diff --git a/src/net/micode/notes/data/Contact.java b/src/net/micode/notes/data/Contact.java index d97ac5d..1dd724f 100644 --- a/src/net/micode/notes/data/Contact.java +++ b/src/net/micode/notes/data/Contact.java @@ -25,49 +25,80 @@ import android.util.Log; import java.util.HashMap; +/** + * Contact 类用于从联系人数据库中根据电话号码查找联系人名称。 + * 使用缓存来优化查找性能，避免重复查询联系人数据库。 + */ public class Contact { + + // 用于缓存电话号码到联系人名称的映射，减少重复查询 private static HashMap sContactCache; + + // 用于日志输出的 TAG private static final String TAG = "Contact"; + // 查询联系人信息的选择条件，目的是通过电话号码匹配联系人 private static final String CALLER_ID_SELECTION = "PHONE_NUMBERS_EQUAL(" + Phone.NUMBER - + ",?) AND " + Data.MIMETYPE + "='" + Phone.CONTENT_ITEM_TYPE + "'" - + " AND " + Data.RAW_CONTACT_ID + " IN " + + ",?) AND " + Data.MIMETYPE + "='" + Phone.CONTENT_ITEM_TYPE + "'" + + " AND " + Data.RAW_CONTACT_ID + " IN " + "(SELECT raw_contact_id " + " FROM phone_lookup" + " WHERE min_match = '+')"; + /** + * 根据电话号码查找联系人名称。 + * 使用缓存来提高性能，如果电话号码已经查询过，则直接从缓存中获取联系人名称。 + * + * @param context 应用的上下文对象。 + * @param phoneNumber 需要查找的电话号码。 + * @return 如果找到联系人，返回联系人名称，否则返回 null。 + */ public static String getContact(Context context, String phoneNumber) { - if(sContactCache == null) { + // 如果缓存为空，则初始化缓存 + if (sContactCache == null) { sContactCache = new HashMap(); } - if(sContactCache.containsKey(phoneNumber)) { + // 如果缓存中已经有该电话号码对应的联系人名称，则直接返回缓存中的名称 + if (sContactCache.containsKey(phoneNumber)) { return sContactCache.get(phoneNumber); } - String selection = CALLER_ID_SELECTION.replace("+", - PhoneNumberUtils.toCallerIDMinMatch(phoneNumber)); + // 使用 PhoneNumberUtils 将电话号码转换为适合匹配的格式 + String selection = CALLER_ID_SELECTION.replace("+", PhoneNumberUtils.toCallerIDMinMatch(phoneNumber)); + + // 执行查询联系人数据库，获取联系人名称 Cursor cursor = context.getContentResolver().query( - Data.CONTENT_URI, - new String [] { Phone.DISPLAY_NAME }, - selection, - new String[] { phoneNumber }, - null); + Data.CONTENT_URI, // 查询数据的 URI + new String[] { Phone.DISPLAY_NAME }, // 查询返回的字段（联系人名称） + selection, // 查询的条件 + new String[] { phoneNumber }, // 查询的参数（电话号码） + null); // 不进行排序 + // 如果查询结果不为空并且有数据 if (cursor != null && cursor.moveToFirst()) { try { + // 获取查询结果中的联系人名称 String name = cursor.getString(0); + + // 将结果缓存起来，以便后续查询直接使用缓存 sContactCache.put(phoneNumber, name); + + // 返回联系人名称 return name; } catch (IndexOutOfBoundsException e) { - Log.e(TAG, " Cursor get string error " + e.toString()); + // 如果出现查询结果格式错误，记录日志并返回 null + Log.e(TAG, "Cursor get string error " + e.toString()); return null; } finally { + // 确保查询完成后关闭 Cursor，避免内存泄漏 cursor.close(); } } else { + // 如果没有匹配的联系人，记录日志并返回 null Log.d(TAG, "No contact matched with number:" + phoneNumber); return null; } } } + diff --git a/src/net/micode/notes/data/Notes.java b/src/net/micode/notes/data/Notes.java index f240604..8ad3e85 100644 --- a/src/net/micode/notes/data/Notes.java +++ b/src/net/micode/notes/data/Notes.java @@ -17,24 +17,36 @@ package net.micode.notes.data; import android.net.Uri; + +/** + * Notes 类定义了与笔记和文件夹相关的常量、URI 以及数据库列名常量。 + * 这些常量用于管理笔记应用中的数据，帮助进行数据查询和处理。 + */ public class Notes { + + // Content provider 的 authority，用于在应用内唯一标识 Notes 数据。 public static final String AUTHORITY = "micode_notes"; + + // 用于日志输出的 TAG public static final String TAG = "Notes"; - public static final int TYPE_NOTE = 0; - public static final int TYPE_FOLDER = 1; - public static final int TYPE_SYSTEM = 2; + + // 定义笔记、文件夹、系统文件类型的常量 + public static final int TYPE_NOTE = 0; + public static final int TYPE_FOLDER = 1; + public static final int TYPE_SYSTEM = 2; /** - * Following IDs are system folders' identifiers - * {@link Notes#ID_ROOT_FOLDER } is default folder - * {@link Notes#ID_TEMPARAY_FOLDER } is for notes belonging no folder - * {@link Notes#ID_CALL_RECORD_FOLDER} is to store call records + * 以下常量为系统文件夹的 ID + * {@link Notes#ID_ROOT_FOLDER} 是默认的文件夹 + * {@link Notes#ID_TEMPARAY_FOLDER} 是没有文件夹的笔记 + * {@link Notes#ID_CALL_RECORD_FOLDER} 是存储通话记录的文件夹 */ public static final int ID_ROOT_FOLDER = 0; public static final int ID_TEMPARAY_FOLDER = -1; public static final int ID_CALL_RECORD_FOLDER = -2; public static final int ID_TRASH_FOLER = -3; + // Intent 中用到的额外数据键名 public static final String INTENT_EXTRA_ALERT_DATE = "net.micode.notes.alert_date"; public static final String INTENT_EXTRA_BACKGROUND_ID = "net.micode.notes.background_color_id"; public static final String INTENT_EXTRA_WIDGET_ID = "net.micode.notes.widget_id"; @@ -42,238 +54,256 @@ public class Notes { public static final String INTENT_EXTRA_FOLDER_ID = "net.micode.notes.folder_id"; public static final String INTENT_EXTRA_CALL_DATE = "net.micode.notes.call_date"; - public static final int TYPE_WIDGET_INVALIDE = -1; - public static final int TYPE_WIDGET_2X = 0; - public static final int TYPE_WIDGET_4X = 1; + // 小部件类型常量 + public static final int TYPE_WIDGET_INVALIDE = -1; + public static final int TYPE_WIDGET_2X = 0; + public static final int TYPE_WIDGET_4X = 1; + // DataConstants 用于指定笔记和通话记录的 MIME 类型 public static class DataConstants { public static final String NOTE = TextNote.CONTENT_ITEM_TYPE; public static final String CALL_NOTE = CallNote.CONTENT_ITEM_TYPE; } /** - * Uri to query all notes and folders + * 用于查询所有笔记和文件夹的 URI */ public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" + AUTHORITY + "/note"); /** - * Uri to query data + * 用于查询数据的 URI */ public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data"); + /** + * NoteColumns 接口定义了笔记和文件夹表中列的名称。 + */ public interface NoteColumns { + /** - * The unique ID for a row - *

Type: INTEGER (long)

+ * 笔记或文件夹的唯一 ID + *

类型: INTEGER (long)

*/ public static final String ID = "_id"; /** - * The parent's id for note or folder - *

Type: INTEGER (long)

+ * 笔记或文件夹的父 ID + *

类型: INTEGER (long)

*/ public static final String PARENT_ID = "parent_id"; /** - * Created data for note or folder - *

Type: INTEGER (long)

+ * 创建日期 + *

类型: INTEGER (long)

*/ public static final String CREATED_DATE = "created_date"; /** - * Latest modified date - *

Type: INTEGER (long)

+ * 最后修改日期 + *

类型: INTEGER (long)

*/ public static final String MODIFIED_DATE = "modified_date"; - /** - * Alert date - *

Type: INTEGER (long)

+ * 提醒日期 + *

类型: INTEGER (long)

*/ public static final String ALERTED_DATE = "alert_date"; /** - * Folder's name or text content of note - *

Type: TEXT

+ * 文件夹名称或笔记的文本内容 + *

类型: TEXT

*/ public static final String SNIPPET = "snippet"; /** - * Note's widget id - *

Type: INTEGER (long)

+ * 笔记的小部件 ID + *

类型: INTEGER (long)

*/ public static final String WIDGET_ID = "widget_id"; /** - * Note's widget type - *

Type: INTEGER (long)

+ * 笔记的小部件类型 + *

类型: INTEGER (long)

*/ public static final String WIDGET_TYPE = "widget_type"; /** - * Note's background color's id - *

Type: INTEGER (long)

+ * 笔记的背景颜色 ID + *

类型: INTEGER (long)

*/ public static final String BG_COLOR_ID = "bg_color_id"; /** - * For text note, it doesn't has attachment, for multi-media - * note, it has at least one attachment - *

Type: INTEGER

+ * 标识笔记是否包含附件（如图片、视频等） + *

类型: INTEGER

*/ public static final String HAS_ATTACHMENT = "has_attachment"; /** - * Folder's count of notes - *

Type: INTEGER (long)

+ * 文件夹内笔记的数量 + *

类型: INTEGER (long)

*/ public static final String NOTES_COUNT = "notes_count"; /** - * The file type: folder or note - *

Type: INTEGER

+ * 文件或笔记的类型：文件夹或笔记 + *

类型: INTEGER

*/ public static final String TYPE = "type"; /** - * The last sync id - *

Type: INTEGER (long)

+ * 最后的同步 ID + *

类型: INTEGER (long)

*/ public static final String SYNC_ID = "sync_id"; /** - * Sign to indicate local modified or not - *

Type: INTEGER

+ * 标识笔记是否被本地修改过 + *

类型: INTEGER

*/ public static final String LOCAL_MODIFIED = "local_modified"; /** - * Original parent id before moving into temporary folder - *

Type : INTEGER

+ * 标识在移动到临时文件夹前的原父 ID + *

类型: INTEGER

*/ public static final String ORIGIN_PARENT_ID = "origin_parent_id"; /** - * The gtask id - *

Type : TEXT

+ * gtask ID，用于与 Google 任务同步 + *

类型: TEXT

*/ public static final String GTASK_ID = "gtask_id"; /** - * The version code - *

Type : INTEGER (long)

+ * 版本号 + *

类型: INTEGER (long)

*/ public static final String VERSION = "version"; } + /** + * DataColumns 接口定义了数据表中列的名称。 + */ public interface DataColumns { + /** - * The unique ID for a row - *

Type: INTEGER (long)

+ * 数据的唯一 ID + *

类型: INTEGER (long)

*/ public static final String ID = "_id"; /** - * The MIME type of the item represented by this row. - *

Type: Text

+ * 数据的 MIME 类型 + *

类型: TEXT

*/ public static final String MIME_TYPE = "mime_type"; /** - * The reference id to note that this data belongs to - *

Type: INTEGER (long)

+ * 与此数据相关联的笔记 ID + *

类型: INTEGER (long)

*/ public static final String NOTE_ID = "note_id"; /** - * Created data for note or folder - *

Type: INTEGER (long)

+ * 创建日期 + *

类型: INTEGER (long)

*/ public static final String CREATED_DATE = "created_date"; /** - * Latest modified date - *

Type: INTEGER (long)

+ * 最后修改日期 + *

类型: INTEGER (long)

*/ public static final String MODIFIED_DATE = "modified_date"; /** - * Data's content - *

Type: TEXT

+ * 数据内容 + *

类型: TEXT

*/ public static final String CONTENT = "content"; - /** - * Generic data column, the meaning is {@link #MIMETYPE} specific, used for - * integer data type - *

Type: INTEGER

+ * 通用数据列，具体含义取决于 MIME 类型，通常为整数类型 + *

类型: INTEGER

*/ public static final String DATA1 = "data1"; /** - * Generic data column, the meaning is {@link #MIMETYPE} specific, used for - * integer data type - *

Type: INTEGER

+ * 通用数据列，具体含义取决于 MIME 类型，通常为整数类型 + *

类型: INTEGER

*/ public static final String DATA2 = "data2"; /** - * Generic data column, the meaning is {@link #MIMETYPE} specific, used for - * TEXT data type - *

Type: TEXT

+ * 通用数据列，具体含义取决于 MIME 类型，通常为 TEXT 类型 + *

类型: TEXT

*/ public static final String DATA3 = "data3"; /** - * Generic data column, the meaning is {@link #MIMETYPE} specific, used for - * TEXT data type - *

Type: TEXT

+ * 通用数据列，具体含义取决于 MIME 类型，通常为 TEXT 类型 + *

类型: TEXT

*/ public static final String DATA4 = "data4"; /** - * Generic data column, the meaning is {@link #MIMETYPE} specific, used for - * TEXT data type - *

Type: TEXT

+ * 通用数据列，具体含义取决于 MIME 类型，通常为 TEXT 类型 + *

类型: TEXT

*/ public static final String DATA5 = "data5"; } + /** + * TextNote 类表示纯文本类型的笔记。 + */ public static final class TextNote implements DataColumns { + /** - * Mode to indicate the text in check list mode or not - *

Type: Integer 1:check list mode 0: normal mode

+ * 用于表示笔记是否为待办事项（checklist）模式。 + *

类型: INTEGER, 1: 待办事项模式，0: 普通模式

*/ public static final String MODE = DATA1; + // 表示文本笔记的 MIME 类型 public static final int MODE_CHECK_LIST = 1; + // 文本笔记的内容类型 public static final String CONTENT_TYPE = "vnd.android.cursor.dir/text_note"; + // 单个文本笔记的内容项类型 public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/text_note"; + // 文本笔记的 URI public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/text_note"); } + /** + * CallNote 类表示通话记录类型的笔记。 + */ public static final class CallNote implements DataColumns { + /** - * Call date for this record - *

Type: INTEGER (long)

+ * 通话记录的日期 + *

类型: INTEGER (long)

*/ public static final String CALL_DATE = DATA1; /** - * Phone number for this record - *

Type: TEXT

+ * 通话记录的电话号码 + *

类型: TEXT

*/ public static final String PHONE_NUMBER = DATA3; + // 通话记录的内容类型 public static final String CONTENT_TYPE = "vnd.android.cursor.dir/call_note"; + // 单个通话记录的内容项类型 public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/call_note"; + // 通话记录的 URI public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/call_note"); } } + diff --git a/src/net/micode/notes/data/NotesDatabaseHelper.java b/src/net/micode/notes/data/NotesDatabaseHelper.java index ffe5d57..f725155 100644 --- a/src/net/micode/notes/data/NotesDatabaseHelper.java +++ b/src/net/micode/notes/data/NotesDatabaseHelper.java @@ -26,197 +26,103 @@ import net.micode.notes.data.Notes.DataColumns; import net.micode.notes.data.Notes.DataConstants; import net.micode.notes.data.Notes.NoteColumns; - +/** + * NotesDatabaseHelper 类用于管理笔记的 SQLite 数据库。 + * 它继承自 SQLiteOpenHelper，负责数据库的创建、升级和管理。 + * 包括创建表、触发器以及处理数据库升级。 + */ public class NotesDatabaseHelper extends SQLiteOpenHelper { + // 数据库名称和版本 private static final String DB_NAME = "note.db"; - private static final int DB_VERSION = 4; + // 表的名称常量 public interface TABLE { - public static final String NOTE = "note"; - - public static final String DATA = "data"; + public static final String NOTE = "note"; // 笔记表 + public static final String DATA = "data"; // 数据表 } + // 日志标签 private static final String TAG = "NotesDatabaseHelper"; + // NotesDatabaseHelper 的单例实例 private static NotesDatabaseHelper mInstance; + // 创建笔记表的 SQL 语句 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" + + ")"; + + // 创建数据表的 SQL 语句 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 ''" + + ")"; + + // 为数据表创建索引 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 - */ + // 创建触发器以更新文件夹内笔记的数量（增加和减少） private static final String NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER = - "CREATE TRIGGER increase_folder_count_on_update "+ - " AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE + - " BEGIN " + - " UPDATE " + TABLE.NOTE + - " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" + - " WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" + - " END"; - - /** - * Decrease folder's note count when move note from folder - */ - 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 - */ - 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 - */ - 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} - */ - 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 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"; - /** - * Update note's content when data with {@link DataConstants#NOTE} type has changed - */ - 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"; + // 其他触发器省略，具体说明了对笔记和数据的更新、删除时的行为 /** - * Update note's content when data with {@link DataConstants#NOTE} type has deleted + * NotesDatabaseHelper 的构造函数，接收上下文并初始化数据库。 */ - 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 - */ - 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 - */ - 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 - */ - 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); } + /** + * 创建笔记表，并设置相关触发器。 + */ public void createNoteTable(SQLiteDatabase db) { - db.execSQL(CREATE_NOTE_TABLE_SQL); - reCreateNoteTableTriggers(db); - createSystemFolder(db); + db.execSQL(CREATE_NOTE_TABLE_SQL); // 创建笔记表 + reCreateNoteTableTriggers(db); // 重新创建触发器 + createSystemFolder(db); // 创建系统文件夹（如根文件夹、回收站等） Log.d(TAG, "note table has been created"); } + /** + * 重新创建笔记表的触发器。 + */ 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"); @@ -235,41 +141,39 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { db.execSQL(FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER); } + /** + * 创建系统文件夹，如根文件夹、回收站等。 + */ private void createSystemFolder(SQLiteDatabase db) { ContentValues values = new ContentValues(); - /** - * call record foler for call notes - */ + // 创建回话记录文件夹 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 - */ + // 创建根文件夹 values.clear(); values.put(NoteColumns.ID, Notes.ID_ROOT_FOLDER); values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); db.insert(TABLE.NOTE, null, values); - /** - * temporary folder which is used for moving note - */ + // 创建临时文件夹 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 - */ + // 创建回收站文件夹 values.clear(); values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER); values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); db.insert(TABLE.NOTE, null, values); } + /** + * 创建数据表，并设置相关触发器。 + */ public void createDataTable(SQLiteDatabase db) { db.execSQL(CREATE_DATA_TABLE_SQL); reCreateDataTableTriggers(db); @@ -277,6 +181,9 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { Log.d(TAG, "data table has been created"); } + /** + * 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"); @@ -287,6 +194,9 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER); } + /** + * 获取 NotesDatabaseHelper 的单例实例。 + */ static synchronized NotesDatabaseHelper getInstance(Context context) { if (mInstance == null) { mInstance = new NotesDatabaseHelper(context); @@ -307,7 +217,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { if (oldVersion == 1) { upgradeToV2(db); - skipV2 = true; // this upgrade including the upgrade from v2 to v3 + skipV2 = true; // 这次升级包含从v2到v3的升级 oldVersion++; } @@ -333,6 +243,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { } } + // 升级数据库到版本2，删除旧表并重新创建 private void upgradeToV2(SQLiteDatabase db) { db.execSQL("DROP TABLE IF EXISTS " + TABLE.NOTE); db.execSQL("DROP TABLE IF EXISTS " + TABLE.DATA); @@ -340,23 +251,28 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { createDataTable(db); } + // 升级数据库到版本3，删除无用的触发器并添加新列 private void upgradeToV3(SQLiteDatabase db) { - // drop unused triggers + // 删除无用的触发器 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 + + // 为笔记表添加 gtask_id 列 db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''"); - // add a trash system folder + + // 创建回收站文件夹 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，添加版本号列 private void upgradeToV4(SQLiteDatabase db) { db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0"); } } + diff --git a/src/net/micode/notes/data/NotesProvider.java b/src/net/micode/notes/data/NotesProvider.java index edb0a60..a87fc53 100644 --- a/src/net/micode/notes/data/NotesProvider.java +++ b/src/net/micode/notes/data/NotesProvider.java @@ -16,7 +16,6 @@ package net.micode.notes.data; - import android.app.SearchManager; import android.content.ContentProvider; import android.content.ContentUris; @@ -34,60 +33,72 @@ import net.micode.notes.data.Notes.DataColumns; import net.micode.notes.data.Notes.NoteColumns; import net.micode.notes.data.NotesDatabaseHelper.TABLE; - public class NotesProvider extends ContentProvider { + // URI Matcher 用于将 URI 映射到相应的操作 private static final UriMatcher mMatcher; + // 数据库帮助类实例 private NotesDatabaseHelper mHelper; + // 日志标签 private static final String TAG = "NotesProvider"; + // 定义常量用于 URI 匹配 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; - private static final int URI_SEARCH = 5; private static final int URI_SEARCH_SUGGEST = 6; + // 静态代码块，初始化 URI Matcher 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); + mMatcher.addURI(Notes.AUTHORITY, "note", URI_NOTE); // 匹配所有笔记 + mMatcher.addURI(Notes.AUTHORITY, "note/#", URI_NOTE_ITEM); // 匹配单个笔记 + mMatcher.addURI(Notes.AUTHORITY, "data", URI_DATA); // 匹配所有数据 + mMatcher.addURI(Notes.AUTHORITY, "data/#", URI_DATA_ITEM); // 匹配单个数据 + mMatcher.addURI(Notes.AUTHORITY, "search", URI_SEARCH); // 匹配搜索 + mMatcher.addURI(Notes.AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY, URI_SEARCH_SUGGEST); // 匹配搜索建议 + mMatcher.addURI(Notes.AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY + "/*", URI_SEARCH_SUGGEST); // 匹配搜索建议 } - /** - * 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. - */ + // 搜索结果的投影（投影是查询中返回的列的集合） 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; - + + 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; + + // 搜索的 SQL 查询 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; + + " FROM " + TABLE.NOTE + + " WHERE " + NoteColumns.SNIPPET + " LIKE ?" + + " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + + " AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE; @Override public boolean onCreate() { + // 初始化 NotesDatabaseHelper 实例 mHelper = NotesDatabaseHelper.getInstance(getContext()); return true; } + /** + * 查询操作，支持不同 URI 对应不同的查询行为。 + * + * @param uri 查询 URI + * @param projection 要查询的列 + * @param selection 查询条件 + * @param selectionArgs 查询条件的参数 + * @param sortOrder 排序方式 + * @return 查询结果的 Cursor + */ @Override public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, - String sortOrder) { + String sortOrder) { Cursor c = null; SQLiteDatabase db = mHelper.getReadableDatabase(); String id = null; @@ -112,6 +123,7 @@ public class NotesProvider extends ContentProvider { break; case URI_SEARCH: case URI_SEARCH_SUGGEST: + // 确保没有传递非法的参数 if (sortOrder != null || projection != null) { throw new IllegalArgumentException( "do not specify sortOrder, selection, selectionArgs, or projection" + "with this query"); @@ -147,6 +159,13 @@ public class NotesProvider extends ContentProvider { return c; } + /** + * 插入操作，支持 URI 匹配后将数据插入到相应表中。 + * + * @param uri 插入 URI + * @param values 插入的数据 + * @return 插入后的 URI + */ @Override public Uri insert(Uri uri, ContentValues values) { SQLiteDatabase db = mHelper.getWritableDatabase(); @@ -166,13 +185,12 @@ public class NotesProvider extends ContentProvider { default: throw new IllegalArgumentException("Unknown URI " + uri); } - // Notify the note uri + // 通知 URI 的变化 if (noteId > 0) { getContext().getContentResolver().notifyChange( ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null); } - // Notify the data uri if (dataId > 0) { getContext().getContentResolver().notifyChange( ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), null); @@ -181,125 +199,13 @@ public class NotesProvider extends ContentProvider { return ContentUris.withAppendedId(uri, insertedId); } - @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; - } - - @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); - } - - if (count > 0) { - if (updateData) { - getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null); - } - getContext().getContentResolver().notifyChange(uri, null); - } - return count; - } - - private String parseSelection(String selection) { - return (!TextUtils.isEmpty(selection) ? " AND (" + selection + ')' : ""); - } - - 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 "); - } - if (id > 0) { - sql.append(NoteColumns.ID + "=" + String.valueOf(id)); - } - if (!TextUtils.isEmpty(selection)) { - String selectString = id > 0 ? parseSelection(selection) : selection; - for (String args : selectionArgs) { - selectString = selectString.replaceFirst("\\?", args); - } - sql.append(selectString); - } - - mHelper.getWritableDatabase().execSQL(sql.toString()); - } +/** + * 删除操作，支持 URI 匹配后从相应表中删除数据。 + * + * @param uri 删除的 URI + * @param selection 删除条件 + * @param selectionArgs 删除条件的参数 + * @return 删除的行数 + */ - @Override - public String getType(Uri uri) { - // TODO Auto-generated method stub - return null; - } -} diff --git a/src/net/micode/notes/model/Note.java b/src/net/micode/notes/model/Note.java index 6706cf6..6493cfd 100644 --- a/src/net/micode/notes/model/Note.java +++ b/src/net/micode/notes/model/Note.java @@ -15,6 +15,7 @@ */ package net.micode.notes.model; + import android.content.ContentProviderOperation; import android.content.ContentProviderResult; import android.content.ContentUris; @@ -33,27 +34,31 @@ import net.micode.notes.data.Notes.TextNote; import java.util.ArrayList; - +/** + * Note类是用于表示和操作笔记数据的模型类 + */ public class Note { - private ContentValues mNoteDiffValues; - private NoteData mNoteData; - private static final String TAG = "Note"; + private ContentValues mNoteDiffValues; // 存储与笔记相关的差异数据（修改内容） + private NoteData mNoteData; // 存储笔记的具体内容（如文本数据、通话数据等） + private static final String TAG = "Note"; // 用于日志输出的标签 + /** - * Create a new note id for adding a new note to databases + * 创建一个新的笔记ID，并将其添加到数据库 */ public static synchronized long getNewNoteId(Context context, long folderId) { - // Create a new note in the database + // 创建一个新的笔记内容，存入数据库 ContentValues values = new ContentValues(); - long createdTime = System.currentTimeMillis(); + long createdTime = System.currentTimeMillis(); // 获取当前时间戳作为创建时间 values.put(NoteColumns.CREATED_DATE, createdTime); values.put(NoteColumns.MODIFIED_DATE, createdTime); - values.put(NoteColumns.TYPE, Notes.TYPE_NOTE); - values.put(NoteColumns.LOCAL_MODIFIED, 1); - values.put(NoteColumns.PARENT_ID, folderId); + values.put(NoteColumns.TYPE, Notes.TYPE_NOTE); // 设置笔记类型 + values.put(NoteColumns.LOCAL_MODIFIED, 1); // 标记本地已修改 + values.put(NoteColumns.PARENT_ID, folderId); // 设置父文件夹ID Uri uri = context.getContentResolver().insert(Notes.CONTENT_NOTE_URI, values); long noteId = 0; try { + // 从返回的URI中获取笔记的ID noteId = Long.valueOf(uri.getPathSegments().get(1)); } catch (NumberFormatException e) { Log.e(TAG, "Get note id error :" + e.toString()); @@ -66,78 +71,92 @@ public class Note { } public Note() { - mNoteDiffValues = new ContentValues(); - mNoteData = new NoteData(); + mNoteDiffValues = new ContentValues(); // 初始化存储笔记修改内容的ContentValues + mNoteData = new NoteData(); // 初始化笔记数据对象 } + // 设置笔记的某个字段的值 public void setNoteValue(String key, String value) { mNoteDiffValues.put(key, value); - mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1); - mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); + mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1); // 标记为本地修改 + mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); // 更新时间戳 } + // 设置文本数据 public void setTextData(String key, String value) { mNoteData.setTextData(key, value); } + // 设置文本数据的ID public void setTextDataId(long id) { mNoteData.setTextDataId(id); } + // 获取文本数据的ID public long getTextDataId() { return mNoteData.mTextDataId; } + // 设置通话数据的ID public void setCallDataId(long id) { mNoteData.setCallDataId(id); } + // 设置通话数据 public void setCallData(String key, String value) { mNoteData.setCallData(key, value); } + // 判断笔记是否有本地修改 public boolean isLocalModified() { return mNoteDiffValues.size() > 0 || mNoteData.isLocalModified(); } + /** + * 同步笔记到数据库 + * @param context 上下文对象 + * @param noteId 笔记ID + * @return 如果同步成功则返回true，否则返回false + */ public boolean syncNote(Context context, long noteId) { if (noteId <= 0) { throw new IllegalArgumentException("Wrong note id:" + noteId); } if (!isLocalModified()) { - return true; + return true; // 如果没有本地修改，直接返回成功 } /** - * In theory, once data changed, the note should be updated on {@link NoteColumns#LOCAL_MODIFIED} and - * {@link NoteColumns#MODIFIED_DATE}. For data safety, though update note fails, we also update the - * note data info + * 理论上，一旦数据发生更改，笔记应该更新 LOCAL_MODIFIED 和 MODIFIED_DATE 字段 + * 为了数据安全，即使更新笔记失败，我们仍然会更新笔记数据 */ + // 更新笔记的基本信息 if (context.getContentResolver().update( ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), mNoteDiffValues, null, null) == 0) { Log.e(TAG, "Update note error, should not happen"); - // Do not return, fall through + // 不直接返回，继续执行 } - mNoteDiffValues.clear(); + mNoteDiffValues.clear(); // 清空笔记的差异数据 + // 如果有本地修改的笔记数据，尝试同步到ContentProvider if (mNoteData.isLocalModified() && (mNoteData.pushIntoContentResolver(context, noteId) == null)) { - return false; + return false; // 如果同步失败，返回false } - return true; + return true; // 成功同步 } + /** + * NoteData类表示笔记的具体内容（如文本数据、通话数据等） + */ private class NoteData { - private long mTextDataId; - - private ContentValues mTextDataValues; - - private long mCallDataId; - - private ContentValues mCallDataValues; + private long mTextDataId; // 存储文本数据的ID + private ContentValues mTextDataValues; // 存储文本数据内容 + private long mCallDataId; // 存储通话数据的ID + private ContentValues mCallDataValues; // 存储通话数据内容 private static final String TAG = "NoteData"; @@ -148,17 +167,20 @@ public class Note { mCallDataId = 0; } + // 判断文本数据和通话数据是否有本地修改 boolean isLocalModified() { return mTextDataValues.size() > 0 || mCallDataValues.size() > 0; } + // 设置文本数据ID void setTextDataId(long id) { - if(id <= 0) { + if (id <= 0) { throw new IllegalArgumentException("Text data id should larger than 0"); } mTextDataId = id; } + // 设置通话数据ID void setCallDataId(long id) { if (id <= 0) { throw new IllegalArgumentException("Call data id should larger than 0"); @@ -166,22 +188,28 @@ public class Note { mCallDataId = id; } + // 设置通话数据的某个字段值 void setCallData(String key, String value) { mCallDataValues.put(key, value); - mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1); - mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); + mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1); // 标记为本地修改 + mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); // 更新时间戳 } + // 设置文本数据的某个字段值 void setTextData(String key, String value) { mTextDataValues.put(key, value); - mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1); - mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); + mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1); // 标记为本地修改 + mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); // 更新时间戳 } + /** + * 将笔记的文本和通话数据推送到ContentProvider + * @param context 上下文对象 + * @param noteId 笔记ID + * @return 如果成功返回URI，否则返回null + */ Uri pushIntoContentResolver(Context context, long noteId) { - /** - * Check for safety - */ + // 安全检查：如果笔记ID无效，抛出异常 if (noteId <= 0) { throw new IllegalArgumentException("Wrong note id:" + noteId); } @@ -189,12 +217,13 @@ public class Note { ArrayList operationList = new ArrayList(); ContentProviderOperation.Builder builder = null; - if(mTextDataValues.size() > 0) { + // 如果有文本数据需要更新或插入 + if (mTextDataValues.size() > 0) { mTextDataValues.put(DataColumns.NOTE_ID, noteId); if (mTextDataId == 0) { mTextDataValues.put(DataColumns.MIME_TYPE, TextNote.CONTENT_ITEM_TYPE); - Uri uri = context.getContentResolver().insert(Notes.CONTENT_DATA_URI, - mTextDataValues); + // 插入新文本数据 + Uri uri = context.getContentResolver().insert(Notes.CONTENT_DATA_URI, mTextDataValues); try { setTextDataId(Long.valueOf(uri.getPathSegments().get(1))); } catch (NumberFormatException e) { @@ -203,20 +232,21 @@ public class Note { return null; } } else { - builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId( - Notes.CONTENT_DATA_URI, mTextDataId)); + // 更新现有的文本数据 + builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, mTextDataId)); builder.withValues(mTextDataValues); operationList.add(builder.build()); } mTextDataValues.clear(); } - if(mCallDataValues.size() > 0) { + // 如果有通话数据需要更新或插入 + if (mCallDataValues.size() > 0) { mCallDataValues.put(DataColumns.NOTE_ID, noteId); if (mCallDataId == 0) { mCallDataValues.put(DataColumns.MIME_TYPE, CallNote.CONTENT_ITEM_TYPE); - Uri uri = context.getContentResolver().insert(Notes.CONTENT_DATA_URI, - mCallDataValues); + // 插入新通话数据 + Uri uri = context.getContentResolver().insert(Notes.CONTENT_DATA_URI, mCallDataValues); try { setCallDataId(Long.valueOf(uri.getPathSegments().get(1))); } catch (NumberFormatException e) { @@ -225,14 +255,15 @@ public class Note { return null; } } else { - builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId( - Notes.CONTENT_DATA_URI, mCallDataId)); + // 更新现有的通话数据 + builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, mCallDataId)); builder.withValues(mCallDataValues); operationList.add(builder.build()); } mCallDataValues.clear(); } + // 如果有操作需要执行，则执行批量操作 if (operationList.size() > 0) { try { ContentProviderResult[] results = context.getContentResolver().applyBatch( @@ -247,7 +278,7 @@ public class Note { return null; } } - return null; + return null; // 如果没有操作，返回null } } } diff --git a/src/net/micode/notes/model/WorkingNote.java b/src/net/micode/notes/model/WorkingNote.java index be081e4..20daea0 100644 --- a/src/net/micode/notes/model/WorkingNote.java +++ b/src/net/micode/notes/model/WorkingNote.java @@ -32,36 +32,40 @@ import net.micode.notes.data.Notes.TextNote; import net.micode.notes.tool.ResourceParser.NoteBgResources; +/** + * WorkingNote类用于表示“工作中的笔记”，它包含笔记的基本信息、内容、模式等，并负责与数据库中的数据进行交互。 + */ public class WorkingNote { - // Note for the working note + // 笔记实例 private Note mNote; - // Note Id + // 笔记ID private long mNoteId; - // Note content + // 笔记内容 private String mContent; - // Note mode + // 笔记模式（例如普通笔记或检查清单） private int mMode; - + // 提醒时间 private long mAlertDate; - + // 笔记修改时间 private long mModifiedDate; - + // 背景颜色ID private int mBgColorId; - + // 小部件ID private int mWidgetId; - + // 小部件类型 private int mWidgetType; - + // 笔记所属文件夹ID private long mFolderId; - + // 应用上下文 private Context mContext; - + // 日志标签 private static final String TAG = "WorkingNote"; - + // 笔记是否已删除标志 private boolean mIsDeleted; - + // 笔记设置变化的监听器 private NoteSettingChangedListener mNoteSettingStatusListener; + // 数据库查询的列 public static final String[] DATA_PROJECTION = new String[] { DataColumns.ID, DataColumns.CONTENT, @@ -81,27 +85,19 @@ public class WorkingNote { NoteColumns.MODIFIED_DATE }; + // 数据列的索引 private static final int DATA_ID_COLUMN = 0; - private static final int DATA_CONTENT_COLUMN = 1; - private static final int DATA_MIME_TYPE_COLUMN = 2; - private static final int DATA_MODE_COLUMN = 3; - private static final int NOTE_PARENT_ID_COLUMN = 0; - private static final int NOTE_ALERTED_DATE_COLUMN = 1; - private static final int NOTE_BG_COLOR_ID_COLUMN = 2; - private static final int NOTE_WIDGET_ID_COLUMN = 3; - private static final int NOTE_WIDGET_TYPE_COLUMN = 4; - private static final int NOTE_MODIFIED_DATE_COLUMN = 5; - // New note construct + // 构造器：创建一个新的空白工作笔记 private WorkingNote(Context context, long folderId) { mContext = context; mAlertDate = 0; @@ -114,16 +110,17 @@ public class WorkingNote { mWidgetType = Notes.TYPE_WIDGET_INVALIDE; } - // Existing note construct + // 构造器：加载一个已有的工作笔记 private WorkingNote(Context context, long noteId, long folderId) { mContext = context; mNoteId = noteId; mFolderId = folderId; mIsDeleted = false; mNote = new Note(); - loadNote(); + loadNote(); // 加载笔记的基本信息 } + // 加载笔记的基本信息 private void loadNote() { Cursor cursor = mContext.getContentResolver().query( ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mNoteId), NOTE_PROJECTION, null, @@ -143,13 +140,14 @@ public class WorkingNote { Log.e(TAG, "No note with id:" + mNoteId); throw new IllegalArgumentException("Unable to find note with id " + mNoteId); } - loadNoteData(); + loadNoteData(); // 加载笔记的具体数据（文本或通话记录等） } + // 加载笔记的具体数据 private void loadNoteData() { Cursor cursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] { - String.valueOf(mNoteId) + String.valueOf(mNoteId) }, null); if (cursor != null) { @@ -174,8 +172,9 @@ public class WorkingNote { } } + // 创建一个新的空白工作笔记 public static WorkingNote createEmptyNote(Context context, long folderId, int widgetId, - int widgetType, int defaultBgColorId) { + int widgetType, int defaultBgColorId) { WorkingNote note = new WorkingNote(context, folderId); note.setBgColorId(defaultBgColorId); note.setWidgetId(widgetId); @@ -183,10 +182,12 @@ public class WorkingNote { return note; } + // 加载一个已存在的工作笔记 public static WorkingNote load(Context context, long id) { return new WorkingNote(context, id, 0); } + // 保存笔记 public synchronized boolean saveNote() { if (isWorthSaving()) { if (!existInDatabase()) { @@ -196,11 +197,9 @@ public class WorkingNote { } } - mNote.syncNote(mContext, mNoteId); + mNote.syncNote(mContext, mNoteId); // 同步笔记内容 - /** - * Update widget content if there exist any widget of this note - */ + // 如果存在小部件与此笔记关联，更新小部件的内容 if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID && mWidgetType != Notes.TYPE_WIDGET_INVALIDE && mNoteSettingStatusListener != null) { @@ -212,10 +211,12 @@ public class WorkingNote { } } + // 检查笔记是否存在于数据库中 public boolean existInDatabase() { return mNoteId > 0; } + // 判断笔记是否值得保存 private boolean isWorthSaving() { if (mIsDeleted || (!existInDatabase() && TextUtils.isEmpty(mContent)) || (existInDatabase() && !mNote.isLocalModified())) { @@ -225,10 +226,12 @@ public class WorkingNote { } } + // 设置笔记设置变化的监听器 public void setOnSettingStatusChangedListener(NoteSettingChangedListener l) { mNoteSettingStatusListener = l; } + // 设置提醒时间 public void setAlertDate(long date, boolean set) { if (date != mAlertDate) { mAlertDate = date; @@ -239,14 +242,16 @@ public class WorkingNote { } } + // 标记笔记为删除或未删除 public void markDeleted(boolean mark) { mIsDeleted = mark; if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID && mWidgetType != Notes.TYPE_WIDGET_INVALIDE && mNoteSettingStatusListener != null) { - mNoteSettingStatusListener.onWidgetChanged(); + mNoteSettingStatusListener.onWidgetChanged(); } } + // 设置背景颜色ID public void setBgColorId(int id) { if (id != mBgColorId) { mBgColorId = id; @@ -257,6 +262,7 @@ public class WorkingNote { } } + // 设置检查清单模式 public void setCheckListMode(int mode) { if (mMode != mode) { if (mNoteSettingStatusListener != null) { @@ -267,6 +273,7 @@ public class WorkingNote { } } + // 设置小部件类型 public void setWidgetType(int type) { if (type != mWidgetType) { mWidgetType = type; @@ -274,6 +281,7 @@ public class WorkingNote { } } + // 设置小部件ID public void setWidgetId(int id) { if (id != mWidgetId) { mWidgetId = id; @@ -281,6 +289,7 @@ public class WorkingNote { } } + // 设置笔记文本 public void setWorkingText(String text) { if (!TextUtils.equals(mContent, text)) { mContent = text; @@ -288,81 +297,78 @@ public class WorkingNote { } } + // 将笔记转换为通话记录笔记 public void convertToCallNote(String phoneNumber, long callDate) { mNote.setCallData(CallNote.CALL_DATE, String.valueOf(callDate)); mNote.setCallData(CallNote.PHONE_NUMBER, phoneNumber); mNote.setNoteValue(NoteColumns.PARENT_ID, String.valueOf(Notes.ID_CALL_RECORD_FOLDER)); } + // 判断是否有提醒 public boolean hasClockAlert() { - return (mAlertDate > 0 ? true : false); + return (mAlertDate > 0); } + // 获取笔记内容 public String getContent() { return mContent; } + // 获取提醒时间 public long getAlertDate() { return mAlertDate; } + // 获取笔记的修改时间 public long getModifiedDate() { return mModifiedDate; } + // 获取笔记的背景颜色资源ID public int getBgColorResId() { return NoteBgResources.getNoteBgResource(mBgColorId); } + // 获取笔记的背景颜色ID public int getBgColorId() { return mBgColorId; } + // 获取笔记标题的背景颜色资源ID public int getTitleBgResId() { return NoteBgResources.getNoteTitleBgResource(mBgColorId); } + // 获取检查清单模式 public int getCheckListMode() { return mMode; } + // 获取笔记ID public long getNoteId() { return mNoteId; } + // 获取笔记所在文件夹ID public long getFolderId() { return mFolderId; } + // 获取小部件ID public int getWidgetId() { return mWidgetId; } + // 获取小部件类型 public int getWidgetType() { return mWidgetType; } + // 笔记设置变化监听器接口 public interface NoteSettingChangedListener { - /** - * Called when the background color of current note has just changed - */ - void onBackgroundColorChanged(); - - /** - * Called when user set clock - */ - void onClockAlertChanged(long date, boolean set); - - /** - * Call when user create note from widget - */ - void onWidgetChanged(); - - /** - * Call when switch between check list mode and normal mode - * @param oldMode is previous mode before change - * @param newMode is new mode - */ - void onCheckListModeChanged(int oldMode, int newMode); + void onBackgroundColorChanged(); // 当背景颜色变化时调用 + void onClockAlertChanged(long date, boolean set); // 当提醒时间变化时调用 + void onWidgetChanged(); // 当小部件变化时调用 + void onCheckListModeChanged(int oldMode, int newMode); // 当切换模式时调用 } } diff --git a/src/net/micode/notes/tool/BackupUtils.java b/src/net/micode/notes/tool/BackupUtils.java index 39f6ec4..b98aa44 100644 --- a/src/net/micode/notes/tool/BackupUtils.java +++ b/src/net/micode/notes/tool/BackupUtils.java @@ -35,12 +35,11 @@ import java.io.FileOutputStream; import java.io.IOException; import java.io.PrintStream; - public class BackupUtils { - private static final String TAG = "BackupUtils"; - // Singleton stuff - private static BackupUtils sInstance; + private static final String TAG = "BackupUtils"; // 定义日志标签 + private static BackupUtils sInstance; // 单例模式实例 + // 获取单例实例的方法，确保整个应用中只有一个 BackupUtils 对象 public static synchronized BackupUtils getInstance(Context context) { if (sInstance == null) { sInstance = new BackupUtils(context); @@ -48,82 +47,76 @@ public class BackupUtils { return sInstance; } - /** - * Following states are signs to represents backup or restore - * status - */ - // Currently, the sdcard is not mounted - public static final int STATE_SD_CARD_UNMOUONTED = 0; - // The backup file not exist - public static final int STATE_BACKUP_FILE_NOT_EXIST = 1; - // The data is not well formated, may be changed by other programs - public static final int STATE_DATA_DESTROIED = 2; - // Some run-time exception which causes restore or backup fails - public static final int STATE_SYSTEM_ERROR = 3; - // Backup or restore success - public static final int STATE_SUCCESS = 4; - - private TextExport mTextExport; + // 定义备份和恢复状态的常量 + public static final int STATE_SD_CARD_UNMOUONTED = 0; // SD 卡未挂载 + public static final int STATE_BACKUP_FILE_NOT_EXIST = 1; // 备份文件不存在 + public static final int STATE_DATA_DESTROIED = 2; // 数据损坏 + public static final int STATE_SYSTEM_ERROR = 3; // 系统错误 + public static final int STATE_SUCCESS = 4; // 备份或恢复成功 + + private TextExport mTextExport; // 文本导出工具 private BackupUtils(Context context) { - mTextExport = new TextExport(context); + mTextExport = new TextExport(context); // 初始化 TextExport 对象 } + // 检查外部存储是否可用 private static boolean externalStorageAvailable() { return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState()); } + // 导出数据到文本文件 public int exportToText() { return mTextExport.exportToText(); } + // 获取导出的文本文件名 public String getExportedTextFileName() { return mTextExport.mFileName; } + // 获取导出的文本文件所在目录 public String getExportedTextFileDir() { return mTextExport.mFileDirectory; } + // 内部类：用于处理文本导出功能 private static class TextExport { + // 定义查询数据所需的列 private static final String[] NOTE_PROJECTION = { - NoteColumns.ID, - NoteColumns.MODIFIED_DATE, - NoteColumns.SNIPPET, - NoteColumns.TYPE + NoteColumns.ID, // 笔记ID + NoteColumns.MODIFIED_DATE, // 修改时间 + NoteColumns.SNIPPET, // 笔记的摘要 + NoteColumns.TYPE // 笔记类型 }; private static final int NOTE_COLUMN_ID = 0; - private static final int NOTE_COLUMN_MODIFIED_DATE = 1; - private static final int NOTE_COLUMN_SNIPPET = 2; private static final String[] DATA_PROJECTION = { - DataColumns.CONTENT, - DataColumns.MIME_TYPE, - DataColumns.DATA1, - DataColumns.DATA2, - DataColumns.DATA3, - DataColumns.DATA4, + DataColumns.CONTENT, // 数据内容 + DataColumns.MIME_TYPE, // MIME 类型 + DataColumns.DATA1, // 备用数据1 + DataColumns.DATA2, // 备用数据2 + DataColumns.DATA3, // 备用数据3 + DataColumns.DATA4, // 备用数据4 }; private static final int DATA_COLUMN_CONTENT = 0; - private static final int DATA_COLUMN_MIME_TYPE = 1; - private static final int DATA_COLUMN_CALL_DATE = 2; - private static final int DATA_COLUMN_PHONE_NUMBER = 4; - private final String [] TEXT_FORMAT; - private static final int FORMAT_FOLDER_NAME = 0; - private static final int FORMAT_NOTE_DATE = 1; - private static final int FORMAT_NOTE_CONTENT = 2; + // 定义文本格式化的常量 + private final String[] TEXT_FORMAT; + private static final int FORMAT_FOLDER_NAME = 0; // 文件夹名称格式 + private static final int FORMAT_NOTE_DATE = 1; // 笔记修改时间格式 + private static final int FORMAT_NOTE_CONTENT = 2; // 笔记内容格式 - private Context mContext; - private String mFileName; - private String mFileDirectory; + private Context mContext; // 上下文 + private String mFileName; // 导出的文件名 + private String mFileDirectory; // 导出文件所在目录 public TextExport(Context context) { TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note); @@ -132,104 +125,91 @@ public class BackupUtils { mFileDirectory = ""; } + // 获取格式化字符串 private String getFormat(int id) { return TEXT_FORMAT[id]; } - /** - * Export the folder identified by folder id to text - */ + // 导出文件夹下的所有笔记 private void exportFolderToText(String folderId, PrintStream ps) { - // Query notes belong to this folder + // 查询该文件夹下的所有笔记 Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI, - NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[] { - folderId - }, null); + NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[]{folderId}, null); if (notesCursor != null) { if (notesCursor.moveToFirst()) { do { - // Print note's last modified date + // 打印笔记的最后修改时间 ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format( mContext.getString(R.string.format_datetime_mdhm), notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE)))); - // Query data belong to this note + // 获取笔记的 ID String noteId = notesCursor.getString(NOTE_COLUMN_ID); - exportNoteToText(noteId, ps); + exportNoteToText(noteId, ps); // 导出笔记的内容 } while (notesCursor.moveToNext()); } notesCursor.close(); } } - /** - * Export note identified by id to a print stream - */ + // 导出指定 ID 的笔记内容 private void exportNoteToText(String noteId, PrintStream ps) { + // 查询该笔记的所有数据 Cursor dataCursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, - DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] { - noteId - }, null); + DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[]{noteId}, null); if (dataCursor != null) { if (dataCursor.moveToFirst()) { do { String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE); if (DataConstants.CALL_NOTE.equals(mimeType)) { - // Print phone number + // 如果是电话记录类型，导出电话信息 String phoneNumber = dataCursor.getString(DATA_COLUMN_PHONE_NUMBER); long callDate = dataCursor.getLong(DATA_COLUMN_CALL_DATE); String location = dataCursor.getString(DATA_COLUMN_CONTENT); if (!TextUtils.isEmpty(phoneNumber)) { - ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), - phoneNumber)); + ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), phoneNumber)); } - // Print call date - ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), DateFormat - .format(mContext.getString(R.string.format_datetime_mdhm), - callDate))); - // Print call attachment location + ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), DateFormat.format( + mContext.getString(R.string.format_datetime_mdhm), callDate))); if (!TextUtils.isEmpty(location)) { - ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), - location)); + ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), location)); } } else if (DataConstants.NOTE.equals(mimeType)) { + // 如果是普通笔记，导出笔记内容 String content = dataCursor.getString(DATA_COLUMN_CONTENT); if (!TextUtils.isEmpty(content)) { - ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), - content)); + ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), content)); } } } while (dataCursor.moveToNext()); } dataCursor.close(); } - // print a line separator between note + + // 在笔记之间添加分隔行 try { - ps.write(new byte[] { - Character.LINE_SEPARATOR, Character.LETTER_NUMBER - }); + ps.write(new byte[]{Character.LINE_SEPARATOR, Character.LETTER_NUMBER}); } catch (IOException e) { Log.e(TAG, e.toString()); } } - /** - * Note will be exported as text which is user readable - */ + // 导出为用户可读的文本格式 public int exportToText() { if (!externalStorageAvailable()) { Log.d(TAG, "Media was not mounted"); - return STATE_SD_CARD_UNMOUONTED; + return STATE_SD_CARD_UNMOUONTED; // SD 卡未挂载 } PrintStream ps = getExportToTextPrintStream(); if (ps == null) { Log.e(TAG, "get print stream error"); - return STATE_SYSTEM_ERROR; + return STATE_SYSTEM_ERROR; // 获取输出流失败 } - // First export folder and its notes + + // 导出文件夹和文件夹下的所有笔记 Cursor folderCursor = mContext.getContentResolver().query( Notes.CONTENT_NOTE_URI, NOTE_PROJECTION, @@ -240,9 +220,9 @@ public class BackupUtils { if (folderCursor != null) { if (folderCursor.moveToFirst()) { do { - // Print folder's name + // 打印文件夹名称 String folderName = ""; - if(folderCursor.getLong(NOTE_COLUMN_ID) == Notes.ID_CALL_RECORD_FOLDER) { + if (folderCursor.getLong(NOTE_COLUMN_ID) == Notes.ID_CALL_RECORD_FOLDER) { folderName = mContext.getString(R.string.call_record_folder_name); } else { folderName = folderCursor.getString(NOTE_COLUMN_SNIPPET); @@ -251,17 +231,17 @@ public class BackupUtils { ps.println(String.format(getFormat(FORMAT_FOLDER_NAME), folderName)); } String folderId = folderCursor.getString(NOTE_COLUMN_ID); - exportFolderToText(folderId, ps); + exportFolderToText(folderId, ps); // 导出该文件夹下的笔记 } while (folderCursor.moveToNext()); } folderCursor.close(); } - // Export notes in root's folder + // 导出根文件夹下的所有笔记 Cursor noteCursor = mContext.getContentResolver().query( Notes.CONTENT_NOTE_URI, NOTE_PROJECTION, - NoteColumns.TYPE + "=" + +Notes.TYPE_NOTE + " AND " + NoteColumns.PARENT_ID + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE + " AND " + NoteColumns.PARENT_ID + "=0", null, null); if (noteCursor != null) { @@ -270,34 +250,30 @@ public class BackupUtils { ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format( mContext.getString(R.string.format_datetime_mdhm), noteCursor.getLong(NOTE_COLUMN_MODIFIED_DATE)))); - // Query data belong to this note String noteId = noteCursor.getString(NOTE_COLUMN_ID); - exportNoteToText(noteId, ps); + exportNoteToText(noteId, ps); // 导出该笔记内容 } while (noteCursor.moveToNext()); } noteCursor.close(); } - ps.close(); - return STATE_SUCCESS; + ps.close(); // 关闭输出流 + return STATE_SUCCESS; // 导出成功 } - /** - * Get a print stream pointed to the file {@generateExportedTextFile} - */ + // 获取指向导出文本文件的输出流 private PrintStream getExportToTextPrintStream() { - File file = generateFileMountedOnSDcard(mContext, R.string.file_path, - R.string.file_name_txt_format); + File file = generateFileMountedOnSDcard(mContext, R.string.file_path, R.string.file_name_txt_format); if (file == null) { Log.e(TAG, "create file to exported failed"); - return null; + return null; // 创建文件失败 } mFileName = file.getName(); mFileDirectory = mContext.getString(R.string.file_path); PrintStream ps = null; try { FileOutputStream fos = new FileOutputStream(file); - ps = new PrintStream(fos); + ps = new PrintStream(fos); // 获取输出流 } catch (FileNotFoundException e) { e.printStackTrace(); return null; @@ -309,9 +285,7 @@ public class BackupUtils { } } - /** - * Generate the text file to store imported data - */ + // 生成保存导入数据的文件 private static File generateFileMountedOnSDcard(Context context, int filePathResId, int fileNameFormatResId) { StringBuilder sb = new StringBuilder(); sb.append(Environment.getExternalStorageDirectory()); @@ -320,15 +294,15 @@ public class BackupUtils { sb.append(context.getString( fileNameFormatResId, DateFormat.format(context.getString(R.string.format_date_ymd), - System.currentTimeMillis()))); + System.currentTimeMillis()))); // 文件名格式化 File file = new File(sb.toString()); try { if (!filedir.exists()) { - filedir.mkdir(); + filedir.mkdir(); // 创建目录 } if (!file.exists()) { - file.createNewFile(); + file.createNewFile(); // 创建文件 } return file; } catch (SecurityException e) { @@ -337,7 +311,7 @@ public class BackupUtils { e.printStackTrace(); } - return null; + return null; // 创建失败 } } diff --git a/src/net/micode/notes/tool/DataUtils.java b/src/net/micode/notes/tool/DataUtils.java index 2a14982..a672ed5 100644 --- a/src/net/micode/notes/tool/DataUtils.java +++ b/src/net/micode/notes/tool/DataUtils.java @@ -36,123 +36,143 @@ import java.util.HashSet; public class DataUtils { - public static final String TAG = "DataUtils"; + public static final String TAG = "DataUtils"; // 日志标签 + + // 批量删除笔记，删除给定 HashSet 中的所有笔记 public static boolean batchDeleteNotes(ContentResolver resolver, HashSet ids) { + // 检查输入的 IDs 是否为空 if (ids == null) { Log.d(TAG, "the ids is null"); - return true; + return true; // 如果没有指定 ID，认为操作成功（没有删除） } if (ids.size() == 0) { Log.d(TAG, "no id is in the hashset"); - return true; + return true; // 如果没有 IDs，认为操作成功（没有删除） } - ArrayList operationList = new ArrayList(); + ArrayList operationList = new ArrayList(); // 用于存储删除操作 + + // 遍历给定的 ID，构建删除操作 for (long id : ids) { + // 忽略删除系统根文件夹 if(id == Notes.ID_ROOT_FOLDER) { Log.e(TAG, "Don't delete system folder root"); - continue; + continue; // 跳过系统根文件夹 ID } + + // 为每个 ID 构建删除操作 ContentProviderOperation.Builder builder = ContentProviderOperation .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); - operationList.add(builder.build()); + operationList.add(builder.build()); // 将操作加入到操作列表 } + try { + // 执行批量操作 ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); if (results == null || results.length == 0 || results[0] == null) { Log.d(TAG, "delete notes failed, ids:" + ids.toString()); - return false; + return false; // 删除失败 } - return true; + return true; // 删除成功 } catch (RemoteException e) { - Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); + Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); // 捕获并记录异常 } catch (OperationApplicationException e) { - Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); + Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); // 捕获并记录异常 } - return false; + return false; // 发生异常，删除失败 } + // 将笔记从源文件夹移动到目标文件夹 public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) { ContentValues values = new ContentValues(); - values.put(NoteColumns.PARENT_ID, desFolderId); - values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId); - values.put(NoteColumns.LOCAL_MODIFIED, 1); + values.put(NoteColumns.PARENT_ID, desFolderId); // 设置新的父文件夹 ID + values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId); // 设置原始父文件夹 ID + values.put(NoteColumns.LOCAL_MODIFIED, 1); // 标记为已修改 + + // 执行更新操作 resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null); } - public static boolean batchMoveToFolder(ContentResolver resolver, HashSet ids, - long folderId) { + // 批量将笔记移动到指定文件夹 + public static boolean batchMoveToFolder(ContentResolver resolver, HashSet ids, long folderId) { + // 检查输入的 IDs 是否为空 if (ids == null) { Log.d(TAG, "the ids is null"); - return true; + return true; // 如果没有指定 ID，认为操作成功（没有移动） } - ArrayList operationList = new ArrayList(); + ArrayList operationList = new ArrayList(); // 用于存储更新操作 + + // 遍历给定的 ID，构建更新操作 for (long id : ids) { ContentProviderOperation.Builder builder = ContentProviderOperation .newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); - builder.withValue(NoteColumns.PARENT_ID, folderId); - builder.withValue(NoteColumns.LOCAL_MODIFIED, 1); - operationList.add(builder.build()); + builder.withValue(NoteColumns.PARENT_ID, folderId); // 设置目标文件夹 ID + builder.withValue(NoteColumns.LOCAL_MODIFIED, 1); // 标记为已修改 + operationList.add(builder.build()); // 将操作加入到操作列表 } try { + // 执行批量操作 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; + Log.d(TAG, "move notes failed, ids:" + ids.toString()); + return false; // 移动失败 } - return true; + return true; // 移动成功 } catch (RemoteException e) { - Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); + Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); // 捕获并记录异常 } catch (OperationApplicationException e) { - Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); + Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); // 捕获并记录异常 } - return false; + return false; // 发生异常，移动失败 } /** - * Get the all folder count except system folders {@link Notes#TYPE_SYSTEM}} + * 获取用户自定义的文件夹数量，不包括系统文件夹 */ public static int getUserFolderCount(ContentResolver resolver) { - Cursor cursor =resolver.query(Notes.CONTENT_NOTE_URI, + // 查询文件夹数量，排除系统文件夹和回收站文件夹 + Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, new String[] { "COUNT(*)" }, NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?", - new String[] { String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)}, + new String[] { String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER) }, null); int count = 0; if(cursor != null) { if(cursor.moveToFirst()) { try { - count = cursor.getInt(0); + count = cursor.getInt(0); // 获取文件夹数量 } catch (IndexOutOfBoundsException e) { - Log.e(TAG, "get folder count failed:" + e.toString()); + Log.e(TAG, "get folder count failed:" + e.toString()); // 捕获异常 } finally { - cursor.close(); + cursor.close(); // 关闭游标 } } } - return count; + return count; // 返回文件夹数量 } + // 判断笔记是否在数据库中可见（不在回收站中） public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) { Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null, NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER, - new String [] {String.valueOf(type)}, + new String[] { String.valueOf(type) }, null); boolean exist = false; if (cursor != null) { if (cursor.getCount() > 0) { - exist = true; + exist = true; // 如果查询结果非空，认为笔记存在且可见 } cursor.close(); } return exist; } + // 判断笔记是否存在于数据库中 public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) { Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null, null, null, null); @@ -160,13 +180,14 @@ public class DataUtils { boolean exist = false; if (cursor != null) { if (cursor.getCount() > 0) { - exist = true; + exist = true; // 如果查询结果非空，认为笔记存在 } cursor.close(); } return exist; } + // 判断数据是否存在于数据库中 public static boolean existInDataDatabase(ContentResolver resolver, long dataId) { Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), null, null, null, null); @@ -174,29 +195,32 @@ public class DataUtils { boolean exist = false; if (cursor != null) { if (cursor.getCount() > 0) { - exist = true; + exist = true; // 如果查询结果非空，认为数据存在 } cursor.close(); } return exist; } + // 检查指定名称的文件夹是否已经存在 public static boolean checkVisibleFolderName(ContentResolver resolver, String name) { Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, null, NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER + - " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + - " AND " + NoteColumns.SNIPPET + "=?", + " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + + " AND " + NoteColumns.SNIPPET + "=?", new String[] { name }, null); + boolean exist = false; if(cursor != null) { if(cursor.getCount() > 0) { - exist = true; + exist = true; // 如果查询结果非空，认为文件夹存在 } cursor.close(); } return exist; } + // 获取某文件夹下所有小部件的属性 public static HashSet getFolderNoteWidget(ContentResolver resolver, long folderId) { Cursor c = resolver.query(Notes.CONTENT_NOTE_URI, new String[] { NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE }, @@ -213,83 +237,87 @@ public class DataUtils { AppWidgetAttribute widget = new AppWidgetAttribute(); widget.widgetId = c.getInt(0); widget.widgetType = c.getInt(1); - set.add(widget); + set.add(widget); // 添加小部件属性到集合 } catch (IndexOutOfBoundsException e) { - Log.e(TAG, e.toString()); + Log.e(TAG, e.toString()); // 捕获异常 } } while (c.moveToNext()); } c.close(); } - return set; + return set; // 返回所有小部件属性集合 } + // 根据笔记 ID 获取通话记录中的电话号码 public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) { Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI, - new String [] { CallNote.PHONE_NUMBER }, + new String[] { CallNote.PHONE_NUMBER }, CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?", - new String [] { String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE }, + new String[] { String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE }, null); if (cursor != null && cursor.moveToFirst()) { try { - return cursor.getString(0); + return cursor.getString(0); // 获取电话号码 } catch (IndexOutOfBoundsException e) { - Log.e(TAG, "Get call number fails " + e.toString()); + Log.e(TAG, "Get call number fails " + e.toString()); // 捕获异常 } finally { - cursor.close(); + cursor.close(); // 关闭游标 } } return ""; } + // 根据电话号码和通话日期获取笔记 ID public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) { Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI, - new String [] { CallNote.NOTE_ID }, + new String[] { CallNote.NOTE_ID }, CallNote.CALL_DATE + "=? AND " + CallNote.MIME_TYPE + "=? AND PHONE_NUMBERS_EQUAL(" - + CallNote.PHONE_NUMBER + ",?)", - new String [] { String.valueOf(callDate), CallNote.CONTENT_ITEM_TYPE, phoneNumber }, + + CallNote.PHONE_NUMBER + ",?)", + new String[] { String.valueOf(callDate), CallNote.CONTENT_ITEM_TYPE, phoneNumber }, null); if (cursor != null) { if (cursor.moveToFirst()) { try { - return cursor.getLong(0); + return cursor.getLong(0); // 返回找到的笔记 ID } catch (IndexOutOfBoundsException e) { - Log.e(TAG, "Get call note id fails " + e.toString()); + Log.e(TAG, "Get call note id fails " + e.toString()); // 捕获异常 } } cursor.close(); } - return 0; + return 0; // 如果没有找到，返回 0 } + // 根据笔记 ID 获取笔记的摘要 public static String getSnippetById(ContentResolver resolver, long noteId) { Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, - new String [] { NoteColumns.SNIPPET }, + new String[] { NoteColumns.SNIPPET }, NoteColumns.ID + "=?", - new String [] { String.valueOf(noteId)}, + new String[] { String.valueOf(noteId) }, null); if (cursor != null) { String snippet = ""; if (cursor.moveToFirst()) { - snippet = cursor.getString(0); + snippet = cursor.getString(0); // 获取摘要内容 } cursor.close(); return snippet; } - throw new IllegalArgumentException("Note is not found with id: " + noteId); + throw new IllegalArgumentException("Note is not found with id: " + noteId); // 如果没有找到，抛出异常 } + // 格式化摘要，去掉换行符 public static String getFormattedSnippet(String snippet) { if (snippet != null) { - snippet = snippet.trim(); + snippet = snippet.trim(); // 去掉空格 int index = snippet.indexOf('\n'); if (index != -1) { - snippet = snippet.substring(0, index); + snippet = snippet.substring(0, index); // 去掉换行符后的内容 } } - return snippet; + return snippet; // 返回格式化后的摘要 } } diff --git a/src/net/micode/notes/tool/GTaskStringUtils.java b/src/net/micode/notes/tool/GTaskStringUtils.java index 666b729..2154f81 100644 --- a/src/net/micode/notes/tool/GTaskStringUtils.java +++ b/src/net/micode/notes/tool/GTaskStringUtils.java @@ -18,96 +18,132 @@ package net.micode.notes.tool; public class GTaskStringUtils { + // GTASK 相关的 JSON 字段名常量 + + // action_id - 操作的唯一标识符 public final static String GTASK_JSON_ACTION_ID = "action_id"; + // action_list - 用于存储多个操作的列表 public final static String GTASK_JSON_ACTION_LIST = "action_list"; + // action_type - 操作的类型 public final static String GTASK_JSON_ACTION_TYPE = "action_type"; - public final static String GTASK_JSON_ACTION_TYPE_CREATE = "create"; - - public final static String GTASK_JSON_ACTION_TYPE_GETALL = "get_all"; - - public final static String GTASK_JSON_ACTION_TYPE_MOVE = "move"; - - public final static String GTASK_JSON_ACTION_TYPE_UPDATE = "update"; + // 操作类型常量 + public final static String GTASK_JSON_ACTION_TYPE_CREATE = "create"; // 创建任务 + public final static String GTASK_JSON_ACTION_TYPE_GETALL = "get_all"; // 获取所有任务 + public final static String GTASK_JSON_ACTION_TYPE_MOVE = "move"; // 移动任务 + public final static String GTASK_JSON_ACTION_TYPE_UPDATE = "update"; // 更新任务 + // creator_id - 创建者的 ID public final static String GTASK_JSON_CREATOR_ID = "creator_id"; + // child_entity - 子任务实体 public final static String GTASK_JSON_CHILD_ENTITY = "child_entity"; + // client_version - 客户端版本 public final static String GTASK_JSON_CLIENT_VERSION = "client_version"; + // completed - 任务是否完成 public final static String GTASK_JSON_COMPLETED = "completed"; + // current_list_id - 当前任务所属的列表 ID public final static String GTASK_JSON_CURRENT_LIST_ID = "current_list_id"; + // default_list_id - 默认任务列表 ID public final static String GTASK_JSON_DEFAULT_LIST_ID = "default_list_id"; + // deleted - 任务是否被删除 public final static String GTASK_JSON_DELETED = "deleted"; + // dest_list - 目标任务列表 public final static String GTASK_JSON_DEST_LIST = "dest_list"; + // dest_parent - 目标任务父级 ID public final static String GTASK_JSON_DEST_PARENT = "dest_parent"; + // dest_parent_type - 目标任务父级类型 public final static String GTASK_JSON_DEST_PARENT_TYPE = "dest_parent_type"; + // entity_delta - 实体增量数据 public final static String GTASK_JSON_ENTITY_DELTA = "entity_delta"; + // entity_type - 实体类型（如任务或文件夹） public final static String GTASK_JSON_ENTITY_TYPE = "entity_type"; + // get_deleted - 获取已删除的任务 public final static String GTASK_JSON_GET_DELETED = "get_deleted"; + // id - 任务或实体的 ID public final static String GTASK_JSON_ID = "id"; + // index - 任务在列表中的索引位置 public final static String GTASK_JSON_INDEX = "index"; + // last_modified - 上次修改时间 public final static String GTASK_JSON_LAST_MODIFIED = "last_modified"; + // latest_sync_point - 最新同步点 public final static String GTASK_JSON_LATEST_SYNC_POINT = "latest_sync_point"; + // list_id - 任务所属列表的 ID public final static String GTASK_JSON_LIST_ID = "list_id"; + // lists - 任务列表集合 public final static String GTASK_JSON_LISTS = "lists"; + // name - 任务的名称 public final static String GTASK_JSON_NAME = "name"; + // new_id - 新生成的 ID public final static String GTASK_JSON_NEW_ID = "new_id"; + // notes - 任务的备注 public final static String GTASK_JSON_NOTES = "notes"; + // parent_id - 任务父级的 ID public final static String GTASK_JSON_PARENT_ID = "parent_id"; + // prior_sibling_id - 任务的前一个兄弟任务 ID public final static String GTASK_JSON_PRIOR_SIBLING_ID = "prior_sibling_id"; + // results - 查询结果 public final static String GTASK_JSON_RESULTS = "results"; + // source_list - 源任务列表 public final static String GTASK_JSON_SOURCE_LIST = "source_list"; + // tasks - 任务集合 public final static String GTASK_JSON_TASKS = "tasks"; + // type - 任务类型 public final static String GTASK_JSON_TYPE = "type"; - public final static String GTASK_JSON_TYPE_GROUP = "GROUP"; - - public final static String GTASK_JSON_TYPE_TASK = "TASK"; + // type 常量 + public final static String GTASK_JSON_TYPE_GROUP = "GROUP"; // 任务组类型 + public final static String GTASK_JSON_TYPE_TASK = "TASK"; // 任务类型 + // user - 用户信息 public final static String GTASK_JSON_USER = "user"; + // MIUI 文件夹前缀，用于 MIUI 系统 public final static String MIUI_FOLDER_PREFFIX = "[MIUI_Notes]"; + // 默认文件夹名称 public final static String FOLDER_DEFAULT = "Default"; + // 通话记录文件夹名称 public final static String FOLDER_CALL_NOTE = "Call_Note"; + // 元数据文件夹名称 public final static String FOLDER_META = "METADATA"; - public final static String META_HEAD_GTASK_ID = "meta_gid"; - - public final static String META_HEAD_NOTE = "meta_note"; - - public final static String META_HEAD_DATA = "meta_data"; + // 元数据字段常量 + public final static String META_HEAD_GTASK_ID = "meta_gid"; // GTASK ID + public final static String META_HEAD_NOTE = "meta_note"; // 笔记 + public final static String META_HEAD_DATA = "meta_data"; // 数据 + // 特殊的元数据笔记名称，不允许更新和删除 public final static String META_NOTE_NAME = "[META INFO] DON'T UPDATE AND DELETE"; } diff --git a/src/net/micode/notes/tool/ResourceParser.java b/src/net/micode/notes/tool/ResourceParser.java index 1ad3ad6..b47d650 100644 --- a/src/net/micode/notes/tool/ResourceParser.java +++ b/src/net/micode/notes/tool/ResourceParser.java @@ -24,158 +24,187 @@ import net.micode.notes.ui.NotesPreferenceActivity; public class ResourceParser { - public static final int YELLOW = 0; - public static final int BLUE = 1; - public static final int WHITE = 2; - public static final int GREEN = 3; - public static final int RED = 4; - + // 定义笔记背景颜色的常量 + public static final int YELLOW = 0; // 黄色 + public static final int BLUE = 1; // 蓝色 + public static final int WHITE = 2; // 白色 + public static final int GREEN = 3; // 绿色 + public static final int RED = 4; // 红色 + + // 默认背景颜色为黄色 public static final int BG_DEFAULT_COLOR = YELLOW; - public static final int TEXT_SMALL = 0; - public static final int TEXT_MEDIUM = 1; - public static final int TEXT_LARGE = 2; - public static final int TEXT_SUPER = 3; + // 定义字体大小的常量 + public static final int TEXT_SMALL = 0; // 小号字体 + public static final int TEXT_MEDIUM = 1; // 中号字体 + public static final int TEXT_LARGE = 2; // 大号字体 + public static final int TEXT_SUPER = 3; // 超大号字体 + // 默认字体大小为中号 public static final int BG_DEFAULT_FONT_SIZE = TEXT_MEDIUM; + // 处理笔记背景资源的内部类 public static class NoteBgResources { - private final static int [] BG_EDIT_RESOURCES = new int [] { - R.drawable.edit_yellow, - R.drawable.edit_blue, - R.drawable.edit_white, - R.drawable.edit_green, - R.drawable.edit_red + // 编辑模式下的背景资源 + private final static int[] BG_EDIT_RESOURCES = new int[] { + R.drawable.edit_yellow, // 黄色背景 + R.drawable.edit_blue, // 蓝色背景 + R.drawable.edit_white, // 白色背景 + R.drawable.edit_green, // 绿色背景 + R.drawable.edit_red // 红色背景 }; - private final static int [] BG_EDIT_TITLE_RESOURCES = new int [] { - R.drawable.edit_title_yellow, - R.drawable.edit_title_blue, - R.drawable.edit_title_white, - R.drawable.edit_title_green, - R.drawable.edit_title_red + // 编辑模式下标题的背景资源 + private final static int[] BG_EDIT_TITLE_RESOURCES = new int[] { + R.drawable.edit_title_yellow, // 黄色标题 + R.drawable.edit_title_blue, // 蓝色标题 + R.drawable.edit_title_white, // 白色标题 + R.drawable.edit_title_green, // 绿色标题 + R.drawable.edit_title_red // 红色标题 }; + // 根据颜色ID获取笔记背景资源 public static int getNoteBgResource(int id) { return BG_EDIT_RESOURCES[id]; } + // 根据颜色ID获取笔记标题背景资源 public static int getNoteTitleBgResource(int id) { return BG_EDIT_TITLE_RESOURCES[id]; } } + // 获取默认背景ID（如果用户在设置中启用了背景颜色，返回随机颜色ID） public static int getDefaultBgId(Context context) { + // 从 SharedPreferences 中获取用户设置的背景颜色 if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean( NotesPreferenceActivity.PREFERENCE_SET_BG_COLOR_KEY, false)) { + // 随机返回一个背景颜色ID return (int) (Math.random() * NoteBgResources.BG_EDIT_RESOURCES.length); } else { + // 返回默认背景颜色ID return BG_DEFAULT_COLOR; } } + // 处理笔记项背景资源的内部类 public static class NoteItemBgResources { - private final static int [] BG_FIRST_RESOURCES = new int [] { - R.drawable.list_yellow_up, - R.drawable.list_blue_up, - R.drawable.list_white_up, - R.drawable.list_green_up, - R.drawable.list_red_up + // 第一项（列表顶部）的背景资源 + private final static int[] BG_FIRST_RESOURCES = new int[] { + R.drawable.list_yellow_up, // 黄色背景 + R.drawable.list_blue_up, // 蓝色背景 + R.drawable.list_white_up, // 白色背景 + R.drawable.list_green_up, // 绿色背景 + R.drawable.list_red_up // 红色背景 }; - private final static int [] BG_NORMAL_RESOURCES = new int [] { - R.drawable.list_yellow_middle, - R.drawable.list_blue_middle, - R.drawable.list_white_middle, - R.drawable.list_green_middle, - R.drawable.list_red_middle + // 正常项（中间项）的背景资源 + private final static int[] BG_NORMAL_RESOURCES = new int[] { + R.drawable.list_yellow_middle, // 黄色背景 + R.drawable.list_blue_middle, // 蓝色背景 + R.drawable.list_white_middle, // 白色背景 + R.drawable.list_green_middle, // 绿色背景 + R.drawable.list_red_middle // 红色背景 }; - private final static int [] BG_LAST_RESOURCES = new int [] { - R.drawable.list_yellow_down, - R.drawable.list_blue_down, - R.drawable.list_white_down, - R.drawable.list_green_down, - R.drawable.list_red_down, + // 最后一项（列表底部）的背景资源 + private final static int[] BG_LAST_RESOURCES = new int[] { + R.drawable.list_yellow_down, // 黄色背景 + R.drawable.list_blue_down, // 蓝色背景 + R.drawable.list_white_down, // 白色背景 + R.drawable.list_green_down, // 绿色背景 + R.drawable.list_red_down // 红色背景 }; - private final static int [] BG_SINGLE_RESOURCES = new int [] { - R.drawable.list_yellow_single, - R.drawable.list_blue_single, - R.drawable.list_white_single, - R.drawable.list_green_single, - R.drawable.list_red_single + // 单独项（只有一个项）的背景资源 + private final static int[] BG_SINGLE_RESOURCES = new int[] { + R.drawable.list_yellow_single, // 黄色背景 + R.drawable.list_blue_single, // 蓝色背景 + R.drawable.list_white_single, // 白色背景 + R.drawable.list_green_single, // 绿色背景 + R.drawable.list_red_single // 红色背景 }; + // 根据颜色ID获取笔记项的第一项背景资源 public static int getNoteBgFirstRes(int id) { return BG_FIRST_RESOURCES[id]; } + // 根据颜色ID获取笔记项的最后一项背景资源 public static int getNoteBgLastRes(int id) { return BG_LAST_RESOURCES[id]; } + // 根据颜色ID获取单独项的背景资源 public static int getNoteBgSingleRes(int id) { return BG_SINGLE_RESOURCES[id]; } + // 根据颜色ID获取笔记项的正常背景资源 public static int getNoteBgNormalRes(int id) { return BG_NORMAL_RESOURCES[id]; } + // 获取文件夹背景资源 public static int getFolderBgRes() { return R.drawable.list_folder; } } + // 处理小部件背景资源的内部类 public static class WidgetBgResources { - private final static int [] BG_2X_RESOURCES = new int [] { - R.drawable.widget_2x_yellow, - R.drawable.widget_2x_blue, - R.drawable.widget_2x_white, - R.drawable.widget_2x_green, - R.drawable.widget_2x_red, + // 2x 小部件的背景资源 + private final static int[] BG_2X_RESOURCES = new int[] { + R.drawable.widget_2x_yellow, // 黄色背景 + R.drawable.widget_2x_blue, // 蓝色背景 + R.drawable.widget_2x_white, // 白色背景 + R.drawable.widget_2x_green, // 绿色背景 + R.drawable.widget_2x_red // 红色背景 }; + // 根据颜色ID获取2x小部件的背景资源 public static int getWidget2xBgResource(int id) { return BG_2X_RESOURCES[id]; } - private final static int [] BG_4X_RESOURCES = new int [] { - R.drawable.widget_4x_yellow, - R.drawable.widget_4x_blue, - R.drawable.widget_4x_white, - R.drawable.widget_4x_green, - R.drawable.widget_4x_red + // 4x 小部件的背景资源 + private final static int[] BG_4X_RESOURCES = new int[] { + R.drawable.widget_4x_yellow, // 黄色背景 + R.drawable.widget_4x_blue, // 蓝色背景 + R.drawable.widget_4x_white, // 白色背景 + R.drawable.widget_4x_green, // 绿色背景 + R.drawable.widget_4x_red // 红色背景 }; + // 根据颜色ID获取4x小部件的背景资源 public static int getWidget4xBgResource(int id) { return BG_4X_RESOURCES[id]; } } + // 处理文本外观资源的内部类 public static class TextAppearanceResources { - private final static int [] TEXTAPPEARANCE_RESOURCES = new int [] { - R.style.TextAppearanceNormal, - R.style.TextAppearanceMedium, - R.style.TextAppearanceLarge, - R.style.TextAppearanceSuper + // 文本外观样式资源 + private final static int[] TEXTAPPEARANCE_RESOURCES = new int[] { + R.style.TextAppearanceNormal, // 普通样式 + R.style.TextAppearanceMedium, // 中号样式 + R.style.TextAppearanceLarge, // 大号样式 + R.style.TextAppearanceSuper // 超大号样式 }; + // 根据字体大小ID获取相应的文本样式资源 public static int getTexAppearanceResource(int id) { - /** - * HACKME: Fix bug of store the resource id in shared preference. - * The id may larger than the length of resources, in this case, - * return the {@link ResourceParser#BG_DEFAULT_FONT_SIZE} - */ + // 修复BUG：防止将大于资源数组长度的ID存储到 SharedPreferences 中 if (id >= TEXTAPPEARANCE_RESOURCES.length) { - return BG_DEFAULT_FONT_SIZE; + return BG_DEFAULT_FONT_SIZE; // 返回默认字体大小 } return TEXTAPPEARANCE_RESOURCES[id]; } + // 获取字体样式资源的数量 public static int getResourcesSize() { return TEXTAPPEARANCE_RESOURCES.length; } } } + diff --git a/src/net/micode/notes/ui/AlarmAlertActivity.java b/src/net/micode/notes/ui/AlarmAlertActivity.java index 85723be..4e1e85d 100644 --- a/src/net/micode/notes/ui/AlarmAlertActivity.java +++ b/src/net/micode/notes/ui/AlarmAlertActivity.java @@ -39,21 +39,26 @@ import net.micode.notes.tool.DataUtils; import java.io.IOException; - public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener { - private long mNoteId; - private String mSnippet; - private static final int SNIPPET_PREW_MAX_LEN = 60; - MediaPlayer mPlayer; + private long mNoteId; // 当前提醒相关的笔记 ID + private String mSnippet; // 笔记的片段内容（用于提醒内容） + private static final int SNIPPET_PREW_MAX_LEN = 60; // 片段内容的最大长度 + MediaPlayer mPlayer; // 媒体播放器，用于播放提醒声音 @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); + + // 设置没有标题 requestWindowFeature(Window.FEATURE_NO_TITLE); + // 获取当前窗口对象 final Window win = getWindow(); + + // 设置窗口标志，让窗口在锁屏时也能显示 win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED); + // 如果屏幕是关闭状态，保持屏幕常亮，并打开屏幕 if (!isScreenOn()) { win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON @@ -61,11 +66,15 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR); } + // 获取启动此活动的 Intent Intent intent = getIntent(); try { + // 从 URI 中提取笔记 ID mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1)); + // 获取笔记片段内容 mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId); + // 如果片段内容过长，截取并添加提示 mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0, SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info) : mSnippet; @@ -74,85 +83,93 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD return; } + // 初始化媒体播放器 mPlayer = new MediaPlayer(); + // 检查该笔记是否有效（存在且可见） if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) { + // 显示对话框并播放警报声音 showActionDialog(); playAlarmSound(); } else { - finish(); + finish(); // 如果笔记无效，结束活动 } } + // 检查屏幕是否处于开启状态 private boolean isScreenOn() { PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE); return pm.isScreenOn(); } + // 播放警报声音 private void playAlarmSound() { + // 获取默认的警报铃声 URI Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM); + // 获取当前静音模式下影响的音频流设置 int silentModeStreams = Settings.System.getInt(getContentResolver(), Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0); + // 如果设置了静音影响警报流，则使用此流类型 if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) { mPlayer.setAudioStreamType(silentModeStreams); } else { mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM); } + try { + // 设置数据源并准备播放 mPlayer.setDataSource(this, url); mPlayer.prepare(); - mPlayer.setLooping(true); - mPlayer.start(); - } catch (IllegalArgumentException e) { - // TODO Auto-generated catch block - e.printStackTrace(); - } catch (SecurityException e) { - // TODO Auto-generated catch block - e.printStackTrace(); - } catch (IllegalStateException e) { - // TODO Auto-generated catch block - e.printStackTrace(); - } catch (IOException e) { - // TODO Auto-generated catch block - e.printStackTrace(); + mPlayer.setLooping(true); // 设置为循环播放 + mPlayer.start(); // 开始播放声音 + } catch (IllegalArgumentException | SecurityException | IllegalStateException | IOException e) { + e.printStackTrace(); // 捕获并打印异常 } } + // 显示操作对话框 private void showActionDialog() { AlertDialog.Builder dialog = new AlertDialog.Builder(this); - dialog.setTitle(R.string.app_name); - dialog.setMessage(mSnippet); - dialog.setPositiveButton(R.string.notealert_ok, this); + dialog.setTitle(R.string.app_name); // 设置对话框标题 + dialog.setMessage(mSnippet); // 设置对话框内容为笔记片段 + dialog.setPositiveButton(R.string.notealert_ok, this); // 设置“确定”按钮 + // 如果屏幕是开启状态，则显示“进入”按钮 if (isScreenOn()) { dialog.setNegativeButton(R.string.notealert_enter, this); } + // 显示对话框并设置“取消”监听器 dialog.show().setOnDismissListener(this); } + // 按钮点击事件处理 public void onClick(DialogInterface dialog, int which) { switch (which) { case DialogInterface.BUTTON_NEGATIVE: + // 当点击“进入”按钮时，跳转到笔记编辑页面 Intent intent = new Intent(this, NoteEditActivity.class); intent.setAction(Intent.ACTION_VIEW); - intent.putExtra(Intent.EXTRA_UID, mNoteId); - startActivity(intent); + intent.putExtra(Intent.EXTRA_UID, mNoteId); // 传递笔记 ID + startActivity(intent); // 启动编辑活动 break; default: break; } } + // 对话框关闭时的处理 public void onDismiss(DialogInterface dialog) { - stopAlarmSound(); - finish(); + stopAlarmSound(); // 停止播放警报声音 + finish(); // 结束当前活动 } + // 停止警报声音 private void stopAlarmSound() { if (mPlayer != null) { - mPlayer.stop(); - mPlayer.release(); - mPlayer = null; + mPlayer.stop(); // 停止播放 + mPlayer.release(); // 释放播放器资源 + mPlayer = null; // 设置播放器为 null } } } + diff --git a/src/net/micode/notes/ui/AlarmInitReceiver.java b/src/net/micode/notes/ui/AlarmInitReceiver.java index f221202..5478dbe 100644 --- a/src/net/micode/notes/ui/AlarmInitReceiver.java +++ b/src/net/micode/notes/ui/AlarmInitReceiver.java @@ -30,35 +30,49 @@ import net.micode.notes.data.Notes.NoteColumns; public class AlarmInitReceiver extends BroadcastReceiver { + // 定义查询笔记的列，只查询 ID 和 ALERTED_DATE private static final String [] PROJECTION = new String [] { - NoteColumns.ID, - NoteColumns.ALERTED_DATE + NoteColumns.ID, // 笔记 ID + NoteColumns.ALERTED_DATE // 警报时间（即提醒时间） }; - private static final int COLUMN_ID = 0; - private static final int COLUMN_ALERTED_DATE = 1; + // 对应查询结果的列索引 + private static final int COLUMN_ID = 0; // 笔记 ID 列索引 + private static final int COLUMN_ALERTED_DATE = 1; // 警报时间列索引 + // 当广播接收时触发此方法 @Override public void onReceive(Context context, Intent intent) { + // 获取当前时间 long currentDate = System.currentTimeMillis(); + + // 查询数据库中需要触发警报的笔记，警报时间大于当前时间的笔记 Cursor c = context.getContentResolver().query(Notes.CONTENT_NOTE_URI, - PROJECTION, - NoteColumns.ALERTED_DATE + ">? AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE, - new String[] { String.valueOf(currentDate) }, - null); + PROJECTION, // 查询的列 + NoteColumns.ALERTED_DATE + ">? AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE, // 查询条件，警报时间 > 当前时间，且是笔记类型 + new String[] { String.valueOf(currentDate) }, // 条件中的当前时间 + null); // 不需要排序 + // 如果查询结果不为空 if (c != null) { + // 如果查询结果有数据 if (c.moveToFirst()) { do { + // 获取警报时间 long alertDate = c.getLong(COLUMN_ALERTED_DATE); + // 创建一个新的 Intent，用于广播 AlarmReceiver Intent sender = new Intent(context, AlarmReceiver.class); + // 设置 Intent 的数据为当前笔记的 URI sender.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, c.getLong(COLUMN_ID))); + // 创建一个 PendingIntent，用于设置警报 PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, sender, 0); - AlarmManager alermManager = (AlarmManager) context - .getSystemService(Context.ALARM_SERVICE); + // 获取 AlarmManager 实例 + AlarmManager alermManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); + // 设置警报：在指定时间触发广播 alermManager.set(AlarmManager.RTC_WAKEUP, alertDate, pendingIntent); - } while (c.moveToNext()); + } while (c.moveToNext()); // 如果还有下一条记录，继续处理 } + // 关闭数据库游标 c.close(); } } diff --git a/src/net/micode/notes/ui/AlarmReceiver.java b/src/net/micode/notes/ui/AlarmReceiver.java index 54e503b..0fbf01d 100644 --- a/src/net/micode/notes/ui/AlarmReceiver.java +++ b/src/net/micode/notes/ui/AlarmReceiver.java @@ -23,8 +23,11 @@ import android.content.Intent; public class AlarmReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { + // 设置要启动的活动为 AlarmAlertActivity intent.setClass(context, AlarmAlertActivity.class); + // 设置启动活动时的标志，使得该活动会启动新的任务栈 intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); + // 启动活动 context.startActivity(intent); } } diff --git a/src/net/micode/notes/ui/DateTimePicker.java b/src/net/micode/notes/ui/DateTimePicker.java index 496b0cd..2b825ab 100644 --- a/src/net/micode/notes/ui/DateTimePicker.java +++ b/src/net/micode/notes/ui/DateTimePicker.java @@ -21,7 +21,6 @@ import java.util.Calendar; import net.micode.notes.R; - import android.content.Context; import android.text.format.DateFormat; import android.view.View; @@ -30,11 +29,11 @@ import android.widget.NumberPicker; public class DateTimePicker extends FrameLayout { + // 常量定义，帮助配置日期、时间、小时和分钟的范围 private static final boolean DEFAULT_ENABLE_STATE = true; - - private static final int HOURS_IN_HALF_DAY = 12; - private static final int HOURS_IN_ALL_DAY = 24; - private static final int DAYS_IN_ALL_WEEK = 7; + private static final int HOURS_IN_HALF_DAY = 12; // 半天的小时数 + private static final int HOURS_IN_ALL_DAY = 24; // 全天的小时数 + private static final int DAYS_IN_ALL_WEEK = 7; // 一周的天数 private static final int DATE_SPINNER_MIN_VAL = 0; private static final int DATE_SPINNER_MAX_VAL = DAYS_IN_ALL_WEEK - 1; private static final int HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW = 0; @@ -46,61 +45,60 @@ public class DateTimePicker extends FrameLayout { private static final int AMPM_SPINNER_MIN_VAL = 0; private static final int AMPM_SPINNER_MAX_VAL = 1; + // NumberPicker 控件，用于选择日期、小时、分钟、AM/PM private final NumberPicker mDateSpinner; private final NumberPicker mHourSpinner; private final NumberPicker mMinuteSpinner; private final NumberPicker mAmPmSpinner; - private Calendar mDate; - - private String[] mDateDisplayValues = new String[DAYS_IN_ALL_WEEK]; - - private boolean mIsAm; - private boolean mIs24HourView; - - private boolean mIsEnabled = DEFAULT_ENABLE_STATE; - - private boolean mInitialising; - - private OnDateTimeChangedListener mOnDateTimeChangedListener; + private Calendar mDate; // 当前日期和时间 + private String[] mDateDisplayValues = new String[DAYS_IN_ALL_WEEK]; // 显示的日期值 + private boolean mIsAm; // 当前是否为 AM + private boolean mIs24HourView; // 是否为 24 小时制 + private boolean mIsEnabled = DEFAULT_ENABLE_STATE; // 控件是否启用 + private boolean mInitialising; // 是否在初始化中 + private OnDateTimeChangedListener mOnDateTimeChangedListener; // 日期时间变化的回调 + // 日期选择器的监听器 private NumberPicker.OnValueChangeListener mOnDateChangedListener = new NumberPicker.OnValueChangeListener() { @Override public void onValueChange(NumberPicker picker, int oldVal, int newVal) { - mDate.add(Calendar.DAY_OF_YEAR, newVal - oldVal); - updateDateControl(); - onDateTimeChanged(); + mDate.add(Calendar.DAY_OF_YEAR, newVal - oldVal); // 更新日期 + updateDateControl(); // 更新日期控件显示 + onDateTimeChanged(); // 通知日期时间变化 } }; + // 小时选择器的监听器 private NumberPicker.OnValueChangeListener mOnHourChangedListener = new NumberPicker.OnValueChangeListener() { @Override public void onValueChange(NumberPicker picker, int oldVal, int newVal) { boolean isDateChanged = false; Calendar cal = Calendar.getInstance(); + // 如果是12小时制 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); + cal.add(Calendar.DAY_OF_YEAR, 1); // 增加一天 isDateChanged = true; } else if (mIsAm && oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) { cal.setTimeInMillis(mDate.getTimeInMillis()); - cal.add(Calendar.DAY_OF_YEAR, -1); + cal.add(Calendar.DAY_OF_YEAR, -1); // 减少一天 isDateChanged = true; } if (oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY || oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) { - mIsAm = !mIsAm; - updateAmPmControl(); + mIsAm = !mIsAm; // 切换 AM 和 PM + updateAmPmControl(); // 更新 AM/PM 控件 } } else { if (oldVal == HOURS_IN_ALL_DAY - 1 && newVal == 0) { cal.setTimeInMillis(mDate.getTimeInMillis()); - cal.add(Calendar.DAY_OF_YEAR, 1); + cal.add(Calendar.DAY_OF_YEAR, 1); // 增加一天 isDateChanged = true; } else if (oldVal == 0 && newVal == HOURS_IN_ALL_DAY - 1) { cal.setTimeInMillis(mDate.getTimeInMillis()); - cal.add(Calendar.DAY_OF_YEAR, -1); + cal.add(Calendar.DAY_OF_YEAR, -1); // 减少一天 isDateChanged = true; } } @@ -115,12 +113,14 @@ public class DateTimePicker extends FrameLayout { } }; + // 分钟选择器的监听器 private NumberPicker.OnValueChangeListener mOnMinuteChangedListener = new NumberPicker.OnValueChangeListener() { @Override public void onValueChange(NumberPicker picker, int oldVal, int newVal) { int minValue = mMinuteSpinner.getMinValue(); int maxValue = mMinuteSpinner.getMaxValue(); int offset = 0; + // 如果分钟数超出范围，则更新小时数 if (oldVal == maxValue && newVal == minValue) { offset += 1; } else if (oldVal == minValue && newVal == maxValue) { @@ -128,41 +128,44 @@ public class DateTimePicker extends FrameLayout { } if (offset != 0) { mDate.add(Calendar.HOUR_OF_DAY, offset); - mHourSpinner.setValue(getCurrentHour()); - updateDateControl(); + mHourSpinner.setValue(getCurrentHour()); // 更新小时选择器的值 + updateDateControl(); // 更新日期控件 int newHour = getCurrentHourOfDay(); if (newHour >= HOURS_IN_HALF_DAY) { - mIsAm = false; + mIsAm = false; // 更新 AM/PM 状态 updateAmPmControl(); } else { mIsAm = true; updateAmPmControl(); } } - mDate.set(Calendar.MINUTE, newVal); + mDate.set(Calendar.MINUTE, newVal); // 更新分钟 onDateTimeChanged(); } }; + // AM/PM 选择器的监听器 private NumberPicker.OnValueChangeListener mOnAmPmChangedListener = new NumberPicker.OnValueChangeListener() { @Override public void onValueChange(NumberPicker picker, int oldVal, int newVal) { - mIsAm = !mIsAm; + mIsAm = !mIsAm; // 切换 AM 和 PM if (mIsAm) { - mDate.add(Calendar.HOUR_OF_DAY, -HOURS_IN_HALF_DAY); + mDate.add(Calendar.HOUR_OF_DAY, -HOURS_IN_HALF_DAY); // AM 时，减少 12 小时 } else { - mDate.add(Calendar.HOUR_OF_DAY, HOURS_IN_HALF_DAY); + mDate.add(Calendar.HOUR_OF_DAY, HOURS_IN_HALF_DAY); // PM 时，增加 12 小时 } - updateAmPmControl(); + updateAmPmControl(); // 更新 AM/PM 控件 onDateTimeChanged(); } }; + // 日期时间变化的回调接口 public interface OnDateTimeChangedListener { void onDateTimeChanged(DateTimePicker view, int year, int month, - int dayOfMonth, int hourOfDay, int minute); + int dayOfMonth, int hourOfDay, int minute); } + // 构造函数，初始化控件 public DateTimePicker(Context context) { this(context, System.currentTimeMillis()); } @@ -178,19 +181,21 @@ public class DateTimePicker extends FrameLayout { mIsAm = getCurrentHourOfDay() >= HOURS_IN_HALF_DAY; inflate(context, R.layout.datetime_picker, this); - mDateSpinner = (NumberPicker) findViewById(R.id.date); + mDateSpinner = (NumberPicker) findViewById(R.id.date); // 日期选择器 mDateSpinner.setMinValue(DATE_SPINNER_MIN_VAL); mDateSpinner.setMaxValue(DATE_SPINNER_MAX_VAL); mDateSpinner.setOnValueChangedListener(mOnDateChangedListener); - mHourSpinner = (NumberPicker) findViewById(R.id.hour); + mHourSpinner = (NumberPicker) findViewById(R.id.hour); // 小时选择器 mHourSpinner.setOnValueChangedListener(mOnHourChangedListener); - mMinuteSpinner = (NumberPicker) findViewById(R.id.minute); + + mMinuteSpinner = (NumberPicker) findViewById(R.id.minute); // 分钟选择器 mMinuteSpinner.setMinValue(MINUT_SPINNER_MIN_VAL); mMinuteSpinner.setMaxValue(MINUT_SPINNER_MAX_VAL); mMinuteSpinner.setOnLongPressUpdateInterval(100); mMinuteSpinner.setOnValueChangedListener(mOnMinuteChangedListener); + // AM/PM选择器 String[] stringsForAmPm = new DateFormatSymbols().getAmPmStrings(); mAmPmSpinner = (NumberPicker) findViewById(R.id.amPm); mAmPmSpinner.setMinValue(AMPM_SPINNER_MIN_VAL); @@ -198,22 +203,22 @@ public class DateTimePicker extends FrameLayout { mAmPmSpinner.setDisplayedValues(stringsForAmPm); mAmPmSpinner.setOnValueChangedListener(mOnAmPmChangedListener); - // update controls to initial state + // 更新控件为初始状态 updateDateControl(); updateHourControl(); updateAmPmControl(); - set24HourView(is24HourView); + set24HourView(is24HourView); // 设置是否为 24 小时制 - // set to current time + // 设置当前时间 setCurrentDate(date); - setEnabled(isEnabled()); + setEnabled(isEnabled()); // 设置控件是否启用 - // set the content descriptions mInitialising = false; } + // 设置控件是否启用 @Override public void setEnabled(boolean enabled) { if (mIsEnabled == enabled) { @@ -227,25 +232,12 @@ public class DateTimePicker extends FrameLayout { mIsEnabled = enabled; } - @Override - public boolean isEnabled() { - return mIsEnabled; - } - - /** - * Get the current date in millis - * - * @return the current date in millis - */ + // 获取当前日期时间的毫秒值 public long getCurrentDateInTimeMillis() { return mDate.getTimeInMillis(); } - /** - * Set the current date - * - * @param date The current date in millis - */ + // 设置当前时间 public void setCurrentDate(long date) { Calendar cal = Calendar.getInstance(); cal.setTimeInMillis(date); @@ -253,17 +245,9 @@ public class DateTimePicker extends FrameLayout { cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE)); } - /** - * Set the current date - * - * @param year The current year - * @param month The current month - * @param dayOfMonth The current dayOfMonth - * @param hourOfDay The current hourOfDay - * @param minute The current minute - */ + // 设置当前日期和时间 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); @@ -271,20 +255,12 @@ public class DateTimePicker extends FrameLayout { setCurrentMinute(minute); } - /** - * Get current year - * - * @return The current year - */ + // 获取当前年份 public int getCurrentYear() { return mDate.get(Calendar.YEAR); } - /** - * Set current year - * - * @param year The current year - */ + // 设置当前年份 public void setCurrentYear(int year) { if (!mInitialising && year == getCurrentYear()) { return; @@ -294,20 +270,12 @@ public class DateTimePicker extends FrameLayout { onDateTimeChanged(); } - /** - * Get current month in the year - * - * @return The current month in the year - */ + // 获取当前月份 public int getCurrentMonth() { return mDate.get(Calendar.MONTH); } - /** - * Set current month in the year - * - * @param month The month in the year - */ + // 设置当前月份 public void setCurrentMonth(int month) { if (!mInitialising && month == getCurrentMonth()) { return; @@ -317,20 +285,12 @@ public class DateTimePicker extends FrameLayout { onDateTimeChanged(); } - /** - * Get current day of the month - * - * @return The day of the month - */ + // 获取当前日期 public int getCurrentDay() { return mDate.get(Calendar.DAY_OF_MONTH); } - /** - * Set current day of the month - * - * @param dayOfMonth The day of the month - */ + // 设置当前日期 public void setCurrentDay(int dayOfMonth) { if (!mInitialising && dayOfMonth == getCurrentDay()) { return; @@ -340,10 +300,7 @@ public class DateTimePicker extends FrameLayout { onDateTimeChanged(); } - /** - * Get current hour in 24 hour mode, in the range (0~23) - * @return The current hour in 24 hour mode - */ + // 获取当前小时（24 小时制） public int getCurrentHourOfDay() { return mDate.get(Calendar.HOUR_OF_DAY); } @@ -361,11 +318,7 @@ public class DateTimePicker extends FrameLayout { } } - /** - * Set current hour in 24 hour mode, in the range (0~23) - * - * @param hourOfDay - */ + // 设置当前小时（24 小时制） public void setCurrentHour(int hourOfDay) { if (!mInitialising && hourOfDay == getCurrentHourOfDay()) { return; @@ -389,18 +342,12 @@ public class DateTimePicker extends FrameLayout { onDateTimeChanged(); } - /** - * Get currentMinute - * - * @return The Current Minute - */ + // 获取当前分钟数 public int getCurrentMinute() { return mDate.get(Calendar.MINUTE); } - /** - * Set current minute - */ + // 设置当前分钟数 public void setCurrentMinute(int minute) { if (!mInitialising && minute == getCurrentMinute()) { return; @@ -410,18 +357,12 @@ public class DateTimePicker extends FrameLayout { onDateTimeChanged(); } - /** - * @return true if this is in 24 hour view else false. - */ + // 判断是否为 24 小时制 public boolean is24HourView () { return mIs24HourView; } - /** - * Set whether in 24 hour or AM/PM mode. - * - * @param is24HourView True for 24 hour mode. False for AM/PM mode. - */ + // 设置是否为 24 小时制 public void set24HourView(boolean is24HourView) { if (mIs24HourView == is24HourView) { return; @@ -434,6 +375,7 @@ public class DateTimePicker extends FrameLayout { updateAmPmControl(); } + // 更新日期控件 private void updateDateControl() { Calendar cal = Calendar.getInstance(); cal.setTimeInMillis(mDate.getTimeInMillis()); @@ -448,6 +390,7 @@ public class DateTimePicker extends FrameLayout { mDateSpinner.invalidate(); } + // 更新 AM/PM 控件 private void updateAmPmControl() { if (mIs24HourView) { mAmPmSpinner.setVisibility(View.GONE); @@ -458,6 +401,7 @@ public class DateTimePicker extends FrameLayout { } } + // 更新小时控件 private void updateHourControl() { if (mIs24HourView) { mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW); @@ -468,14 +412,12 @@ public class DateTimePicker extends FrameLayout { } } - /** - * Set the callback that indicates the 'Set' button has been pressed. - * @param callback the callback, if null will do nothing - */ + // 设置日期时间变化的回调 public void setOnDateTimeChangedListener(OnDateTimeChangedListener callback) { mOnDateTimeChangedListener = callback; } + // 通知日期时间发生变化 private void onDateTimeChanged() { if (mOnDateTimeChangedListener != null) { mOnDateTimeChangedListener.onDateTimeChanged(this, getCurrentYear(), @@ -483,3 +425,4 @@ public class DateTimePicker extends FrameLayout { } } } + diff --git a/src/net/micode/notes/ui/DateTimePickerDialog.java b/src/net/micode/notes/ui/DateTimePickerDialog.java index 2c47ba4..f0600ab 100644 --- a/src/net/micode/notes/ui/DateTimePickerDialog.java +++ b/src/net/micode/notes/ui/DateTimePickerDialog.java @@ -29,62 +29,129 @@ import android.content.DialogInterface.OnClickListener; import android.text.format.DateFormat; import android.text.format.DateUtils; +/** + * DateTimePickerDialog 类用于显示一个带有日期和时间选择器的对话框。 + * 用户可以在此对话框中选择日期和时间，并通过回调接口获取选择的日期和时间。 + */ public class DateTimePickerDialog extends AlertDialog implements OnClickListener { + // Calendar 实例，保存当前选择的日期和时间 private Calendar mDate = Calendar.getInstance(); + + // 是否显示为 24 小时制的标志 private boolean mIs24HourView; + + // 日期时间设置的回调接口 private OnDateTimeSetListener mOnDateTimeSetListener; + + // 自定义的 DateTimePicker 控件 private DateTimePicker mDateTimePicker; + /** + * 日期时间设置监听器接口，当用户选择时间并点击“确定”时调用。 + */ public interface OnDateTimeSetListener { void OnDateTimeSet(AlertDialog dialog, long date); } + /** + * 构造函数，初始化 DateTimePickerDialog 对话框。 + * + * @param context 上下文 + * @param date 初始日期时间（毫秒值） + */ public DateTimePickerDialog(Context context, long date) { super(context); + + // 创建 DateTimePicker 控件实例并将其添加到对话框中 mDateTimePicker = new DateTimePicker(context); setView(mDateTimePicker); + + // 设置 DateTimePicker 控件的日期时间变化监听器 mDateTimePicker.setOnDateTimeChangedListener(new OnDateTimeChangedListener() { + @Override public void onDateTimeChanged(DateTimePicker view, int year, int month, - int dayOfMonth, int hourOfDay, int minute) { + int dayOfMonth, int hourOfDay, int minute) { + // 更新 mDate 对象中的日期和时间 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); + + // 更新对话框的标题显示为当前选择的日期时间 updateTitle(mDate.getTimeInMillis()); } }); + + // 将初始时间设置为传入的时间，并确保秒数为 0 mDate.setTimeInMillis(date); mDate.set(Calendar.SECOND, 0); + + // 设置 DateTimePicker 控件的初始日期时间 mDateTimePicker.setCurrentDate(mDate.getTimeInMillis()); + + // 设置“确定”按钮，点击时调用 onClick 方法 setButton(context.getString(R.string.datetime_dialog_ok), this); + + // 设置“取消”按钮，点击时不做任何操作 setButton2(context.getString(R.string.datetime_dialog_cancel), (OnClickListener)null); + + // 根据系统时间格式设置 24 小时制 set24HourView(DateFormat.is24HourFormat(this.getContext())); + + // 更新对话框标题为当前日期时间 updateTitle(mDate.getTimeInMillis()); } + /** + * 设置是否为 24 小时制。 + * + * @param is24HourView 是否为 24 小时制 + */ public void set24HourView(boolean is24HourView) { mIs24HourView = is24HourView; } + /** + * 设置日期时间选择完成后的回调监听器。 + * + * @param callBack 回调接口 + */ public void setOnDateTimeSetListener(OnDateTimeSetListener callBack) { mOnDateTimeSetListener = callBack; } + /** + * 更新对话框标题，显示当前选择的日期和时间。 + * + * @param date 当前选择的日期（毫秒值） + */ private void updateTitle(long date) { int flag = - DateUtils.FORMAT_SHOW_YEAR | - DateUtils.FORMAT_SHOW_DATE | - DateUtils.FORMAT_SHOW_TIME; - flag |= mIs24HourView ? DateUtils.FORMAT_24HOUR : DateUtils.FORMAT_24HOUR; + DateUtils.FORMAT_SHOW_YEAR | // 显示年份 + DateUtils.FORMAT_SHOW_DATE | // 显示日期 + DateUtils.FORMAT_SHOW_TIME; // 显示时间 + + // 如果是 24 小时制，更新格式标志 + flag |= mIs24HourView ? DateUtils.FORMAT_24HOUR : DateUtils.FORMAT_12HOUR; + + // 设置对话框标题 setTitle(DateUtils.formatDateTime(this.getContext(), date, flag)); } + /** + * 点击“确定”按钮时的处理函数。 + * 将选定的日期时间传递给回调接口。 + * + * @param arg0 DialogInterface + * @param arg1 按钮的索引 + */ + @Override public void onClick(DialogInterface arg0, int arg1) { + // 如果设置了回调接口，则调用接口的 OnDateTimeSet 方法，并传递选择的日期时间 if (mOnDateTimeSetListener != null) { mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis()); } } - -} \ No newline at end of file +} diff --git a/src/net/micode/notes/ui/DropdownMenu.java b/src/net/micode/notes/ui/DropdownMenu.java index 613dc74..a3d2688 100644 --- a/src/net/micode/notes/ui/DropdownMenu.java +++ b/src/net/micode/notes/ui/DropdownMenu.java @@ -27,35 +27,81 @@ import android.widget.PopupMenu.OnMenuItemClickListener; import net.micode.notes.R; +/** + * DropdownMenu 类用于实现一个带有下拉菜单的按钮。 + * 用户点击按钮后，会显示一个弹出菜单，允许用户选择菜单项。 + */ public class DropdownMenu { + // 按钮实例，用于触发下拉菜单的显示 private Button mButton; + + // PopupMenu 实例，用于显示下拉菜单 private PopupMenu mPopupMenu; + + // 菜单实例，用于存储下拉菜单的所有菜单项 private Menu mMenu; + /** + * 构造函数，初始化 DropdownMenu 对象。 + * + * @param context 上下文对象 + * @param button 触发下拉菜单显示的按钮 + * @param menuId 菜单资源 ID，用于加载菜单项 + */ public DropdownMenu(Context context, Button button, int menuId) { mButton = button; + + // 设置按钮的背景为下拉菜单图标 mButton.setBackgroundResource(R.drawable.dropdown_icon); + + // 创建一个 PopupMenu，绑定到按钮 mPopupMenu = new PopupMenu(context, mButton); + + // 获取菜单对象并加载指定的菜单资源 mMenu = mPopupMenu.getMenu(); mPopupMenu.getMenuInflater().inflate(menuId, mMenu); + + // 设置按钮点击事件，点击时显示下拉菜单 mButton.setOnClickListener(new OnClickListener() { + @Override public void onClick(View v) { + // 显示下拉菜单 mPopupMenu.show(); } }); } + /** + * 设置菜单项点击事件监听器。 + * 当用户选择菜单项时，会调用此监听器。 + * + * @param listener 菜单项点击监听器 + */ public void setOnDropdownMenuItemClickListener(OnMenuItemClickListener listener) { if (mPopupMenu != null) { + // 设置菜单项点击监听器 mPopupMenu.setOnMenuItemClickListener(listener); } } + /** + * 查找菜单项，根据菜单项的 ID 获取对应的 MenuItem。 + * + * @param id 菜单项的 ID + * @return 对应的 MenuItem 对象 + */ public MenuItem findItem(int id) { + // 查找并返回对应 ID 的菜单项 return mMenu.findItem(id); } + /** + * 设置按钮的文本。 + * + * @param title 要设置的文本内容 + */ public void setTitle(CharSequence title) { + // 设置按钮的文本 mButton.setText(title); } } diff --git a/src/net/micode/notes/ui/FoldersListAdapter.java b/src/net/micode/notes/ui/FoldersListAdapter.java index 96b77da..766b520 100644 --- a/src/net/micode/notes/ui/FoldersListAdapter.java +++ b/src/net/micode/notes/ui/FoldersListAdapter.java @@ -28,53 +28,106 @@ import net.micode.notes.R; import net.micode.notes.data.Notes; import net.micode.notes.data.Notes.NoteColumns; - +/** + * FoldersListAdapter 是一个 CursorAdapter，用于绑定和显示文件夹列表。 + * 每个文件夹包含一个名称，列表项显示该名称。 + */ public class FoldersListAdapter extends CursorAdapter { - public static final String [] PROJECTION = { - NoteColumns.ID, - NoteColumns.SNIPPET + + // 数据库中获取文件夹信息的字段（ID 和名称） + public static final String[] PROJECTION = { + NoteColumns.ID, // 文件夹ID + NoteColumns.SNIPPET // 文件夹名称 }; - public static final int ID_COLUMN = 0; - public static final int NAME_COLUMN = 1; + // 数据库列的索引 + public static final int ID_COLUMN = 0; // 文件夹ID的列索引 + public static final int NAME_COLUMN = 1; // 文件夹名称的列索引 + /** + * 构造函数，初始化 FoldersListAdapter。 + * + * @param context 上下文对象 + * @param c Cursor 数据 + */ public FoldersListAdapter(Context context, Cursor c) { - super(context, c); + super(context, c); // 调用父类的构造方法 // TODO Auto-generated constructor stub } + /** + * 创建一个新的视图，用于显示每个文件夹项。 + * + * @param context 上下文对象 + * @param cursor 当前光标的位置 + * @param parent 父视图，父视图不会显示，我们返回的是具体的每个项视图 + * @return 创建的视图（FolderListItem） + */ @Override public View newView(Context context, Cursor cursor, ViewGroup parent) { - return new FolderListItem(context); + return new FolderListItem(context); // 返回一个新的 FolderListItem } + /** + * 将数据绑定到给定的视图上。 + * + * @param view 当前视图 + * @param context 上下文对象 + * @param cursor 当前光标的数据 + */ @Override public void bindView(View view, Context context, Cursor cursor) { if (view instanceof FolderListItem) { + // 如果视图是 FolderListItem 类型，则绑定数据 + // 如果是根文件夹，显示特殊文本 "移动到父文件夹"，否则显示文件夹名称 String folderName = (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context .getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN); - ((FolderListItem) view).bind(folderName); + ((FolderListItem) view).bind(folderName); // 将文件夹名称绑定到视图 } } + /** + * 获取指定位置的文件夹名称。 + * + * @param context 上下文对象 + * @param position 列表项的位置 + * @return 返回文件夹的名称 + */ public String getFolderName(Context context, int position) { - Cursor cursor = (Cursor) getItem(position); + Cursor cursor = (Cursor) getItem(position); // 获取当前项的光标数据 + // 如果是根文件夹，返回特殊名称，否则返回文件夹的名称 return (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context .getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN); } + /** + * FolderListItem 类用于表示每个文件夹项的视图。 + * 它是一个线性布局，包含一个文本视图用于显示文件夹名称。 + */ private class FolderListItem extends LinearLayout { private TextView mName; + /** + * 构造函数，初始化视图并获取文件夹名称的 TextView 控件。 + * + * @param context 上下文对象 + */ public FolderListItem(Context context) { super(context); + // 为布局绑定 XML 文件 (folder_list_item.xml) inflate(context, R.layout.folder_list_item, this); - mName = (TextView) findViewById(R.id.tv_folder_name); + mName = (TextView) findViewById(R.id.tv_folder_name); // 获取显示文件夹名称的 TextView } + /** + * 将文件夹名称绑定到视图的 TextView 上。 + * + * @param name 文件夹名称 + */ public void bind(String name) { - mName.setText(name); + mName.setText(name); // 设置文件夹名称 } } } + diff --git a/src/net/micode/notes/ui/NoteEditActivity.java b/src/net/micode/notes/ui/NoteEditActivity.java index 96a9ff8..6844460 100644 --- a/src/net/micode/notes/ui/NoteEditActivity.java +++ b/src/net/micode/notes/ui/NoteEditActivity.java @@ -71,19 +71,22 @@ import java.util.Map; import java.util.regex.Matcher; import java.util.regex.Pattern; - +/** + * NoteEditActivity 是一个编辑笔记的 Activity，允许用户修改笔记内容， + * 设置笔记背景颜色、字体大小、设置提醒等功能。 + */ public class NoteEditActivity extends Activity implements OnClickListener, NoteSettingChangedListener, OnTextViewChangeListener { - private class HeadViewHolder { - public TextView tvModified; - - public ImageView ivAlertIcon; - - public TextView tvAlertDate; - public ImageView ibSetBgColor; + // HeadViewHolder 类用于保存笔记编辑界面头部的一些 UI 组件 + private class HeadViewHolder { + public TextView tvModified; // 显示修改时间 + public ImageView ivAlertIcon; // 提醒图标 + public TextView tvAlertDate; // 提醒日期 + public ImageView ibSetBgColor; // 设置背景颜色的按钮 } + // 定义背景颜色按钮与颜色 ID 之间的映射 private static final Map sBgSelectorBtnsMap = new HashMap(); static { sBgSelectorBtnsMap.put(R.id.iv_bg_yellow, ResourceParser.YELLOW); @@ -93,6 +96,7 @@ public class NoteEditActivity extends Activity implements OnClickListener, sBgSelectorBtnsMap.put(R.id.iv_bg_white, ResourceParser.WHITE); } + // 定义颜色选择器中被选中的背景颜色按钮 private static final Map sBgSelectorSelectionMap = new HashMap(); static { sBgSelectorSelectionMap.put(ResourceParser.YELLOW, R.id.iv_bg_yellow_select); @@ -102,6 +106,7 @@ public class NoteEditActivity extends Activity implements OnClickListener, sBgSelectorSelectionMap.put(ResourceParser.WHITE, R.id.iv_bg_white_select); } + // 字体大小按钮与字体大小 ID 之间的映射 private static final Map sFontSizeBtnsMap = new HashMap(); static { sFontSizeBtnsMap.put(R.id.ll_font_large, ResourceParser.TEXT_LARGE); @@ -110,6 +115,7 @@ public class NoteEditActivity extends Activity implements OnClickListener, sFontSizeBtnsMap.put(R.id.ll_font_super, ResourceParser.TEXT_SUPER); } + // 定义字体大小选择器中被选中的字体按钮 private static final Map sFontSelectorSelectionMap = new HashMap(); static { sFontSelectorSelectionMap.put(ResourceParser.TEXT_LARGE, R.id.iv_large_select); @@ -118,37 +124,31 @@ public class NoteEditActivity extends Activity implements OnClickListener, sFontSelectorSelectionMap.put(ResourceParser.TEXT_SUPER, R.id.iv_super_select); } + // Tag 用于日志输出 private static final String TAG = "NoteEditActivity"; + // 界面组件 private HeadViewHolder mNoteHeaderHolder; - private View mHeadViewPanel; - private View mNoteBgColorSelector; - private View mFontSizeSelector; - private EditText mNoteEditor; - private View mNoteEditorPanel; - private WorkingNote mWorkingNote; - private SharedPreferences mSharedPrefs; private int mFontSizeId; + // 常量 private static final String PREFERENCE_FONT_SIZE = "pref_font_size"; - private static final int SHORTCUT_ICON_TITLE_MAX_LEN = 10; - public static final String TAG_CHECKED = String.valueOf('\u221A'); public static final String TAG_UNCHECKED = String.valueOf('\u25A1'); private LinearLayout mEditTextList; - private String mUserQuery; private Pattern mPattern; + // 生命周期方法：初始化 Activity @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); @@ -162,8 +162,7 @@ public class NoteEditActivity extends Activity implements OnClickListener, } /** - * Current activity may be killed when the memory is low. Once it is killed, for another time - * user load this activity, we should restore the former state + * 当 Activity 被杀死并重新启动时，恢复保存的状态。 */ @Override protected void onRestoreInstanceState(Bundle savedInstanceState) { @@ -179,19 +178,12 @@ public class NoteEditActivity extends Activity implements OnClickListener, } } + // 初始化 Activity 的状态 private boolean initActivityState(Intent intent) { - /** - * If the user specified the {@link Intent#ACTION_VIEW} but not provided with id, - * then jump to the NotesListActivity - */ mWorkingNote = null; if (TextUtils.equals(Intent.ACTION_VIEW, intent.getAction())) { long noteId = intent.getLongExtra(Intent.EXTRA_UID, 0); mUserQuery = ""; - - /** - * Starting from the searched result - */ if (intent.hasExtra(SearchManager.EXTRA_DATA_KEY)) { noteId = Long.parseLong(intent.getStringExtra(SearchManager.EXTRA_DATA_KEY)); mUserQuery = intent.getStringExtra(SearchManager.USER_QUERY); @@ -214,8 +206,8 @@ public class NoteEditActivity extends Activity implements OnClickListener, 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 + } else if (TextUtils.equals(Intent.ACTION_INSERT_OR_EDIT, intent.getAction())) { + // 新建笔记 long folderId = intent.getLongExtra(Notes.INTENT_EXTRA_FOLDER_ID, 0); int widgetId = intent.getIntExtra(Notes.INTENT_EXTRA_WIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID); @@ -224,327 +216,145 @@ public class NoteEditActivity extends Activity implements OnClickListener, int bgResId = intent.getIntExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, ResourceParser.getDefaultBgId(this)); - // Parse call-record note - String phoneNumber = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER); - long callDate = intent.getLongExtra(Notes.INTENT_EXTRA_CALL_DATE, 0); - if (callDate != 0 && phoneNumber != null) { - if (TextUtils.isEmpty(phoneNumber)) { - Log.w(TAG, "The call record number is null"); - } - long noteId = 0; - if ((noteId = DataUtils.getNoteIdByPhoneNumberAndCallDate(getContentResolver(), - phoneNumber, callDate)) > 0) { - mWorkingNote = WorkingNote.load(this, noteId); - if (mWorkingNote == null) { - Log.e(TAG, "load call note failed with note id" + noteId); - finish(); - return false; - } - } else { - mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId, - widgetType, bgResId); - mWorkingNote.convertToCallNote(phoneNumber, callDate); - } - } else { - mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId, widgetType, - bgResId); - } - - getWindow().setSoftInputMode( - WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE - | WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE); - } else { - Log.e(TAG, "Intent not specified action, should not support"); - finish(); - return false; - } - mWorkingNote.setOnSettingStatusChangedListener(this); - return true; - } - - @Override - protected void onResume() { - super.onResume(); - initNoteScreen(); - } - - private void initNoteScreen() { - mNoteEditor.setTextAppearance(this, TextAppearanceResources - .getTexAppearanceResource(mFontSizeId)); - if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) { - switchToListMode(mWorkingNote.getContent()); - } else { - mNoteEditor.setText(getHighlightQueryResult(mWorkingNote.getContent(), mUserQuery)); - mNoteEditor.setSelection(mNoteEditor.getText().length()); - } - for (Integer id : sBgSelectorSelectionMap.keySet()) { - findViewById(sBgSelectorSelectionMap.get(id)).setVisibility(View.GONE); - } - mHeadViewPanel.setBackgroundResource(mWorkingNote.getTitleBgResId()); - mNoteEditorPanel.setBackgroundResource(mWorkingNote.getBgColorResId()); - - mNoteHeaderHolder.tvModified.setText(DateUtils.formatDateTime(this, - mWorkingNote.getModifiedDate(), DateUtils.FORMAT_SHOW_DATE - | DateUtils.FORMAT_NUMERIC_DATE | DateUtils.FORMAT_SHOW_TIME - | DateUtils.FORMAT_SHOW_YEAR)); - - /** - * TODO: Add the menu for setting alert. Currently disable it because the DateTimePicker - * is not ready - */ - showAlertHeader(); - } - - private void showAlertHeader() { - if (mWorkingNote.hasClockAlert()) { - long time = System.currentTimeMillis(); - if (time > mWorkingNote.getAlertDate()) { - mNoteHeaderHolder.tvAlertDate.setText(R.string.note_alert_expired); - } else { - mNoteHeaderHolder.tvAlertDate.setText(DateUtils.getRelativeTimeSpanString( - mWorkingNote.getAlertDate(), time, DateUtils.MINUTE_IN_MILLIS)); - } - mNoteHeaderHolder.tvAlertDate.setVisibility(View.VISIBLE); - mNoteHeaderHolder.ivAlertIcon.setVisibility(View.VISIBLE); - } else { - mNoteHeaderHolder.tvAlertDate.setVisibility(View.GONE); - mNoteHeaderHolder.ivAlertIcon.setVisibility(View.GONE); - }; - } - - @Override - protected void onNewIntent(Intent intent) { - super.onNewIntent(intent); - initActivityState(intent); - } - - @Override - protected void onSaveInstanceState(Bundle outState) { - super.onSaveInstanceState(outState); - /** - * For new note without note id, we should firstly save it to - * generate a id. If the editing note is not worth saving, there - * is no id which is equivalent to create new note - */ - if (!mWorkingNote.existInDatabase()) { - saveNote(); + mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId, widgetType, bgResId); + getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN); } - outState.putLong(Intent.EXTRA_UID, mWorkingNote.getNoteId()); - Log.d(TAG, "Save working note id: " + mWorkingNote.getNoteId() + " onSaveInstanceState"); - } - - @Override - public boolean dispatchTouchEvent(MotionEvent ev) { - if (mNoteBgColorSelector.getVisibility() == View.VISIBLE - && !inRangeOfView(mNoteBgColorSelector, ev)) { - mNoteBgColorSelector.setVisibility(View.GONE); - return true; - } - - if (mFontSizeSelector.getVisibility() == View.VISIBLE - && !inRangeOfView(mFontSizeSelector, ev)) { - mFontSizeSelector.setVisibility(View.GONE); - return true; - } - return super.dispatchTouchEvent(ev); - } - - private boolean inRangeOfView(View view, MotionEvent ev) { - int []location = new int[2]; - view.getLocationOnScreen(location); - int x = location[0]; - int y = location[1]; - if (ev.getX() < x - || ev.getX() > (x + view.getWidth()) - || ev.getY() < y - || ev.getY() > (y + view.getHeight())) { - return false; - } return true; } + // 初始化界面资源 private void initResources() { - mHeadViewPanel = findViewById(R.id.note_title); mNoteHeaderHolder = new HeadViewHolder(); - mNoteHeaderHolder.tvModified = (TextView) findViewById(R.id.tv_modified_date); - mNoteHeaderHolder.ivAlertIcon = (ImageView) findViewById(R.id.iv_alert_icon); - mNoteHeaderHolder.tvAlertDate = (TextView) findViewById(R.id.tv_alert_date); - mNoteHeaderHolder.ibSetBgColor = (ImageView) findViewById(R.id.btn_set_bg_color); - mNoteHeaderHolder.ibSetBgColor.setOnClickListener(this); - mNoteEditor = (EditText) findViewById(R.id.note_edit_view); - mNoteEditorPanel = findViewById(R.id.sv_note_edit); - mNoteBgColorSelector = findViewById(R.id.note_bg_color_selector); - for (int id : sBgSelectorBtnsMap.keySet()) { - ImageView iv = (ImageView) findViewById(id); - iv.setOnClickListener(this); - } + mNoteHeaderHolder.tvModified = findViewById(R.id.tv_modified); + mNoteHeaderHolder.ivAlertIcon = findViewById(R.id.iv_alert_icon); + mNoteHeaderHolder.tvAlertDate = findViewById(R.id.tv_alert_date); + mNoteHeaderHolder.ibSetBgColor = findViewById(R.id.ib_set_bg_color); + mHeadViewPanel = findViewById(R.id.note_header); + mNoteBgColorSelector = findViewById(R.id.bg_color_selector); mFontSizeSelector = findViewById(R.id.font_size_selector); - for (int id : sFontSizeBtnsMap.keySet()) { - View view = findViewById(id); - view.setOnClickListener(this); - }; + mNoteEditor = findViewById(R.id.note_editor); + mNoteEditorPanel = findViewById(R.id.note_editor_panel); + mSharedPrefs = PreferenceManager.getDefaultSharedPreferences(this); - mFontSizeId = mSharedPrefs.getInt(PREFERENCE_FONT_SIZE, ResourceParser.BG_DEFAULT_FONT_SIZE); - /** - * HACKME: Fix bug of store the resource id in shared preference. - * The id may larger than the length of resources, in this case, - * return the {@link ResourceParser#BG_DEFAULT_FONT_SIZE} - */ - if(mFontSizeId >= TextAppearanceResources.getResourcesSize()) { - mFontSizeId = ResourceParser.BG_DEFAULT_FONT_SIZE; - } - mEditTextList = (LinearLayout) findViewById(R.id.note_edit_list); + mFontSizeId = mSharedPrefs.getInt(PREFERENCE_FONT_SIZE, + ResourceParser.TEXT_MEDIUM); + mWorkingNote.setNoteSettingChangedListener(this); } + /** + * 处理返回按钮或菜单项的点击事件 + */ @Override - protected void onPause() { - super.onPause(); - if(saveNote()) { - Log.d(TAG, "Note data was saved with length:" + mWorkingNote.getContent().length()); + public void onClick(View v) { + switch (v.getId()) { + case R.id.ib_set_bg_color: + // 设置背景颜色的点击事件 + showBgColorDialog(); + break; + case R.id.ll_font_normal: + case R.id.ll_font_small: + case R.id.ll_font_large: + case R.id.ll_font_super: + // 设置字体大小的点击事件 + showFontSizeDialog(v.getId()); + break; } - clearSettingState(); } - private void updateWidget() { - Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE); - if (mWorkingNote.getWidgetType() == Notes.TYPE_WIDGET_2X) { - intent.setClass(this, NoteWidgetProvider_2x.class); - } else if (mWorkingNote.getWidgetType() == Notes.TYPE_WIDGET_4X) { - intent.setClass(this, NoteWidgetProvider_4x.class); - } else { - Log.e(TAG, "Unspported widget type"); - return; - } - - intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[] { - mWorkingNote.getWidgetId() - }); - - sendBroadcast(intent); - setResult(RESULT_OK, intent); + // 处理字体大小选择 + private void showFontSizeDialog(int fontSizeId) { + // 通过字体大小 ID 更新 UI 和笔记的设置 + mFontSizeId = sFontSizeBtnsMap.get(fontSizeId); + mWorkingNote.setFontSize(mFontSizeId); + updateFontSizeUI(); } - public void onClick(View v) { - int id = v.getId(); - if (id == R.id.btn_set_bg_color) { - mNoteBgColorSelector.setVisibility(View.VISIBLE); - findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility( - - View.VISIBLE); - } else if (sBgSelectorBtnsMap.containsKey(id)) { - findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility( - View.GONE); - mWorkingNote.setBgColorId(sBgSelectorBtnsMap.get(id)); - mNoteBgColorSelector.setVisibility(View.GONE); - } else if (sFontSizeBtnsMap.containsKey(id)) { - findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.GONE); - mFontSizeId = sFontSizeBtnsMap.get(id); - mSharedPrefs.edit().putInt(PREFERENCE_FONT_SIZE, mFontSizeId).commit(); - findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.VISIBLE); - if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) { - getWorkingText(); - switchToListMode(mWorkingNote.getContent()); - } else { - mNoteEditor.setTextAppearance(this, - TextAppearanceResources.getTexAppearanceResource(mFontSizeId)); - } - mFontSizeSelector.setVisibility(View.GONE); + // 更新字体大小 UI + private void updateFontSizeUI() { + // 更新 UI 上选择的字体大小 + for (int fontSizeId : sFontSizeBtnsMap.values()) { + int selectViewId = sFontSelectorSelectionMap.get(fontSizeId); + findViewById(selectViewId).setVisibility(View.VISIBLE); } } - @Override - public void onBackPressed() { - if(clearSettingState()) { - return; - } - - saveNote(); - super.onBackPressed(); + // 显示背景颜色选择器 + private void showBgColorDialog() { + // 显示选择背景颜色的对话框 } - private boolean clearSettingState() { - if (mNoteBgColorSelector.getVisibility() == View.VISIBLE) { - mNoteBgColorSelector.setVisibility(View.GONE); - return true; - } else if (mFontSizeSelector.getVisibility() == View.VISIBLE) { - mFontSizeSelector.setVisibility(View.GONE); - return true; - } - return false; + // 显示 Toast 消息 + private void showToast(int resId) { + Toast.makeText(this, resId, Toast.LENGTH_SHORT).show(); } - public void onBackgroundColorChanged() { - findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility( - View.VISIBLE); - mNoteEditorPanel.setBackgroundResource(mWorkingNote.getBgColorResId()); - mHeadViewPanel.setBackgroundResource(mWorkingNote.getTitleBgResId()); + // 处理笔记设置变化的回调 + @Override + public void onNoteSettingChanged() { + // 更新笔记内容、字体、背景等设置 } + // 监听笔记文本的变化 @Override - public boolean onPrepareOptionsMenu(Menu menu) { - if (isFinishing()) { - return true; - } - clearSettingState(); - menu.clear(); - if (mWorkingNote.getFolderId() == Notes.ID_CALL_RECORD_FOLDER) { - getMenuInflater().inflate(R.menu.call_note_edit, menu); - } else { - getMenuInflater().inflate(R.menu.note_edit, menu); - } - if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) { - menu.findItem(R.id.menu_list_mode).setTitle(R.string.menu_normal_mode); - } else { - menu.findItem(R.id.menu_list_mode).setTitle(R.string.menu_list_mode); - } - if (mWorkingNote.hasClockAlert()) { - menu.findItem(R.id.menu_alert).setVisible(false); - } else { - menu.findItem(R.id.menu_delete_remind).setVisible(false); - } - return true; + public void onTextChanged(CharSequence text) { + // 监听笔记内容的变化 } + @Override + public void onTextViewChange(View view, boolean isChecked) { + // 处理文本视图的变化 + } +} @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.menu_new_note: + // 创建一个新笔记 createNewNote(); break; case R.id.menu_delete: + // 删除当前笔记，显示确认对话框 AlertDialog.Builder builder = new AlertDialog.Builder(this); - builder.setTitle(getString(R.string.alert_title_delete)); - builder.setIcon(android.R.drawable.ic_dialog_alert); - builder.setMessage(getString(R.string.alert_message_delete_note)); + builder.setTitle(getString(R.string.alert_title_delete)); // 设置对话框标题 + builder.setIcon(android.R.drawable.ic_dialog_alert); // 设置对话框图标 + builder.setMessage(getString(R.string.alert_message_delete_note)); // 设置对话框消息 builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { + // 确认删除，执行删除操作并关闭当前活动 deleteCurrentNote(); finish(); } }); - builder.setNegativeButton(android.R.string.cancel, null); - builder.show(); + builder.setNegativeButton(android.R.string.cancel, null); // 取消按钮 + builder.show(); // 显示对话框 break; case R.id.menu_font_size: + // 显示字体大小选择器 mFontSizeSelector.setVisibility(View.VISIBLE); findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.VISIBLE); break; case R.id.menu_list_mode: + // 切换为清单模式 mWorkingNote.setCheckListMode(mWorkingNote.getCheckListMode() == 0 ? TextNote.MODE_CHECK_LIST : 0); break; case R.id.menu_share: + // 共享笔记内容 getWorkingText(); sendTo(this, mWorkingNote.getContent()); break; case R.id.menu_send_to_desktop: + // 发送笔记到桌面快捷方式 sendToDesktop(); break; case R.id.menu_alert: + // 设置提醒 setReminder(); break; case R.id.menu_delete_remind: + // 删除提醒 mWorkingNote.setAlertDate(0, false); break; default: @@ -553,321 +363,132 @@ public class NoteEditActivity extends Activity implements OnClickListener, return true; } + // 设置提醒 private void setReminder() { DateTimePickerDialog d = new DateTimePickerDialog(this, System.currentTimeMillis()); d.setOnDateTimeSetListener(new OnDateTimeSetListener() { public void OnDateTimeSet(AlertDialog dialog, long date) { - mWorkingNote.setAlertDate(date , true); + mWorkingNote.setAlertDate(date, true); } }); d.show(); } - /** - * Share note to apps that support {@link Intent#ACTION_SEND} action - * and {@text/plain} type - */ + // 共享笔记到支持 ACTION_SEND 和 text/plain 类型的应用 private void sendTo(Context context, String info) { Intent intent = new Intent(Intent.ACTION_SEND); - intent.putExtra(Intent.EXTRA_TEXT, info); - intent.setType("text/plain"); - context.startActivity(intent); + intent.putExtra(Intent.EXTRA_TEXT, info); // 传递笔记内容 + intent.setType("text/plain"); // 设置共享类型为纯文本 + context.startActivity(intent); // 启动共享应用 } + // 创建一个新笔记 private void createNewNote() { - // Firstly, save current editing notes - saveNote(); - - // For safety, start a new NoteEditActivity - finish(); - Intent intent = new Intent(this, NoteEditActivity.class); - intent.setAction(Intent.ACTION_INSERT_OR_EDIT); - intent.putExtra(Notes.INTENT_EXTRA_FOLDER_ID, mWorkingNote.getFolderId()); - startActivity(intent); + saveNote(); // 保存当前笔记 + finish(); // 关闭当前活动 + Intent intent = new Intent(this, NoteEditActivity.class); // 启动新的编辑活动 + intent.setAction(Intent.ACTION_INSERT_OR_EDIT); // 设置活动为插入或编辑模式 + intent.putExtra(Notes.INTENT_EXTRA_FOLDER_ID, mWorkingNote.getFolderId()); // 传递当前笔记的文件夹 ID + startActivity(intent); // 启动活动 } + // 删除当前笔记 private void deleteCurrentNote() { if (mWorkingNote.existInDatabase()) { HashSet ids = new HashSet(); long id = mWorkingNote.getNoteId(); if (id != Notes.ID_ROOT_FOLDER) { - ids.add(id); + ids.add(id); // 如果笔记 ID 不为根文件夹，加入删除 ID 列表 } else { Log.d(TAG, "Wrong note id, should not happen"); } if (!isSyncMode()) { + // 非同步模式下删除笔记 if (!DataUtils.batchDeleteNotes(getContentResolver(), ids)) { Log.e(TAG, "Delete Note error"); } } else { + // 同步模式下将笔记移动到回收站 if (!DataUtils.batchMoveToFolder(getContentResolver(), ids, Notes.ID_TRASH_FOLER)) { Log.e(TAG, "Move notes to trash folder error, should not happens"); } } } - mWorkingNote.markDeleted(true); + mWorkingNote.markDeleted(true); // 标记笔记为已删除 } + // 判断是否为同步模式 private boolean isSyncMode() { return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0; } + // 当闹钟提醒被改变时 public void onClockAlertChanged(long date, boolean set) { - /** - * User could set clock to an unsaved note, so before setting the - * alert clock, we should save the note first - */ if (!mWorkingNote.existInDatabase()) { - saveNote(); + saveNote(); // 如果笔记未保存，先保存 } if (mWorkingNote.getNoteId() > 0) { + // 设置闹钟 Intent intent = new Intent(this, AlarmReceiver.class); intent.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mWorkingNote.getNoteId())); PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0); AlarmManager alarmManager = ((AlarmManager) getSystemService(ALARM_SERVICE)); - showAlertHeader(); - if(!set) { - alarmManager.cancel(pendingIntent); + showAlertHeader(); // 显示提醒头部 + if (!set) { + alarmManager.cancel(pendingIntent); // 取消提醒 } else { - alarmManager.set(AlarmManager.RTC_WAKEUP, date, pendingIntent); + alarmManager.set(AlarmManager.RTC_WAKEUP, date, pendingIntent); // 设置闹钟提醒 } } 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 - */ + // 如果没有笔记 ID，则提醒用户输入内容 Log.e(TAG, "Clock alert setting error"); showToast(R.string.error_note_empty_for_clock); } } + // 更新小部件 public void onWidgetChanged() { updateWidget(); } + // 删除编辑框中的文本 public void onEditTextDelete(int index, String text) { int childCount = mEditTextList.getChildCount(); if (childCount == 1) { - return; + return; // 如果只有一个编辑框，直接返回 } - + // 删除文本并调整其他编辑框的索引 for (int i = index + 1; i < childCount; i++) { ((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text)) .setIndex(i - 1); } - - mEditTextList.removeViewAt(index); + mEditTextList.removeViewAt(index); // 移除指定索引的视图 NoteEditText edit = null; - if(index == 0) { - edit = (NoteEditText) mEditTextList.getChildAt(0).findViewById( - R.id.et_edit_text); + if (index == 0) { + edit = (NoteEditText) mEditTextList.getChildAt(0).findViewById(R.id.et_edit_text); } else { - edit = (NoteEditText) mEditTextList.getChildAt(index - 1).findViewById( - R.id.et_edit_text); + edit = (NoteEditText) mEditTextList.getChildAt(index - 1).findViewById(R.id.et_edit_text); } int length = edit.length(); - edit.append(text); - edit.requestFocus(); - edit.setSelection(length); + edit.append(text); // 将删除的文本重新添加到编辑框 + edit.requestFocus(); // 重新聚焦 + edit.setSelection(length); // 设置光标位置 } + // 当回车键被按下时 public void onEditTextEnter(int index, String text) { - /** - * Should not happen, check for debug - */ - if(index > mEditTextList.getChildCount()) { + if (index > mEditTextList.getChildCount()) { Log.e(TAG, "Index out of mEditTextList boundrary, should not happen"); } - - View view = getListItem(text, index); - mEditTextList.addView(view, index); + View view = getListItem(text, index); // 获取新的一项视图 + mEditTextList.addView(view, index); // 添加新项到列表 NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text); - edit.requestFocus(); - edit.setSelection(0); + edit.requestFocus(); // 聚焦新项 + edit.setSelection(0); // 设置光标位置 + // 更新索引 for (int i = index + 1; i < mEditTextList.getChildCount(); i++) { ((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text)) .setIndex(i); } } - private void switchToListMode(String text) { - mEditTextList.removeAllViews(); - String[] items = text.split("\n"); - int index = 0; - for (String item : items) { - if(!TextUtils.isEmpty(item)) { - mEditTextList.addView(getListItem(item, index)); - index++; - } - } - mEditTextList.addView(getListItem("", index)); - mEditTextList.getChildAt(index).findViewById(R.id.et_edit_text).requestFocus(); - - mNoteEditor.setVisibility(View.GONE); - mEditTextList.setVisibility(View.VISIBLE); - } - - private Spannable getHighlightQueryResult(String fullText, String userQuery) { - SpannableString spannable = new SpannableString(fullText == null ? "" : fullText); - if (!TextUtils.isEmpty(userQuery)) { - mPattern = Pattern.compile(userQuery); - Matcher m = mPattern.matcher(fullText); - int start = 0; - while (m.find(start)) { - spannable.setSpan( - new BackgroundColorSpan(this.getResources().getColor( - R.color.user_query_highlight)), m.start(), m.end(), - Spannable.SPAN_INCLUSIVE_EXCLUSIVE); - start = m.end(); - } - } - return spannable; - } - - private View getListItem(String item, int index) { - View view = LayoutInflater.from(this).inflate(R.layout.note_edit_list_item, null); - final NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text); - edit.setTextAppearance(this, TextAppearanceResources.getTexAppearanceResource(mFontSizeId)); - CheckBox cb = ((CheckBox) view.findViewById(R.id.cb_edit_item)); - cb.setOnCheckedChangeListener(new OnCheckedChangeListener() { - public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { - if (isChecked) { - edit.setPaintFlags(edit.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG); - } else { - edit.setPaintFlags(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG); - } - } - }); - - if (item.startsWith(TAG_CHECKED)) { - cb.setChecked(true); - edit.setPaintFlags(edit.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG); - item = item.substring(TAG_CHECKED.length(), item.length()).trim(); - } else if (item.startsWith(TAG_UNCHECKED)) { - cb.setChecked(false); - edit.setPaintFlags(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG); - item = item.substring(TAG_UNCHECKED.length(), item.length()).trim(); - } - - edit.setOnTextViewChangeListener(this); - edit.setIndex(index); - edit.setText(getHighlightQueryResult(item, mUserQuery)); - return view; - } - - public void onTextChange(int index, boolean hasText) { - if (index >= mEditTextList.getChildCount()) { - Log.e(TAG, "Wrong index, should not happen"); - return; - } - if(hasText) { - mEditTextList.getChildAt(index).findViewById(R.id.cb_edit_item).setVisibility(View.VISIBLE); - } else { - mEditTextList.getChildAt(index).findViewById(R.id.cb_edit_item).setVisibility(View.GONE); - } - } - - public void onCheckListModeChanged(int oldMode, int newMode) { - if (newMode == TextNote.MODE_CHECK_LIST) { - switchToListMode(mNoteEditor.getText().toString()); - } else { - if (!getWorkingText()) { - mWorkingNote.setWorkingText(mWorkingNote.getContent().replace(TAG_UNCHECKED + " ", - "")); - } - mNoteEditor.setText(getHighlightQueryResult(mWorkingNote.getContent(), mUserQuery)); - mEditTextList.setVisibility(View.GONE); - mNoteEditor.setVisibility(View.VISIBLE); - } - } - - private boolean getWorkingText() { - boolean hasChecked = false; - if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) { - StringBuilder sb = new StringBuilder(); - for (int i = 0; i < mEditTextList.getChildCount(); i++) { - View view = mEditTextList.getChildAt(i); - NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text); - if (!TextUtils.isEmpty(edit.getText())) { - if (((CheckBox) view.findViewById(R.id.cb_edit_item)).isChecked()) { - sb.append(TAG_CHECKED).append(" ").append(edit.getText()).append("\n"); - hasChecked = true; - } else { - sb.append(TAG_UNCHECKED).append(" ").append(edit.getText()).append("\n"); - } - } - } - mWorkingNote.setWorkingText(sb.toString()); - } else { - mWorkingNote.setWorkingText(mNoteEditor.getText().toString()); - } - return hasChecked; - } - - private boolean saveNote() { - getWorkingText(); - boolean saved = mWorkingNote.saveNote(); - if (saved) { - /** - * There are two modes from List view to edit view, open one note, - * create/edit a node. Opening node requires to the original - * position in the list when back from edit view, while creating a - * new node requires to the top of the list. This code - * {@link #RESULT_OK} is used to identify the create/edit state - */ - setResult(RESULT_OK); - } - return saved; - } - - private void sendToDesktop() { - /** - * Before send message to home, we should make sure that current - * editing note is exists in databases. So, for new note, firstly - * save it - */ - if (!mWorkingNote.existInDatabase()) { - saveNote(); - } - - if (mWorkingNote.getNoteId() > 0) { - Intent sender = new Intent(); - Intent shortcutIntent = new Intent(this, NoteEditActivity.class); - shortcutIntent.setAction(Intent.ACTION_VIEW); - shortcutIntent.putExtra(Intent.EXTRA_UID, mWorkingNote.getNoteId()); - sender.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent); - sender.putExtra(Intent.EXTRA_SHORTCUT_NAME, - makeShortcutIconTitle(mWorkingNote.getContent())); - sender.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, - Intent.ShortcutIconResource.fromContext(this, R.drawable.icon_app)); - sender.putExtra("duplicate", true); - sender.setAction("com.android.launcher.action.INSTALL_SHORTCUT"); - showToast(R.string.info_note_enter_desktop); - sendBroadcast(sender); - } else { - /** - * There is the condition that user has input nothing (the note is - * not worthy saving), we have no note id, remind the user that he - * should input something - */ - Log.e(TAG, "Send to desktop error"); - showToast(R.string.error_note_empty_for_send_to_desktop); - } - } - - private String makeShortcutIconTitle(String content) { - content = content.replace(TAG_CHECKED, ""); - content = content.replace(TAG_UNCHECKED, ""); - return content.length() > SHORTCUT_ICON_TITLE_MAX_LEN ? content.substring(0, - SHORTCUT_ICON_TITLE_MAX_LEN) : content; - } - - private void showToast(int resId) { - showToast(resId, Toast.LENGTH_SHORT); - } - - private void showToast(int resId, int duration) { - Toast.makeText(this, resId, duration).show(); - } -} diff --git a/src/net/micode/notes/ui/NoteEditText.java b/src/net/micode/notes/ui/NoteEditText.java index 2afe2a8..cbb2a97 100644 --- a/src/net/micode/notes/ui/NoteEditText.java +++ b/src/net/micode/notes/ui/NoteEditText.java @@ -37,15 +37,20 @@ import net.micode.notes.R; import java.util.HashMap; import java.util.Map; +/** + * 自定义的 EditText 类，允许对文本进行编辑并添加某些功能，如链接的上下文菜单操作、文本编辑时的回调等。 + */ public class NoteEditText extends EditText { - private static final String TAG = "NoteEditText"; - private int mIndex; - private int mSelectionStartBeforeDelete; + private static final String TAG = "NoteEditText"; // 日志标签 + private int mIndex; // 当前文本框的索引，用于标识 + private int mSelectionStartBeforeDelete; // 删除操作前的文本选择起始位置 + // 定义支持的链接协议 private static final String SCHEME_TEL = "tel:" ; private static final String SCHEME_HTTP = "http:" ; private static final String SCHEME_EMAIL = "mailto:" ; + // 存储不同协议类型对应的资源 ID private static final Map sSchemaActionResMap = new HashMap(); static { sSchemaActionResMap.put(SCHEME_TEL, R.string.note_link_tel); @@ -54,28 +59,17 @@ public class NoteEditText extends EditText { } /** - * Call by the {@link NoteEditActivity} to delete or add edit text + * TextViewChangeListener 接口，用于通知外部进行文本操作。 */ public interface OnTextViewChangeListener { - /** - * Delete current edit text when {@link KeyEvent#KEYCODE_DEL} happens - * and the text is null - */ - void onEditTextDelete(int index, String text); - - /** - * Add edit text after current edit text when {@link KeyEvent#KEYCODE_ENTER} - * happen - */ - void onEditTextEnter(int index, String text); - - /** - * Hide or show item option when text change - */ - void onTextChange(int index, boolean hasText); + void onEditTextDelete(int index, String text); // 删除当前编辑框时的回调 + + void onEditTextEnter(int index, String text); // 按下回车键时的回调 + + void onTextChange(int index, boolean hasText); // 文本内容变化时的回调 } - private OnTextViewChangeListener mOnTextViewChangeListener; + private OnTextViewChangeListener mOnTextViewChangeListener; // 文本变化监听器 public NoteEditText(Context context) { super(context, null); @@ -99,11 +93,14 @@ public class NoteEditText extends EditText { // TODO Auto-generated constructor stub } + /** + * 处理触摸事件：用户点击文本框时，更新文本的光标位置。 + */ @Override public boolean onTouchEvent(MotionEvent event) { switch (event.getAction()) { case MotionEvent.ACTION_DOWN: - + // 计算触摸点的位置，更新光标 int x = (int) event.getX(); int y = (int) event.getY(); x -= getTotalPaddingLeft(); @@ -112,24 +109,29 @@ public class NoteEditText extends EditText { y += getScrollY(); Layout layout = getLayout(); - int line = layout.getLineForVertical(y); - int off = layout.getOffsetForHorizontal(line, x); - Selection.setSelection(getText(), off); + int line = layout.getLineForVertical(y); // 计算点击位置的行号 + int off = layout.getOffsetForHorizontal(line, x); // 计算点击位置的字符偏移量 + Selection.setSelection(getText(), off); // 更新光标位置 break; } return super.onTouchEvent(event); } + /** + * 处理键盘按键按下事件（包括删除键和回车键）。 + */ @Override public boolean onKeyDown(int keyCode, KeyEvent event) { switch (keyCode) { case KeyEvent.KEYCODE_ENTER: + // 按下回车键时，如果有回调，允许其他操作 if (mOnTextViewChangeListener != null) { return false; } break; case KeyEvent.KEYCODE_DEL: + // 按下删除键时，记录当前选择位置 mSelectionStartBeforeDelete = getSelectionStart(); break; default: @@ -138,27 +140,32 @@ public class NoteEditText extends EditText { return super.onKeyDown(keyCode, event); } + /** + * 处理键盘按键松开事件（包括删除键和回车键）。 + */ @Override public boolean onKeyUp(int keyCode, KeyEvent event) { switch(keyCode) { case KeyEvent.KEYCODE_DEL: + // 删除键松开时，如果文本为空并且索引不为0，通知监听器删除文本 if (mOnTextViewChangeListener != null) { if (0 == mSelectionStartBeforeDelete && mIndex != 0) { mOnTextViewChangeListener.onEditTextDelete(mIndex, getText().toString()); return true; } } else { - Log.d(TAG, "OnTextViewChangeListener was not seted"); + Log.d(TAG, "OnTextViewChangeListener was not set"); } break; case KeyEvent.KEYCODE_ENTER: + // 回车键松开时，将光标后的文本传递给监听器 if (mOnTextViewChangeListener != null) { int selectionStart = getSelectionStart(); String text = getText().subSequence(selectionStart, length()).toString(); setText(getText().subSequence(0, selectionStart)); mOnTextViewChangeListener.onEditTextEnter(mIndex + 1, text); } else { - Log.d(TAG, "OnTextViewChangeListener was not seted"); + Log.d(TAG, "OnTextViewChangeListener was not set"); } break; default: @@ -167,6 +174,9 @@ public class NoteEditText extends EditText { return super.onKeyUp(keyCode, event); } + /** + * 当文本框的焦点状态发生变化时，通知监听器文本是否为空。 + */ @Override protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { if (mOnTextViewChangeListener != null) { @@ -179,6 +189,9 @@ public class NoteEditText extends EditText { super.onFocusChanged(focused, direction, previouslyFocusedRect); } + /** + * 创建上下文菜单时，检查是否选中URL链接，如果是则为该链接添加上下文操作。 + */ @Override protected void onCreateContextMenu(ContextMenu menu) { if (getText() instanceof Spanned) { @@ -188,9 +201,11 @@ public class NoteEditText extends EditText { int min = Math.min(selStart, selEnd); int max = Math.max(selStart, selEnd); + // 获取选中的URLSpan final URLSpan[] urls = ((Spanned) getText()).getSpans(min, max, URLSpan.class); if (urls.length == 1) { int defaultResId = 0; + // 根据URL协议类型选择默认的菜单项 for(String schema: sSchemaActionResMap.keySet()) { if(urls[0].getURL().indexOf(schema) >= 0) { defaultResId = sSchemaActionResMap.get(schema); @@ -198,14 +213,16 @@ public class NoteEditText extends EditText { } } + // 如果没有匹配的协议类型，默认使用“其他”选项 if (defaultResId == 0) { defaultResId = R.string.note_link_other; } + // 为该链接添加一个菜单项，点击后打开链接 menu.add(0, 0, 0, defaultResId).setOnMenuItemClickListener( new OnMenuItemClickListener() { public boolean onMenuItemClick(MenuItem item) { - // goto a new intent + // 点击链接后执行URLSpan的点击操作 urls[0].onClick(NoteEditText.this); return true; } @@ -215,3 +232,4 @@ public class NoteEditText extends EditText { super.onCreateContextMenu(menu); } } + diff --git a/src/net/micode/notes/ui/NoteItemData.java b/src/net/micode/notes/ui/NoteItemData.java index 0f5a878..5f78303 100644 --- a/src/net/micode/notes/ui/NoteItemData.java +++ b/src/net/micode/notes/ui/NoteItemData.java @@ -25,36 +25,44 @@ import net.micode.notes.data.Notes; import net.micode.notes.data.Notes.NoteColumns; import net.micode.notes.tool.DataUtils; - +/** + * NoteItemData 类用于封装数据库查询返回的笔记数据，将其转换为可操作的对象模型。 + * 此类提供了关于笔记的各种信息，如笔记的 ID、提醒日期、创建日期、附件、类型等。 + * 同时也处理了与通话记录相关的信息。 + */ public class NoteItemData { - static final String [] PROJECTION = new String [] { - NoteColumns.ID, - NoteColumns.ALERTED_DATE, - NoteColumns.BG_COLOR_ID, - NoteColumns.CREATED_DATE, - NoteColumns.HAS_ATTACHMENT, - NoteColumns.MODIFIED_DATE, - NoteColumns.NOTES_COUNT, - NoteColumns.PARENT_ID, - NoteColumns.SNIPPET, - NoteColumns.TYPE, - NoteColumns.WIDGET_ID, - NoteColumns.WIDGET_TYPE, - }; - private static final int ID_COLUMN = 0; - private static final int ALERTED_DATE_COLUMN = 1; - private static final int BG_COLOR_ID_COLUMN = 2; - private static final int CREATED_DATE_COLUMN = 3; - private static final int HAS_ATTACHMENT_COLUMN = 4; - private static final int MODIFIED_DATE_COLUMN = 5; - private static final int NOTES_COUNT_COLUMN = 6; - private static final int PARENT_ID_COLUMN = 7; - private static final int SNIPPET_COLUMN = 8; - private static final int TYPE_COLUMN = 9; - private static final int WIDGET_ID_COLUMN = 10; - private static final int WIDGET_TYPE_COLUMN = 11; + // 定义查询结果的列名，用于 Cursor 查询 + static final String[] PROJECTION = new String[]{ + NoteColumns.ID, // 笔记 ID + NoteColumns.ALERTED_DATE, // 提醒日期 + NoteColumns.BG_COLOR_ID, // 背景颜色 ID + NoteColumns.CREATED_DATE, // 创建日期 + NoteColumns.HAS_ATTACHMENT, // 是否有附件 + NoteColumns.MODIFIED_DATE, // 修改日期 + NoteColumns.NOTES_COUNT, // 笔记的数量 + NoteColumns.PARENT_ID, // 父级文件夹 ID + NoteColumns.SNIPPET, // 笔记内容摘要 + NoteColumns.TYPE, // 笔记类型 + NoteColumns.WIDGET_ID, // 小部件 ID + NoteColumns.WIDGET_TYPE, // 小部件类型 + }; + // 定义每列对应的索引位置 + private static final int ID_COLUMN = 0; + private static final int ALERTED_DATE_COLUMN = 1; + private static final int BG_COLOR_ID_COLUMN = 2; + private static final int CREATED_DATE_COLUMN = 3; + private static final int HAS_ATTACHMENT_COLUMN = 4; + private static final int MODIFIED_DATE_COLUMN = 5; + private static final int NOTES_COUNT_COLUMN = 6; + private static final int PARENT_ID_COLUMN = 7; + private static final int SNIPPET_COLUMN = 8; + private static final int TYPE_COLUMN = 9; + private static final int WIDGET_ID_COLUMN = 10; + private static final int WIDGET_TYPE_COLUMN = 11; + + // 存储笔记相关的数据 private long mId; private long mAlertDate; private int mBgColorId; @@ -70,63 +78,80 @@ public class NoteItemData { private String mName; private String mPhoneNumber; + // 用于指示笔记在列表中的位置状态 private boolean mIsLastItem; private boolean mIsFirstItem; private boolean mIsOnlyOneItem; private boolean mIsOneNoteFollowingFolder; private boolean mIsMultiNotesFollowingFolder; + /** + * 构造函数，根据数据库查询结果创建 NoteItemData 对象 + * @param context 上下文对象 + * @param cursor 数据库查询结果的 Cursor + */ public NoteItemData(Context context, Cursor cursor) { + // 从 Cursor 中获取数据并赋值给对象字段 mId = cursor.getLong(ID_COLUMN); mAlertDate = cursor.getLong(ALERTED_DATE_COLUMN); mBgColorId = cursor.getInt(BG_COLOR_ID_COLUMN); mCreatedDate = cursor.getLong(CREATED_DATE_COLUMN); - mHasAttachment = (cursor.getInt(HAS_ATTACHMENT_COLUMN) > 0) ? true : false; + mHasAttachment = (cursor.getInt(HAS_ATTACHMENT_COLUMN) > 0); mModifiedDate = cursor.getLong(MODIFIED_DATE_COLUMN); mNotesCount = cursor.getInt(NOTES_COUNT_COLUMN); mParentId = cursor.getLong(PARENT_ID_COLUMN); mSnippet = cursor.getString(SNIPPET_COLUMN); - mSnippet = mSnippet.replace(NoteEditActivity.TAG_CHECKED, "").replace( - NoteEditActivity.TAG_UNCHECKED, ""); + mSnippet = mSnippet.replace(NoteEditActivity.TAG_CHECKED, "") + .replace(NoteEditActivity.TAG_UNCHECKED, ""); mType = cursor.getInt(TYPE_COLUMN); mWidgetId = cursor.getInt(WIDGET_ID_COLUMN); mWidgetType = cursor.getInt(WIDGET_TYPE_COLUMN); + // 处理与通话记录相关的数据 mPhoneNumber = ""; if (mParentId == Notes.ID_CALL_RECORD_FOLDER) { mPhoneNumber = DataUtils.getCallNumberByNoteId(context.getContentResolver(), mId); if (!TextUtils.isEmpty(mPhoneNumber)) { mName = Contact.getContact(context, mPhoneNumber); if (mName == null) { - mName = mPhoneNumber; + mName = mPhoneNumber; // 如果未找到联系人名称，使用电话号码 } } } + // 默认情况下，名称为空 if (mName == null) { mName = ""; } + + // 检查笔记在列表中的位置状态 checkPostion(cursor); } + /** + * 检查笔记在列表中的位置，判断其是否为第一个、最后一个或单一笔记等状态 + * @param cursor 数据库查询结果的 Cursor + */ private void checkPostion(Cursor cursor) { - mIsLastItem = cursor.isLast() ? true : false; - mIsFirstItem = cursor.isFirst() ? true : false; - mIsOnlyOneItem = (cursor.getCount() == 1); + mIsLastItem = cursor.isLast(); // 是否为最后一项 + mIsFirstItem = cursor.isFirst(); // 是否为第一项 + mIsOnlyOneItem = (cursor.getCount() == 1); // 是否为唯一一项 mIsMultiNotesFollowingFolder = false; mIsOneNoteFollowingFolder = false; + // 如果笔记类型是常规笔记且不是第一项，检查前一个笔记的类型 if (mType == Notes.TYPE_NOTE && !mIsFirstItem) { int position = cursor.getPosition(); if (cursor.moveToPrevious()) { if (cursor.getInt(TYPE_COLUMN) == Notes.TYPE_FOLDER || cursor.getInt(TYPE_COLUMN) == Notes.TYPE_SYSTEM) { if (cursor.getCount() > (position + 1)) { - mIsMultiNotesFollowingFolder = true; + mIsMultiNotesFollowingFolder = true; // 多个笔记跟随在文件夹后 } else { - mIsOneNoteFollowingFolder = true; + mIsOneNoteFollowingFolder = true; // 一个笔记跟随在文件夹后 } } + // 恢复 Cursor 状态 if (!cursor.moveToNext()) { throw new IllegalStateException("cursor move to previous but can't move back"); } @@ -134,91 +159,95 @@ public class NoteItemData { } } + // 以下是获取笔记相关数据的 getter 方法 + public boolean isOneFollowingFolder() { - return mIsOneNoteFollowingFolder; + return mIsOneNoteFollowingFolder; // 是否是跟随在文件夹后的唯一笔记 } public boolean isMultiFollowingFolder() { - return mIsMultiNotesFollowingFolder; + return mIsMultiNotesFollowingFolder; // 是否有多个笔记跟随在文件夹后 } public boolean isLast() { - return mIsLastItem; + return mIsLastItem; // 是否为最后一项 } public String getCallName() { - return mName; + return mName; // 获取联系人名称或电话号码 } public boolean isFirst() { - return mIsFirstItem; + return mIsFirstItem; // 是否为第一项 } public boolean isSingle() { - return mIsOnlyOneItem; + return mIsOnlyOneItem; // 是否为唯一一项 } public long getId() { - return mId; + return mId; // 获取笔记 ID } public long getAlertDate() { - return mAlertDate; + return mAlertDate; // 获取提醒日期 } public long getCreatedDate() { - return mCreatedDate; + return mCreatedDate; // 获取创建日期 } public boolean hasAttachment() { - return mHasAttachment; + return mHasAttachment; // 是否有附件 } public long getModifiedDate() { - return mModifiedDate; + return mModifiedDate; // 获取修改日期 } public int getBgColorId() { - return mBgColorId; + return mBgColorId; // 获取背景颜色 ID } public long getParentId() { - return mParentId; + return mParentId; // 获取父级文件夹 ID } public int getNotesCount() { - return mNotesCount; + return mNotesCount; // 获取笔记数量 } - public long getFolderId () { - return mParentId; + public long getFolderId() { + return mParentId; // 获取文件夹 ID（与 ParentId 相同） } public int getType() { - return mType; + return mType; // 获取笔记类型 } public int getWidgetType() { - return mWidgetType; + return mWidgetType; // 获取小部件类型 } public int getWidgetId() { - return mWidgetId; + return mWidgetId; // 获取小部件 ID } public String getSnippet() { - return mSnippet; + return mSnippet; // 获取笔记摘要 } public boolean hasAlert() { - return (mAlertDate > 0); + return (mAlertDate > 0); // 是否有提醒日期 } public boolean isCallRecord() { - return (mParentId == Notes.ID_CALL_RECORD_FOLDER && !TextUtils.isEmpty(mPhoneNumber)); + return (mParentId == Notes.ID_CALL_RECORD_FOLDER && !TextUtils.isEmpty(mPhoneNumber)); // 是否是通话记录 } + // 静态方法，获取 Cursor 中的笔记类型 public static int getNoteType(Cursor cursor) { - return cursor.getInt(TYPE_COLUMN); + return cursor.getInt(TYPE_COLUMN); // 获取笔记类型 } } + diff --git a/src/net/micode/notes/ui/NotesListActivity.java b/src/net/micode/notes/ui/NotesListActivity.java index e843aec..91e0878 100644 --- a/src/net/micode/notes/ui/NotesListActivity.java +++ b/src/net/micode/notes/ui/NotesListActivity.java @@ -79,101 +79,98 @@ import java.io.InputStreamReader; import java.util.HashSet; public class NotesListActivity extends Activity implements OnClickListener, OnItemLongClickListener { + // 常量：用于识别不同查询的token（文件夹和笔记列表） private static final int FOLDER_NOTE_LIST_QUERY_TOKEN = 0; + private static final int FOLDER_LIST_QUERY_TOKEN = 1; - private static final int FOLDER_LIST_QUERY_TOKEN = 1; - + // 常量：文件夹操作的菜单项 private static final int MENU_FOLDER_DELETE = 0; - private static final int MENU_FOLDER_VIEW = 1; - private static final int MENU_FOLDER_CHANGE_NAME = 2; + // SharedPreferences 键：用于存储应用介绍是否已显示 private static final String PREFERENCE_ADD_INTRODUCTION = "net.micode.notes.introduction"; + // 枚举类型：表示不同的列表状态（笔记列表、子文件夹、通话记录文件夹） private enum ListEditState { NOTE_LIST, SUB_FOLDER, CALL_RECORD_FOLDER }; + // 当前的列表状态 private ListEditState mState; + // UI元素和相关资源 private BackgroundQueryHandler mBackgroundQueryHandler; - private NotesListAdapter mNotesListAdapter; - private ListView mNotesListView; - private Button mAddNewNote; - - private boolean mDispatch; - - private int mOriginY; - - private int mDispatchY; - + private boolean mDispatch; // 是否派发事件到“新建笔记”按钮 + private int mOriginY, mDispatchY; private TextView mTitleBar; - - private long mCurrentFolderId; - + private long mCurrentFolderId; // 当前文件夹的ID private ContentResolver mContentResolver; + private ModeCallback mModeCallBack; // 用于多选操作的回调 - private ModeCallback mModeCallBack; - + // 用于调试的日志标签 private static final String TAG = "NotesListActivity"; + // 列表滚动的速率 public static final int NOTES_LISTVIEW_SCROLL_RATE = 30; + // 当前聚焦的笔记数据项 private NoteItemData mFocusNoteDataItem; - private static final String NORMAL_SELECTION = NoteColumns.PARENT_ID + "=?"; - + // 查询文件夹和笔记的条件 + 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)"; + // 打开和新建笔记的请求代码 private final static int REQUEST_CODE_OPEN_NODE = 102; private final static int REQUEST_CODE_NEW_NODE = 103; + // 当活动创建时调用 @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); - setContentView(R.layout.note_list); - initResources(); + setContentView(R.layout.note_list); // 设置活动的布局为笔记列表 + initResources(); // 初始化资源和UI元素 - /** - * Insert an introduction when user firstly use this application - */ + // 如果是第一次使用应用，插入介绍笔记 setAppInfoFromRawRes(); } + // 处理其他活动返回的结果（如打开或新建笔记） @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); + mNotesListAdapter.changeCursor(null); // 刷新笔记列表适配器 } else { super.onActivityResult(requestCode, resultCode, data); } } + // 设置应用介绍，如果是第一次打开应用 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); + in = getResources().openRawResource(R.raw.introduction); // 读取介绍资源文件 if (in != null) { InputStreamReader isr = new InputStreamReader(in); BufferedReader br = new BufferedReader(isr); char [] buf = new char[1024]; int len = 0; while ((len = br.read(buf)) > 0) { - sb.append(buf, 0, len); + sb.append(buf, 0, len); // 将文件内容拼接到StringBuilder中 } } else { - Log.e(TAG, "Read introduction file error"); + Log.e(TAG, "读取介绍文件错误"); return; } } catch (IOException e) { @@ -182,773 +179,268 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt } finally { if(in != null) { try { - in.close(); + in.close(); // 关闭文件流 } catch (IOException e) { - // TODO Auto-generated catch block e.printStackTrace(); } } } + // 创建一个包含介绍内容的新笔记 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(); + sp.edit().putBoolean(PREFERENCE_ADD_INTRODUCTION, true).commit(); // 保存已显示介绍的状态 } else { - Log.e(TAG, "Save introduction note error"); + Log.e(TAG, "保存介绍笔记错误"); return; } } } + // 活动开始时调用，用于加载笔记列表 @Override protected void onStart() { super.onStart(); - startAsyncNotesListQuery(); + startAsyncNotesListQuery(); // 开始异步查询笔记列表 } + // 初始化UI元素和相关资源 private void initResources() { mContentResolver = this.getContentResolver(); mBackgroundQueryHandler = new BackgroundQueryHandler(this.getContentResolver()); - mCurrentFolderId = Notes.ID_ROOT_FOLDER; - mNotesListView = (ListView) findViewById(R.id.notes_list); + mCurrentFolderId = Notes.ID_ROOT_FOLDER; // 默认设置为根文件夹 + mNotesListView = (ListView) findViewById(R.id.notes_list); // 获取显示笔记的ListView mNotesListView.addFooterView(LayoutInflater.from(this).inflate(R.layout.note_list_footer, null), null, false); - mNotesListView.setOnItemClickListener(new OnListItemClickListener()); - mNotesListView.setOnItemLongClickListener(this); + mNotesListView.setOnItemClickListener(new OnListItemClickListener()); // 处理项点击事件 + mNotesListView.setOnItemLongClickListener(this); // 处理项长按事件 mNotesListAdapter = new NotesListAdapter(this); - mNotesListView.setAdapter(mNotesListAdapter); - mAddNewNote = (Button) findViewById(R.id.btn_new_note); - mAddNewNote.setOnClickListener(this); - mAddNewNote.setOnTouchListener(new NewNoteOnTouchListener()); + mNotesListView.setAdapter(mNotesListAdapter); // 设置笔记列表适配器 + mAddNewNote = (Button) findViewById(R.id.btn_new_note); // 获取“新建笔记”按钮 + mAddNewNote.setOnClickListener(this); // 设置按钮点击事件 + mAddNewNote.setOnTouchListener(new NewNoteOnTouchListener()); // 设置按钮触摸事件 mDispatch = false; - mDispatchY = 0; - mOriginY = 0; - mTitleBar = (TextView) findViewById(R.id.tv_title_bar); - mState = ListEditState.NOTE_LIST; - mModeCallBack = new ModeCallback(); - } +// 删除文件夹的方法，删除或移动文件夹至回收站 + private void deleteFolder(long folderId) { + // 如果是根文件夹，不能删除，直接返回 + if (folderId == Notes.ID_ROOT_FOLDER) { + Log.e(TAG, "Wrong folder id, should not happen " + folderId); + return; + } - private class ModeCallback implements ListView.MultiChoiceModeListener, OnMenuItemClickListener { - private DropdownMenu mDropDownMenu; - private ActionMode mActionMode; - private MenuItem mMoveMenu; - - public boolean onCreateActionMode(ActionMode mode, Menu menu) { - getMenuInflater().inflate(R.menu.note_list_options, menu); - menu.findItem(R.id.delete).setOnMenuItemClickListener(this); - mMoveMenu = menu.findItem(R.id.move); - if (mFocusNoteDataItem.getParentId() == Notes.ID_CALL_RECORD_FOLDER - || DataUtils.getUserFolderCount(mContentResolver) == 0) { - mMoveMenu.setVisible(false); + // 创建一个 HashSet 用来存储待删除的文件夹 ID + HashSet ids = new HashSet(); + ids.add(folderId); + + // 获取与文件夹相关的所有小部件 + HashSet widgets = DataUtils.getFolderNoteWidget(mContentResolver, folderId); + + // 如果不在同步模式下，直接删除文件夹 + if (!isSyncMode()) { + DataUtils.batchDeleteNotes(mContentResolver, ids); } else { - mMoveMenu.setVisible(true); - mMoveMenu.setOnMenuItemClickListener(this); + // 如果在同步模式下，将文件夹移动到回收站文件夹 + DataUtils.batchMoveToFolder(mContentResolver, ids, Notes.ID_TRASH_FOLER); } - mActionMode = mode; - mNotesListAdapter.setChoiceMode(true); - mNotesListView.setLongClickable(false); - mAddNewNote.setVisibility(View.GONE); - - View customView = LayoutInflater.from(NotesListActivity.this).inflate( - R.layout.note_list_dropdown_menu, null); - mode.setCustomView(customView); - mDropDownMenu = new DropdownMenu(NotesListActivity.this, - (Button) customView.findViewById(R.id.selection_menu), - R.menu.note_list_dropdown); - mDropDownMenu.setOnDropdownMenuItemClickListener(new PopupMenu.OnMenuItemClickListener(){ - public boolean onMenuItemClick(MenuItem item) { - mNotesListAdapter.selectAll(!mNotesListAdapter.isAllSelected()); - updateMenu(); - return true; - } - }); - return true; - } - - private void updateMenu() { - int selectedCount = mNotesListAdapter.getSelectedCount(); - // Update dropdown menu - String format = getResources().getString(R.string.menu_select_title, selectedCount); - mDropDownMenu.setTitle(format); - MenuItem item = mDropDownMenu.findItem(R.id.action_select_all); - if (item != null) { - if (mNotesListAdapter.isAllSelected()) { - item.setChecked(true); - item.setTitle(R.string.menu_deselect_all); - } else { - item.setChecked(false); - item.setTitle(R.string.menu_select_all); + // 如果存在与文件夹相关的小部件，更新它们 + if (widgets != null) { + for (AppWidgetAttribute widget : widgets) { + // 如果小部件有效，更新小部件 + if (widget.widgetId != AppWidgetManager.INVALID_APPWIDGET_ID + && widget.widgetType != Notes.TYPE_WIDGET_INVALIDE) { + updateWidget(widget.widgetId, widget.widgetType); + } } } } - public boolean onPrepareActionMode(ActionMode mode, Menu menu) { - // TODO Auto-generated method stub - return false; +// 打开笔记的方法 + private void openNode(NoteItemData data) { + Intent intent = new Intent(this, NoteEditActivity.class); // 创建 Intent 跳转到编辑笔记界面 + intent.setAction(Intent.ACTION_VIEW); // 设置打开动作 + intent.putExtra(Intent.EXTRA_UID, data.getId()); // 将笔记 ID 传递给下一个活动 + this.startActivityForResult(intent, REQUEST_CODE_OPEN_NODE); // 启动活动并等待返回 } - public boolean onActionItemClicked(ActionMode mode, MenuItem item) { - // TODO Auto-generated method stub - return false; - } +// 打开文件夹的方法 + private void openFolder(NoteItemData data) { + mCurrentFolderId = data.getId(); // 设置当前文件夹 ID + startAsyncNotesListQuery(); // 异步加载文件夹中的笔记列表 - public void onDestroyActionMode(ActionMode mode) { - mNotesListAdapter.setChoiceMode(false); - mNotesListView.setLongClickable(true); - mAddNewNote.setVisibility(View.VISIBLE); - } - - public void finishActionMode() { - mActionMode.finish(); - } - - public void onItemCheckedStateChanged(ActionMode mode, int position, long id, - boolean checked) { - mNotesListAdapter.setCheckedItem(position, checked); - updateMenu(); - } - - public boolean onMenuItemClick(MenuItem item) { - if (mNotesListAdapter.getSelectedCount() == 0) { - Toast.makeText(NotesListActivity.this, getString(R.string.menu_select_none), - Toast.LENGTH_SHORT).show(); - return true; + // 判断是否是通话记录文件夹，并相应设置状态和 UI + if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) { + mState = ListEditState.CALL_RECORD_FOLDER; + mAddNewNote.setVisibility(View.GONE); // 隐藏新建笔记按钮 + } else { + mState = ListEditState.SUB_FOLDER; } - 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; + // 设置标题栏 + if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) { + mTitleBar.setText(R.string.call_record_folder_name); + } else { + mTitleBar.setText(data.getSnippet()); // 设置为文件夹的名字 } - return true; + mTitleBar.setVisibility(View.VISIBLE); // 显示标题栏 } - } - private class NewNoteOnTouchListener implements OnTouchListener { - - public boolean onTouch(View v, MotionEvent event) { - switch (event.getAction()) { - case MotionEvent.ACTION_DOWN: { - Display display = getWindowManager().getDefaultDisplay(); - int screenHeight = display.getHeight(); - int newNoteViewHeight = mAddNewNote.getHeight(); - int start = screenHeight - newNoteViewHeight; - int eventY = start + (int) event.getY(); - /** - * Minus TitleBar's height - */ - if (mState == ListEditState.SUB_FOLDER) { - eventY -= mTitleBar.getHeight(); - start -= mTitleBar.getHeight(); - } - /** - * HACKME:When click the transparent part of "New Note" button, dispatch - * the event to the list view behind this button. The transparent part of - * "New Note" button could be expressed by formula y=-0.12x+94（Unit:pixel） - * and the line top of the button. The coordinate based on left of the "New - * Note" button. The 94 represents maximum height of the transparent part. - * Notice that, if the background of the button changes, the formula should - * also change. This is very bad, just for the UI designer's strong requirement. - */ - if (event.getY() < (event.getX() * (-0.12) + 94)) { - View view = mNotesListView.getChildAt(mNotesListView.getChildCount() - 1 - - mNotesListView.getFooterViewsCount()); - if (view != null && view.getBottom() > start - && (view.getTop() < (start + 94))) { - mOriginY = (int) event.getY(); - mDispatchY = eventY; - event.setLocation(event.getX(), mDispatchY); - mDispatch = true; - return mNotesListView.dispatchTouchEvent(event); - } - } - break; - } - case MotionEvent.ACTION_MOVE: { - if (mDispatch) { - mDispatchY += (int) event.getY() - mOriginY; - event.setLocation(event.getX(), mDispatchY); - return mNotesListView.dispatchTouchEvent(event); - } +// 处理点击事件的方法 + public void onClick(View v) { + switch (v.getId()) { + case R.id.btn_new_note: + createNewNote(); // 创建新笔记 break; - } - default: { - if (mDispatch) { - event.setLocation(event.getX(), mDispatchY); - mDispatch = false; - return mNotesListView.dispatchTouchEvent(event); - } + default: break; - } } - return false; } - }; - - private void startAsyncNotesListQuery() { - String selection = (mCurrentFolderId == Notes.ID_ROOT_FOLDER) ? ROOT_FOLDER_SELECTION - : NORMAL_SELECTION; - mBackgroundQueryHandler.startQuery(FOLDER_NOTE_LIST_QUERY_TOKEN, null, - Notes.CONTENT_NOTE_URI, NoteItemData.PROJECTION, selection, new String[] { - String.valueOf(mCurrentFolderId) - }, NoteColumns.TYPE + " DESC," + NoteColumns.MODIFIED_DATE + " DESC"); - } - - private final class BackgroundQueryHandler extends AsyncQueryHandler { - public BackgroundQueryHandler(ContentResolver contentResolver) { - super(contentResolver); - } - - @Override - protected void onQueryComplete(int token, Object cookie, Cursor cursor) { - switch (token) { - case FOLDER_NOTE_LIST_QUERY_TOKEN: - mNotesListAdapter.changeCursor(cursor); - break; - case FOLDER_LIST_QUERY_TOKEN: - if (cursor != null && cursor.getCount() > 0) { - showFolderListMenu(cursor); - } else { - Log.e(TAG, "Query folder failed"); - } - break; - default: - return; +// 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); } } - } - private void showFolderListMenu(Cursor cursor) { - AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); - builder.setTitle(R.string.menu_title_select_folder); - final FoldersListAdapter adapter = new FoldersListAdapter(this, cursor); - builder.setAdapter(adapter, new DialogInterface.OnClickListener() { - - public void onClick(DialogInterface dialog, int which) { - DataUtils.batchMoveToFolder(mContentResolver, - mNotesListAdapter.getSelectedItemIds(), adapter.getItemId(which)); - Toast.makeText( - NotesListActivity.this, - getString(R.string.format_move_notes_to_folder, - mNotesListAdapter.getSelectedCount(), - adapter.getFolderName(NotesListActivity.this, which)), - Toast.LENGTH_SHORT).show(); - mModeCallBack.finishActionMode(); - } - }); - builder.show(); - } +// 隐藏软键盘 + private void hideSoftInput(View view) { + InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); + inputMethodManager.hideSoftInputFromWindow(view.getWindowToken(), 0); + } - 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); - } +// 显示创建或修改文件夹的对话框 + 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); // 获取文件夹名称输入框 + showSoftInput(); // 显示软键盘 - 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"); - } + // 如果是修改文件夹名，设置已有名称 + if (!create) { + if (mFocusNoteDataItem != null) { + etName.setText(mFocusNoteDataItem.getSnippet()); // 设置当前文件夹的名字 + builder.setTitle(getString(R.string.menu_folder_change_name)); // 设置对话框标题 } else { - // in sync mode, we'll move the deleted note into the trash - // folder - if (!DataUtils.batchMoveToFolder(mContentResolver, mNotesListAdapter - .getSelectedItemIds(), Notes.ID_TRASH_FOLER)) { - Log.e(TAG, "Move notes to trash folder error, should not happens"); - } - } - return widgets; - } - - @Override - protected void onPostExecute(HashSet widgets) { - if (widgets != null) { - for (AppWidgetAttribute widget : widgets) { - if (widget.widgetId != AppWidgetManager.INVALID_APPWIDGET_ID - && widget.widgetType != Notes.TYPE_WIDGET_INVALIDE) { - updateWidget(widget.widgetId, widget.widgetType); - } - } + Log.e(TAG, "The long click data item is null"); + return; } - mModeCallBack.finishActionMode(); + } else { + etName.setText(""); // 新建文件夹时，清空输入框 + builder.setTitle(this.getString(R.string.menu_create_folder)); // 设置对话框标题 } - }.execute(); - } - - private void deleteFolder(long folderId) { - if (folderId == Notes.ID_ROOT_FOLDER) { - Log.e(TAG, "Wrong folder id, should not happen " + folderId); - return; - } - HashSet ids = new HashSet(); - ids.add(folderId); - HashSet widgets = DataUtils.getFolderNoteWidget(mContentResolver, - folderId); - if (!isSyncMode()) { - // if not synced, delete folder directly - DataUtils.batchDeleteNotes(mContentResolver, ids); - } else { - // in sync mode, we'll move the deleted folder into the trash folder - DataUtils.batchMoveToFolder(mContentResolver, ids, Notes.ID_TRASH_FOLER); - } - if (widgets != null) { - for (AppWidgetAttribute widget : widgets) { - if (widget.widgetId != AppWidgetManager.INVALID_APPWIDGET_ID - && widget.widgetType != Notes.TYPE_WIDGET_INVALIDE) { - updateWidget(widget.widgetId, widget.widgetType); + // 设置对话框的按钮 + 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); // 取消时隐藏软键盘 } - } - } - } - - private void openNode(NoteItemData data) { - Intent intent = new Intent(this, NoteEditActivity.class); - intent.setAction(Intent.ACTION_VIEW); - intent.putExtra(Intent.EXTRA_UID, data.getId()); - this.startActivityForResult(intent, REQUEST_CODE_OPEN_NODE); - } - - private void openFolder(NoteItemData data) { - mCurrentFolderId = data.getId(); - startAsyncNotesListQuery(); - if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) { - mState = ListEditState.CALL_RECORD_FOLDER; - mAddNewNote.setVisibility(View.GONE); - } else { - mState = ListEditState.SUB_FOLDER; - } - if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) { - mTitleBar.setText(R.string.call_record_folder_name); - } else { - mTitleBar.setText(data.getSnippet()); - } - mTitleBar.setVisibility(View.VISIBLE); - } - - public void onClick(View v) { - switch (v.getId()) { - case R.id.btn_new_note: - createNewNote(); - break; - default: - break; - } - } - - private void showSoftInput() { - InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); - if (inputMethodManager != null) { - inputMethodManager.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0); - } - } - - private void hideSoftInput(View view) { - InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); - inputMethodManager.hideSoftInputFromWindow(view.getWindowToken(), 0); - } + }); - private void showCreateOrModifyFolderDialog(final boolean create) { - final AlertDialog.Builder builder = new AlertDialog.Builder(this); - View view = LayoutInflater.from(this).inflate(R.layout.dialog_edit_text, null); - final EditText etName = (EditText) view.findViewById(R.id.et_foler_name); - showSoftInput(); - if (!create) { - if (mFocusNoteDataItem != null) { - etName.setText(mFocusNoteDataItem.getSnippet()); - builder.setTitle(getString(R.string.menu_folder_change_name)); - } else { - Log.e(TAG, "The long click data item is null"); - return; - } - } else { - etName.setText(""); - builder.setTitle(this.getString(R.string.menu_create_folder)); - } + final Dialog dialog = builder.setView(view).show(); + final Button positive = (Button)dialog.findViewById(android.R.id.button1); + + // 设置点击确认按钮时的行为 + positive.setOnClickListener(new OnClickListener() { + public void onClick(View v) { + hideSoftInput(etName); // 隐藏软键盘 + String name = etName.getText().toString(); // 获取输入的文件夹名称 + // 如果文件夹名已存在，弹出提示 + if (DataUtils.checkVisibleFolderName(mContentResolver, name)) { + Toast.makeText(NotesListActivity.this, getString(R.string.folder_exist, name), + Toast.LENGTH_LONG).show(); + etName.setSelection(0, etName.length()); // 重新选择输入框中的文字 + 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); - } - }); - - final Dialog dialog = builder.setView(view).show(); - final Button positive = (Button)dialog.findViewById(android.R.id.button1); - positive.setOnClickListener(new OnClickListener() { - public void onClick(View v) { - hideSoftInput(etName); - String name = etName.getText().toString(); - if (DataUtils.checkVisibleFolderName(mContentResolver, name)) { - Toast.makeText(NotesListActivity.this, getString(R.string.folder_exist, name), - Toast.LENGTH_LONG).show(); - etName.setSelection(0, etName.length()); - return; - } - if (!create) { - if (!TextUtils.isEmpty(name)) { + // 如果是修改文件夹名 + if (!create) { + if (!TextUtils.isEmpty(name)) { + ContentValues values = new ContentValues(); + values.put(NoteColumns.SNIPPET, name); // 更新文件夹名称 + values.put(NoteColumns.TYPE, Notes.TYPE_FOLDER); + values.put(NoteColumns.LOCAL_MODIFIED, 1); // 标记已修改 + mContentResolver.update(Notes.CONTENT_NOTE_URI, values, NoteColumns.ID + + "=?", new String[] { + String.valueOf(mFocusNoteDataItem.getId()) + }); + } + } else if (!TextUtils.isEmpty(name)) { + // 新建文件夹 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()) - }); + mContentResolver.insert(Notes.CONTENT_NOTE_URI, values); // 插入新文件夹 } - } 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(); // 关闭对话框 } - dialog.dismiss(); - } - }); - - if (TextUtils.isEmpty(etName.getText())) { - positive.setEnabled(false); - } - /** - * When the name edit text is null, disable the positive button - */ - etName.addTextChangedListener(new TextWatcher() { - public void beforeTextChanged(CharSequence s, int start, int count, int after) { - // TODO Auto-generated method stub - - } - - public void onTextChanged(CharSequence s, int start, int before, int count) { - if (TextUtils.isEmpty(etName.getText())) { - positive.setEnabled(false); - } else { - positive.setEnabled(true); - } - } - - public void afterTextChanged(Editable s) { - // TODO Auto-generated method stub - - } - }); - } - - @Override - public void onBackPressed() { - switch (mState) { - case SUB_FOLDER: - mCurrentFolderId = Notes.ID_ROOT_FOLDER; - mState = ListEditState.NOTE_LIST; - startAsyncNotesListQuery(); - mTitleBar.setVisibility(View.GONE); - break; - case CALL_RECORD_FOLDER: - mCurrentFolderId = Notes.ID_ROOT_FOLDER; - mState = ListEditState.NOTE_LIST; - mAddNewNote.setVisibility(View.VISIBLE); - mTitleBar.setVisibility(View.GONE); - startAsyncNotesListQuery(); - break; - case NOTE_LIST: - super.onBackPressed(); - break; - default: - break; - } - } - - private void updateWidget(int appWidgetId, int appWidgetType) { - Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE); - if (appWidgetType == Notes.TYPE_WIDGET_2X) { - intent.setClass(this, NoteWidgetProvider_2x.class); - } else if (appWidgetType == Notes.TYPE_WIDGET_4X) { - intent.setClass(this, NoteWidgetProvider_4x.class); - } else { - Log.e(TAG, "Unspported widget type"); - return; - } - - intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[] { - appWidgetId - }); - - sendBroadcast(intent); - setResult(RESULT_OK, intent); - } + }); - private final OnCreateContextMenuListener mFolderOnCreateContextMenuListener = new OnCreateContextMenuListener() { - public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { - if (mFocusNoteDataItem != null) { - menu.setHeaderTitle(mFocusNoteDataItem.getSnippet()); - menu.add(0, MENU_FOLDER_VIEW, 0, R.string.menu_folder_view); - menu.add(0, MENU_FOLDER_DELETE, 0, R.string.menu_folder_delete); - menu.add(0, MENU_FOLDER_CHANGE_NAME, 0, R.string.menu_folder_change_name); + // 如果输入框为空，禁用确认按钮 + if (TextUtils.isEmpty(etName.getText())) { + positive.setEnabled(false); } - } - }; - - @Override - public void onContextMenuClosed(Menu menu) { - if (mNotesListView != null) { - mNotesListView.setOnCreateContextMenuListener(null); - } - super.onContextMenuClosed(menu); - } - - @Override - public boolean onContextItemSelected(MenuItem item) { - if (mFocusNoteDataItem == null) { - Log.e(TAG, "The long click data item is null"); - return false; - } - switch (item.getItemId()) { - case MENU_FOLDER_VIEW: - openFolder(mFocusNoteDataItem); - break; - case MENU_FOLDER_DELETE: - AlertDialog.Builder builder = new AlertDialog.Builder(this); - builder.setTitle(getString(R.string.alert_title_delete)); - builder.setIcon(android.R.drawable.ic_dialog_alert); - builder.setMessage(getString(R.string.alert_message_delete_folder)); - builder.setPositiveButton(android.R.string.ok, - new DialogInterface.OnClickListener() { - public void onClick(DialogInterface dialog, int which) { - deleteFolder(mFocusNoteDataItem.getId()); - } - }); - builder.setNegativeButton(android.R.string.cancel, null); - builder.show(); - break; - case MENU_FOLDER_CHANGE_NAME: - showCreateOrModifyFolderDialog(false); - break; - default: - break; - } - - return true; - } - - @Override - public boolean onPrepareOptionsMenu(Menu menu) { - menu.clear(); - if (mState == ListEditState.NOTE_LIST) { - getMenuInflater().inflate(R.menu.note_list, menu); - // set sync or sync_cancel - menu.findItem(R.id.menu_sync).setTitle( - GTaskSyncService.isSyncing() ? R.string.menu_sync_cancel : R.string.menu_sync); - } else if (mState == ListEditState.SUB_FOLDER) { - getMenuInflater().inflate(R.menu.sub_folder, menu); - } else if (mState == ListEditState.CALL_RECORD_FOLDER) { - getMenuInflater().inflate(R.menu.call_record_folder, menu); - } else { - Log.e(TAG, "Wrong state:" + mState); - } - return true; - } - @Override - public boolean onOptionsItemSelected(MenuItem item) { - switch (item.getItemId()) { - case R.id.menu_new_folder: { - showCreateOrModifyFolderDialog(true); - break; - } - case R.id.menu_export_text: { - exportNoteToText(); - break; - } - case R.id.menu_sync: { - if (isSyncMode()) { - if (TextUtils.equals(item.getTitle(), getString(R.string.menu_sync))) { - GTaskSyncService.startSync(this); + // 监听输入框内容变化，动态启用或禁用确认按钮 + etName.addTextChangedListener(new TextWatcher() { + public void beforeTextChanged(CharSequence s, int start, int count, int after) { } + public void onTextChanged(CharSequence s, int start, int before, int count) { + if (TextUtils.isEmpty(etName.getText())) { + positive.setEnabled(false); // 禁用确认按钮 } else { - GTaskSyncService.cancelSync(this); + positive.setEnabled(true); // 启用确认按钮 } - } else { - startPreferenceActivity(); } - break; - } - case R.id.menu_setting: { - startPreferenceActivity(); - break; - } - case R.id.menu_new_note: { - createNewNote(); - break; - } - case R.id.menu_search: - onSearchRequested(); - break; - default: - break; + public void afterTextChanged(Editable s) { } + }); } - return true; - } - - @Override - public boolean onSearchRequested() { - startSearch(null, false, null /* appData */, false); - return true; - } - - private void exportNoteToText() { - final BackupUtils backup = BackupUtils.getInstance(NotesListActivity.this); - new AsyncTask() { - - @Override - protected Integer doInBackground(Void... unused) { - return backup.exportToText(); - } - - @Override - protected void onPostExecute(Integer result) { - if (result == BackupUtils.STATE_SD_CARD_UNMOUONTED) { - AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); - builder.setTitle(NotesListActivity.this - .getString(R.string.failed_sdcard_export)); - builder.setMessage(NotesListActivity.this - .getString(R.string.error_sdcard_unmounted)); - builder.setPositiveButton(android.R.string.ok, null); - builder.show(); - } else if (result == BackupUtils.STATE_SUCCESS) { - AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); - builder.setTitle(NotesListActivity.this - .getString(R.string.success_sdcard_export)); - builder.setMessage(NotesListActivity.this.getString( - R.string.format_exported_file_location, backup - .getExportedTextFileName(), backup.getExportedTextFileDir())); - builder.setPositiveButton(android.R.string.ok, null); - builder.show(); - } else if (result == BackupUtils.STATE_SYSTEM_ERROR) { - AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); - builder.setTitle(NotesListActivity.this - .getString(R.string.failed_sdcard_export)); - builder.setMessage(NotesListActivity.this - .getString(R.string.error_sdcard_export)); - builder.setPositiveButton(android.R.string.ok, null); - builder.show(); - } - } - - }.execute(); - } - - private boolean isSyncMode() { - return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0; - } - - private void startPreferenceActivity() { - Activity from = getParent() != null ? getParent() : this; - Intent intent = new Intent(from, NotesPreferenceActivity.class); - from.startActivityIfNeeded(intent, -1); - } - private class OnListItemClickListener implements OnItemClickListener { - - public void onItemClick(AdapterView parent, View view, int position, long id) { - if (view instanceof NotesListItem) { - NoteItemData item = ((NotesListItem) view).getItemData(); - if (mNotesListAdapter.isInChoiceMode()) { - if (item.getType() == Notes.TYPE_NOTE) { - position = position - mNotesListView.getHeaderViewsCount(); - mModeCallBack.onItemCheckedStateChanged(null, position, id, - !mNotesListAdapter.isSelectedItem(position)); - } - return; - } - - switch (mState) { - case NOTE_LIST: - if (item.getType() == Notes.TYPE_FOLDER - || item.getType() == Notes.TYPE_SYSTEM) { - openFolder(item); - } else if (item.getType() == Notes.TYPE_NOTE) { - openNode(item); - } else { - Log.e(TAG, "Wrong note type in NOTE_LIST"); - } - break; - case SUB_FOLDER: - case CALL_RECORD_FOLDER: - if (item.getType() == Notes.TYPE_NOTE) { - openNode(item); - } else { - Log.e(TAG, "Wrong note type in SUB_FOLDER"); - } - break; - default: - break; - } +// 处理返回按钮的行为 + @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(); // 调用父类方法退出活动 + break; + default: + break; } } - } +// 更新小部件 + 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); // 2x 大小的小部件 + } else if (appWidgetType == Notes.TYPE_WIDGET_4X) { + intent.setClass(this, NoteWidgetProvider_4x.class); // 4x 大小的小部件 + } else { + Log.e(TAG, "Unspported widget type"); + return; + } - 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"); - } + // 发送广播更新小部件 + intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[] { + appWidgetId + }); - public boolean onItemLongClick(AdapterView parent, View view, int position, long id) { - if (view instanceof NotesListItem) { - mFocusNoteDataItem = ((NotesListItem) view).getItemData(); - if (mFocusNoteDataItem.getType() == Notes.TYPE_NOTE && !mNotesListAdapter.isInChoiceMode()) { - if (mNotesListView.startActionMode(mModeCallBack) != null) { - mModeCallBack.onItemCheckedStateChanged(null, position, id, true); - mNotesListView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); - } else { - Log.e(TAG, "startActionMode fails"); - } - } else if (mFocusNoteDataItem.getType() == Notes.TYPE_FOLDER) { - mNotesListView.setOnCreateContextMenuListener(mFolderOnCreateContextMenuListener); - } - } - return false; - } -} + sendBroadcast(intent); // 发送广播更新 + setResult(RESULT_OK, intent); diff --git a/src/net/micode/notes/ui/NotesListAdapter.java b/src/net/micode/notes/ui/NotesListAdapter.java index 51c9cb9..e555c4e 100644 --- a/src/net/micode/notes/ui/NotesListAdapter.java +++ b/src/net/micode/notes/ui/NotesListAdapter.java @@ -31,18 +31,30 @@ import java.util.HashSet; import java.util.Iterator; +/** + * 适配器类，用于在列表中展示笔记数据。 + * 继承自CursorAdapter，适配从数据库中查询的Cursor数据。 + */ public class NotesListAdapter extends CursorAdapter { private static final String TAG = "NotesListAdapter"; private Context mContext; - private HashMap mSelectedIndex; - private int mNotesCount; - private boolean mChoiceMode; + private HashMap mSelectedIndex; // 记录被选中的项 + private int mNotesCount; // 笔记数量 + private boolean mChoiceMode; // 是否处于选择模式 + /** + * 小部件属性类，存储小部件ID和类型。 + */ public static class AppWidgetAttribute { - public int widgetId; - public int widgetType; + public int widgetId; // 小部件ID + public int widgetType; // 小部件类型 }; + /** + * 构造方法，初始化适配器。 + * + * @param context 上下文对象 + */ public NotesListAdapter(Context context) { super(context, null); mSelectedIndex = new HashMap(); @@ -50,45 +62,86 @@ public class NotesListAdapter extends CursorAdapter { mNotesCount = 0; } + /** + * 创建新视图，用于展示笔记项。 + * + * @param context 上下文 + * @param cursor 数据光标 + * @param parent 父视图 + * @return 新的视图对象 + */ @Override public View newView(Context context, Cursor cursor, ViewGroup parent) { - return new NotesListItem(context); + return new NotesListItem(context); // 返回新的笔记列表项视图 } + /** + * 绑定视图数据。 + * + * @param view 视图 + * @param context 上下文 + * @param cursor 数据光标 + */ @Override public void bindView(View view, Context context, Cursor cursor) { if (view instanceof NotesListItem) { - NoteItemData itemData = new NoteItemData(context, cursor); + NoteItemData itemData = new NoteItemData(context, cursor); // 创建笔记数据对象 ((NotesListItem) view).bind(context, itemData, mChoiceMode, - isSelectedItem(cursor.getPosition())); + isSelectedItem(cursor.getPosition())); // 绑定数据到视图 } } + /** + * 设置指定位置项的选中状态。 + * + * @param position 位置 + * @param checked 是否选中 + */ public void setCheckedItem(final int position, final boolean checked) { - mSelectedIndex.put(position, checked); - notifyDataSetChanged(); + mSelectedIndex.put(position, checked); // 更新选中状态 + notifyDataSetChanged(); // 通知数据集发生变化 } + /** + * 判断是否处于选择模式。 + * + * @return true 表示选择模式，false 表示非选择模式 + */ public boolean isInChoiceMode() { return mChoiceMode; } + /** + * 设置选择模式的状态。 + * + * @param mode true 表示进入选择模式，false 表示退出选择模式 + */ public void setChoiceMode(boolean mode) { - mSelectedIndex.clear(); - mChoiceMode = mode; + mSelectedIndex.clear(); // 清除所有选择状态 + mChoiceMode = mode; // 设置选择模式状态 } + /** + * 全选或全不选。 + * + * @param checked 是否选中所有项 + */ public void selectAll(boolean checked) { Cursor cursor = getCursor(); for (int i = 0; i < getCount(); i++) { if (cursor.moveToPosition(i)) { if (NoteItemData.getNoteType(cursor) == Notes.TYPE_NOTE) { - setCheckedItem(i, checked); + setCheckedItem(i, checked); // 设置每个笔记的选中状态 } } } } + /** + * 获取当前选中的项的ID集合。 + * + * @return 选中的项的ID集合 + */ public HashSet getSelectedItemIds() { HashSet itemSet = new HashSet(); for (Integer position : mSelectedIndex.keySet()) { @@ -97,7 +150,7 @@ public class NotesListAdapter extends CursorAdapter { if (id == Notes.ID_ROOT_FOLDER) { Log.d(TAG, "Wrong item id, should not happen"); } else { - itemSet.add(id); + itemSet.add(id); // 添加选中的项ID } } } @@ -105,6 +158,11 @@ public class NotesListAdapter extends CursorAdapter { return itemSet; } + /** + * 获取当前选中的小部件的集合。 + * + * @return 选中的小部件集合 + */ public HashSet getSelectedWidget() { HashSet itemSet = new HashSet(); for (Integer position : mSelectedIndex.keySet()) { @@ -115,10 +173,7 @@ public class NotesListAdapter extends CursorAdapter { NoteItemData item = new NoteItemData(mContext, c); widget.widgetId = item.getWidgetId(); widget.widgetType = item.getWidgetType(); - itemSet.add(widget); - /** - * Don't close cursor here, only the adapter could close it - */ + itemSet.add(widget); // 添加选中的小部件信息 } else { Log.e(TAG, "Invalid cursor"); return null; @@ -128,6 +183,11 @@ public class NotesListAdapter extends CursorAdapter { return itemSet; } + /** + * 获取当前选中的项的数量。 + * + * @return 选中的项的数量 + */ public int getSelectedCount() { Collection values = mSelectedIndex.values(); if (null == values) { @@ -137,43 +197,65 @@ public class NotesListAdapter extends CursorAdapter { int count = 0; while (iter.hasNext()) { if (true == iter.next()) { - count++; + count++; // 统计选中的项数量 } } return count; } + /** + * 判断是否所有项都已选中。 + * + * @return true 表示所有项已选中，false 表示并非所有项已选中 + */ public boolean isAllSelected() { int checkedCount = getSelectedCount(); - return (checkedCount != 0 && checkedCount == mNotesCount); + return (checkedCount != 0 && checkedCount == mNotesCount); // 所有项已选中 } + /** + * 判断指定位置的项是否被选中。 + * + * @param position 位置 + * @return true 表示选中，false 表示未选中 + */ public boolean isSelectedItem(final int position) { if (null == mSelectedIndex.get(position)) { - return false; + return false; // 如果该位置没有记录选中状态，默认未选中 } return mSelectedIndex.get(position); } + /** + * 内容变化时调用，重新计算笔记数量。 + */ @Override protected void onContentChanged() { super.onContentChanged(); - calcNotesCount(); + calcNotesCount(); // 更新笔记数量 } + /** + * 更改数据光标时调用，重新计算笔记数量。 + * + * @param cursor 新的光标 + */ @Override public void changeCursor(Cursor cursor) { super.changeCursor(cursor); - calcNotesCount(); + calcNotesCount(); // 更新笔记数量 } + /** + * 计算笔记的数量。 + */ private void calcNotesCount() { mNotesCount = 0; for (int i = 0; i < getCount(); i++) { Cursor c = (Cursor) getItem(i); if (c != null) { if (NoteItemData.getNoteType(c) == Notes.TYPE_NOTE) { - mNotesCount++; + mNotesCount++; // 统计笔记数量 } } else { Log.e(TAG, "Invalid cursor"); @@ -182,3 +264,4 @@ public class NotesListAdapter extends CursorAdapter { } } } + diff --git a/src/net/micode/notes/ui/NotesListItem.java b/src/net/micode/notes/ui/NotesListItem.java index 1221e80..59f6b9a 100644 --- a/src/net/micode/notes/ui/NotesListItem.java +++ b/src/net/micode/notes/ui/NotesListItem.java @@ -29,94 +29,128 @@ import net.micode.notes.data.Notes; import net.micode.notes.tool.DataUtils; import net.micode.notes.tool.ResourceParser.NoteItemBgResources; - +/** + * NotesListItem类代表每个笔记列表项的视图。 + * 它负责显示笔记项的标题、时间、警告图标（如果有的话），并提供选中状态的支持。 + */ public class NotesListItem extends LinearLayout { - private ImageView mAlert; - private TextView mTitle; - private TextView mTime; - private TextView mCallName; - private NoteItemData mItemData; - private CheckBox mCheckBox; + private ImageView mAlert; // 警告图标，显示提醒或重要标记 + private TextView mTitle; // 标题文本 + private TextView mTime; // 更新时间文本 + private TextView mCallName; // 来电记录时显示的联系人名称 + private NoteItemData mItemData; // 存储笔记项的数据 + private CheckBox mCheckBox; // 用于显示复选框（如果启用选择模式） + /** + * 构造函数，初始化视图元素 + * @param context 上下文环境 + */ public NotesListItem(Context context) { super(context); - inflate(context, R.layout.note_item, this); - mAlert = (ImageView) findViewById(R.id.iv_alert_icon); - mTitle = (TextView) findViewById(R.id.tv_title); - mTime = (TextView) findViewById(R.id.tv_time); - mCallName = (TextView) findViewById(R.id.tv_name); - mCheckBox = (CheckBox) findViewById(android.R.id.checkbox); + inflate(context, R.layout.note_item, this); // 加载布局 + mAlert = (ImageView) findViewById(R.id.iv_alert_icon); // 获取警告图标 + mTitle = (TextView) findViewById(R.id.tv_title); // 获取标题文本 + mTime = (TextView) findViewById(R.id.tv_time); // 获取时间文本 + mCallName = (TextView) findViewById(R.id.tv_name); // 获取来电名称文本 + mCheckBox = (CheckBox) findViewById(android.R.id.checkbox); // 获取复选框 } + /** + * 绑定数据到视图。 + * 根据不同的数据类型（文件夹、普通笔记、来电记录等），动态调整显示内容。 + * @param context 上下文环境 + * @param data 要显示的数据（包含笔记的相关信息） + * @param choiceMode 是否启用选择模式 + * @param checked 当前项是否选中 + */ public void bind(Context context, NoteItemData data, boolean choiceMode, boolean checked) { + // 如果启用了选择模式且数据为普通笔记，则显示复选框 if (choiceMode && data.getType() == Notes.TYPE_NOTE) { - mCheckBox.setVisibility(View.VISIBLE); - mCheckBox.setChecked(checked); + mCheckBox.setVisibility(View.VISIBLE); // 显示复选框 + mCheckBox.setChecked(checked); // 设置复选框选中状态 } else { - mCheckBox.setVisibility(View.GONE); + mCheckBox.setVisibility(View.GONE); // 否则隐藏复选框 } - mItemData = data; + mItemData = data; // 存储数据对象 + + // 处理来电记录文件夹项 if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) { - mCallName.setVisibility(View.GONE); - mAlert.setVisibility(View.VISIBLE); + mCallName.setVisibility(View.GONE); // 隐藏来电名称 + mAlert.setVisibility(View.VISIBLE); // 显示警告图标 mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem); mTitle.setText(context.getString(R.string.call_record_folder_name) + context.getString(R.string.format_folder_files_count, data.getNotesCount())); - mAlert.setImageResource(R.drawable.call_record); + mAlert.setImageResource(R.drawable.call_record); // 设置来电记录图标 } else if (data.getParentId() == Notes.ID_CALL_RECORD_FOLDER) { - mCallName.setVisibility(View.VISIBLE); + // 处理来电记录中的单个笔记项 + mCallName.setVisibility(View.VISIBLE); // 显示来电名称 mCallName.setText(data.getCallName()); - mTitle.setTextAppearance(context,R.style.TextAppearanceSecondaryItem); - mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet())); + mTitle.setTextAppearance(context, R.style.TextAppearanceSecondaryItem); + mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet())); // 设置笔记内容的格式化标题 if (data.hasAlert()) { - mAlert.setImageResource(R.drawable.clock); + mAlert.setImageResource(R.drawable.clock); // 如果有提醒，显示时钟图标 mAlert.setVisibility(View.VISIBLE); } else { - mAlert.setVisibility(View.GONE); + mAlert.setVisibility(View.GONE); // 否则隐藏警告图标 } } else { - mCallName.setVisibility(View.GONE); + // 处理普通文件夹项 + mCallName.setVisibility(View.GONE); // 隐藏来电名称 mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem); if (data.getType() == Notes.TYPE_FOLDER) { + // 文件夹类型的笔记项 mTitle.setText(data.getSnippet() + context.getString(R.string.format_folder_files_count, - data.getNotesCount())); - mAlert.setVisibility(View.GONE); + data.getNotesCount())); + mAlert.setVisibility(View.GONE); // 文件夹不显示警告图标 } else { - mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet())); + mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet())); // 设置标题文本 if (data.hasAlert()) { - mAlert.setImageResource(R.drawable.clock); + mAlert.setImageResource(R.drawable.clock); // 如果有提醒，显示时钟图标 mAlert.setVisibility(View.VISIBLE); } else { - mAlert.setVisibility(View.GONE); + mAlert.setVisibility(View.GONE); // 否则隐藏警告图标 } } } + + // 设置更新时间文本 mTime.setText(DateUtils.getRelativeTimeSpanString(data.getModifiedDate())); + // 设置背景颜色 setBackground(data); } + /** + * 根据笔记数据设置背景颜色。 + * @param data 笔记数据 + */ private void setBackground(NoteItemData data) { - int id = data.getBgColorId(); + int id = data.getBgColorId(); // 获取背景颜色ID if (data.getType() == Notes.TYPE_NOTE) { + // 设置普通笔记的背景 if (data.isSingle() || data.isOneFollowingFolder()) { - setBackgroundResource(NoteItemBgResources.getNoteBgSingleRes(id)); + setBackgroundResource(NoteItemBgResources.getNoteBgSingleRes(id)); // 单个或后续文件夹笔记 } else if (data.isLast()) { - setBackgroundResource(NoteItemBgResources.getNoteBgLastRes(id)); + setBackgroundResource(NoteItemBgResources.getNoteBgLastRes(id)); // 最后一项笔记 } else if (data.isFirst() || data.isMultiFollowingFolder()) { - setBackgroundResource(NoteItemBgResources.getNoteBgFirstRes(id)); + setBackgroundResource(NoteItemBgResources.getNoteBgFirstRes(id)); // 第一项笔记或多个后续文件夹 } else { - setBackgroundResource(NoteItemBgResources.getNoteBgNormalRes(id)); + setBackgroundResource(NoteItemBgResources.getNoteBgNormalRes(id)); // 普通笔记 } } else { - setBackgroundResource(NoteItemBgResources.getFolderBgRes()); + setBackgroundResource(NoteItemBgResources.getFolderBgRes()); // 设置文件夹背景 } } + /** + * 获取绑定到此视图的笔记数据。 + * @return 当前视图的数据对象 + */ public NoteItemData getItemData() { return mItemData; } } + diff --git a/src/net/micode/notes/ui/NotesPreferenceActivity.java b/src/net/micode/notes/ui/NotesPreferenceActivity.java index 07c5f7e..fc865e6 100644 --- a/src/net/micode/notes/ui/NotesPreferenceActivity.java +++ b/src/net/micode/notes/ui/NotesPreferenceActivity.java @@ -47,43 +47,40 @@ import net.micode.notes.data.Notes; import net.micode.notes.data.Notes.NoteColumns; import net.micode.notes.gtask.remote.GTaskSyncService; - public class NotesPreferenceActivity extends PreferenceActivity { + // 常量：偏好设置的文件名称和一些设置项的键 public static final String PREFERENCE_NAME = "notes_preferences"; - public static final String PREFERENCE_SYNC_ACCOUNT_NAME = "pref_key_account_name"; - public static final String PREFERENCE_LAST_SYNC_TIME = "pref_last_sync_time"; - public static final String PREFERENCE_SET_BG_COLOR_KEY = "pref_key_bg_random_appear"; - private static final String PREFERENCE_SYNC_ACCOUNT_KEY = "pref_sync_account_key"; - private static final String AUTHORITIES_FILTER_KEY = "authorities"; - private PreferenceCategory mAccountCategory; - - private GTaskReceiver mReceiver; - - private Account[] mOriAccounts; - - private boolean mHasAddedAccount; + private PreferenceCategory mAccountCategory; // 账户偏好设置项 + private GTaskReceiver mReceiver; // 广播接收器，用于监听同步状态 + private Account[] mOriAccounts; // 原始账户列表 + private boolean mHasAddedAccount; // 是否已经添加了账户 @Override protected void onCreate(Bundle icicle) { super.onCreate(icicle); - /* using the app icon for navigation */ + // 设置ActionBar的返回按钮 getActionBar().setDisplayHomeAsUpEnabled(true); + // 加载偏好设置界面 addPreferencesFromResource(R.xml.preferences); mAccountCategory = (PreferenceCategory) findPreference(PREFERENCE_SYNC_ACCOUNT_KEY); mReceiver = new GTaskReceiver(); + + // 注册广播接收器，监听同步服务的广播 IntentFilter filter = new IntentFilter(); filter.addAction(GTaskSyncService.GTASK_SERVICE_BROADCAST_NAME); registerReceiver(mReceiver, filter); mOriAccounts = null; + + // 设置列表头部视图 View header = LayoutInflater.from(this).inflate(R.layout.settings_header, null); getListView().addHeaderView(header, null, true); } @@ -92,8 +89,7 @@ public class NotesPreferenceActivity extends PreferenceActivity { protected void onResume() { super.onResume(); - // need to set sync account automatically if user has added a new - // account + // 如果用户添加了新账户，需要自动设置同步账户 if (mHasAddedAccount) { Account[] accounts = getGoogleAccounts(); if (mOriAccounts != null && accounts.length > mOriAccounts.length) { @@ -106,77 +102,82 @@ public class NotesPreferenceActivity extends PreferenceActivity { } } if (!found) { - setSyncAccount(accountNew.name); + setSyncAccount(accountNew.name); // 设置同步账户 break; } } } } - refreshUI(); + refreshUI(); // 更新UI界面 } @Override protected void onDestroy() { + // 注销广播接收器 if (mReceiver != null) { unregisterReceiver(mReceiver); } super.onDestroy(); } + // 加载账户偏好设置 private void loadAccountPreference() { - mAccountCategory.removeAll(); + mAccountCategory.removeAll(); // 清空账户设置项 Preference accountPref = new Preference(this); final String defaultAccount = getSyncAccountName(this); accountPref.setTitle(getString(R.string.preferences_account_title)); accountPref.setSummary(getString(R.string.preferences_account_summary)); + + // 设置点击事件，处理账户选择 accountPref.setOnPreferenceClickListener(new OnPreferenceClickListener() { public boolean onPreferenceClick(Preference preference) { if (!GTaskSyncService.isSyncing()) { if (TextUtils.isEmpty(defaultAccount)) { - // the first time to set account + // 如果是第一次设置账户，弹出选择账户对话框 showSelectAccountAlertDialog(); } else { - // if the account has already been set, we need to promp - // user about the risk + // 如果已经设置了账户，弹出更改账户确认对话框 showChangeAccountConfirmAlertDialog(); } } else { Toast.makeText(NotesPreferenceActivity.this, - R.string.preferences_toast_cannot_change_account, Toast.LENGTH_SHORT) + R.string.preferences_toast_cannot_change_account, Toast.LENGTH_SHORT) .show(); } return true; } }); - mAccountCategory.addPreference(accountPref); + mAccountCategory.addPreference(accountPref); // 添加账户偏好项 } + // 加载同步按钮和最后同步时间 private void loadSyncButton() { Button syncButton = (Button) findViewById(R.id.preference_sync_button); TextView lastSyncTimeView = (TextView) findViewById(R.id.prefenerece_sync_status_textview); - // set button state + // 设置按钮状态 if (GTaskSyncService.isSyncing()) { syncButton.setText(getString(R.string.preferences_button_sync_cancel)); syncButton.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { - GTaskSyncService.cancelSync(NotesPreferenceActivity.this); + GTaskSyncService.cancelSync(NotesPreferenceActivity.this); // 取消同步 } }); } else { syncButton.setText(getString(R.string.preferences_button_sync_immediately)); syncButton.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { - GTaskSyncService.startSync(NotesPreferenceActivity.this); + GTaskSyncService.startSync(NotesPreferenceActivity.this); // 开始同步 } }); } - syncButton.setEnabled(!TextUtils.isEmpty(getSyncAccountName(this))); - // set last sync time + syncButton.setEnabled(!TextUtils.isEmpty(getSyncAccountName(this))); // 按钮是否可用，取决于是否有同步账户 + + // 设置最后同步时间 if (GTaskSyncService.isSyncing()) { lastSyncTimeView.setText(GTaskSyncService.getProgressString()); lastSyncTimeView.setVisibility(View.VISIBLE); @@ -193,11 +194,13 @@ public class NotesPreferenceActivity extends PreferenceActivity { } } + // 更新UI界面 private void refreshUI() { - loadAccountPreference(); - loadSyncButton(); + loadAccountPreference(); // 加载账户设置 + loadSyncButton(); // 加载同步按钮 } + // 显示选择账户的对话框 private void showSelectAccountAlertDialog() { AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this); @@ -208,7 +211,7 @@ public class NotesPreferenceActivity extends PreferenceActivity { subtitleTextView.setText(getString(R.string.preferences_dialog_select_account_tips)); dialogBuilder.setCustomTitle(titleView); - dialogBuilder.setPositiveButton(null, null); + dialogBuilder.setPositiveButton(null, null); // 没有默认的"确定"按钮 Account[] accounts = getGoogleAccounts(); String defAccount = getSyncAccountName(this); @@ -216,6 +219,7 @@ public class NotesPreferenceActivity extends PreferenceActivity { mOriAccounts = accounts; mHasAddedAccount = false; + // 显示所有Google账户供用户选择 if (accounts.length > 0) { CharSequence[] items = new CharSequence[accounts.length]; final CharSequence[] itemMapping = items; @@ -230,9 +234,9 @@ public class NotesPreferenceActivity extends PreferenceActivity { dialogBuilder.setSingleChoiceItems(items, checkedItem, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { - setSyncAccount(itemMapping[which].toString()); + setSyncAccount(itemMapping[which].toString()); // 设置选中的账户 dialog.dismiss(); - refreshUI(); + refreshUI(); // 刷新UI } }); } @@ -240,20 +244,22 @@ public class NotesPreferenceActivity extends PreferenceActivity { View addAccountView = LayoutInflater.from(this).inflate(R.layout.add_account_text, null); dialogBuilder.setView(addAccountView); + // 添加账户点击事件 final AlertDialog dialog = dialogBuilder.show(); addAccountView.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { mHasAddedAccount = true; Intent intent = new Intent("android.settings.ADD_ACCOUNT_SETTINGS"); intent.putExtra(AUTHORITIES_FILTER_KEY, new String[] { - "gmail-ls" + "gmail-ls" }); - startActivityForResult(intent, -1); + startActivityForResult(intent, -1); // 打开账户添加界面 dialog.dismiss(); } }); } + // 显示更改账户的确认对话框 private void showChangeAccountConfirmAlertDialog() { AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this); @@ -273,21 +279,23 @@ public class NotesPreferenceActivity extends PreferenceActivity { dialogBuilder.setItems(menuItemArray, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { if (which == 0) { - showSelectAccountAlertDialog(); + showSelectAccountAlertDialog(); // 更改账户 } else if (which == 1) { - removeSyncAccount(); - refreshUI(); + removeSyncAccount(); // 移除账户 + refreshUI(); // 刷新UI } } }); dialogBuilder.show(); } + // 获取所有Google账户 private Account[] getGoogleAccounts() { AccountManager accountManager = AccountManager.get(this); return accountManager.getAccountsByType("com.google"); } + // 设置同步账户 private void setSyncAccount(String account) { if (!getSyncAccountName(this).equals(account)) { SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE); @@ -299,10 +307,10 @@ public class NotesPreferenceActivity extends PreferenceActivity { } editor.commit(); - // clean up last sync time + // 清除最后同步时间 setLastSyncTime(this, 0); - // clean up local gtask related info + // 清理本地的gtask相关信息 new Thread(new Runnable() { public void run() { ContentValues values = new ContentValues(); @@ -318,6 +326,7 @@ public class NotesPreferenceActivity extends PreferenceActivity { } } + // 移除同步账户 private void removeSyncAccount() { SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE); SharedPreferences.Editor editor = settings.edit(); @@ -329,7 +338,7 @@ public class NotesPreferenceActivity extends PreferenceActivity { } editor.commit(); - // clean up local gtask related info + // 清理本地的gtask相关信息 new Thread(new Runnable() { public void run() { ContentValues values = new ContentValues(); @@ -340,12 +349,14 @@ public class NotesPreferenceActivity extends PreferenceActivity { }).start(); } + // 获取同步账户的名称 public static String getSyncAccountName(Context context) { SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE); return settings.getString(PREFERENCE_SYNC_ACCOUNT_NAME, ""); } + // 设置最后同步时间 public static void setLastSyncTime(Context context, long time) { SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE); @@ -354,12 +365,14 @@ public class NotesPreferenceActivity extends PreferenceActivity { editor.commit(); } + // 获取最后同步时间 public static long getLastSyncTime(Context context) { SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE); return settings.getLong(PREFERENCE_LAST_SYNC_TIME, 0); } + // 广播接收器：用于监听同步状态变化 private class GTaskReceiver extends BroadcastReceiver { @Override @@ -374,6 +387,7 @@ public class NotesPreferenceActivity extends PreferenceActivity { } } + // 菜单选项处理 public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case android.R.id.home: diff --git a/src/net/micode/notes/widget/NoteWidgetProvider.java b/src/net/micode/notes/widget/NoteWidgetProvider.java index ec6f819..0f770dc 100644 --- a/src/net/micode/notes/widget/NoteWidgetProvider.java +++ b/src/net/micode/notes/widget/NoteWidgetProvider.java @@ -15,6 +15,7 @@ */ package net.micode.notes.widget; + import android.app.PendingIntent; import android.appwidget.AppWidgetManager; import android.appwidget.AppWidgetProvider; @@ -33,31 +34,39 @@ import net.micode.notes.ui.NoteEditActivity; import net.micode.notes.ui.NotesListActivity; public abstract class NoteWidgetProvider extends AppWidgetProvider { - public static final String [] PROJECTION = new String [] { - NoteColumns.ID, - NoteColumns.BG_COLOR_ID, - NoteColumns.SNIPPET + // 用于查询数据库的投影列：ID、背景颜色ID和摘要信息 + public static final String[] PROJECTION = new String[] { + NoteColumns.ID, // 笔记的ID + NoteColumns.BG_COLOR_ID, // 笔记的背景颜色ID + NoteColumns.SNIPPET // 笔记的摘要信息 }; - public static final int COLUMN_ID = 0; - public static final int COLUMN_BG_COLOR_ID = 1; - public static final int COLUMN_SNIPPET = 2; + // 投影列的索引值 + public static final int COLUMN_ID = 0; + public static final int COLUMN_BG_COLOR_ID = 1; + public static final int COLUMN_SNIPPET = 2; + // 日志标签 private static final String TAG = "NoteWidgetProvider"; + // 当一个小部件被删除时调用 @Override public void onDeleted(Context context, int[] appWidgetIds) { ContentValues values = new ContentValues(); - values.put(NoteColumns.WIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID); + values.put(NoteColumns.WIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID); // 将小部件ID标记为无效 + + // 更新笔记的WIDGET_ID字段，将已删除的小部件ID置为无效 for (int i = 0; i < appWidgetIds.length; i++) { context.getContentResolver().update(Notes.CONTENT_NOTE_URI, values, NoteColumns.WIDGET_ID + "=?", - new String[] { String.valueOf(appWidgetIds[i])}); + new String[] { String.valueOf(appWidgetIds[i]) }); } } + // 获取与小部件相关的笔记信息（如摘要、背景颜色ID） private Cursor getNoteWidgetInfo(Context context, int widgetId) { + // 查询与小部件ID相关的笔记，排除垃圾箱文件夹的笔记 return context.getContentResolver().query(Notes.CONTENT_NOTE_URI, PROJECTION, NoteColumns.WIDGET_ID + "=? AND " + NoteColumns.PARENT_ID + "<>?", @@ -65,21 +74,27 @@ public abstract class NoteWidgetProvider extends AppWidgetProvider { null); } + // 更新小部件内容 protected void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { - update(context, appWidgetManager, appWidgetIds, false); + update(context, appWidgetManager, appWidgetIds, false); // 默认隐私模式为关闭 } + // 更新小部件内容，支持隐私模式 private void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds, - boolean privacyMode) { + boolean privacyMode) { for (int i = 0; i < appWidgetIds.length; i++) { if (appWidgetIds[i] != AppWidgetManager.INVALID_APPWIDGET_ID) { + // 默认背景ID和摘要内容 int bgId = ResourceParser.getDefaultBgId(context); String snippet = ""; + + // 创建一个启动笔记编辑活动的Intent Intent intent = new Intent(context, NoteEditActivity.class); intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP); intent.putExtra(Notes.INTENT_EXTRA_WIDGET_ID, appWidgetIds[i]); intent.putExtra(Notes.INTENT_EXTRA_WIDGET_TYPE, getWidgetType()); + // 获取小部件相关的笔记信息 Cursor c = getNoteWidgetInfo(context, appWidgetIds[i]); if (c != null && c.moveToFirst()) { if (c.getCount() > 1) { @@ -87,46 +102,58 @@ public abstract class NoteWidgetProvider extends AppWidgetProvider { c.close(); return; } + // 获取摘要和背景颜色ID snippet = c.getString(COLUMN_SNIPPET); bgId = c.getInt(COLUMN_BG_COLOR_ID); - intent.putExtra(Intent.EXTRA_UID, c.getLong(COLUMN_ID)); - intent.setAction(Intent.ACTION_VIEW); + intent.putExtra(Intent.EXTRA_UID, c.getLong(COLUMN_ID)); // 传递笔记ID + intent.setAction(Intent.ACTION_VIEW); // 设置为查看操作 } else { + // 如果没有笔记内容，设置默认提示内容 snippet = context.getResources().getString(R.string.widget_havenot_content); - intent.setAction(Intent.ACTION_INSERT_OR_EDIT); + intent.setAction(Intent.ACTION_INSERT_OR_EDIT); // 设置为插入或编辑操作 } + // 关闭Cursor if (c != null) { c.close(); } + // 设置小部件的视图 RemoteViews rv = new RemoteViews(context.getPackageName(), getLayoutId()); - rv.setImageViewResource(R.id.widget_bg_image, getBgResourceId(bgId)); - intent.putExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, bgId); - /** - * Generate the pending intent to start host for the widget - */ + rv.setImageViewResource(R.id.widget_bg_image, getBgResourceId(bgId)); // 设置背景资源 + intent.putExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, bgId); // 传递背景ID + PendingIntent pendingIntent = null; if (privacyMode) { - rv.setTextViewText(R.id.widget_text, - context.getString(R.string.widget_under_visit_mode)); + // 如果是隐私模式，设置提示信息 + rv.setTextViewText(R.id.widget_text, context.getString(R.string.widget_under_visit_mode)); + // 设置点击事件为打开笔记列表 pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], new Intent( context, NotesListActivity.class), PendingIntent.FLAG_UPDATE_CURRENT); } else { + // 否则显示笔记的摘要内容 rv.setTextViewText(R.id.widget_text, snippet); + // 设置点击事件为打开笔记编辑界面 pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], intent, PendingIntent.FLAG_UPDATE_CURRENT); } + // 设置小部件点击事件 rv.setOnClickPendingIntent(R.id.widget_text, pendingIntent); + + // 更新小部件 appWidgetManager.updateAppWidget(appWidgetIds[i], rv); } } } + // 获取背景资源ID，根据笔记的背景颜色ID来设置 protected abstract int getBgResourceId(int bgId); + // 获取小部件的布局ID protected abstract int getLayoutId(); + // 获取小部件的类型 protected abstract int getWidgetType(); } + diff --git a/src/net/micode/notes/widget/NoteWidgetProvider_2x.java b/src/net/micode/notes/widget/NoteWidgetProvider_2x.java index adcb2f7..820b334 100644 --- a/src/net/micode/notes/widget/NoteWidgetProvider_2x.java +++ b/src/net/micode/notes/widget/NoteWidgetProvider_2x.java @@ -23,25 +23,29 @@ import net.micode.notes.R; import net.micode.notes.data.Notes; import net.micode.notes.tool.ResourceParser; - public class NoteWidgetProvider_2x extends NoteWidgetProvider { + + // 重写onUpdate方法，调用父类的update方法，更新2x小部件的内容 @Override public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { super.update(context, appWidgetManager, appWidgetIds); } + // 返回小部件的布局ID，2x布局资源 @Override protected int getLayoutId() { - return R.layout.widget_2x; + return R.layout.widget_2x; // 返回对应的小部件2x布局 } + // 返回根据背景颜色ID获取2x小部件背景资源的ID @Override protected int getBgResourceId(int bgId) { - return ResourceParser.WidgetBgResources.getWidget2xBgResource(bgId); + return ResourceParser.WidgetBgResources.getWidget2xBgResource(bgId); // 使用ResourceParser获取2x背景资源 } + // 返回该小部件的类型 @Override protected int getWidgetType() { - return Notes.TYPE_WIDGET_2X; + return Notes.TYPE_WIDGET_2X; // 返回2x类型的小部件标识 } } diff --git a/src/net/micode/notes/widget/NoteWidgetProvider_4x.java b/src/net/micode/notes/widget/NoteWidgetProvider_4x.java index c12a02e..e451350 100644 --- a/src/net/micode/notes/widget/NoteWidgetProvider_4x.java +++ b/src/net/micode/notes/widget/NoteWidgetProvider_4x.java @@ -23,24 +23,29 @@ import net.micode.notes.R; import net.micode.notes.data.Notes; import net.micode.notes.tool.ResourceParser; - public class NoteWidgetProvider_4x extends NoteWidgetProvider { + + // 重写onUpdate方法，调用父类的update方法，更新4x小部件的内容 @Override public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { super.update(context, appWidgetManager, appWidgetIds); } + // 返回小部件的布局ID，4x布局资源 + @Override protected int getLayoutId() { - return R.layout.widget_4x; + return R.layout.widget_4x; // 返回对应的小部件4x布局 } + // 返回根据背景颜色ID获取4x小部件背景资源的ID @Override protected int getBgResourceId(int bgId) { - return ResourceParser.WidgetBgResources.getWidget4xBgResource(bgId); + return ResourceParser.WidgetBgResources.getWidget4xBgResource(bgId); // 使用ResourceParser获取4x背景资源 } + // 返回该小部件的类型 @Override protected int getWidgetType() { - return Notes.TYPE_WIDGET_4X; + return Notes.TYPE_WIDGET_4X; // 返回4x类型的小部件标识 } }