, time);// 将最后一次同步的时间保存到 SharedPreferences 中
+ editor.commit();// 提交修改
+ }
+
+ public static long getLastSyncTime(Context context) {
+ SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
+ Context.MODE_PRIVATE);// 获取 SharedPreferences 对象
+ return settings.getLong(PREFERENCE_LAST_SYNC_TIME, 0);// 从 SharedPreferences 中获取最后一次同步的时间
+ }
+
+ private class GTaskReceiver extends BroadcastReceiver {
+
+ @Override
+ public void onReceive(Context context, Intent intent) {
+ refreshUI();// 刷新用户界面
+ if (intent.getBooleanExtra(GTaskSyncService.GTASK_SERVICE_BROADCAST_IS_SYNCING, false)) {
+ TextView syncStatus = (TextView) findViewById(R.id.prefenerece_sync_status_textview);
+ syncStatus.setText(intent
+ .getStringExtra(GTaskSyncService.GTASK_SERVICE_BROADCAST_PROGRESS_MSG));// 如果正在同步，则更新同步状态
+ }
+
+ }
+ }
+
+ public boolean onOptionsItemSelected(MenuItem item) {
+ switch (item.getItemId()) {
+ case android.R.id.home:
+ Intent intent = new Intent(this, NotesListActivity.class);
+ intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
+ startActivity(intent);
+ return true; // 创建一个 Intent 对象，跳转到 NotesListActivity，并清除之前的所有 Activity
+ default:
+ return false;// 如果选择的菜单项不是返回主页，则返回 false
+ }
+ }
+}
diff --git a/app/src/main/java/net/micode/notes/widget/NoteWidgetProvider.java b/app/src/main/java/net/micode/notes/widget/NoteWidgetProvider.java
new file mode 100644
index 0000000..7eba2c2
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/widget/NoteWidgetProvider.java
@@ -0,0 +1,138 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.widget;
+import android.app.PendingIntent;
+import android.appwidget.AppWidgetManager;
+import android.appwidget.AppWidgetProvider;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.Intent;
+import android.database.Cursor;
+import android.util.Log;
+import android.widget.RemoteViews;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.tool.ResourceParser;
+import net.micode.notes.ui.NoteEditActivity;
+import net.micode.notes.ui.NotesListActivity;
+
+public abstract class NoteWidgetProvider extends AppWidgetProvider {
+ public static final String [] PROJECTION = new String [] {
+ NoteColumns.ID,
+ NoteColumns.BG_COLOR_ID,
+ NoteColumns.SNIPPET
+ };
+
+ public static final int COLUMN_ID = 0;
+ public static final int COLUMN_BG_COLOR_ID = 1;
+ public static final int COLUMN_SNIPPET = 2;
+
+ private static final String TAG = "NoteWidgetProvider";
+
+ @Override
+ public void onDeleted(Context context, int[] appWidgetIds) {
+ ContentValues values = new ContentValues();
+ values.put(NoteColumns.WIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
+ for (int i = 0; i < appWidgetIds.length; i++) {
+ context.getContentResolver().update(Notes.CONTENT_NOTE_URI,
+ values,
+ NoteColumns.WIDGET_ID + "=?",
+ new String[] { String.valueOf(appWidgetIds[i])});
+ }
+ }
+
+/*在该方法中，首先创建了一个 ContentValues 对象 values，并将 NoteColumns.WIDGET_ID 的值设为 AppWidgetManager.INVALID_APPWIDGET_ID，表示小部件已被删除。
+
+然后遍历传入的 appWidgetIds 数组，将每个小部件的 NoteColumns.WIDGET_ID 列更新为 AppWidgetManager.INVALID_APPWIDGET_ID，以便将小部件与笔记数据库中的记录解除绑定。
+
+具体地，使用 getContentResolver() 获取一个 ContentResolver 对象，调用 update() 方法对笔记数据库中的记录进行更新。更新的条件为 NoteColumns.WIDGET_ID + "=?"，即 NoteColumns.WIDGET_ID 等于当前小部件 ID，更新的数据为 values 对象，其中 NoteColumns.WIDGET_ID 的值已经被设置为 AppWidgetManager.INVALID_APPWIDGET_ID。*/
+
+ private Cursor getNoteWidgetInfo(Context context, int widgetId) {// 使用 getContentResolver() 方法获取 ContentResolver 对象，通过该对象进行对笔记数据库的查询操作
+ return context.getContentResolver().query(Notes.CONTENT_NOTE_URI, // 使用 query() 方法查询笔记数据库，返回一个 Cursor 对象查询的 URI，笔记数据库中笔记的内容保存在该 URI 下
+ PROJECTION,
+ NoteColumns.WIDGET_ID + "=? AND " + NoteColumns.PARENT_ID + "<>?",
+ new String[] { String.valueOf(widgetId), String.valueOf(Notes.ID_TRASH_FOLER) },
+ null);
+ }
+
+ protected void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
+ update(context, appWidgetManager, appWidgetIds, false);
+ }
+
+ private void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds,
+ boolean privacyMode) {
+ for (int i = 0; i < appWidgetIds.length; i++) {
+ if (appWidgetIds[i] != AppWidgetManager.INVALID_APPWIDGET_ID) {
+ int bgId = ResourceParser.getDefaultBgId(context);
+ String snippet = "";
+ Intent intent = new Intent(context, NoteEditActivity.class);
+ intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
+ intent.putExtra(Notes.INTENT_EXTRA_WIDGET_ID, appWidgetIds[i]);
+ intent.putExtra(Notes.INTENT_EXTRA_WIDGET_TYPE, getWidgetType());
+
+ Cursor c = getNoteWidgetInfo(context, appWidgetIds[i]);
+ if (c != null && c.moveToFirst()) {
+ if (c.getCount() > 1) {
+ Log.e(TAG, "Multiple message with same widget id:" + appWidgetIds[i]);
+ c.close();
+ return;
+ }
+ snippet = c.getString(COLUMN_SNIPPET);
+ bgId = c.getInt(COLUMN_BG_COLOR_ID);
+ intent.putExtra(Intent.EXTRA_UID, c.getLong(COLUMN_ID));
+ intent.setAction(Intent.ACTION_VIEW);
+ } else {
+ snippet = context.getResources().getString(R.string.widget_havenot_content);
+ intent.setAction(Intent.ACTION_INSERT_OR_EDIT);
+ }
+
+ if (c != null) {
+ c.close();
+ }
+
+ RemoteViews rv = new RemoteViews(context.getPackageName(), getLayoutId());
+ rv.setImageViewResource(R.id.widget_bg_image, getBgResourceId(bgId));
+ intent.putExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, bgId);
+ /**
+ * Generate the pending intent to start host for the widget
+ */
+ PendingIntent pendingIntent = null;
+ if (privacyMode) {
+ rv.setTextViewText(R.id.widget_text,
+ context.getString(R.string.widget_under_visit_mode));
+ pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], new Intent(
+ context, NotesListActivity.class), PendingIntent.FLAG_UPDATE_CURRENT);
+ } else {
+ rv.setTextViewText(R.id.widget_text, snippet);
+ pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], intent,
+ PendingIntent.FLAG_UPDATE_CURRENT);
+ }
+
+ rv.setOnClickPendingIntent(R.id.widget_text, pendingIntent);
+ appWidgetManager.updateAppWidget(appWidgetIds[i], rv);
+ }
+ }
+ }
+
+ protected abstract int getBgResourceId(int bgId);
+
+ protected abstract int getLayoutId();
+
+ protected abstract int getWidgetType();
+}
diff --git a/app/src/main/java/net/micode/notes/widget/NoteWidgetProvider_2x.java b/app/src/main/java/net/micode/notes/widget/NoteWidgetProvider_2x.java
new file mode 100644
index 0000000..43921a1
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/widget/NoteWidgetProvider_2x.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.widget;
+
+import android.appwidget.AppWidgetManager;
+import android.content.Context;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.tool.ResourceParser;
+
+
+public class NoteWidgetProvider_2x extends NoteWidgetProvider {//创建一个继承自 NoteWidgetProvider 的子类 NoteWidgetProvider_2x
+ @Override
+ public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
+ super.update(context, appWidgetManager, appWidgetIds);
+ }/*重写父类的 onUpdate() 方法，并在其中调用父类的 update() 方法，以更新小部件的显示内容和点击事件。*/
+
+ @Override
+ protected int getLayoutId() {
+ return R.layout.widget_2x;
+ }/*重写父类的 getLayoutId() 方法，返回用于小部件的布局资源 ID。这里返回 R.layout.widget_2x，表示使用 widget_2x.xml 文件作为布局资源。*/
+
+ @Override
+ protected int getBgResourceId(int bgId) {
+ return ResourceParser.WidgetBgResources.getWidget2xBgResource(bgId);
+ }/*重写父类的 getBgResourceId() 方法，返回用于小部件的背景资源 ID。这里调用了 ResourceParser.WidgetBgResources.getWidget2xBgResource(bgId) 方法，该方法根据传入的背景 ID 返回相应的背景资源 ID。*/
+
+ @Override
+ protected int getWidgetType() {
+ return Notes.TYPE_WIDGET_2X;
+ }/*重写父类的 getWidgetType() 方法，返回小部件的类型。这里返回 Notes.TYPE_WIDGET_2X，表示这是一个 2x 大小的小部件。*/
+}
diff --git a/app/src/main/java/net/micode/notes/widget/NoteWidgetProvider_4x.java b/app/src/main/java/net/micode/notes/widget/NoteWidgetProvider_4x.java
new file mode 100644
index 0000000..7c6c512
--- /dev/null
+++ b/app/src/main/java/net/micode/notes/widget/NoteWidgetProvider_4x.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.widget;
+
+import android.appwidget.AppWidgetManager;
+import android.content.Context;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.tool.ResourceParser;
+
+
+public class NoteWidgetProvider_4x extends NoteWidgetProvider {//创建一个继承自 NoteWidgetProvider 的子类 NoteWidgetProvider_4x。
+ @Override
+ public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
+ super.update(context, appWidgetManager, appWidgetIds);
+ }/*重写父类的 onUpdate() 方法，并在其中调用父类的 update() 方法，以更新小部件的显示内容和点击事件。*/
+
+ protected int getLayoutId() {
+ return R.layout.widget_4x;
+ }/*重写父类的 getLayoutId() 方法，返回用于小部件的布局资源 ID。这里返回 R.layout.widget_4x，表示使用 widget_4x.xml 文件作为布局资源。*/
+ @Override
+ protected int getBgResourceId(int bgId) {
+ return ResourceParser.WidgetBgResources.getWidget4xBgResource(bgId);
+ }/*重写父类的 getBgResourceId() 方法，返回用于小部件的背景资源 ID。这里调用了 ResourceParser.WidgetBgResources.getWidget4xBgResource(bgId) 方法，该方法根据传入的背景 ID 返回相应的背景资源 ID。*/
+
+ @Override
+ protected int getWidgetType() {
+ return Notes.TYPE_WIDGET_4X;
+ }
+}/*重写父类的 getWidgetType() 方法，返回小部件的类型。这里返回 Notes.TYPE_WIDGET_4X，表示这是一个 4x 大小的小部件。*/
diff --git a/app/src/main/res/color/primary_text_dark.xml b/app/src/main/res/color/primary_text_dark.xml
new file mode 100644
index 0000000..8ad98e3
--- /dev/null
+++ b/app/src/main/res/color/primary_text_dark.xml
@@ -0,0 +1,22 @@
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/app/src/main/res/color/secondary_text_dark.xml b/app/src/main/res/color/secondary_text_dark.xml
new file mode 100644
index 0000000..9cf8a1a
--- /dev/null
+++ b/app/src/main/res/color/secondary_text_dark.xml
@@ -0,0 +1,20 @@
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/app/src/main/res/drawable-hdpi/bg_btn_set_color.png b/app/src/main/res/drawable-hdpi/bg_btn_set_color.png
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diff --git a/app/src/main/res/drawable-hdpi/call_record.png b/app/src/main/res/drawable-hdpi/call_record.png
new file mode 100644
index 0000000..fb88ca4
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diff --git a/app/src/main/res/drawable-hdpi/clock.png b/app/src/main/res/drawable-hdpi/clock.png
new file mode 100644
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diff --git a/app/src/main/res/drawable-hdpi/delete.png b/app/src/main/res/drawable-hdpi/delete.png
new file mode 100644
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diff --git a/app/src/main/res/drawable-hdpi/dropdown_icon.9.png b/app/src/main/res/drawable-hdpi/dropdown_icon.9.png
new file mode 100644
index 0000000..5525025
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diff --git a/app/src/main/res/drawable-hdpi/edit_blue.9.png b/app/src/main/res/drawable-hdpi/edit_blue.9.png
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diff --git a/app/src/main/res/drawable-hdpi/edit_green.9.png b/app/src/main/res/drawable-hdpi/edit_green.9.png
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index 0000000..2cb2d60
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diff --git a/app/src/main/res/drawable-hdpi/edit_red.9.png b/app/src/main/res/drawable-hdpi/edit_red.9.png
new file mode 100644
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diff --git a/app/src/main/res/drawable-hdpi/edit_title_blue.9.png b/app/src/main/res/drawable-hdpi/edit_title_blue.9.png
new file mode 100644
index 0000000..96e6092
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diff --git a/app/src/main/res/drawable-hdpi/edit_title_green.9.png b/app/src/main/res/drawable-hdpi/edit_title_green.9.png
new file mode 100644
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diff --git a/app/src/main/res/drawable-hdpi/edit_title_red.9.png b/app/src/main/res/drawable-hdpi/edit_title_red.9.png
new file mode 100644
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diff --git a/app/src/main/res/drawable-hdpi/edit_title_yellow.9.png b/app/src/main/res/drawable-hdpi/edit_title_yellow.9.png
new file mode 100644
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diff --git a/app/src/main/res/drawable-hdpi/edit_white.9.png b/app/src/main/res/drawable-hdpi/edit_white.9.png
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diff --git a/app/src/main/res/drawable-hdpi/font_large.png b/app/src/main/res/drawable-hdpi/font_large.png
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diff --git a/app/src/main/res/drawable-hdpi/font_size_selector_bg.9.png b/app/src/main/res/drawable-hdpi/font_size_selector_bg.9.png
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diff --git a/app/src/main/res/drawable-hdpi/list_blue_single.9.png b/app/src/main/res/drawable-hdpi/list_blue_single.9.png
new file mode 100644
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diff --git a/app/src/main/res/drawable-hdpi/list_blue_up.9.png b/app/src/main/res/drawable-hdpi/list_blue_up.9.png
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diff --git a/app/src/main/res/drawable-hdpi/list_folder.9.png b/app/src/main/res/drawable-hdpi/list_folder.9.png
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diff --git a/app/src/main/res/drawable-hdpi/list_footer_bg.9.png b/app/src/main/res/drawable-hdpi/list_footer_bg.9.png
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diff --git a/app/src/main/res/drawable-hdpi/list_green_middle.9.png b/app/src/main/res/drawable-hdpi/list_green_middle.9.png
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diff --git a/app/src/main/res/drawable-hdpi/list_green_single.9.png b/app/src/main/res/drawable-hdpi/list_green_single.9.png
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diff --git a/app/src/main/res/drawable-hdpi/widget_2x_yellow.png b/app/src/main/res/drawable-hdpi/widget_2x_yellow.png
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diff --git a/app/src/main/res/drawable-hdpi/widget_4x_blue.png b/app/src/main/res/drawable-hdpi/widget_4x_blue.png
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diff --git a/app/src/main/res/drawable/new_note.xml b/app/src/main/res/drawable/new_note.xml
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diff --git a/app/src/main/res/layout/folder_list_item.xml b/app/src/main/res/layout/folder_list_item.xml
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diff --git a/app/src/main/res/layout/note_edit_list_item.xml b/app/src/main/res/layout/note_edit_list_item.xml
new file mode 100644
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diff --git a/app/src/main/res/layout/note_item.xml b/app/src/main/res/layout/note_item.xml
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diff --git a/app/src/main/res/layout/note_list.xml b/app/src/main/res/layout/note_list.xml
new file mode 100644
index 0000000..6b25d38
--- /dev/null
+++ b/app/src/main/res/layout/note_list.xml
@@ -0,0 +1,58 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/app/src/main/res/layout/note_list_dropdown_menu.xml b/app/src/main/res/layout/note_list_dropdown_menu.xml
new file mode 100644
index 0000000..3fa271d
--- /dev/null
+++ b/app/src/main/res/layout/note_list_dropdown_menu.xml
@@ -0,0 +1,32 @@
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/app/src/main/res/layout/note_list_footer.xml b/app/src/main/res/layout/note_list_footer.xml
new file mode 100644
index 0000000..5ca7b22
--- /dev/null
+++ b/app/src/main/res/layout/note_list_footer.xml
@@ -0,0 +1,24 @@
+
+
+
+
+
\ No newline at end of file
diff --git a/app/src/main/res/layout/settings_header.xml b/app/src/main/res/layout/settings_header.xml
new file mode 100644
index 0000000..5eb8c50
--- /dev/null
+++ b/app/src/main/res/layout/settings_header.xml
@@ -0,0 +1,41 @@
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/app/src/main/res/layout/widget_2x.xml b/app/src/main/res/layout/widget_2x.xml
new file mode 100644
index 0000000..55970ce
--- /dev/null
+++ b/app/src/main/res/layout/widget_2x.xml
@@ -0,0 +1,37 @@
+
+
+
+
+
+
+
+
diff --git a/app/src/main/res/layout/widget_4x.xml b/app/src/main/res/layout/widget_4x.xml
new file mode 100644
index 0000000..dc9bb51
--- /dev/null
+++ b/app/src/main/res/layout/widget_4x.xml
@@ -0,0 +1,39 @@
+
+
+
+
+
+
+
+
+
+
diff --git a/app/src/main/res/menu/call_note_edit.xml b/app/src/main/res/menu/call_note_edit.xml
new file mode 100644
index 0000000..02c0528
--- /dev/null
+++ b/app/src/main/res/menu/call_note_edit.xml
@@ -0,0 +1,48 @@
+
+
+
+
+
diff --git a/app/src/main/res/menu/call_record_folder.xml b/app/src/main/res/menu/call_record_folder.xml
new file mode 100644
index 0000000..c664346
--- /dev/null
+++ b/app/src/main/res/menu/call_record_folder.xml
@@ -0,0 +1,23 @@
+
+
+
+
+
diff --git a/app/src/main/res/menu/note_edit.xml b/app/src/main/res/menu/note_edit.xml
new file mode 100644
index 0000000..35cacd1
--- /dev/null
+++ b/app/src/main/res/menu/note_edit.xml
@@ -0,0 +1,52 @@
+
+
+
+
+
\ No newline at end of file
diff --git a/app/src/main/res/menu/note_list.xml b/app/src/main/res/menu/note_list.xml
new file mode 100644
index 0000000..56443cc
--- /dev/null
+++ b/app/src/main/res/menu/note_list.xml
@@ -0,0 +1,42 @@
+
+
+
+
+
diff --git a/app/src/main/res/menu/note_list_dropdown.xml b/app/src/main/res/menu/note_list_dropdown.xml
new file mode 100644
index 0000000..7cbaadc
--- /dev/null
+++ b/app/src/main/res/menu/note_list_dropdown.xml
@@ -0,0 +1,20 @@
+
+
+
+
+
\ No newline at end of file
diff --git a/app/src/main/res/menu/note_list_options.xml b/app/src/main/res/menu/note_list_options.xml
new file mode 100644
index 0000000..daac008
--- /dev/null
+++ b/app/src/main/res/menu/note_list_options.xml
@@ -0,0 +1,31 @@
+
+
+
+
+
\ No newline at end of file
diff --git a/app/src/main/res/menu/sub_folder.xml b/app/src/main/res/menu/sub_folder.xml
new file mode 100644
index 0000000..b00de26
--- /dev/null
+++ b/app/src/main/res/menu/sub_folder.xml
@@ -0,0 +1,24 @@
+
+
+
+
+
\ No newline at end of file
diff --git a/app/src/main/res/raw-zh-rCN/introduction b/app/src/main/res/raw-zh-rCN/introduction
new file mode 100644
index 0000000..7188359
--- /dev/null
+++ b/app/src/main/res/raw-zh-rCN/introduction
@@ -0,0 +1,7 @@
+欢迎使用MIUI便签！
+
+ 无论从软件中直接添加，还是从桌面拖出widget，MIUI便签能让你快速建立和保存便签；
+
+ 除了调整文字大小、便签背景、文件夹等基础功能外，你会发现MIUI便签也提供了清单模式、便签提醒、软件加密、导出到SD卡、同步google task的高级功能，让你的生活记录更加美好和安全；
+
+ 来分享你的使用体验吧：http://www.miui.com/index.php
diff --git a/app/src/main/res/raw/introduction b/app/src/main/res/raw/introduction
new file mode 100644
index 0000000..269cf7b
--- /dev/null
+++ b/app/src/main/res/raw/introduction
@@ -0,0 +1 @@
+Welcome to use MIUI notes!
\ No newline at end of file
diff --git a/app/src/main/res/values-zh-rCN/arrays.xml b/app/src/main/res/values-zh-rCN/arrays.xml
new file mode 100644
index 0000000..a092386
--- /dev/null
+++ b/app/src/main/res/values-zh-rCN/arrays.xml
@@ -0,0 +1,23 @@
+
+
+
+
+
+
+ 短信
+ 邮件
+
+
\ No newline at end of file
diff --git a/app/src/main/res/values-zh-rCN/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
new file mode 100644
index 0000000..09f75ed
--- /dev/null
+++ b/app/src/main/res/values-zh-rCN/strings.xml
@@ -0,0 +1,126 @@
+
+
+
+
+
+ 便签
+ 便签2x2
+ 便签4x4
+ 没有关联内容，点击新建便签。
+ 访客模式下，便签内容不可见
+ ...
+ 新建便签
+ 成功删除提醒
+ 创建提醒
+ 已过期
+ yyyyMMdd
+ MM月dd日 kk:mm
+ 知道了
+ 查看
+ 呼叫电话
+ 发送邮件
+ 浏览网页
+ 打开地图
+
+ 新建文件夹
+ 导出文本
+ 同步
+ 取消同步
+ 设置
+ 搜索
+ 删除
+ 移动到文件夹
+ 选中了 %d 项
+ 没有选中项，操作无效
+ 全选
+ 取消全选
+ 文字大小
+ 小
+ 正常
+ 大
+ 超大
+ 进入清单模式
+ 退出清单模式
+ 查看文件夹
+ 刪除文件夹
+ 修改文件夹名称
+ 文件夹 %1$s 已存在，请重新命名
+ 分享
+ 发送到桌面
+ 提醒我
+ 删除提醒
+ 选择文件夹
+ 上一级文件夹
+ 已添加到桌面
+ 删除
+ 确认要删除所选的 %d 条便签吗?
+ 确认要删除该条便签吗?
+ 确认删除文件夹及所包含的便签吗？
+ 已将所选 %1$d 条便签移到 %2$s 文件夹
+
+ SD卡被占用，不能操作
+ 导出文本时发生错误，请检查SD卡
+ 要查看的便签不存在
+ 不能为空便签设置闹钟提醒
+ 不能将空便签发送到桌面
+ 导出成功
+ 导出失败
+ 已将文本文件(%1$s)输出至SD卡(%2$s)目录
+
+ 同步便签...
+ 同步成功
+ 同步失败
+ 同步已取消
+ 与%1$s同步成功
+ 同步失败，请检查网络和帐号设置
+ 同步失败，发生内部错误
+ 同步已取消
+ 登录%1$s...
+ 正在获取服务器便签列表...
+ 正在同步本地便签...
+
+ 设置
+ 同步账号
+ 与google task同步便签记录
+ 上次同步于 %1$s
+ 添加账号
+ 更换账号
+ 删除账号
+ 取消
+ 立即同步
+ 取消同步
+ 当前帐号 %1$s
+ 如更换同步帐号，过去的帐号同步信息将被清空，再次切换的同时可能会造成数据重复
+ 同步便签
+ 请选择google帐号，便签将与该帐号的google task内容同步。
+ 正在同步中，不能修改同步帐号
+ 同步帐号已设置为%1$s
+ 新建便签背景颜色随机
+ 删除
+ 通话便签
+ 请输入名称
+ 正在搜索便签
+ 搜索便签
+ 便签中的文字
+ 便签
+ 设置
+ 取消
+
+ %1$s 条符合“%2$s”的搜索结果
+
+
+
diff --git a/app/src/main/res/values-zh-rTW/arrays.xml b/app/src/main/res/values-zh-rTW/arrays.xml
new file mode 100644
index 0000000..5297209
--- /dev/null
+++ b/app/src/main/res/values-zh-rTW/arrays.xml
@@ -0,0 +1,23 @@
+
+
+
+
+
+
+ 短信
+ 郵件
+
+
\ No newline at end of file
diff --git a/app/src/main/res/values-zh-rTW/strings.xml b/app/src/main/res/values-zh-rTW/strings.xml
new file mode 100644
index 0000000..e29b79b
--- /dev/null
+++ b/app/src/main/res/values-zh-rTW/strings.xml
@@ -0,0 +1,127 @@
+
+
+
+
+
+ 便簽
+ 便簽2x2
+ 便簽4x4
+ 沒有關聯內容，點擊新建便簽。
+ 訪客模式下，便籤內容不可見
+ ...
+ 新建便簽
+ 成功刪除提醒
+ 創建提醒
+ 已過期
+ yyyyMMdd
+ MM月dd日 kk:mm
+ 知道了
+ 查看
+ 呼叫電話
+ 發送郵件
+ 浏覽網頁
+ 打開地圖
+ 已將所選 %1$d 便籤移到 %2$s 文件夾
+
+ 新建文件夾
+ 導出文本
+ 同步
+ 取消同步
+ 設置
+ 搜尋
+ 刪除
+ 移動到文件夾
+ 選中了 %d 項
+ 沒有選中項，操作無效
+ 全選
+ 取消全選
+ 文字大小
+ 小
+ 正常
+ 大
+ 超大
+ 進入清單模式
+ 退出清單模式
+ 查看文件夾
+ 刪除文件夾
+ 修改文件夾名稱
+ 文件夾 %1$s 已存在，請重新命名
+ 分享
+ 發送到桌面
+ 提醒我
+ 刪除提醒
+ 選擇文件夾
+ 上一級文件夾
+ 已添加到桌面
+ 刪除
+ 确认要刪除所選的 %d 條便籤嗎?
+ 确认要删除該條便籤嗎?
+ 確認刪除檔夾及所包含的便簽嗎？
+ SD卡被佔用，不能操作
+ 導出TXT時發生錯誤，請檢查SD卡
+ 要查看的便籤不存在
+ 不能爲空便籤設置鬧鐘提醒
+ 不能將空便籤發送到桌面
+ 導出成功
+ 導出失敗
+ 已將文本文件(%1$s)導出至SD(%2$s)目錄
+
+ 同步便簽...
+ 同步成功
+ 同步失敗
+ 同步已取消
+ 與%1$s同步成功
+ 同步失敗，請檢查網絡和帳號設置
+ 同步失敗，發生內部錯誤
+ 同步已取消
+ 登陸%1$s...
+ 正在獲取服務器便籤列表...
+ 正在同步本地便籤...
+
+ 設置
+ 同步賬號
+ 与google task同步便簽記錄
+ 上次同步于 %1$s
+ 添加賬號
+ 更換賬號
+ 刪除賬號
+ 取消
+ 立即同步
+ 取消同步
+ 當前帳號 %1$s
+ 如更換同步帳號，過去的帳號同步信息將被清空，再次切換的同時可能會造成數據重復
+ 同步便簽
+ 請選擇google帳號，便簽將與該帳號的google task內容同步。
+ 正在同步中，不能修改同步帳號
+ 同步帳號已設置為%1$s
+ 新建便籤背景顏色隨機
+
+ 刪除
+ 通話便籤
+ 請輸入名稱
+
+ 正在搜索便籤
+ 搜索便籤
+ 便籤中的文字
+ 便籤
+ 設置
+ 取消
+
+ %1$s 條符合”%2$s“的搜尋結果
+
+
+
diff --git a/app/src/main/res/values/arrays.xml b/app/src/main/res/values/arrays.xml
new file mode 100644
index 0000000..e00210b
--- /dev/null
+++ b/app/src/main/res/values/arrays.xml
@@ -0,0 +1,31 @@
+
+
+
+
+
+
+
+ -%s
+ --%s
+ --%s
+ --%s
+
+
+
+ Messaging
+ Email
+
+
\ No newline at end of file
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
new file mode 100644
index 0000000..123ffbf
--- /dev/null
+++ b/app/src/main/res/values/colors.xml
@@ -0,0 +1,20 @@
+
+
+
+
+
+ #335b5b5b
+
diff --git a/app/src/main/res/values/dimens.xml b/app/src/main/res/values/dimens.xml
new file mode 100644
index 0000000..194e84f
--- /dev/null
+++ b/app/src/main/res/values/dimens.xml
@@ -0,0 +1,24 @@
+
+
+
+
+
+ 33sp
+ 26sp
+ 20sp
+ 17sp
+ 14sp
+
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
new file mode 100644
index 0000000..55df868
--- /dev/null
+++ b/app/src/main/res/values/strings.xml
@@ -0,0 +1,135 @@
+
+
+
+
+
+ Notes
+ Notes 2x2
+ Notes 4x4
+ No associated note found, click to create associated note.
+ Privacy mode，can not see note content
+ ...
+ Add note
+ Delete reminder successfully
+ Set reminder
+ Expired
+ yyyyMMdd
+ MMMd kk:mm
+ Got it
+ Take a look
+ Call
+ Send email
+ Browse web
+ Open map
+
+ /MIUI/notes/
+ notes_%s.txt
+
+ (%d)
+ New Folder
+ Export text
+ Sync
+ Cancel syncing
+ Settings
+ Search
+ Delete
+ Move to folder
+ %d selected
+ Nothing selected, the operation is invalid
+ Select all
+ Deselect all
+ Font size
+ Small
+ Medium
+ Large
+ Super
+ Enter check list
+ Leave check list
+ View folder
+ Delete folder
+ Change folder name
+ The folder %1$s exist, please rename
+ Share
+ Send to home
+ Remind me
+ Delete reminder
+ Select folder
+ Parent folder
+ Note added to home
+ Confirm to delete folder and its notes?
+ Delete selected notes
+ Confirm to delete the selected %d notes?
+ Confirm to delete this note?
+ Have moved selected %1$d notes to %2$s folder
+
+ SD card busy, not available now
+ Export failed, please check SD card
+ The note is not exist
+ Sorry, can not set clock on empty note
+ Sorry, can not send and empty note to home
+ Export successful
+ Export fail
+ Export text file (%1$s) to SD (%2$s) directory
+
+ Syncing notes...
+ Sync is successful
+ Sync is failed
+ Sync is canceled
+ Sync is successful with account %1$s
+ Sync failed, please check network and account settings
+ Sync failed, internal error occurs
+ Sync is canceled
+ Logging into %1$s...
+ Getting remote note list...
+ Synchronize local notes with Google Task...
+
+ Settings
+ Sync account
+ Sync notes with google task
+ Last sync time %1$s
+ yyyy-MM-dd hh:mm:ss
+ Add account
+ Change sync account
+ Remove sync account
+ Cancel
+ Sync immediately
+ Cancel syncing
+ Current account %1$s
+ All sync related information will be deleted, which may result in duplicated items sometime
+ Sync notes
+ Please select a google account. Local notes will be synced with google task.
+ Cannot change the account because sync is in progress
+ %1$s has been set as the sync account
+ New note background color random
+
+ Delete
+ Call notes
+ Input name
+
+ Searching Notes
+ Search notes
+ Text in your notes
+ Notes
+ set
+ cancel
+
+ %1$s result for \"%2$s\"
+
+ %1$s results for \"%2$s\"
+
+
+
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
new file mode 100644
index 0000000..16bebc2
--- /dev/null
+++ b/app/src/main/res/values/styles.xml
@@ -0,0 +1,69 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/app/src/main/res/xml/preferences.xml b/app/src/main/res/xml/preferences.xml
new file mode 100644
index 0000000..fe58f8f
--- /dev/null
+++ b/app/src/main/res/xml/preferences.xml
@@ -0,0 +1,30 @@
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/app/src/main/res/xml/searchable.xml b/app/src/main/res/xml/searchable.xml
new file mode 100644
index 0000000..bf74f14
--- /dev/null
+++ b/app/src/main/res/xml/searchable.xml
@@ -0,0 +1,27 @@
+
+
+
+
+
diff --git a/app/src/main/res/xml/widget_2x_info.xml b/app/src/main/res/xml/widget_2x_info.xml
new file mode 100644
index 0000000..ac8b225
--- /dev/null
+++ b/app/src/main/res/xml/widget_2x_info.xml
@@ -0,0 +1,23 @@
+
+
+
+
+
+
diff --git a/app/src/main/res/xml/widget_4x_info.xml b/app/src/main/res/xml/widget_4x_info.xml
new file mode 100644
index 0000000..cf79f9c
--- /dev/null
+++ b/app/src/main/res/xml/widget_4x_info.xml
@@ -0,0 +1,23 @@
+
+
+
+
+
+
diff --git a/build.gradle b/build.gradle
new file mode 100644
index 0000000..4138047
--- /dev/null
+++ b/build.gradle
@@ -0,0 +1,17 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+buildscript {
+ repositories {
+ jcenter()
+ google()
+ }
+ dependencies {
+ classpath 'com.android.tools.build:gradle:7.4.2'
+ }
+}
+
+allprojects {
+ repositories {
+ jcenter()
+ google()
+ }
+}
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..e708b1c
Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..bc289a4
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Fri Apr 07 12:55:12 CST 2023
+distributionBase=GRADLE_USER_HOME
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.5-bin.zip
+distributionPath=wrapper/dists
+zipStorePath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
diff --git a/gradlew b/gradlew
new file mode 100644
index 0000000..4f906e0
--- /dev/null
+++ b/gradlew
@@ -0,0 +1,185 @@
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+##
+## Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+ ls=`ls -ld "$PRG"`
+ link=`expr "$ls" : '.*-> \(.*\)$'`
+ if expr "$link" : '/.*' > /dev/null; then
+ PRG="$link"
+ else
+ PRG=`dirname "$PRG"`"/$link"
+ fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+ echo "$*"
+}
+
+die () {
+ echo
+ echo "$*"
+ echo
+ exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+ CYGWIN* )
+ cygwin=true
+ ;;
+ Darwin* )
+ darwin=true
+ ;;
+ MINGW* )
+ msys=true
+ ;;
+ NONSTOP* )
+ nonstop=true
+ ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+ if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+ # IBM's JDK on AIX uses strange locations for the executables
+ JAVACMD="$JAVA_HOME/jre/sh/java"
+ else
+ JAVACMD="$JAVA_HOME/bin/java"
+ fi
+ if [ ! -x "$JAVACMD" ] ; then
+ die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+ fi
+else
+ JAVACMD="java"
+ which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+ MAX_FD_LIMIT=`ulimit -H -n`
+ if [ $? -eq 0 ] ; then
+ if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+ MAX_FD="$MAX_FD_LIMIT"
+ fi
+ ulimit -n $MAX_FD
+ if [ $? -ne 0 ] ; then
+ warn "Could not set maximum file descriptor limit: $MAX_FD"
+ fi
+ else
+ warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+ fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+ GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
+ APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+ CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+ JAVACMD=`cygpath --unix "$JAVACMD"`
+
+ # We build the pattern for arguments to be converted via cygpath
+ ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+ SEP=""
+ for dir in $ROOTDIRSRAW ; do
+ ROOTDIRS="$ROOTDIRS$SEP$dir"
+ SEP="|"
+ done
+ OURCYGPATTERN="(^($ROOTDIRS))"
+ # Add a user-defined pattern to the cygpath arguments
+ if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+ OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+ fi
+ # Now convert the arguments - kludge to limit ourselves to /bin/sh
+ i=0
+ for arg in "$@" ; do
+ CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+ CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
+
+ if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
+ eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+ else
+ eval `echo args$i`="\"$arg\""
+ fi
+ i=`expr $i + 1`
+ done
+ case $i in
+ 0) set -- ;;
+ 1) set -- "$args0" ;;
+ 2) set -- "$args0" "$args1" ;;
+ 3) set -- "$args0" "$args1" "$args2" ;;
+ 4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+ 5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+ 6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+ 7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+ 8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+ 9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+ esac
+fi
+
+# Escape application args
+save () {
+ for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+ echo " "
+}
+APP_ARGS=`save "$@"`
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+exec "$JAVACMD" "$@"
diff --git a/gradlew.bat b/gradlew.bat
new file mode 100644
index 0000000..107acd3
--- /dev/null
+++ b/gradlew.bat
@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/import-summary.txt b/import-summary.txt
new file mode 100644
index 0000000..7352965
--- /dev/null
+++ b/import-summary.txt
@@ -0,0 +1,55 @@
+ECLIPSE ANDROID PROJECT IMPORT SUMMARY
+======================================
+
+Ignored Files:
+--------------
+The following files were *not* copied into the new Gradle project; you
+should evaluate whether these are still needed in your project and if
+so manually move them:
+
+* .gitignore
+* .idea\
+* .idea\.gitignore
+* .idea\Notes-master.iml
+* .idea\misc.xml
+* .idea\modules.xml
+* .idea\workspace.xml
+* .vs\
+* .vs\Notes-master\
+* .vs\Notes-master\FileContentIndex\
+* .vs\Notes-master\FileContentIndex\03b5a89a-698f-4824-8d2f-0915a373922e.vsidx
+* .vs\Notes-master\FileContentIndex\9f48036c-332a-415f-abdf-e89130c50a23.vsidx
+* .vs\Notes-master\FileContentIndex\d40d5014-eb2a-4a0b-829d-e5b69cecb5cb.vsidx
+* .vs\Notes-master\FileContentIndex\read.lock
+* .vs\Notes-master\v17\
+* .vs\Notes-master\v17\.wsuo
+* .vs\ProjectSettings.json
+* .vs\VSWorkspaceState.json
+* .vs\slnx.sqlite
+* NOTICE
+* Notes-master.iml
+* README
+
+Moved Files:
+------------
+Android Gradle projects use a different directory structure than ADT
+Eclipse projects. Here's how the projects were restructured:
+
+* AndroidManifest.xml => app\src\main\AndroidManifest.xml
+* res\ => app\src\main\res\
+* src\ => app\src\main\java\
+
+Next Steps:
+-----------
+You can now build the project. The Gradle project needs network
+connectivity to download dependencies.
+
+Bugs:
+-----
+If for some reason your project does not build, and you determine that
+it is due to a bug or limitation of the Eclipse to Gradle importer,
+please file a bug at http://b.android.com with category
+Component-Tools.
+
+(This import summary is for your information only, and can be deleted
+after import once you are satisfied with the results.)
diff --git a/local.properties b/local.properties
new file mode 100644
index 0000000..4c356d2
--- /dev/null
+++ b/local.properties
@@ -0,0 +1,8 @@
+## This file must *NOT* be checked into Version Control Systems,
+# as it contains information specific to your local configuration.
+#
+# Location of the SDK. This is only used by Gradle.
+# For customization when using a Version Control System, please read the
+# header note.
+#Wed Jun 07 13:25:38 CST 2023
+sdk.dir=D\:\\Android\\SDK
diff --git a/minote.iml b/minote.iml
new file mode 100644
index 0000000..cc22eb3
--- /dev/null
+++ b/minote.iml
@@ -0,0 +1,12 @@
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/settings.gradle b/settings.gradle
new file mode 100644
index 0000000..e7b4def
--- /dev/null
+++ b/settings.gradle
@@ -0,0 +1 @@
+include ':app'
diff --git a/src/.idea/modules.xml b/src/.idea/modules.xml
new file mode 100644
index 0000000..f669a0e
--- /dev/null
+++ b/src/.idea/modules.xml
@@ -0,0 +1,8 @@
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/src/.idea/src.iml b/src/.idea/src.iml
new file mode 100644
index 0000000..d6ebd48
--- /dev/null
+++ b/src/.idea/src.iml
@@ -0,0 +1,9 @@
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/src/.idea/workspace.xml b/src/.idea/workspace.xml
new file mode 100644
index 0000000..07928cf
--- /dev/null
+++ b/src/.idea/workspace.xml
@@ -0,0 +1,569 @@
+
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\ No newline at end of file
diff --git a/src/app/src/main/java/net/micode/notes/widget/NoteWidgetProvider.java b/src/app/src/main/java/net/micode/notes/widget/NoteWidgetProvider.java
new file mode 100644
index 0000000..0c824f0
--- /dev/null
+++ b/src/app/src/main/java/net/micode/notes/widget/NoteWidgetProvider.java
@@ -0,0 +1,143 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.widget;
+import android.app.PendingIntent;
+import android.appwidget.AppWidgetManager;
+import android.appwidget.AppWidgetProvider;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.Intent;
+import android.database.Cursor;
+import android.util.Log;
+import android.widget.RemoteViews;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.tool.ResourceParser;
+import net.micode.notes.ui.NoteEditActivity;
+import net.micode.notes.ui.NotesListActivity;
+
+public abstract class NoteWidgetProvider extends AppWidgetProvider {
+ public static final String [] PROJECTION = new String [] {
+ NoteColumns.ID,
+ NoteColumns.BG_COLOR_ID,
+ NoteColumns.SNIPPET
+ };
+
+ public static final int COLUMN_ID = 0;
+ public static final int COLUMN_BG_COLOR_ID = 1;
+ public static final int COLUMN_SNIPPET = 2;
+
+ private static final String TAG = "NoteWidgetProvider";
+
+ @Override
+ public void onDeleted(Context context, int[] appWidgetIds) {
+ ContentValues values = new ContentValues();
+ values.put(NoteColumns.WIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
+ for (int i = 0; i < appWidgetIds.length; i++) {
+ context.getContentResolver().update(Notes.CONTENT_NOTE_URI,
+ values,
+ NoteColumns.WIDGET_ID + "=?",
+ new String[] { String.valueOf(appWidgetIds[i])});
+ }
+ }
+
+<<<<<<<<< Temporary merge branch 1
+ private Cursor getNoteWidgetInfo(Context context, int widgetId) {
+ return context.getContentResolver().query(Notes.CONTENT_NOTE_URI,
+=========
+在该方法中，首先创建了一个 ContentValues 对象 values，并将 NoteColumns.WIDGET_ID 的值设为 AppWidgetManager.INVALID_APPWIDGET_ID，表示小部件已被删除。
+
+然后遍历传入的 appWidgetIds 数组，将每个小部件的 NoteColumns.WIDGET_ID 列更新为 AppWidgetManager.INVALID_APPWIDGET_ID，以便将小部件与笔记数据库中的记录解除绑定。
+
+具体地，使用 getContentResolver() 获取一个 ContentResolver 对象，调用 update() 方法对笔记数据库中的记录进行更新。更新的条件为 NoteColumns.WIDGET_ID + "=?"，即 NoteColumns.WIDGET_ID 等于当前小部件 ID，更新的数据为 values 对象，其中 NoteColumns.WIDGET_ID 的值已经被设置为 AppWidgetManager.INVALID_APPWIDGET_ID。*/
+
+ private Cursor getNoteWidgetInfo(Context context, int widgetId) {// 使用 getContentResolver() 方法获取 ContentResolver 对象，通过该对象进行对笔记数据库的查询操作
+ return context.getContentResolver().query(Notes.CONTENT_NOTE_URI, // 使用 query() 方法查询笔记数据库，返回一个 Cursor 对象查询的 URI，笔记数据库中笔记的内容保存在该 URI 下
+>>>>>>>>> Temporary merge branch 2
+ PROJECTION,
+ NoteColumns.WIDGET_ID + "=? AND " + NoteColumns.PARENT_ID + "<>?",
+ new String[] { String.valueOf(widgetId), String.valueOf(Notes.ID_TRASH_FOLER) },
+ null);
+ }
+
+ protected void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
+ update(context, appWidgetManager, appWidgetIds, false);
+ }
+
+ private void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds,
+ boolean privacyMode) {
+ for (int i = 0; i < appWidgetIds.length; i++) {
+ if (appWidgetIds[i] != AppWidgetManager.INVALID_APPWIDGET_ID) {
+ int bgId = ResourceParser.getDefaultBgId(context);
+ String snippet = "";
+ Intent intent = new Intent(context, NoteEditActivity.class);
+ intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
+ intent.putExtra(Notes.INTENT_EXTRA_WIDGET_ID, appWidgetIds[i]);
+ intent.putExtra(Notes.INTENT_EXTRA_WIDGET_TYPE, getWidgetType());
+
+ Cursor c = getNoteWidgetInfo(context, appWidgetIds[i]);
+ if (c != null && c.moveToFirst()) {
+ if (c.getCount() > 1) {
+ Log.e(TAG, "Multiple message with same widget id:" + appWidgetIds[i]);
+ c.close();
+ return;
+ }
+ snippet = c.getString(COLUMN_SNIPPET);
+ bgId = c.getInt(COLUMN_BG_COLOR_ID);
+ intent.putExtra(Intent.EXTRA_UID, c.getLong(COLUMN_ID));
+ intent.setAction(Intent.ACTION_VIEW);
+ } else {
+ snippet = context.getResources().getString(R.string.widget_havenot_content);
+ intent.setAction(Intent.ACTION_INSERT_OR_EDIT);
+ }
+
+ if (c != null) {
+ c.close();
+ }
+
+ RemoteViews rv = new RemoteViews(context.getPackageName(), getLayoutId());
+ rv.setImageViewResource(R.id.widget_bg_image, getBgResourceId(bgId));
+ intent.putExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, bgId);
+ /**
+ * Generate the pending intent to start host for the widget
+ */
+ PendingIntent pendingIntent = null;
+ if (privacyMode) {
+ rv.setTextViewText(R.id.widget_text,
+ context.getString(R.string.widget_under_visit_mode));
+ pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], new Intent(
+ context, NotesListActivity.class), PendingIntent.FLAG_UPDATE_CURRENT);
+ } else {
+ rv.setTextViewText(R.id.widget_text, snippet);
+ pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], intent,
+ PendingIntent.FLAG_UPDATE_CURRENT);
+ }
+
+ rv.setOnClickPendingIntent(R.id.widget_text, pendingIntent);
+ appWidgetManager.updateAppWidget(appWidgetIds[i], rv);
+ }
+ }
+ }
+
+ protected abstract int getBgResourceId(int bgId);
+
+ protected abstract int getLayoutId();
+
+ protected abstract int getWidgetType();
+}
diff --git a/存放源程序代码.txt b/存放源程序代码.txt
new file mode 100644
index 0000000..e69de29