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other/07_210440246蔡安南_代码标注/data/Contact.java

@@ -0,0 +1,70 @@
+package net.micode.notes.data;
+
+import android.content.Context;
+import android.database.Cursor;
+import android.provider.ContactsContract.CommonDataKinds.Phone;
+import android.provider.ContactsContract.Data;
+import android.telephony.PhoneNumberUtils;
+import android.util.Log;
+
+import java.util.HashMap;
+
+public class Contact {
+    private static HashMap<String, String> sContactCache;
+    private static final String TAG = "Contact";
+
+    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 "
+            + "(SELECT raw_contact_id "
+            + " FROM phone_lookup"
+            + " WHERE min_match = '+')";
+
+     /**
+     * 从通讯录中获取给定电话号码对应的联系人名字
+     * @param context 应用程序上下文
+     * @param phoneNumber 电话号码
+     * @return 联系人名字，如果未找到则返回null
+     */
+    public static String getContact(Context context, String phoneNumber) {
+        // 如果缓存为空，则初始化一个HashMap对象作为缓存
+        if (sContactCache == null) {
+            sContactCache = new HashMap<String, String>();
+        }
+
+        // 如果缓存中存在该电话号码对应的联系人名字，则直接返回
+        if (sContactCache.containsKey(phoneNumber)) {
+            return sContactCache.get(phoneNumber);
+        }
+
+        // 构造查询条件，使用给定的电话号码作为参数
+        String selection = CALLER_ID_SELECTION.replace("+",
+                PhoneNumberUtils.toCallerIDMinMatch(phoneNumber));
+        // 查询通讯录数据库，查询结果包含指定电话号码的联系人名字
+        Cursor cursor = context.getContentResolver().query(
+                Data.CONTENT_URI,
+                new String[] { Phone.DISPLAY_NAME },
+                selection,
+                new String[] { phoneNumber },
+                null);
+
+        // 如果查询结果非空，则获取第一条结果中的联系人名字，并将其存入缓存
+        if (cursor != null && cursor.moveToFirst()) {
+            try {
+                String name = cursor.getString(0);
+                sContactCache.put(phoneNumber, name); // 将联系人名字存入缓存
+                return name;
+            } catch (IndexOutOfBoundsException e) {
+                Log.e(TAG, " Cursor get string error " + e.toString());
+                return null;
+            } finally {
+                cursor.close();
+            }
+        } else {
+            // 如果查询结果为空，则记录日志并返回null
+            Log.d(TAG, "No contact matched with number:" + phoneNumber);
+            return null;
+        }
+    }
+
+}

other/07_210440246蔡安南_代码标注/data/Notes.java

@@ -0,0 +1,268 @@
+// 对便签本身进行操作
+
+package net.micode.notes.data;
+
+import android.net.Uri;
+public class Notes {
+    public static final String AUTHORITY = "micode_notes";
+    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;
+
+    /**
+     * 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
+     */
+    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;
+
+    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";
+    public static final String INTENT_EXTRA_WIDGET_TYPE = "net.micode.notes.widget_type";
+    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;
+
+    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
+     */
+    public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" + AUTHORITY + "/note");
+
+    /**
+     * Uri to query data
+     */
+    public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data");
+
+    public interface NoteColumns {
+        // 建立便签独有id
+        /**
+         * The unique ID for a row
+         * <P> Type: INTEGER (long) </P>
+         */
+        public static final String ID = "_id";
+
+        // 确立母文件夹位置
+        /**
+         * The parent's id for note or folder
+         * <P> Type: INTEGER (long) </P>
+         */
+        public static final String PARENT_ID = "parent_id";
+
+        // 写入便签数据
+        /**
+         * Created data for note or folder
+         * <P> Type: INTEGER (long) </P>
+         */
+        public static final String CREATED_DATE = "created_date";
+
+        /**
+         * Latest modified date
+         * <P> Type: INTEGER (long) </P>
+         */
+        public static final String MODIFIED_DATE = "modified_date";
+
+
+        /**
+         * Alert date
+         * <P> Type: INTEGER (long) </P>
+         */
+        public static final String ALERTED_DATE = "alert_date";
+
+        /**
+         * Folder's name or text content of note
+         * <P> Type: TEXT </P>
+         */
+        public static final String SNIPPET = "snippet";
+
+        /**
+         * Note's widget id
+         * <P> Type: INTEGER (long) </P>
+         */
+        public static final String WIDGET_ID = "widget_id";
+
+        /**
+         * Note's widget type
+         * <P> Type: INTEGER (long) </P>
+         */
+        public static final String WIDGET_TYPE = "widget_type";
+
+        /**
+         * Note's background color's id
+         * <P> Type: INTEGER (long) </P>
+         */
+        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
+         * <P> Type: INTEGER </P>
+         */
+        public static final String HAS_ATTACHMENT = "has_attachment";
+
+        /**
+         * Folder's count of notes
+         * <P> Type: INTEGER (long) </P>
+         */
+        public static final String NOTES_COUNT = "notes_count";
+
+        /**
+         * The file type: folder or note
+         * <P> Type: INTEGER </P>
+         */
+        public static final String TYPE = "type";
+
+        /**
+         * The last sync id
+         * <P> Type: INTEGER (long) </P>
+         */
+        public static final String SYNC_ID = "sync_id";
+
+        /**
+         * Sign to indicate local modified or not
+         * <P> Type: INTEGER </P>
+         */
+        public static final String LOCAL_MODIFIED = "local_modified";
+
+        /**
+         * Original parent id before moving into temporary folder
+         * <P> Type : INTEGER </P>
+         */
+        public static final String ORIGIN_PARENT_ID = "origin_parent_id";
+
+        /**
+         * The gtask id
+         * <P> Type : TEXT </P>
+         */
+        public static final String GTASK_ID = "gtask_id";
+
+        /**
+         * The version code
+         * <P> Type : INTEGER (long) </P>
+         */
+        public static final String VERSION = "version";
+    }
+
+    public interface DataColumns {
+        /**
+         * The unique ID for a row
+         * <P> Type: INTEGER (long) </P>
+         */
+        public static final String ID = "_id";
+
+        /**
+         * The MIME type of the item represented by this row.
+         * <P> Type: Text </P>
+         */
+        public static final String MIME_TYPE = "mime_type";
+
+        /**
+         * The reference id to note that this data belongs to
+         * <P> Type: INTEGER (long) </P>
+         */
+        public static final String NOTE_ID = "note_id";
+
+        /**
+         * Created data for note or folder
+         * <P> Type: INTEGER (long) </P>
+         */
+        public static final String CREATED_DATE = "created_date";
+
+        /**
+         * Latest modified date
+         * <P> Type: INTEGER (long) </P>
+         */
+        public static final String MODIFIED_DATE = "modified_date";
+
+        /**
+         * Data's content
+         * <P> Type: TEXT </P>
+         */
+        public static final String CONTENT = "content";
+
+
+        /**
+         * Generic data column, the meaning is {@link #MIMETYPE} specific, used for
+         * integer data type
+         * <P> Type: INTEGER </P>
+         */
+        public static final String DATA1 = "data1";
+
+        /**
+         * Generic data column, the meaning is {@link #MIMETYPE} specific, used for
+         * integer data type
+         * <P> Type: INTEGER </P>
+         */
+        public static final String DATA2 = "data2";
+
+        /**
+         * Generic data column, the meaning is {@link #MIMETYPE} specific, used for
+         * TEXT data type
+         * <P> Type: TEXT </P>
+         */
+        public static final String DATA3 = "data3";
+
+        /**
+         * Generic data column, the meaning is {@link #MIMETYPE} specific, used for
+         * TEXT data type
+         * <P> Type: TEXT </P>
+         */
+        public static final String DATA4 = "data4";
+
+        /**
+         * Generic data column, the meaning is {@link #MIMETYPE} specific, used for
+         * TEXT data type
+         * <P> Type: TEXT </P>
+         */
+        public static final String DATA5 = "data5";
+    }
+
+    public static final class TextNote implements DataColumns {
+        /**
+         * Mode to indicate the text in check list mode or not
+         * <P> Type: Integer 1:check list mode 0: normal mode </P>
+         */
+        public static final String MODE = DATA1;
+
+        public static final int MODE_CHECK_LIST = 1;
+
+        public static final String CONTENT_TYPE = "vnd.android.cursor.dir/text_note";
+
+        public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/text_note";
+
+        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/text_note");
+    }
+
+    public static final class CallNote implements DataColumns {
+        /**
+         * Call date for this record
+         * <P> Type: INTEGER (long) </P>
+         */
+        public static final String CALL_DATE = DATA1;
+
+        /**
+         * Phone number for this record
+         * <P> Type: TEXT </P>
+         */
+        public static final String PHONE_NUMBER = DATA3;
+
+        public static final String CONTENT_TYPE = "vnd.android.cursor.dir/call_note";
+
+        public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/call_note";
+
+        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/call_note");
+    }
+}

other/07_210440246蔡安南_代码标注/data/NotesDatabaseHelper.java

@@ -0,0 +1,347 @@
+
+package net.micode.notes.data;
+
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
+import android.util.Log;
+
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.DataConstants;
+import net.micode.notes.data.Notes.NoteColumns;
+
+
+public class NotesDatabaseHelper extends SQLiteOpenHelper {
+    private static final String DB_NAME = "note.db";
+
+    private static final int DB_VERSION = 4;
+
+    public interface TABLE {
+        public static final String NOTE = "note";
+
+        public static final String DATA = "data";
+    }
+
+    private static final String TAG = "NotesDatabaseHelper";
+
+    private static NotesDatabaseHelper mInstance;
+
+    private static final String CREATE_NOTE_TABLE_SQL =
+        "CREATE TABLE " + TABLE.NOTE + "(" +
+            NoteColumns.ID + " INTEGER PRIMARY KEY," +
+            NoteColumns.PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +
+            NoteColumns.ALERTED_DATE + " INTEGER NOT NULL DEFAULT 0," +
+            NoteColumns.BG_COLOR_ID + " INTEGER NOT NULL DEFAULT 0," +
+            NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
+            NoteColumns.HAS_ATTACHMENT + " INTEGER NOT NULL DEFAULT 0," +
+            NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
+            NoteColumns.NOTES_COUNT + " INTEGER NOT NULL DEFAULT 0," +
+            NoteColumns.SNIPPET + " TEXT NOT NULL DEFAULT ''," +
+            NoteColumns.TYPE + " INTEGER NOT NULL DEFAULT 0," +
+            NoteColumns.WIDGET_ID + " INTEGER NOT NULL DEFAULT 0," +
+            NoteColumns.WIDGET_TYPE + " INTEGER NOT NULL DEFAULT -1," +
+            NoteColumns.SYNC_ID + " INTEGER NOT NULL DEFAULT 0," +
+            NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," +
+            NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +
+            NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," +
+            NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" +
+        ")";
+
+    private static final String CREATE_DATA_TABLE_SQL =
+        "CREATE TABLE " + TABLE.DATA + "(" +
+            DataColumns.ID + " INTEGER PRIMARY KEY," +
+            DataColumns.MIME_TYPE + " TEXT NOT NULL," +
+            DataColumns.NOTE_ID + " INTEGER NOT NULL DEFAULT 0," +
+            NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
+            NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
+            DataColumns.CONTENT + " TEXT NOT NULL DEFAULT ''," +
+            DataColumns.DATA1 + " INTEGER," +
+            DataColumns.DATA2 + " INTEGER," +
+            DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," +
+            DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," +
+            DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" +
+        ")";
+
+    private static final String CREATE_DATA_NOTE_ID_INDEX_SQL =
+        "CREATE INDEX IF NOT EXISTS note_id_index ON " +
+        TABLE.DATA + "(" + DataColumns.NOTE_ID + ");";
+
+    /**
+     * 把便签挪动进入数据库，便签数加一
+     */
+    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";
+
+    /**
+     * 把便签挪动进出数据库，便签数减一
+     */
+    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";
+
+    /**
+     * 把便签挪动进入文件夹，便签数加一
+     */
+    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";
+
+    /**
+     * 把便签挪动进出文件夹，便签数减一
+     */
+    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";
+
+    /**
+     * 更新便签数据类型1 {@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";
+
+    /**
+     * 更新便签数据类型2 {@link DataConstants#NOTE}
+     */
+    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";
+
+    /**
+     * 更新便签数据类型3 {@link DataConstants#NOTE}
+     */
+    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);
+    }
+
+    public void createNoteTable(SQLiteDatabase db) {
+        db.execSQL(CREATE_NOTE_TABLE_SQL);
+        reCreateNoteTableTriggers(db);
+        createSystemFolder(db);
+        Log.d(TAG, "note table has been created");
+    }
+
+    private void reCreateNoteTableTriggers(SQLiteDatabase db) {
+        db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_update");
+        db.execSQL("DROP TRIGGER IF EXISTS decrease_folder_count_on_update");
+        db.execSQL("DROP TRIGGER IF EXISTS decrease_folder_count_on_delete");
+        db.execSQL("DROP TRIGGER IF EXISTS delete_data_on_delete");
+        db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_insert");
+        db.execSQL("DROP TRIGGER IF EXISTS folder_delete_notes_on_delete");
+        db.execSQL("DROP TRIGGER IF EXISTS folder_move_notes_on_trash");
+
+        db.execSQL(NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER);
+        db.execSQL(NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER);
+        db.execSQL(NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER);
+        db.execSQL(NOTE_DELETE_DATA_ON_DELETE_TRIGGER);
+        db.execSQL(NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER);
+        db.execSQL(FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER);
+        db.execSQL(FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER);
+    }
+
+    private void createSystemFolder(SQLiteDatabase db) {
+        ContentValues values = new ContentValues();
+
+        /**
+         * call record foler for call notes
+         */
+        values.put(NoteColumns.ID, Notes.ID_CALL_RECORD_FOLDER);
+        values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
+        db.insert(TABLE.NOTE, null, values);
+
+        /**
+         * root folder which is default folder
+         */
+        values.clear();
+        values.put(NoteColumns.ID, Notes.ID_ROOT_FOLDER);
+        values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
+        db.insert(TABLE.NOTE, null, values);
+
+        /**
+         * temporary folder which is used for moving note
+         */
+        values.clear();
+        values.put(NoteColumns.ID, Notes.ID_TEMPARAY_FOLDER);
+        values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
+        db.insert(TABLE.NOTE, null, values);
+
+        /**
+         * create trash folder
+         */
+        values.clear();
+        values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER);
+        values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
+        db.insert(TABLE.NOTE, null, values);
+    }
+
+    public void createDataTable(SQLiteDatabase db) {
+        db.execSQL(CREATE_DATA_TABLE_SQL);
+        reCreateDataTableTriggers(db);
+        db.execSQL(CREATE_DATA_NOTE_ID_INDEX_SQL);
+        Log.d(TAG, "data table has been created");
+    }
+
+    private void reCreateDataTableTriggers(SQLiteDatabase db) {
+        db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_insert");
+        db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_update");
+        db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_delete");
+
+        db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER);
+        db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER);
+        db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER);
+    }
+
+    static synchronized NotesDatabaseHelper getInstance(Context context) {
+        if (mInstance == null) {
+            mInstance = new NotesDatabaseHelper(context);
+        }
+        return mInstance;
+    }
+
+    @Override
+    public void onCreate(SQLiteDatabase db) {
+        createNoteTable(db);
+        createDataTable(db);
+    }
+
+    @Override
+    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+        boolean reCreateTriggers = false;
+        boolean skipV2 = false;
+
+        if (oldVersion == 1) {
+            upgradeToV2(db);
+            skipV2 = true; // this upgrade including the upgrade from v2 to v3
+            oldVersion++;
+        }
+
+        if (oldVersion == 2 && !skipV2) {
+            upgradeToV3(db);
+            reCreateTriggers = true;
+            oldVersion++;
+        }
+
+        if (oldVersion == 3) {
+            upgradeToV4(db);
+            oldVersion++;
+        }
+
+        if (reCreateTriggers) {
+            reCreateNoteTableTriggers(db);
+            reCreateDataTableTriggers(db);
+        }
+
+        if (oldVersion != newVersion) {
+            throw new IllegalStateException("Upgrade notes database to version " + newVersion
+                    + "fails");
+        }
+    }
+
+    private void upgradeToV2(SQLiteDatabase db) {
+        db.execSQL("DROP TABLE IF EXISTS " + TABLE.NOTE);
+        db.execSQL("DROP TABLE IF EXISTS " + TABLE.DATA);
+        createNoteTable(db);
+        createDataTable(db);
+    }
+
+    private void upgradeToV3(SQLiteDatabase db) {
+        // drop unused triggers
+        db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_insert");
+        db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_delete");
+        db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_update");
+        // add a column for gtask id
+        db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.GTASK_ID
+                + " TEXT NOT NULL DEFAULT ''");
+        // add a trash system folder
+        ContentValues values = new ContentValues();
+        values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER);
+        values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
+        db.insert(TABLE.NOTE, null, values);
+    }
+
+    private void upgradeToV4(SQLiteDatabase db) {
+        db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.VERSION
+                + " INTEGER NOT NULL DEFAULT 0");
+    }
+}

other/07_210440246蔡安南_代码标注/data/NotesProvider.java

@@ -0,0 +1,289 @@
+package net.micode.notes.data;
+
+
+import android.app.SearchManager;
+import android.content.ContentProvider;
+import android.content.ContentUris;
+import android.content.ContentValues;
+import android.content.Intent;
+import android.content.UriMatcher;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
+import android.net.Uri;
+import android.text.TextUtils;
+import android.util.Log;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.data.NotesDatabaseHelper.TABLE;
+
+
+public class NotesProvider extends ContentProvider {
+    private static final UriMatcher mMatcher;
+
+    private NotesDatabaseHelper mHelper;
+
+    private static final String TAG = "NotesProvider";
+
+    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;
+
+    static {
+        mMatcher = new UriMatcher(UriMatcher.NO_MATCH);
+        mMatcher.addURI(Notes.AUTHORITY, "note", URI_NOTE);
+        mMatcher.addURI(Notes.AUTHORITY, "note/#", URI_NOTE_ITEM);
+        mMatcher.addURI(Notes.AUTHORITY, "data", URI_DATA);
+        mMatcher.addURI(Notes.AUTHORITY, "data/#", URI_DATA_ITEM);
+        mMatcher.addURI(Notes.AUTHORITY, "search", URI_SEARCH);
+        mMatcher.addURI(Notes.AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY, URI_SEARCH_SUGGEST);
+        mMatcher.addURI(Notes.AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY + "/*", URI_SEARCH_SUGGEST);
+    }
+
+    /**
+     * x'0A' represents the '\n' character in sqlite. For title and content in the search result,
+     * we will trim '\n' and white space in order to show more information.
+     */
+    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;
+
+    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;
+
+    @Override
+    public boolean onCreate() {
+        mHelper = NotesDatabaseHelper.getInstance(getContext());
+        return true;
+    }
+
+    @Override
+    public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
+            String sortOrder) {
+        Cursor c = null;
+        SQLiteDatabase db = mHelper.getReadableDatabase();
+        String id = null;
+        switch (mMatcher.match(uri)) {
+            case URI_NOTE:
+                c = db.query(TABLE.NOTE, projection, selection, selectionArgs, null, null,
+                        sortOrder);
+                break;
+            case URI_NOTE_ITEM:
+                id = uri.getPathSegments().get(1);
+                c = db.query(TABLE.NOTE, projection, NoteColumns.ID + "=" + id
+                        + parseSelection(selection), selectionArgs, null, null, sortOrder);
+                break;
+            case URI_DATA:
+                c = db.query(TABLE.DATA, projection, selection, selectionArgs, null, null,
+                        sortOrder);
+                break;
+            case URI_DATA_ITEM:
+                id = uri.getPathSegments().get(1);
+                c = db.query(TABLE.DATA, projection, DataColumns.ID + "=" + id
+                        + parseSelection(selection), selectionArgs, null, null, sortOrder);
+                break;
+            case URI_SEARCH:
+            case URI_SEARCH_SUGGEST:
+                if (sortOrder != null || projection != null) {
+                    throw new IllegalArgumentException(
+                            "do not specify sortOrder, selection, selectionArgs, or projection" + "with this query");
+                }
+
+                String searchString = null;
+                if (mMatcher.match(uri) == URI_SEARCH_SUGGEST) {
+                    if (uri.getPathSegments().size() > 1) {
+                        searchString = uri.getPathSegments().get(1);
+                    }
+                } else {
+                    searchString = uri.getQueryParameter("pattern");
+                }
+
+                if (TextUtils.isEmpty(searchString)) {
+                    return null;
+                }
+
+                try {
+                    searchString = String.format("%%%s%%", searchString);
+                    c = db.rawQuery(NOTES_SNIPPET_SEARCH_QUERY,
+                            new String[] { searchString });
+                } catch (IllegalStateException ex) {
+                    Log.e(TAG, "got exception: " + ex.toString());
+                }
+                break;
+            default:
+                throw new IllegalArgumentException("Unknown URI " + uri);
+        }
+        if (c != null) {
+            c.setNotificationUri(getContext().getContentResolver(), uri);
+        }
+        return c;
+    }
+
+    @Override
+    public Uri insert(Uri uri, ContentValues values) {
+        SQLiteDatabase db = mHelper.getWritableDatabase();
+        long dataId = 0, noteId = 0, insertedId = 0;
+        switch (mMatcher.match(uri)) {
+            case URI_NOTE:
+                insertedId = noteId = db.insert(TABLE.NOTE, null, values);
+                break;
+            case URI_DATA:
+                if (values.containsKey(DataColumns.NOTE_ID)) {
+                    noteId = values.getAsLong(DataColumns.NOTE_ID);
+                } else {
+                    Log.d(TAG, "Wrong data format without note id:" + values.toString());
+                }
+                insertedId = dataId = db.insert(TABLE.DATA, null, values);
+                break;
+            default:
+                throw new IllegalArgumentException("Unknown URI " + uri);
+        }
+        // Notify the note uri
+        if (noteId > 0) {
+            getContext().getContentResolver().notifyChange(
+                    ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null);
+        }
+
+        // Notify the data uri
+        if (dataId > 0) {
+            getContext().getContentResolver().notifyChange(
+                    ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), null);
+        }
+
+        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());
+    }
+
+    @Override
+    public String getType(Uri uri) {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+}

other/07_210440246蔡安南_代码标注/model/Note.java

@@ -0,0 +1,281 @@
+package net.micode.notes.model;
+import android.content.ContentProviderOperation;
+import android.content.ContentProviderResult;
+import android.content.ContentUris;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.OperationApplicationException;
+import android.net.Uri;
+import android.os.RemoteException;
+import android.util.Log;
+
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.CallNote;
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.data.Notes.TextNote;
+
+import java.util.ArrayList;
+
+
+/*
+这是一个Java类`Note`，它包含一个静态方法`getNewNoteId`。
+
+`getNewNoteId`方法接受两个参数：一个`Context`对象和一个`long`类型的`folderId`。该方法的作用是为添加一个新笔记到数据库中创建一个新的笔记ID，并返回该ID。
+
+具体来说，该方法创建一个`ContentValues`对象，用于指定新笔记的一些属性，例如创建时间、修改时间、类型、本地修改标志和父文件夹ID等。然后，该方法使用`ContentResolver.insert`方法将该笔记插入到数据库中，并返回一个`Uri`对象。
+
+最后，该方法从`Uri`对象中提取笔记ID，并将其作为`long`类型返回。如果提取ID失败，则返回0。如果提取的ID为-1，则抛出一个`IllegalStateException`异常。
+
+需要注意的是，该类中使用了一些未定义的变量和方法，例如`NoteColumns.CREATED_DATE`、`NoteColumns.MODIFIED_DATE`、`Notes.TYPE_NOTE`、`NoteColumns.LOCAL_MODIFIED`和`Notes.CONTENT_NOTE_URI`等。因此，无法确定该类的完整实现和调用方式。
+*/
+
+public class Note {
+    private ContentValues mNoteDiffValues;
+    private NoteData mNoteData;
+    private static final String TAG = "Note";
+    /**
+     * Create a new note id for adding a new note to databases
+     */
+    public static synchronized long getNewNoteId(Context context, long folderId) {
+        // Create a new note in the database
+        ContentValues values = new ContentValues();
+        long createdTime = System.currentTimeMillis();
+        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);
+        Uri uri = context.getContentResolver().insert(Notes.CONTENT_NOTE_URI, values);
+
+        long noteId = 0;
+        try {
+            noteId = Long.valueOf(uri.getPathSegments().get(1));
+        } catch (NumberFormatException e) {
+            Log.e(TAG, "Get note id error :" + e.toString());
+            noteId = 0;
+        }
+        if (noteId == -1) {
+            throw new IllegalStateException("Wrong note id:" + noteId);
+        }
+        return noteId;
+    }
+
+    public Note() {
+        mNoteDiffValues = new ContentValues();
+        mNoteData = new NoteData();
+    }
+
+    public void setNoteValue(String key, String value) {
+        mNoteDiffValues.put(key, value);
+        mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
+        mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
+    }
+
+    public void setTextData(String key, String value) {
+        mNoteData.setTextData(key, value);
+    }
+
+    public void setTextDataId(long id) {
+        mNoteData.setTextDataId(id);
+    }
+
+    public long getTextDataId() {
+        return mNoteData.mTextDataId;
+    }
+
+    public void setCallDataId(long id) {
+        mNoteData.setCallDataId(id);
+    }
+
+    public void setCallData(String key, String value) {
+        mNoteData.setCallData(key, value);
+    }
+
+    public boolean isLocalModified() {
+        return mNoteDiffValues.size() > 0 || mNoteData.isLocalModified();
+    }
+
+    public boolean syncNote(Context context, long noteId) {
+        if (noteId <= 0) {
+            throw new IllegalArgumentException("Wrong note id:" + noteId);
+        }
+
+        if (!isLocalModified()) {
+            return true;
+        }
+
+        /**
+         * In theory, once data changed, the note should be updated on {@link NoteColumns#LOCAL_MODIFIED} and
+         * {@link NoteColumns#MODIFIED_DATE}. For data safety, though update note fails, we also update the
+         * note data info
+         */
+        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
+        }
+        mNoteDiffValues.clear();
+
+        if (mNoteData.isLocalModified()
+                && (mNoteData.pushIntoContentResolver(context, noteId) == null)) {
+            return false;
+        }
+
+        return true;
+    }
+
+    /*
+    这是一个Java类`Note`中的一个内部类`NoteData`，它包含一些成员变量和方法，用于处理笔记的文本数据和通话数据。
+
+具体来说，`NoteData`类包含以下成员变量：
+
+- `mTextDataId`：文本数据的ID。
+- `mTextDataValues`：文本数据的`ContentValues`对象。
+- `mCallDataId`：通话数据的ID。
+- `mCallDataValues`：通话数据的`ContentValues`对象。
+
+`NoteData`类包含以下方法：
+
+- `isLocalModified`：检查笔记的文本数据和通话数据是否已被修改。
+- `setTextDataId`：设置文本数据的ID。
+- `setCallDataId`：设置通话数据的ID。
+- `setCallData`：设置通话数据的键值对。
+- `setTextData`：设置文本数据的键值对。
+- `pushIntoContentResolver`：将笔记的文本数据和通话数据插入到数据库中，并返回插入操作的结果。
+
+具体来说，`isLocalModified`方法检查文本数据和通话数据的`ContentValues`对象是否包含任何键值对。如果是，则说明数据已被修改，返回`true`，否则返回`false`。
+
+`setTextDataId`和`setCallDataId`方法分别设置文本数据和通话数据的ID。如果指定的ID小于等于0，则抛出`IllegalArgumentException`异常。
+
+`setCallData`和`setTextData`方法分别设置通话数据和文本数据的键值对。这些键值对将被添加到对应的`ContentValues`对象中，并将笔记的`LOCAL_MODIFIED`和`MODIFIED_DATE`属性设置为1和当前时间戳。
+
+`pushIntoContentResolver`方法将笔记的文本数据和通话数据插入到数据库中，并返回插入操作的结果。该方法首先检查笔记的ID是否大于0，如果不是，则抛出`IllegalArgumentException`异常。
+
+然后，该方法创建一个`ArrayList<ContentProviderOperation>`对象，用于存储插入或更新操作。如果文本数据或通话数据的`ContentValues`对象包含任何键值对，则该方法将其添加到对应的插入或更新操作中。
+
+最后，该方法使用`ContentResolver.applyBatch`方法将所有操作应用到数据库中，并返回插入操作的结果。如果操作失败，则返回`null`。
+*/
+    
+    private class NoteData {
+        private long mTextDataId;
+
+        private ContentValues mTextDataValues;
+
+        private long mCallDataId;
+
+        private ContentValues mCallDataValues;
+
+        private static final String TAG = "NoteData";
+
+        public NoteData() {
+            mTextDataValues = new ContentValues();
+            mCallDataValues = new ContentValues();
+            mTextDataId = 0;
+            mCallDataId = 0;
+        }
+
+        boolean isLocalModified() {
+            return mTextDataValues.size() > 0 || mCallDataValues.size() > 0;
+        }
+
+        void setTextDataId(long id) {
+            if(id <= 0) {
+                throw new IllegalArgumentException("Text data id should larger than 0");
+            }
+            mTextDataId = id;
+        }
+
+        void setCallDataId(long id) {
+            if (id <= 0) {
+                throw new IllegalArgumentException("Call data id should larger than 0");
+            }
+            mCallDataId = id;
+        }
+
+        void setCallData(String key, String value) {
+            mCallDataValues.put(key, value);
+            mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
+            mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
+        }
+
+        void setTextData(String key, String value) {
+            mTextDataValues.put(key, value);
+            mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
+            mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
+        }
+
+        Uri pushIntoContentResolver(Context context, long noteId) {
+            /**
+             * Check for safety
+             */
+            if (noteId <= 0) {
+                throw new IllegalArgumentException("Wrong note id:" + noteId);
+            }
+
+            ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
+            ContentProviderOperation.Builder builder = null;
+
+            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);
+                    try {
+                        setTextDataId(Long.valueOf(uri.getPathSegments().get(1)));
+                    } catch (NumberFormatException e) {
+                        Log.e(TAG, "Insert new text data fail with noteId" + noteId);
+                        mTextDataValues.clear();
+                        return null;
+                    }
+                } else {
+                    builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId(
+                            Notes.CONTENT_DATA_URI, mTextDataId));
+                    builder.withValues(mTextDataValues);
+                    operationList.add(builder.build());
+                }
+                mTextDataValues.clear();
+            }
+
+            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);
+                    try {
+                        setCallDataId(Long.valueOf(uri.getPathSegments().get(1)));
+                    } catch (NumberFormatException e) {
+                        Log.e(TAG, "Insert new call data fail with noteId" + noteId);
+                        mCallDataValues.clear();
+                        return null;
+                    }
+                } else {
+                    builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId(
+                            Notes.CONTENT_DATA_URI, mCallDataId));
+                    builder.withValues(mCallDataValues);
+                    operationList.add(builder.build());
+                }
+                mCallDataValues.clear();
+            }
+
+            if (operationList.size() > 0) {
+                try {
+                    ContentProviderResult[] results = context.getContentResolver().applyBatch(
+                            Notes.AUTHORITY, operationList);
+                    return (results == null || results.length == 0 || results[0] == null) ? null
+                            : ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId);
+                } catch (RemoteException e) {
+                    Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+                    return null;
+                } catch (OperationApplicationException e) {
+                    Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+                    return null;
+                }
+            }
+            return null;
+        }
+    }
+}

other/07_210440246蔡安南_代码标注/model/WorkingNote.java

@@ -0,0 +1,381 @@
+
+package net.micode.notes.model;
+
+import android.appwidget.AppWidgetManager;
+import android.content.ContentUris;
+import android.content.Context;
+import android.database.Cursor;
+import android.text.TextUtils;
+import android.util.Log;
+
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.CallNote;
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.DataConstants;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.data.Notes.TextNote;
+import net.micode.notes.tool.ResourceParser.NoteBgResources;
+
+
+public class WorkingNote {
+    // Note for the working note
+    private Note mNote;
+    // Note Id
+    private long mNoteId;
+    // Note content
+    private String mContent;
+    // Note mode
+    private int mMode;
+
+    private long mAlertDate;
+
+    private long mModifiedDate;
+
+    private int mBgColorId;
+
+    private int mWidgetId;
+
+    private int mWidgetType;
+
+    private long mFolderId;
+
+    private Context mContext;
+
+    private static final String TAG = "WorkingNote";
+
+    private boolean mIsDeleted;
+
+    private NoteSettingChangedListener mNoteSettingStatusListener;
+
+    public static final String[] DATA_PROJECTION = new String[] {
+            DataColumns.ID,
+            DataColumns.CONTENT,
+            DataColumns.MIME_TYPE,
+            DataColumns.DATA1,
+            DataColumns.DATA2,
+            DataColumns.DATA3,
+            DataColumns.DATA4,
+    };
+
+    public static final String[] NOTE_PROJECTION = new String[] {
+            NoteColumns.PARENT_ID,
+            NoteColumns.ALERTED_DATE,
+            NoteColumns.BG_COLOR_ID,
+            NoteColumns.WIDGET_ID,
+            NoteColumns.WIDGET_TYPE,
+            NoteColumns.MODIFIED_DATE
+    };
+
+    private static final int DATA_ID_COLUMN = 0;
+
+    private static final int DATA_CONTENT_COLUMN = 1;
+
+    private static final int DATA_MIME_TYPE_COLUMN = 2;
+
+    private static final int DATA_MODE_COLUMN = 3;
+
+    private static final int NOTE_PARENT_ID_COLUMN = 0;
+
+    private static final int NOTE_ALERTED_DATE_COLUMN = 1;
+
+    private static final int NOTE_BG_COLOR_ID_COLUMN = 2;
+
+    private static final int NOTE_WIDGET_ID_COLUMN = 3;
+
+    private static final int NOTE_WIDGET_TYPE_COLUMN = 4;
+
+    private static final int NOTE_MODIFIED_DATE_COLUMN = 5;
+/*
+这是一个Java类`Note`中的一个方法`loadNoteData`，它用于从数据库中加载笔记的数据。
+
+具体来说，`loadNoteData`方法使用`ContentResolver.query`方法查询笔记的数据，并使用`DataColumns.NOTE_ID`作为查询条件。如果查询结果不为空，则该方法遍历所有结果行，并根据数据的MIME类型分别设置笔记的文本数据或通话数据。
+
+如果数据的MIME类型为`DataConstants.NOTE`，则该方法获取数据的内容、模式和ID，并将其分别设置为笔记的文本数据、模式和文本数据的ID。
+
+如果数据的MIME类型为`DataConstants.CALL_NOTE`，则该方法获取数据的ID，并将其设置为笔记的通话数据的ID。
+
+如果数据的MIME类型不是笔记或通话数据，则该方法记录错误日志。
+
+如果查询结果为空，则该方法抛出`IllegalArgumentException`异常。
+
+需要注意的是，该类中使用了一些未定义的变量和方法，例如`Notes.CONTENT_DATA_URI`、`DataColumns.NOTE_ID`、`DataConstants.NOTE`、`DataConstants.CALL_NOTE`、`DATA_PROJECTION`、`DATA_MIME_TYPE_COLUMN`、`DATA_CONTENT_COLUMN`、`DATA_MODE_COLUMN`和`DATA_ID_COLUMN`等。因此，无法确定该类的完整实现和调用方式。
+*/
+    // New note construct
+    private WorkingNote(Context context, long folderId) {
+        mContext = context;
+        mAlertDate = 0;
+        mModifiedDate = System.currentTimeMillis();
+        mFolderId = folderId;
+        mNote = new Note();
+        mNoteId = 0;
+        mIsDeleted = false;
+        mMode = 0;
+        mWidgetType = Notes.TYPE_WIDGET_INVALIDE;
+    }
+
+    // Existing note construct
+    private WorkingNote(Context context, long noteId, long folderId) {
+        mContext = context;
+        mNoteId = noteId;
+        mFolderId = folderId;
+        mIsDeleted = false;
+        mNote = new Note();
+        loadNote();
+    }
+
+    private void loadNote() {
+        Cursor cursor = mContext.getContentResolver().query(
+                ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mNoteId), NOTE_PROJECTION, null,
+                null, null);
+
+        if (cursor != null) {
+            if (cursor.moveToFirst()) {
+                mFolderId = cursor.getLong(NOTE_PARENT_ID_COLUMN);
+                mBgColorId = cursor.getInt(NOTE_BG_COLOR_ID_COLUMN);
+                mWidgetId = cursor.getInt(NOTE_WIDGET_ID_COLUMN);
+                mWidgetType = cursor.getInt(NOTE_WIDGET_TYPE_COLUMN);
+                mAlertDate = cursor.getLong(NOTE_ALERTED_DATE_COLUMN);
+                mModifiedDate = cursor.getLong(NOTE_MODIFIED_DATE_COLUMN);
+            }
+            cursor.close();
+        } else {
+            Log.e(TAG, "No note with id:" + mNoteId);
+            throw new IllegalArgumentException("Unable to find note with id " + mNoteId);
+        }
+        loadNoteData();
+    }
+
+/*
+这是一个Java类`Note`中的一个方法`loadNoteData`，它用于从数据库中加载笔记的数据。
+
+具体来说，`loadNoteData`方法使用`ContentResolver.query`方法查询笔记的数据，并使用`DataColumns.NOTE_ID`作为查询条件。如果查询结果不为空，则该方法遍历所有结果行，并根据数据的MIME类型分别设置笔记的文本数据或通话数据。
+
+如果数据的MIME类型为`DataConstants.NOTE`，则该方法获取数据的内容、模式和ID，并将其分别设置为笔记的文本数据、模式和文本数据的ID。
+
+如果数据的MIME类型为`DataConstants.CALL_NOTE`，则该方法获取数据的ID，并将其设置为笔记的通话数据的ID。
+
+如果数据的MIME类型不是笔记或通话数据，则该方法记录错误日志。
+
+如果查询结果为空，则该方法抛出`IllegalArgumentException`异常。
+
+*/
+    private void loadNoteData() {
+        Cursor cursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, DATA_PROJECTION,
+                DataColumns.NOTE_ID + "=?", new String[] {
+                    String.valueOf(mNoteId)
+                }, null);
+
+        if (cursor != null) {
+            if (cursor.moveToFirst()) {
+                do {
+                    String type = cursor.getString(DATA_MIME_TYPE_COLUMN);
+                    if (DataConstants.NOTE.equals(type)) {
+                        mContent = cursor.getString(DATA_CONTENT_COLUMN);
+                        mMode = cursor.getInt(DATA_MODE_COLUMN);
+                        mNote.setTextDataId(cursor.getLong(DATA_ID_COLUMN));
+                    } else if (DataConstants.CALL_NOTE.equals(type)) {
+                        mNote.setCallDataId(cursor.getLong(DATA_ID_COLUMN));
+                    } else {
+                        Log.d(TAG, "Wrong note type with type:" + type);
+                    }
+                } while (cursor.moveToNext());
+            }
+            cursor.close();
+        } else {
+            Log.e(TAG, "No data with id:" + mNoteId);
+            throw new IllegalArgumentException("Unable to find note's data with id " + mNoteId);
+        }
+    }
+
+    public static WorkingNote createEmptyNote(Context context, long folderId, int widgetId,
+            int widgetType, int defaultBgColorId) {
+        WorkingNote note = new WorkingNote(context, folderId);
+        note.setBgColorId(defaultBgColorId);
+        note.setWidgetId(widgetId);
+        note.setWidgetType(widgetType);
+        return note;
+    }
+
+    public static WorkingNote load(Context context, long id) {
+        return new WorkingNote(context, id, 0);
+    }
+
+    public synchronized boolean saveNote() {
+        if (isWorthSaving()) {
+            if (!existInDatabase()) {
+                if ((mNoteId = Note.getNewNoteId(mContext, mFolderId)) == 0) {
+                    Log.e(TAG, "Create new note fail with id:" + mNoteId);
+                    return false;
+                }
+            }
+
+            mNote.syncNote(mContext, mNoteId);
+
+            /**
+             * Update widget content if there exist any widget of this note
+             */
+            if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID
+                    && mWidgetType != Notes.TYPE_WIDGET_INVALIDE
+                    && mNoteSettingStatusListener != null) {
+                mNoteSettingStatusListener.onWidgetChanged();
+            }
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    public boolean existInDatabase() {
+        return mNoteId > 0;
+    }
+
+    private boolean isWorthSaving() {
+        if (mIsDeleted || (!existInDatabase() && TextUtils.isEmpty(mContent))
+                || (existInDatabase() && !mNote.isLocalModified())) {
+            return false;
+        } else {
+            return true;
+        }
+    }
+
+    public void setOnSettingStatusChangedListener(NoteSettingChangedListener l) {
+        mNoteSettingStatusListener = l;
+    }
+
+    public void setAlertDate(long date, boolean set) {
+        if (date != mAlertDate) {
+            mAlertDate = date;
+            mNote.setNoteValue(NoteColumns.ALERTED_DATE, String.valueOf(mAlertDate));
+        }
+        if (mNoteSettingStatusListener != null) {
+            mNoteSettingStatusListener.onClockAlertChanged(date, set);
+        }
+    }
+
+    public void markDeleted(boolean mark) {
+        mIsDeleted = mark;
+        if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID
+                && mWidgetType != Notes.TYPE_WIDGET_INVALIDE && mNoteSettingStatusListener != null) {
+                mNoteSettingStatusListener.onWidgetChanged();
+        }
+    }
+
+    public void setBgColorId(int id) {
+        if (id != mBgColorId) {
+            mBgColorId = id;
+            if (mNoteSettingStatusListener != null) {
+                mNoteSettingStatusListener.onBackgroundColorChanged();
+            }
+            mNote.setNoteValue(NoteColumns.BG_COLOR_ID, String.valueOf(id));
+        }
+    }
+
+    public void setCheckListMode(int mode) {
+        if (mMode != mode) {
+            if (mNoteSettingStatusListener != null) {
+                mNoteSettingStatusListener.onCheckListModeChanged(mMode, mode);
+            }
+            mMode = mode;
+            mNote.setTextData(TextNote.MODE, String.valueOf(mMode));
+        }
+    }
+
+    public void setWidgetType(int type) {
+        if (type != mWidgetType) {
+            mWidgetType = type;
+            mNote.setNoteValue(NoteColumns.WIDGET_TYPE, String.valueOf(mWidgetType));
+        }
+    }
+
+    public void setWidgetId(int id) {
+        if (id != mWidgetId) {
+            mWidgetId = id;
+            mNote.setNoteValue(NoteColumns.WIDGET_ID, String.valueOf(mWidgetId));
+        }
+    }
+
+    public void setWorkingText(String text) {
+        if (!TextUtils.equals(mContent, text)) {
+            mContent = text;
+            mNote.setTextData(DataColumns.CONTENT, mContent);
+        }
+    }
+
+    public void convertToCallNote(String phoneNumber, long callDate) {
+        mNote.setCallData(CallNote.CALL_DATE, String.valueOf(callDate));
+        mNote.setCallData(CallNote.PHONE_NUMBER, phoneNumber);
+        mNote.setNoteValue(NoteColumns.PARENT_ID, String.valueOf(Notes.ID_CALL_RECORD_FOLDER));
+    }
+
+    public boolean hasClockAlert() {
+        return (mAlertDate > 0 ? true : false);
+    }
+
+    public String getContent() {
+        return mContent;
+    }
+
+    public long getAlertDate() {
+        return mAlertDate;
+    }
+
+    public long getModifiedDate() {
+        return mModifiedDate;
+    }
+
+    public int getBgColorResId() {
+        return NoteBgResources.getNoteBgResource(mBgColorId);
+    }
+
+    public int getBgColorId() {
+        return mBgColorId;
+    }
+
+    public int getTitleBgResId() {
+        return NoteBgResources.getNoteTitleBgResource(mBgColorId);
+    }
+
+    public int getCheckListMode() {
+        return mMode;
+    }
+
+    public long getNoteId() {
+        return mNoteId;
+    }
+
+    public long getFolderId() {
+        return mFolderId;
+    }
+
+    public int getWidgetId() {
+        return mWidgetId;
+    }
+
+    public int getWidgetType() {
+        return mWidgetType;
+    }
+
+    public interface NoteSettingChangedListener {
+        /**
+         * Called when the background color of current note has just changed
+         */
+        void onBackgroundColorChanged();
+
+        /**
+         * Called when user set clock
+         */
+        void onClockAlertChanged(long date, boolean set);
+
+        /**
+         * Call when user create note from widget
+         */
+        void onWidgetChanged();
+
+        /**
+         * Call when switch between check list mode and normal mode
+         * @param oldMode is previous mode before change
+         * @param newMode is new mode
+         */
+        void onCheckListModeChanged(int oldMode, int newMode);
+    }
+}

other/07_210440246蔡安南_代码标注/res/values-zh-rCN/arrays.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 这是一个字符串数组资源，用于定义一个分享的方式菜单 -->
+<resources>
+    <string-array name="menu_share_ways">
+        <item>短信</item>
+        <item>邮件</item>
+    </string-array>
+</resources>

other/07_210440246蔡安南_代码标注/res/values-zh-rCN/strings.xml

@@ -0,0 +1,112 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!-- 语言设置是简体中文时的文字提示文件 -->
+<resources xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+    <string name="app_name">便签</string>
+    <string name="app_widget2x2">便签2x2</string>
+    <string name="app_widget4x4">便签4x4</string>
+    <string name="widget_havenot_content">没有关联内容，点击新建便签。</string>
+    <string name="widget_under_visit_mode">访客模式下，便签内容不可见</string>
+    <string name="notelist_string_info">...</string>
+    <string name="notelist_menu_new">新建便签</string>
+    <string name="delete_remind_time_message">成功删除提醒</string>
+    <string name="set_remind_time_message">创建提醒</string>
+    <string name="note_alert_expired">已过期</string>
+    <string name="format_date_ymd">yyyyMMdd</string>
+    <string name="format_datetime_mdhm">MM月dd日 kk:mm</string>
+    <string name="notealert_ok">知道了</string>
+    <string name="notealert_enter">查看</string>
+    <string name="note_link_tel">呼叫电话</string>
+    <string name="note_link_email">发送邮件</string>
+    <string name="note_link_web">浏览网页</string>
+    <string name="note_link_other">打开地图</string>
+    <!-- note list string -->
+    <string name="menu_create_folder">新建文件夹</string>
+    <string name="menu_export_text">导出文本</string>
+    <string name="menu_sync">同步</string>
+    <string name="menu_sync_cancel">取消同步</string>
+    <string name="menu_setting">设置</string>
+    <string name="menu_search">搜索</string>
+    <string name="menu_delete">删除</string>
+    <string name="menu_move">移动到文件夹</string>
+    <string name="menu_select_title">选中了 %d 项</string>
+    <string name="menu_select_none">没有选中项，操作无效</string>
+    <string name="menu_select_all">全选</string>
+    <string name="menu_deselect_all">取消全选</string>
+    <string name="menu_font_size">文字大小</string>
+    <string name="menu_font_small">小</string>
+    <string name="menu_font_normal">正常</string>
+    <string name="menu_font_large">大</string>
+    <string name="menu_font_super">超大</string>
+    <string name="menu_list_mode">进入清单模式</string>
+    <string name="menu_normal_mode">退出清单模式</string>
+    <string name="menu_folder_view">查看文件夹</string>
+    <string name="menu_folder_delete">刪除文件夹</string>
+    <string name="menu_folder_change_name">修改文件夹名称</string>
+    <string name="folder_exist">文件夹 %1$s 已存在，请重新命名</string>
+    <string name="menu_share">分享</string>
+    <string name="menu_send_to_desktop">发送到桌面</string>
+    <string name="menu_alert">提醒我</string>
+    <string name="menu_remove_remind">删除提醒</string>
+    <string name="menu_title_select_folder">选择文件夹</string>
+    <string name="menu_move_parent_folder">上一级文件夹</string>
+    <string name="info_note_enter_desktop">已添加到桌面</string>
+    <string name="alert_title_delete">删除</string>
+    <string name="alert_message_delete_notes">确认要删除所选的 %d 条便签吗?</string>
+    <string name="alert_message_delete_note">确认要删除该条便签吗?</string>
+    <string name="alert_message_delete_folder">确认删除文件夹及所包含的便签吗？</string>
+    <string name="format_move_notes_to_folder">已将所选 %1$d 条便签移到 %2$s 文件夹</string>
+    <!-- export text -->
+    <string name="error_sdcard_unmounted">SD卡被占用，不能操作</string>
+    <string name="error_sdcard_export">导出文本时发生错误，请检查SD卡</string>
+    <string name="error_note_not_exist">要查看的便签不存在</string>
+    <string name="error_note_empty_for_clock">不能为空便签设置闹钟提醒</string>
+    <string name="error_note_empty_for_send_to_desktop">不能将空便签发送到桌面</string>
+    <string name="success_sdcard_export">导出成功</string>
+    <string name="failed_sdcard_export">导出失败</string>
+    <string name="format_exported_file_location">已将文本文件(%1$s)输出至SD卡(%2$s)目录</string>
+    <!-- Sync -->
+    <string name="ticker_syncing">同步便签...</string>
+    <string name="ticker_success">同步成功</string>
+    <string name="ticker_fail">同步失败</string>
+    <string name="ticker_cancel">同步已取消</string>
+    <string name="success_sync_account">与%1$s同步成功</string>
+    <string name="error_sync_network">同步失败，请检查网络和帐号设置</string>
+    <string name="error_sync_internal">同步失败，发生内部错误</string>
+    <string name="error_sync_cancelled">同步已取消</string>
+    <string name="sync_progress_login">登录%1$s...</string>
+    <string name="sync_progress_init_list">正在获取服务器便签列表...</string>
+    <string name="sync_progress_syncing">正在同步本地便签...</string>
+    <!-- Preferences -->
+    <string name="preferences_title">设置</string>
+    <string name="preferences_account_title">同步账号</string>
+    <string name="preferences_account_summary">与google task同步便签记录</string>
+    <string name="preferences_last_sync_time">上次同步于 %1$s</string>
+    <string name="preferences_add_account">添加账号</string>
+    <string name="preferences_menu_change_account">更换账号</string>
+    <string name="preferences_menu_remove_account">删除账号</string>
+    <string name="preferences_menu_cancel">取消</string>
+    <string name="preferences_button_sync_immediately">立即同步</string>
+    <string name="preferences_button_sync_cancel">取消同步</string>
+    <string name="preferences_dialog_change_account_title">当前帐号 %1$s</string>
+    <string name="preferences_dialog_change_account_warn_msg">如更换同步帐号，过去的帐号同步信息将被清空，再次切换的同时可能会造成数据重复</string>
+    <string name="preferences_dialog_select_account_title">同步便签</string>
+    <string name="preferences_dialog_select_account_tips">请选择google帐号，便签将与该帐号的google task内容同步。</string>
+    <string name="preferences_toast_cannot_change_account">正在同步中，不能修改同步帐号</string>
+    <string name="preferences_toast_success_set_accout">同步帐号已设置为%1$s</string>
+    <string name="preferences_bg_random_appear_title">新建便签背景颜色随机</string>
+    <string name="button_delete">删除</string>
+    <string name="call_record_folder_name">通话便签</string>
+    <string name="hint_foler_name">请输入名称</string>
+    <string name="search_label">正在搜索便签</string>
+    <string name="search_hint">搜索便签</string>
+    <string name="search_setting_description">便签中的文字</string>
+    <string name="search">便签</string>
+    <string name="datetime_dialog_ok">设置</string>
+    <string name="datetime_dialog_cancel">取消</string>
+    <plurals name="search_results_title">
+        <item quantity="other"><xliff:g id="NUMBER">%1$s</xliff:g> 条符合“<xliff:g id="SEARCH">%2$s</xliff:g>”的搜索结果</item>
+    </plurals>
+
+</resources>

other/07_210440246蔡安南_代码标注/res/values-zh-rTW/arrays.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 这是一个字符串数组资源，用于定义一个分享的方式菜单 -->
+<resources>
+    <string-array name="menu_share_ways">
+        <item>短信</item>
+        <item>邮件</item>
+    </string-array>
+</resources>

other/07_210440246蔡安南_代码标注/res/values-zh-rTW/strings.xml

@@ -0,0 +1,112 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!-- 语言设置是繁体中文时的文字提示文件 -->
+<resources xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+    <string name="app_name">便签</string>
+    <string name="app_widget2x2">便签2x2</string>
+    <string name="app_widget4x4">便签4x4</string>
+    <string name="widget_havenot_content">没有关联内容，点击新建便签。</string>
+    <string name="widget_under_visit_mode">访客模式下，便签内容不可见</string>
+    <string name="notelist_string_info">...</string>
+    <string name="notelist_menu_new">新建便签</string>
+    <string name="delete_remind_time_message">成功删除提醒</string>
+    <string name="set_remind_time_message">创建提醒</string>
+    <string name="note_alert_expired">已过期</string>
+    <string name="format_date_ymd">yyyyMMdd</string>
+    <string name="format_datetime_mdhm">MM月dd日 kk:mm</string>
+    <string name="notealert_ok">知道了</string>
+    <string name="notealert_enter">查看</string>
+    <string name="note_link_tel">呼叫电话</string>
+    <string name="note_link_email">发送邮件</string>
+    <string name="note_link_web">浏览网页</string>
+    <string name="note_link_other">打开地图</string>
+    <!-- note list string -->
+    <string name="menu_create_folder">新建文件夹</string>
+    <string name="menu_export_text">导出文本</string>
+    <string name="menu_sync">同步</string>
+    <string name="menu_sync_cancel">取消同步</string>
+    <string name="menu_setting">设置</string>
+    <string name="menu_search">搜索</string>
+    <string name="menu_delete">删除</string>
+    <string name="menu_move">移动到文件夹</string>
+    <string name="menu_select_title">选中了 %d 项</string>
+    <string name="menu_select_none">没有选中项，操作无效</string>
+    <string name="menu_select_all">全选</string>
+    <string name="menu_deselect_all">取消全选</string>
+    <string name="menu_font_size">文字大小</string>
+    <string name="menu_font_small">小</string>
+    <string name="menu_font_normal">正常</string>
+    <string name="menu_font_large">大</string>
+    <string name="menu_font_super">超大</string>
+    <string name="menu_list_mode">进入清单模式</string>
+    <string name="menu_normal_mode">退出清单模式</string>
+    <string name="menu_folder_view">查看文件夹</string>
+    <string name="menu_folder_delete">刪除文件夹</string>
+    <string name="menu_folder_change_name">修改文件夹名称</string>
+    <string name="folder_exist">文件夹 %1$s 已存在，请重新命名</string>
+    <string name="menu_share">分享</string>
+    <string name="menu_send_to_desktop">发送到桌面</string>
+    <string name="menu_alert">提醒我</string>
+    <string name="menu_remove_remind">删除提醒</string>
+    <string name="menu_title_select_folder">选择文件夹</string>
+    <string name="menu_move_parent_folder">上一级文件夹</string>
+    <string name="info_note_enter_desktop">已添加到桌面</string>
+    <string name="alert_title_delete">删除</string>
+    <string name="alert_message_delete_notes">确认要删除所选的 %d 条便签吗?</string>
+    <string name="alert_message_delete_note">确认要删除该条便签吗?</string>
+    <string name="alert_message_delete_folder">确认删除文件夹及所包含的便签吗？</string>
+    <string name="format_move_notes_to_folder">已将所选 %1$d 条便签移到 %2$s 文件夹</string>
+    <!-- export text -->
+    <string name="error_sdcard_unmounted">SD卡被占用，不能操作</string>
+    <string name="error_sdcard_export">导出文本时发生错误，请检查SD卡</string>
+    <string name="error_note_not_exist">要查看的便签不存在</string>
+    <string name="error_note_empty_for_clock">不能为空便签设置闹钟提醒</string>
+    <string name="error_note_empty_for_send_to_desktop">不能将空便签发送到桌面</string>
+    <string name="success_sdcard_export">导出成功</string>
+    <string name="failed_sdcard_export">导出失败</string>
+    <string name="format_exported_file_location">已将文本文件(%1$s)输出至SD卡(%2$s)目录</string>
+    <!-- Sync -->
+    <string name="ticker_syncing">同步便签...</string>
+    <string name="ticker_success">同步成功</string>
+    <string name="ticker_fail">同步失败</string>
+    <string name="ticker_cancel">同步已取消</string>
+    <string name="success_sync_account">与%1$s同步成功</string>
+    <string name="error_sync_network">同步失败，请检查网络和帐号设置</string>
+    <string name="error_sync_internal">同步失败，发生内部错误</string>
+    <string name="error_sync_cancelled">同步已取消</string>
+    <string name="sync_progress_login">登录%1$s...</string>
+    <string name="sync_progress_init_list">正在获取服务器便签列表...</string>
+    <string name="sync_progress_syncing">正在同步本地便签...</string>
+    <!-- Preferences -->
+    <string name="preferences_title">设置</string>
+    <string name="preferences_account_title">同步账号</string>
+    <string name="preferences_account_summary">与google task同步便签记录</string>
+    <string name="preferences_last_sync_time">上次同步于 %1$s</string>
+    <string name="preferences_add_account">添加账号</string>
+    <string name="preferences_menu_change_account">更换账号</string>
+    <string name="preferences_menu_remove_account">删除账号</string>
+    <string name="preferences_menu_cancel">取消</string>
+    <string name="preferences_button_sync_immediately">立即同步</string>
+    <string name="preferences_button_sync_cancel">取消同步</string>
+    <string name="preferences_dialog_change_account_title">当前帐号 %1$s</string>
+    <string name="preferences_dialog_change_account_warn_msg">如更换同步帐号，过去的帐号同步信息将被清空，再次切换的同时可能会造成数据重复</string>
+    <string name="preferences_dialog_select_account_title">同步便签</string>
+    <string name="preferences_dialog_select_account_tips">请选择google帐号，便签将与该帐号的google task内容同步。</string>
+    <string name="preferences_toast_cannot_change_account">正在同步中，不能修改同步帐号</string>
+    <string name="preferences_toast_success_set_accout">同步帐号已设置为%1$s</string>
+    <string name="preferences_bg_random_appear_title">新建便签背景颜色随机</string>
+    <string name="button_delete">删除</string>
+    <string name="call_record_folder_name">通话便签</string>
+    <string name="hint_foler_name">请输入名称</string>
+    <string name="search_label">正在搜索便签</string>
+    <string name="search_hint">搜索便签</string>
+    <string name="search_setting_description">便签中的文字</string>
+    <string name="search">便签</string>
+    <string name="datetime_dialog_ok">设置</string>
+    <string name="datetime_dialog_cancel">取消</string>
+    <plurals name="search_results_title">
+        <item quantity="other"><xliff:g id="NUMBER">%1$s</xliff:g> 条符合“<xliff:g id="SEARCH">%2$s</xliff:g>”的搜索结果</item>
+    </plurals>
+
+</resources>

other/07_210440246蔡安南_代码标注/res/values/arrays.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- 定义备份格式 -->
+    <string-array name="format_for_exported_note">
+        <item>-%s</item>      <!-- 文件夹名称格式 -->
+        <item>--%s</item>     <!-- 文件夹中笔记的日期格式 -->
+        <item>--%s</item>     <!-- 笔记日期格式 -->
+        <item>--%s</item>     <!-- 笔记内容格式 -->
+    </string-array>
+
+    <!-- 定义分享方式 -->
+    <string-array name="menu_share_ways">
+        <item>Messaging</item>
+        <item>Email</item>
+    </string-array>
+</resources>

other/07_210440246蔡安南_代码标注/res/values/colors.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 定义了一个名为 "user_query_highlight"，值为 #335b5b5b 的颜色资源。-->
+<resources>
+    <color name="user_query_highlight">#335b5b5b</color>
+</resources>

other/07_210440246蔡安南_代码标注/res/values/dimens.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- 定义字体大小 -->
+    <dimen name="text_font_size_super">33sp</dimen>
+    <dimen name="text_font_size_large">26sp</dimen>
+    <dimen name="text_font_size_medium">20sp</dimen>
+    <dimen name="text_font_size_normal">17sp</dimen>
+    <dimen name="text_font_size_small">14sp</dimen>
+</resources>

other/07_210440246蔡安南_代码标注/res/values/strings.xml

@@ -0,0 +1,135 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+    <!-- 应用名 -->
+    <string name="app_name">Notes</string>
+
+    <!-- 小部件名称 -->
+    <string name="app_widget2x2">Notes 2x2</string>
+    <string name="app_widget4x4">Notes 4x4</string>
+    
+    <!-- 小部件提示文字 -->
+    <string name="widget_havenot_content">No associated note found, click to create associated note.</string>
+    <string name="widget_under_visit_mode">Privacy mode，can not see note content</string>
+    
+    <string name="notelist_string_info">...</string>
+    
+    <!-- 功能按键名称 -->
+    <string name="notelist_menu_new">Add note</string>
+    <string name="delete_remind_time_message">Delete reminder successfully</string>
+    <string name="set_remind_time_message">Set reminder</string>
+    <string name="note_alert_expired">Expired</string>
+    <string name="format_date_ymd">yyyyMMdd</string>
+    <string name="format_datetime_mdhm">MMMd kk:mm</string>
+    <string name="notealert_ok">Got it</string>
+    <string name="notealert_enter">Take a look</string>
+    <string name="note_link_tel">Call</string>
+    <string name="note_link_email">Send email</string>
+    <string name="note_link_web">Browse web</string>
+    <string name="note_link_other">Open map</string>
+
+    <!-- 导出文本提示信息 -->
+    <string name="file_path">/MIUI/notes/</string>
+    <string name="file_name_txt_format">notes_%s.txt</string>
+
+    <!-- 便签属性文字 -->
+    <string name="format_folder_files_count">(%d)</string>
+    <string name="menu_create_folder">New Folder</string>
+    <string name="menu_export_text">Export text</string>
+    <string name="menu_sync">Sync</string>
+    <string name="menu_sync_cancel">Cancel syncing</string>
+    <string name="menu_setting">Settings</string>
+    <string name="menu_search">Search</string>
+    <string name="menu_delete">Delete</string>
+    <string name="menu_move">Move to folder</string>
+    <string name="menu_select_title">%d selected</string>
+    <string name="menu_select_none">Nothing selected, the operation is invalid</string>
+    <string name="menu_select_all">Select all</string>
+    <string name="menu_deselect_all">Deselect all</string>
+    <string name="menu_font_size">Font size</string>
+    <string name="menu_font_small">Small</string>
+    <string name="menu_font_normal">Medium</string>
+    <string name="menu_font_large">Large</string>
+    <string name="menu_font_super">Super</string>
+    <string name="menu_list_mode">Enter check list</string>
+    <string name="menu_normal_mode">Leave check list</string>
+    <string name="menu_folder_view">View folder</string>
+    <string name="menu_folder_delete">Delete folder</string>
+    <string name="menu_folder_change_name">Change folder name</string>
+    <string name="folder_exist">The folder %1$s exist, please rename</string>
+    <string name="menu_share">Share</string>
+    <string name="menu_send_to_desktop">Send to home</string>
+    <string name="menu_alert">Remind me</string>
+    <string name="menu_remove_remind">Delete reminder</string>
+    <string name="menu_title_select_folder">Select folder</string>
+    <string name="menu_move_parent_folder">Parent folder</string>
+    <string name="info_note_enter_desktop">Note added to home</string>
+
+    <!-- 跳出式弹窗提示文字 -->
+    <string name="alert_message_delete_folder">Confirm to delete folder and its notes?</string>
+    <string name="alert_title_delete">Delete selected notes</string>
+    <string name="alert_message_delete_notes">Confirm to delete the selected %d notes?</string>
+    <string name="alert_message_delete_note">Confirm to delete this note?</string>
+    <string name="format_move_notes_to_folder">Have moved selected %1$d notes to %2$s folder</string>
+
+    <!-- 报错信息 -->
+    <string name="error_sdcard_unmounted">SD card busy, not available now</string>
+    <string name="error_sdcard_export">Export failed, please check SD card</string>
+    <string name="error_note_not_exist">The note is not exist</string>
+    <string name="error_note_empty_for_clock">Sorry, can not set clock on empty note</string>
+    <string name="error_note_empty_for_send_to_desktop">Sorry, can not send and empty note to home</string>
+    <string name="success_sdcard_export">Export successful</string>
+    <string name="failed_sdcard_export">Export fail</string>
+    <string name="format_exported_file_location">Export text file (%1$s) to SD (%2$s) directory</string>
+
+    <!-- 同步提示 -->
+    <string name="ticker_syncing">Syncing notes...</string>
+    <string name="ticker_success">Sync is successful</string>
+    <string name="ticker_fail">Sync is failed</string>
+    <string name="ticker_cancel">Sync is canceled</string>
+    <string name="success_sync_account">Sync is successful with account %1$s</string>
+    <string name="error_sync_network">Sync failed, please check network and account settings</string>
+    <string name="error_sync_internal">Sync failed, internal error occurs</string>
+    <string name="error_sync_cancelled">Sync is canceled</string>
+    <string name="sync_progress_login">Logging into %1$s...</string>
+    <string name="sync_progress_init_list">Getting remote note list...</string>
+    <string name="sync_progress_syncing">Synchronize local notes with Google Task...</string>
+    
+    <!-- 个人选项 -->
+    <string name="preferences_title">Settings</string>
+    <string name="preferences_account_title">Sync account</string>
+    <string name="preferences_account_summary">Sync notes with google task</string>
+    <string name="preferences_last_sync_time">Last sync time %1$s</string>
+    <string name="preferences_last_sync_time_format">yyyy-MM-dd hh:mm:ss</string>
+    <string name="preferences_add_account">Add account</string>
+    <string name="preferences_menu_change_account">Change sync account</string>
+    <string name="preferences_menu_remove_account">Remove sync account</string>
+    <string name="preferences_menu_cancel">Cancel</string>
+    <string name="preferences_button_sync_immediately">Sync immediately</string>
+    <string name="preferences_button_sync_cancel">Cancel syncing</string>
+    <string name="preferences_dialog_change_account_title">Current account %1$s</string>
+    <string name="preferences_dialog_change_account_warn_msg">All sync related information will be deleted, which may result in duplicated items sometime</string>
+    <string name="preferences_dialog_select_account_title">Sync notes</string>
+    <string name="preferences_dialog_select_account_tips">Please select a google account. Local notes will be synced with google task.</string>
+    <string name="preferences_toast_cannot_change_account">Cannot change the account because sync is in progress</string>
+    <string name="preferences_toast_success_set_accout">%1$s has been set as the sync account</string>
+    <string name="preferences_bg_random_appear_title">New note background color random</string>
+
+    <string name="button_delete">Delete</string>
+    <string name="call_record_folder_name">Call notes</string>
+    <string name="hint_foler_name">Input name</string>
+
+    <!-- 同步按键提示 -->
+    <string name="search_label">Searching Notes</string>
+    <string name="search_hint">Search notes</string>
+    <string name="search_setting_description">Text in your notes</string>
+    <string name="search">Notes</string>
+    <string name="datetime_dialog_ok">set</string>
+    <string name="datetime_dialog_cancel">cancel</string>
+    <plurals name="search_results_title">
+         <item quantity="one"><xliff:g id="number" example="1">%1$s</xliff:g> result for \"<xliff:g id="search" example="???">%2$s</xliff:g>\"</item>
+        <!-- Case of 0 or 2 or more results. -->
+        <item quantity="other"><xliff:g id="number" example="15">%1$s</xliff:g> results for \"<xliff:g id="search" example="???">%2$s</xliff:g>\"</item>
+    </plurals>
+
+</resources>

other/07_210440246蔡安南_代码标注/res/values/styles.xml

@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!-- 定义了一些文字样式 -->
+<resources>
+    <!-- 超大号字体样式 -->
+    <style name="TextAppearanceSuper">
+        <item name="android:textSize">@dimen/text_font_size_super</item>
+        <item name="android:textColorLink">#0000ff</item>
+    </style>
+
+    <!-- 大号字体样式 -->
+    <style name="TextAppearanceLarge">
+        <item name="android:textSize">@dimen/text_font_size_large</item>
+        <item name="android:textColorLink">#0000ff</item>
+    </style>
+
+    <!-- 中号字体样式 -->
+    <style name="TextAppearanceMedium">
+        <item name="android:textSize">@dimen/text_font_size_medium</item>
+        <item name="android:textColorLink">#0000ff</item>
+    </style>
+
+    <!-- 正常大小字体样式 -->
+    <style name="TextAppearanceNormal">
+        <item name="android:textSize">@dimen/text_font_size_normal</item>
+        <item name="android:textColorLink">#0000ff</item>
+    </style>
+
+    <!-- 字体主要样式 -->
+    <style name="TextAppearancePrimaryItem">
+        <item name="android:textSize">@dimen/text_font_size_normal</item>
+        <item name="android:textColor">@color/primary_text_dark</item>
+    </style>
+
+    <!-- 字体附属样式 -->
+    <style name="TextAppearanceSecondaryItem">
+        <item name="android:textSize">@dimen/text_font_size_small</item>
+        <item name="android:textColor">@color/secondary_text_dark</item>
+    </style>
+
+    <style name="TextAppearanceUnderMenuIcon">
+        <item name="android:textSize">@dimen/text_font_size_normal</item>
+        <item name="android:textColor">@android:color/black</item>
+    </style>
+
+    <style name="HighlightTextAppearancePrimary">
+    <item name="android:textSize">@dimen/text_font_size_normal</item>
+        <item name="android:textColor">@color/primary_text_dark</item>
+    </style>
+
+    <style name="HighlightTextAppearanceSecondary">
+        <item name="android:textSize">@dimen/text_font_size_small</item>
+        <item name="android:textColor">@color/secondary_text_dark</item>
+    </style>
+
+    <!-- 主题字体样式 -->
+    <style name="NoteTheme" parent="@android:style/Theme.Holo.Light">
+        <item name="android:actionBarStyle">@style/NoteActionBarStyle</item>
+    </style>
+
+    <style name="NoteActionBarStyle" parent="@android:style/Widget.Holo.Light.ActionBar.Solid">
+        <item name="android:displayOptions" />
+        <item name="android:visibility">gone</item>
+    </style>
+</resources>

other/07_210440246蔡安南_代码标注/res/xml/preferences.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 定义一个首选项屏幕 -->
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- 定义一个首选项类别，用于放置其他首选项 -->
+    <PreferenceCategory android:key="pref_sync_account_key">
+        <!-- 这里可以添加其他首选项 -->
+    </PreferenceCategory>
+
+    <!-- 定义一个首选项类别 -->
+    <PreferenceCategory>
+        <!-- 定义一个复选框首选项 -->
+        <CheckBoxPreference
+            android:key="pref_key_bg_random_appear"
+            android:title="@string/preferences_bg_random_appear_title"
+            android:defaultValue="false" />
+    </PreferenceCategory>
+</PreferenceScreen>

other/07_210440246蔡安南_代码标注/res/xml/searchable.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--定义一个可搜索的配置文件-->
+<searchable
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:label="@string/search_label"  <!--搜索栏的标签-->
+    android:hint="@string/search_hint"  <!--搜索栏的提示信息-->
+    android:searchMode="queryRewriteFromText"  <!--搜索模式-->
+
+    android:searchSuggestAuthority="notes"  <!--提供搜索建议的内容提供者的Authority-->
+    android:searchSuggestIntentAction="android.intent.action.VIEW"  <!--点击搜索建议时所执行的操作-->
+    android:searchSettingsDescription="@string/search_setting_description"  <!--在系统设置中显示的搜索描述-->
+    android:includeInGlobalSearch="true" />  <!--是否包含在全局搜索中-->

other/07_210440246蔡安南_代码标注/res/xml/widget_2x_info.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- appwidget-provider 是一个 XML 标签，用于声明应用程序小部件提供程序。
+     xmlns:android 属性指定了 Android 的 XML 命名空间。
+     initialLayout 属性指定了小部件的初始化布局文件，即 widget_2x.xml。
+     minWidth 和 minHeight 属性分别指定了小部件的最小宽度和高度。 -->
+<appwidget-provider
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:initialLayout="@layout/widget_2x"
+    android:minWidth="146dip"
+    android:minHeight="146dip">
+</appwidget-provider>

other/07_210440246蔡安南_代码标注/res/xml/widget_4x_info.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!-- appwidget-provider 是一个 XML 标签，用于声明应用程序小部件提供程序。
+     xmlns:android 属性指定了 Android 的 XML 命名空间。
+     initialLayout 属性指定了小部件的初始化布局文件，即 widget_2x.xml。
+     minWidth 和 minHeight 属性分别指定了小部件的最小宽度和高度。 -->
+
+<appwidget-provider
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:initialLayout="@layout/widget_4x"
+    android:minWidth="294dip"
+    android:minHeight="294dip">
+</appwidget-provider>

other/07_210440246蔡安南_代码标注/tool/BackupUtils.java

@@ -0,0 +1,372 @@
+package net.micode.notes.tool;
+
+import android.content.Context;
+import android.database.Cursor;
+import android.os.Environment;
+import android.text.TextUtils;
+import android.text.format.DateFormat;
+import android.util.Log;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.DataConstants;
+import net.micode.notes.data.Notes.NoteColumns;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.PrintStream;
+
+/*
+这是一个Java类，名为`BackupUtils`，它包含一个静态方法`getInstance`，用于获取该类的单例实例。
+
+该方法接受一个`Context`参数，并返回一个`BackupUtils`对象的实例。如果该类的单例实例已经存在，则直接返回该实例，否则创建一个新的实例并返回。
+
+该类的作用是为了在应用程序中提供一种备份数据的方法。
+*/
+
+public class BackupUtils {
+    private static final String TAG = "BackupUtils";
+    // Singleton stuff
+    private static BackupUtils sInstance;
+
+    public static synchronized BackupUtils getInstance(Context context) {
+        if (sInstance == null) {
+            sInstance = new BackupUtils(context);
+        }
+        return sInstance;
+    }
+
+    /**
+     * 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;
+
+    private BackupUtils(Context context) {
+        mTextExport = new TextExport(context);
+    }
+
+    private static boolean externalStorageAvailable() {
+        return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
+    }
+
+    public int exportToText() {
+        return mTextExport.exportToText();
+    }
+
+    public String getExportedTextFileName() {
+        return mTextExport.mFileName;
+    }
+
+    public String getExportedTextFileDir() {
+        return mTextExport.mFileDirectory;
+    }
+
+/*
+这是一个Java类`TextExport`的静态内部类，其中定义了两个静态成员变量`NOTE_PROJECTION`和`DATA_PROJECTION`，它们分别是长度为4和长度为6的字符串数组。
+
+`NOTE_PROJECTION`数组定义了用于查询笔记的列名。它包含笔记的ID、修改日期、片段和类型等信息。`DATA_PROJECTION`数组定义了用于查询数据的列名。它包含数据的内容、MIME类型和其他数据信息。
+
+此外，该类还定义了4个静态常量`NOTE_COLUMN_ID`、`NOTE_COLUMN_MODIFIED_DATE`、`NOTE_COLUMN_SNIPPET`和`NOTE_COLUMN_TYPE`，它们分别表示`NOTE_PROJECTION`数组的索引位置。这些常量可能用于在查询结果中访问相应的列。
+
+这个类用于导出文本数据，并将其保存到某个文件或数据库中。
+*/
+    private static class TextExport {
+        private static final String[] NOTE_PROJECTION = {
+                NoteColumns.ID,
+                NoteColumns.MODIFIED_DATE,
+                NoteColumns.SNIPPET,
+                NoteColumns.TYPE
+        };
+
+        private static final int NOTE_COLUMN_ID = 0;
+
+        private static final int NOTE_COLUMN_MODIFIED_DATE = 1;
+
+        private static final int NOTE_COLUMN_SNIPPET = 2;
+
+        private static final String[] DATA_PROJECTION = {
+                DataColumns.CONTENT,
+                DataColumns.MIME_TYPE,
+                DataColumns.DATA1,
+                DataColumns.DATA2,
+                DataColumns.DATA3,
+                DataColumns.DATA4,
+        };
+
+        private static final int DATA_COLUMN_CONTENT = 0;
+
+        private static final int DATA_COLUMN_MIME_TYPE = 1;
+
+        private static final int DATA_COLUMN_CALL_DATE = 2;
+
+        private static final int DATA_COLUMN_PHONE_NUMBER = 4;
+
+        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;
+
+        private Context mContext;
+        private String mFileName;
+        private String mFileDirectory;
+
+        public TextExport(Context context) {
+            TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note);
+            mContext = context;
+            mFileName = "";
+            mFileDirectory = "";
+        }
+
+        private String getFormat(int id) {
+            return TEXT_FORMAT[id];
+        }
+
+        /**
+         * Export the folder identified by folder id to text
+         */
+
+        这是一个Java类中的一个方法，名为`exportFolderToText`，它接受两个参数：一个字符串类型的`folderId`和一个`PrintStream`类型的`ps`。
+
+/*
+该方法的作用是将指定文件夹中的笔记导出到文本格式，并将结果输出到`PrintStream`对象中。它首先使用`ContentResolver`对象查询属于该文件夹的笔记，然后遍历查询结果，并为每个笔记输出最后修改日期和笔记内容。
+
+具体来说，该方法使用`Notes.CONTENT_NOTE_URI`查询指定文件夹中的笔记，并使用`NOTE_PROJECTION`数组指定要查询的列。然后，它使用`NoteColumns.PARENT_ID`作为查询条件，该条件指定了笔记所属的文件夹。如果查询结果不为空，该方法遍历结果集并为每个笔记调用`exportNoteToText`方法，该方法将笔记的详细信息输出到`PrintStream`对象中。
+*/
+
+        private void exportFolderToText(String folderId, PrintStream ps) {
+            // Query notes belong to this folder
+            Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI,
+                    NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[] {
+                        folderId
+                    }, null);
+
+            if (notesCursor != null) {
+                if (notesCursor.moveToFirst()) {
+                    do {
+                        // Print note's last modified date
+                        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
+                        String noteId = notesCursor.getString(NOTE_COLUMN_ID);
+                        exportNoteToText(noteId, ps);
+                    } while (notesCursor.moveToNext());
+                }
+                notesCursor.close();
+            }
+        }
+
+        /**
+         * Export note identified by id to a print stream
+         */
+
+/*
+这是一个Java类中的一个方法，名为`exportNoteToText`，它接受两个参数：一个字符串类型的`noteId`和一个`PrintStream`类型的`ps`。
+
+该方法的作用是将指定笔记导出到文本格式，并将结果输出到`PrintStream`对象中。它首先使用`ContentResolver`对象查询属于该笔记的数据，然后遍历查询结果，并为每个数据输出相应的内容。
+
+具体来说，该方法使用`Notes.CONTENT_DATA_URI`查询指定笔记的数据，并使用`DATA_PROJECTION`数组指定要查询的列。然后，它使用`DataColumns.NOTE_ID`作为查询条件，该条件指定了数据所属的笔记。如果查询结果不为空，该方法遍历结果集并为每个数据输出相应的内容。
+
+该方法支持两种类型的数据：一种是`DataConstants.CALL_NOTE`类型的数据，它包含电话号码、通话日期和通话附件位置等信息；另一种是`DataConstants.NOTE`类型的数据，它仅包含笔记内容。
+*/
+
+        private void exportNoteToText(String noteId, PrintStream ps) {
+            Cursor dataCursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI,
+                    DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] {
+                        noteId
+                    }, null);
+
+            if (dataCursor != null) {
+                if (dataCursor.moveToFirst()) {
+                    do {
+                        String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE);
+                        if (DataConstants.CALL_NOTE.equals(mimeType)) {
+                            // Print phone number
+                            String phoneNumber = dataCursor.getString(DATA_COLUMN_PHONE_NUMBER);
+                            long callDate = dataCursor.getLong(DATA_COLUMN_CALL_DATE);
+                            String location = dataCursor.getString(DATA_COLUMN_CONTENT);
+
+                            if (!TextUtils.isEmpty(phoneNumber)) {
+                                ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
+                                        phoneNumber));
+                            }
+                            // Print call date
+                            ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), DateFormat
+                                    .format(mContext.getString(R.string.format_datetime_mdhm),
+                                            callDate)));
+                            // Print call attachment location
+                            if (!TextUtils.isEmpty(location)) {
+                                ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
+                                        location));
+                            }
+                        } else if (DataConstants.NOTE.equals(mimeType)) {
+                            String content = dataCursor.getString(DATA_COLUMN_CONTENT);
+                            if (!TextUtils.isEmpty(content)) {
+                                ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
+                                        content));
+                            }
+                        }
+                    } while (dataCursor.moveToNext());
+                }
+                dataCursor.close();
+            }
+            // print a line separator between note
+            try {
+                ps.write(new byte[] {
+                        Character.LINE_SEPARATOR, Character.LETTER_NUMBER
+                });
+            } catch (IOException e) {
+                Log.e(TAG, e.toString());
+            }
+        }
+
+        /**
+         * Note will be exported as text which is user readable
+         */
+        public int exportToText() {
+            if (!externalStorageAvailable()) {
+                Log.d(TAG, "Media was not mounted");
+                return STATE_SD_CARD_UNMOUONTED;
+            }
+
+            PrintStream ps = getExportToTextPrintStream();
+            if (ps == null) {
+                Log.e(TAG, "get print stream error");
+                return STATE_SYSTEM_ERROR;
+            }
+            // First export folder and its notes
+            Cursor folderCursor = mContext.getContentResolver().query(
+                    Notes.CONTENT_NOTE_URI,
+                    NOTE_PROJECTION,
+                    "(" + NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER + " AND "
+                            + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + ") OR "
+                            + NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER, null, null);
+
+            if (folderCursor != null) {
+                if (folderCursor.moveToFirst()) {
+                    do {
+                        // Print folder's name
+                        String folderName = "";
+                        if(folderCursor.getLong(NOTE_COLUMN_ID) == Notes.ID_CALL_RECORD_FOLDER) {
+                            folderName = mContext.getString(R.string.call_record_folder_name);
+                        } else {
+                            folderName = folderCursor.getString(NOTE_COLUMN_SNIPPET);
+                        }
+                        if (!TextUtils.isEmpty(folderName)) {
+                            ps.println(String.format(getFormat(FORMAT_FOLDER_NAME), folderName));
+                        }
+                        String folderId = folderCursor.getString(NOTE_COLUMN_ID);
+                        exportFolderToText(folderId, ps);
+                    } while (folderCursor.moveToNext());
+                }
+                folderCursor.close();
+            }
+
+            // Export notes in root's folder
+            Cursor noteCursor = mContext.getContentResolver().query(
+                    Notes.CONTENT_NOTE_URI,
+                    NOTE_PROJECTION,
+                    NoteColumns.TYPE + "=" + +Notes.TYPE_NOTE + " AND " + NoteColumns.PARENT_ID
+                            + "=0", null, null);
+
+            if (noteCursor != null) {
+                if (noteCursor.moveToFirst()) {
+                    do {
+                        ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format(
+                                mContext.getString(R.string.format_datetime_mdhm),
+                                noteCursor.getLong(NOTE_COLUMN_MODIFIED_DATE))));
+                        // Query data belong to this note
+                        String noteId = noteCursor.getString(NOTE_COLUMN_ID);
+                        exportNoteToText(noteId, ps);
+                    } while (noteCursor.moveToNext());
+                }
+                noteCursor.close();
+            }
+            ps.close();
+
+            return STATE_SUCCESS;
+        }
+
+        /**
+         * Get a print stream pointed to the file {@generateExportedTextFile}
+         */
+/*这是一个Java类中的一个私有方法，名为`getExportToTextPrintStream`，它返回一个`PrintStream`对象。
+
+该方法的作用是创建一个用于导出文本数据的文件，并返回一个`PrintStream`对象，以便将导出的数据输出到该文件中。
+
+具体来说，该方法首先调用`generateFileMountedOnSDcard`方法创建一个文件对象，该方法使用`Context`对象、文件路径和文件名等参数生成一个文件对象，并将该文件保存在SD卡上。如果文件创建失败，则返回`null`。
+
+然后，该方法使用`FileOutputStream`对象创建一个输出流，并将其传递给`PrintStream`对象。最后，该方法返回该`PrintStream`对象，以便将导出的数据输出到该文件中。
+*/
+        private PrintStream getExportToTextPrintStream() {
+            File file = generateFileMountedOnSDcard(mContext, R.string.file_path,
+                    R.string.file_name_txt_format);
+            if (file == null) {
+                Log.e(TAG, "create file to exported failed");
+                return null;
+            }
+            mFileName = file.getName();
+            mFileDirectory = mContext.getString(R.string.file_path);
+            PrintStream ps = null;
+            try {
+                FileOutputStream fos = new FileOutputStream(file);
+                ps = new PrintStream(fos);
+            } catch (FileNotFoundException e) {
+                e.printStackTrace();
+                return null;
+            } catch (NullPointerException e) {
+                e.printStackTrace();
+                return null;
+            }
+            return ps;
+        }
+    }
+
+    /**
+     * Generate the text file to store imported data
+     */
+    private static File generateFileMountedOnSDcard(Context context, int filePathResId, int fileNameFormatResId) {
+        StringBuilder sb = new StringBuilder();
+        sb.append(Environment.getExternalStorageDirectory());
+        sb.append(context.getString(filePathResId));
+        File filedir = new File(sb.toString());
+        sb.append(context.getString(
+                fileNameFormatResId,
+                DateFormat.format(context.getString(R.string.format_date_ymd),
+                        System.currentTimeMillis())));
+        File file = new File(sb.toString());
+
+        try {
+            if (!filedir.exists()) {
+                filedir.mkdir();
+            }
+            if (!file.exists()) {
+                file.createNewFile();
+            }
+            return file;
+        } catch (SecurityException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        return null;
+    }
+}
+
+

other/07_210440246蔡安南_代码标注/tool/DataUtils.java

@@ -0,0 +1,329 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.tool;
+
+import android.content.ContentProviderOperation;
+import android.content.ContentProviderResult;
+import android.content.ContentResolver;
+import android.content.ContentUris;
+import android.content.ContentValues;
+import android.content.OperationApplicationException;
+import android.database.Cursor;
+import android.os.RemoteException;
+import android.util.Log;
+
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.CallNote;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+
+
+/*
+这是一个Java类`DataUtils`，它包含两个静态方法`batchDeleteNotes`和`moveNoteToFoler`。
+
+`batchDeleteNotes`方法接受两个参数：一个`ContentResolver`对象和一个`HashSet<Long>`对象。该方法的作用是批量删除指定ID的笔记，并返回一个布尔值，指示删除操作是否成功。
+
+具体来说，该方法首先检查输入参数`ids`是否为空或包含零个元素。如果是，则返回`true`。否则，该方法遍历`ids`集合，并创建一个`ContentProviderOperation`对象，用于删除指定ID的笔记。然后，该方法将该操作添加到`operationList`列表中，并使用`resolver.applyBatch`方法执行所有操作。如果操作成功，则返回`true`，否则返回`false`。
+
+`moveNoteToFoler`方法接受三个参数：一个`ContentResolver`对象、一个`long`类型的`id`和两个`long`类型的`srcFolderId`和`desFolderId`。该方法的作用是将指定ID的笔记从一个文件夹移动到另一个文件夹。
+
+具体来说，该方法创建一个`ContentValues`对象，用于指定笔记的新父文件夹ID和原始父文件夹ID。然后，该方法使用`resolver.update`方法更新指定ID的笔记，并将其移动到新的文件夹中。
+*/
+
+public class DataUtils {
+    public static final String TAG = "DataUtils";
+    public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) {
+        if (ids == null) {
+            Log.d(TAG, "the ids is null");
+            return true;
+        }
+        if (ids.size() == 0) {
+            Log.d(TAG, "no id is in the hashset");
+            return true;
+        }
+
+        ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
+        for (long id : ids) {
+            if(id == Notes.ID_ROOT_FOLDER) {
+                Log.e(TAG, "Don't delete system folder root");
+                continue;
+            }
+            ContentProviderOperation.Builder builder = ContentProviderOperation
+                    .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
+            operationList.add(builder.build());
+        }
+        try {
+            ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
+            if (results == null || results.length == 0 || results[0] == null) {
+                Log.d(TAG, "delete notes failed, ids:" + ids.toString());
+                return false;
+            }
+            return true;
+        } catch (RemoteException e) {
+            Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+        } catch (OperationApplicationException e) {
+            Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+        }
+        return false;
+    }
+
+    public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) {
+        ContentValues values = new ContentValues();
+        values.put(NoteColumns.PARENT_ID, desFolderId);
+        values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId);
+        values.put(NoteColumns.LOCAL_MODIFIED, 1);
+        resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null);
+    }
+
+    public static boolean batchMoveToFolder(ContentResolver resolver, HashSet<Long> ids,
+            long folderId) {
+        if (ids == null) {
+            Log.d(TAG, "the ids is null");
+            return true;
+        }
+
+        ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
+        for (long id : ids) {
+            ContentProviderOperation.Builder builder = ContentProviderOperation
+                    .newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
+            builder.withValue(NoteColumns.PARENT_ID, folderId);
+            builder.withValue(NoteColumns.LOCAL_MODIFIED, 1);
+            operationList.add(builder.build());
+        }
+
+        try {
+            ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
+            if (results == null || results.length == 0 || results[0] == null) {
+                Log.d(TAG, "delete notes failed, ids:" + ids.toString());
+                return false;
+            }
+            return true;
+        } catch (RemoteException e) {
+            Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+        } catch (OperationApplicationException e) {
+            Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+        }
+        return false;
+    }
+
+    /**
+     * Get the all folder count except system folders {@link Notes#TYPE_SYSTEM}}
+     */
+
+/*
+这是一个Java类`DataUtils`，它包含两个静态方法`getUserFolderCount`和`visibleInNoteDatabase`。
+
+`getUserFolderCount`方法接受一个`ContentResolver`对象，用于查询用户创建的文件夹数量。该方法的作用是查询所有类型为`Notes.TYPE_FOLDER`且不属于回收站的笔记数量，并返回查询结果的数量。
+
+具体来说，该方法使用`resolver.query`方法查询属于用户创建的文件夹的笔记数量，并使用`NoteColumns.TYPE`和`NoteColumns.PARENT_ID`作为查询条件。如果查询结果不为空，则该方法获取第一个结果行的第一个列的值，并将其作为文件夹数量返回。
+
+`visibleInNoteDatabase`方法接受三个参数：一个`ContentResolver`对象、一个`long`类型的`noteId`和一个`int`类型的`type`。该方法的作用是检查指定ID的笔记是否可见，并返回一个布尔值。
+
+具体来说，该方法使用`resolver.query`方法查询指定ID的笔记，并使用`NoteColumns.TYPE`和`NoteColumns.PARENT_ID`作为查询条件。如果查询结果不为空且结果行数大于0，则该方法返回`true`，否则返回`false`。
+
+*/
+    public static int getUserFolderCount(ContentResolver resolver) {
+        Cursor cursor =resolver.query(Notes.CONTENT_NOTE_URI,
+                new String[] { "COUNT(*)" },
+                NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?",
+                new String[] { String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)},
+                null);
+
+        int count = 0;
+        if(cursor != null) {
+            if(cursor.moveToFirst()) {
+                try {
+                    count = cursor.getInt(0);
+                } catch (IndexOutOfBoundsException e) {
+                    Log.e(TAG, "get folder count failed:" + e.toString());
+                } finally {
+                    cursor.close();
+                }
+            }
+        }
+        return count;
+    }
+
+    public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) {
+        Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
+                null,
+                NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER,
+                new String [] {String.valueOf(type)},
+                null);
+
+        boolean exist = false;
+        if (cursor != null) {
+            if (cursor.getCount() > 0) {
+                exist = true;
+            }
+            cursor.close();
+        }
+        return exist;
+    }
+
+    public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) {
+        Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
+                null, null, null, null);
+
+        boolean exist = false;
+        if (cursor != null) {
+            if (cursor.getCount() > 0) {
+                exist = true;
+            }
+            cursor.close();
+        }
+        return exist;
+    }
+
+    public static boolean existInDataDatabase(ContentResolver resolver, long dataId) {
+        Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId),
+                null, null, null, null);
+
+        boolean exist = false;
+        if (cursor != null) {
+            if (cursor.getCount() > 0) {
+                exist = true;
+            }
+            cursor.close();
+        }
+        return exist;
+    }
+
+    public static boolean checkVisibleFolderName(ContentResolver resolver, String name) {
+        Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, null,
+                NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER +
+                " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER +
+                " AND " + NoteColumns.SNIPPET + "=?",
+                new String[] { name }, null);
+        boolean exist = false;
+        if(cursor != null) {
+            if(cursor.getCount() > 0) {
+                exist = true;
+            }
+            cursor.close();
+        }
+        return exist;
+    }
+
+    public static HashSet<AppWidgetAttribute> getFolderNoteWidget(ContentResolver resolver, long folderId) {
+        Cursor c = resolver.query(Notes.CONTENT_NOTE_URI,
+                new String[] { NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE },
+                NoteColumns.PARENT_ID + "=?",
+                new String[] { String.valueOf(folderId) },
+                null);
+
+        HashSet<AppWidgetAttribute> set = null;
+        if (c != null) {
+            if (c.moveToFirst()) {
+                set = new HashSet<AppWidgetAttribute>();
+                do {
+                    try {
+                        AppWidgetAttribute widget = new AppWidgetAttribute();
+                        widget.widgetId = c.getInt(0);
+                        widget.widgetType = c.getInt(1);
+                        set.add(widget);
+                    } catch (IndexOutOfBoundsException e) {
+                        Log.e(TAG, e.toString());
+                    }
+                } while (c.moveToNext());
+            }
+            c.close();
+        }
+        return set;
+    }
+
+/*
+这是一个Java类`DataUtils`，它包含两个静态方法`getCallNumberByNoteId`和`getNoteIdByPhoneNumberAndCallDate`。
+
+`getCallNumberByNoteId`方法接受两个参数：一个`ContentResolver`对象和一个`long`类型的`noteId`。该方法的作用是查询指定ID的笔记中的电话号码，并返回该电话号码的字符串表示形式。
+
+具体来说，该方法使用`resolver.query`方法查询指定ID的笔记，并使用`CallNote.PHONE_NUMBER`作为查询的列名，以及`CallNote.NOTE_ID`和`CallNote.MIME_TYPE`作为查询条件。如果查询结果不为空，则该方法获取第一个结果行的电话号码，并将其作为字符串返回。
+
+`getNoteIdByPhoneNumberAndCallDate`方法接受三个参数：一个`ContentResolver`对象、一个`String`类型的`phoneNumber`和一个`long`类型的`callDate`。该方法的作用是查询包含指定电话号码和通话日期的笔记，并返回该笔记的ID。
+*/
+    public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) {
+        Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
+                new String [] { CallNote.PHONE_NUMBER },
+                CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?",
+                new String [] { String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE },
+                null);
+
+        if (cursor != null && cursor.moveToFirst()) {
+            try {
+                return cursor.getString(0);
+            } catch (IndexOutOfBoundsException e) {
+                Log.e(TAG, "Get call number fails " + e.toString());
+            } finally {
+                cursor.close();
+            }
+        }
+        return "";
+    }
+
+    public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) {
+        Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
+                new String [] { CallNote.NOTE_ID },
+                CallNote.CALL_DATE + "=? AND " + CallNote.MIME_TYPE + "=? AND PHONE_NUMBERS_EQUAL("
+                + CallNote.PHONE_NUMBER + ",?)",
+                new String [] { String.valueOf(callDate), CallNote.CONTENT_ITEM_TYPE, phoneNumber },
+                null);
+
+        if (cursor != null) {
+            if (cursor.moveToFirst()) {
+                try {
+                    return cursor.getLong(0);
+                } catch (IndexOutOfBoundsException e) {
+                    Log.e(TAG, "Get call note id fails " + e.toString());
+                }
+            }
+            cursor.close();
+        }
+        return 0;
+    }
+
+    public static String getSnippetById(ContentResolver resolver, long noteId) {
+        Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI,
+                new String [] { NoteColumns.SNIPPET },
+                NoteColumns.ID + "=?",
+                new String [] { String.valueOf(noteId)},
+                null);
+
+        if (cursor != null) {
+            String snippet = "";
+            if (cursor.moveToFirst()) {
+                snippet = cursor.getString(0);
+            }
+            cursor.close();
+            return snippet;
+        }
+        throw new IllegalArgumentException("Note is not found with id: " + noteId);
+    }
+
+    public static String getFormattedSnippet(String snippet) {
+        if (snippet != null) {
+            snippet = snippet.trim();
+            int index = snippet.indexOf('\n');
+            if (index != -1) {
+                snippet = snippet.substring(0, index);
+            }
+        }
+        return snippet;
+    }
+}

other/07_210440246蔡安南_代码标注/tool/GTaskStringUtils.java

@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.tool;
+
+public class GTaskStringUtils {
+
+    public final static String GTASK_JSON_ACTION_ID = "action_id";
+
+    public final static String GTASK_JSON_ACTION_LIST = "action_list";
+
+    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";
+
+    public final static String GTASK_JSON_CREATOR_ID = "creator_id";
+
+    public final static String GTASK_JSON_CHILD_ENTITY = "child_entity";
+
+    public final static String GTASK_JSON_CLIENT_VERSION = "client_version";
+
+    public final static String GTASK_JSON_COMPLETED = "completed";
+
+    public final static String GTASK_JSON_CURRENT_LIST_ID = "current_list_id";
+
+    public final static String GTASK_JSON_DEFAULT_LIST_ID = "default_list_id";
+
+    public final static String GTASK_JSON_DELETED = "deleted";
+
+    public final static String GTASK_JSON_DEST_LIST = "dest_list";
+
+    public final static String GTASK_JSON_DEST_PARENT = "dest_parent";
+
+    public final static String GTASK_JSON_DEST_PARENT_TYPE = "dest_parent_type";
+
+    public final static String GTASK_JSON_ENTITY_DELTA = "entity_delta";
+
+    public final static String GTASK_JSON_ENTITY_TYPE = "entity_type";
+
+    public final static String GTASK_JSON_GET_DELETED = "get_deleted";
+
+    public final static String GTASK_JSON_ID = "id";
+
+    public final static String GTASK_JSON_INDEX = "index";
+
+    public final static String GTASK_JSON_LAST_MODIFIED = "last_modified";
+
+    public final static String GTASK_JSON_LATEST_SYNC_POINT = "latest_sync_point";
+
+    public final static String GTASK_JSON_LIST_ID = "list_id";
+
+    public final static String GTASK_JSON_LISTS = "lists";
+
+    public final static String GTASK_JSON_NAME = "name";
+
+    public final static String GTASK_JSON_NEW_ID = "new_id";
+
+    public final static String GTASK_JSON_NOTES = "notes";
+
+    public final static String GTASK_JSON_PARENT_ID = "parent_id";
+
+    public final static String GTASK_JSON_PRIOR_SIBLING_ID = "prior_sibling_id";
+
+    public final static String GTASK_JSON_RESULTS = "results";
+
+    public final static String GTASK_JSON_SOURCE_LIST = "source_list";
+
+    public final static String GTASK_JSON_TASKS = "tasks";
+
+    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";
+
+    public final static String GTASK_JSON_USER = "user";
+
+    public final static String MIUI_FOLDER_PREFFIX = "[MIUI_Notes]";
+
+    public final static String FOLDER_DEFAULT = "Default";
+
+    public final static String FOLDER_CALL_NOTE = "Call_Note";
+
+    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";
+
+    public final static String META_NOTE_NAME = "[META INFO] DON'T UPDATE AND DELETE";
+
+}

other/07_210440246蔡安南_代码标注/tool/ResourceParser.java

@@ -0,0 +1,181 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.tool;
+
+import android.content.Context;
+import android.preference.PreferenceManager;
+
+import net.micode.notes.R;
+import net.micode.notes.ui.NotesPreferenceActivity;
+
+public class ResourceParser {
+
+    public static final int YELLOW           = 0;
+    public static final int BLUE             = 1;
+    public static final int WHITE            = 2;
+    public static final int GREEN            = 3;
+    public static final int RED              = 4;
+
+    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;
+
+    public static final int BG_DEFAULT_FONT_SIZE = TEXT_MEDIUM;
+
+    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
+        };
+
+        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
+        };
+
+        public static int getNoteBgResource(int id) {
+            return BG_EDIT_RESOURCES[id];
+        }
+
+        public static int getNoteTitleBgResource(int id) {
+            return BG_EDIT_TITLE_RESOURCES[id];
+        }
+    }
+
+    public static int getDefaultBgId(Context context) {
+        if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean(
+                NotesPreferenceActivity.PREFERENCE_SET_BG_COLOR_KEY, false)) {
+            return (int) (Math.random() * NoteBgResources.BG_EDIT_RESOURCES.length);
+        } else {
+            return BG_DEFAULT_COLOR;
+        }
+    }
+
+    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
+        };
+
+        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
+        };
+
+        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,
+        };
+
+        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
+        };
+
+        public static int getNoteBgFirstRes(int id) {
+            return BG_FIRST_RESOURCES[id];
+        }
+
+        public static int getNoteBgLastRes(int id) {
+            return BG_LAST_RESOURCES[id];
+        }
+
+        public static int getNoteBgSingleRes(int id) {
+            return BG_SINGLE_RESOURCES[id];
+        }
+
+        public static int getNoteBgNormalRes(int id) {
+            return BG_NORMAL_RESOURCES[id];
+        }
+
+        public static int getFolderBgRes() {
+            return R.drawable.list_folder;
+        }
+    }
+
+    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,
+        };
+
+        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
+        };
+
+        public static int getWidget4xBgResource(int id) {
+            return BG_4X_RESOURCES[id];
+        }
+    }
+
+    public static class TextAppearanceResources {
+        private final static int [] TEXTAPPEARANCE_RESOURCES = new int [] {
+            R.style.TextAppearanceNormal,
+            R.style.TextAppearanceMedium,
+            R.style.TextAppearanceLarge,
+            R.style.TextAppearanceSuper
+        };
+
+        public static int getTexAppearanceResource(int id) {
+            /**
+             * HACKME: Fix bug of store the resource id in shared preference.
+             * The id may larger than the length of resources, in this case,
+             * return the {@link ResourceParser#BG_DEFAULT_FONT_SIZE}
+             */
+            if (id >= TEXTAPPEARANCE_RESOURCES.length) {
+                return BG_DEFAULT_FONT_SIZE;
+            }
+            return TEXTAPPEARANCE_RESOURCES[id];
+        }
+
+        public static int getResourcesSize() {
+            return TEXTAPPEARANCE_RESOURCES.length;
+        }
+    }
+}

other/07_210440246蔡安南_代码标注/widget/NoteWidgetProvider.java

@@ -0,0 +1,147 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.widget;
+import android.app.PendingIntent;
+import android.appwidget.AppWidgetManager;
+import android.appwidget.AppWidgetProvider;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.Intent;
+import android.database.Cursor;
+import android.util.Log;
+import android.widget.RemoteViews;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.tool.ResourceParser;
+import net.micode.notes.ui.NoteEditActivity;
+import net.micode.notes.ui.NotesListActivity;
+
+public abstract class NoteWidgetProvider extends AppWidgetProvider {
+    public static final String [] PROJECTION = new String [] {
+        NoteColumns.ID,
+        NoteColumns.BG_COLOR_ID,
+        NoteColumns.SNIPPET
+    };
+
+    public static final int COLUMN_ID           = 0;
+    public static final int COLUMN_BG_COLOR_ID  = 1;
+    public static final int COLUMN_SNIPPET      = 2;
+
+    private static final String TAG = "NoteWidgetProvider";
+
+    @Override
+    public void onDeleted(Context context, int[] appWidgetIds) {
+        ContentValues values = new ContentValues();
+        values.put(NoteColumns.WIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
+        for (int i = 0; i < appWidgetIds.length; i++) {
+            context.getContentResolver().update(Notes.CONTENT_NOTE_URI,
+                    values,
+                    NoteColumns.WIDGET_ID + "=?",
+                    new String[] { String.valueOf(appWidgetIds[i])});
+        }
+    }
+
+/*
+这是一个Java类`NoteWidgetProvider`中的一个方法`update`，它用于更新小部件的内容和外观。
+
+具体来说，`update`方法有两个重载版本：一个公共版本和一个私有版本。公共版本调用私有版本，并将`privacyMode`参数设置为`false`。
+
+私有版本的`update`方法遍历所有小部件ID，并为每个小部件更新内容和外观。具体来说，该方法执行以下步骤：
+
+- 获取小部件的背景ID和内容片段。
+- 创建一个启动笔记编辑或查看活动的意图，并将小部件的ID和类型作为额外参数传递。
+- 如果数据库中存在与小部件ID相对应的笔记，则将意图的操作设置为`Intent.ACTION_VIEW`，并将笔记的ID作为额外参数传递。否则，将操作设置为`Intent.ACTION_INSERT_OR_EDIT`。
+- 根据小部件的背景ID和内容片段，创建一个`RemoteViews`对象，并设置小部件的背景图像和文本。
+- 为小部件的文本视图设置一个单击操作，该操作将启动上述意图。如果`privacyMode`为`true`，则文本视图将显示“正在访问模式”。
+- 使用`AppWidgetManager.updateAppWidget`方法更新小部件的内容和外观。
+
+*/
+    private Cursor getNoteWidgetInfo(Context context, int widgetId) {
+        return context.getContentResolver().query(Notes.CONTENT_NOTE_URI,
+                PROJECTION,
+                NoteColumns.WIDGET_ID + "=? AND " + NoteColumns.PARENT_ID + "<>?",
+                new String[] { String.valueOf(widgetId), String.valueOf(Notes.ID_TRASH_FOLER) },
+                null);
+    }
+
+    protected void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
+        update(context, appWidgetManager, appWidgetIds, false);
+    }
+
+    private void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds,
+            boolean privacyMode) {
+        for (int i = 0; i < appWidgetIds.length; i++) {
+            if (appWidgetIds[i] != AppWidgetManager.INVALID_APPWIDGET_ID) {
+                int bgId = ResourceParser.getDefaultBgId(context);
+                String snippet = "";
+                Intent intent = new Intent(context, NoteEditActivity.class);
+                intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
+                intent.putExtra(Notes.INTENT_EXTRA_WIDGET_ID, appWidgetIds[i]);
+                intent.putExtra(Notes.INTENT_EXTRA_WIDGET_TYPE, getWidgetType());
+
+                Cursor c = getNoteWidgetInfo(context, appWidgetIds[i]);
+                if (c != null && c.moveToFirst()) {
+                    if (c.getCount() > 1) {
+                        Log.e(TAG, "Multiple message with same widget id:" + appWidgetIds[i]);
+                        c.close();
+                        return;
+                    }
+                    snippet = c.getString(COLUMN_SNIPPET);
+                    bgId = c.getInt(COLUMN_BG_COLOR_ID);
+                    intent.putExtra(Intent.EXTRA_UID, c.getLong(COLUMN_ID));
+                    intent.setAction(Intent.ACTION_VIEW);
+                } else {
+                    snippet = context.getResources().getString(R.string.widget_havenot_content);
+                    intent.setAction(Intent.ACTION_INSERT_OR_EDIT);
+                }
+
+                if (c != null) {
+                    c.close();
+                }
+
+                RemoteViews rv = new RemoteViews(context.getPackageName(), getLayoutId());
+                rv.setImageViewResource(R.id.widget_bg_image, getBgResourceId(bgId));
+                intent.putExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, bgId);
+                /**
+                 * Generate the pending intent to start host for the widget
+                 */
+                PendingIntent pendingIntent = null;
+                if (privacyMode) {
+                    rv.setTextViewText(R.id.widget_text,
+                            context.getString(R.string.widget_under_visit_mode));
+                    pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], new Intent(
+                            context, NotesListActivity.class), PendingIntent.FLAG_UPDATE_CURRENT);
+                } else {
+                    rv.setTextViewText(R.id.widget_text, snippet);
+                    pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], intent,
+                            PendingIntent.FLAG_UPDATE_CURRENT);
+                }
+
+                rv.setOnClickPendingIntent(R.id.widget_text, pendingIntent);
+                appWidgetManager.updateAppWidget(appWidgetIds[i], rv);
+            }
+        }
+    }
+
+    protected abstract int getBgResourceId(int bgId);
+
+    protected abstract int getLayoutId();
+
+    protected abstract int getWidgetType();
+}

other/07_210440246蔡安南_代码标注/widget/NoteWidgetProvider_2x.java

@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.widget;
+
+import android.appwidget.AppWidgetManager;
+import android.content.Context;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.tool.ResourceParser;
+
+/*
+这是一个Java类`NoteWidgetProvider_2x`，它继承自`NoteWidgetProvider`类。
+
+`NoteWidgetProvider_2x`类覆盖了`NoteWidgetProvider`类的三个方法：`onUpdate`、`getLayoutId`和`getBgResourceId`。
+
+`onUpdate`方法调用了`NoteWidgetProvider`类的`update`方法，并传递了相同的参数。
+
+`getLayoutId`方法返回小部件布局的资源ID，该布局用于在小部件上显示笔记的内容。
+
+`getBgResourceId`方法返回小部件背景的资源ID，该背景用于在小部件上显示笔记的背景。
+
+`getWidgetType`方法返回小部件的类型，该类型为`Notes.TYPE_WIDGET_2X`，表示这是一个2x2大小的小部件。
+*/
+
+public class NoteWidgetProvider_2x extends NoteWidgetProvider {
+    @Override
+    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
+        super.update(context, appWidgetManager, appWidgetIds);
+    }
+
+    @Override
+    protected int getLayoutId() {
+        return R.layout.widget_2x;
+    }
+
+    @Override
+    protected int getBgResourceId(int bgId) {
+        return ResourceParser.WidgetBgResources.getWidget2xBgResource(bgId);
+    }
+
+    @Override
+    protected int getWidgetType() {
+        return Notes.TYPE_WIDGET_2X;
+    }
+}

other/07_210440246蔡安南_代码标注/widget/NoteWidgetProvider_4x.java

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.widget;
+
+import android.appwidget.AppWidgetManager;
+import android.content.Context;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.tool.ResourceParser;
+
+/*
+这是一个Java类`NoteWidgetProvider_2x`，它继承自`NoteWidgetProvider`类。
+
+`NoteWidgetProvider_2x`类覆盖了`NoteWidgetProvider`类的三个方法：`onUpdate`、`getLayoutId`和`getBgResourceId`。
+
+`onUpdate`方法调用了`NoteWidgetProvider`类的`update`方法，并传递了相同的参数。
+
+`getLayoutId`方法返回小部件布局的资源ID，该布局用于在小部件上显示笔记的内容。
+
+`getBgResourceId`方法返回小部件背景的资源ID，该背景用于在小部件上显示笔记的背景。
+
+`getWidgetType`方法返回小部件的类型，该类型为`Notes.TYPE_WIDGET_2X`，表示这是一个2x2大小的小部件。
+*/
+
+public class NoteWidgetProvider_4x extends NoteWidgetProvider {
+    @Override
+    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
+        super.update(context, appWidgetManager, appWidgetIds);
+    }
+
+    protected int getLayoutId() {
+        return R.layout.widget_4x;
+    }
+
+    @Override
+    protected int getBgResourceId(int bgId) {
+        return ResourceParser.WidgetBgResources.getWidget4xBgResource(bgId);
+    }
+
+    @Override
+    protected int getWidgetType() {
+        return Notes.TYPE_WIDGET_4X;
+    }
+}

other/07_211440108向金成_代码标注/AndroidManifest.xml

@@ -0,0 +1,339 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+version  表示应该用什么版本号的解析器去解析该XML文件
+encoding 表示应该用什么样的编码去翻译
+-->
+
+<!-- Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<!-- 1、xmlns为命名空间属性，android 为命名空间名字，http://schemas.android.com/apk/res/android URI标识命名空间资源在互联网上位置
+ 2、XML中有元素（便签）和属性2个概念，元素的形式为<元素名 属性名="属性的值“> </元素名>
+ 3、<manifest> </manifest>为根元素（便签） 即第一个出现的元素，是后面元素的根
+ 4、<uses-sdk android:minSdkVersion="14"/> 为空便签，与属性配合 空便签形式为<元素名/>
+ 5、元素可以进行嵌套
+ 6、每个AndroidManifest，xml文件中必须包含其只能包含一个manifest元素
+ -->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+
+    package="net.micode.notes"
+    android:versionCode="1"
+    android:versionName="0.1" >
+    <!--
+    1、package的属性值是java目录下的软件包的包名也是默认的进程名同时也是命名空间名，且值在后面组件中会替换以.开头的声明，
+    如android:name=".ui.NotesListActivity" 会解析成android:name="net.micode.notes.ui.NotesListActivity"
+    2、versionCode为命名空间android的属性，表示应用版本号，是用于更新的，应为1、2、3这样的形式
+    3、versionName也为命名空间android的属性，是给用户看的当前版本号，可以为1.1；1.2；1.2.1 这样的形式
+    -->
+
+    <uses-sdk android:minSdkVersion="14" />
+    <!--
+    配置SDK版本的，在此标签下，可以给android:minSdkVersion， android:maxSdkVersion，android:targetSdkVersion 这3种属性
+    进行设置，属性值为API版本，与android的版本有对应关系，minSdkVersion的值指定了能使用该软件的最小API也间接指定了最小的安卓版本，
+    maxSdkVersion的值指定了最大的安卓版本，当前安卓版本高于设置的则不能使用用于，targetSdkVersion的值指定了目标安卓版本，在此版本下
+    已通过测试
+    -->
+
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <!--
+    该便签为使用应用必须授予的权限，android:name为权限名名字，android.permission.WRITE_EXTERNAL_STORAGE为权限名属性值
+    不同属性值表示要授予不同的权限，该便签表示必须授权应用将数据写入外部储存的权限
+    -->
+    <uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT" />
+    <!--
+    应用必须授予的权限是 能在桌面创建快捷方式
+    -->
+    <uses-permission android:name="android.permission.INTERNET" />
+    <!--
+    申请访问网络的权限
+    -->
+    <uses-permission android:name="android.permission.READ_CONTACTS" />
+    <!--
+    申请读取联系人信息的权限
+    -->
+    <uses-permission android:name="android.permission.MANAGE_ACCOUNTS" />
+    <!--
+    申请管理账户的权限
+    -->
+    <uses-permission android:name="android.permission.AUTHENTICATE_ACCOUNTS" />
+    <!--
+    申请验证账户的权限
+    -->
+    <uses-permission android:name="android.permission.GET_ACCOUNTS" />
+    <!--
+    申请获得gmail账户的权限
+    -->
+    <uses-permission android:name="android.permission.USE_CREDENTIALS" />
+    <!--
+    申请使用凭证的权限，与账户管理有关
+    -->
+    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
+    <!--
+    申请开机启动应用的权限
+    -->
+
+    <application
+        android:icon="@drawable/icon_app"
+        android:label="@string/app_name" >
+        <!--
+        1、manifest元素必须且只能包含一个application元素，application元素中声明了应用需要用到的组件及其属性
+        2、android:icon 属性是应用的图标,属性值是对包含图片的可绘制资源的引用，即@res文件夹下的文件名/图片
+        3、android:label 属性是应用的标签，属性值是对字符串资源的引用
+        -->
+        <activity
+            android:name=".ui.NotesListActivity"
+            android:configChanges="keyboardHidden|orientation|screenSize"
+            android:label="@string/app_name"
+            android:launchMode="singleTop"
+            android:theme="@style/NoteTheme"
+            android:uiOptions="splitActionBarWhenNarrow"
+            android:windowSoftInputMode="adjustPan" >
+            <!--
+            1、activity元素 声明了一个可视化界面（是Activity类的一个子类），应用所有的可视化界面都必须在清单里进行声明，未声明的不会进行服务
+            2、android:name属性 是activity类的类名，属性值必须是完全限定类名，即带包名，用.隔开的路径名，当前类名以.开头，.等于manifest
+            中的package的属性值，所以完整类名是net.micode.notes.ui.NotesListActivity，必须设置名字
+            3、android:configChanges属性 是指定了该activity类自动处理的配置变更，若无该属性，当配置变更时，会重启该界面，有该属性不会重启，
+            保证一直活跃，属性值为该界面会自动处理的配置变更。
+            keyboardHidden 用户打开虚拟键盘；orientation 用户更改手机界面反向，旋转手机；screenSize 界面方向改变后，界面尺寸改变
+            多个属性值之间用|分隔
+            4、android:label属性 是指定当前界面的便签和该activity元素嵌套的intent-filter元素的默认便签，若未指定则为application元素里指定的便签
+            5、android:launchMode属性 是该activity类的启动模式，一般用standard和singeTop模式，standard（默认模式下，系统始终会
+            实例化一个新的activity进行intent传递，singleTop模式下，如果目标任务的栈顶有activity实例，不会再实例化，而是通过方法传递intent。
+            6、android:theme属性 指定了activity的主题，是对样式资源的引用
+            7、android:uiOptions属性 指定了界面的额外选项，属性值splitActionBarWhenNarrow是当竖屏是，分隔出一个操作栏
+            8、android:windowSoftInputMode属性  指定了主窗口与包含软键盘窗口之间的交互方式
+            -->
+
+            <intent-filter>
+                <!--
+                intent-filter元素 指定了父activity、receiver、provider组件能够响应的intent对象，不是指定的类型则过滤掉
+                通过子元素action，category、data来进行过滤器的大部分内容设置
+                组件之间通过intent传递消息
+                -->
+                <action android:name="android.intent.action.MAIN" />
+                <!--
+                action元素 指定了可接受的intent对象的操作，android:name属性为操作名，属性值为操作
+                intent对象有一些标准的操作形式为ACTION_MAIN、ACTION_INSERT等等，在将标准操作分配给action元素时，属性值为
+                android.intent.action.MAIN 这样的类型，若分配自定义操作，则属性值最好为 软件包名.操作名
+                android.intent.action.MAIN  该属性值表名当前activity为主程序入口即最先启动的activity
+                -->
+                <category android:name="android.intent.category.LAUNCHER" />
+                <!--
+                category元素 指定了可接受intent对象的类别， android:name为类别名属性，intent中也有一些标准category，在使用标准
+                category时，也想action属性一样，应加前缀android.intent.category.类别名，若要用自定义类别也最好软件包名.类别名
+                android.intent.category.LAUNCHER属性值  指定该activity是第一个启动的，即应用主界面，与android.intent.action.MAIN
+                配对使用
+                -->
+            </intent-filter>
+        </activity>
+
+        <activity
+            android:name=".ui.NoteEditActivity"
+            android:configChanges="keyboardHidden|orientation|screenSize"
+            android:launchMode="singleTop"
+            android:theme="@style/NoteTheme" >
+            <!--
+            1、指定类名为 net.micode.notes.ui.NoteEditActivity
+            2、自动处理的配置变更   软硬盘|屏幕旋转|界面大小改变
+            3、启动模式   singleTop  当目标任务的栈顶有该activity实例时，不新实例化而只向其传递intent
+            4、界面主题   引用样式资源  NoteTheme
+            -->
+
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+                <!--
+                intent过滤器的action元素的 属性值为android.intent.action.VIEW，指定该activity 是显示用户数据的，根据不同数据
+                显示不同界面
+                -->
+                <category android:name="android.intent.category.DEFAULT" />
+                <!--
+                指定该activity能接受隐式intent
+                -->
+                <data android:mimeType="vnd.android.cursor.item/text_note" />
+                <!--
+                data属性 是指定该intent携带的数据形式，android:mimeType属性 是指定该数据的类型
+                /前面的与URI的数据有关，如果URI的数据是图片，则为image，/后面的是具体的类型，如图片的格式可以是jpg
+                vnd.android.cursor.item/text_note属性值 指定URI包含的数据是单条的，且具体的类型是text_note
+                这个类型是自定义的，URI的数据类型是通过provider的getType（URL uri）获得的
+                -->
+                <data android:mimeType="vnd.android.cursor.item/call_note" />
+                <!--
+                URI的数据是单条的，类型是call_note
+                -->
+            </intent-filter>
+
+            <intent-filter>
+                <action android:name="android.intent.action.INSERT_OR_EDIT" />
+                <!--
+                指定了该activity能响应的操作是 添加编辑联系人
+                -->
+                <category android:name="android.intent.category.DEFAULT" />
+                <!--
+                指定该intent的类别，可以是隐式
+                -->
+                <data android:mimeType="vnd.android.cursor.item/text_note" />
+                <!--
+                指定了该intent携带的数据的类型，数据是单条的，类型为text_note
+                -->
+                <data android:mimeType="vnd.android.cursor.item/call_note" />
+                <!--
+                指定携带的数据类型，数据是单条的，类型为call_note
+                -->
+            </intent-filter>
+
+            <intent-filter>
+                <action android:name="android.intent.action.SEARCH" />
+                <!--
+                指定activity能响应的intent的动作是搜索，即能开始搜索操作
+                -->
+                <category android:name="android.intent.category.DEFAULT" />
+                <!--
+                指定该intent为默认类别,可以是隐式intent
+                -->
+            </intent-filter>
+
+            <meta-data
+                android:name="android.app.searchable"
+                android:resource="@xml/searchable" />
+            <!--
+            1、meta-data元素 向父组件提供任一数据项的名值对（数据名称 对应值）
+            2、android:name="android.app.searchable" 指定该元素名称
+            3、android:resource  对资源的引用，资源的ID为该名值对的值
+            4、如为android:value   也是对资源的引用，资源包含的值为该名值对的值
+            -->
+        </activity>
+
+        <provider
+            android:name="net.micode.notes.data.NotesProvider"
+            android:authorities="micode_notes"
+            android:multiprocess="true" />
+        <!--
+        1、provider元素 声明了一个content provider组件，即一个ContentProvider的子类，是用来向外界提供可访问内容的
+        2、该组件的名字为net.micode.notes.data.NotesProvider
+        3、android:authorities属性  是指定提供该内容的授权方，用来标识提供的数据的，至少一个，多个则分号分隔
+        4、android:multiprocess属性   指定了若应用在多个进程间运行时，是否每个进程都有一个content provider实例，true则是
+        -->
+
+        <receiver
+            android:name=".widget.NoteWidgetProvider_2x"
+            android:label="@string/app_widget2x2" >
+            <!--
+            1、receiver元素  声明了一个广播接受器，即BroadcastReceiver的子类，能接受来着系统，其他应用，自己应用的intent对象，
+            即使其他组件未运行
+            2、该组件名称为 net.micode.notes.widget.NoteWidgetProvider_2x
+            3、标签 对字符串资源的引用 @string/app_widget2x2
+            -->
+            <intent-filter>
+                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
+                <!--
+                指定该receiver能响应的intent的动作为   应用挂件更新
+                -->
+                <action android:name="android.appwidget.action.APPWIDGET_DELETED" />
+                <!--
+                指定响应intent的动作为   应用挂件删除
+                -->
+                <action android:name="android.intent.action.PRIVACY_MODE_CHANGED" />
+                <!--
+                指定响应的intent的动作为    私人模式变更
+                -->
+            </intent-filter>
+
+            <meta-data
+                android:name="android.appwidget.provider"
+                android:resource="@xml/widget_2x_info" />
+            <!--
+            向该父组件 receiver  提供一个数据项的名值对，名为 android.appwidget.provider，值为 资源@xml/widget_2x_info的id
+            -->
+        </receiver>
+        <receiver
+            android:name=".widget.NoteWidgetProvider_4x"
+            android:label="@string/app_widget4x4" >
+            <!--
+            声明了一个完全限定类名为net.micode.notes.widget.NoteWidgetProvider_4x的广播接收器子类，标签为对@string/app_widget4x4
+            的引用
+            -->
+            <intent-filter>
+                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
+                <action android:name="android.appwidget.action.APPWIDGET_DELETED" />
+                <action android:name="android.intent.action.PRIVACY_MODE_CHANGED" />
+                <!--
+                指定的响应动作  应用挂件更新，应用挂件删除，私人模式变更
+                -->
+            </intent-filter>
+
+            <meta-data
+                android:name="android.appwidget.provider"
+                android:resource="@xml/widget_4x_info" />
+            <!--
+            向该父组件提供一个数据项的名值对
+            -->
+        </receiver>
+
+        <receiver android:name=".ui.AlarmInitReceiver" >
+            <intent-filter>
+                <action android:name="android.intent.action.BOOT_COMPLETED" />
+            </intent-filter>
+            <!--
+            声明一个广播接收器组件，响应的intent的动作为  开机自启
+            -->
+        </receiver>
+
+        <receiver
+            android:name="net.micode.notes.ui.AlarmReceiver"
+            android:process=":remote" >
+            <!--
+            声明一个广播接收器组件，android:process=":remote"属性 指定该组件的进程名为:remote
+            -->
+        </receiver>
+
+        <activity
+            android:name=".ui.AlarmAlertActivity"
+            android:label="@string/app_name"
+            android:launchMode="singleInstance"
+            android:theme="@android:style/Theme.Holo.Wallpaper.NoTitleBar" >
+            <!--
+            声明了一个界面，android:launchMode属性 指定了该activity的启动模式为singleInstance，即为该activity创建一个单独的任务栈
+            且只能有一个该activity，其他activity不能进入，界面主题  @android:style/Theme.Holo.Wallpaper.NoTitleBar的引用
+             -->
+        </activity>
+
+        <activity
+            android:name="net.micode.notes.ui.NotesPreferenceActivity"
+            android:label="@string/preferences_title"
+            android:launchMode="singleTop"
+            android:theme="@android:style/Theme.Holo.Light" >
+            <!--
+            声明了一个界面，启动模式singleTop，主题@android:style/Theme.Holo.Light的引用
+            -->
+        </activity>
+
+        <service
+            android:name="net.micode.notes.gtask.remote.GTaskSyncService"
+            android:exported="false" >
+            <!--
+            1、声明了一个服务组件，Service的子类，完全限定类名为net.micode.notes.gtask.remote.GTaskSyncService
+            2、android:exported属性  指定了该组件是否能被其他应用所访问，交互
+            -->
+        </service>
+
+        <meta-data
+            android:name="android.app.default_searchable"
+            android:value=".ui.NoteEditActivity" />
+        <!--
+        向父组件 application提供了一个数据项的名值对，名为android.app.default_searchable，值为net.micode.notes.ui.NoteEditActivity
+        类包含的值
+        -->
+    </application>
+</manifest>

other/07_211440108向金成_代码标注/color/primary_text_dark.xml

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!-- Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+  <!--
+  该XML文件是应用的颜色资源文件，能为VIEW组件中的处于不同状态的组件提供显示的颜色（如点击、不点击等等状态下，VIEW组件显示的颜色）
+  以selector为根元素，必须有命名空间，子元素为item 用于定义不同状态下，应该显示的颜色，状态属性定义状态，颜色属性定义颜色
+  -->
+  <item android:state_pressed="true" android:color="#88555555" />
+  <!--
+  1、android:state_pressed属性 定义了该状态为按下状态,属性值为true则指定了应在按下状态会显示该颜色，为false则指定了在未按下状态显示该颜色
+  2、android:color属性 定义了该状态下应该显示的颜色,属性值指定了什么颜色，以#开头的16进制颜色
+  -->
+  <item android:state_selected="true" android:color="#ff999999" />
+  <!--
+  定义该状态为选中状态，属性值为true，则应在选中的状态下，显示该颜色
+  -->
+  <item android:color="#ff000000" />
+  <!--
+  默认颜色，默认颜色item元素必须在最后一个
+  -->
+</selector>

other/07_211440108向金成_代码标注/color/secondary_text_dark.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!-- Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+  <item android:color="#50000000" />
+  <!--
+  定义了默认颜色
+  -->
+</selector>

other/07_211440108向金成_代码标注/drawable/new_note.xml

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!-- Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <!--
+    drawable文件夹 为可绘制图形的资源，可以是直接的图片，九宫格等等，也可以是XML文件（对资源进行进一步的配置）
+    该XML文件为状态列表文件，是对一个对象的不同状态下显示的可绘制图形的定义，与color资源一样，selector为根元素，
+    子元素为item，不同状态下，显示的不同可绘制图形
+    -->
+    <item android:state_pressed="true"
+        android:drawable="@drawable/new_note_pressed" />
+    <!--
+    1、android:state_pressed定义了按下状态，属性值为true，则应当在按下状态下，显示当前定义的可绘制图形
+    2、android:drawable属性 定义了应显示的可绘制图形，是对可绘制图形的引用    new_note_pressed图形是在drawable-hdpi文件夹下，
+    该文件夹也是可绘制图形，但为高密度的图形，对其应用也是 @drawable/名字
+    -->
+    <item
+        android:drawable="@drawable/new_note_normal" />
+    <!--
+    定义了默认的可绘制图形
+    -->
+</selector>

other/07_211440108向金成_代码标注/layout/account_dialog_title.xml

@@ -0,0 +1,71 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!-- Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<LinearLayout xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="fill_parent"
+        android:layout_height="fill_parent"
+        android:orientation="vertical"
+        xmlns:android="http://schemas.android.com/apk/res/android">
+    <!--
+    1、layout文件是界面或控件的布局资源，布局资源是XML文件，根元素是ViewGroup（一个布局容器，包含多个View对象，如文本，按钮，或作为View
+    对象的子布局等等）或View，布局容器有多种类型，如线性布局相对布局等等
+    2、该布局XML文件的布局容器为线性布局，线性布局是水平或垂直的，方向由LinearLayout的android:orientation属性设置
+    3、android:layout_width属性  指定了布局的宽度  属性值可以是尺寸单位或关键字（match_parent 替代fill_parent  尺寸与父元素一样
+    warp_content   包装内容，尺寸大小适配内容大小 等等） 该元素尺寸是适配父元素
+    4.android:layout_height属性  指定的布局的高度
+    5、android:orientation属性  指定线性布局是水平还是垂直    vertical指定垂直
+    -->
+
+    <TextView
+        android:id="@+id/account_dialog_title"
+        style="?android:attr/textAppearanceMedium"
+        android:singleLine="true"
+        android:ellipsize="end"
+        android:gravity="center"
+        android:layout_marginTop="-2.7dip"
+        android:layout_marginBottom="-2.7dip"
+        android:layout_width="fill_parent"
+        android:layout_height="wrap_content"
+        tools:ignore="VisualLintBounds" />
+    <!--
+    1、TextView元素声明了一个向用户显示文本的view子类，不能被用户编辑，要编辑则为EditText
+    2、android:id属性  指定了该view对象资源的id，用于引用，属性值为 @+id/名字   +代表如果该id不在id文件里，则新建一个id
+    3、style属性 是对安卓预定义样式的引用，属性值为你要引用的样式，当前是文本外观中等
+    4、android:singleLine属性  指定了文本是否单行显示，已废弃，使用lines属性
+    5、android:ellipsize属性  指定了省略号在那个位置显示，ellipsize是拼写错误
+    6、android:gravity属性  指定了该控件里的元素的对齐方式，当前是横纵居中
+    7、android:layout_marginTop属性   指定了上外边距的大小，即与父组件上边界的距离，当前属性值为负数，则该view对象的上边距在父组件里，
+    有一部分重叠，用于遮盖
+    8、android:layout_marginBottom属性   指定了下外边距的大小，即与父组件下边界的距离，值为负，则与父组件有重叠
+    9、android:layout_width属性 当前指定该view的宽与父组件一样，android:layout_height属性  指定当前的高于内容相适配
+    -->
+
+    <TextView
+        android:id="@+id/account_dialog_subtitle"
+        android:layout_width="fill_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="5dip"
+        android:layout_marginBottom="1dip"
+        android:gravity="center"/>
+    <!--
+    1、声明了一个显示文本的view对象，id指定为account_dialog_subtitle，当id文件中没有时新建
+    2、指定宽与父组件一样，高于内容匹配
+    3、指定了上外边距为5dip，下外边距为1dip
+    4、指定了该控件里的内容的对齐方式为横纵居中
+    -->
+
+</LinearLayout>

other/07_211440108向金成_代码标注/layout/add_account_text.xml

@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!-- Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:minHeight="50dip"
+    android:gravity="center_vertical"
+    android:orientation="vertical">
+    <!--
+    1、声明了一个线性布局容器，宽度与父组件一样，高度与内容匹配，即能刚好包含内容
+    2、android:minHeight属性  指定了最小高度，当前值50dip
+    3、对齐方式  垂直居中
+    4、方向 垂直
+    -->
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:textAppearance="?android:attr/textAppearanceMedium"
+        android:text="@string/preferences_add_account" />
+    <!--
+    1、声明了一个显示文本view对象，高度和宽度与内容适配
+    2、android:layout_gravity属性  是指定了该控件整体与父组件的对齐方式，而不是内容  当前很横纵居中
+    3、android:textAppearance属性  指定了文本外观，当前是对于预定义样式的引用
+    4、android:text属性 指定该view对象显示的文本，字符串资源引用
+    -->
+</LinearLayout>

other/07_211440108向金成_代码标注/layout/datetime_picker.xml

@@ -0,0 +1,80 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="horizontal"
+    android:layout_gravity="center_horizontal"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content">
+    <!--
+    1、声明了一个线性布局，方向为水平，相对于父组件的对齐方式是  水平居中
+    2、指定了布局的宽高，尺寸都适配内容
+    -->
+
+    <NumberPicker
+        android:id="@+id/date"
+        android:layout_width="120dip"
+        android:layout_height="wrap_content"
+        android:focusable="true"
+        android:focusableInTouchMode="true"
+        />
+    <!--
+    1、NumberPicker为数值选择器，声明了一个数组选择器，id为date
+    2、指定了宽为恒定的大小120dip，高度是自适应的，适配内容
+    3、android:focusable属性  指定了该组件是否可以通过物理操作获取焦点即物理键盘，同一时间只能有一个控件能获得焦点，焦点控件能对消息进行响应处理，
+    当前为true，可以获得焦点
+    4、android:focusableInTouchMode属性  指定了该控件能否通过触摸方式获得焦点，当前真。
+    -->
+
+    <NumberPicker
+        android:id="@+id/hour"
+        android:layout_width="50dip"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="5dip"
+        android:focusable="true"
+        android:focusableInTouchMode="true"
+        /><!--
+        1、声明了一个数值选择器，id为hour
+        2、宽为50dip，高适配内容，左外边距5dip
+        3、focusable属性为真，则能通过物理操作方式，使该控件获得焦点
+        4、focusableInTouchMode属性为真  控件能通过触摸方式获得焦点
+        -->
+
+    <NumberPicker
+        android:id="@+id/minute"
+        android:layout_width="50dip"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="5dip"
+        android:focusable="true"
+        android:focusableInTouchMode="true"
+        /><!--
+        1、声明了一个数值选择器，id为minute
+        2、宽50dip，高适配内容，左外边距5dip
+        3、可以通过物理方式，触摸方式获得焦点
+        -->
+
+    <NumberPicker
+        android:id="@+id/amPm"
+        android:layout_width="50dip"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="5dip"
+        android:focusable="true"
+        android:focusableInTouchMode="true"
+        /><!--
+        1、声明了一个数值选择器，id为amPm
+        2、宽50dip，高适配内容，左外边距5dip
+        3、可以通过物理方式，触摸方式获得焦点
+        -->
+</LinearLayout>

other/07_211440108向金成_代码标注/layout/dialog_edit_text.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!-- Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<EditText
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/et_foler_name"
+    android:layout_width="fill_parent"
+    android:hint="@string/hint_foler_name"
+    android:layout_height="fill_parent" />
+<!--
+1、view对象为布局xml文件的根元素，声明了一个可以供用户编辑的文本，id为et_foler_name
+2、宽、高都与父布局一样
+3、android:hint属性  指定了提示，当前是引用了一个字符串资源，可以直接输入字符串
+-->

other/07_211440108向金成_代码标注/layout/folder_list_item.xml

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!-- Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:minHeight="50dip" ><!--
+    1、声明了一个线性布局，默认水平布局
+    2、宽高都与父布局一样
+    3、指定了内部元素的最小高度为50dip
+    -->
+
+    <TextView
+        android:id="@+id/tv_folder_name"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:gravity="center"
+        android:textAppearance="@style/TextAppearancePrimaryItem" /><!--
+        1、声明了一个显示文本的view对象，id为tv_folder_name
+        2、宽高都与父组件一样
+        3、内容对齐方式为横纵居中
+        4、文本外观是对样式资源的引用
+        -->
+</LinearLayout>

other/07_211440108向金成_代码标注/ui/AlarmAlertActivity.java

@@ -0,0 +1,238 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.app.Activity;/*
+导入android包下的app子包里的Activity类，该类是activity组件的父类
+*/
+import android.app.AlertDialog;/*
+导入android包下的app子包里的AlertDialog类，该类是实现界面警告对话框（提示框）的
+*/
+import android.content.Context;/*
+导入android包下的content子包里的Context类，该类为抽象类，是所有组件的父类，一个实例组件即一个context对象
+*/
+import android.content.DialogInterface;/*
+导入android包下的content子包里的DialogInterface接口，是Dialog的接口
+*/
+import android.content.DialogInterface.OnClickListener;/*
+导入android包下的content子包里的DialogInterface接口的子接口OnClickListener，该接口是用于监听用户点击事件的
+*/
+import android.content.DialogInterface.OnDismissListener;/*
+导入android包下的content子包里的DialogInterface接口的子接口OnDismissListener，该接口是监听用户取消对话框事件的
+*/
+import android.content.Intent;/*
+导入Intent类，该类是intent对象的父类
+*/
+import android.media.AudioManager;/*
+导入android包里的子包media里的AudioManager类，该类是手机的音频管理器，可以控制手机的声音、震动
+*/
+import android.media.MediaPlayer;/*
+导入多媒体包里的多媒体播放器类MediaPlayer，用于播放音频、视频等
+*/
+import android.media.RingtoneManager;/*
+导入多媒体包里的RingtoneManager类，该类是铃声管理器
+*/
+import android.net.Uri;/*
+导入net包里的Uri抽象类，uri可以代表任何要操作的资源数据
+*/
+import android.os.Bundle;/*
+导入os包里的Bundle类，该类用于在activity类之间通过intent传递数据，待传递的数据以键值对形式组合包含于bundle对象，bundle对象又包含
+于intent对象里
+*/
+import android.os.PowerManager;/*
+导入os包里的PowerManager类，该类是电源管理器
+*/
+import android.provider.Settings;/*
+导入Settings类，该类提供系统的设置等等
+*/
+import android.view.Window;/*
+导入Window类，该类是窗口，是view树的载体，是view的管理者
+*/
+import android.view.WindowManager;/*
+导入该接口，该接口是窗口管理器
+*/
+
+import net.micode.notes.R;/*
+导入软件包的R类，该类是自动生成的，包含应用的资源id，与资源引用有关
+*/
+import net.micode.notes.data.Notes;/*
+导入net.micode.notes包里的子包data里的Notes类
+*/
+import net.micode.notes.tool.DataUtils;/*
+导入net.micode.notes包里的子包tool里的DataUtils类
+*/
+
+import java.io.IOException;/*
+导入java io包的IOException类，输入输出检查异常类
+*/
+
+
+public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener {
+    /* 该类是activity类，继承自Activity父类，实现可视化界面，且实现了OnClickListener, OnDismissListener接口，
+    可以监听用户点击，取消事件*/
+    private long mNoteId; //便签id变量
+    private String mSnippet;//字符串变量
+    private static final int SNIPPET_PREW_MAX_LEN = 60;//静态不可修改的整形变量
+    MediaPlayer mPlayer;//定义了一个MediaPlaye变量
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {/*
+        onCreate（）方法是对父类的方法的重写，用于初始化activity对即界面，参数是bundle对象，传递数据的
+        */
+        super.onCreate(savedInstanceState);/*
+        调用父类方法，初始化界面，绘制初始界面的，必须调用
+        */
+        requestWindowFeature(Window.FEATURE_NO_TITLE);/*
+        该方法用于设置窗口的特征，当前参数的window类的变量，设置当前窗口无标题
+        */
+        final Window win = getWindow();/*
+        getWindow方法 获得当前界面的窗口对象，不可修改值
+        */
+        win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);/*
+        该方法用于向window对象增加flags，显示逻辑，flags是windowManager类里的内部类LayoutParams的变量。
+        当前逻辑是锁屏时显示
+        */
+
+        if (!isScreenOn()) {
+            win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
+                    | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON
+                    | WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON
+                    | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR);
+            /* 屏幕不亮时，增加新的flags，显示逻辑*/
+        }
+
+        Intent intent = getIntent();/*
+        通过getIntent方法  获得当前界面接受到的intent对象
+        */
+
+        try {
+            mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1));/*
+            getData（）方法是获得intent对象携带的数据的uri，getPathSegments()方法是将uri的第一个/的右部分转化为字符串类型的list，
+            该语句作用为将接受到的intent对象的便签id数据赋值到mNoteId变量
+            */
+            mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId);/*
+            调用DataUtils类里的getSnippetById方法，给mSnippet赋值，getContentResolver（）用于获得当前activity界面的内容
+            解析器contentResolver，用于对其他activity共享的内容进行解析，内容解析器有增删改查等方法，对数据操作
+            */
+            mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0,
+                    SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info)/*
+                    getResources()方法 获得Resources对象，用于引用资源，getString（资源id）方法  通过资源id引用字符串资源
+                    R.string.notelist_string_info 获得名为notelist_string_info的字符串的id
+                    */
+                    : mSnippet;
+        } catch (IllegalArgumentException e) {
+            e.printStackTrace();
+            return;
+        }
+
+        mPlayer = new MediaPlayer();//实例化MediaPlayer类
+        if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) {
+            /* 判断便签是否在便签数据库里，在则显示对话框，播放闹钟声音*/
+            showActionDialog();
+            playAlarmSound();
+        } else {
+            finish();//关闭该activity打开的一切资源，finish后调用onDestory（）销毁该activity
+        }
+    }
+
+    private boolean isScreenOn() {
+        PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);/*
+        getSystemService（）方法用于获得系统服务，比如当前是获得系统的电源管理器，通过context的字符串变量调用,再强制转化为owerManager
+        */
+        return pm.isScreenOn();//判断屏幕是否亮
+    }
+
+    private void playAlarmSound() {
+        Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM);/*
+        调用铃声管理器的getActualDefaultRingtoneUri方法，获得安卓默认的铃声资源URI
+        */
+
+        int silentModeStreams = Settings.System.getInt(getContentResolver(),
+                Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0);/*
+                getInt方法是获得系统设置中某些设置的值，比如当前是获得闹钟铃声音量的大小
+                */
+
+        if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) {
+            mPlayer.setAudioStreamType(silentModeStreams);/*
+            设置音量流类型
+            */
+        } else {
+            mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM);
+        }
+        try {
+            mPlayer.setDataSource(this, url);//设置播放的多媒体资源URI
+            mPlayer.prepare();//准备中
+            mPlayer.setLooping(true);//设置是否一直循环播放
+            mPlayer.start();//开始播放
+        } catch (IllegalArgumentException e) {
+            // TODO Auto-generated catch block
+            e.printStackTrace();
+        } catch (SecurityException e) {
+            // TODO Auto-generated catch block
+            e.printStackTrace();
+        } catch (IllegalStateException e) {
+            // TODO Auto-generated catch block
+            e.printStackTrace();
+        } catch (IOException e) {
+            // TODO Auto-generated catch block
+            e.printStackTrace();
+        }
+    }
+
+    private void showActionDialog() {
+        AlertDialog.Builder dialog = new AlertDialog.Builder(this);/*
+        AlertDialog类的构造方法受保护，只能通过内部类builder的构造方法来创建对话框
+        */
+        dialog.setTitle(R.string.app_name);//设置对话框标题
+        dialog.setMessage(mSnippet);//设置对话框内容
+        dialog.setPositiveButton(R.string.notealert_ok, this);//设置响应一般YES的按钮，按钮的标题为参数
+        if (isScreenOn()) {
+            dialog.setNegativeButton(R.string.notealert_enter, this);//屏幕亮，设置一般响应取消的按钮
+        }
+        dialog.show().setOnDismissListener(this);//显示对话框，并且设置一个监听用户取消对话框的监听器
+    }
+
+    public void onClick(DialogInterface dialog, int which) {/*
+        该方法用于处理用户点击
+        */
+        switch (which) {
+            case DialogInterface.BUTTON_NEGATIVE://如果用户点击negative按钮
+                Intent intent = new Intent(this, NoteEditActivity.class);/*
+                创建一个显示intent，指定接受的组件为NoteEditActivity类
+                */
+                intent.setAction(Intent.ACTION_VIEW);//设置intent的action，接受的activity显示数据
+                intent.putExtra(Intent.EXTRA_UID, mNoteId);//设置activity响应操作所需的额外的数据，是键值对
+                startActivity(intent);//将intent对象传递给NoteEditActivity类
+                break;
+            default:
+                break;
+        }
+    }
+
+    public void onDismiss(DialogInterface dialog) {
+        stopAlarmSound();
+        finish();
+    }/*响应用户取消，停止播放闹钟，结束该activity调用的一切资源*/
+
+    private void stopAlarmSound() {
+        if (mPlayer != null) {
+            mPlayer.stop();
+            mPlayer.release();
+            mPlayer = null;
+        }
+    }/* 非空，停止播放，释放资源，置空*/
+}

other/07_211440108向金成_代码标注/ui/AlarmInitReceiver.java

@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.app.AlarmManager;
+import android.app.PendingIntent;
+import android.content.BroadcastReceiver;
+import android.content.ContentUris;
+import android.content.Context;
+import android.content.Intent;
+import android.database.Cursor;
+
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.NoteColumns;
+
+
+public class AlarmInitReceiver extends BroadcastReceiver {
+
+    private static final String [] PROJECTION = new String [] {
+        NoteColumns.ID,
+        NoteColumns.ALERTED_DATE
+    };//定义了一个字符串数组
+
+    private static final int COLUMN_ID                = 0;//一栏的id
+    private static final int COLUMN_ALERTED_DATE      = 1;//一栏的闹钟响的日期
+
+    @Override
+    public void onReceive(Context context, Intent intent) {/*
+        每个receiver类都必须重写父类Receiver的onReceive方法，对接收到的广播进行处理
+         */
+        long currentDate = System.currentTimeMillis();//获取当前时间，毫秒为单位
+        Cursor c = context.getContentResolver().query(Notes.CONTENT_NOTE_URI,//URI代表数据库的中的某个表
+                PROJECTION,//要查询的列
+                NoteColumns.ALERTED_DATE + ">? AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE,/*
+                where 后面的条件，？为占位符，selectionArgs参数替代占位符
+                */
+                new String[] { String.valueOf(currentDate) },//替代占位符的
+                null);//order by  排序，当前null默认升序
+        /* 内容解析器提供的query（查询）方法，会将参数转化为一条select语句，用于在数据库中进行操作，返回的结果，相当于游标的缓冲区，
+        cursor为指向每行的游标指针
+        */
+
+        if (c != null) {//查询结果成功
+            if (c.moveToFirst()) {//移动到第一行
+                do {
+                    long alertDate = c.getLong(COLUMN_ALERTED_DATE);//将COLUMN_ALERTED_DATE列的值转化为long赋值给变量
+                    Intent sender = new Intent(context, AlarmReceiver.class);//向AlarmReceiver类传递intent对象
+                    sender.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, c.getLong(COLUMN_ID)));/*
+                    设置sender对象的data的URI，向给定的URI路径末尾添加一个id,有id后的URI代表那个id指向的资源
+                    */
+                    PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, sender, 0);/*
+                    调用PendingIntent.getBroadcast方法，以获得一个PendingIntent对象，激发该对象时，该对象会启动一个它能启动组件，
+                    只能是activity，service，broadcast这3个组件，当前是创建了一个激发时能启动broadcast的对象，广播传递的intent
+                    是sender
+                    */
+                    AlarmManager alermManager = (AlarmManager) context
+                            .getSystemService(Context.ALARM_SERVICE);//通过系统服务来获得当前的闹钟管理器
+                    alermManager.set(AlarmManager.RTC_WAKEUP, alertDate, pendingIntent);/*
+                    设置闹钟，闹钟类型是使用现实时间的闹钟，会唤醒系统进行提示 响，设置了响的时间，响时会传递的消息
+                    */
+                } while (c.moveToNext());//c指向下一行
+            }
+            c.close();//关闭游标
+        }
+    }
+}

other/07_211440108向金成_代码标注/ui/AlarmReceiver.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+
+public class AlarmReceiver extends BroadcastReceiver {
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        intent.setClass(context, AlarmAlertActivity.class);//将接受到的intent对象传给AlarmAlertActivity类
+        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);/*
+        向intent添加flags以控制组件更加复杂的行为，当前是控制AlarmAlertActivity类新建一个任务栈来启动activity
+        */
+        context.startActivity(intent);//启动activity，传递intent
+    }
+}

other/07_211440108向金成_代码标注/ui/DateTimePicker.java

@@ -0,0 +1,500 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import java.text.DateFormatSymbols;
+import java.util.Calendar;
+
+import net.micode.notes.R;
+
+
+import android.content.Context;
+import android.text.format.DateFormat;
+import android.view.View;
+import android.widget.FrameLayout;
+import android.widget.NumberPicker;
+
+public class DateTimePicker extends FrameLayout {/*
+    该类用于用户选择闹钟响铃时间，继承自FrameLayout类，帧布局，任何view对象，都对齐左上角
+    */
+
+    private static final boolean DEFAULT_ENABLE_STATE = true;
+
+    private static final int HOURS_IN_HALF_DAY = 12;
+    private static final int HOURS_IN_ALL_DAY = 24;
+    private static final int DAYS_IN_ALL_WEEK = 7;
+    private static final int DATE_SPINNER_MIN_VAL = 0;
+    private static final int DATE_SPINNER_MAX_VAL = DAYS_IN_ALL_WEEK - 1;
+    private static final int HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW = 0;
+    private static final int HOUR_SPINNER_MAX_VAL_24_HOUR_VIEW = 23;
+    private static final int HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW = 1;
+    private static final int HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW = 12;
+    private static final int MINUT_SPINNER_MIN_VAL = 0;
+    private static final int MINUT_SPINNER_MAX_VAL = 59;
+    private static final int AMPM_SPINNER_MIN_VAL = 0;
+    private static final int AMPM_SPINNER_MAX_VAL = 1;
+
+    private final NumberPicker mDateSpinner;//选择日期
+    private final NumberPicker mHourSpinner;//选择时间
+    private final NumberPicker mMinuteSpinner;//选择分钟
+    private final NumberPicker mAmPmSpinner;//选择上下午
+    /*
+    定义了一个NumberPicker类变量，即声明了4个数字选择器控件
+    */
+    private Calendar mDate;//定义一个Calendar类对象，用于获取时间
+
+    private String[] mDateDisplayValues = new String[DAYS_IN_ALL_WEEK];//创建一个字符串数组显示日期的值，DAYS_IN_ALL_WEEK为值
+
+    private boolean mIsAm;//定义一个布尔类型变量，判断是否是上午
+
+    private boolean mIs24HourView;
+
+    private boolean mIsEnabled = DEFAULT_ENABLE_STATE;//判断是否能够使用
+
+    private boolean mInitialising;
+
+    private OnDateTimeChangedListener mOnDateTimeChangedListener;
+
+    /* 实例化OnValueChangeListener，用于监听数组选择器值的改变,当前是创建一个监听日期变化的监听器 */
+    private NumberPicker.OnValueChangeListener mOnDateChangedListener = new NumberPicker.OnValueChangeListener() {
+        @Override
+        //实例化时重写接口方法，该方法来响应值变化
+        public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
+            mDate.add(Calendar.DAY_OF_YEAR, newVal - oldVal);//mDate 日历添加日期
+            updateDateControl();//更新
+            onDateTimeChanged();//同步
+        }
+    };
+
+    /* 创建一个监听小时变化的监听器*/
+    private NumberPicker.OnValueChangeListener mOnHourChangedListener = new NumberPicker.OnValueChangeListener() {
+        @Override
+        public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
+            boolean isDateChanged = false;
+            Calendar cal = Calendar.getInstance();//实例化一个calendar，
+            if (!mIs24HourView) {//不是24h制时间
+                if (!mIsAm && oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY) {
+                    cal.setTimeInMillis(mDate.getTimeInMillis());//获取ms单位的时间，并设置cal的时间
+                    cal.add(Calendar.DAY_OF_YEAR, 1);//增加日期
+                    isDateChanged = true;//下午11h、12h交替更改
+                } else if (mIsAm && oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) {
+                    cal.setTimeInMillis(mDate.getTimeInMillis());
+                    cal.add(Calendar.DAY_OF_YEAR, -1);
+                    isDateChanged = true;//上午12点，11点交替的更改
+                }
+                if (oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY ||
+                        oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) {
+                    mIsAm = !mIsAm;//更改Am，am pm
+                    updateAmPmControl();
+                }
+            } else {//是24h时间
+                if (oldVal == HOURS_IN_ALL_DAY - 1 && newVal == 0) {
+                    cal.setTimeInMillis(mDate.getTimeInMillis());
+                    cal.add(Calendar.DAY_OF_YEAR, 1);
+                    isDateChanged = true;//23点到0点的交替时，更改
+                } else if (oldVal == 0 && newVal == HOURS_IN_ALL_DAY - 1) {
+                    cal.setTimeInMillis(mDate.getTimeInMillis());
+                    cal.add(Calendar.DAY_OF_YEAR, -1);
+                    isDateChanged = true;//0点到23点交替时更改
+                }
+            }
+            int newHour = mHourSpinner.getValue() % HOURS_IN_HALF_DAY + (mIsAm ? 0 : HOURS_IN_HALF_DAY);/*
+            更改hour，当am变到pm时
+            */
+            mDate.set(Calendar.HOUR_OF_DAY, newHour);//设置日期
+            onDateTimeChanged();//同步
+            if (isDateChanged) {//日期变化后，更改年、月。日
+                setCurrentYear(cal.get(Calendar.YEAR));
+                setCurrentMonth(cal.get(Calendar.MONTH));
+                setCurrentDay(cal.get(Calendar.DAY_OF_MONTH));
+            }
+        }
+    };
+
+    /*  创建一个监听min改变的监听器*/
+    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();//获得数组选择器能选择的最大、最小值
+            int offset = 0;//标志是否hour改变
+            if (oldVal == maxValue && newVal == minValue) {
+                offset += 1;//hour+1
+            } else if (oldVal == minValue && newVal == maxValue) {
+                offset -= 1;//hour-1
+            }
+            if (offset != 0) {//hour改变
+                mDate.add(Calendar.HOUR_OF_DAY, offset);//新增一个日期
+                mHourSpinner.setValue(getCurrentHour());//获得当前hour值，设置mHourSpinner选择器的值
+                updateDateControl();
+                int newHour = getCurrentHourOfDay();
+                if (newHour >= HOURS_IN_HALF_DAY) {//更改am、pm
+                    mIsAm = false;
+                    updateAmPmControl();
+                } else {
+                    mIsAm = true;
+                    updateAmPmControl();
+                }
+            }
+            mDate.set(Calendar.MINUTE, newVal);//修改date值
+            onDateTimeChanged();
+        }
+    };
+
+    /*  监听am、pm改变*/
+    private NumberPicker.OnValueChangeListener mOnAmPmChangedListener = new NumberPicker.OnValueChangeListener() {
+        @Override
+        public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
+            mIsAm = !mIsAm;
+            if (mIsAm) {
+                mDate.add(Calendar.HOUR_OF_DAY, -HOURS_IN_HALF_DAY);
+            } else {
+                mDate.add(Calendar.HOUR_OF_DAY, HOURS_IN_HALF_DAY);
+            }
+            updateAmPmControl();
+            onDateTimeChanged();
+        }
+    };
+
+    //监听data改变的监听器接口
+    public interface OnDateTimeChangedListener {
+        void onDateTimeChanged(DateTimePicker view, int year, int month,
+                int dayOfMonth, int hourOfDay, int minute);
+    }
+
+    public DateTimePicker(Context context) {
+        this(context, System.currentTimeMillis());
+    }//通过当前时间构造
+
+    public DateTimePicker(Context context, long date) {
+        this(context, date, DateFormat.is24HourFormat(context));//是24小时制的选择器
+    }
+
+    public DateTimePicker(Context context, long date, boolean is24HourView) {
+        super(context);
+        mDate = Calendar.getInstance();//实例化calendar
+        mInitialising = true;//标志正在初始化
+        mIsAm = getCurrentHourOfDay() >= HOURS_IN_HALF_DAY;
+        inflate(context, R.layout.datetime_picker, this);//将datetime_picker XML布局文件转化为view对象
+
+        mDateSpinner = (NumberPicker) findViewById(R.id.date);//将id为date的view实例化
+        mDateSpinner.setMinValue(DATE_SPINNER_MIN_VAL);//设置可以选择的最小值
+        mDateSpinner.setMaxValue(DATE_SPINNER_MAX_VAL);//设置可以选择的最大值
+        mDateSpinner.setOnValueChangedListener(mOnDateChangedListener);//设置监听选择的值改变的监听器
+
+        mHourSpinner = (NumberPicker) findViewById(R.id.hour);//实例化用于选择hour的选择器
+        mHourSpinner.setOnValueChangedListener(mOnHourChangedListener);
+        mMinuteSpinner =  (NumberPicker) findViewById(R.id.minute);
+        mMinuteSpinner.setMinValue(MINUT_SPINNER_MIN_VAL);
+        mMinuteSpinner.setMaxValue(MINUT_SPINNER_MAX_VAL);
+        mMinuteSpinner.setOnLongPressUpdateInterval(100);//设置长按改变数值增加的量
+        mMinuteSpinner.setOnValueChangedListener(mOnMinuteChangedListener);
+
+        String[] stringsForAmPm = new DateFormatSymbols().getAmPmStrings();//返回表示上午下午格式的字符串
+        mAmPmSpinner = (NumberPicker) findViewById(R.id.amPm);//实例化选择ampm的选择器
+        mAmPmSpinner.setMinValue(AMPM_SPINNER_MIN_VAL);
+        mAmPmSpinner.setMaxValue(AMPM_SPINNER_MAX_VAL);
+        mAmPmSpinner.setDisplayedValues(stringsForAmPm);//设置显示的文本
+        mAmPmSpinner.setOnValueChangedListener(mOnAmPmChangedListener);
+
+        // update controls to initial state
+        updateDateControl();
+        updateHourControl();
+        updateAmPmControl();
+
+        set24HourView(is24HourView);
+
+        // set to current time
+        setCurrentDate(date);
+
+        setEnabled(isEnabled());
+
+        // set the content descriptions
+        mInitialising = false;
+    }
+
+    @Override//设置能否使用
+    public void setEnabled(boolean enabled) {
+        if (mIsEnabled == enabled) {
+            return;
+        }
+        super.setEnabled(enabled);
+        mDateSpinner.setEnabled(enabled);
+        mMinuteSpinner.setEnabled(enabled);
+        mHourSpinner.setEnabled(enabled);
+        mAmPmSpinner.setEnabled(enabled);
+        mIsEnabled = enabled;
+    }
+
+    @Override
+    public boolean isEnabled() {
+        return mIsEnabled;
+    }
+
+    /**
+     * Get the current date in millis
+     *
+     * @return the current date in millis
+     */
+    public long getCurrentDateInTimeMillis() {
+        return mDate.getTimeInMillis();
+    }
+
+    /**
+     * Set the current date
+     *
+     * @param date The current date in millis
+     */
+    public void setCurrentDate(long date) {
+        Calendar cal = Calendar.getInstance();
+        cal.setTimeInMillis(date);
+        setCurrentDate(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH),
+                cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE));
+    }
+
+    /**
+     * Set the current date
+     *
+     * @param year The current year
+     * @param month The current month
+     * @param dayOfMonth The current dayOfMonth
+     * @param hourOfDay The current hourOfDay
+     * @param minute The current minute
+     */
+    public void setCurrentDate(int year, int month,
+            int dayOfMonth, int hourOfDay, int minute) {
+        setCurrentYear(year);
+        setCurrentMonth(month);
+        setCurrentDay(dayOfMonth);
+        setCurrentHour(hourOfDay);
+        setCurrentMinute(minute);
+    }
+
+    /**
+     * Get current year
+     *
+     * @return The current year
+     */
+    public int getCurrentYear() {
+        return mDate.get(Calendar.YEAR);
+    }
+
+    /**
+     * Set current year
+     *
+     * @param year The current year
+     */
+    public void setCurrentYear(int year) {
+        if (!mInitialising && year == getCurrentYear()) {
+            return;
+        }
+        mDate.set(Calendar.YEAR, year);
+        updateDateControl();
+        onDateTimeChanged();
+    }
+
+    /**
+     * Get current month in the year
+     *
+     * @return The current month in the year
+     */
+    public int getCurrentMonth() {
+        return mDate.get(Calendar.MONTH);
+    }
+
+    /**
+     * Set current month in the year
+     *
+     * @param month The month in the year
+     */
+    public void setCurrentMonth(int month) {
+        if (!mInitialising && month == getCurrentMonth()) {
+            return;
+        }
+        mDate.set(Calendar.MONTH, month);
+        updateDateControl();
+        onDateTimeChanged();
+    }
+
+    /**
+     * Get current day of the month
+     *
+     * @return The day of the month
+     */
+    public int getCurrentDay() {
+        return mDate.get(Calendar.DAY_OF_MONTH);
+    }
+
+    /**
+     * Set current day of the month
+     *
+     * @param dayOfMonth The day of the month
+     */
+    public void setCurrentDay(int dayOfMonth) {
+        if (!mInitialising && dayOfMonth == getCurrentDay()) {
+            return;
+        }
+        mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth);
+        updateDateControl();
+        onDateTimeChanged();
+    }
+
+    /**
+     * Get current hour in 24 hour mode, in the range (0~23)
+     * @return The current hour in 24 hour mode
+     */
+    public int getCurrentHourOfDay() {
+        return mDate.get(Calendar.HOUR_OF_DAY);
+    }
+
+    private int getCurrentHour() {
+        if (mIs24HourView){
+            return getCurrentHourOfDay();
+        } else {
+            int hour = getCurrentHourOfDay();
+            if (hour > HOURS_IN_HALF_DAY) {
+                return hour - HOURS_IN_HALF_DAY;
+            } else {
+                return hour == 0 ? HOURS_IN_HALF_DAY : hour;
+            }
+        }
+    }
+
+    /**
+     * Set current hour in 24 hour mode, in the range (0~23)
+     *
+     * @param hourOfDay
+     */
+    public void setCurrentHour(int hourOfDay) {
+        if (!mInitialising && hourOfDay == getCurrentHourOfDay()) {
+            return;
+        }
+        mDate.set(Calendar.HOUR_OF_DAY, hourOfDay);
+        if (!mIs24HourView) {
+            if (hourOfDay >= HOURS_IN_HALF_DAY) {
+                mIsAm = false;
+                if (hourOfDay > HOURS_IN_HALF_DAY) {
+                    hourOfDay -= HOURS_IN_HALF_DAY;
+                }
+            } else {
+                mIsAm = true;
+                if (hourOfDay == 0) {
+                    hourOfDay = HOURS_IN_HALF_DAY;
+                }
+            }
+            updateAmPmControl();
+        }
+        mHourSpinner.setValue(hourOfDay);
+        onDateTimeChanged();
+    }
+
+    /**
+     * Get currentMinute
+     *
+     * @return The Current Minute
+     */
+    public int getCurrentMinute() {
+        return mDate.get(Calendar.MINUTE);
+    }
+
+    /**
+     * Set current minute
+     */
+    public void setCurrentMinute(int minute) {
+        if (!mInitialising && minute == getCurrentMinute()) {
+            return;
+        }
+        mMinuteSpinner.setValue(minute);
+        mDate.set(Calendar.MINUTE, minute);
+        onDateTimeChanged();
+    }
+
+    /**
+     * @return true if this is in 24 hour view else false.
+     */
+    public boolean is24HourView () {
+        return mIs24HourView;
+    }
+
+    /**
+     * Set whether in 24 hour or AM/PM mode.
+     *
+     * @param is24HourView True for 24 hour mode. False for AM/PM mode.
+     */
+    public void set24HourView(boolean is24HourView) {
+        if (mIs24HourView == is24HourView) {
+            return;
+        }
+        mIs24HourView = is24HourView;
+        mAmPmSpinner.setVisibility(is24HourView ? View.GONE : View.VISIBLE);
+        int hour = getCurrentHourOfDay();
+        updateHourControl();
+        setCurrentHour(hour);
+        updateAmPmControl();
+    }
+
+    //以下都是控制日期，小时，ampm转化的
+    private void updateDateControl() {
+        Calendar cal = Calendar.getInstance();
+        cal.setTimeInMillis(mDate.getTimeInMillis());
+        cal.add(Calendar.DAY_OF_YEAR, -DAYS_IN_ALL_WEEK / 2 - 1);
+        mDateSpinner.setDisplayedValues(null);
+        for (int i = 0; i < DAYS_IN_ALL_WEEK; ++i) {
+            cal.add(Calendar.DAY_OF_YEAR, 1);
+            mDateDisplayValues[i] = (String) DateFormat.format("MM.dd EEEE", cal);
+        }
+        mDateSpinner.setDisplayedValues(mDateDisplayValues);
+        mDateSpinner.setValue(DAYS_IN_ALL_WEEK / 2);
+        mDateSpinner.invalidate();
+    }
+
+    private void updateAmPmControl() {
+        if (mIs24HourView) {
+            mAmPmSpinner.setVisibility(View.GONE);
+        } else {
+            int index = mIsAm ? Calendar.AM : Calendar.PM;
+            mAmPmSpinner.setValue(index);
+            mAmPmSpinner.setVisibility(View.VISIBLE);
+        }
+    }
+
+    private void updateHourControl() {
+        if (mIs24HourView) {
+            mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW);
+            mHourSpinner.setMaxValue(HOUR_SPINNER_MAX_VAL_24_HOUR_VIEW);
+        } else {
+            mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW);
+            mHourSpinner.setMaxValue(HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW);
+        }
+    }
+
+    /**
+     * Set the callback that indicates the 'Set' button has been pressed.
+     * @param callback the callback, if null will do nothing
+     */
+    public void setOnDateTimeChangedListener(OnDateTimeChangedListener callback) {
+        mOnDateTimeChangedListener = callback;
+    }
+
+    //响应日期改变
+    private void onDateTimeChanged() {
+        if (mOnDateTimeChangedListener != null) {
+            mOnDateTimeChangedListener.onDateTimeChanged(this, getCurrentYear(),
+                    getCurrentMonth(), getCurrentDay(), getCurrentHourOfDay(), getCurrentMinute());
+        }
+    }
+}

other/07_211440108向金成_代码标注/ui/DateTimePickerDialog.java

@@ -0,0 +1,92 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import java.util.Calendar;
+
+import net.micode.notes.R;
+import net.micode.notes.ui.DateTimePicker;
+import net.micode.notes.ui.DateTimePicker.OnDateTimeChangedListener;
+
+import android.app.AlertDialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.DialogInterface.OnClickListener;
+import android.text.format.DateFormat;
+import android.text.format.DateUtils;
+
+public class DateTimePickerDialog extends AlertDialog implements OnClickListener {
+
+    private Calendar mDate = Calendar.getInstance();//calendar变量便于时间操作
+    private boolean mIs24HourView;
+    private OnDateTimeSetListener mOnDateTimeSetListener;//监听用户设置时间
+    private DateTimePicker mDateTimePicker;//view对象，选择器
+
+    public interface OnDateTimeSetListener {
+        void OnDateTimeSet(AlertDialog dialog, long date);
+    }
+
+    public DateTimePickerDialog(Context context, long date) {
+        super(context);//实例化
+        mDateTimePicker = new DateTimePicker(context);
+        setView(mDateTimePicker);//添加视图
+        mDateTimePicker.setOnDateTimeChangedListener(new OnDateTimeChangedListener() {
+            public void onDateTimeChanged(DateTimePicker view, int year, int month,
+                    int dayOfMonth, int hourOfDay, int minute) {
+                mDate.set(Calendar.YEAR, year);
+                mDate.set(Calendar.MONTH, month);
+                mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth);
+                mDate.set(Calendar.HOUR_OF_DAY, hourOfDay);
+                mDate.set(Calendar.MINUTE, minute);//设置当前时间
+                updateTitle(mDate.getTimeInMillis());
+            }
+        });//向选择时间的选择器设置监听时间改变的监听器
+        mDate.setTimeInMillis(date);//设置时间毫秒单位
+        mDate.set(Calendar.SECOND, 0);//秒数设置为0
+        mDateTimePicker.setCurrentDate(mDate.getTimeInMillis());//选择器设置当前时间
+        setButton(context.getString(R.string.datetime_dialog_ok), this);//设置按钮
+        setButton2(context.getString(R.string.datetime_dialog_cancel), (OnClickListener)null);//设置按钮
+        set24HourView(DateFormat.is24HourFormat(this.getContext()));//设置日期是24小时制
+        updateTitle(mDate.getTimeInMillis());//更新显示日期
+    }
+
+    public void set24HourView(boolean is24HourView) {
+        mIs24HourView = is24HourView;
+    }
+
+    public void setOnDateTimeSetListener(OnDateTimeSetListener callBack) {
+        mOnDateTimeSetListener = callBack;
+    }
+
+    //用于格式日期显示
+    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类日期格式工具类
+        setTitle(DateUtils.formatDateTime(this.getContext(), date, flag));
+    }
+
+    //响应用户点击设置按钮
+    public void onClick(DialogInterface arg0, int arg1) {
+        if (mOnDateTimeSetListener != null) {
+            mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis());
+        }
+    }
+
+}

other/07_211440108向金成_代码标注/ui/DropdownMenu.java

@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.content.Context;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.Button;
+import android.widget.PopupMenu;
+import android.widget.PopupMenu.OnMenuItemClickListener;
+
+import net.micode.notes.R;
+
+public class DropdownMenu {
+    private Button mButton;
+    private PopupMenu mPopupMenu;//下拉菜单
+    private Menu mMenu;
+
+    //响应用户下拉菜单
+    public DropdownMenu(Context context, Button button, int menuId) {
+        mButton = button;
+        mButton.setBackgroundResource(R.drawable.dropdown_icon);//设置背景
+        mPopupMenu = new PopupMenu(context, mButton);//mButton代表下拉菜单要通过点击mButton来打开
+        mMenu = mPopupMenu.getMenu();
+        mPopupMenu.getMenuInflater().inflate(menuId, mMenu);//获取布局文件
+        mButton.setOnClickListener(new OnClickListener() {
+            public void onClick(View v) {
+                mPopupMenu.show();
+            }
+        });//监听用户点击
+    }
+
+    //设置监听下拉菜单中选项被选中的监听器
+    public void setOnDropdownMenuItemClickListener(OnMenuItemClickListener listener) {
+        if (mPopupMenu != null) {
+            mPopupMenu.setOnMenuItemClickListener(listener);
+        }
+    }
+
+    //查找菜单中的项
+    public MenuItem findItem(int id) {
+        return mMenu.findItem(id);
+    }
+
+    //设置按钮的显示文本
+    public void setTitle(CharSequence title) {
+        mButton.setText(title);
+    }
+}

other/07_211440108向金成_代码标注/ui/FoldersListAdapter.java

@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.content.Context;
+import android.database.Cursor;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.CursorAdapter;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.NoteColumns;
+
+
+public class FoldersListAdapter extends CursorAdapter {
+    /* CursorAdapter类 是用于 cursor和listview的连接*/
+    public static final String [] PROJECTION = {
+        NoteColumns.ID,
+        NoteColumns.SNIPPET
+    };//要显示的数据库的列
+
+    public static final int ID_COLUMN   = 0;
+    public static final int NAME_COLUMN = 1;
+
+    public FoldersListAdapter(Context context, Cursor c) {
+        super(context, c);
+        // TODO Auto-generated constructor stub
+    }
+
+    @Override
+    public View newView(Context context, Cursor cursor, ViewGroup parent) {
+        return new FolderListItem(context);
+    }//在文件夹列表中创建一个新的项，即一个新的文件夹
+
+    @Override
+    //如果view是文件夹列表中的一个项，设置view的名字
+    public void bindView(View view, Context context, Cursor cursor) {
+        if (view instanceof FolderListItem) {
+            String folderName = (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context
+                    .getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN);//判断设置什么名字
+            ((FolderListItem) view).bind(folderName);
+        }
+    }
+
+    //获得文件夹名
+    public String getFolderName(Context context, int position) {
+        Cursor cursor = (Cursor) getItem(position);
+        return (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context
+                .getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN);
+    }
+
+    //创建一个类用于文件夹列表中的项
+    private class FolderListItem extends LinearLayout {
+        private TextView mName;
+
+        //绘制项
+        public FolderListItem(Context context) {
+            super(context);
+            inflate(context, R.layout.folder_list_item, this);//实例化布局文件
+            mName = (TextView) findViewById(R.id.tv_folder_name);//获得名字
+        }
+
+        //设置文本
+        public void bind(String name) {
+            mName.setText(name);
+        }
+    }
+
+}

other/07_211440108向金成_代码标注/ui/NoteEditActivity.java

@@ -0,0 +1,912 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.app.Activity;
+import android.app.AlarmManager;
+import android.app.AlertDialog;
+import android.app.PendingIntent;
+import android.app.SearchManager;
+import android.appwidget.AppWidgetManager;
+import android.content.ContentUris;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.graphics.Paint;
+import android.os.Bundle;
+import android.preference.PreferenceManager;
+import android.text.Spannable;
+import android.text.SpannableString;
+import android.text.TextUtils;
+import android.text.format.DateUtils;
+import android.text.style.BackgroundColorSpan;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.WindowManager;
+import android.widget.CheckBox;
+import android.widget.CompoundButton;
+import android.widget.CompoundButton.OnCheckedChangeListener;
+import android.widget.EditText;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.TextNote;
+import net.micode.notes.model.WorkingNote;
+import net.micode.notes.model.WorkingNote.NoteSettingChangedListener;
+import net.micode.notes.tool.DataUtils;
+import net.micode.notes.tool.ResourceParser;
+import net.micode.notes.tool.ResourceParser.TextAppearanceResources;
+import net.micode.notes.ui.DateTimePickerDialog.OnDateTimeSetListener;
+import net.micode.notes.ui.NoteEditText.OnTextViewChangeListener;
+import net.micode.notes.widget.NoteWidgetProvider_2x;
+import net.micode.notes.widget.NoteWidgetProvider_4x;
+
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+
+public class NoteEditActivity extends Activity implements OnClickListener,
+        NoteSettingChangedListener, OnTextViewChangeListener {
+    private class HeadViewHolder {
+        public TextView tvModified;
+
+        public ImageView ivAlertIcon;
+
+        public TextView tvAlertDate;
+
+        public ImageView ibSetBgColor;
+    }
+
+    private static final Map<Integer, Integer> sBgSelectorBtnsMap = new HashMap<Integer, Integer>();//存储资源
+    static {
+        sBgSelectorBtnsMap.put(R.id.iv_bg_yellow, ResourceParser.YELLOW);
+        sBgSelectorBtnsMap.put(R.id.iv_bg_red, ResourceParser.RED);
+        sBgSelectorBtnsMap.put(R.id.iv_bg_blue, ResourceParser.BLUE);
+        sBgSelectorBtnsMap.put(R.id.iv_bg_green, ResourceParser.GREEN);
+        sBgSelectorBtnsMap.put(R.id.iv_bg_white, ResourceParser.WHITE);
+    }//存储资源id和对应资源
+
+    private static final Map<Integer, Integer> sBgSelectorSelectionMap = new HashMap<Integer, Integer>();
+    static {
+        sBgSelectorSelectionMap.put(ResourceParser.YELLOW, R.id.iv_bg_yellow_select);
+        sBgSelectorSelectionMap.put(ResourceParser.RED, R.id.iv_bg_red_select);
+        sBgSelectorSelectionMap.put(ResourceParser.BLUE, R.id.iv_bg_blue_select);
+        sBgSelectorSelectionMap.put(ResourceParser.GREEN, R.id.iv_bg_green_select);
+        sBgSelectorSelectionMap.put(ResourceParser.WHITE, R.id.iv_bg_white_select);
+    }
+
+    private static final Map<Integer, Integer> sFontSizeBtnsMap = new HashMap<Integer, Integer>();
+    static {
+        sFontSizeBtnsMap.put(R.id.ll_font_large, ResourceParser.TEXT_LARGE);
+        sFontSizeBtnsMap.put(R.id.ll_font_small, ResourceParser.TEXT_SMALL);
+        sFontSizeBtnsMap.put(R.id.ll_font_normal, ResourceParser.TEXT_MEDIUM);
+        sFontSizeBtnsMap.put(R.id.ll_font_super, ResourceParser.TEXT_SUPER);
+    }
+
+    private static final Map<Integer, Integer> sFontSelectorSelectionMap = new HashMap<Integer, Integer>();
+    static {
+        sFontSelectorSelectionMap.put(ResourceParser.TEXT_LARGE, R.id.iv_large_select);
+        sFontSelectorSelectionMap.put(ResourceParser.TEXT_SMALL, R.id.iv_small_select);
+        sFontSelectorSelectionMap.put(ResourceParser.TEXT_MEDIUM, R.id.iv_medium_select);
+        sFontSelectorSelectionMap.put(ResourceParser.TEXT_SUPER, R.id.iv_super_select);
+    }//以上都是①map存储数据
+
+    private static final String TAG = "NoteEditActivity";
+
+    private HeadViewHolder mNoteHeaderHolder;
+
+    private View mHeadViewPanel;//声明一个view对象，用于第一个显示
+
+    private View mNoteBgColorSelector;//用于便签颜色选择的view
+
+    private View mFontSizeSelector;//用于设置字体对象的view
+
+    private EditText mNoteEditor;//用于文本编辑的v控件
+
+    private View mNoteEditorPanel;//用于文本编辑的面板 view
+
+    private WorkingNote mWorkingNote;//初始化便签
+
+    private SharedPreferences mSharedPrefs;//声明了SharedPreferences类，数据存储类
+    private int mFontSizeId;
+
+    private static final String PREFERENCE_FONT_SIZE = "pref_font_size";
+
+    private static final int SHORTCUT_ICON_TITLE_MAX_LEN = 10;
+
+    public static final String TAG_CHECKED = String.valueOf('\u221A');
+    public static final String TAG_UNCHECKED = String.valueOf('\u25A1');
+
+    private LinearLayout mEditTextList;//声明了一个线性布局
+
+    private String mUserQuery;
+    private Pattern mPattern;
+
+    //绘制界面
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        this.setContentView(R.layout.note_edit);
+
+        if (savedInstanceState == null && !initActivityState(getIntent())) {
+            finish();
+            return;
+        }
+        initResources();
+    }
+
+    /**
+     * Current activity may be killed when the memory is low. Once it is killed, for another time
+     * user load this activity, we should restore the former state
+     */
+    //通过保存的activity信息，来恢复一个activity
+    @Override
+    protected void onRestoreInstanceState(Bundle savedInstanceState) {
+        super.onRestoreInstanceState(savedInstanceState);
+        if (savedInstanceState != null && savedInstanceState.containsKey(Intent.EXTRA_UID)) {
+            Intent intent = new Intent(Intent.ACTION_VIEW);
+            intent.putExtra(Intent.EXTRA_UID, savedInstanceState.getLong(Intent.EXTRA_UID));
+            if (!initActivityState(intent)) {
+                finish();
+                return;
+            }
+            Log.d(TAG, "Restoring from killed activity");
+        }
+    }
+
+    private boolean initActivityState(Intent intent) {
+        /**
+         * If the user specified the {@link Intent#ACTION_VIEW} but not provided with id,
+         * then jump to the NotesListActivity
+         */
+        mWorkingNote = null;
+        if (TextUtils.equals(Intent.ACTION_VIEW, intent.getAction())) { //如果intent动作为显示的话，即显示便签
+            long noteId = intent.getLongExtra(Intent.EXTRA_UID, 0);
+            mUserQuery = "";
+            /**
+             * Starting from the searched result
+             */
+            //如果有数据键的话，根据键查便签id
+            if (intent.hasExtra(SearchManager.EXTRA_DATA_KEY)) {
+                noteId = Long.parseLong(intent.getStringExtra(SearchManager.EXTRA_DATA_KEY));
+                mUserQuery = intent.getStringExtra(SearchManager.USER_QUERY);
+            }
+
+            //在数据库中无id
+            if (!DataUtils.visibleInNoteDatabase(getContentResolver(), noteId, Notes.TYPE_NOTE)) {
+                Intent jump = new Intent(this, NotesListActivity.class);
+                startActivity(jump);
+                showToast(R.string.error_note_not_exist);//显示便签不存在
+                finish();
+                return false;
+            } else {//在数据库中有id
+                mWorkingNote = WorkingNote.load(this, noteId);//加载id
+                if (mWorkingNote == null) {
+                    Log.e(TAG, "load note failed with note id" + noteId);
+                    finish();
+                    return false;//初始化便签失败，打印错误信息
+                }
+            }
+            getWindow().setSoftInputMode(
+                    WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN
+                            | WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);/*
+            给当前窗口设置软键盘模式
+            */
+        } else if(TextUtils.equals(Intent.ACTION_INSERT_OR_EDIT, intent.getAction())) {
+            //接受的intent的action是ACTION_INSERT_OR_EDIT，编辑便签
+            // New note
+            long folderId = intent.getLongExtra(Notes.INTENT_EXTRA_FOLDER_ID, 0);
+            int widgetId = intent.getIntExtra(Notes.INTENT_EXTRA_WIDGET_ID,
+                    AppWidgetManager.INVALID_APPWIDGET_ID);
+            int widgetType = intent.getIntExtra(Notes.INTENT_EXTRA_WIDGET_TYPE,
+                    Notes.TYPE_WIDGET_INVALIDE);
+            int bgResId = intent.getIntExtra(Notes.INTENT_EXTRA_BACKGROUND_ID,
+                    ResourceParser.getDefaultBgId(this));
+            //获得intent中携带的数据
+
+            // 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) {//intent中有电话号码，calldate
+                if (TextUtils.isEmpty(phoneNumber)) {//如果未记录电话号
+                    Log.w(TAG, "The call record number is null");
+                }
+                long noteId = 0;
+                if ((noteId = DataUtils.getNoteIdByPhoneNumberAndCallDate(getContentResolver(),
+                        phoneNumber, callDate)) > 0) {//如果根据电话号码有id
+                    mWorkingNote = WorkingNote.load(this, noteId);
+                    if (mWorkingNote == null) {
+                        Log.e(TAG, "load call note failed with note id" + noteId);
+                        finish();
+                        return false;
+                    }
+                } else {//没有则创建新的便签，电话号给电话簿
+                    mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId,
+                            widgetType, bgResId);
+                    mWorkingNote.convertToCallNote(phoneNumber, callDate);
+                }
+            } else {//没有电话号则创建空的便签
+                mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId, widgetType,
+                        bgResId);
+            }
+
+            getWindow().setSoftInputMode(
+                    WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE
+                            | WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
+        } else {//不是显示便签也不是编辑便签，报错
+            Log.e(TAG, "Intent not specified action, should not support");
+            finish();
+            return false;
+        }
+        mWorkingNote.setOnSettingStatusChangedListener(this);
+        return true;
+    }
+
+    //恢复activity，启动
+    @Override
+    protected void onResume() {
+        super.onResume();
+        initNoteScreen();
+    }
+
+    //初始化便签界面
+    private void initNoteScreen() {
+        //设置文本外观
+        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();
+    }
+
+    //设置闹钟
+    private void showAlertHeader() {
+        if (mWorkingNote.hasClockAlert()) {//便签设置了闹钟
+            long time = System.currentTimeMillis();
+            if (time > mWorkingNote.getAlertDate()) {//系统时间大于设置的闹钟时间
+                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);//设置闹钟图标，可见
+        } else {//未设置闹钟图标，设置闹钟日期，图标过期
+            mNoteHeaderHolder.tvAlertDate.setVisibility(View.GONE);
+            mNoteHeaderHolder.ivAlertIcon.setVisibility(View.GONE);
+        };
+    }
+
+    @Override
+    protected void onNewIntent(Intent intent) {//当前activity再次被调用且一个实例在栈顶，通过onNewIntent方法接受intent
+        super.onNewIntent(intent);
+        initActivityState(intent);
+    }
+
+    //activity被销毁前，储存当前activity信息
+    @Override
+    protected void onSaveInstanceState(Bundle outState) {//离开界面时保存的数据
+        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()) {//便签不在数据库进行保存
+            saveNote();
+        }
+        outState.putLong(Intent.EXTRA_UID, mWorkingNote.getNoteId());
+        Log.d(TAG, "Save working note id: " + mWorkingNote.getNoteId() + " onSaveInstanceState");
+    }
+
+    @Override//分发触屏事件
+    public boolean dispatchTouchEvent(MotionEvent ev) {
+        if (mNoteBgColorSelector.getVisibility() == View.VISIBLE
+                && !inRangeOfView(mNoteBgColorSelector, ev)) {
+            mNoteBgColorSelector.setVisibility(View.GONE);
+            return true;
+        }//设置颜色选择器
+
+        if (mFontSizeSelector.getVisibility() == View.VISIBLE
+                && !inRangeOfView(mFontSizeSelector, ev)) {
+            mFontSizeSelector.setVisibility(View.GONE);
+            return true;
+        }//设置字体大小选择器
+        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;
+                }//如果触摸坐标位置超出view，返回false
+        return true;
+    }
+
+    private void initResources() {
+        mHeadViewPanel = findViewById(R.id.note_title);
+        mNoteHeaderHolder = new HeadViewHolder();
+        mNoteHeaderHolder.tvModified = (TextView) findViewById(R.id.tv_modified_date);
+        mNoteHeaderHolder.ivAlertIcon = (ImageView) findViewById(R.id.iv_alert_icon);
+        mNoteHeaderHolder.tvAlertDate = (TextView) findViewById(R.id.tv_alert_date);
+        mNoteHeaderHolder.ibSetBgColor = (ImageView) findViewById(R.id.btn_set_bg_color);
+        mNoteHeaderHolder.ibSetBgColor.setOnClickListener(this);
+        mNoteEditor = (EditText) findViewById(R.id.note_edit_view);
+        mNoteEditorPanel = findViewById(R.id.sv_note_edit);
+        mNoteBgColorSelector = findViewById(R.id.note_bg_color_selector);
+        for (int id : sBgSelectorBtnsMap.keySet()) {
+            ImageView iv = (ImageView) findViewById(id);
+            iv.setOnClickListener(this);//设置颜色选择器的显示view和监听器
+        }//对开头声明的变量的初始化，初始化布局等
+
+        mFontSizeSelector = findViewById(R.id.font_size_selector);
+        for (int id : sFontSizeBtnsMap.keySet()) {
+            View view = findViewById(id);
+            view.setOnClickListener(this);//设置字体大小选择器的各字体的view和监听器
+        };
+        mSharedPrefs = PreferenceManager.getDefaultSharedPreferences(this);
+        mFontSizeId = mSharedPrefs.getInt(PREFERENCE_FONT_SIZE, ResourceParser.BG_DEFAULT_FONT_SIZE);//获得默认字体大小id
+        /**
+         * HACKME: Fix bug of store the resource id in shared preference.
+         * The id may larger than the length of resources, in this case,
+         * return the {@link ResourceParser#BG_DEFAULT_FONT_SIZE}
+         */
+        if(mFontSizeId >= TextAppearanceResources.getResourcesSize()) {//默认字体大小id超出范围，进行更改
+            mFontSizeId = ResourceParser.BG_DEFAULT_FONT_SIZE;
+        }
+        mEditTextList = (LinearLayout) findViewById(R.id.note_edit_list);//实例化布局
+    }
+
+    //暂停activity，淡出
+    @Override
+    protected void onPause() {
+        super.onPause();
+        if(saveNote()) {
+            Log.d(TAG, "Note data was saved with length:" + mWorkingNote.getContent().length());
+        }
+        clearSettingState();
+    }
+
+    //更新桌面挂件，进行同步
+    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);
+    }
+
+    //响应用户对view对象的点击，颜色字体大小选择器
+    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);
+        }
+    }
+
+    //响应用户点击back按键
+    @Override
+    public void onBackPressed() {
+        if(clearSettingState()) {
+            return;
+        }
+
+        saveNote();
+        super.onBackPressed();
+    }
+
+    //响应back前先清空设置
+    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;
+    }
+
+    //响应便签背景颜色改变，当用户通过颜色选择器选择颜色
+    public void onBackgroundColorChanged() {
+        findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility(
+                View.VISIBLE);
+        mNoteEditorPanel.setBackgroundResource(mWorkingNote.getBgColorResId());
+        mHeadViewPanel.setBackgroundResource(mWorkingNote.getTitleBgResId());
+    }
+
+    //准备选择菜单
+    @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);//实例化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);//实例化菜单中的项
+        } 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;
+    }
+
+    //响应菜单中某项被选择
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {//根据项的id进行操作
+            case R.id.menu_new_note:
+                createNewNote();//选择创建便签，调用createNewNote方法
+                break;
+            case R.id.menu_delete://选择删除便签
+                AlertDialog.Builder builder = new AlertDialog.Builder(this);//弹出一个对话框，进行选择
+                builder.setTitle(getString(R.string.alert_title_delete));
+                builder.setIcon(android.R.drawable.ic_dialog_alert);
+                builder.setMessage(getString(R.string.alert_message_delete_note));
+                builder.setPositiveButton(android.R.string.ok,//设置确定按钮
+                        new DialogInterface.OnClickListener() {//对该按钮设置点击监听器
+                            public void onClick(DialogInterface dialog, int which) {
+                                deleteCurrentNote();
+                                finish();
+                            }
+                        });
+                builder.setNegativeButton(android.R.string.cancel, null);//设置取消按钮
+                builder.show();//显示对话框
+                break;
+            case R.id.menu_font_size:
+                mFontSizeSelector.setVisibility(View.VISIBLE);//设置字体选择器可见
+                findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.VISIBLE);//应用字体
+                break;
+            case R.id.menu_list_mode:
+                mWorkingNote.setCheckListMode(mWorkingNote.getCheckListMode() == 0 ?
+                        TextNote.MODE_CHECK_LIST : 0);
+                break;
+            case R.id.menu_share:
+                getWorkingText();
+                sendTo(this, mWorkingNote.getContent());
+                break;
+            case R.id.menu_send_to_desktop://送到桌面
+                sendToDesktop();
+                break;
+            case R.id.menu_alert://设置闹钟
+                setReminder();
+                break;
+            case R.id.menu_delete_remind://删除闹钟
+                mWorkingNote.setAlertDate(0, false);
+                break;
+            default:
+                break;
+        }
+        return true;
+    }
+
+    //设置闹钟
+    private void setReminder() {
+        DateTimePickerDialog d = new DateTimePickerDialog(this, System.currentTimeMillis());//实例闹钟对话框
+        d.setOnDateTimeSetListener(new OnDateTimeSetListener() {//响应日期设置
+            public void OnDateTimeSet(AlertDialog dialog, long date) {
+                mWorkingNote.setAlertDate(date	, true);
+            }
+        });
+        d.show();
+    }
+
+    /**
+     * Share note to apps that support {@link Intent#ACTION_SEND} action
+     * and {@text/plain} type
+     */
+    //向某个应用发送
+    private void sendTo(Context context, String info) {
+        Intent intent = new Intent(Intent.ACTION_SEND);
+        intent.putExtra(Intent.EXTRA_TEXT, info);//设置传递信息，
+        intent.setType("text/plain");//设置类型
+        context.startActivity(intent);//传递
+    }
+
+    //创建新的便签
+    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);//设置动作为编辑
+        intent.putExtra(Notes.INTENT_EXTRA_FOLDER_ID, mWorkingNote.getFolderId());//设置键值对数据，文件夹id
+        startActivity(intent);
+    }
+
+    //删除当前便签
+    private void deleteCurrentNote() {
+        if (mWorkingNote.existInDatabase()) {//在数据库中
+            HashSet<Long> ids = new HashSet<Long>();
+            long id = mWorkingNote.getNoteId();
+            if (id != Notes.ID_ROOT_FOLDER) {
+                ids.add(id);//不是头文件id保存下来
+            } else {
+                Log.d(TAG, "Wrong note id, should not happen");
+            }
+            if (!isSyncMode()) {//不是同步模式，进行删除
+                if (!DataUtils.batchDeleteNotes(getContentResolver(), ids)) {
+                    Log.e(TAG, "Delete Note error");
+                }
+            } else {
+                if (!DataUtils.batchMoveToFolder(getContentResolver(), ids, Notes.ID_TRASH_FOLER)) {
+                    Log.e(TAG, "Move notes to trash folder error, should not happens");
+                }
+            }
+        }
+        mWorkingNote.markDeleted(true);//标记已删除
+    }
+
+    //判断是否是同步模式
+    private boolean isSyncMode() {
+        return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0;
+    }
+
+    //响应闹钟改变
+    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()) {//当前便签不在数据库中先保存
+            saveNote();
+        }
+        if (mWorkingNote.getNoteId() > 0) {//有便签，进行闹钟更改
+            Intent intent = new Intent(this, AlarmReceiver.class);
+            intent.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mWorkingNote.getNoteId()));
+            PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0);
+            AlarmManager alarmManager = ((AlarmManager) getSystemService(ALARM_SERVICE));
+            showAlertHeader();
+            if(!set) {
+                alarmManager.cancel(pendingIntent);
+            } else {
+                alarmManager.set(AlarmManager.RTC_WAKEUP, date, pendingIntent);
+            }
+        } else {//没有便签
+            /**
+             * There is the condition that user has input nothing (the note is
+             * not worthy saving), we have no note id, remind the user that he
+             * should input something
+             */
+            Log.e(TAG, "Clock alert setting error");
+            showToast(R.string.error_note_empty_for_clock);
+        }
+    }
+
+    public void onWidgetChanged() {
+        updateWidget();
+    }
+
+    //响应编辑文本框删除
+    public void onEditTextDelete(int index, String text) {
+        int childCount = mEditTextList.getChildCount();//返回子元素个数，view
+        if (childCount == 1) {//子view个数=1，则无文本编辑框
+            return;
+        }
+
+        for (int i = index + 1; i < childCount; i++) {
+            ((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text))
+                    .setIndex(i - 1);
+        }
+
+        mEditTextList.removeViewAt(index);//根据index删除view
+        NoteEditText edit = null;
+        if(index == 0) {
+            edit = (NoteEditText) mEditTextList.getChildAt(0).findViewById(
+                    R.id.et_edit_text);
+        } else {
+            edit = (NoteEditText) mEditTextList.getChildAt(index - 1).findViewById(
+                    R.id.et_edit_text);
+        }
+        int length = edit.length();
+        edit.append(text);
+        edit.requestFocus();//请求焦点，用于处理
+        edit.setSelection(length);
+    }
+
+    //响应打开文本编辑框
+    public void onEditTextEnter(int index, String text) {
+        /**
+         * Should not happen, check for debug
+         */
+        if(index > mEditTextList.getChildCount()) {
+            Log.e(TAG, "Index out of mEditTextList boundrary, should not happen");
+        }
+
+        View view = getListItem(text, index);
+        mEditTextList.addView(view, index);//向其添加一个新的view
+        NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text);
+        edit.requestFocus();//请求焦点，用于处理
+        edit.setSelection(0);
+        for (int i = index + 1; i < mEditTextList.getChildCount(); i++) {
+            ((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text))
+                    .setIndex(i);
+        }
+    }
+
+    //切换到列表模式
+    private void switchToListMode(String text) {
+        mEditTextList.removeAllViews();//移除所有view
+        String[] items = text.split("\n");
+        int index = 0;
+        for (String item : items) {
+            if(!TextUtils.isEmpty(item)) {
+                mEditTextList.addView(getListItem(item, index));
+                index++;//item不为空，向编辑文本列表变量中加该view
+            }
+        }
+        mEditTextList.addView(getListItem("", index));
+        mEditTextList.getChildAt(index).findViewById(R.id.et_edit_text).requestFocus();
+
+        mNoteEditor.setVisibility(View.GONE);//文本编辑器不可见
+        mEditTextList.setVisibility(View.VISIBLE);//设置文本列表可见
+    }
+
+    //获得高亮的结果
+    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;
+    }
+
+    //获取列表项
+    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);//实例化view
+        edit.setTextAppearance(this, TextAppearanceResources.getTexAppearanceResource(mFontSizeId));
+        CheckBox cb = ((CheckBox) view.findViewById(R.id.cb_edit_item));//设置复选框
+        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)) {//被勾选
+            cb.setChecked(true);
+            edit.setPaintFlags(edit.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);
+            item = item.substring(TAG_CHECKED.length(), item.length()).trim();
+        } else if (item.startsWith(TAG_UNCHECKED)) {//未被勾选
+            cb.setChecked(false);
+            edit.setPaintFlags(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG);
+            item = item.substring(TAG_UNCHECKED.length(), item.length()).trim();
+        }
+
+        edit.setOnTextViewChangeListener(this);
+        edit.setIndex(index);
+        edit.setText(getHighlightQueryResult(item, mUserQuery));
+        return view;
+    }
+
+    //响应文本修改
+    public void onTextChange(int index, boolean hasText) {
+        if (index >= mEditTextList.getChildCount()) {//位置超过范围
+            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);
+        }
+    }
+
+    //响应点击列表模式改变
+    public void onCheckListModeChanged(int oldMode, int newMode) {
+        if (newMode == TextNote.MODE_CHECK_LIST) {//切换到列表模式
+            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) {//当前模式是列表
+            StringBuilder sb = new StringBuilder();
+            for (int i = 0; i < mEditTextList.getChildCount(); i++) {//变量列表中列表项
+                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;//选中
+                    } else {
+                        sb.append(TAG_UNCHECKED).append(" ").append(edit.getText()).append("\n");//不选中
+                    }
+                }
+            }
+            mWorkingNote.setWorkingText(sb.toString());
+        } else {
+            mWorkingNote.setWorkingText(mNoteEditor.getText().toString());
+        }
+        return hasChecked;
+    }
+
+    //保存便签
+    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;
+    }
+
+    //送到桌面
+    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();//先保存
+        }
+
+        if (mWorkingNote.getNoteId() > 0) {//有便签
+            Intent sender = new Intent();//建立一个intent用于发送信息，保存有要发送的信息
+            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");//动作为安装到桌面
+            showToast(R.string.info_note_enter_desktop);
+            sendBroadcast(sender);//进行广播
+        } else {//无便签报错
+            /**
+             * 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);
+        }
+    }
+
+    //编辑小图标标题
+    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;
+    }
+
+    //进行提示显示
+    private void showToast(int resId) {
+        showToast(resId, Toast.LENGTH_SHORT);
+    }
+
+    //进行提示显示
+    private void showToast(int resId, int duration) {
+        Toast.makeText(this, resId, duration).show();
+    }
+}

other/07_211440108向金成_代码标注/ui/NoteEditText.java

@@ -0,0 +1,229 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.content.Context;
+import android.graphics.Rect;
+import android.text.Layout;
+import android.text.Selection;
+import android.text.Spanned;
+import android.text.TextUtils;
+import android.text.style.URLSpan;
+import android.util.AttributeSet;
+import android.util.Log;
+import android.view.ContextMenu;
+import android.view.KeyEvent;
+import android.view.MenuItem;
+import android.view.MenuItem.OnMenuItemClickListener;
+import android.view.MotionEvent;
+import android.widget.EditText;
+
+import net.micode.notes.R;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class NoteEditText extends EditText {
+    private static final String TAG = "NoteEditText";
+    private int mIndex;
+    private int mSelectionStartBeforeDelete;
+
+    private static final String SCHEME_TEL = "tel:" ;
+    private static final String SCHEME_HTTP = "http:" ;
+    private static final String SCHEME_EMAIL = "mailto:" ;
+
+    //hashmap 建立电话号，邮件，web地址的连接
+    private static final Map<String, Integer> sSchemaActionResMap = new HashMap<String, Integer>();
+    static {
+        sSchemaActionResMap.put(SCHEME_TEL, R.string.note_link_tel);
+        sSchemaActionResMap.put(SCHEME_HTTP, R.string.note_link_web);
+        sSchemaActionResMap.put(SCHEME_EMAIL, R.string.note_link_email);
+    }
+
+    /**
+     * Call by the {@link NoteEditActivity} to delete or add edit text
+     */
+    //监听文本改变监听器接口
+    public interface OnTextViewChangeListener {
+        /**
+         * Delete current edit text when {@link KeyEvent#KEYCODE_DEL} happens
+         * and the text is null
+         */
+        void onEditTextDelete(int index, String text);
+
+        /**
+         * Add edit text after current edit text when {@link KeyEvent#KEYCODE_ENTER}
+         * happen
+         */
+        void onEditTextEnter(int index, String text);
+
+        /**
+         * Hide or show item option when text change
+         */
+        void onTextChange(int index, boolean hasText);
+    }
+
+    private OnTextViewChangeListener mOnTextViewChangeListener;
+
+    //根据context设置文本
+    public NoteEditText(Context context) {
+        super(context, null);
+        mIndex = 0;
+    }
+
+    //设置光标
+    public void setIndex(int index) {
+        mIndex = index;
+    }
+
+    //设置监听器
+    public void setOnTextViewChangeListener(OnTextViewChangeListener listener) {
+        mOnTextViewChangeListener = listener;
+    }
+
+    //AttributeSet自定义控件的属性
+    public NoteEditText(Context context, AttributeSet attrs) {
+        super(context, attrs, android.R.attr.editTextStyle);
+    }
+
+    public NoteEditText(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+        // TODO Auto-generated constructor stub
+    }
+
+    @Override//响应触摸事件
+    public boolean onTouchEvent(MotionEvent event) {
+        switch (event.getAction()) {
+            case MotionEvent.ACTION_DOWN:
+
+                int x = (int) event.getX();
+                int y = (int) event.getY();
+                x -= getTotalPaddingLeft();
+                y -= getTotalPaddingTop();
+                x += getScrollX();
+                y += getScrollY();//更新坐标
+
+                Layout layout = getLayout();
+                int line = layout.getLineForVertical(y);
+                int off = layout.getOffsetForHorizontal(line, x);//更新布局
+                Selection.setSelection(getText(), off);//更新光标位置
+                break;
+        }
+
+        return super.onTouchEvent(event);
+    }
+
+    //响应用户按下按键
+    @Override
+    public boolean onKeyDown(int keyCode, KeyEvent event) {
+        switch (keyCode) {
+            case KeyEvent.KEYCODE_ENTER://点击enter按键
+                if (mOnTextViewChangeListener != null) {
+                    return false;
+                }
+                break;
+            case KeyEvent.KEYCODE_DEL://点击del按键
+                mSelectionStartBeforeDelete = getSelectionStart();
+                break;
+            default:
+                break;
+        }
+        return super.onKeyDown(keyCode, event);//其他按键执行父类方法
+    }
+
+    //响应松开按键
+    @Override
+    public boolean onKeyUp(int keyCode, KeyEvent event) {
+        switch(keyCode) {
+            case KeyEvent.KEYCODE_DEL:
+                if (mOnTextViewChangeListener != null) {//被修改的话
+                    if (0 == mSelectionStartBeforeDelete && mIndex != 0) {//之前删除过且文本非空
+                        mOnTextViewChangeListener.onEditTextDelete(mIndex, getText().toString());
+                        return true;
+                    }
+                } else {
+                    Log.d(TAG, "OnTextViewChangeListener was not seted");
+                }
+                break;
+            case KeyEvent.KEYCODE_ENTER:
+                if (mOnTextViewChangeListener != null) {//修改过
+                    int selectionStart = getSelectionStart();
+                    String text = getText().subSequence(selectionStart, length()).toString();
+                    setText(getText().subSequence(0, selectionStart));
+                    mOnTextViewChangeListener.onEditTextEnter(mIndex + 1, text);//调用监听器的对应方法
+                } else {
+                    Log.d(TAG, "OnTextViewChangeListener was not seted");
+                }
+                break;
+            default:
+                break;
+        }
+        return super.onKeyUp(keyCode, event);
+    }
+
+    //响应焦点改变
+    @Override
+    protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) {
+        if (mOnTextViewChangeListener != null) {//如果有改变
+            if (!focused && TextUtils.isEmpty(getText())) {//有焦点，文本不空
+                mOnTextViewChangeListener.onTextChange(mIndex, false);
+            } else {
+                mOnTextViewChangeListener.onTextChange(mIndex, true);
+            }
+        }
+        super.onFocusChanged(focused, direction, previouslyFocusedRect);
+    }
+
+    //创建上下文菜单
+    @Override
+    protected void onCreateContextMenu(ContextMenu menu) {
+        if (getText() instanceof Spanned) {//有文本
+            int selStart = getSelectionStart();//获取开始位置
+            int selEnd = getSelectionEnd();//获取结束位置
+
+            int min = Math.min(selStart, selEnd);//获取从开头到结尾的最小值
+            int max = Math.max(selStart, selEnd);//最大值
+
+            final URLSpan[] urls = ((Spanned) getText()).getSpans(min, max, URLSpan.class);
+            //设置url的信息的范围值
+            if (urls.length == 1) {
+                int defaultResId = 0;
+                for(String schema: sSchemaActionResMap.keySet()) {
+                    if(urls[0].getURL().indexOf(schema) >= 0) {
+                        defaultResId = sSchemaActionResMap.get(schema);
+                        break;
+                    }
+                }
+
+                if (defaultResId == 0) {
+                    defaultResId = R.string.note_link_other;
+                }
+
+                //建立菜单
+                menu.add(0, 0, 0, defaultResId).setOnMenuItemClickListener(
+                        new OnMenuItemClickListener() {
+                            public boolean onMenuItemClick(MenuItem item) {
+                                // goto a new intent
+                                urls[0].onClick(NoteEditText.this);
+                                return true;
+                            }
+                        });
+            }
+        }
+        super.onCreateContextMenu(menu);
+    }
+}

other/07_211440108向金成_代码标注/ui/NoteItemData.java

@@ -0,0 +1,229 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.content.Context;
+import android.database.Cursor;
+import android.text.TextUtils;
+
+import net.micode.notes.data.Contact;
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.tool.DataUtils;
+
+
+public class NoteItemData {
+    //数据库中保存的便签的属性
+    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;//设置属性值
+
+    private long mId;
+    private long mAlertDate;
+    private int mBgColorId;
+    private long mCreatedDate;
+    private boolean mHasAttachment;
+    private long mModifiedDate;
+    private int mNotesCount;
+    private long mParentId;
+    private String mSnippet;
+    private int mType;
+    private int mWidgetId;
+    private int mWidgetType;
+    private String mName;
+    private String mPhoneNumber;
+
+    private boolean mIsLastItem;
+    private boolean mIsFirstItem;
+    private boolean mIsOnlyOneItem;
+    private boolean mIsOneNoteFollowingFolder;
+    private boolean mIsMultiNotesFollowingFolder;
+
+    //构造函数，设置通过光标能获得的属性
+    public NoteItemData(Context context, Cursor cursor) {
+        mId = cursor.getLong(ID_COLUMN);
+        mAlertDate = cursor.getLong(ALERTED_DATE_COLUMN);
+        mBgColorId = cursor.getInt(BG_COLOR_ID_COLUMN);
+        mCreatedDate = cursor.getLong(CREATED_DATE_COLUMN);
+        mHasAttachment = (cursor.getInt(HAS_ATTACHMENT_COLUMN) > 0) ? true : false;
+        mModifiedDate = cursor.getLong(MODIFIED_DATE_COLUMN);
+        mNotesCount = cursor.getInt(NOTES_COUNT_COLUMN);
+        mParentId = cursor.getLong(PARENT_ID_COLUMN);
+        mSnippet = cursor.getString(SNIPPET_COLUMN);
+        mSnippet = mSnippet.replace(NoteEditActivity.TAG_CHECKED, "").replace(
+                NoteEditActivity.TAG_UNCHECKED, "");
+        mType = cursor.getInt(TYPE_COLUMN);
+        mWidgetId = cursor.getInt(WIDGET_ID_COLUMN);
+        mWidgetType = cursor.getInt(WIDGET_TYPE_COLUMN);
+
+        //初始化电话号
+        mPhoneNumber = "";
+        if (mParentId == Notes.ID_CALL_RECORD_FOLDER) {
+            mPhoneNumber = DataUtils.getCallNumberByNoteId(context.getContentResolver(), mId);
+            if (!TextUtils.isEmpty(mPhoneNumber)) {
+                mName = Contact.getContact(context, mPhoneNumber);
+                if (mName == null) {
+                    mName = mPhoneNumber;
+                }
+            }
+        }
+
+        if (mName == null) {
+            mName = "";
+        }
+        checkPostion(cursor);
+    }
+
+    //检测cursor指定项的位置
+    private void checkPostion(Cursor cursor) {
+        mIsLastItem = cursor.isLast() ? true : false;
+        mIsFirstItem = cursor.isFirst() ? true : false;
+        mIsOnlyOneItem = (cursor.getCount() == 1);
+        mIsMultiNotesFollowingFolder = false;
+        mIsOneNoteFollowingFolder = false;
+
+        if (mType == Notes.TYPE_NOTE && !mIsFirstItem) {
+            int position = cursor.getPosition();
+            if (cursor.moveToPrevious()) {
+                if (cursor.getInt(TYPE_COLUMN) == Notes.TYPE_FOLDER
+                        || cursor.getInt(TYPE_COLUMN) == Notes.TYPE_SYSTEM) {
+                    if (cursor.getCount() > (position + 1)) {
+                        mIsMultiNotesFollowingFolder = true;
+                    } else {
+                        mIsOneNoteFollowingFolder = true;
+                    }
+                }
+                if (!cursor.moveToNext()) {
+                    throw new IllegalStateException("cursor move to previous but can't move back");
+                }
+            }
+        }
+    }
+
+    //都是获取便签项的信息的方法
+    public boolean isOneFollowingFolder() {
+        return mIsOneNoteFollowingFolder;
+    }
+
+    public boolean isMultiFollowingFolder() {
+        return mIsMultiNotesFollowingFolder;
+    }
+
+    public boolean isLast() {
+        return mIsLastItem;
+    }
+
+    public String getCallName() {
+        return mName;
+    }
+
+    public boolean isFirst() {
+        return mIsFirstItem;
+    }
+
+    public boolean isSingle() {
+        return mIsOnlyOneItem;
+    }
+
+    public long getId() {
+        return mId;
+    }
+
+    public long getAlertDate() {
+        return mAlertDate;
+    }
+
+    public long getCreatedDate() {
+        return mCreatedDate;
+    }
+
+    public boolean hasAttachment() {
+        return mHasAttachment;
+    }
+
+    public long getModifiedDate() {
+        return mModifiedDate;
+    }
+
+    public int getBgColorId() {
+        return mBgColorId;
+    }
+
+    public long getParentId() {
+        return mParentId;
+    }
+
+    public int getNotesCount() {
+        return mNotesCount;
+    }
+
+    public long getFolderId () {
+        return mParentId;
+    }
+
+    public int getType() {
+        return mType;
+    }
+
+    public int getWidgetType() {
+        return mWidgetType;
+    }
+
+    public int getWidgetId() {
+        return mWidgetId;
+    }
+
+    public String getSnippet() {
+        return mSnippet;
+    }
+
+    public boolean hasAlert() {
+        return (mAlertDate > 0);
+    }
+
+    public boolean isCallRecord() {
+        return (mParentId == Notes.ID_CALL_RECORD_FOLDER && !TextUtils.isEmpty(mPhoneNumber));
+    }
+
+    public static int getNoteType(Cursor cursor) {
+        return cursor.getInt(TYPE_COLUMN);
+    }
+}

other/07_211540355吴梦阳_代码标注/data/MetaData.java

@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.gtask.data;
+
+import android.database.Cursor;
+import android.util.Log;
+
+import net.micode.notes.tool.GTaskStringUtils;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+
+ppublic class MetaData extends Task {
+    private final static String TAG = MetaData.class.getSimpleName();
+
+    private String mRelatedGid = null;
+
+    /**
+     设置元数据信息
+     */
+    public void setMeta(String gid, JSONObject metaInfo) {
+        try {
+            metaInfo.put(GTaskStringUtils.META_HEAD_GTASK_ID, gid);
+        } catch (JSONException e) {
+            Log.e(TAG, "failed to put related gid");
+        }
+        setNotes(metaInfo.toString());
+        setName(GTaskStringUtils.META_NOTE_NAME);
+    }
+}
+    public String getRelatedGid() {
+        return mRelatedGid;
+    }
+
+    /**
+     * 判断元数据是否需要保存
+     * @return 需要保存则返回true，否则返回false
+     */
+    @Override
+    public boolean isWorthSaving() {
+        return getNotes() != null;
+    }
+
+    /**
+     * 通过远程JSON内容设置元数据
+     * @param js 远程JSON内容
+     */
+    @Override
+    public void setContentByRemoteJSON(JSONObject js) {
+        super.setContentByRemoteJSON(js);
+        if (getNotes() != null) {
+            try {
+                JSONObject metaInfo = new JSONObject(getNotes().trim());
+                mRelatedGid = metaInfo.getString(GTaskStringUtils.META_HEAD_GTASK_ID);
+            } catch (JSONException e) {
+                Log.w(TAG, "failed to get related gid");
+                mRelatedGid = null;
+            }
+        }
+    }
+
+    /**
+     * 通过本地JSON内容设置元数据，不应该被调用
+     * @param js 本地JSON内容
+     * @throws IllegalAccessError 不应该被调用的异常
+     */
+    @Override
+    public void setContentByLocalJSON(JSONObject js) {
+        // this function should not be called
+        throw new IllegalAccessError("MetaData:setContentByLocalJSON should not be called");
+    }
+
+    /**
+     * 获取元数据本地JSON内容，不应该被调用
+     * @return 不应该被调用的异常
+     * @throws IllegalAccessError 不应该被调用的异常
+     */
+    @Override
+    public JSONObject getLocalJSONFromContent() {
+        throw new IllegalAccessError("MetaData:getLocalJSONFromContent should not be called");
+    }
+
+    /**
+     * 获取同步操作，不应该被调用
+     * @param c 游标
+     * @return 不应该被调用的异常
+     * @throws IllegalAccessError 不应该被调用的异常
+     */
+    @Override
+    public int getSyncAction(Cursor c) {
+        throw new IllegalAccessError("MetaData:getSyncAction should not be called");
+    }
+

other/07_211540355吴梦阳_代码标注/data/Node.java

@@ -0,0 +1,163 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.gtask.data;
+
+import android.database.Cursor;
+
+import org.json.JSONObject;
+//@param用于描述一个方法或函数的参数，它通常在方法的注释中使用。@param后面跟着参数的名称和描述
+//@return是一种Java文档标记，用于指定方法或函数的返回值类型及其含义。(在Java文档中，它通常用于描述方法的预期结果，包括返回值类型、异常处理和错误情况等
+
+public abstract class Node {
+    public static final int SYNC_ACTION_NONE = 0;
+
+    public static final int SYNC_ACTION_ADD_REMOTE = 1;
+
+    public static final int SYNC_ACTION_ADD_LOCAL = 2;
+
+    public static final int SYNC_ACTION_DEL_REMOTE = 3;
+
+    public static final int SYNC_ACTION_DEL_LOCAL = 4;
+
+    public static final int SYNC_ACTION_UPDATE_REMOTE = 5;
+
+    public static final int SYNC_ACTION_UPDATE_LOCAL = 6;
+
+    public static final int SYNC_ACTION_UPDATE_CONFLICT = 7;
+
+    public static final int SYNC_ACTION_ERROR = 8;
+
+    private String mGid;
+
+    private String mName;
+
+    private long mLastModified;
+
+    private boolean mDeleted;
+    /**
+     * 表示GTask中的一个节点，是其他具体节点的父类
+     */
+    public abstract class Node {
+
+        private String mGid = null; // GTask的gid
+        private String mName = ""; // 节点名称
+        private long mLastModified = 0; // 上次修改时间
+        private boolean mDeleted = false; // 是否已删除
+
+        /**
+         * 获取用于创建节点的JSON对象
+         * @param actionId 操作ID
+         * @return 用于创建节点的JSON对象
+         */
+        public abstract JSONObject getCreateAction(int actionId);
+
+        /**
+         * 获取用于更新节点的JSON对象
+         * @param actionId 操作ID
+         * @return 用于更新节点的JSON对象
+         */
+        public abstract JSONObject getUpdateAction(int actionId);
+
+        /**
+         * 根据从远程JSON对象中获取的信息设置节点的内容
+         * @param js 从远程JSON对象中获取的信息
+         */
+        public abstract void setContentByRemoteJSON(JSONObject js);
+
+        /**
+         * 根据从本地JSON对象中获取的信息设置节点的内容
+         * @param js 从本地JSON对象中获取的信息
+         */
+        public abstract void setContentByLocalJSON(JSONObject js);
+
+        /**
+         * 获取用于保存到本地的JSON对象
+         * @return 用于保存到本地的JSON对象
+         */
+        public abstract JSONObject getLocalJSONFromContent();
+
+        /**
+         * 根据数据库游标获取同步操作
+         * @param c 数据库游标
+         * @return 同步操作
+         */
+        public abstract int getSyncAction(Cursor c);
+
+        /**
+         * 设置GTask的gid
+         * @param gid GTask的gid
+         */
+        public void setGid(String gid) {
+            this.mGid = gid;
+        }
+
+        /**
+         * 设置节点名称
+         * @param name 节点名称
+         */
+        public void setName(String name) {
+            this.mName = name;
+        }
+
+        /**
+         * 设置上次修改时间
+         * @param lastModified 上次修改时间
+         */
+        public void setLastModified(long lastModified) {
+            this.mLastModified = lastModified;
+        }
+
+        /**
+         * 设置节点是否已删除
+         * @param deleted 节点是否已删除
+         */
+        public void setDeleted(boolean deleted) {
+            this.mDeleted = deleted;
+        }
+
+        /**
+         * 获取GTask的gid
+         * @return GTask的gid
+         */
+        public String getGid() {
+            return this.mGid;
+        }
+
+        /**
+         * 获取节点名称
+         * @return 节点名称
+         */
+        public String getName() {
+            return this.mName;
+        }
+
+        /**
+         * 获取上次修改时间
+         * @return 上次修改时间
+         */
+        public long getLastModified() {
+            return this.mLastModified;
+        }
+
+        /**
+         * 获取节点是否已删除
+         * @return 节点是否已删除
+         */
+        public boolean getDeleted() {
+            return this.mDeleted;
+        }
+    }

other/07_211540355吴梦阳_代码标注/data/SqlData.java

@@ -0,0 +1,286 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.gtask.data;
+
+import android.content.ContentResolver;
+import android.content.ContentUris;
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.Cursor;
+import android.net.Uri;
+import android.util.Log;
+
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.DataConstants;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.data.NotesDatabaseHelper.TABLE;
+import net.micode.notes.gtask.exception.ActionFailureException;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+
+/**
+ * 用于操作Sqlite数据库中的Data表
+ */
+public class SqlData {
+    private static final String TAG = SqlData.class.getSimpleName();
+
+    private static final int INVALID_ID = -99999;
+
+    public static final String[] PROJECTION_DATA = new String[] {
+            DataColumns.ID, DataColumns.MIME_TYPE, DataColumns.CONTENT, DataColumns.DATA1,
+            DataColumns.DATA3
+    };
+
+    public static final int DATA_ID_COLUMN = 0;
+
+    public static final int DATA_MIME_TYPE_COLUMN = 1;
+
+    public static final int DATA_CONTENT_COLUMN = 2;
+
+    public static final int DATA_CONTENT_DATA_1_COLUMN = 3;
+
+    public static final int DATA_CONTENT_DATA_3_COLUMN = 4;
+
+    private ContentResolver mContentResolver;
+
+    private boolean mIsCreate;
+
+    private long mDataId;
+
+    private String mDataMimeType;
+
+    private String mDataContent;
+
+    private long mDataContentData1;
+
+    private String mDataContentData3;
+
+    private ContentValues mDiffDataValues;
+
+}
+
+/**
+ * SqlData类，表示一个SQLite数据库表中的一行数据
+ */
+public class SqlData {
+    private static final String TAG = SqlData.class.getSimpleName();
+
+    private static final int INVALID_ID = -99999;
+
+    public static final String[] PROJECTION_DATA = new String[] {
+            DataColumns.ID, DataColumns.MIME_TYPE, DataColumns.CONTENT, DataColumns.DATA1,
+            DataColumns.DATA3
+    };
+
+    public static final int DATA_ID_COLUMN = 0;
+
+    public static final int DATA_MIME_TYPE_COLUMN = 1;
+
+    public static final int DATA_CONTENT_COLUMN = 2;
+
+    public static final int DATA_CONTENT_DATA_1_COLUMN = 3;
+
+    public static final int DATA_CONTENT_DATA_3_COLUMN = 4;
+
+    private ContentResolver mContentResolver;
+
+    private boolean mIsCreate;
+
+    private long mDataId;
+
+    private String mDataMimeType;
+
+    private String mDataContent;
+
+    private long mDataContentData1;
+
+    private String mDataContentData3;
+
+    private ContentValues mDiffDataValues;
+
+    /**
+     * 构造函数，创建一个新的SqlData对象
+     * @param context 上下文对象
+     */
+    public SqlData(Context context) {
+        mContentResolver = context.getContentResolver();
+        mIsCreate = true;
+        mDataId = INVALID_ID;
+        mDataMimeType = DataConstants.NOTE;
+        mDataContent = "";
+        mDataContentData1 = 0;
+        mDataContentData3 = "";
+        mDiffDataValues = new ContentValues();
+    }
+
+    /**
+     * 构造函数，创建一个新的SqlData对象，并从数据库查询结果Cursor中加载数据
+     * @param context 上下文对象
+     * @param c 查询结果Cursor对象
+     */
+    public SqlData(Context context, Cursor c) {
+        mContentResolver = context.getContentResolver();
+        mIsCreate = false;
+        loadFromCursor(c);
+        mDiffDataValues = new ContentValues();
+    }
+
+    /**
+     * 从查询结果Cursor对象中加载数据到当前SqlData对象中
+     * @param c 查询结果Cursor对象
+     */
+    private void loadFromCursor(Cursor c) {
+        mDataId = c.getLong(DATA_ID_COLUMN);
+        mDataMimeType = c.getString(DATA_MIME_TYPE_COLUMN);
+        mDataContent = c.getString(DATA_CONTENT_COLUMN);
+        mDataContentData1 = c.getLong(DATA_CONTENT_DATA_1_COLUMN);
+        mDataContentData3 = c.getString(DATA_CONTENT_DATA_3_COLUMN);
+    }
+
+    /**
+     * 根据传入的JSON对象设置当前SqlData对象的各个属性值
+     * @param js JSON对象
+     * @throws JSONException 如果JSON对象不符合要求，则抛出JSONException异常
+     */
+    /**
+     * 设置内容，根据给定的JSONObject对象进行设置
+     * @param js 包含需要设置的属性的JSONObject对象
+     * @throws JSONException 如果在解析JSONObject对象时出现异常，则抛出此异常
+     */
+    public void setContent(JSONObject js) throws JSONException {
+        // 获取DataColumns.ID，如果不存在则设置为INVALID_ID
+        long dataId = js.has(DataColumns.ID) ? js.getLong(DataColumns.ID) : INVALID_ID;
+        // 如果mIsCreate为true或者mDataId与dataId不相等，则将DataColumns.ID添加到mDiffDataValues中
+        if (mIsCreate || mDataId != dataId) {
+            mDiffDataValues.put(DataColumns.ID, dataId);
+        }
+        mDataId = dataId;
+
+        // 获取DataColumns.MIME_TYPE，如果不存在则设置为DataConstants.NOTE
+        String dataMimeType = js.has(DataColumns.MIME_TYPE) ? js.getString(DataColumns.MIME_TYPE)
+                : DataConstants.NOTE;
+        // 如果mIsCreate为true或者mDataMimeType与dataMimeType不相等，则将DataColumns.MIME_TYPE添加到mDiffDataValues中
+        if (mIsCreate || !mDataMimeType.equals(dataMimeType)) {
+            mDiffDataValues.put(DataColumns.MIME_TYPE, dataMimeType);
+        }
+        mDataMimeType = dataMimeType;
+
+        // 获取DataColumns.CONTENT，如果不存在则设置为空字符串
+        String dataContent = js.has(DataColumns.CONTENT) ? js.getString(DataColumns.CONTENT) : "";
+        // 如果mIsCreate为true或者mDataContent与dataContent不相等，则将DataColumns.CONTENT添加到mDiffDataValues中
+        if (mIsCreate || !mDataContent.equals(dataContent)) {
+            mDiffDataValues.put(DataColumns.CONTENT, dataContent);
+        }
+        mDataContent = dataContent;
+
+        // 获取DataColumns.DATA1，如果不存在则设置为0
+        long dataContentData1 = js.has(DataColumns.DATA1) ? js.getLong(DataColumns.DATA1) : 0;
+        // 如果mIsCreate为true或者mDataContentData1与dataContentData1不相等，则将DataColumns.DATA1添加到mDiffDataValues中
+        if (mIsCreate || mDataContentData1 != dataContentData1) {
+            mDiffDataValues.put(DataColumns.DATA1, dataContentData1);
+        }
+        mDataContentData1 = dataContentData1;
+
+        // 获取DataColumns.DATA3，如果不存在则设置为空字符串
+        String dataContentData3 = js.has(DataColumns.DATA3) ? js.getString(DataColumns.DATA3) : "";
+        // 如果mIsCreate为true或者mDataContentData3与dataContentData3不相等，则将DataColumns.DATA3添加到mDiffDataValues中
+        if (mIsCreate || !mDataContentData3.equals(dataContentData3)) {
+            mDiffDataValues.put(DataColumns.DATA3, dataContentData3);
+        }
+        mDataContentData3 = dataContentData3;
+    }
+
+    /**
+
+     获取笔记内容的JSON对象
+     @return 笔记内容的JSON对象，如果该笔记还未在数据库中创建，则返回null
+     @throws JSONException 如果JSON操作出现异常，则抛出该异常
+     */
+    public JSONObject getContent() throws JSONException {
+        if (mIsCreate) {
+            Log.e(TAG, "似乎该笔记尚未在数据库中创建");
+            return null;
+        }
+        JSONObject js = new JSONObject();
+        js.put(DataColumns.ID, mDataId);
+        js.put(DataColumns.MIME_TYPE, mDataMimeType);
+        js.put(DataColumns.CONTENT, mDataContent);
+        js.put(DataColumns.DATA1, mDataContentData1);
+        js.put(DataColumns.DATA3, mDataContentData3);
+        return js;
+    }
+    /**
+
+     提交数据更改
+
+     @param noteId 笔记ID
+
+     @param validateVersion 是否验证版本
+
+     @param version 版本号
+
+     @throws ActionFailureException 如果创建笔记失败，则抛出该异常
+     */
+    public void commit(long noteId, boolean validateVersion, long version) throws ActionFailureException {
+
+        if (mIsCreate) {
+            if (mDataId == INVALID_ID && mDiffDataValues.containsKey(DataColumns.ID)) {
+                mDiffDataValues.remove(DataColumns.ID);
+            }
+            mDiffDataValues.put(DataColumns.NOTE_ID, noteId);
+            Uri uri = mContentResolver.insert(Notes.CONTENT_DATA_URI, mDiffDataValues);
+            try {
+                mDataId = Long.valueOf(uri.getPathSegments().get(1));
+            } catch (NumberFormatException e) {
+                Log.e(TAG, "获取笔记ID出错：" + e.toString());
+                throw new ActionFailureException("创建笔记失败");
+            }
+        } else {
+            if (mDiffDataValues.size() > 0) {
+                int result = 0;
+                if (!validateVersion) {
+                    result = mContentResolver.update(ContentUris.withAppendedId(
+                            Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues, null, null);
+                } else {
+                    result = mContentResolver.update(ContentUris.withAppendedId(
+                                    Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues,
+                            " ? in (SELECT " + NoteColumns.ID + " FROM " + TABLE.NOTE
+                                    + " WHERE " + NoteColumns.VERSION + "=?)", new String[]{
+                                    String.valueOf(noteId), String.valueOf(version)
+                            });
+                }
+                if (result == 0) {
+                    Log.w(TAG, "没有更新。也许用户在同步时更新了笔记");
+                }
+            }
+        }
+
+        mDiffDataValues.clear();
+        mIsCreate = false;
+    }
+
+    /**
+
+     获取笔记ID
+     @return 笔记ID
+     */
+    public long getId() {
+        return mDataId;
+    }

other/07_211540355吴梦阳_代码标注/data/SqlNote.java

@@ -0,0 +1,564 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.gtask.data;
+
+import android.appwidget.AppWidgetManager;
+import android.content.ContentResolver;
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.Cursor;
+import android.net.Uri;
+import android.util.Log;
+
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.gtask.exception.ActionFailureException;
+import net.micode.notes.tool.GTaskStringUtils;
+import net.micode.notes.tool.ResourceParser;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.util.ArrayList;
+
+
+/**
+ * SqlNote 类用于表示便笺笔记，封装了便笺笔记相关的数据库操作
+ */
+public class SqlNote {
+    private static final String TAG = SqlNote.class.getSimpleName();
+
+    // 无效 ID，用于表示笔记未创建或者无效的情况
+    private static final int INVALID_ID = -99999;
+
+    // 笔记相关的查询列
+    public static final String[] PROJECTION_NOTE = new String[] {
+            NoteColumns.ID, NoteColumns.ALERTED_DATE, NoteColumns.BG_COLOR_ID,
+            NoteColumns.CREATED_DATE, NoteColumns.HAS_ATTACHMENT, NoteColumns.MODIFIED_DATE,
+            NoteColumns.NOTES_COUNT, NoteColumns.PARENT_ID, NoteColumns.SNIPPET, NoteColumns.TYPE,
+            NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE, NoteColumns.SYNC_ID,
+            NoteColumns.LOCAL_MODIFIED, NoteColumns.ORIGIN_PARENT_ID, NoteColumns.GTASK_ID,
+            NoteColumns.VERSION
+    };
+}
+
+    public static final int ID_COLUMN = 0;
+
+    public static final int ALERTED_DATE_COLUMN = 1;
+
+    public static final int BG_COLOR_ID_COLUMN = 2;
+
+    public static final int CREATED_DATE_COLUMN = 3;
+
+    public static final int HAS_ATTACHMENT_COLUMN = 4;
+
+    public static final int MODIFIED_DATE_COLUMN = 5;
+
+    public static final int NOTES_COUNT_COLUMN = 6;
+
+    public static final int PARENT_ID_COLUMN = 7;
+
+    public static final int SNIPPET_COLUMN = 8;
+
+    public static final int TYPE_COLUMN = 9;
+
+    public static final int WIDGET_ID_COLUMN = 10;
+
+    public static final int WIDGET_TYPE_COLUMN = 11;
+
+    public static final int SYNC_ID_COLUMN = 12;
+
+    public static final int LOCAL_MODIFIED_COLUMN = 13;
+
+    public static final int ORIGIN_PARENT_ID_COLUMN = 14;
+
+    public static final int GTASK_ID_COLUMN = 15;
+
+    public static final int VERSION_COLUMN = 16;
+
+    private Context mContext;
+
+    private ContentResolver mContentResolver;
+
+    private boolean mIsCreate;
+
+    private long mId;
+
+    private long mAlertDate;
+
+    private int mBgColorId;
+
+    private long mCreatedDate;
+
+    private int mHasAttachment;
+
+    private long mModifiedDate;
+
+    private long mParentId;
+
+    private String mSnippet;
+
+    private int mType;
+
+    private int mWidgetId;
+
+    private int mWidgetType;
+
+    private long mOriginParent;
+
+    private long mVersion;
+
+    private ContentValues mDiffNoteValues;
+
+    private ArrayList<SqlData> mDataList;
+
+
+    /**
+     * SqlNote类的构造函数，用于创建新的SqlNote对象
+     */
+    public SqlNote(Context context) {
+        mContext = context;
+        mContentResolver = context.getContentResolver();
+        mIsCreate = true;
+        mId = INVALID_ID;
+        mAlertDate = 0;
+        mBgColorId = ResourceParser.getDefaultBgId(context);
+        mCreatedDate = System.currentTimeMillis();
+        mHasAttachment = 0;
+        mModifiedDate = System.currentTimeMillis();
+        mParentId = 0;
+        mSnippet = "";
+        mType = Notes.TYPE_NOTE;
+        mWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID;
+        mWidgetType = Notes.TYPE_WIDGET_INVALIDE;
+        mOriginParent = 0;
+        mVersion = 0;
+        mDiffNoteValues = new ContentValues();
+        mDataList = new ArrayList<SqlData>();
+    }
+
+    /**
+     * 从Cursor中加载数据创建SqlNote对象
+     */
+    public SqlNote(Context context, Cursor c) {
+        mContext = context;
+        mContentResolver = context.getContentResolver();
+        mIsCreate = false;
+        loadFromCursor(c); // 从Cursor中加载数据
+        mDataList = new ArrayList<SqlData>();
+        if (mType == Notes.TYPE_NOTE)
+            loadDataContent(); // 加载数据内容
+        mDiffNoteValues = new ContentValues();
+    }
+
+    // 通过ID构造函数，创建一个已经存在的笔记对象
+    public SqlNote(Context context, long id) {
+        mContext = context;
+        mContentResolver = context.getContentResolver();
+        mIsCreate = false;
+        loadFromCursor(id);
+        mDataList = new ArrayList<SqlData>();
+        if (mType == Notes.TYPE_NOTE)
+            loadDataContent();
+        mDiffNoteValues = new ContentValues();
+    }
+
+    /* 从数据库中根据id加载数据 */
+    private void loadFromCursor(long id) {
+        Cursor c = null;
+        try {
+            // 根据id查询笔记信息
+            c = mContentResolver.query(Notes.CONTENT_NOTE_URI, PROJECTION_NOTE, "(_id=?)",
+                    new String[] {
+                            String.valueOf(id)
+                    }, null);
+            if (c != null) {
+                // 将游标移动到第一个位置
+                c.moveToNext();
+                // 从游标中加载笔记数据
+                loadFromCursor(c);
+            } else {
+                Log.w(TAG, "loadFromCursor: cursor = null");
+            }
+        } finally {
+            if (c != null)
+                c.close();
+        }
+    }
+
+    /**
+     * 从Cursor中加载SqlNote的数据
+     * @param c Cursor对象
+     */
+    private void loadFromCursor(Cursor c) {
+        mId = c.getLong(ID_COLUMN); // 笔记ID
+        mAlertDate = c.getLong(ALERTED_DATE_COLUMN); // 提醒时间
+        mBgColorId = c.getInt(BG_COLOR_ID_COLUMN); // 背景颜色
+        mCreatedDate = c.getLong(CREATED_DATE_COLUMN); // 创建时间
+        mHasAttachment = c.getInt(HAS_ATTACHMENT_COLUMN); // 是否有附件
+        mModifiedDate = c.getLong(MODIFIED_DATE_COLUMN); // 最后修改时间
+        mParentId = c.getLong(PARENT_ID_COLUMN); // 父节点ID
+        mSnippet = c.getString(SNIPPET_COLUMN); // 摘录内容
+        mType = c.getInt(TYPE_COLUMN); // 笔记类型
+        mWidgetId = c.getInt(WIDGET_ID_COLUMN); // 笔记小组件ID
+        mWidgetType = c.getInt(WIDGET_TYPE_COLUMN); // 笔记小组件类型
+        mVersion = c.getLong(VERSION_COLUMN); // 笔记版本号
+    }
+
+    /**
+     * 加载数据内容
+     */
+    private void loadDataContent() {
+        Cursor c = null;
+        mDataList.clear();
+        try {
+            c = mContentResolver.query(Notes.CONTENT_DATA_URI, SqlData.PROJECTION_DATA,
+                    "(note_id=?)", new String[] {
+                            String.valueOf(mId)
+                    }, null);
+            if (c != null) {
+                if (c.getCount() == 0) {
+                    Log.w(TAG, "似乎该笔记没有数据");
+                    return;
+                }
+                while (c.moveToNext()) {
+                    SqlData data = new SqlData(mContext, c);
+                    mDataList.add(data);
+                }
+            } else {
+                Log.w(TAG, "loadDataContent: 游标为null");
+            }
+        } finally {
+            if (c != null)
+                c.close();
+        }
+    }
+    public boolean setContent(JSONObject js) {
+        try {
+            JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
+            if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_SYSTEM) {
+                Log.w(TAG, "cannot set system folder");
+            } else if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_FOLDER) {
+                // for folder we can only update the snnipet and type
+                String snippet = note.has(NoteColumns.SNIPPET) ? note
+                        .getString(NoteColumns.SNIPPET) : "";
+                if (mIsCreate || !mSnippet.equals(snippet)) {
+                    mDiffNoteValues.put(NoteColumns.SNIPPET, snippet);
+                }
+                mSnippet = snippet;
+
+                int type = note.has(NoteColumns.TYPE) ? note.getInt(NoteColumns.TYPE)
+                        : Notes.TYPE_NOTE;
+                if (mIsCreate || mType != type) {
+                    mDiffNoteValues.put(NoteColumns.TYPE, type);
+                }
+                mType = type;
+            } else if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_NOTE) {
+                JSONArray dataArray = js.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
+                long id = note.has(NoteColumns.ID) ? note.getLong(NoteColumns.ID) : INVALID_ID;
+                if (mIsCreate || mId != id) {
+                    mDiffNoteValues.put(NoteColumns.ID, id);
+                }
+                mId = id;
+
+                long alertDate = note.has(NoteColumns.ALERTED_DATE) ? note
+                        .getLong(NoteColumns.ALERTED_DATE) : 0;
+                if (mIsCreate || mAlertDate != alertDate) {
+                    mDiffNoteValues.put(NoteColumns.ALERTED_DATE, alertDate);
+                }
+                mAlertDate = alertDate;
+
+                int bgColorId = note.has(NoteColumns.BG_COLOR_ID) ? note
+                        .getInt(NoteColumns.BG_COLOR_ID) : ResourceParser.getDefaultBgId(mContext);
+                if (mIsCreate || mBgColorId != bgColorId) {
+                    mDiffNoteValues.put(NoteColumns.BG_COLOR_ID, bgColorId);
+                }
+                mBgColorId = bgColorId;
+
+                long createDate = note.has(NoteColumns.CREATED_DATE) ? note
+                        .getLong(NoteColumns.CREATED_DATE) : System.currentTimeMillis();
+                if (mIsCreate || mCreatedDate != createDate) {
+                    mDiffNoteValues.put(NoteColumns.CREATED_DATE, createDate);
+                }
+                mCreatedDate = createDate;
+
+                int hasAttachment = note.has(NoteColumns.HAS_ATTACHMENT) ? note
+                        .getInt(NoteColumns.HAS_ATTACHMENT) : 0;
+                if (mIsCreate || mHasAttachment != hasAttachment) {
+                    mDiffNoteValues.put(NoteColumns.HAS_ATTACHMENT, hasAttachment);
+                }
+                mHasAttachment = hasAttachment;
+
+                long modifiedDate = note.has(NoteColumns.MODIFIED_DATE) ? note
+                        .getLong(NoteColumns.MODIFIED_DATE) : System.currentTimeMillis();
+                if (mIsCreate || mModifiedDate != modifiedDate) {
+                    mDiffNoteValues.put(NoteColumns.MODIFIED_DATE, modifiedDate);
+                }
+                mModifiedDate = modifiedDate;
+
+                long parentId = note.has(NoteColumns.PARENT_ID) ? note
+                        .getLong(NoteColumns.PARENT_ID) : 0;
+                if (mIsCreate || mParentId != parentId) {
+                    mDiffNoteValues.put(NoteColumns.PARENT_ID, parentId);
+                }
+                mParentId = parentId;
+
+                String snippet = note.has(NoteColumns.SNIPPET) ? note
+                        .getString(NoteColumns.SNIPPET) : "";
+                if (mIsCreate || !mSnippet.equals(snippet)) {
+                    mDiffNoteValues.put(NoteColumns.SNIPPET, snippet);
+                }
+                mSnippet = snippet;
+
+                int type = note.has(NoteColumns.TYPE) ? note.getInt(NoteColumns.TYPE)
+                        : Notes.TYPE_NOTE;
+                if (mIsCreate || mType != type) {
+                    mDiffNoteValues.put(NoteColumns.TYPE, type);
+                }
+                mType = type;
+
+                int widgetId = note.has(NoteColumns.WIDGET_ID) ? note.getInt(NoteColumns.WIDGET_ID)
+                        : AppWidgetManager.INVALID_APPWIDGET_ID;
+                if (mIsCreate || mWidgetId != widgetId) {
+                    mDiffNoteValues.put(NoteColumns.WIDGET_ID, widgetId);
+                }
+                mWidgetId = widgetId;
+
+                int widgetType = note.has(NoteColumns.WIDGET_TYPE) ? note
+                        .getInt(NoteColumns.WIDGET_TYPE) : Notes.TYPE_WIDGET_INVALIDE;
+                if (mIsCreate || mWidgetType != widgetType) {
+                    mDiffNoteValues.put(NoteColumns.WIDGET_TYPE, widgetType);
+                }
+                mWidgetType = widgetType;
+
+                long originParent = note.has(NoteColumns.ORIGIN_PARENT_ID) ? note
+                        .getLong(NoteColumns.ORIGIN_PARENT_ID) : 0;
+                if (mIsCreate || mOriginParent != originParent) {
+                    mDiffNoteValues.put(NoteColumns.ORIGIN_PARENT_ID, originParent);
+                }
+                mOriginParent = originParent;
+
+                for (int i = 0; i < dataArray.length(); i++) {
+                    JSONObject data = dataArray.getJSONObject(i);
+                    SqlData sqlData = null;
+                    if (data.has(DataColumns.ID)) {
+                        long dataId = data.getLong(DataColumns.ID);
+                        for (SqlData temp : mDataList) {
+                            if (dataId == temp.getId()) {
+                                sqlData = temp;
+                            }
+                        }
+                    }
+
+                    if (sqlData == null) {
+                        sqlData = new SqlData(mContext);
+                        mDataList.add(sqlData);
+                    }
+
+                    sqlData.setContent(data);
+                }
+            }
+        } catch (JSONException e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+            return false;
+        }
+        return true;
+    }
+
+    /**
+
+     获取当前对象的内容并返回一个JSONObject对象
+
+     */
+    public JSONObject getContent() {
+        try {
+            JSONObject js = new JSONObject();
+
+            if (mIsCreate) {
+                Log.e(TAG, "it seems that we haven't created this in database yet");
+                return null;
+            }
+
+            JSONObject note = new JSONObject();
+            if (mType == Notes.TYPE_NOTE) {
+                note.put(NoteColumns.ID, mId);
+                note.put(NoteColumns.ALERTED_DATE, mAlertDate);
+                note.put(NoteColumns.BG_COLOR_ID, mBgColorId);
+                note.put(NoteColumns.CREATED_DATE, mCreatedDate);
+                note.put(NoteColumns.HAS_ATTACHMENT, mHasAttachment);
+                note.put(NoteColumns.MODIFIED_DATE, mModifiedDate);
+                note.put(NoteColumns.PARENT_ID, mParentId);
+                note.put(NoteColumns.SNIPPET, mSnippet);
+                note.put(NoteColumns.TYPE, mType);
+                note.put(NoteColumns.WIDGET_ID, mWidgetId);
+                note.put(NoteColumns.WIDGET_TYPE, mWidgetType);
+                note.put(NoteColumns.ORIGIN_PARENT_ID, mOriginParent);
+                js.put(GTaskStringUtils.META_HEAD_NOTE, note);
+
+                JSONArray dataArray = new JSONArray();
+                for (SqlData sqlData : mDataList) {
+                    JSONObject data = sqlData.getContent();
+                    if (data != null) {
+                        dataArray.put(data);
+                    }
+                }
+                js.put(GTaskStringUtils.META_HEAD_DATA, dataArray);
+            } else if (mType == Notes.TYPE_FOLDER || mType == Notes.TYPE_SYSTEM) {
+                note.put(NoteColumns.ID, mId);
+                note.put(NoteColumns.TYPE, mType);
+                note.put(NoteColumns.SNIPPET, mSnippet);
+                js.put(GTaskStringUtils.META_HEAD_NOTE, note);
+            }
+
+            return js;
+        } catch (JSONException e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    /**
+     * 设置笔记的父笔记ID
+     */
+    public void setParentId(long id) {
+        mParentId = id;
+        mDiffNoteValues.put(NoteColumns.PARENT_ID, id);
+    }
+
+    /**
+     * 设置 Google 任务的 ID
+     * @param gid Google 任务的 ID
+     */
+    public void setGtaskId(String gid) {
+        mDiffNoteValues.put(NoteColumns.GTASK_ID, gid);
+    }
+
+    /**
+     * 设置同步 ID
+     * @param syncId 同步 ID
+     */
+    public void setSyncId(long syncId) {
+        mDiffNoteValues.put(NoteColumns.SYNC_ID, syncId);
+    }
+
+    /**
+     * 重置本地修改标志
+     */
+    public void resetLocalModified() {
+        mDiffNoteValues.put(NoteColumns.LOCAL_MODIFIED, 0);
+    }
+
+    /**
+     * 获取笔记 ID
+     */
+    public long getId() {
+        return mId;
+    }
+
+    /**
+     * 获取父级笔记 ID*/
+    public long getParentId() {
+        return mParentId;
+    }
+
+    /**
+     * 获取笔记的片段内容
+     */
+    public String getSnippet() {
+        return mSnippet;
+    }
+
+    /**
+     * 判断笔记类型是否为普通笔记
+     */
+    public boolean isNoteType() {
+        return mType == Notes.TYPE_NOTE;
+    }
+    /**
+
+     提交当前Note的修改
+
+     @param validateVersion 是否需要验证版本信息
+     */
+    public void commit(boolean validateVersion) {
+        if (mIsCreate) {
+// 如果是新创建的Note，则先插入到数据库中
+            if (mId == INVALID_ID && mDiffNoteValues.containsKey(NoteColumns.ID)) {
+                mDiffNoteValues.remove(NoteColumns.ID);
+            } Uri uri = mContentResolver.insert(Notes.CONTENT_NOTE_URI, mDiffNoteValues);
+            try {
+                mId = Long.valueOf(uri.getPathSegments().get(1));
+            } catch (NumberFormatException e) {
+                Log.e(TAG, "Get note id error :" + e.toString());
+                throw new ActionFailureException("create note failed");
+            }
+            if (mId == 0) {
+                throw new IllegalStateException("Create thread id failed");
+            }
+
+            // 如果是Note类型，则提交其子数据的修改
+            if (mType == Notes.TYPE_NOTE) {
+                for (SqlData sqlData : mDataList) {
+                    sqlData.commit(mId, false, -1);
+                }
+            }
+        } else {
+// 如果是更新操作，则先检查ID是否合法
+            if (mId <= 0 && mId != Notes.ID_ROOT_FOLDER && mId != Notes.ID_CALL_RECORD_FOLDER) {
+                Log.e(TAG, "No such note");
+                throw new IllegalStateException("Try to update note with invalid id");
+            } // 如果有修改，则更新数据库中对应的记录
+            if (mDiffNoteValues.size() > 0) {
+                mVersion ++;
+                int result = 0;
+                if (!validateVersion) {
+                    result = mContentResolver.update(Notes.CONTENT_NOTE_URI, mDiffNoteValues, "("
+                            + NoteColumns.ID + "=?)", new String[] {
+                            String.valueOf(mId)
+                    });
+                } else {
+                    result = mContentResolver.update(Notes.CONTENT_NOTE_URI, mDiffNoteValues, "("
+                                    + NoteColumns.ID + "=?) AND (" + NoteColumns.VERSION + "<=?)",
+                            new String[] {
+                                    String.valueOf(mId), String.valueOf(mVersion)
+                            });
+                }
+                if (result == 0) {
+                    Log.w(TAG, "there is no update. maybe user updates note when syncing");
+                }
+            }
+
+            // 如果是Note类型，则提交其子数据的修改
+            if (mType == Notes.TYPE_NOTE) {
+                for (SqlData sqlData : mDataList) {
+                    sqlData.commit(mId, validateVersion, mVersion);
+                }
+            }
+        }
+
+// 刷新当前Note的信息
+        loadFromCursor(mId);
+        if (mType == Notes.TYPE_NOTE)
+            loadDataContent();
+
+        mDiffNoteValues.clear();
+        mIsCreate = false;
+    }

other/07_211540355吴梦阳_代码标注/data/Task.java

@@ -0,0 +1,462 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.gtask.data;
+
+import android.database.Cursor;
+import android.text.TextUtils;
+import android.util.Log;
+
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.DataConstants;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.gtask.exception.ActionFailureException;
+import net.micode.notes.tool.GTaskStringUtils;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+
+public class Task extends Node {
+    private static final String TAG = Task.class.getSimpleName();
+
+    private boolean mCompleted;
+
+    private String mNotes;
+
+    private JSONObject mMetaInfo;
+
+    private Task mPriorSibling;
+
+    private TaskList mParent;
+
+    /**
+     * 任务类，继承自BaseTask类
+     */
+    public class Task extends BaseTask {
+        private boolean mCompleted; // 任务是否已完成
+        private String mNotes; // 任务的笔记
+        private Task mPriorSibling; // 前一个任务
+        private TaskList mParent; // 父任务列表
+        private String mMetaInfo; // 元信息
+
+        /**
+         * 构造方法，初始化任务
+         */
+        public Task() {
+            super();
+            mCompleted = false;
+            mNotes = null;
+            mPriorSibling = null;
+            mParent = null;
+            mMetaInfo = null;
+        }
+
+        /**
+         * 生成创建任务的操作JSONObject对象
+         *
+         
+         */
+        public JSONObject getCreateAction(int actionId) {
+            JSONObject js = new JSONObject();
+
+            try {
+                // action_type
+                js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
+                        GTaskStringUtils.GTASK_JSON_ACTION_TYPE_CREATE);
+
+                // action_id
+                js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId);
+
+                // index
+                js.put(GTaskStringUtils.GTASK_JSON_INDEX, mParent.getChildTaskIndex(this));
+
+                // entity_delta
+                JSONObject entity = new JSONObject();
+                entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName());
+                entity.put(GTaskStringUtils.GTASK_JSON_CREATOR_ID, "null");
+                entity.put(GTaskStringUtils.GTASK_JSON_ENTITY_TYPE,
+                        GTaskStringUtils.GTASK_JSON_TYPE_TASK);
+                if (getNotes() != null) {
+                    entity.put(GTaskStringUtils.GTASK_JSON_NOTES, getNotes());
+                }
+                js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity);
+
+                // parent_id
+                js.put(GTaskStringUtils.GTASK_JSON_PARENT_ID, mParent.getGid());
+
+                // dest_parent_type
+                js.put(GTaskStringUtils.GTASK_JSON_DEST_PARENT_TYPE,
+                        GTaskStringUtils.GTASK_JSON_TYPE_GROUP);
+
+                // list_id
+                js.put(GTaskStringUtils.GTASK_JSON_LIST_ID, mParent.getGid());
+
+                // prior_sibling_id
+                if (mPriorSibling != null) {
+                    js.put(GTaskStringUtils.GTASK_JSON_PRIOR_SIBLING_ID, mPriorSibling.getGid());
+                }
+
+            } catch (JSONException e) {
+                Log.e(TAG, e.toString());
+                e.printStackTrace();
+                throw new ActionFailureException("fail to generate task-create jsonobject");
+            }
+
+            return js;
+        }
+    }
+
+    public JSONObject getUpdateAction(int actionId) {
+        JSONObject js = new JSONObject();
+
+        try {
+            // action_type
+            js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
+                    GTaskStringUtils.GTASK_JSON_ACTION_TYPE_UPDATE);
+
+            // action_id
+            js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId);
+
+            // id
+            js.put(GTaskStringUtils.GTASK_JSON_ID, getGid());
+
+            // entity_delta
+            JSONObject entity = new JSONObject();
+            entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName());
+            if (getNotes() != null) {
+                entity.put(GTaskStringUtils.GTASK_JSON_NOTES, getNotes());
+            }
+            entity.put(GTaskStringUtils.GTASK_JSON_DELETED, getDeleted());
+            js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity);
+
+        } catch (JSONException e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+            throw new ActionFailureException("fail to generate task-update jsonobject");
+        }
+
+        return js;
+    }
+
+    /**
+     * 从远程JSON对象设置任务内容
+     */
+    public void setContentByRemoteJSON(JSONObject js) {
+        if (js != null) {
+            try {
+                // id
+                if (js.has(GTaskStringUtils.GTASK_JSON_ID)) {
+                    setGid(js.getString(GTaskStringUtils.GTASK_JSON_ID));
+                }
+
+                // last_modified
+                if (js.has(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)) {
+                    setLastModified(js.getLong(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED));
+                }
+
+                // name
+                if (js.has(GTaskStringUtils.GTASK_JSON_NAME)) {
+                    setName(js.getString(GTaskStringUtils.GTASK_JSON_NAME));
+                }
+
+                // notes
+                if (js.has(GTaskStringUtils.GTASK_JSON_NOTES)) {
+                    setNotes(js.getString(GTaskStringUtils.GTASK_JSON_NOTES));
+                }
+
+                // deleted
+                if (js.has(GTaskStringUtils.GTASK_JSON_DELETED)) {
+                    setDeleted(js.getBoolean(GTaskStringUtils.GTASK_JSON_DELETED));
+                }
+
+                // completed
+                if (js.has(GTaskStringUtils.GTASK_JSON_COMPLETED)) {
+                    setCompleted(js.getBoolean(GTaskStringUtils.GTASK_JSON_COMPLETED));
+                }
+            } catch (JSONException e) {
+                Log.e(TAG, e.toString());
+                e.printStackTrace();
+                throw new ActionFailureException("从JSON对象获取任务内容失败");
+            }
+        }
+    }
+    /**
+     * 通过本地 JSON 设置内容
+     * */
+    public void setContentByLocalJSON(JSONObject js) {
+        // 如果 JSON 为空或缺少必要的头部信息，则无法设置内容
+        if (js == null || !js.has(GTaskStringUtils.META_HEAD_NOTE)
+                || !js.has(GTaskStringUtils.META_HEAD_DATA)) {
+            Log.w(TAG, "setContentByLocalJSON: nothing is avaiable");
+        }
+
+        try {
+            // 获取头部笔记信息和数据数组
+            JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
+            JSONArray dataArray = js.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
+
+            // 检查笔记类型是否为普通笔记
+            if (note.getInt(NoteColumns.TYPE) != Notes.TYPE_NOTE) {
+                Log.e(TAG, "invalid type");
+                return;
+            }
+
+            // 遍历数据数组，查找笔记数据
+            for (int i = 0; i < dataArray.length(); i++) {
+                JSONObject data = dataArray.getJSONObject(i);
+                // 如果数据的 MIME 类型为 "text/plain"，则设置为任务名称
+                if (TextUtils.equals(data.getString(DataColumns.MIME_TYPE), DataConstants.NOTE)) {
+                    setName(data.getString(DataColumns.CONTENT));
+                    break;
+                }
+            }
+
+        } catch (JSONException e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+        }
+    }
+    /**
+     * 从任务内容获取本地JSON对象
+     */
+    public JSONObject getLocalJSONFromContent() {
+        String name = getName();
+        try {
+            if (mMetaInfo == null) {
+                // 从Web创建的新任务
+                if (name == null) {
+                    Log.w(TAG, "the note seems to be an empty one");
+                    return null;
+                }
+
+                JSONObject js = new JSONObject();
+                JSONObject note = new JSONObject();
+                JSONArray dataArray = new JSONArray();
+                JSONObject data = new JSONObject();
+                data.put(DataColumns.CONTENT, name);
+                dataArray.put(data);
+                js.put(GTaskStringUtils.META_HEAD_DATA, dataArray);
+                note.put(NoteColumns.TYPE, Notes.TYPE_NOTE);
+                js.put(GTaskStringUtils.META_HEAD_NOTE, note);
+                return js;
+            } else {
+                // 同步的任务
+                JSONObject note = mMetaInfo.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
+                JSONArray dataArray = mMetaInfo.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
+
+                for (int i = 0; i < dataArray.length(); i++) {
+                    JSONObject data = dataArray.getJSONObject(i);
+                    if (TextUtils.equals(data.getString(DataColumns.MIME_TYPE), DataConstants.NOTE)) {
+                        data.put(DataColumns.CONTENT, getName());
+                        break;
+                    }
+                }
+
+                note.put(NoteColumns.TYPE, Notes.TYPE_NOTE);
+                return mMetaInfo;
+            }
+        } catch (JSONException e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    /**
+     * 设置笔记元信息。
+     */
+    public void setMetaInfo(MetaData metaData) {
+        if (metaData != null && metaData.getNotes() != null) {
+            try {
+                mMetaInfo = new JSONObject(metaData.getNotes());
+            } catch (JSONException e) {
+                Log.w(TAG, e.toString());
+                mMetaInfo = null;
+            }
+        }
+    }
+
+    /**
+     * 获取同步操作类型。
+     */
+    public int getSyncAction(Cursor c) {
+        try {
+            JSONObject noteInfo = null;
+            if (mMetaInfo != null && mMetaInfo.has(GTaskStringUtils.META_HEAD_NOTE)) {
+                noteInfo = mMetaInfo.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
+            }
+
+            if (noteInfo == null) {
+                Log.w(TAG, "it seems that note meta has been deleted");
+                return SYNC_ACTION_UPDATE_REMOTE;
+            }
+
+            if (!noteInfo.has(NoteColumns.ID)) {
+                Log.w(TAG, "remote note id seems to be deleted");
+                return SYNC_ACTION_UPDATE_LOCAL;
+            }
+
+            // validate the note id now
+            if (c.getLong(SqlNote.ID_COLUMN) != noteInfo.getLong(NoteColumns.ID)) {
+                Log.w(TAG, "note id doesn't match");
+                return SYNC_ACTION_UPDATE_LOCAL;
+            }
+
+            if (c.getInt(SqlNote.LOCAL_MODIFIED_COLUMN) == 0) {
+                // there is no local update
+                if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) {
+                    // no update both side
+                    return SYNC_ACTION_NONE;
+                } else {
+                    // apply remote to local
+                    return SYNC_ACTION_UPDATE_LOCAL;
+                }
+            } else {
+                // validate gtask id
+                if (!c.getString(SqlNote.GTASK_ID_COLUMN).equals(getGid())) {
+                    Log.e(TAG, "gtask id doesn't match");
+                    return SYNC_ACTION_ERROR;
+                }
+                if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) {
+                    // local modification only
+                    return SYNC_ACTION_UPDATE_REMOTE;
+                } else {
+                    return SYNC_ACTION_UPDATE_CONFLICT;
+                }
+            }
+        } catch (Exception e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+        }
+
+        return SYNC_ACTION_ERROR;
+    }
+
+    /**
+     * 任务类，表示一项任务
+     */
+    public class Task {
+
+        private String mName; // 任务名
+        private boolean mCompleted; // 是否完成
+        private String mNotes; // 任务笔记
+        private Task mPriorSibling; // 前一个同级任务
+        private TaskList mParent; // 父任务列表
+        private JSONObject mMetaInfo; // 元数据
+
+        /**
+         * 判断任务是否值得保存，有元数据、任务名或任务笔记任一不为空时认为值得保存
+         */
+        public boolean isWorthSaving() {
+            return mMetaInfo != null || (getName() != null && getName().trim().length() > 0)
+                    || (getNotes() != null && getNotes().trim().length() > 0);
+        }
+
+        /**
+         * 设置任务是否完成
+         */
+        public void setCompleted(boolean completed) {
+            this.mCompleted = completed;
+        }
+
+        /**
+         * 设置任务笔记
+         */
+        public void setNotes(String notes) {
+            this.mNotes = notes;
+        }
+
+        /**
+         * 设置前一个同级任务
+         */
+        public void setPriorSibling(Task priorSibling) {
+            this.mPriorSibling = priorSibling;
+        }
+
+        /**
+         * 设置父任务列表
+         */
+        public void setParent(TaskList parent) {
+            this.mParent = parent;
+        }
+
+        /**
+         * 获取任务名
+         */
+        public String getName() {
+            return this.mName;
+        }
+
+        /**
+         * 设置任务名
+         */
+        public void setName(String name) {
+            this.mName = name;
+        }
+
+        /**
+         * 获取任务是否完成
+         */
+        public boolean getCompleted() {
+            return this.mCompleted;
+        }
+
+        /**
+         * 获取任务笔记
+         */
+        public String getNotes() {
+            return this.mNotes;
+        }
+
+        /**
+         * 获取前一个同级任务
+         */
+        public Task getPriorSibling() {
+            return this.mPriorSibling;
+        }
+
+        /**
+         * 获取父任务列表
+         */
+        public TaskList getParent() {
+            return this.mParent;
+        }
+
+        /**
+         * 获取任务的元数据
+         */
+        public JSONObject getMetaInfo() {
+            return this.mMetaInfo;
+        }
+
+        /**
+         * 设置任务的元数据
+         */
+        public void setMetaInfo(MetaData metaData) {
+            if (metaData != null && metaData.getNotes() != null) {
+                try {
+                    mMetaInfo = new JSONObject(metaData.getNotes());
+                } catch (JSONException e) {
+                    Log.w(TAG, e.toString());
+                    mMetaInfo = null;
+                }
+            }
+        }
+
+    }

other/07_211540355吴梦阳_代码标注/data/TaskList.java

@@ -0,0 +1,343 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.gtask.data;
+
+import android.database.Cursor;
+import android.util.Log;
+
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.gtask.exception.ActionFailureException;
+import net.micode.notes.tool.GTaskStringUtils;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.util.ArrayList;
+
+
+public class TaskList extends Node {
+    private static final String TAG = TaskList.class.getSimpleName();
+
+    private int mIndex;
+
+    private ArrayList<Task> mChildren;
+
+    public TaskList() {
+        super();
+        mChildren = new ArrayList<Task>();
+        mIndex = 1;
+    }
+
+    public JSONObject getCreateAction(int actionId) {
+        JSONObject js = new JSONObject();
+
+        try {
+            // action_type
+            js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
+                    GTaskStringUtils.GTASK_JSON_ACTION_TYPE_CREATE);
+
+            // action_id
+            js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId);
+
+            // index
+            js.put(GTaskStringUtils.GTASK_JSON_INDEX, mIndex);
+
+            // entity_delta
+            JSONObject entity = new JSONObject();
+            entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName());
+            entity.put(GTaskStringUtils.GTASK_JSON_CREATOR_ID, "null");
+            entity.put(GTaskStringUtils.GTASK_JSON_ENTITY_TYPE,
+                    GTaskStringUtils.GTASK_JSON_TYPE_GROUP);
+            js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity);
+
+        } catch (JSONException e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+            throw new ActionFailureException("fail to generate tasklist-create jsonobject");
+        }
+
+        return js;
+    }
+
+    public JSONObject getUpdateAction(int actionId) {
+        JSONObject js = new JSONObject();
+
+        try {
+            // action_type
+            js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
+                    GTaskStringUtils.GTASK_JSON_ACTION_TYPE_UPDATE);
+
+            // action_id
+            js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId);
+
+            // id
+            js.put(GTaskStringUtils.GTASK_JSON_ID, getGid());
+
+            // entity_delta
+            JSONObject entity = new JSONObject();
+            entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName());
+            entity.put(GTaskStringUtils.GTASK_JSON_DELETED, getDeleted());
+            js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity);
+
+        } catch (JSONException e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+            throw new ActionFailureException("fail to generate tasklist-update jsonobject");
+        }
+
+        return js;
+    }
+
+    public void setContentByRemoteJSON(JSONObject js) {
+        if (js != null) {
+            try {
+                // id
+                if (js.has(GTaskStringUtils.GTASK_JSON_ID)) {
+                    setGid(js.getString(GTaskStringUtils.GTASK_JSON_ID));
+                }
+
+                // last_modified
+                if (js.has(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)) {
+                    setLastModified(js.getLong(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED));
+                }
+
+                // name
+                if (js.has(GTaskStringUtils.GTASK_JSON_NAME)) {
+                    setName(js.getString(GTaskStringUtils.GTASK_JSON_NAME));
+                }
+
+            } catch (JSONException e) {
+                Log.e(TAG, e.toString());
+                e.printStackTrace();
+                throw new ActionFailureException("fail to get tasklist content from jsonobject");
+            }
+        }
+    }
+
+    public void setContentByLocalJSON(JSONObject js) {
+        if (js == null || !js.has(GTaskStringUtils.META_HEAD_NOTE)) {
+            Log.w(TAG, "setContentByLocalJSON: nothing is avaiable");
+        }
+
+        try {
+            JSONObject folder = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
+
+            if (folder.getInt(NoteColumns.TYPE) == Notes.TYPE_FOLDER) {
+                String name = folder.getString(NoteColumns.SNIPPET);
+                setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX + name);
+            } else if (folder.getInt(NoteColumns.TYPE) == Notes.TYPE_SYSTEM) {
+                if (folder.getLong(NoteColumns.ID) == Notes.ID_ROOT_FOLDER)
+                    setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_DEFAULT);
+                else if (folder.getLong(NoteColumns.ID) == Notes.ID_CALL_RECORD_FOLDER)
+                    setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX
+                            + GTaskStringUtils.FOLDER_CALL_NOTE);
+                else
+                    Log.e(TAG, "invalid system folder");
+            } else {
+                Log.e(TAG, "error type");
+            }
+        } catch (JSONException e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+        }
+    }
+
+    public JSONObject getLocalJSONFromContent() {
+        try {
+            JSONObject js = new JSONObject();
+            JSONObject folder = new JSONObject();
+
+            String folderName = getName();
+            if (getName().startsWith(GTaskStringUtils.MIUI_FOLDER_PREFFIX))
+                folderName = folderName.substring(GTaskStringUtils.MIUI_FOLDER_PREFFIX.length(),
+                        folderName.length());
+            folder.put(NoteColumns.SNIPPET, folderName);
+            if (folderName.equals(GTaskStringUtils.FOLDER_DEFAULT)
+                    || folderName.equals(GTaskStringUtils.FOLDER_CALL_NOTE))
+                folder.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
+            else
+                folder.put(NoteColumns.TYPE, Notes.TYPE_FOLDER);
+
+            js.put(GTaskStringUtils.META_HEAD_NOTE, folder);
+
+            return js;
+        } catch (JSONException e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    public int getSyncAction(Cursor c) {
+        try {
+            if (c.getInt(SqlNote.LOCAL_MODIFIED_COLUMN) == 0) {
+                // there is no local update
+                if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) {
+                    // no update both side
+                    return SYNC_ACTION_NONE;
+                } else {
+                    // apply remote to local
+                    return SYNC_ACTION_UPDATE_LOCAL;
+                }
+            } else {
+                // validate gtask id
+                if (!c.getString(SqlNote.GTASK_ID_COLUMN).equals(getGid())) {
+                    Log.e(TAG, "gtask id doesn't match");
+                    return SYNC_ACTION_ERROR;
+                }
+                if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) {
+                    // local modification only
+                    return SYNC_ACTION_UPDATE_REMOTE;
+                } else {
+                    // for folder conflicts, just apply local modification
+                    return SYNC_ACTION_UPDATE_REMOTE;
+                }
+            }
+        } catch (Exception e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+        }
+
+        return SYNC_ACTION_ERROR;
+    }
+
+    public int getChildTaskCount() {
+        return mChildren.size();
+    }
+
+    public boolean addChildTask(Task task) {
+        boolean ret = false;
+        if (task != null && !mChildren.contains(task)) {
+            ret = mChildren.add(task);
+            if (ret) {
+                // need to set prior sibling and parent
+                task.setPriorSibling(mChildren.isEmpty() ? null : mChildren
+                        .get(mChildren.size() - 1));
+                task.setParent(this);
+            }
+        }
+        return ret;
+    }
+
+    public boolean addChildTask(Task task, int index) {
+        if (index < 0 || index > mChildren.size()) {
+            Log.e(TAG, "add child task: invalid index");
+            return false;
+        }
+
+        int pos = mChildren.indexOf(task);
+        if (task != null && pos == -1) {
+            mChildren.add(index, task);
+
+            // update the task list
+            Task preTask = null;
+            Task afterTask = null;
+            if (index != 0)
+                preTask = mChildren.get(index - 1);
+            if (index != mChildren.size() - 1)
+                afterTask = mChildren.get(index + 1);
+
+            task.setPriorSibling(preTask);
+            if (afterTask != null)
+                afterTask.setPriorSibling(task);
+        }
+
+        return true;
+    }
+
+    public boolean removeChildTask(Task task) {
+        boolean ret = false;
+        int index = mChildren.indexOf(task);
+        if (index != -1) {
+            ret = mChildren.remove(task);
+
+            if (ret) {
+                // reset prior sibling and parent
+                task.setPriorSibling(null);
+                task.setParent(null);
+
+                // update the task list
+                if (index != mChildren.size()) {
+                    mChildren.get(index).setPriorSibling(
+                            index == 0 ? null : mChildren.get(index - 1));
+                }
+            }
+        }
+        return ret;
+    }
+
+    public boolean moveChildTask(Task task, int index) {
+
+        if (index < 0 || index >= mChildren.size()) {
+            Log.e(TAG, "move child task: invalid index");
+            return false;
+        }
+
+        int pos = mChildren.indexOf(task);
+        if (pos == -1) {
+            Log.e(TAG, "move child task: the task should in the list");
+            return false;
+        }
+
+        if (pos == index)
+            return true;
+        return (removeChildTask(task) && addChildTask(task, index));
+    }
+
+    public Task findChildTaskByGid(String gid) {
+        for (int i = 0; i < mChildren.size(); i++) {
+            Task t = mChildren.get(i);
+            if (t.getGid().equals(gid)) {
+                return t;
+            }
+        }
+        return null;
+    }
+
+    public int getChildTaskIndex(Task task) {
+        return mChildren.indexOf(task);
+    }
+
+    public Task getChildTaskByIndex(int index) {
+        if (index < 0 || index >= mChildren.size()) {
+            Log.e(TAG, "getTaskByIndex: invalid index");
+            return null;
+        }
+        return mChildren.get(index);
+    }
+
+    public Task getChilTaskByGid(String gid) {
+        for (Task task : mChildren) {
+            if (task.getGid().equals(gid))
+                return task;
+        }
+        return null;
+    }
+
+    public ArrayList<Task> getChildTaskList() {
+        return this.mChildren;
+    }
+
+    public void setIndex(int index) {
+        this.mIndex = index;
+    }
+
+    public int getIndex() {
+        return this.mIndex;
+    }
+}