From f80461a97b63b394a77c3412d981ca8f1288a7cd Mon Sep 17 00:00:00 2001 From: YTY <1553684734@qq.com> Date: Fri, 13 Jun 2025 09:53:50 +0800 Subject: [PATCH] V3.0 --- java/net/micode/notes/data/Notes.java | 8 +- .../notes/data/NotesDatabaseHelper.java | 216 +- java/net/micode/notes/data/NotesProvider.java | 598 +++--- java/net/micode/notes/gtask/data/SqlNote.java | 746 +++---- java/net/micode/notes/gtask/data/Task.java | 274 ++- .../net/micode/notes/gtask/data/TaskList.java | 56 +- .../notes/gtask/remote/GTaskClient.java | 2 +- .../notes/gtask/remote/GTaskManager.java | 4 +- java/net/micode/notes/tool/BackupUtils.java | 4 +- java/net/micode/notes/tool/DataUtils.java | 4 +- .../micode/notes/ui/AlarmAlertActivity.java | 82 +- .../micode/notes/ui/AlarmInitReceiver.java | 31 +- java/net/micode/notes/ui/AlarmReceiver.java | 22 +- java/net/micode/notes/ui/DateTimePicker.java | 78 +- .../micode/notes/ui/DateTimePickerDialog.java | 43 +- java/net/micode/notes/ui/DropdownMenu.java | 28 +- .../micode/notes/ui/FoldersListAdapter.java | 39 +- .../net/micode/notes/ui/NoteEditActivity.java | 302 ++- java/net/micode/notes/ui/NoteEditText.java | 95 +- java/net/micode/notes/ui/NoteItemData.java | 24 +- .../micode/notes/ui/NotesListActivity.java | 1741 +++++++++++------ 21 files changed, 2552 insertions(+), 1845 deletions(-) diff --git a/java/net/micode/notes/data/Notes.java b/java/net/micode/notes/data/Notes.java index 7009eec..b188846 100644 --- a/java/net/micode/notes/data/Notes.java +++ b/java/net/micode/notes/data/Notes.java @@ -73,10 +73,10 @@ public class Notes { public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data"); /** - 定义了便签（Note）数据表的列名和数据类型， - *包括便签的唯一ID、父级ID、创建日期、修改日期、 - *提醒日期、内容摘要、小部件ID、小部件类型、背景颜色ID、 - * 附件标识、便签数量、类型、同步ID、本地修改标识、原始父级ID、GTask ID和版本号等。*/ + 定义了便签（Note）数据表的列名和数据类型， + *包括便签的唯一ID、父级ID、创建日期、修改日期、 + *提醒日期、内容摘要、小部件ID、小部件类型、背景颜色ID、 + * 附件标识、便签数量、类型、同步ID、本地修改标识、原始父级ID、GTask ID和版本号等。*/ public interface NoteColumns { /** * The unique ID for a row diff --git a/java/net/micode/notes/data/NotesDatabaseHelper.java b/java/net/micode/notes/data/NotesDatabaseHelper.java index 76c48e8..3ca153f 100644 --- a/java/net/micode/notes/data/NotesDatabaseHelper.java +++ b/java/net/micode/notes/data/NotesDatabaseHelper.java @@ -51,44 +51,44 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { //定义了SQL语句分别用于创建便签表、数据表、包含ID、便签和数据的表格 private static final String CREATE_NOTE_TABLE_SQL = - "CREATE TABLE " + TABLE.NOTE + "(" + - NoteColumns.ID + " INTEGER PRIMARY KEY," + - NoteColumns.PARENT_ID + " INTEGER NOT NULL DEFAULT 0," + - NoteColumns.ALERTED_DATE + " INTEGER NOT NULL DEFAULT 0," + - NoteColumns.BG_COLOR_ID + " INTEGER NOT NULL DEFAULT 0," + - NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + - NoteColumns.HAS_ATTACHMENT + " INTEGER NOT NULL DEFAULT 0," + - NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + - NoteColumns.NOTES_COUNT + " INTEGER NOT NULL DEFAULT 0," + - NoteColumns.SNIPPET + " TEXT NOT NULL DEFAULT ''," + - NoteColumns.TYPE + " INTEGER NOT NULL DEFAULT 0," + - NoteColumns.WIDGET_ID + " INTEGER NOT NULL DEFAULT 0," + - NoteColumns.WIDGET_TYPE + " INTEGER NOT NULL DEFAULT -1," + - NoteColumns.SYNC_ID + " INTEGER NOT NULL DEFAULT 0," + - NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," + - NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," + - NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," + - NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" + - ")"; + "CREATE TABLE " + TABLE.NOTE + "(" + + NoteColumns.ID + " INTEGER PRIMARY KEY," + + NoteColumns.PARENT_ID + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.ALERTED_DATE + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.BG_COLOR_ID + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + + NoteColumns.HAS_ATTACHMENT + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + + NoteColumns.NOTES_COUNT + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.SNIPPET + " TEXT NOT NULL DEFAULT ''," + + NoteColumns.TYPE + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.WIDGET_ID + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.WIDGET_TYPE + " INTEGER NOT NULL DEFAULT -1," + + NoteColumns.SYNC_ID + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," + + NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" + + ")"; private static final String CREATE_DATA_TABLE_SQL = - "CREATE TABLE " + TABLE.DATA + "(" + - DataColumns.ID + " INTEGER PRIMARY KEY," + - DataColumns.MIME_TYPE + " TEXT NOT NULL," + - DataColumns.NOTE_ID + " INTEGER NOT NULL DEFAULT 0," + - NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + - NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + - DataColumns.CONTENT + " TEXT NOT NULL DEFAULT ''," + - DataColumns.DATA1 + " INTEGER," + - DataColumns.DATA2 + " INTEGER," + - DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," + - DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," + - DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" + - ")"; + "CREATE TABLE " + TABLE.DATA + "(" + + DataColumns.ID + " INTEGER PRIMARY KEY," + + DataColumns.MIME_TYPE + " TEXT NOT NULL," + + DataColumns.NOTE_ID + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + + NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + + DataColumns.CONTENT + " TEXT NOT NULL DEFAULT ''," + + DataColumns.DATA1 + " INTEGER," + + DataColumns.DATA2 + " INTEGER," + + DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," + + DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," + + DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" + + ")"; private static final String CREATE_DATA_NOTE_ID_INDEX_SQL = - "CREATE INDEX IF NOT EXISTS note_id_index ON " + - TABLE.DATA + "(" + DataColumns.NOTE_ID + ");"; + "CREATE INDEX IF NOT EXISTS note_id_index ON " + + TABLE.DATA + "(" + DataColumns.NOTE_ID + ");"; /** * Increase folder's note count when move note to the folder @@ -96,134 +96,134 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { */ //定义了对数据库进行增删改查等工作的SQL语句 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"; + "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的笔记计数 */ 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"; + "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 * 在文件夹中插入新笔记时增加文件夹的笔记数 */ 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"; + "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计数 */ 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"; + "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} * 插入类型为｛DataConstants.Note｝的数据时更新注释的内容 */ 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"; + "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.Note｝类型的数据发生更改时，更新注释的内容 */ 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"; + "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.Note｝类型的数据后，更新注释的内容 */ 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"; + "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 * 删除数据属于已删除的注释 */ 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"; + "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 * 删除数据属于已删除的注释 */ 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"; + "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 * 移动笔记属于已移动到垃圾文件夹的文件夹 */ 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"; + "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"; public NotesDatabaseHelper(Context context) { super(context, DB_NAME, null, DB_VERSION); diff --git a/java/net/micode/notes/data/NotesProvider.java b/java/net/micode/notes/data/NotesProvider.java index 93d8778..3ca153f 100644 --- a/java/net/micode/notes/data/NotesProvider.java +++ b/java/net/micode/notes/data/NotesProvider.java @@ -16,303 +16,385 @@ 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.content.Context; import android.database.sqlite.SQLiteDatabase; -import android.net.Uri; -import android.text.TextUtils; +import android.database.sqlite.SQLiteOpenHelper; import android.util.Log; -import net.micode.notes.R; +//对Notes类中DataColumns、DataConstants、NoteColumns进行引用： 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; -public class NotesProvider extends ContentProvider { - //UriMatcher对象，用于匹配URI并返回相应的整数值 - private static final UriMatcher mMatcher; +public class NotesDatabaseHelper extends SQLiteOpenHelper { + //定义了数据库名称 + private static final String DB_NAME = "note.db"; - //表示NotesDatabaseHelper的实例 - private NotesDatabaseHelper mHelper; + //定义了数据库版本 + private static final int DB_VERSION = 4; - //用于标识日志的标签 - private static final String TAG = "NotesProvider"; + //定义了TABLE接口 + public interface TABLE { + //定义了两个表的名称 + public static final String NOTE = "note"; - //定义了不同类型的URI匹配值 - private static final int URI_NOTE = 1; - private static final int URI_NOTE_ITEM = 2; - private static final int URI_DATA = 3; - private static final int URI_DATA_ITEM = 4; + public static final String DATA = "data"; + } - private static final int URI_SEARCH = 5; - private static final int URI_SEARCH_SUGGEST = 6; + //定义了标签 + private static final String TAG = "NotesDatabaseHelper"; - 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); - } + //定义了一个静态变量mInstance，用于表示NotesDatabaseHelper类的实例 + private static NotesDatabaseHelper mInstance; + + //定义了SQL语句分别用于创建便签表、数据表、包含ID、便签和数据的表格 + private static final String CREATE_NOTE_TABLE_SQL = + "CREATE TABLE " + TABLE.NOTE + "(" + + NoteColumns.ID + " INTEGER PRIMARY KEY," + + NoteColumns.PARENT_ID + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.ALERTED_DATE + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.BG_COLOR_ID + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + + NoteColumns.HAS_ATTACHMENT + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + + NoteColumns.NOTES_COUNT + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.SNIPPET + " TEXT NOT NULL DEFAULT ''," + + NoteColumns.TYPE + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.WIDGET_ID + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.WIDGET_TYPE + " INTEGER NOT NULL DEFAULT -1," + + NoteColumns.SYNC_ID + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," + + NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" + + ")"; + + private static final String CREATE_DATA_TABLE_SQL = + "CREATE TABLE " + TABLE.DATA + "(" + + DataColumns.ID + " INTEGER PRIMARY KEY," + + DataColumns.MIME_TYPE + " TEXT NOT NULL," + + DataColumns.NOTE_ID + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + + NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + + DataColumns.CONTENT + " TEXT NOT NULL DEFAULT ''," + + DataColumns.DATA1 + " INTEGER," + + DataColumns.DATA2 + " INTEGER," + + DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," + + DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," + + DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" + + ")"; + + private static final String CREATE_DATA_NOTE_ID_INDEX_SQL = + "CREATE INDEX IF NOT EXISTS note_id_index ON " + + TABLE.DATA + "(" + DataColumns.NOTE_ID + ");"; /** - * 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. + * Increase folder's note count when move note to the folder + * 将笔记移动到文件夹时增加文件夹的笔记数 */ - //定义了搜索结果的投影，包括便签ID、额外数据、文本1、文本2、图标、意图操作和数据 - 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; - - //定义了搜索便签摘要的查询语句，用于从便签表中查询符合条件的便签摘要数据 - private static String NOTES_SNIPPET_SEARCH_QUERY = "SELECT " + NOTES_SEARCH_PROJECTION - + " FROM " + TABLE.NOTE - + " WHERE " + NoteColumns.SNIPPET + " LIKE ?" - + " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER - + " AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE; + //定义了对数据库进行增删改查等工作的SQL语句 + 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"; - @Override - public boolean onCreate() { - mHelper = NotesDatabaseHelper.getInstance(getContext()); - return true; + /** + * 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的笔记计数 + */ + 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 + * 在文件夹中插入新笔记时增加文件夹的笔记数 + */ + 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计数 + */ + 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} + * 插入类型为｛DataConstants.Note｝的数据时更新注释的内容 + */ + 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.Note｝类型的数据发生更改时，更新注释的内容 + */ + 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.Note｝类型的数据后，更新注释的内容 + */ + 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 + * 删除数据属于已删除的注释 + */ + 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 + * 删除数据属于已删除的注释 + */ + 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 + * 移动笔记属于已移动到垃圾文件夹的文件夹 + */ + 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"; + + public NotesDatabaseHelper(Context context) { + super(context, DB_NAME, null, DB_VERSION); } - //处理查询操作，根据URI匹配不同的查询类型，包括便签、数据和搜索结果的查询。 - @Override - public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, - String sortOrder) { - Cursor c = null; - SQLiteDatabase db = mHelper.getReadableDatabase(); - String id = null; - switch (mMatcher.match(uri)) { - case URI_NOTE: - c = db.query(TABLE.NOTE, projection, selection, selectionArgs, null, null, - sortOrder); - break; - case URI_NOTE_ITEM: - id = uri.getPathSegments().get(1); - c = db.query(TABLE.NOTE, projection, NoteColumns.ID + "=" + id - + parseSelection(selection), selectionArgs, null, null, sortOrder); - break; - case URI_DATA: - c = db.query(TABLE.DATA, projection, selection, selectionArgs, null, null, - sortOrder); - break; - case URI_DATA_ITEM: - 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: - 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 { - 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) { - c.setNotificationUri(getContext().getContentResolver(), uri); - } - return c; + //创建便签表 + public void createNoteTable(SQLiteDatabase db) { + //执行创建表的SQL语句 + db.execSQL(CREATE_NOTE_TABLE_SQL); + //重新创建表的触发器 + reCreateNoteTableTriggers(db); + //创建系统文件夹 + createSystemFolder(db); + //打印日志 + Log.d(TAG, "note table has been created"); } - //处理插入操作 - @Override - public Uri insert(Uri uri, ContentValues values) { - SQLiteDatabase db = mHelper.getWritableDatabase(); - long dataId = 0, noteId = 0, insertedId = 0; - switch (mMatcher.match(uri)) { - case URI_NOTE: - insertedId = noteId = db.insert(TABLE.NOTE, null, values); - break; - case URI_DATA: - if (values.containsKey(DataColumns.NOTE_ID)) { - noteId = values.getAsLong(DataColumns.NOTE_ID); - } else { - Log.d(TAG, "Wrong data format without note id:" + values.toString()); - } - insertedId = dataId = db.insert(TABLE.DATA, null, values); - break; - default: - throw new IllegalArgumentException("Unknown URI " + uri); - } - // Notify the note uri - if (noteId > 0) { - getContext().getContentResolver().notifyChange( - ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null); - } + //重新创建便签表的触发器 + 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"); - // Notify the data uri - if (dataId > 0) { - getContext().getContentResolver().notifyChange( - ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), null); - } + 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); + } + + //创建系统文件夹，包括通话记录文件夹、默认文件夹、临时文件夹和回收站文件夹。 + private void createSystemFolder(SQLiteDatabase db) { + ContentValues values = new ContentValues(); + + /** + * call record foler 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 + */ + values.clear(); + values.put(NoteColumns.ID, Notes.ID_ROOT_FOLDER); + values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); + db.insert(TABLE.NOTE, null, values); - return ContentUris.withAppendedId(uri, insertedId); + /** + * 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); } - //处理删除操作 - @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)) { - case URI_NOTE: - selection = "(" + selection + ") AND " + NoteColumns.ID + ">0 "; - count = db.delete(TABLE.NOTE, selection, selectionArgs); - break; - case URI_NOTE_ITEM: - id = uri.getPathSegments().get(1); - /** - * ID that smaller than 0 is system folder which is not allowed to - * trash - */ - long noteId = Long.valueOf(id); - if (noteId <= 0) { - break; - } - count = db.delete(TABLE.NOTE, - NoteColumns.ID + "=" + id + parseSelection(selection), selectionArgs); - break; - case URI_DATA: - count = db.delete(TABLE.DATA, selection, selectionArgs); - deleteData = true; - break; - case URI_DATA_ITEM: - id = uri.getPathSegments().get(1); - count = db.delete(TABLE.DATA, - DataColumns.ID + "=" + id + parseSelection(selection), selectionArgs); - deleteData = true; - break; - default: - throw new IllegalArgumentException("Unknown URI " + uri); - } - if (count > 0) { - if (deleteData) { - getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null); - } - getContext().getContentResolver().notifyChange(uri, null); - } - return count; + //创建数据表 + public void createDataTable(SQLiteDatabase db) { + //执行创建表的SQL语句 + db.execSQL(CREATE_DATA_TABLE_SQL); + //重新创建表的触发器 + reCreateDataTableTriggers(db); + //创建数据表的索引 + db.execSQL(CREATE_DATA_NOTE_ID_INDEX_SQL); + //打印日志 + Log.d(TAG, "data table has been created"); } - //处理更新操作 - @Override - public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) { - int count = 0; - String id = null; - SQLiteDatabase db = mHelper.getWritableDatabase(); - boolean updateData = false; - switch (mMatcher.match(uri)) { - case URI_NOTE: - increaseNoteVersion(-1, selection, selectionArgs); - count = db.update(TABLE.NOTE, values, selection, selectionArgs); - break; - case URI_NOTE_ITEM: - id = uri.getPathSegments().get(1); - increaseNoteVersion(Long.valueOf(id), selection, selectionArgs); - 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); - } + //重新创建数据表的触发器 + 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); + } - if (count > 0) { - if (updateData) { - getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null); - } - getContext().getContentResolver().notifyChange(uri, null); + //获取NotesDatabaseHelper类的实例 + static synchronized NotesDatabaseHelper getInstance(Context context) { + if (mInstance == null) { + mInstance = new NotesDatabaseHelper(context); } - return count; + return mInstance; } - //辅助方法，用于解析查询条件 - private String parseSelection(String selection) { - return (!TextUtils.isEmpty(selection) ? " AND (" + selection + ')' : ""); + //在数据库创建时调用，执行创建便签表和数据表的操作。 + @Override + public void onCreate(SQLiteDatabase db) { + createNoteTable(db); + createDataTable(db); } - //辅助方法，用于增加便签版本号 - 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 "); - - if (id > 0 || !TextUtils.isEmpty(selection)) { - sql.append(" WHERE "); + //在数据库升级时调用，根据旧版本和新版本执行相应的升级操作 + @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 (id > 0) { - sql.append(NoteColumns.ID + "=" + String.valueOf(id)); + + if (reCreateTriggers) { + reCreateNoteTableTriggers(db); + reCreateDataTableTriggers(db); } - if (!TextUtils.isEmpty(selection)) { - String selectString = id > 0 ? parseSelection(selection) : selection; - for (String args : selectionArgs) { - selectString = selectString.replaceFirst("\\?", args); - } - sql.append(selectString); + + if (oldVersion != newVersion) { + throw new IllegalStateException("Upgrade notes database to version " + newVersion + + "fails"); } + } - mHelper.getWritableDatabase().execSQL(sql.toString()); + //升级数据库到版本2的操作 + 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); } - //获取URI的MIME类型，暂未实现 - @Override - public String getType(Uri uri) { - // TODO Auto-generated method stub - return null; + //升级数据库到版本3的操作 + 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); } + //升级数据库到版本4的操作 + private void upgradeToV4(SQLiteDatabase db) { + db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.VERSION + + " INTEGER NOT NULL DEFAULT 0"); + } } diff --git a/java/net/micode/notes/gtask/data/SqlNote.java b/java/net/micode/notes/gtask/data/SqlNote.java index d4a9d21..ae47bc3 100644 --- a/java/net/micode/notes/gtask/data/SqlNote.java +++ b/java/net/micode/notes/gtask/data/SqlNote.java @@ -16,558 +16,378 @@ 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; -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 TaskList extends Node { + private static final String TAG = TaskList.class.getSimpleName();//tag标记 -/* - * 功能描述：得到类的简写名称存入字符串TAG中 - * 实现过程：调用getSimpleName ()函数 - */ -public class SqlNote { - private static final String TAG = SqlNote.class.getSimpleName(); + private int mIndex;//当前TaskList的指针 - private static final int INVALID_ID = -99999; + private ArrayList mChildren;//类中主要的保存数据的单元，用来实现一个以Task为元素的ArrayList - // 集合了interface DataColumns中所有SF常量 - 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 - }; + public TaskList() { + super(); + mChildren = new ArrayList(); + mIndex = 1; + } - /* - * 以下五个变量作为sql表中5列的编号 + /* (non-Javadoc) + * @see net.micode.notes.gtask.data.Node#getCreateAction(int) + * 生成并返回一个包含了一定数据的JSONObject实体 */ - 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 JSONObject getCreateAction(int actionId) { + JSONObject js = new JSONObject(); - 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; - - private Context mContext; - - private ContentResolver mContentResolver; - //判断是否直接用Content生成，是为true，否则为false - private boolean mIsCreate; - - private long mId; - - private long mAlertDate; - - private int mBgColorId; - - private long mCreatedDate; - - private int mHasAttachment; - - private long mModifiedDate; + try { + // action_type + js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, + GTaskStringUtils.GTASK_JSON_ACTION_TYPE_CREATE); - private long mParentId; + // action_id + js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId); - private String mSnippet; + // index + js.put(GTaskStringUtils.GTASK_JSON_INDEX, mIndex); - private int mType; + // 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_GROUP); + js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity); - private int mWidgetId; + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("fail to generate tasklist-create jsonobject"); + } - private int mWidgetType; + return js; + } - private long mOriginParent; + /* (non-Javadoc) + * @see net.micode.notes.gtask.data.Node#getUpdateAction(int) + * 生成并返回一个包含了一定数据的JSONObject实体 + */ + public JSONObject getUpdateAction(int actionId) { + JSONObject js = new JSONObject(); - private long mVersion; + try { + // action_type + js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, + GTaskStringUtils.GTASK_JSON_ACTION_TYPE_UPDATE); - private ContentValues mDiffNoteValues; + // action_id + js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId); - private ArrayList mDataList; + // id + js.put(GTaskStringUtils.GTASK_JSON_ID, getGid()); - 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(); - } + // entity_delta + JSONObject entity = new JSONObject(); + entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName()); + entity.put(GTaskStringUtils.GTASK_JSON_DELETED, getDeleted()); + js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity); - /* - * 功能描述：构造函数，用于初始化数据 - * 参数注解：mContentResolver用于获取ContentProvider提供的数据 - * 参数注解： mIsCreate表征当前数据是用哪种方式创建（两种构造函数的参数不同） - * 参数注解： - */ + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("fail to generate tasklist-update jsonobject"); + } - 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(); + return js; } - /* - * 功能描述：构造函数，初始化数据 - * 参数注解：mContentResolver用于获取ContentProvider提供的数据 - * 参数注解： mIsCreate表征当前数据是用哪种方式创建（两种构造函数的参数不同） - * 参数注解： - */ + public void setContentByRemoteJSON(JSONObject js) { + if (js != null) { + try { + // id + if (js.has(GTaskStringUtils.GTASK_JSON_ID)) { + setGid(js.getString(GTaskStringUtils.GTASK_JSON_ID)); + } - 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(); + // last_modified + if (js.has(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)) { + setLastModified(js.getLong(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)); + } - } + // name + if (js.has(GTaskStringUtils.GTASK_JSON_NAME)) { + setName(js.getString(GTaskStringUtils.GTASK_JSON_NAME)); + } - /* - * 功能描述：从光标处加载数据 - * 从当前的光标处将五列的数据加载到该类的对象 - */ - 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"); + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("fail to get tasklist content from jsonobject"); } - } finally { - if (c != null) - c.close(); } } - 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); - } + public void setContentByLocalJSON(JSONObject js) { + if (js == null || !js.has(GTaskStringUtils.META_HEAD_NOTE)) { + Log.w(TAG, "setContentByLocalJSON: nothing is avaiable"); + } - 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); - } + JSONObject folder = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE); + + if (folder.getInt(NoteColumns.TYPE) == Notes.TYPE_FOLDER) { + String name = folder.getString(NoteColumns.SNIPPET); + setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX + name); + } else if (folder.getInt(NoteColumns.TYPE) == Notes.TYPE_SYSTEM) { + if (folder.getLong(NoteColumns.ID) == Notes.ID_ROOT_FOLDER) + setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_DEFAULT); + else if (folder.getLong(NoteColumns.ID) == Notes.ID_CALL_RECORD_FOLDER) + setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX + + GTaskStringUtils.FOLDER_CALL_NOTE); + else + Log.e(TAG, "invalid system folder"); } else { - Log.w(TAG, "loadDataContent: cursor = null"); + Log.e(TAG, "error type"); } - } finally { - if (c != null) - c.close(); + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); } } - /* - * 功能描述：设置用于共享的数据，并提供异常抛出与处理机制 - * 参数注解： - */ - public boolean setContent(JSONObject js) { + public JSONObject getLocalJSONFromContent() { try { - JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE); - if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_SYSTEM) { - Log.w(TAG, "cannot set system folder"); - } 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; - } 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; - - 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; - - 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; - - 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; - - 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; - - 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; + JSONObject js = new JSONObject(); + JSONObject folder = new JSONObject(); - 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 folderName = getName(); + if (getName().startsWith(GTaskStringUtils.MIUI_FOLDER_PREFFIX)) + folderName = folderName.substring(GTaskStringUtils.MIUI_FOLDER_PREFFIX.length(), + folderName.length()); + folder.put(NoteColumns.SNIPPET, folderName); + if (folderName.equals(GTaskStringUtils.FOLDER_DEFAULT) + || folderName.equals(GTaskStringUtils.FOLDER_CALL_NOTE)) + folder.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); + else + folder.put(NoteColumns.TYPE, Notes.TYPE_FOLDER); - String snippet = note.has(NoteColumns.SNIPPET) ? note - .getString(NoteColumns.SNIPPET) : ""; - if (mIsCreate || !mSnippet.equals(snippet)) { - mDiffNoteValues.put(NoteColumns.SNIPPET, snippet); - } - mSnippet = snippet; + js.put(GTaskStringUtils.META_HEAD_NOTE, folder); - 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; + return js; + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + return null; + } + } - 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); + public int getSyncAction(Cursor c) { + try { + if (c.getInt(SqlNote.LOCAL_MODIFIED_COLUMN) == 0) { + // there is no local update + if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) { + // no update both side + return SYNC_ACTION_NONE; + } else { + // apply remote to local + return SYNC_ACTION_UPDATE_LOCAL; } - mWidgetType = widgetType; - - 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); + } else { + // validate gtask id + if (!c.getString(SqlNote.GTASK_ID_COLUMN).equals(getGid())) { + Log.e(TAG, "gtask id doesn't match"); + return SYNC_ACTION_ERROR; } - mOriginParent = originParent; - - 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; - } - } - } - - if (sqlData == null) { - sqlData = new SqlData(mContext); - mDataList.add(sqlData); - } - - sqlData.setContent(data); + if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) { + // local modification only + return SYNC_ACTION_UPDATE_REMOTE; + } else { + // for folder conflicts, just apply local modification + return SYNC_ACTION_UPDATE_REMOTE; } } - } catch (JSONException e) { + } catch (Exception e) { Log.e(TAG, e.toString()); e.printStackTrace(); - return false; } - return true; + + return SYNC_ACTION_ERROR; } + public int getChildTaskCount() { + return mChildren.size(); + } /* - * 功能描述：获取共享的数据内容，并提供异常抛出与处理机制 - * 参数注解： - * Made By CuiCan + * @param task + * @return 返回值为是否成功添加任务。 + * 功能：在当前任务表末尾添加新的任务。 */ - 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; + public boolean addChildTask(Task task) { + boolean ret = false; + if (task != null && !mChildren.contains(task)) { + ret = mChildren.add(task); + if (ret) { + // need to set prior sibling and parent + task.setPriorSibling(mChildren.isEmpty() ? null : mChildren + .get(mChildren.size() - 1)); + task.setParent(this); } - - 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); - } 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; + return ret; } - public void setParentId(long id) { - mParentId = id; - mDiffNoteValues.put(NoteColumns.PARENT_ID, id); - } + /* + * @param task + * @param index + * @return + * 功能：在当前任务表的指定位置添加新的任务。 + */ + public boolean addChildTask(Task task, int index) { + if (index < 0 || index > mChildren.size()) { + Log.e(TAG, "add child task: invalid index"); + return false; + } - public void setGtaskId(String gid) { - mDiffNoteValues.put(NoteColumns.GTASK_ID, gid); - } + int pos = mChildren.indexOf(task); + if (task != null && pos == -1) { + mChildren.add(index, task); + + // update the task list + 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); + if (afterTask != null) + afterTask.setPriorSibling(task); + } - public void setSyncId(long syncId) { - mDiffNoteValues.put(NoteColumns.SYNC_ID, syncId); + return true; } - public void resetLocalModified() { - mDiffNoteValues.put(NoteColumns.LOCAL_MODIFIED, 0); + /* + * @param task + * @return 返回删除是否成功 + * 功能：删除TaskList中的一个Task + */ + public boolean removeChildTask(Task task) { + boolean ret = false; + int index = mChildren.indexOf(task); + if (index != -1) { + ret = mChildren.remove(task); + + if (ret) { + // reset prior sibling and parent + task.setPriorSibling(null); + task.setParent(null); + + // update the task list + if (index != mChildren.size()) { + mChildren.get(index).setPriorSibling( + index == 0 ? null : mChildren.get(index - 1)); + } + } + } + return ret; } /* - * 功能描述：获取当前id - * 实现过程： - * 参数注解： - * Made By CuiCan + * @param task + * @param index + * @return + * 功能：将当前TaskList中含有的某个Task移到index位置 */ - public long getId() { - return mId; - } + public boolean moveChildTask(Task task, int index) { - public long getParentId() { - return mParentId; - } + if (index < 0 || index >= mChildren.size()) { + Log.e(TAG, "move child task: invalid index"); + return false; + } - public String getSnippet() { - return mSnippet; - } + int pos = mChildren.indexOf(task); + if (pos == -1) { + Log.e(TAG, "move child task: the task should in the list"); + return false; + } - public boolean isNoteType() { - return mType == Notes.TYPE_NOTE; + if (pos == index) + return true; + return (removeChildTask(task) && addChildTask(task, index)); } - /* - * 功能描述：commit函数用于把当前造作所做的修改保存到数据库 - * 参数注解： - * Made By CuiCan + /** + * @param gid + * @return返回寻找结果 + * 功能：按gid寻找Task */ - public void commit(boolean validateVersion) { - if (mIsCreate) { - if (mId == INVALID_ID && mDiffNoteValues.containsKey(NoteColumns.ID)) { - mDiffNoteValues.remove(NoteColumns.ID); + public Task findChildTaskByGid(String gid) { + for (int i = 0; i < mChildren.size(); i++) { + Task t = mChildren.get(i); + if (t.getGid().equals(gid)) { + return t; } + } + return null; + } - 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"); - } + /** + * @param task + * @return + * 功能：返回指定Task的index + */ + public int getChildTaskIndex(Task task) { + return mChildren.indexOf(task); + } - if (mType == Notes.TYPE_NOTE) { - for (SqlData sqlData : mDataList) { - sqlData.commit(mId, false, -1); - } - } - } 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"); - } - } + /** + * @param index + * @return + * 功能：返回指定index的Task + */ + public Task getChildTaskByIndex(int index) { + if (index < 0 || index >= mChildren.size()) { + Log.e(TAG, "getTaskByIndex: invalid index"); + return null; + } + return mChildren.get(index); + } - if (mType == Notes.TYPE_NOTE) { - for (SqlData sqlData : mDataList) { - sqlData.commit(mId, validateVersion, mVersion); - } - } + /** + * @param gid + * @return + * 功能：返回指定gid的Task + */ + public Task getChilTaskByGid(String gid) { + for (Task task : mChildren) { + if (task.getGid().equals(gid)) + return task; } + return null; + } - // refresh local info - loadFromCursor(mId); - if (mType == Notes.TYPE_NOTE) - loadDataContent(); + public ArrayList getChildTaskList() { + return this.mChildren; + } + + public void setIndex(int index) { + this.mIndex = index; + } - mDiffNoteValues.clear(); - mIsCreate = false; + public int getIndex() { + return this.mIndex; } } diff --git a/java/net/micode/notes/gtask/data/Task.java b/java/net/micode/notes/gtask/data/Task.java index 70c0ccf..6a19454 100644 --- a/java/net/micode/notes/gtask/data/Task.java +++ b/java/net/micode/notes/gtask/data/Task.java @@ -34,13 +34,17 @@ import org.json.JSONObject; public class Task extends Node { private static final String TAG = Task.class.getSimpleName(); - private boolean mCompleted; // 任务完成状态 - private String mNotes; // 任务备注 - private JSONObject mMetaInfo; // 元数据（存储本地笔记与GTask的映射） - private Task mPriorSibling; // 前一个兄弟任务（用于排序） - private TaskList mParent; // 所属任务列表 - // 构造函数：初始化任务属性 + private boolean mCompleted; + + private String mNotes; + + private JSONObject mMetaInfo; + + private Task mPriorSibling; + + private TaskList mParent; + public Task() { super(); mCompleted = false; @@ -50,94 +54,166 @@ public class Task extends Node { mMetaInfo = null; } - // 生成创建任务的JSON请求 public JSONObject getCreateAction(int actionId) { JSONObject js = new JSONObject(); + try { - js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, "create"); // 动作类型 - js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId); // 动作ID - js.put(GTaskStringUtils.GTASK_JSON_INDEX, mParent.getChildTaskIndex(this)); // 排序索引 - // 任务实体数据 + // 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()); // 任务名称 - entity.put(GTaskStringUtils.GTASK_JSON_ENTITY_TYPE, "task"); // 实体类型 - if (getNotes() != null) entity.put(GTaskStringUtils.GTASK_JSON_NOTES, getNotes()); + 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); + if (getNotes() != null) { + entity.put(GTaskStringUtils.GTASK_JSON_NOTES, getNotes()); + } js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity); - // 父任务列表信息 + + // 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()); - // 前一个兄弟任务ID（用于排序） + + // prior_sibling_id if (mPriorSibling != null) { js.put(GTaskStringUtils.GTASK_JSON_PRIOR_SIBLING_ID, mPriorSibling.getGid()); } + } catch (JSONException e) { - throw new ActionFailureException("生成创建任务JSON失败"); + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("fail to generate task-create jsonobject"); } + return js; } - // 生成更新任务的JSON请求 public JSONObject getUpdateAction(int actionId) { JSONObject js = new JSONObject(); + try { - js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, "update"); // 动作类型 - js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId); // 动作ID - js.put(GTaskStringUtils.GTASK_JSON_ID, getGid()); // 任务ID - // 任务实体数据（仅更新变更字段） + // action_type + js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, + GTaskStringUtils.GTASK_JSON_ACTION_TYPE_UPDATE); + + // action_id + js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId); + + // id + js.put(GTaskStringUtils.GTASK_JSON_ID, getGid()); + + // entity_delta JSONObject entity = new JSONObject(); entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName()); - if (getNotes() != null) entity.put(GTaskStringUtils.GTASK_JSON_NOTES, getNotes()); - entity.put(GTaskStringUtils.GTASK_JSON_DELETED, getDeleted()); // 删除状态 + if (getNotes() != null) { + entity.put(GTaskStringUtils.GTASK_JSON_NOTES, getNotes()); + } + entity.put(GTaskStringUtils.GTASK_JSON_DELETED, getDeleted()); js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity); + } catch (JSONException e) { - throw new ActionFailureException("生成更新任务JSON失败"); + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("fail to generate task-update jsonobject"); } + return js; } - // 从远程JSON（GTask数据）设置任务内容 public void setContentByRemoteJSON(JSONObject js) { if (js != null) { try { - setGid(js.getString(GTaskStringUtils.GTASK_JSON_ID)); // 设置GTask ID - setLastModified(js.getLong(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)); // 最后修改时间 - setName(js.getString(GTaskStringUtils.GTASK_JSON_NAME)); // 任务名称 - setNotes(js.getString(GTaskStringUtils.GTASK_JSON_NOTES)); // 任务备注 - setDeleted(js.getBoolean(GTaskStringUtils.GTASK_JSON_DELETED)); // 删除状态 - setCompleted(js.getBoolean(GTaskStringUtils.GTASK_JSON_COMPLETED)); // 完成状态 + // id + if (js.has(GTaskStringUtils.GTASK_JSON_ID)) { + setGid(js.getString(GTaskStringUtils.GTASK_JSON_ID)); + } + + // last_modified + if (js.has(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)) { + setLastModified(js.getLong(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)); + } + + // name + if (js.has(GTaskStringUtils.GTASK_JSON_NAME)) { + setName(js.getString(GTaskStringUtils.GTASK_JSON_NAME)); + } + + // notes + if (js.has(GTaskStringUtils.GTASK_JSON_NOTES)) { + setNotes(js.getString(GTaskStringUtils.GTASK_JSON_NOTES)); + } + + // deleted + if (js.has(GTaskStringUtils.GTASK_JSON_DELETED)) { + setDeleted(js.getBoolean(GTaskStringUtils.GTASK_JSON_DELETED)); + } + + // completed + if (js.has(GTaskStringUtils.GTASK_JSON_COMPLETED)) { + setCompleted(js.getBoolean(GTaskStringUtils.GTASK_JSON_COMPLETED)); + } } catch (JSONException e) { - throw new ActionFailureException("解析远程JSON失败"); + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("fail to get task content from jsonobject"); } } } - // 从本地JSON（笔记数据）设置任务内容 public void setContentByLocalJSON(JSONObject js) { - if (js == null || !js.has(GTaskStringUtils.META_HEAD_NOTE)) return; + if (js == null || !js.has(GTaskStringUtils.META_HEAD_NOTE) + || !js.has(GTaskStringUtils.META_HEAD_DATA)) { + Log.w(TAG, "setContentByLocalJSON: nothing is avaiable"); + } + try { JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE); JSONArray dataArray = js.getJSONArray(GTaskStringUtils.META_HEAD_DATA); - // 仅处理普通笔记类型 - if (note.getInt(NoteColumns.TYPE) != Notes.TYPE_NOTE) return; - // 从数据列表中获取笔记内容作为任务名称 + + if (note.getInt(NoteColumns.TYPE) != Notes.TYPE_NOTE) { + Log.e(TAG, "invalid type"); + return; + } + for (int i = 0; i < dataArray.length(); i++) { JSONObject data = dataArray.getJSONObject(i); - if (data.getString(DataColumns.MIME_TYPE).equals(DataConstants.NOTE)) { + if (TextUtils.equals(data.getString(DataColumns.MIME_TYPE), DataConstants.NOTE)) { setName(data.getString(DataColumns.CONTENT)); break; } } + } catch (JSONException e) { - Log.e(TAG, "解析本地JSON失败", e); + Log.e(TAG, e.toString()); + e.printStackTrace(); } } - // 从任务内容生成本地JSON（用于存储到本地数据库） public JSONObject getLocalJSONFromContent() { String name = getName(); try { if (mMetaInfo == null) { - // 新建任务（无元数据） + // new task created from web + if (name == null) { + Log.w(TAG, "the note seems to be an empty one"); + return null; + } + JSONObject js = new JSONObject(); JSONObject note = new JSONObject(); JSONArray dataArray = new JSONArray(); @@ -149,87 +225,127 @@ public class Task extends Node { js.put(GTaskStringUtils.META_HEAD_NOTE, note); return js; } else { - // 已同步任务（更新元数据） + // synced task JSONObject note = mMetaInfo.getJSONObject(GTaskStringUtils.META_HEAD_NOTE); JSONArray dataArray = mMetaInfo.getJSONArray(GTaskStringUtils.META_HEAD_DATA); + for (int i = 0; i < dataArray.length(); i++) { JSONObject data = dataArray.getJSONObject(i); - if (data.getString(DataColumns.MIME_TYPE).equals(DataConstants.NOTE)) { - data.put(DataColumns.CONTENT, name); + if (TextUtils.equals(data.getString(DataColumns.MIME_TYPE), DataConstants.NOTE)) { + data.put(DataColumns.CONTENT, getName()); break; } } + note.put(NoteColumns.TYPE, Notes.TYPE_NOTE); return mMetaInfo; } } catch (JSONException e) { - Log.e(TAG, "生成本地JSON失败", e); + Log.e(TAG, e.toString()); + e.printStackTrace(); return null; } } - // 设置元数据（本地笔记与GTask的映射） public void setMetaInfo(MetaData metaData) { if (metaData != null && metaData.getNotes() != null) { try { mMetaInfo = new JSONObject(metaData.getNotes()); } catch (JSONException e) { - Log.w(TAG, "解析元数据失败", e); + Log.w(TAG, e.toString()); mMetaInfo = null; } } } - // 判断当前同步动作类型 public int getSyncAction(Cursor c) { try { - if (mMetaInfo == null || !mMetaInfo.has(GTaskStringUtils.META_HEAD_NOTE)) { - return SYNC_ACTION_UPDATE_REMOTE; // 元数据不存在，需从远程更新 + JSONObject noteInfo = null; + if (mMetaInfo != null && mMetaInfo.has(GTaskStringUtils.META_HEAD_NOTE)) { + noteInfo = mMetaInfo.getJSONObject(GTaskStringUtils.META_HEAD_NOTE); + } + + if (noteInfo == null) { + Log.w(TAG, "it seems that note meta has been deleted"); + return SYNC_ACTION_UPDATE_REMOTE; + } + + if (!noteInfo.has(NoteColumns.ID)) { + Log.w(TAG, "remote note id seems to be deleted"); + return SYNC_ACTION_UPDATE_LOCAL; } - JSONObject noteInfo = mMetaInfo.getJSONObject(GTaskStringUtils.META_HEAD_NOTE); - // 验证笔记ID + + // validate the note id now if (c.getLong(SqlNote.ID_COLUMN) != noteInfo.getLong(NoteColumns.ID)) { - return SYNC_ACTION_UPDATE_LOCAL; // ID不匹配，需更新本地 + Log.w(TAG, "note id doesn't match"); + return SYNC_ACTION_UPDATE_LOCAL; } - // 判断本地修改状态 + if (c.getInt(SqlNote.LOCAL_MODIFIED_COLUMN) == 0) { - // 本地未修改 + // there is no local update if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) { - return SYNC_ACTION_NONE; // 无变更 + // no update both side + return SYNC_ACTION_NONE; } else { - return SYNC_ACTION_UPDATE_LOCAL; // 远程有更新，需同步到本地 + // apply remote to local + return SYNC_ACTION_UPDATE_LOCAL; } } else { - // 本地已修改 + // validate gtask id if (!c.getString(SqlNote.GTASK_ID_COLUMN).equals(getGid())) { - return SYNC_ACTION_ERROR; // GTask ID不匹配，错误 + Log.e(TAG, "gtask id doesn't match"); + return SYNC_ACTION_ERROR; } if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) { - return SYNC_ACTION_UPDATE_REMOTE; // 本地修改，需同步到远程 + // local modification only + return SYNC_ACTION_UPDATE_REMOTE; } else { - return SYNC_ACTION_UPDATE_CONFLICT; // 本地与远程都有修改，冲突 + return SYNC_ACTION_UPDATE_CONFLICT; } } } catch (Exception e) { - Log.e(TAG, "获取同步动作失败", e); + Log.e(TAG, e.toString()); + e.printStackTrace(); } + return SYNC_ACTION_ERROR; } - // 判断任务是否值得保存 public boolean isWorthSaving() { - return mMetaInfo != null || - (getName() != null && getName().trim().length() > 0) || - (getNotes() != null && getNotes().trim().length() > 0); - } - - // Getter和Setter方法 - public void setCompleted(boolean completed) { this.mCompleted = completed; } - public void setNotes(String notes) { this.mNotes = notes; } - public void setPriorSibling(Task priorSibling) { this.mPriorSibling = priorSibling; } - public void setParent(TaskList parent) { this.mParent = parent; } - public boolean getCompleted() { return mCompleted; } - public String getNotes() { return mNotes; } - public Task getPriorSibling() { return mPriorSibling; } - public TaskList getParent() { return mParent; } -} \ No newline at end of file + return mMetaInfo != null || (getName() != null && getName().trim().length() > 0) + || (getNotes() != null && getNotes().trim().length() > 0); + } + + public void setCompleted(boolean completed) { + this.mCompleted = completed; + } + + public void setNotes(String notes) { + this.mNotes = notes; + } + + public void setPriorSibling(Task priorSibling) { + this.mPriorSibling = priorSibling; + } + + public void setParent(TaskList parent) { + this.mParent = parent; + } + + public boolean getCompleted() { + return this.mCompleted; + } + + public String getNotes() { + return this.mNotes; + } + + public Task getPriorSibling() { + return this.mPriorSibling; + } + + public TaskList getParent() { + return this.mParent; + } + +} diff --git a/java/net/micode/notes/gtask/data/TaskList.java b/java/net/micode/notes/gtask/data/TaskList.java index ae47bc3..4ea21c5 100644 --- a/java/net/micode/notes/gtask/data/TaskList.java +++ b/java/net/micode/notes/gtask/data/TaskList.java @@ -31,11 +31,11 @@ import java.util.ArrayList; public class TaskList extends Node { - private static final String TAG = TaskList.class.getSimpleName();//tag标记 + private static final String TAG = TaskList.class.getSimpleName(); - private int mIndex;//当前TaskList的指针 + private int mIndex; - private ArrayList mChildren;//类中主要的保存数据的单元，用来实现一个以Task为元素的ArrayList + private ArrayList mChildren; public TaskList() { super(); @@ -43,10 +43,6 @@ public class TaskList extends Node { mIndex = 1; } - /* (non-Javadoc) - * @see net.micode.notes.gtask.data.Node#getCreateAction(int) - * 生成并返回一个包含了一定数据的JSONObject实体 - */ public JSONObject getCreateAction(int actionId) { JSONObject js = new JSONObject(); @@ -78,10 +74,6 @@ public class TaskList extends Node { return js; } - /* (non-Javadoc) - * @see net.micode.notes.gtask.data.Node#getUpdateAction(int) - * 生成并返回一个包含了一定数据的JSONObject实体 - */ public JSONObject getUpdateAction(int actionId) { JSONObject js = new JSONObject(); @@ -228,11 +220,6 @@ public class TaskList extends Node { return mChildren.size(); } - /* - * @param task - * @return 返回值为是否成功添加任务。 - * 功能：在当前任务表末尾添加新的任务。 - */ public boolean addChildTask(Task task) { boolean ret = false; if (task != null && !mChildren.contains(task)) { @@ -247,12 +234,6 @@ public class TaskList extends Node { return ret; } - /* - * @param task - * @param index - * @return - * 功能：在当前任务表的指定位置添加新的任务。 - */ public boolean addChildTask(Task task, int index) { if (index < 0 || index > mChildren.size()) { Log.e(TAG, "add child task: invalid index"); @@ -279,11 +260,6 @@ public class TaskList extends Node { return true; } - /* - * @param task - * @return 返回删除是否成功 - * 功能：删除TaskList中的一个Task - */ public boolean removeChildTask(Task task) { boolean ret = false; int index = mChildren.indexOf(task); @@ -305,12 +281,6 @@ public class TaskList extends Node { return ret; } - /* - * @param task - * @param index - * @return - * 功能：将当前TaskList中含有的某个Task移到index位置 - */ public boolean moveChildTask(Task task, int index) { if (index < 0 || index >= mChildren.size()) { @@ -329,11 +299,6 @@ public class TaskList extends Node { return (removeChildTask(task) && addChildTask(task, index)); } - /** - * @param gid - * @return返回寻找结果 - * 功能：按gid寻找Task - */ public Task findChildTaskByGid(String gid) { for (int i = 0; i < mChildren.size(); i++) { Task t = mChildren.get(i); @@ -344,20 +309,10 @@ public class TaskList extends Node { return null; } - /** - * @param task - * @return - * 功能：返回指定Task的index - */ public int getChildTaskIndex(Task task) { return mChildren.indexOf(task); } - /** - * @param index - * @return - * 功能：返回指定index的Task - */ public Task getChildTaskByIndex(int index) { if (index < 0 || index >= mChildren.size()) { Log.e(TAG, "getTaskByIndex: invalid index"); @@ -366,11 +321,6 @@ public class TaskList extends Node { return mChildren.get(index); } - /** - * @param gid - * @return - * 功能：返回指定gid的Task - */ public Task getChilTaskByGid(String gid) { for (Task task : mChildren) { if (task.getGid().equals(gid)) diff --git a/java/net/micode/notes/gtask/remote/GTaskClient.java b/java/net/micode/notes/gtask/remote/GTaskClient.java index 2e018e8..cb7582c 100644 --- a/java/net/micode/notes/gtask/remote/GTaskClient.java +++ b/java/net/micode/notes/gtask/remote/GTaskClient.java @@ -134,7 +134,7 @@ public class GTaskClient { // need to re-login after account switch 重新登录操作 if (mLoggedin && !TextUtils.equals(getSyncAccount().name, NotesPreferenceActivity - .getSyncAccountName(activity))) { + .getSyncAccountName(activity))) { mLoggedin = false; } diff --git a/java/net/micode/notes/gtask/remote/GTaskManager.java b/java/net/micode/notes/gtask/remote/GTaskManager.java index d9526dd..2c52d2d 100644 --- a/java/net/micode/notes/gtask/remote/GTaskManager.java +++ b/java/net/micode/notes/gtask/remote/GTaskManager.java @@ -258,7 +258,7 @@ public class GTaskManager { if (name.startsWith(GTaskStringUtils.MIUI_FOLDER_PREFFIX) && !name.equals(GTaskStringUtils.MIUI_FOLDER_PREFFIX - + GTaskStringUtils.FOLDER_META)) { + + GTaskStringUtils.FOLDER_META)) { TaskList tasklist = new TaskList(); tasklist.setContentByRemoteJSON(object); mGTaskListHashMap.put(gid, tasklist); @@ -441,7 +441,7 @@ public class GTaskManager { try { c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE, "(_id=?)", new String[] { - String.valueOf(Notes.ID_CALL_RECORD_FOLDER) + String.valueOf(Notes.ID_CALL_RECORD_FOLDER) }, null); if (c != null) { if (c.moveToNext()) { diff --git a/java/net/micode/notes/tool/BackupUtils.java b/java/net/micode/notes/tool/BackupUtils.java index dbb04c1..2c300f7 100644 --- a/java/net/micode/notes/tool/BackupUtils.java +++ b/java/net/micode/notes/tool/BackupUtils.java @@ -150,7 +150,7 @@ public class BackupUtils { // Query notes belong to this folder Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI, NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[] { - folderId + folderId }, null); if (notesCursor != null) {//利用光标来扫描内容，区别为callnote和note两种，靠ps.printline输出 @@ -175,7 +175,7 @@ public class BackupUtils { private void exportNoteToText(String noteId, PrintStream ps) { Cursor dataCursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] { - noteId + noteId }, null); if (dataCursor != null) { diff --git a/java/net/micode/notes/tool/DataUtils.java b/java/net/micode/notes/tool/DataUtils.java index c184244..2a14982 100644 --- a/java/net/micode/notes/tool/DataUtils.java +++ b/java/net/micode/notes/tool/DataUtils.java @@ -52,13 +52,13 @@ public class DataUtils { if(id == Notes.ID_ROOT_FOLDER) { Log.e(TAG, "Don't delete system folder root"); continue; - }//如果发现是根文件夹，则不删除 + } ContentProviderOperation.Builder builder = ContentProviderOperation .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); operationList.add(builder.build()); } try { - ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); //数据库事务，数据库事务是由一组数据库操作序列组成，事务作为一个整体被执行 + 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; diff --git a/java/net/micode/notes/ui/AlarmAlertActivity.java b/java/net/micode/notes/ui/AlarmAlertActivity.java index 85723be..5bf372d 100644 --- a/java/net/micode/notes/ui/AlarmAlertActivity.java +++ b/java/net/micode/notes/ui/AlarmAlertActivity.java @@ -1,19 +1,3 @@ -/* - * 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; @@ -39,58 +23,81 @@ 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 long mNoteId; //文本在数据库存储中的ID号 + private String mSnippet; //闹钟提示时出现的文本片段 private static final int SNIPPET_PREW_MAX_LEN = 60; MediaPlayer mPlayer; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); + //Bundle类型的数据与Map类型的数据相似，都是以key-value的形式存储数据的 + //onsaveInstanceState方法是用来保存Activity的状态的 + //能从onCreate的参数savedInsanceState中获得状态数据 requestWindowFeature(Window.FEATURE_NO_TITLE); + //界面显示——无标题 final Window win = getWindow(); win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED); if (!isScreenOn()) { win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON + //保持窗体点亮 | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON + //将窗体点亮 | WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON + //允许窗体点亮时锁屏 | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR); - } + }//在手机锁屏后如果到了闹钟提示时间，点亮屏幕 Intent intent = getIntent(); try { mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1)); mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId); + //根据ID从数据库中获取标签的内容； + //getContentResolver（）是实现数据共享，实例存储。 mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0, SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info) : mSnippet; + //判断标签片段是否达到符合长度 } catch (IllegalArgumentException e) { e.printStackTrace(); return; } - + /* + try + { + // 代码区 + } + catch(Exception e) + { + // 异常处理 + } + 代码区如果有错误，就会返回所写异常的处理。*/ mPlayer = new MediaPlayer(); if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) { showActionDialog(); + //弹出对话框 playAlarmSound(); + //闹钟提示音激发 } else { finish(); + //完成闹钟动作 } } private boolean isScreenOn() { + //判断屏幕是否锁屏，调用系统函数判断，最后返回值是布尔类型 PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE); return pm.isScreenOn(); } private void playAlarmSound() { + //闹钟提示音激发 Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM); - + //调用系统的铃声管理URI，得到闹钟提示音 int silentModeStreams = Settings.System.getInt(getContentResolver(), Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0); @@ -101,12 +108,19 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD } try { mPlayer.setDataSource(this, url); + //方法：setDataSource(Context context, Uri uri) + //解释：无返回值，设置多媒体数据来源【根据 Uri】 mPlayer.prepare(); + //准备同步 mPlayer.setLooping(true); + //设置是否循环播放 mPlayer.start(); + //开始播放 } catch (IllegalArgumentException e) { // TODO Auto-generated catch block e.printStackTrace(); + //e.printStackTrace()函数功能是抛出异常， 还将显示出更深的调用信息 + //System.out.println(e)，这个方法打印出异常，并且输出在哪里出现的异常 } catch (SecurityException e) { // TODO Auto-generated catch block e.printStackTrace(); @@ -121,38 +135,58 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD private void showActionDialog() { AlertDialog.Builder dialog = new AlertDialog.Builder(this); + //AlertDialog的构造方法全部是Protected的 + //所以不能直接通过new一个AlertDialog来创建出一个AlertDialog。 + //要创建一个AlertDialog，就要用到AlertDialog.Builder中的create()方法 + //如这里的dialog就是新建了一个AlertDialog dialog.setTitle(R.string.app_name); + //为对话框设置标题 dialog.setMessage(mSnippet); + //为对话框设置内容 dialog.setPositiveButton(R.string.notealert_ok, this); + //给对话框添加"Yes"按钮 if (isScreenOn()) { dialog.setNegativeButton(R.string.notealert_enter, this); - } + }//对话框添加"No"按钮 dialog.show().setOnDismissListener(this); } public void onClick(DialogInterface dialog, int which) { switch (which) { + //用which来选择click后下一步的操作 case DialogInterface.BUTTON_NEGATIVE: + //这是取消操作 Intent intent = new Intent(this, NoteEditActivity.class); + //实现两个类间的数据传输 intent.setAction(Intent.ACTION_VIEW); + //设置动作属性 intent.putExtra(Intent.EXTRA_UID, mNoteId); + //实现key-value对 + //EXTRA_UID为key；mNoteId为键 startActivity(intent); + //开始动作 break; default: + //这是确定操作 break; } } public void onDismiss(DialogInterface dialog) { + //忽略 stopAlarmSound(); + //停止闹钟声音 finish(); + //完成该动作 } private void stopAlarmSound() { if (mPlayer != null) { mPlayer.stop(); + //停止播放 mPlayer.release(); + //释放MediaPlayer对象 mPlayer = null; } } -} +} \ No newline at end of file diff --git a/java/net/micode/notes/ui/AlarmInitReceiver.java b/java/net/micode/notes/ui/AlarmInitReceiver.java index f221202..4163ccd 100644 --- a/java/net/micode/notes/ui/AlarmInitReceiver.java +++ b/java/net/micode/notes/ui/AlarmInitReceiver.java @@ -1,19 +1,3 @@ -/* - * 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; @@ -31,21 +15,25 @@ import net.micode.notes.data.Notes.NoteColumns; public class AlarmInitReceiver extends BroadcastReceiver { private static final String [] PROJECTION = new String [] { - NoteColumns.ID, - NoteColumns.ALERTED_DATE + NoteColumns.ID, + NoteColumns.ALERTED_DATE }; - + //对数据库的操作，调用标签ID和闹钟时间 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(); + //System.currentTimeMillis()产生一个当前的毫秒 + //这个毫秒其实就是自1970年1月1日0时起的毫秒数 Cursor c = context.getContentResolver().query(Notes.CONTENT_NOTE_URI, PROJECTION, NoteColumns.ALERTED_DATE + ">? AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE, new String[] { String.valueOf(currentDate) }, + //将long变量currentDate转化为字符串 null); + //Cursor在这里的作用是通过查找数据库中的标签内容，找到和当前系统时间相等的标签 if (c != null) { if (c.moveToFirst()) { @@ -61,5 +49,8 @@ public class AlarmInitReceiver extends BroadcastReceiver { } c.close(); } + //然而通过网上查找资料发现，对于闹钟机制的启动，通常需要上面的几个步骤 + //如新建Intent、PendingIntent以及AlarmManager等 + //这里就是根据数据库里的闹钟时间创建一个闹钟机制 } -} +} \ No newline at end of file diff --git a/java/net/micode/notes/ui/AlarmReceiver.java b/java/net/micode/notes/ui/AlarmReceiver.java index 54e503b..6e22aff 100644 --- a/java/net/micode/notes/ui/AlarmReceiver.java +++ b/java/net/micode/notes/ui/AlarmReceiver.java @@ -1,19 +1,3 @@ -/* - * 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; @@ -24,7 +8,13 @@ public class AlarmReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { intent.setClass(context, AlarmAlertActivity.class); + //启动AlarmAlertActivity intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); + //activity要存在于activity的栈中，而非activity的途径启动activity时必然不存在一个activity的栈 + //所以要新起一个栈装入启动的activity context.startActivity(intent); } } +//这是实现alarm这个功能最接近用户层的包，基于上面的两个包， +//作用还需要深究但是对于setClass和addFlags的 + \ No newline at end of file diff --git a/java/net/micode/notes/ui/DateTimePicker.java b/java/net/micode/notes/ui/DateTimePicker.java index 496b0cd..8d74062 100644 --- a/java/net/micode/notes/ui/DateTimePicker.java +++ b/java/net/micode/notes/ui/DateTimePicker.java @@ -1,19 +1,3 @@ -/* - * 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; @@ -29,7 +13,8 @@ import android.widget.FrameLayout; import android.widget.NumberPicker; public class DateTimePicker extends FrameLayout { - + //FrameLayout是布局模板之一 + //所有的子元素全部在屏幕的右上方 private static final boolean DEFAULT_ENABLE_STATE = true; private static final int HOURS_IN_HALF_DAY = 12; @@ -45,13 +30,15 @@ public class DateTimePicker extends FrameLayout { 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; - + //初始化控件 private final NumberPicker mDateSpinner; private final NumberPicker mHourSpinner; private final NumberPicker mMinuteSpinner; private final NumberPicker mAmPmSpinner; + //NumberPicker是数字选择器 + //这里定义的四个变量全部是在设置闹钟时需要选择的变量（如日期、时、分、上午或者下午） private Calendar mDate; - + //定义了Calendar类型的变量mDate，用于操作时间 private String[] mDateDisplayValues = new String[DAYS_IN_ALL_WEEK]; private boolean mIsAm; @@ -71,41 +58,49 @@ public class DateTimePicker extends FrameLayout { updateDateControl(); onDateTimeChanged(); } - }; + };//OnValueChangeListener，这是时间改变监听器，这里主要是对日期的监听 + //将现在日期的值传递给mDate；updateDateControl是同步操作 private NumberPicker.OnValueChangeListener mOnHourChangedListener = new NumberPicker.OnValueChangeListener() { + //这里是对 小时（Hour） 的监听 @Override public void onValueChange(NumberPicker picker, int oldVal, int newVal) { boolean isDateChanged = false; Calendar cal = Calendar.getInstance(); + //声明一个Calendar的变量cal，便于后续的操作 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; + //这里是对于12小时制时，晚上11点和12点交替时对日期的更改 } 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; } + //这里是对于12小时制时，凌晨11点和12点交替时对日期的更改 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(); - } + }//这里是对于12小时制时，中午11点和12点交替时对AM和PM的更改 } else { if (oldVal == HOURS_IN_ALL_DAY - 1 && newVal == 0) { cal.setTimeInMillis(mDate.getTimeInMillis()); cal.add(Calendar.DAY_OF_YEAR, 1); isDateChanged = true; + //这里是对于24小时制时，晚上11点和12点交替时对日期的更改 } else if (oldVal == 0 && newVal == HOURS_IN_ALL_DAY - 1) { cal.setTimeInMillis(mDate.getTimeInMillis()); cal.add(Calendar.DAY_OF_YEAR, -1); isDateChanged = true; } - } + } //这里是对于12小时制时，凌晨11点和12点交替时对日期的更改 int newHour = mHourSpinner.getValue() % HOURS_IN_HALF_DAY + (mIsAm ? 0 : HOURS_IN_HALF_DAY); + //通过数字选择器对newHour的赋值 mDate.set(Calendar.HOUR_OF_DAY, newHour); + //通过set函数将新的Hour值传给mDate onDateTimeChanged(); if (isDateChanged) { setCurrentYear(cal.get(Calendar.YEAR)); @@ -117,15 +112,19 @@ public class DateTimePicker extends FrameLayout { private NumberPicker.OnValueChangeListener mOnMinuteChangedListener = new NumberPicker.OnValueChangeListener() { @Override + //这里是对 分钟（Minute）改变的监听 public void onValueChange(NumberPicker picker, int oldVal, int newVal) { int minValue = mMinuteSpinner.getMinValue(); int maxValue = mMinuteSpinner.getMaxValue(); int offset = 0; + //设置offset，作为小时改变的一个记录数据 if (oldVal == maxValue && newVal == minValue) { offset += 1; } else if (oldVal == minValue && newVal == maxValue) { offset -= 1; } + //如果原值为59，新值为0，则offset加1 + //如果原值为0，新值为59，则offset减1 if (offset != 0) { mDate.add(Calendar.HOUR_OF_DAY, offset); mHourSpinner.setValue(getCurrentHour()); @@ -145,6 +144,7 @@ public class DateTimePicker extends FrameLayout { }; private NumberPicker.OnValueChangeListener mOnAmPmChangedListener = new NumberPicker.OnValueChangeListener() { + //对AM和PM的监听 @Override public void onValueChange(NumberPicker picker, int oldVal, int newVal) { mIsAm = !mIsAm; @@ -160,24 +160,27 @@ public class DateTimePicker extends FrameLayout { public interface OnDateTimeChangedListener { void onDateTimeChanged(DateTimePicker view, int year, int month, - int dayOfMonth, int hourOfDay, int minute); + int dayOfMonth, int hourOfDay, int minute); } public DateTimePicker(Context context) { this(context, System.currentTimeMillis()); - } + }//通过对数据库的访问，获取当前的系统时间 public DateTimePicker(Context context, long date) { this(context, date, DateFormat.is24HourFormat(context)); - } + }//上面函数的得到的是一个天文数字（1970至今的秒数），需要DateFormat将其变得有意义 public DateTimePicker(Context context, long date, boolean is24HourView) { super(context); + //获取系统时间 mDate = Calendar.getInstance(); mInitialising = true; mIsAm = getCurrentHourOfDay() >= HOURS_IN_HALF_DAY; inflate(context, R.layout.datetime_picker, this); - + //如果当前Activity里用到别的layout，比如对话框layout + //还要设置这个layout上的其他组件的内容，就必须用inflate()方法先将对话框的layout找出来 + //然后再用findViewById()找到它上面的其它组件 mDateSpinner = (NumberPicker) findViewById(R.id.date); mDateSpinner.setMinValue(DATE_SPINNER_MIN_VAL); mDateSpinner.setMaxValue(DATE_SPINNER_MAX_VAL); @@ -185,7 +188,7 @@ public class DateTimePicker extends FrameLayout { mHourSpinner = (NumberPicker) findViewById(R.id.hour); mHourSpinner.setOnValueChangedListener(mOnHourChangedListener); - mMinuteSpinner = (NumberPicker) findViewById(R.id.minute); + mMinuteSpinner = (NumberPicker) findViewById(R.id.minute); mMinuteSpinner.setMinValue(MINUT_SPINNER_MIN_VAL); mMinuteSpinner.setMaxValue(MINUT_SPINNER_MAX_VAL); mMinuteSpinner.setOnLongPressUpdateInterval(100); @@ -226,7 +229,9 @@ public class DateTimePicker extends FrameLayout { mAmPmSpinner.setEnabled(enabled); mIsEnabled = enabled; } - + //存在疑问！！！！！！！！！！！！！setEnabled的作用 + //下面的代码通过原程序的注释已经比较清晰，另外可以通过函数名来判断 + //下面的各函数主要是对上面代码引用到的各函数功能的实现 @Override public boolean isEnabled() { return mIsEnabled; @@ -239,7 +244,7 @@ public class DateTimePicker extends FrameLayout { */ public long getCurrentDateInTimeMillis() { return mDate.getTimeInMillis(); - } + }//实现函数——得到当前的秒数 /** * Set the current date @@ -251,7 +256,7 @@ public class DateTimePicker extends FrameLayout { 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)); - } + }//实现函数功能——设置当前的时间，参数是date /** * Set the current date @@ -263,19 +268,20 @@ public class DateTimePicker extends FrameLayout { * @param minute The current minute */ public void setCurrentDate(int year, int month, - int dayOfMonth, int hourOfDay, int minute) { + int dayOfMonth, int hourOfDay, int minute) { setCurrentYear(year); setCurrentMonth(month); setCurrentDay(dayOfMonth); setCurrentHour(hourOfDay); setCurrentMinute(minute); - } + }//实现函数功能——设置当前的时间，参数是各详细的变量 /** * Get current year * * @return The current year */ + //下面是得到year、month、day等值 public int getCurrentYear() { return mDate.get(Calendar.YEAR); } @@ -446,7 +452,7 @@ public class DateTimePicker extends FrameLayout { mDateSpinner.setDisplayedValues(mDateDisplayValues); mDateSpinner.setValue(DAYS_IN_ALL_WEEK / 2); mDateSpinner.invalidate(); - } + }// 对于星期几的算法 private void updateAmPmControl() { if (mIs24HourView) { @@ -455,7 +461,7 @@ public class DateTimePicker extends FrameLayout { int index = mIsAm ? Calendar.AM : Calendar.PM; mAmPmSpinner.setValue(index); mAmPmSpinner.setVisibility(View.VISIBLE); - } + }// 对于上下午操作的算法 } private void updateHourControl() { @@ -465,7 +471,7 @@ public class DateTimePicker extends FrameLayout { } else { mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW); mHourSpinner.setMaxValue(HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW); - } + }// 对与小时的算法 } /** @@ -482,4 +488,4 @@ public class DateTimePicker extends FrameLayout { getCurrentMonth(), getCurrentDay(), getCurrentHourOfDay(), getCurrentMinute()); } } -} +} \ No newline at end of file diff --git a/java/net/micode/notes/ui/DateTimePickerDialog.java b/java/net/micode/notes/ui/DateTimePickerDialog.java index 2c47ba4..d6ad95e 100644 --- a/java/net/micode/notes/ui/DateTimePickerDialog.java +++ b/java/net/micode/notes/ui/DateTimePickerDialog.java @@ -1,19 +1,3 @@ -/* - * 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; @@ -32,35 +16,47 @@ import android.text.format.DateUtils; public class DateTimePickerDialog extends AlertDialog implements OnClickListener { private Calendar mDate = Calendar.getInstance(); + //创建一个Calendar类型的变量 mDate，方便时间的操作 private boolean mIs24HourView; private OnDateTimeSetListener mOnDateTimeSetListener; + //声明一个时间日期滚动选择控件 mOnDateTimeSetListener private DateTimePicker mDateTimePicker; + //DateTimePicker控件，控件一般用于让用户可以从日期列表中选择单个值。 + //运行时，单击控件边上的下拉箭头，会显示为两个部分：一个下拉列表，一个用于选择日期的 public interface OnDateTimeSetListener { void OnDateTimeSet(AlertDialog dialog, long date); } public DateTimePickerDialog(Context context, long date) { + //对该界面对话框的实例化 super(context); + //对数据库的操作 mDateTimePicker = new DateTimePicker(context); setView(mDateTimePicker); + //添加一个子视图 mDateTimePicker.setOnDateTimeChangedListener(new OnDateTimeChangedListener() { public void onDateTimeChanged(DateTimePicker view, int year, int month, - int dayOfMonth, int hourOfDay, int minute) { + 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); + //将视图中的各选项设置为系统当前时间 updateTitle(mDate.getTimeInMillis()); } }); mDate.setTimeInMillis(date); + //得到系统时间 mDate.set(Calendar.SECOND, 0); + //将秒数设置为0 mDateTimePicker.setCurrentDate(mDate.getTimeInMillis()); setButton(context.getString(R.string.datetime_dialog_ok), this); setButton2(context.getString(R.string.datetime_dialog_cancel), (OnClickListener)null); + //设置按钮 set24HourView(DateFormat.is24HourFormat(this.getContext())); + //时间标准化打印 updateTitle(mDate.getTimeInMillis()); } @@ -70,21 +66,22 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener public void setOnDateTimeSetListener(OnDateTimeSetListener callBack) { mOnDateTimeSetListener = callBack; - } + }//将时间日期滚动选择控件实例化 private void updateTitle(long date) { int flag = - DateUtils.FORMAT_SHOW_YEAR | - DateUtils.FORMAT_SHOW_DATE | - DateUtils.FORMAT_SHOW_TIME; + 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)); - } + }//android开发中常见日期管理工具类（API）——DateUtils：按照上下午显示时间 public void onClick(DialogInterface arg0, int arg1) { if (mOnDateTimeSetListener != null) { mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis()); } - } + }//第一个参数arg0是接收到点击事件的对话框 + //第二个参数arg1是该对话框上的按钮 } \ No newline at end of file diff --git a/java/net/micode/notes/ui/DropdownMenu.java b/java/net/micode/notes/ui/DropdownMenu.java index 613dc74..c831a9b 100644 --- a/java/net/micode/notes/ui/DropdownMenu.java +++ b/java/net/micode/notes/ui/DropdownMenu.java @@ -1,19 +1,3 @@ -/* - * 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; @@ -30,14 +14,18 @@ import net.micode.notes.R; public class DropdownMenu { private Button mButton; private PopupMenu mPopupMenu; + //声明一个下拉菜单 private Menu mMenu; public DropdownMenu(Context context, Button button, int menuId) { mButton = button; mButton.setBackgroundResource(R.drawable.dropdown_icon); + //设置这个view的背景 mPopupMenu = new PopupMenu(context, mButton); mMenu = mPopupMenu.getMenu(); mPopupMenu.getMenuInflater().inflate(menuId, mMenu); + //MenuInflater是用来实例化Menu目录下的Menu布局文件 + //根据ID来确认menu的内容选项 mButton.setOnClickListener(new OnClickListener() { public void onClick(View v) { mPopupMenu.show(); @@ -48,14 +36,14 @@ public class DropdownMenu { public void setOnDropdownMenuItemClickListener(OnMenuItemClickListener listener) { if (mPopupMenu != null) { mPopupMenu.setOnMenuItemClickListener(listener); - } + }//设置菜单的监听 } public MenuItem findItem(int id) { return mMenu.findItem(id); - } + }//对于菜单选项的初始化，根据索引搜索菜单需要的选项 public void setTitle(CharSequence title) { mButton.setText(title); - } -} + }//布局文件，设置标题 +} \ No newline at end of file diff --git a/java/net/micode/notes/ui/FoldersListAdapter.java b/java/net/micode/notes/ui/FoldersListAdapter.java index 96b77da..b6867fb 100644 --- a/java/net/micode/notes/ui/FoldersListAdapter.java +++ b/java/net/micode/notes/ui/FoldersListAdapter.java @@ -1,19 +1,3 @@ -/* - * 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; @@ -30,10 +14,14 @@ import net.micode.notes.data.Notes.NoteColumns; public class FoldersListAdapter extends CursorAdapter { + //CursorAdapter是Cursor和ListView的接口 + //FoldersListAdapter继承了CursorAdapter的类 + //主要作用是便签数据库和用户的交互 + //这里就是用folder（文件夹）的形式展现给用户 public static final String [] PROJECTION = { - NoteColumns.ID, - NoteColumns.SNIPPET - }; + NoteColumns.ID, + NoteColumns.SNIPPET + };//调用数据库中便签的ID和片段 public static final int ID_COLUMN = 0; public static final int NAME_COLUMN = 1; @@ -41,12 +29,13 @@ public class FoldersListAdapter extends CursorAdapter { public FoldersListAdapter(Context context, Cursor c) { super(context, c); // TODO Auto-generated constructor stub - } + }//数据库操作 @Override public View newView(Context context, Cursor cursor, ViewGroup parent) { + //ViewGroup是容器 return new FolderListItem(context); - } + }//创建一个文件夹，对于各文件夹中子标签的初始化 @Override public void bindView(View view, Context context, Cursor cursor) { @@ -55,20 +44,22 @@ public class FoldersListAdapter extends CursorAdapter { .getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN); ((FolderListItem) view).bind(folderName); } - } + }//将各个布局文件绑定起来 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); - } + }//根据数据库中标签的ID得到标签的各项内容 private class FolderListItem extends LinearLayout { private TextView mName; public FolderListItem(Context context) { super(context); + //操作数据库 inflate(context, R.layout.folder_list_item, this); + //根据布局文件的名字等信息将其找出来 mName = (TextView) findViewById(R.id.tv_folder_name); } @@ -77,4 +68,4 @@ public class FoldersListAdapter extends CursorAdapter { } } -} +} \ No newline at end of file diff --git a/java/net/micode/notes/ui/NoteEditActivity.java b/java/net/micode/notes/ui/NoteEditActivity.java index 96a9ff8..0faa62e 100644 --- a/java/net/micode/notes/ui/NoteEditActivity.java +++ b/java/net/micode/notes/ui/NoteEditActivity.java @@ -1,19 +1,3 @@ -/* - * 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; @@ -74,6 +58,8 @@ import java.util.regex.Pattern; public class NoteEditActivity extends Activity implements OnClickListener, NoteSettingChangedListener, OnTextViewChangeListener { + //该类主要是针对标签的编辑 + //继承了系统内部许多和监听有关的类 private class HeadViewHolder { public TextView tvModified; @@ -83,7 +69,7 @@ public class NoteEditActivity extends Activity implements OnClickListener, public ImageView ibSetBgColor; } - + //使用Map实现数据存储 private static final Map sBgSelectorBtnsMap = new HashMap(); static { sBgSelectorBtnsMap.put(R.id.iv_bg_yellow, ResourceParser.YELLOW); @@ -91,6 +77,7 @@ public class NoteEditActivity extends Activity implements OnClickListener, 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); + //put函数是将指定值和指定键相连 } private static final Map sBgSelectorSelectionMap = new HashMap(); @@ -100,6 +87,7 @@ public class NoteEditActivity extends Activity implements OnClickListener, 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); + //put函数是将指定值和指定键相连 } private static final Map sFontSizeBtnsMap = new HashMap(); @@ -108,6 +96,7 @@ public class NoteEditActivity extends Activity implements OnClickListener, 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); + //put函数是将指定值和指定键相连 } private static final Map sFontSelectorSelectionMap = new HashMap(); @@ -116,6 +105,7 @@ public class NoteEditActivity extends Activity implements OnClickListener, 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); + //put函数是将指定值和指定键相连 } private static final String TAG = "NoteEditActivity"; @@ -123,20 +113,23 @@ public class NoteEditActivity extends Activity implements OnClickListener, private HeadViewHolder mNoteHeaderHolder; private View mHeadViewPanel; - + //私有化一个界面操作mHeadViewPanel，对表头的操作 private View mNoteBgColorSelector; - + //私有化一个界面操作mNoteBgColorSelector，对背景颜色的操作 private View mFontSizeSelector; - + //私有化一个界面操作mFontSizeSelector，对标签字体的操作 private EditText mNoteEditor; - + //声明编辑控件，对文本操作 private View mNoteEditorPanel; - - private WorkingNote mWorkingNote; - + //私有化一个界面操作mNoteEditorPanel，文本编辑的控制板 + //private WorkingNote mWorkingNote; + public WorkingNote mWorkingNote; + //对模板WorkingNote的初始化 private SharedPreferences mSharedPrefs; + //私有化SharedPreferences的数据存储方式 + //它的本质是基于XML文件存储key-value键值对数据 private int mFontSizeId; - + //用于操作字体的大小 private static final String PREFERENCE_FONT_SIZE = "pref_font_size"; private static final int SHORTCUT_ICON_TITLE_MAX_LEN = 10; @@ -145,7 +138,7 @@ public class NoteEditActivity extends Activity implements OnClickListener, public static final String TAG_UNCHECKED = String.valueOf('\u25A1'); private LinearLayout mEditTextList; - + //线性布局 private String mUserQuery; private Pattern mPattern; @@ -153,7 +146,7 @@ public class NoteEditActivity extends Activity implements OnClickListener, protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); this.setContentView(R.layout.note_edit); - + //对数据库的访问操作 if (savedInstanceState == null && !initActivityState(getIntent())) { finish(); return; @@ -176,7 +169,7 @@ public class NoteEditActivity extends Activity implements OnClickListener, return; } Log.d(TAG, "Restoring from killed activity"); - } + }//为防止内存不足时程序的终止，在这里有一个保存现场的函数 } private boolean initActivityState(Intent intent) { @@ -188,34 +181,42 @@ public class NoteEditActivity extends Activity implements OnClickListener, if (TextUtils.equals(Intent.ACTION_VIEW, intent.getAction())) { long noteId = intent.getLongExtra(Intent.EXTRA_UID, 0); mUserQuery = ""; - + //如果用户实例化标签时，系统并未给出标签ID /** * Starting from the searched result */ + //根据键值查找ID if (intent.hasExtra(SearchManager.EXTRA_DATA_KEY)) { noteId = Long.parseLong(intent.getStringExtra(SearchManager.EXTRA_DATA_KEY)); mUserQuery = intent.getStringExtra(SearchManager.USER_QUERY); } - + //如果ID在数据库中未找到 if (!DataUtils.visibleInNoteDatabase(getContentResolver(), noteId, Notes.TYPE_NOTE)) { Intent jump = new Intent(this, NotesListActivity.class); startActivity(jump); + //程序将跳转到上面声明的intent——jump showToast(R.string.error_note_not_exist); finish(); return false; - } else { + } + //ID在数据库中找到 + else { mWorkingNote = WorkingNote.load(this, noteId); if (mWorkingNote == null) { Log.e(TAG, "load note failed with note id" + noteId); + //打印出红色的错误信息 finish(); return false; } } + //setSoftInputMode——软键盘输入模式 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 + // intent.getAction() + // 大多用于broadcast发送广播时给机制（intent）设置一个action，就是一个字符串 + // 用户可以通过receive（接受）intent，通过 getAction得到的字符串，来决定做什么 long folderId = intent.getLongExtra(Notes.INTENT_EXTRA_FOLDER_ID, 0); int widgetId = intent.getIntExtra(Notes.INTENT_EXTRA_WIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID); @@ -223,7 +224,7 @@ public class NoteEditActivity extends Activity implements OnClickListener, Notes.TYPE_WIDGET_INVALIDE); int bgResId = intent.getIntExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, ResourceParser.getDefaultBgId(this)); - + // intent.getInt（Long、String）Extra是对各变量的语法分析 // Parse call-record note String phoneNumber = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER); long callDate = intent.getLongExtra(Notes.INTENT_EXTRA_CALL_DATE, 0); @@ -240,15 +241,17 @@ public class NoteEditActivity extends Activity implements OnClickListener, finish(); return false; } + //将电话号码与手机的号码簿相关 } else { mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId, widgetType, bgResId); mWorkingNote.convertToCallNote(phoneNumber, callDate); + // } } else { mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId, widgetType, bgResId); - } + }//创建一个新的WorkingNote getWindow().setSoftInputMode( WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE @@ -269,8 +272,10 @@ public class NoteEditActivity extends Activity implements OnClickListener, } private void initNoteScreen() { + //对界面的初始化操作 mNoteEditor.setTextAppearance(this, TextAppearanceResources .getTexAppearanceResource(mFontSizeId)); + //设置外观 if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) { switchToListMode(mWorkingNote.getContent()); } else { @@ -294,18 +299,21 @@ public class NoteEditActivity extends Activity implements OnClickListener, */ showAlertHeader(); } - + //设置闹钟的显示 private void showAlertHeader() { if (mWorkingNote.hasClockAlert()) { long time = System.currentTimeMillis(); if (time > mWorkingNote.getAlertDate()) { mNoteHeaderHolder.tvAlertDate.setText(R.string.note_alert_expired); - } else { + } + //如果系统时间大于了闹钟设置的时间，那么闹钟失效 + else { mNoteHeaderHolder.tvAlertDate.setText(DateUtils.getRelativeTimeSpanString( mWorkingNote.getAlertDate(), time, DateUtils.MINUTE_IN_MILLIS)); } mNoteHeaderHolder.tvAlertDate.setVisibility(View.VISIBLE); mNoteHeaderHolder.ivAlertIcon.setVisibility(View.VISIBLE); + //显示闹钟开启的图标 } else { mNoteHeaderHolder.tvAlertDate.setVisibility(View.GONE); mNoteHeaderHolder.ivAlertIcon.setVisibility(View.GONE); @@ -329,26 +337,29 @@ public class NoteEditActivity extends Activity implements OnClickListener, if (!mWorkingNote.existInDatabase()) { saveNote(); } + //在创建一个新的标签时，先在数据库中匹配 + //如果不存在，那么先在数据库中存储 outState.putLong(Intent.EXTRA_UID, mWorkingNote.getNoteId()); Log.d(TAG, "Save working note id: " + mWorkingNote.getNoteId() + " onSaveInstanceState"); } @Override + //MotionEvent是对屏幕触控的传递机制 public boolean dispatchTouchEvent(MotionEvent ev) { if (mNoteBgColorSelector.getVisibility() == View.VISIBLE && !inRangeOfView(mNoteBgColorSelector, ev)) { mNoteBgColorSelector.setVisibility(View.GONE); return true; - } + }//颜色选择器在屏幕上可见 if (mFontSizeSelector.getVisibility() == View.VISIBLE && !inRangeOfView(mFontSizeSelector, ev)) { mFontSizeSelector.setVisibility(View.GONE); return true; - } + }//字体大小选择器在屏幕上可见 return super.dispatchTouchEvent(ev); } - + //对屏幕触控的坐标进行操作 private boolean inRangeOfView(View view, MotionEvent ev) { int []location = new int[2]; view.getLocationOnScreen(location); @@ -357,9 +368,11 @@ public class NoteEditActivity extends Activity implements OnClickListener, if (ev.getX() < x || ev.getX() > (x + view.getWidth()) || ev.getY() < y - || ev.getY() > (y + view.getHeight())) { - return false; - } + || ev.getY() > (y + view.getHeight())) + //如果触控的位置超出了给定的范围，返回false + { + return false; + } return true; } @@ -377,13 +390,13 @@ public class NoteEditActivity extends Activity implements OnClickListener, for (int id : sBgSelectorBtnsMap.keySet()) { ImageView iv = (ImageView) findViewById(id); iv.setOnClickListener(this); - } + }//对标签各项属性内容的初始化 mFontSizeSelector = findViewById(R.id.font_size_selector); for (int id : sFontSizeBtnsMap.keySet()) { View view = findViewById(id); view.setOnClickListener(this); - }; + };//对字体大小的选择 mSharedPrefs = PreferenceManager.getDefaultSharedPreferences(this); mFontSizeId = mSharedPrefs.getInt(PREFERENCE_FONT_SIZE, ResourceParser.BG_DEFAULT_FONT_SIZE); /** @@ -405,7 +418,7 @@ public class NoteEditActivity extends Activity implements OnClickListener, } clearSettingState(); } - + //和桌面小工具的同步 private void updateWidget() { Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE); if (mWorkingNote.getWidgetType() == Notes.TYPE_WIDGET_2X) { @@ -418,7 +431,7 @@ public class NoteEditActivity extends Activity implements OnClickListener, } intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[] { - mWorkingNote.getWidgetId() + mWorkingNote.getWidgetId() }); sendBroadcast(intent); @@ -450,7 +463,7 @@ public class NoteEditActivity extends Activity implements OnClickListener, } mFontSizeSelector.setVisibility(View.GONE); } - } + }//************************存在问题 @Override public void onBackPressed() { @@ -481,6 +494,7 @@ public class NoteEditActivity extends Activity implements OnClickListener, } @Override + //对选择菜单的准备 public boolean onPrepareOptionsMenu(Menu menu) { if (isFinishing()) { return true; @@ -489,6 +503,7 @@ public class NoteEditActivity extends Activity implements OnClickListener, menu.clear(); if (mWorkingNote.getFolderId() == Notes.ID_CALL_RECORD_FOLDER) { getMenuInflater().inflate(R.menu.call_note_edit, menu); + // MenuInflater是用来实例化Menu目录下的Menu布局文件的 } else { getMenuInflater().inflate(R.menu.note_edit, menu); } @@ -506,45 +521,71 @@ public class NoteEditActivity extends Activity implements OnClickListener, } @Override + /* + * 函数功能：动态改变菜单选项内容 + * 函数实现：如下注释 + */ public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { + //根据菜单的id来编剧相关项目 case R.id.menu_new_note: + //创建一个新的便签 createNewNote(); break; case R.id.menu_delete: + //删除便签 AlertDialog.Builder builder = new AlertDialog.Builder(this); + //创建关于删除操作的对话框 builder.setTitle(getString(R.string.alert_title_delete)); + // 设置标签的标题为alert_title_delete builder.setIcon(android.R.drawable.ic_dialog_alert); + //设置对话框图标 builder.setMessage(getString(R.string.alert_message_delete_note)); + //设置对话框内容 builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() { + //建立按键监听器 public void onClick(DialogInterface dialog, int which) { + //点击所触发事件 deleteCurrentNote(); + // 删除单签便签 finish(); } }); + //添加“YES”按钮 builder.setNegativeButton(android.R.string.cancel, null); + //添加“NO”的按钮 builder.show(); + //显示对话框 break; case R.id.menu_font_size: + //字体大小的编辑 mFontSizeSelector.setVisibility(View.VISIBLE); + // 将字体选择器置为可见 findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.VISIBLE); + // 通过id找到相应的大小 break; case R.id.menu_list_mode: + //选择列表模式 mWorkingNote.setCheckListMode(mWorkingNote.getCheckListMode() == 0 ? TextNote.MODE_CHECK_LIST : 0); break; case R.id.menu_share: + //菜单共享 getWorkingText(); sendTo(this, mWorkingNote.getContent()); + // 用sendto函数将运行文本发送到遍历的本文内 break; case R.id.menu_send_to_desktop: + //发送到桌面 sendToDesktop(); break; case R.id.menu_alert: + //创建提醒器 setReminder(); break; case R.id.menu_delete_remind: + //删除日期提醒 mWorkingNote.setAlertDate(0, false); break; default: @@ -553,111 +594,170 @@ public class NoteEditActivity extends Activity implements OnClickListener, return true; } + /* + * 函数功能：建立事件提醒器 + * 函数实现：如下注释 + */ private void setReminder() { DateTimePickerDialog d = new DateTimePickerDialog(this, System.currentTimeMillis()); + // 建立修改时间日期的对话框 d.setOnDateTimeSetListener(new OnDateTimeSetListener() { public void OnDateTimeSet(AlertDialog dialog, long date) { mWorkingNote.setAlertDate(date , true); + //选择提醒的日期 } }); + //建立时间日期的监听器 d.show(); + //显示对话框 } /** * Share note to apps that support {@link Intent#ACTION_SEND} action * and {@text/plain} type */ + /* + * 函数功能：共享便签 + * 函数实现：如下注释 + */ private void sendTo(Context context, String info) { Intent intent = new Intent(Intent.ACTION_SEND); + //建立intent链接选项 intent.putExtra(Intent.EXTRA_TEXT, info); + //将需要传递的便签信息放入text文件中 intent.setType("text/plain"); + //编辑连接器的类型 context.startActivity(intent); + //在acti中进行链接 } + /* + * 函数功能：创建一个新的便签 + * 函数实现：如下注释 + */ private void createNewNote() { // Firstly, save current editing notes + //保存当前便签 saveNote(); // For safety, start a new NoteEditActivity finish(); Intent intent = new Intent(this, NoteEditActivity.class); + //设置链接器 intent.setAction(Intent.ACTION_INSERT_OR_EDIT); + //该活动定义为创建或编辑 intent.putExtra(Notes.INTENT_EXTRA_FOLDER_ID, mWorkingNote.getFolderId()); + //将运行便签的id添加到INTENT_EXTRA_FOLDER_ID标记中 startActivity(intent); + //开始activity并链接 } + /* + * 函数功能：删除当前便签 + * 函数实现：如下注释 + */ private void deleteCurrentNote() { if (mWorkingNote.existInDatabase()) { + //假如当前运行的便签内存有数据 HashSet ids = new HashSet(); long id = mWorkingNote.getNoteId(); if (id != Notes.ID_ROOT_FOLDER) { ids.add(id); + //如果不是头文件夹建立一个hash表把便签id存起来 } else { Log.d(TAG, "Wrong note id, should not happen"); + //否则报错 } if (!isSyncMode()) { + //在非同步模式情况下 + //删除操作 if (!DataUtils.batchDeleteNotes(getContentResolver(), ids)) { Log.e(TAG, "Delete Note error"); } } else { + //同步模式 + //移动至垃圾文件夹的操作 if (!DataUtils.batchMoveToFolder(getContentResolver(), ids, Notes.ID_TRASH_FOLER)) { Log.e(TAG, "Move notes to trash folder error, should not happens"); } } } mWorkingNote.markDeleted(true); + //将这些标签的删除标记置为true } + /* + * 函数功能：判断是否为同步模式 + * 函数实现：直接看NotesPreferenceActivity中同步名称是否为空 + */ private boolean isSyncMode() { return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0; } + /* + * 函数功能：设置提醒时间 + * 函数实现：如下注释 + */ 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()) { + //首先保存已有的便签 saveNote(); } if (mWorkingNote.getNoteId() > 0) { Intent intent = new Intent(this, AlarmReceiver.class); intent.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mWorkingNote.getNoteId())); + //若有有运行的便签就是建立一个链接器将标签id都存在uri中 PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0); AlarmManager alarmManager = ((AlarmManager) getSystemService(ALARM_SERVICE)); + //设置提醒管理器 showAlertHeader(); if(!set) { alarmManager.cancel(pendingIntent); } else { alarmManager.set(AlarmManager.RTC_WAKEUP, date, pendingIntent); } + //如果用户设置了时间，就通过提醒管理器设置一个监听事项 } 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 */ + //没有运行的便签就报错 Log.e(TAG, "Clock alert setting error"); showToast(R.string.error_note_empty_for_clock); } } + /* + * 函数功能：Widget发生改变的所触发的事件 + */ public void onWidgetChanged() { - updateWidget(); + updateWidget();//更新Widget } + /* + * 函数功能： 删除编辑文本框所触发的事件 + * 函数实现：如下注释 + */ public void onEditTextDelete(int index, String text) { int childCount = mEditTextList.getChildCount(); if (childCount == 1) { return; } - + //没有编辑框的话直接返回 for (int i = index + 1; i < childCount; i++) { ((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text)) .setIndex(i - 1); + //通过id把编辑框存在便签编辑框中 } mEditTextList.removeViewAt(index); + //删除特定位置的视图 NoteEditText edit = null; if(index == 0) { edit = (NoteEditText) mEditTextList.getChildAt(0).findViewById( @@ -666,69 +766,101 @@ public class NoteEditActivity extends Activity implements OnClickListener, edit = (NoteEditText) mEditTextList.getChildAt(index - 1).findViewById( R.id.et_edit_text); } + //通过id把编辑框存在空的NoteEditText中 int length = edit.length(); edit.append(text); - edit.requestFocus(); - edit.setSelection(length); + edit.requestFocus();//请求优先完成该此 编辑 + edit.setSelection(length);//定位到length位置处的条目 } + /* + * 函数功能：进入编辑文本框所触发的事件 + * 函数实现：如下注释 + */ 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"); + //越界把偶偶 } View view = getListItem(text, index); mEditTextList.addView(view, index); + //建立一个新的视图并添加到编辑文本框内 NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text); - edit.requestFocus(); - edit.setSelection(0); + edit.requestFocus();//请求优先操作 + edit.setSelection(0);//定位到起始位置 for (int i = index + 1; i < mEditTextList.getChildCount(); i++) { ((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text)) .setIndex(i); + //遍历子文本框并设置对应对下标 } } + /* + * 函数功能：切换至列表模式 + * 函数实现：如下注释 + */ private void switchToListMode(String text) { mEditTextList.removeAllViews(); String[] items = text.split("\n"); int index = 0; + //清空所有视图，初始化下标 for (String item : items) { if(!TextUtils.isEmpty(item)) { mEditTextList.addView(getListItem(item, index)); index++; + //遍历所有文本单元并添加到文本框中 } } mEditTextList.addView(getListItem("", index)); mEditTextList.getChildAt(index).findViewById(R.id.et_edit_text).requestFocus(); + //优先请求此操作 mNoteEditor.setVisibility(View.GONE); + //便签编辑器不可见 mEditTextList.setVisibility(View.VISIBLE); + //将文本编辑框置为可见 } + /* + * 函数功能：获取高亮效果的反馈情况 + * 函数实现：如下注释 + */ private Spannable getHighlightQueryResult(String fullText, String userQuery) { SpannableString spannable = new SpannableString(fullText == null ? "" : fullText); + //新建一个效果选项 if (!TextUtils.isEmpty(userQuery)) { mPattern = Pattern.compile(userQuery); + //将用户的询问进行解析 Matcher m = mPattern.matcher(fullText); + //建立一个状态机检查Pattern并进行匹配 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); + //设置背景颜色 start = m.end(); + //跟新起始位置 } } return spannable; } + /* + * 函数功能：获取列表项 + * 函数实现：如下注释 + */ private View getListItem(String item, int index) { View view = LayoutInflater.from(this).inflate(R.layout.note_edit_list_item, null); + //创建一个视图 final NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text); edit.setTextAppearance(this, TextAppearanceResources.getTexAppearanceResource(mFontSizeId)); + //创建一个文本编辑框并设置可见性 CheckBox cb = ((CheckBox) view.findViewById(R.id.cb_edit_item)); cb.setOnCheckedChangeListener(new OnCheckedChangeListener() { public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { @@ -739,12 +871,15 @@ public class NoteEditActivity extends Activity implements OnClickListener, } } }); + //建立一个打钩框并设置监听器 if (item.startsWith(TAG_CHECKED)) { + //选择勾选 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)) { + //选择不勾选 cb.setChecked(false); edit.setPaintFlags(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG); item = item.substring(TAG_UNCHECKED.length(), item.length()).trim(); @@ -753,61 +888,94 @@ public class NoteEditActivity extends Activity implements OnClickListener, edit.setOnTextViewChangeListener(this); edit.setIndex(index); edit.setText(getHighlightQueryResult(item, mUserQuery)); + //运行编辑框的监听器对该行为作出反应，并设置下标及文本内容 return view; } + /* + * 函数功能：便签内容发生改变所 触发的事件 + * 函数实现：如下注释 + */ public void onTextChange(int index, boolean hasText) { if (index >= mEditTextList.getChildCount()) { Log.e(TAG, "Wrong index, should not happen"); return; + //越界报错 } 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); } + //如果内容不为空则将其子编辑框可见性置为可见，否则不可见 } + /* + * 函数功能：检查模式和列表模式的切换 + * 函数实现：如下注释 + */ public void onCheckListModeChanged(int oldMode, int newMode) { if (newMode == TextNote.MODE_CHECK_LIST) { switchToListMode(mNoteEditor.getText().toString()); + //检查模式切换到列表模式 } else { if (!getWorkingText()) { mWorkingNote.setWorkingText(mWorkingNote.getContent().replace(TAG_UNCHECKED + " ", "")); } + //若是获取到文本就改变其检查标记 mNoteEditor.setText(getHighlightQueryResult(mWorkingNote.getContent(), mUserQuery)); mEditTextList.setVisibility(View.GONE); mNoteEditor.setVisibility(View.VISIBLE); + //修改文本编辑器的内容和可见性 } } + /* + * 函数功能：设置勾选选项表并返回是否勾选的标记 + * 函数实现：如下注释 + */ private boolean getWorkingText() { boolean hasChecked = false; + //初始化check标记 if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) { + // 若模式为CHECK_LIST StringBuilder sb = new StringBuilder(); + //创建可变字符串 for (int i = 0; i < mEditTextList.getChildCount(); i++) { View view = mEditTextList.getChildAt(i); + //遍历所有子编辑框的视图 NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text); if (!TextUtils.isEmpty(edit.getText())) { + //若文本不为空 if (((CheckBox) view.findViewById(R.id.cb_edit_item)).isChecked()) { + //该选项框已打钩 sb.append(TAG_CHECKED).append(" ").append(edit.getText()).append("\n"); hasChecked = true; + //扩展字符串为已打钩并把标记置true } else { sb.append(TAG_UNCHECKED).append(" ").append(edit.getText()).append("\n"); + //扩展字符串添加未打钩 } } } mWorkingNote.setWorkingText(sb.toString()); + //利用编辑好的字符串设置运行便签的内容 } else { mWorkingNote.setWorkingText(mNoteEditor.getText().toString()); + // 若不是该模式直接用编辑器中的内容设置运行中标签的内容 } return hasChecked; } + /* + * 函数功能：保存便签 + * 函数实现：如下注释 + */ private boolean saveNote() { getWorkingText(); boolean saved = mWorkingNote.saveNote(); + //运行 getWorkingText()之后保存 if (saved) { /** * There are two modes from List view to edit view, open one note, @@ -816,11 +984,16 @@ public class NoteEditActivity extends Activity implements OnClickListener, * new node requires to the top of the list. This code * {@link #RESULT_OK} is used to identify the create/edit state */ + //如英文注释所说链接RESULT_OK是为了识别保存的2种情况，一是创建后保存，二是修改后保存 setResult(RESULT_OK); } return saved; } + /* + * 函数功能：将便签发送至桌面 + * 函数实现：如下注释 + */ private void sendToDesktop() { /** * Before send message to home, we should make sure that current @@ -829,12 +1002,16 @@ public class NoteEditActivity extends Activity implements OnClickListener, */ if (!mWorkingNote.existInDatabase()) { saveNote(); + //若不存在数据也就是新的标签就保存起来先 } if (mWorkingNote.getNoteId() > 0) { + //若是有内容 Intent sender = new Intent(); Intent shortcutIntent = new Intent(this, NoteEditActivity.class); + //建立发送到桌面的连接器 shortcutIntent.setAction(Intent.ACTION_VIEW); + //链接为一个视图 shortcutIntent.putExtra(Intent.EXTRA_UID, mWorkingNote.getNoteId()); sender.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent); sender.putExtra(Intent.EXTRA_SHORTCUT_NAME, @@ -842,9 +1019,12 @@ public class NoteEditActivity extends Activity implements OnClickListener, sender.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, Intent.ShortcutIconResource.fromContext(this, R.drawable.icon_app)); sender.putExtra("duplicate", true); + //将便签的相关信息都添加到要发送的文件里 sender.setAction("com.android.launcher.action.INSTALL_SHORTCUT"); + //设置sneder的行为是发送 showToast(R.string.info_note_enter_desktop); sendBroadcast(sender); + //显示到桌面 } else { /** * There is the condition that user has input nothing (the note is @@ -853,21 +1033,35 @@ public class NoteEditActivity extends Activity implements OnClickListener, */ Log.e(TAG, "Send to desktop error"); showToast(R.string.error_note_empty_for_send_to_desktop); + //空便签直接报错 } } + /* + * 函数功能：编辑小图标的标题 + * 函数实现：如下注释 + */ 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; + //直接设置为content中的内容并返回，有勾选和未勾选2种 } + /* + * 函数功能：显示提示的视图 + * 函数实现：根据下标显示对应的提示 + */ private void showToast(int resId) { showToast(resId, Toast.LENGTH_SHORT); } + /* + * 函数功能：持续显示提示的视图 + * 函数实现：根据下标和持续的时间（duration）编辑提示视图并显示 + */ private void showToast(int resId, int duration) { Toast.makeText(this, resId, duration).show(); } -} +} \ No newline at end of file diff --git a/java/net/micode/notes/ui/NoteEditText.java b/java/net/micode/notes/ui/NoteEditText.java index 2afe2a8..f658bd6 100644 --- a/java/net/micode/notes/ui/NoteEditText.java +++ b/java/net/micode/notes/ui/NoteEditText.java @@ -1,19 +1,3 @@ -/* - * 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; @@ -37,6 +21,7 @@ import net.micode.notes.R; import java.util.HashMap; import java.util.Map; +//继承edittext，设置便签设置文本框 public class NoteEditText extends EditText { private static final String TAG = "NoteEditText"; private int mIndex; @@ -46,6 +31,7 @@ public class NoteEditText extends EditText { private static final String SCHEME_HTTP = "http:" ; private static final String SCHEME_EMAIL = "mailto:" ; + ///建立一个字符和整数的hash表，用于链接电话，网站，还有邮箱 private static final Map sSchemaActionResMap = new HashMap(); static { sSchemaActionResMap.put(SCHEME_TEL, R.string.note_link_tel); @@ -56,17 +42,20 @@ public class NoteEditText extends EditText { /** * Call by the {@link NoteEditActivity} to delete or add edit text */ + //在NoteEditActivity中删除或添加文本的操作，可以看做是一个文本是否被变的标记，英文注释已说明的很清楚 public interface OnTextViewChangeListener { /** * Delete current edit text when {@link KeyEvent#KEYCODE_DEL} happens * and the text is null */ + //处理删除按键时的操作 void onEditTextDelete(int index, String text); /** * Add edit text after current edit text when {@link KeyEvent#KEYCODE_ENTER} * happen */ + //处理进入按键时的操作 void onEditTextEnter(int index, String text); /** @@ -77,33 +66,43 @@ public class NoteEditText extends EditText { private OnTextViewChangeListener mOnTextViewChangeListener; + //根据context设置文本 public NoteEditText(Context context) { - super(context, null); + super(context, null);//用super引用父类变量 mIndex = 0; } + //设置当前光标 public void setIndex(int index) { mIndex = index; } + //初始化文本修改标记 public void setOnTextViewChangeListener(OnTextViewChangeListener listener) { mOnTextViewChangeListener = listener; } - public NoteEditText(Context context, AttributeSet attrs) { + //AttributeSet 百度了一下是自定义空控件属性，用于维护便签动态变化的属性 + //初始化便签 + public NoteEditText(Context context, AttributeSet attrs) { super(context, attrs, android.R.attr.editTextStyle); } + // 根据defstyle自动初始化 public NoteEditText(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); - // TODO Auto-generated constructor stub + // TODO Auto-generated construct or stub } @Override + //view里的函数，处理手机屏幕的所有事件 + /*参数event为手机屏幕触摸事件封装类的对象，其中封装了该事件的所有信息， + 例如触摸的位置、触摸的类型以及触摸的时间等。该对象会在用户触摸手机屏幕时被创建。*/ public boolean onTouchEvent(MotionEvent event) { switch (event.getAction()) { + //重写了需要处理屏幕被按下的事件 case MotionEvent.ACTION_DOWN: - + //跟新当前坐标值 int x = (int) event.getX(); int y = (int) event.getY(); x -= getTotalPaddingLeft(); @@ -111,9 +110,12 @@ public class NoteEditText extends EditText { x += getScrollX(); y += getScrollY(); + //用布局控件layout根据x,y的新值设置新的位置 Layout layout = getLayout(); int line = layout.getLineForVertical(y); int off = layout.getOffsetForHorizontal(line, x); + + //更新光标新的位置 Selection.setSelection(getText(), off); break; } @@ -122,96 +124,147 @@ public class NoteEditText extends EditText { } @Override + /* + * 函数功能：处理用户按下一个键盘按键时会触发 的事件 + * 实现过程：如下注释 + */ public boolean onKeyDown(int keyCode, KeyEvent event) { switch (keyCode) { + //根据按键的 Unicode 编码值来处理 case KeyEvent.KEYCODE_ENTER: + //“进入”按键 if (mOnTextViewChangeListener != null) { return false; } break; case KeyEvent.KEYCODE_DEL: + //“删除”按键 mSelectionStartBeforeDelete = getSelectionStart(); break; default: break; } + //继续执行父类的其他点击事件 return super.onKeyDown(keyCode, event); } @Override + /* + * 函数功能：处理用户松开一个键盘按键时会触发 的事件 + * 实现方式：如下注释 + */ public boolean onKeyUp(int keyCode, KeyEvent event) { switch(keyCode) { + //根据按键的 Unicode 编码值来处理，有删除和进入2种操作 case KeyEvent.KEYCODE_DEL: if (mOnTextViewChangeListener != null) { + //若是被修改过 if (0 == mSelectionStartBeforeDelete && mIndex != 0) { + //若之前有被修改并且文档不为空 mOnTextViewChangeListener.onEditTextDelete(mIndex, getText().toString()); + //利用上文OnTextViewChangeListener对KEYCODE_DEL按键情况的删除函数进行删除 return true; } } else { Log.d(TAG, "OnTextViewChangeListener was not seted"); + //其他情况报错，文档的改动监听器并没有建立 } break; case KeyEvent.KEYCODE_ENTER: + //同上也是分为监听器是否建立2种情况 if (mOnTextViewChangeListener != null) { int selectionStart = getSelectionStart(); + //获取当前位置 String text = getText().subSequence(selectionStart, length()).toString(); + //获取当前文本 setText(getText().subSequence(0, selectionStart)); + //根据获取的文本设置当前文本 mOnTextViewChangeListener.onEditTextEnter(mIndex + 1, text); + //当{@link KeyEvent#KEYCODE_ENTER}添加新文本 } else { Log.d(TAG, "OnTextViewChangeListener was not seted"); + //其他情况报错，文档的改动监听器并没有建立 } break; default: break; } + //继续执行父类的其他按键弹起的事件 return super.onKeyUp(keyCode, event); } @Override + /* + * 函数功能：当焦点发生变化时，会自动调用该方法来处理焦点改变的事件 + * 实现方式：如下注释 + * 参数：focused表示触发该事件的View是否获得了焦点，当该控件获得焦点时，Focused等于true，否则等于false。 + direction表示焦点移动的方向，用数值表示 + Rect：表示在触发事件的View的坐标系中，前一个获得焦点的矩形区域，即表示焦点是从哪里来的。如果不可用则为null + */ protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { if (mOnTextViewChangeListener != null) { + //若监听器已经建立 if (!focused && TextUtils.isEmpty(getText())) { + //获取到焦点并且文本不为空 mOnTextViewChangeListener.onTextChange(mIndex, false); + //mOnTextViewChangeListener子函数，置false隐藏事件选项 } else { mOnTextViewChangeListener.onTextChange(mIndex, true); + //mOnTextViewChangeListener子函数，置true显示事件选项 } } + //继续执行父类的其他焦点变化的事件 super.onFocusChanged(focused, direction, previouslyFocusedRect); } @Override + /* + * 函数功能：生成上下文菜单 + * 函数实现：如下注释 + */ protected void onCreateContextMenu(ContextMenu menu) { if (getText() instanceof Spanned) { + //有文本存在 int selStart = getSelectionStart(); int selEnd = getSelectionEnd(); + //获取文本开始和结尾位置 int min = Math.min(selStart, selEnd); int max = Math.max(selStart, selEnd); + //获取开始到结尾的最大值和最小值 final URLSpan[] urls = ((Spanned) getText()).getSpans(min, max, URLSpan.class); + //设置url的信息的范围值 if (urls.length == 1) { int defaultResId = 0; for(String schema: sSchemaActionResMap.keySet()) { + //获取计划表中所有的key值 if(urls[0].getURL().indexOf(schema) >= 0) { + //若url可以添加则在添加后将defaultResId置为key所映射的值 defaultResId = sSchemaActionResMap.get(schema); break; } } if (defaultResId == 0) { + //defaultResId == 0则说明url并没有添加任何东西，所以置为连接其他SchemaActionResMap的值 defaultResId = R.string.note_link_other; } + //建立菜单 menu.add(0, 0, 0, defaultResId).setOnMenuItemClickListener( new OnMenuItemClickListener() { + //新建按键监听器 public boolean onMenuItemClick(MenuItem item) { // goto a new intent urls[0].onClick(NoteEditText.this); + //根据相应的文本设置菜单的按键 return true; } }); } } + //继续执行父类的其他菜单创建的事件 super.onCreateContextMenu(menu); } -} +} \ No newline at end of file diff --git a/java/net/micode/notes/ui/NoteItemData.java b/java/net/micode/notes/ui/NoteItemData.java index 0f5a878..4acfd7c 100644 --- a/java/net/micode/notes/ui/NoteItemData.java +++ b/java/net/micode/notes/ui/NoteItemData.java @@ -28,18 +28,18 @@ 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, + 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; diff --git a/java/net/micode/notes/ui/NotesListActivity.java b/java/net/micode/notes/ui/NotesListActivity.java index e843aec..125c058 100644 --- a/java/net/micode/notes/ui/NotesListActivity.java +++ b/java/net/micode/notes/ui/NotesListActivity.java @@ -1,21 +1,6 @@ -/* - * 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.Manifest; import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; @@ -27,6 +12,7 @@ import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.SharedPreferences; +import android.content.pm.PackageManager; import android.database.Cursor; import android.os.AsyncTask; import android.os.Bundle; @@ -60,6 +46,9 @@ import android.widget.PopupMenu; import android.widget.TextView; import android.widget.Toast; +import androidx.core.app.ActivityCompat; +import androidx.core.content.ContextCompat; + import net.micode.notes.R; import net.micode.notes.data.Notes; import net.micode.notes.data.Notes.NoteColumns; @@ -78,141 +67,207 @@ import java.io.InputStream; import java.io.InputStreamReader; import java.util.HashSet; +/** + * 便签列表主活动 + * 负责展示便签列表、处理便签的增删改查操作 + * 管理文件夹结构和私密模式功能 + */ 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 FOLDER_NOTE_LIST_QUERY_TOKEN = 0; // 便签列表查询令牌 + public static int secret_mode = 0; // 私密模式标志(0:正常模式,1:私密模式) + private static final int FOLDER_LIST_QUERY_TOKEN = 1; // 文件夹列表查询令牌 - private static final int MENU_FOLDER_VIEW = 1; + private static final int MENU_FOLDER_DELETE = 0; // 文件夹删除菜单项ID + private static final int MENU_FOLDER_VIEW = 1; // 文件夹查看菜单项ID + private static final int MENU_FOLDER_CHANGE_NAME = 2; // 文件夹重命名菜单项ID - private static final int MENU_FOLDER_CHANGE_NAME = 2; - - private static final String PREFERENCE_ADD_INTRODUCTION = "net.micode.notes.introduction"; + private static final String PREFERENCE_ADD_INTRODUCTION = "net.micode.notes.introduction"; // 首次添加介绍便签的偏好设置键 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; + NOTE_LIST, SUB_FOLDER, CALL_RECORD_FOLDER // 列表编辑状态枚举 + } + private ListEditState mState; // 当前列表编辑状态 + private BackgroundQueryHandler mBackgroundQueryHandler; // 后台查询处理器 + private NotesListAdapter mNotesListAdapter; // 便签列表适配器 + private ListView mNotesListView; // 便签列表视图 + private Button mAddNewNote; // 添加新便签按钮 + private boolean mDispatch; // 触摸事件分发标志 + private int mOriginY; // 触摸事件原始Y坐标 + private int mDispatchY; // 触摸事件分发Y坐标 + private TextView mTitleBar; // 标题栏文本 + private long mCurrentFolderId; // 当前文件夹ID + private ContentResolver mContentResolver; // 内容解析器 + private ModeCallback mModeCallBack; // 多选模式回调 + private static final String TAG = "NotesListActivity"; // 日志标签 + public static final int NOTES_LISTVIEW_SCROLL_RATE = 30; // 列表视图滚动速率 + + // 初始化时设为null，使用前进行null检查 + private NoteItemData mFocusNoteDataItem = null; // 聚焦的便签数据项 + + // 数据库查询条件 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; + private final static int REQUEST_CODE_OPEN_NODE = 102; // 打开便签请求码 + private final static int REQUEST_CODE_NEW_NODE = 103; // 新建便签请求码 + private final static int PERMISSION_REQUEST_STORAGE = 100; // 存储权限请求码 + + // 声明异步任务，以便在Activity销毁时取消 + private AsyncTask mCurrentAsyncTask; // 当前执行的异步任务 + /** + * Activity创建时调用 + * 初始化UI、检查权限、设置应用信息 + */ @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(); + try { + super.onCreate(savedInstanceState); + setContentView(R.layout.note_list); + initResources(); // 初始化资源和UI组件 + checkPermissions(); // 检查存储权限 + setAppInfoFromRawRes(); // 从原始资源设置应用信息 + } catch (Exception e) { + Log.e(TAG, "onCreate error: " + e.getMessage(), e); + Toast.makeText(this, "应用启动失败: " + e.getMessage(), Toast.LENGTH_LONG).show(); + } } + /** + * Activity结果回调 + * 处理子Activity返回的结果 + */ @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); + try { + if (resultCode == RESULT_OK + && (requestCode == REQUEST_CODE_OPEN_NODE || requestCode == REQUEST_CODE_NEW_NODE)) { + if (mNotesListAdapter != null) { + mNotesListAdapter.changeCursor(null); // 刷新便签列表 + } + } else { + super.onActivityResult(requestCode, resultCode, data); + } + } catch (Exception e) { + Log.e(TAG, "onActivityResult error: " + e.getMessage(), e); + } + } + + /** + * 检查存储权限 + * 如需权限则请求用户授权 + */ + private void checkPermissions() { + if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) + != PackageManager.PERMISSION_GRANTED) { + ActivityCompat.requestPermissions(this, + new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, + PERMISSION_REQUEST_STORAGE); } } + /** + * 权限请求结果回调 + * 处理用户对权限请求的响应 + */ + @Override + public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) { + super.onRequestPermissionsResult(requestCode, permissions, grantResults); + if (requestCode == PERMISSION_REQUEST_STORAGE) { + if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { + Toast.makeText(this, "存储权限已获取", Toast.LENGTH_SHORT).show(); + } else { + Toast.makeText(this, "需要存储权限才能使用导出功能", Toast.LENGTH_SHORT).show(); + } + } + } + + /** + * 从原始资源设置应用信息 + * 首次启动时创建介绍便签 + */ 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); + // 读取介绍文件内容 + 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; + char[] buf = new char[1024]; + int len; while ((len = br.read(buf)) > 0) { sb.append(buf, 0, len); } } else { - Log.e(TAG, "Read introduction file error"); + Log.e(TAG, "Read introduction file error: in is null"); return; } } catch (IOException e) { - e.printStackTrace(); + Log.e(TAG, "Read introduction file error", e); return; } finally { - if(in != null) { + if (in != null) { try { in.close(); } catch (IOException e) { - // TODO Auto-generated catch block - e.printStackTrace(); + Log.e(TAG, "Close introduction file error", e); } } } - 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; + try { + // 创建介绍便签并保存 + WorkingNote note = WorkingNote.createEmptyNote(this, Notes.ID_ROOT_FOLDER, + AppWidgetManager.INVALID_APPWIDGET_ID, Notes.TYPE_WIDGET_INVALIDE, + ResourceParser.RED); + if (note != null) { + note.setWorkingText(sb.toString()); + if (note.saveNote()) { + sp.edit().putBoolean(PREFERENCE_ADD_INTRODUCTION, true).commit(); + } else { + Log.e(TAG, "Save introduction note error: saveNote failed"); + } + } else { + Log.e(TAG, "Save introduction note error: note is null"); + } + } catch (Exception e) { + Log.e(TAG, "Save introduction note error", e); } } } + /** + * Activity开始时调用 + * 启动异步便签列表查询 + */ @Override protected void onStart() { - super.onStart(); - startAsyncNotesListQuery(); + try { + super.onStart(); + startAsyncNotesListQuery(); // 异步查询便签列表 + } catch (Exception e) { + Log.e(TAG, "onStart error: " + e.getMessage(), e); + } } + /** + * 初始化资源和UI组件 + * 绑定视图、设置适配器和事件监听 + */ private void initResources() { - mContentResolver = this.getContentResolver(); + mContentResolver = this.getContentResolver(); // 获取内容解析器，用于数据操作 mBackgroundQueryHandler = new BackgroundQueryHandler(this.getContentResolver()); - mCurrentFolderId = Notes.ID_ROOT_FOLDER; + mCurrentFolderId = Notes.ID_ROOT_FOLDER; // 默认显示根文件夹 + + // 绑定UI组件 mNotesListView = (ListView) findViewById(R.id.notes_list); mNotesListView.addFooterView(LayoutInflater.from(this).inflate(R.layout.note_list_footer, null), null, false); @@ -220,735 +275,1175 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt 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(); + mState = ListEditState.NOTE_LIST; // 初始状态为便签列表 + mModeCallBack = new ModeCallback(); // 初始化多选模式回调 } + /** + * 多选模式回调类 + * 处理ListView的多选模式相关事件 + */ private class ModeCallback implements ListView.MultiChoiceModeListener, OnMenuItemClickListener { - private DropdownMenu mDropDownMenu; - private ActionMode mActionMode; - private MenuItem mMoveMenu; + private DropdownMenu mDropDownMenu; // 下拉菜单 + private ActionMode mActionMode; // 操作模式 + private MenuItem mMoveMenu; // 移动菜单项 + /** + * 创建操作模式时调用 + * 初始化操作模式菜单 + */ 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; + try { + getMenuInflater().inflate(R.menu.note_list_options, menu); + menu.findItem(R.id.delete).setOnMenuItemClickListener(this); + mMoveMenu = menu.findItem(R.id.move); + + // 根据当前聚焦的便签数据项设置菜单项可见性 + if (mFocusNoteDataItem != null) { + if (mFocusNoteDataItem.getParentId() == Notes.ID_CALL_RECORD_FOLDER + || DataUtils.getUserFolderCount(mContentResolver) == 0) { + mMoveMenu.setVisible(false); + } else { + mMoveMenu.setVisible(true); + mMoveMenu.setOnMenuItemClickListener(this); + } } - }); - return true; + mActionMode = mode; + if (mNotesListAdapter != null) { + mNotesListAdapter.setChoiceMode(true); // 设置列表为多选模式 + } + if (mNotesListView != null) { + mNotesListView.setLongClickable(false); // 禁用长按 + } + if (mAddNewNote != null) { + mAddNewNote.setVisibility(View.GONE); // 隐藏添加按钮 + } + + // 设置操作模式的自定义视图 + 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) { + if (mNotesListAdapter != null) { + mNotesListAdapter.selectAll(!mNotesListAdapter.isAllSelected()); + updateMenu(); // 更新菜单状态 + } + return true; + } + }); + return true; + } catch (Exception e) { + Log.e(TAG, "onCreateActionMode error: " + e.getMessage(), e); + return false; + } } + /** + * 更新菜单状态 + * 显示当前选中的项目数量 + */ 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); + try { + if (mNotesListAdapter != null) { + int selectedCount = mNotesListAdapter.getSelectedCount(); + String format = getResources().getString(R.string.menu_select_title, selectedCount); + if (mDropDownMenu != null) { + 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); + } + } + } } + } catch (Exception e) { + Log.e(TAG, "updateMenu error: " + e.getMessage(), e); } } + // 以下方法为ListView.MultiChoiceModeListener接口实现，此处为简化注释省略详细说明 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); + try { + if (mNotesListAdapter != null) { + mNotesListAdapter.setChoiceMode(false); // 取消多选模式 + } + if (mNotesListView != null) { + mNotesListView.setLongClickable(true); // 启用长按 + } + if (mAddNewNote != null) { + mAddNewNote.setVisibility(View.VISIBLE); // 显示添加按钮 + } + } catch (Exception e) { + Log.e(TAG, "onDestroyActionMode error: " + e.getMessage(), e); + } } public void finishActionMode() { - mActionMode.finish(); + if (mActionMode != null) { + mActionMode.finish(); + } } - public void onItemCheckedStateChanged(ActionMode mode, int position, long id, - boolean checked) { - mNotesListAdapter.setCheckedItem(position, checked); - updateMenu(); + public void onItemCheckedStateChanged(ActionMode mode, int position, long id, boolean checked) { + try { + if (mNotesListAdapter != null) { + mNotesListAdapter.setCheckedItem(position, checked); + updateMenu(); // 更新菜单状态 + } + } catch (Exception e) { + Log.e(TAG, "onItemCheckedStateChanged error: " + e.getMessage(), e); + } } + /** + * 菜单项点击回调 + * 处理删除和移动操作 + */ public boolean onMenuItemClick(MenuItem item) { - if (mNotesListAdapter.getSelectedCount() == 0) { - Toast.makeText(NotesListActivity.this, getString(R.string.menu_select_none), - Toast.LENGTH_SHORT).show(); + try { + if (mNotesListAdapter != null && 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: + showDeleteDialog(); // 显示删除确认对话框 + break; + case R.id.move: + startQueryDestinationFolders(); // 开始查询目标文件夹 + break; + default: + return false; + } return true; + } catch (Exception e) { + Log.e(TAG, "onMenuItemClick error: " + e.getMessage(), e); + return false; } + } - 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; + /** + * 显示删除确认对话框 + */ + private void showDeleteDialog() { + 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(); // 批量删除选中的便签 + } + }); + builder.setNegativeButton(android.R.string.cancel, null); + builder.show(); } } + /** + * 新建便签按钮触摸事件监听器 + * 处理按钮的触摸滑动事件 + */ 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(); + try { + switch (event.getAction()) { + case MotionEvent.ACTION_DOWN: { + // 处理触摸按下事件，计算事件坐标 + Display display = getWindowManager().getDefaultDisplay(); + int screenHeight = display.getHeight(); + int newNoteViewHeight = mAddNewNote.getHeight(); + int start = screenHeight - newNoteViewHeight; + int eventY = start + (int) event.getY(); + + if (mState == ListEditState.SUB_FOLDER && mTitleBar != null) { + eventY -= mTitleBar.getHeight(); + start -= mTitleBar.getHeight(); + } + + // 分发触摸事件到ListView + if (event.getY() < (event.getX() * (-0.12) + 94)) { + if (mNotesListView != null) { + 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; } - /** - * 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; + case MotionEvent.ACTION_MOVE: { + // 处理触摸移动事件，更新分发坐标 + if (mDispatch) { + mDispatchY += (int) event.getY() - mOriginY; event.setLocation(event.getX(), mDispatchY); - mDispatch = true; - return mNotesListView.dispatchTouchEvent(event); + if (mNotesListView != null) { + return mNotesListView.dispatchTouchEvent(event); + } } + break; } - 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); + default: { + // 处理触摸事件结束，重置分发状态 + if (mDispatch) { + event.setLocation(event.getX(), mDispatchY); + mDispatch = false; + if (mNotesListView != null) { + return mNotesListView.dispatchTouchEvent(event); + } + } + break; } - break; } + } catch (Exception e) { + Log.e(TAG, "NewNoteOnTouchListener error: " + e.getMessage(), e); } return false; } + } - }; - + /** + * 启动异步便签列表查询 + * 根据当前文件夹ID和私密模式状态执行查询 + */ 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"); + try { + String selection = (mCurrentFolderId == Notes.ID_ROOT_FOLDER) ? ROOT_FOLDER_SELECTION + : NORMAL_SELECTION; + if (secret_mode == 0) { + // 正常模式下的查询 + 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"); + } else { + // 私密模式下的查询，包含额外字段 + String str1 = "123"; + 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, + str1, + NoteColumns.TYPE, + NoteColumns.WIDGET_ID, + NoteColumns.WIDGET_TYPE, + }; + mBackgroundQueryHandler.startQuery(FOLDER_NOTE_LIST_QUERY_TOKEN, null, + Notes.CONTENT_NOTE_URI, PROJECTION, selection, new String[]{ + String.valueOf(mCurrentFolderId) + }, NoteColumns.TYPE + " DESC," + NoteColumns.MODIFIED_DATE + " DESC"); + } + } catch (Exception e) { + Log.e(TAG, "startAsyncNotesListQuery error: " + e.getMessage(), e); + } } + /** + * 后台查询处理器 + * 处理异步查询结果 + */ private final class BackgroundQueryHandler extends AsyncQueryHandler { public BackgroundQueryHandler(ContentResolver contentResolver) { super(contentResolver); } + /** + * 查询完成时回调 + * 根据查询令牌处理不同的查询结果 + */ @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; + try { + switch (token) { + case FOLDER_NOTE_LIST_QUERY_TOKEN: + if (mNotesListAdapter != null) { + mNotesListAdapter.changeCursor(cursor); // 更新便签列表适配器 + } + break; + case FOLDER_LIST_QUERY_TOKEN: + if (cursor != null && cursor.getCount() > 0) { + showFolderListMenu(cursor); // 显示文件夹列表菜单 + } else { + Log.e(TAG, "Query folder failed"); + } + break; + default: + break; + } + } catch (Exception e) { + Log.e(TAG, "onQueryComplete error: " + e.getMessage(), e); + if (cursor != null) { + cursor.close(); + } } } } + /** + * 显示文件夹列表菜单 + * 用于选择移动便签的目标文件夹 + */ 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(); + try { + 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) { + if (mContentResolver != null && mNotesListAdapter != null) { + // 批量移动便签到目标文件夹 + 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(); // 结束操作模式 + } + } + }); + builder.show(); + } catch (Exception e) { + Log.e(TAG, "showFolderListMenu error: " + e.getMessage(), e); + if (cursor != null) { + cursor.close(); } - }); - builder.show(); + } } + /** + * 创建新便签 + * 启动便签编辑活动 + */ 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); + try { + 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); + } catch (Exception e) { + Log.e(TAG, "createNewNote error: " + e.getMessage(), e); + } } + /** + * 批量删除便签 + * 在异步任务中执行删除操作 + */ private void batchDelete() { - new AsyncTask>() { - protected HashSet doInBackground(Void... unused) { - HashSet widgets = mNotesListAdapter.getSelectedWidget(); - if (!isSyncMode()) { - // if not synced, delete notes directly - if (DataUtils.batchDeleteNotes(mContentResolver, mNotesListAdapter - .getSelectedItemIds())) { - } else { - Log.e(TAG, "Delete notes error, should not happens"); + try { + mCurrentAsyncTask = new AsyncTask>() { + protected HashSet doInBackground(Void... unused) { + HashSet widgets = null; + if (mNotesListAdapter != null) { + widgets = mNotesListAdapter.getSelectedWidget(); } - } 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"); + if (mContentResolver != null && mNotesListAdapter != null) { + // 根据同步模式决定是删除还是移动到回收站 + if (!isSyncMode()) { + DataUtils.batchDeleteNotes(mContentResolver, mNotesListAdapter + .getSelectedItemIds()); + } else { + DataUtils.batchMoveToFolder(mContentResolver, mNotesListAdapter + .getSelectedItemIds(), Notes.ID_TRASH_FOLER); + } } + return widgets; } - 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); + @Override + protected void onPostExecute(HashSet widgets) { + if (widgets != null) { + // 更新相关的桌面小部件 + for (AppWidgetAttribute widget : widgets) { + if (widget.widgetId != AppWidgetManager.INVALID_APPWIDGET_ID + && widget.widgetType != Notes.TYPE_WIDGET_INVALIDE) { + updateWidget(widget.widgetId, widget.widgetType); + } } } + if (mModeCallBack != null) { + mModeCallBack.finishActionMode(); // 结束操作模式 + } } - mModeCallBack.finishActionMode(); - } - }.execute(); + }.execute(); + } catch (Exception e) { + Log.e(TAG, "batchDelete error: " + e.getMessage(), e); + } } + /** + * 删除文件夹 + * 删除文件夹及其包含的便签 + */ private void deleteFolder(long folderId) { - if (folderId == Notes.ID_ROOT_FOLDER) { - Log.e(TAG, "Wrong folder id, should not happen " + folderId); - return; - } + try { + 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); + HashSet ids = new HashSet(); + ids.add(folderId); + HashSet widgets = null; + if (mContentResolver != null) { + widgets = DataUtils.getFolderNoteWidget(mContentResolver, folderId); + } + + if (mContentResolver != null) { + // 根据同步模式决定是删除还是移动到回收站 + if (!isSyncMode()) { + DataUtils.batchDeleteNotes(mContentResolver, ids); + } else { + DataUtils.batchMoveToFolder(mContentResolver, ids, Notes.ID_TRASH_FOLER); } } + + if (widgets != null) { + // 更新相关的桌面小部件 + for (AppWidgetAttribute widget : widgets) { + if (widget.widgetId != AppWidgetManager.INVALID_APPWIDGET_ID + && widget.widgetType != Notes.TYPE_WIDGET_INVALIDE) { + updateWidget(widget.widgetId, widget.widgetType); + } + } + } + } catch (Exception e) { + Log.e(TAG, "deleteFolder error: " + e.getMessage(), e); } } + /** + * 打开便签 + * 启动便签编辑活动查看便签详情 + */ 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); + try { + if (data != null) { + 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); + } + } catch (Exception e) { + Log.e(TAG, "openNode error: " + e.getMessage(), e); + } } + /** + * 打开文件夹 + * 显示文件夹内的便签列表 + */ 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()); + try { + if (data != null) { + mCurrentFolderId = data.getId(); + startAsyncNotesListQuery(); // 查询当前文件夹的便签列表 + + // 根据文件夹类型更新界面状态 + if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) { + mState = ListEditState.CALL_RECORD_FOLDER; + if (mAddNewNote != null) { + mAddNewNote.setVisibility(View.GONE); + } + } else { + mState = ListEditState.SUB_FOLDER; + } + if (mTitleBar != null) { + 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); + } + } + } catch (Exception e) { + Log.e(TAG, "openFolder error: " + e.getMessage(), e); } - mTitleBar.setVisibility(View.VISIBLE); } + /** + * 视图点击回调 + * 处理添加新便签按钮的点击事件 + */ public void onClick(View v) { - switch (v.getId()) { - case R.id.btn_new_note: - createNewNote(); - break; - default: - break; + try { + switch (v.getId()) { + case R.id.btn_new_note: + createNewNote(); // 创建新便签 + break; + default: + break; + } + } catch (Exception e) { + Log.e(TAG, "onClick error: " + e.getMessage(), e); } } + /** + * 显示软键盘 + */ private void showSoftInput() { - InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); - if (inputMethodManager != null) { - inputMethodManager.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0); + try { + InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); + if (inputMethodManager != null) { + inputMethodManager.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0); + } + } catch (Exception e) { + Log.e(TAG, "showSoftInput error: " + e.getMessage(), e); } } + /** + * 隐藏软键盘 + */ private void hideSoftInput(View view) { - InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); - inputMethodManager.hideSoftInputFromWindow(view.getWindowToken(), 0); + try { + InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); + if (inputMethodManager != null && view != null) { + inputMethodManager.hideSoftInputFromWindow(view.getWindowToken(), 0); + } + } catch (Exception e) { + Log.e(TAG, "hideSoftInput error: " + e.getMessage(), e); + } } + /** + * 显示创建或修改文件夹对话框 + * @param create 是否为创建新文件夹 + */ 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)); + try { + 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(); // 显示软键盘 + + // 根据操作类型设置对话框标题和初始文本 + 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 { - Log.e(TAG, "The long click data item is null"); - return; + etName.setText(""); + builder.setTitle(this.getString(R.string.menu_create_folder)); } - } 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; + 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); // 隐藏软键盘 } - if (!create) { - if (!TextUtils.isEmpty(name)) { + }); + + 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); // 隐藏软键盘 + String name = etName.getText().toString(); + // 检查文件夹名称是否已存在 + if (mContentResolver != null && DataUtils.checkVisibleFolderName(mContentResolver, name)) { + Toast.makeText(NotesListActivity.this, getString(R.string.folder_exist, name), + Toast.LENGTH_LONG).show(); + etName.setSelection(0, etName.length()); + return; + } + // 根据操作类型执行创建或修改文件夹 + if (!create && mFocusNoteDataItem != null) { + 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); - values.put(NoteColumns.LOCAL_MODIFIED, 1); - mContentResolver.update(Notes.CONTENT_NOTE_URI, values, NoteColumns.ID - + "=?", new String[] { - String.valueOf(mFocusNoteDataItem.getId()) - }); + if (mContentResolver != null) { + mContentResolver.insert(Notes.CONTENT_NOTE_URI, values); + } } - } 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(); } - 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 + }); + // 根据输入框内容启用或禁用确认按钮 + if (TextUtils.isEmpty(etName.getText())) { + positive.setEnabled(false); } - public void onTextChanged(CharSequence s, int start, int before, int count) { - if (TextUtils.isEmpty(etName.getText())) { - positive.setEnabled(false); - } else { - positive.setEnabled(true); + etName.addTextChangedListener(new TextWatcher() { + public void beforeTextChanged(CharSequence s, int start, int count, int after) { } - } - public void afterTextChanged(Editable s) { - // TODO Auto-generated method stub + public void onTextChanged(CharSequence s, int start, int before, int count) { + if (positive != null) { + positive.setEnabled(!TextUtils.isEmpty(etName.getText())); + } + } - } - }); + public void afterTextChanged(Editable s) { + } + }); + } catch (Exception e) { + Log.e(TAG, "showCreateOrModifyFolderDialog error: " + e.getMessage(), e); + } } + /** + * 处理返回按钮点击 + * 根据当前状态处理返回逻辑 + */ @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; + try { + switch (mState) { + case SUB_FOLDER: + // 从子文件夹返回根文件夹 + mCurrentFolderId = Notes.ID_ROOT_FOLDER; + mState = ListEditState.NOTE_LIST; + startAsyncNotesListQuery(); + if (mTitleBar != null) { + mTitleBar.setVisibility(View.GONE); + } + break; + case CALL_RECORD_FOLDER: + // 从通话记录文件夹返回根文件夹 + mCurrentFolderId = Notes.ID_ROOT_FOLDER; + mState = ListEditState.NOTE_LIST; + if (mAddNewNote != null) { + mAddNewNote.setVisibility(View.VISIBLE); + } + if (mTitleBar != null) { + mTitleBar.setVisibility(View.GONE); + } + startAsyncNotesListQuery(); + break; + case NOTE_LIST: + super.onBackPressed(); + break; + default: + break; + } + } catch (Exception e) { + Log.e(TAG, "onBackPressed error: " + e.getMessage(), e); } } + /** + * 更新桌面小部件 + * @param appWidgetId 小部件ID + * @param appWidgetType 小部件类型 + */ 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 - }); + try { + Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE); + // 根据小部件类型设置对应的提供者类 + 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; + } - sendBroadcast(intent); - setResult(RESULT_OK, intent); + intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[]{appWidgetId}); + sendBroadcast(intent); + setResult(RESULT_OK, intent); + } catch (Exception e) { + Log.e(TAG, "updateWidget error: " + e.getMessage(), e); + } } + /** + * 文件夹上下文菜单创建监听器 + * 为文件夹项创建上下文菜单 + */ 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); + try { + if (mFocusNoteDataItem != null) { + // 设置菜单标题和菜单项 + 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); + } + } catch (Exception e) { + Log.e(TAG, "onCreateContextMenu error: " + e.getMessage(), e); } } }; + /** + * 上下文菜单关闭回调 + * 清除上下文菜单监听器 + */ @Override public void onContextMenuClosed(Menu menu) { - if (mNotesListView != null) { - mNotesListView.setOnCreateContextMenuListener(null); + try { + if (mNotesListView != null) { + mNotesListView.setOnCreateContextMenuListener(null); + } + super.onContextMenuClosed(menu); + } catch (Exception e) { + Log.e(TAG, "onContextMenuClosed error: " + e.getMessage(), e); } - super.onContextMenuClosed(menu); } + /** + * 上下文菜单项选中回调 + * 处理文件夹上下文菜单的选择事件 + */ @Override public boolean onContextItemSelected(MenuItem item) { - if (mFocusNoteDataItem == null) { - Log.e(TAG, "The long click data item is null"); + try { + if (mFocusNoteDataItem == null) { + Log.e(TAG, "The long click data item is null"); + return false; + } + switch (item.getItemId()) { + case MENU_FOLDER_VIEW: + openFolder(mFocusNoteDataItem); // 打开文件夹 + break; + case MENU_FOLDER_DELETE: + showDeleteFolderDialog(); // 显示删除文件夹对话框 + break; + case MENU_FOLDER_CHANGE_NAME: + showCreateOrModifyFolderDialog(false); // 显示重命名文件夹对话框 + break; + default: + break; + } + return true; + } catch (Exception e) { + Log.e(TAG, "onContextItemSelected error: " + e.getMessage(), e); 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; + /** + * 显示删除文件夹对话框 + */ + private void showDeleteFolderDialog() { + 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()); // 删除文件夹 + } + }); + builder.setNegativeButton(android.R.string.cancel, null); + builder.show(); } + /** + * 准备选项菜单 + * 根据当前状态加载对应的菜单资源 + */ @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; + try { + // 清空菜单并根据状态加载不同的菜单资源 + menu.clear(); + if (mState == ListEditState.NOTE_LIST) { + getMenuInflater().inflate(R.menu.note_list, menu); + 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); + } + + // 根据私密模式状态设置菜单项可见性 + MenuItem secretItem = menu.findItem(R.id.menu_secret); + MenuItem quitSecretItem = menu.findItem(R.id.menu_quit_secret); + + if (secretItem != null) { + secretItem.setVisible(secret_mode == 0); + } + if (quitSecretItem != null) { + quitSecretItem.setVisible(secret_mode == 1); + } + + return true; + } catch (Exception e) { + Log.e(TAG, "onPrepareOptionsMenu error: " + e.getMessage(), e); + return false; + } } + /** + * 选项菜单项选中回调 + * 处理选项菜单的选择事件 + */ @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); + try { + switch (item.getItemId()) { + case R.id.menu_secret: + showSecretModeDialog(true); // 显示进入私密模式对话框 + break; + case R.id.menu_quit_secret: + showSecretModeDialog(false); // 显示退出私密模式对话框 + break; + case R.id.menu_new_folder: + showCreateOrModifyFolderDialog(true); // 显示创建文件夹对话框 + break; + case R.id.menu_export_text: + exportNoteToText(); // 导出便签为文本 + break; + case R.id.menu_sync: + // 处理同步相关操作 + if (isSyncMode()) { + if (TextUtils.equals(item.getTitle(), getString(R.string.menu_sync))) { + GTaskSyncService.startSync(this); + } else { + GTaskSyncService.cancelSync(this); + } } else { - GTaskSyncService.cancelSync(this); + startPreferenceActivity(); } + break; + case R.id.menu_setting: + startPreferenceActivity(); // 启动设置活动 + break; + case R.id.menu_new_note: + createNewNote(); // 创建新便签 + break; + case R.id.menu_search: + onSearchRequested(); // 启动搜索 + break; + default: + break; + } + return true; + } catch (Exception e) { + Log.e(TAG, "onOptionsItemSelected error: " + e.getMessage(), e); + return false; + } + } + + /** + * 显示私密模式切换对话框 + * @param enter 是否进入私密模式 + */ + private void showSecretModeDialog(final boolean enter) { + AlertDialog.Builder dialog = new AlertDialog.Builder(NotesListActivity.this); + dialog.setTitle("重要提醒"); + dialog.setMessage(enter ? "您确认进入私密模式吗？" : "您确认退出私密模式吗？"); + dialog.setCancelable(false); + dialog.setPositiveButton("确认", new DialogInterface.OnClickListener() { + @Override + public void onClick(DialogInterface dialog, int which) { + // 只有在用户确认后才切换私密模式并刷新列表 + if (enter) { + secret_mode = 1; + Toast.makeText(NotesListActivity.this, "您已进入私密模式", Toast.LENGTH_SHORT).show(); } else { - startPreferenceActivity(); + secret_mode = 0; + Toast.makeText(NotesListActivity.this, "您已退出私密模式", Toast.LENGTH_SHORT).show(); } - break; - } - case R.id.menu_setting: { - startPreferenceActivity(); - break; + startAsyncNotesListQuery(); // 刷新便签列表 } - case R.id.menu_new_note: { - createNewNote(); - break; + }); + dialog.setNegativeButton("取消", new DialogInterface.OnClickListener() { + @Override + public void onClick(DialogInterface dialog, int which) { + // 取消时不做任何操作 } - case R.id.menu_search: - onSearchRequested(); - break; - default: - break; - } - return true; + }); + dialog.show(); } + /** + * 处理搜索请求 + */ @Override public boolean onSearchRequested() { - startSearch(null, false, null /* appData */, false); - return true; + try { + startSearch(null, false, null, false); + return true; + } catch (Exception e) { + Log.e(TAG, "onSearchRequested error: " + e.getMessage(), e); + return false; + } } + /** + * 导出便签为文本文件 + */ private void exportNoteToText() { - final BackupUtils backup = BackupUtils.getInstance(NotesListActivity.this); - new AsyncTask() { - - @Override - protected Integer doInBackground(Void... unused) { - return backup.exportToText(); + try { + if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) + != PackageManager.PERMISSION_GRANTED) { + ActivityCompat.requestPermissions(this, + new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, + PERMISSION_REQUEST_STORAGE); + return; } - @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(); + final BackupUtils backup = BackupUtils.getInstance(NotesListActivity.this); + mCurrentAsyncTask = new AsyncTask() { + @Override + protected Integer doInBackground(Void... unused) { + return backup.exportToText(); // 执行导出操作 + } + + @Override + protected void onPostExecute(Integer result) { + showExportResultDialog(result); // 显示导出结果对话框 + } + }.execute(); + } catch (Exception e) { + Log.e(TAG, "exportNoteToText error: " + e.getMessage(), e); + } } + /** + * 显示导出结果对话框 + * @param result 导出结果状态 + */ + private void showExportResultDialog(int result) { + try { + AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); + // 根据导出结果显示不同的提示信息 + if (result == BackupUtils.STATE_SD_CARD_UNMOUONTED) { + builder.setTitle(getString(R.string.failed_sdcard_export)); + builder.setMessage(getString(R.string.error_sdcard_unmounted)); + } else if (result == BackupUtils.STATE_SUCCESS) { + BackupUtils backup = BackupUtils.getInstance(NotesListActivity.this); + builder.setTitle(getString(R.string.success_sdcard_export)); + builder.setMessage(getString( + R.string.format_exported_file_location, + backup.getExportedTextFileName(), + backup.getExportedTextFileDir())); + } else if (result == BackupUtils.STATE_SYSTEM_ERROR) { + builder.setTitle(getString(R.string.failed_sdcard_export)); + builder.setMessage(getString(R.string.error_sdcard_export)); + } + builder.setPositiveButton(android.R.string.ok, null); + builder.show(); + } catch (Exception e) { + Log.e(TAG, "showExportResultDialog error: " + e.getMessage(), e); + } + } + + /** + * 判断是否为同步模式 + * @return 是否已设置同步账户 + */ private boolean isSyncMode() { - return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0; + try { + return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0; + } catch (Exception e) { + Log.e(TAG, "isSyncMode error: " + e.getMessage(), e); + return false; + } } + /** + * 启动设置活动 + */ private void startPreferenceActivity() { - Activity from = getParent() != null ? getParent() : this; - Intent intent = new Intent(from, NotesPreferenceActivity.class); - from.startActivityIfNeeded(intent, -1); + try { + Activity from = getParent() != null ? getParent() : this; + Intent intent = new Intent(from, NotesPreferenceActivity.class); + from.startActivityIfNeeded(intent, -1); + } catch (Exception e) { + Log.e(TAG, "startPreferenceActivity error: " + e.getMessage(), e); + } } + /** + * 列表项点击监听器 + * 处理便签列表项的点击事件 + */ 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: + try { + if (view instanceof NotesListItem) { + NoteItemData item = ((NotesListItem) view).getItemData(); + if (mNotesListAdapter != null && mNotesListAdapter.isInChoiceMode()) { + // 多选模式下处理选中状态 if (item.getType() == Notes.TYPE_NOTE) { - openNode(item); - } else { - Log.e(TAG, "Wrong note type in SUB_FOLDER"); + position = position - mNotesListView.getHeaderViewsCount(); + if (mModeCallBack != null) { + mModeCallBack.onItemCheckedStateChanged(null, position, id, + !mNotesListAdapter.isSelectedItem(position)); + } } - break; - default: - break; + return; + } + + // 根据当前状态处理不同类型的项点击 + switch (mState) { + case NOTE_LIST: + if (item.getType() == Notes.TYPE_FOLDER + || item.getType() == Notes.TYPE_SYSTEM) { + openFolder(item); // 打开文件夹 + } else if (item.getType() == Notes.TYPE_NOTE) { + openNode(item); // 打开便签 + } 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); // 打开便签 + } else { + Log.e(TAG, "Wrong note type in SUB_FOLDER"); + } + break; + default: + break; + } } + } catch (Exception e) { + Log.e(TAG, "OnListItemClickListener error: " + e.getMessage(), e); } } - } + /** + * 开始查询目标文件夹 + * 用于移动便签时选择目标文件夹 + */ 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"); + try { + 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 + ")"; + + // 查询可用的目标文件夹 + 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"); + } catch (Exception e) { + Log.e(TAG, "startQueryDestinationFolders error: " + e.getMessage(), e); + } } + /** + * 列表项长按回调 + * 处理便签列表项的长按事件 + */ + @Override 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"); + try { + if (view instanceof NotesListItem) { + mFocusNoteDataItem = ((NotesListItem) view).getItemData(); + if (mFocusNoteDataItem != null && mFocusNoteDataItem.getType() == Notes.TYPE_NOTE + && mNotesListAdapter != null && !mNotesListAdapter.isInChoiceMode()) { + // 长按照便签项，启动多选模式 + if (mNotesListView != null && mNotesListView.startActionMode(mModeCallBack) != null) { + if (mModeCallBack != null) { + mModeCallBack.onItemCheckedStateChanged(null, position, id, true); + } + if (mNotesListView != null) { + mNotesListView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); + } + } else { + Log.e(TAG, "startActionMode fails"); + } + } else if (mFocusNoteDataItem != null && mFocusNoteDataItem.getType() == Notes.TYPE_FOLDER) { + // 长按照文件夹项，注册上下文菜单 + if (mNotesListView != null) { + mNotesListView.setOnCreateContextMenuListener(mFolderOnCreateContextMenuListener); + } } - } else if (mFocusNoteDataItem.getType() == Notes.TYPE_FOLDER) { - mNotesListView.setOnCreateContextMenuListener(mFolderOnCreateContextMenuListener); } + return false; + } catch (Exception e) { + Log.e(TAG, "onItemLongClick error: " + e.getMessage(), e); + return false; + } + } + + /** + * Activity销毁时调用 + * 取消正在执行的异步任务，避免内存泄漏 + */ + @Override + protected void onDestroy() { + try { + if (mCurrentAsyncTask != null && !mCurrentAsyncTask.isCancelled()) { + mCurrentAsyncTask.cancel(true); // 取消异步任务 + } + super.onDestroy(); + } catch (Exception e) { + Log.e(TAG, "onDestroy error: " + e.getMessage(), e); } - return false; } -} +} \ No newline at end of file