diff --git a/许超雨/model/Note.java b/许超雨/model/Note.java
new file mode 100644
index 0000000..a0e070d
--- /dev/null
+++ b/许超雨/model/Note.java
@@ -0,0 +1,268 @@
+/*
+ * µ¥¸ö±ãÇ©Ïî
+* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.model;//°üÃû
+import android.content.ContentProviderOperation;//ÅúÁ¿µÄ¸üС¢²åÈ롢ɾ³ýÊý¾Ý
+import android.content.ContentProviderResult;//²Ù×÷½á¹û
+import android.content.ContentUris;//Ìí¼Ó»òÕßÐÞ¸ÄuriºóÃæµÄID
+import android.content.ContentValues;//´æ´¢»ù±¾Êý¾ÝÀàÐ͵ÄÊý¾Ý
+import android.content.Context;// »ñÈ¡µ÷ÓÃÄÚÈÝ
+import android.content.OperationApplicationException;//²Ù×÷Êý¾ÝÈÝ´í
+import android.net.Uri;//UriÏà¹Ø²Ù×÷£¬±êʶΨһµÄ×ÊÔ´
+import android.os.RemoteException;//Òì³£´¦Àí
+import android.util.Log;//Êä³öÈÕÖ¾£¬±ÈÈç˵³ö´í¡¢¾¯¸æµÈ
+
+import net.micode.notes.data.Notes;//СÃ×±ãǩһЩÊôÐԵIJÙ×÷
+import net.micode.notes.data.Notes.CallNote;//µ÷ÓòÙ×÷
+import net.micode.notes.data.Notes.DataColumns;//Êý¾ÝÀ¸
+import net.micode.notes.data.Notes.NoteColumns;//±Ê¼ÇÀ¸
+import net.micode.notes.data.Notes.TextNote;//²Ù×÷Çø
+
+import java.util.ArrayList;//µ¼ÈëJava,util,ArrayList
+
+
+public class Note {//¶¨ÒånoteÀ࣬´¦Àíµ¥¸ö±ãÇ©
+    private ContentValues mNoteDiffValues;//ÉùÃ÷Ò»¸öContentValues˽ÓбäÁ¿ContentValues£¬ÓÃÀ´´æ´¢noteÓëÉÏ´ÎÐ޸ĺóµÄ¸Ä¶¯
+    private NoteData mNoteData;//ÉùÃ÷Ò»¸ö˽ÓбäÁ¿NoteData£¬ÓÃÀ´¼Ç¼µ¥¸ö±ãÇ©µÄ»ù±¾ÐÅÏ¢
+    private static final String TAG = "Note";//ÉèÖÃÈí¼þ±êÇ©
+    /**
+     * 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
+    /*
+     *  ×÷ÓãºÎªÐ±ãÇ©ÔÚÊý¾Ý¿âÀï±ß´´½¨Ò»¸öеÄID
+     *  ʵÏÖ£º´´½¨Ò»¸öÄÚÈݼ¯ºÏ£¬´æÈë´´½¨±ãÇ©µÄʱ¼ä£¬×îºóÐ޸ĵÄʱ¼ä£¬ÔÙ¸ù¾Ýµ±Ç°±ãÇ©Ëù´¦µÄÉÏÏÂÎĺÍÎļþ¼ÐµÄID£¬´ÓÄÚÈݽâÎöÆ÷Öеõ½µÄ·¾¶uriÀïÃæ
+     *       »ñȡеıãÇ©µÄID¡£×îºóÅжÏIDÊÇ·ñºÏ·¨£¬È»ºó·µ»Ø
+     *  ²ÎÊý£º@context£º±ãÇ©Ëù´¦µÄÉÏÏÂÎÄ
+     *       @folderId£ºËù´¦µÄ±ãÇ©Îļþ¼ÐID
+     *       @return£ºÐ´´½¨±ãÇ©µÄID
+     */
+        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() {//¶¨ÒåÁ½¸ö±äÁ¿ÓÃÀ´´æ´¢±ãÇ©µÄÊý¾Ý£¬Ò»¸öÊÇ´æ´¢±ãÇ©ÊôÐÔ¡¢Ò»¸öÊÇ´æ´¢±ãÇ©ÄÚÈÝ
+        mNoteDiffValues = new ContentValues();
+        mNoteData = new NoteData();
+    }
+
+    public void setNoteValue(String key, String value) {
+    	/*
+         *  ×÷ÓãºÉèÖñãÇ©µÄÊôÐÔ
+         *  ʵÏÖ£ºÍ¨¹ý´«Èëkey£¬Ö¸¶¨Ð޸ıãÇ©µÄÊôÐÔ£»´«Èëvalue£¬Ö¸¶¨Ð޸ĵÄÖµ£¬Í¨¹ýÊôÐÔ¹ÜÀíÆ÷mNoteDiffValuesдÈë¡£×îºó£¬¸Ä±ä×îºóÐÞ¸Äʱ¼ä
+         *  ²ÎÊý£º@key£ºÒªÐ޸ĵÄÊôÐÔ
+         *       @value£ºÒªÐ޸ĵÄÖµ
+         */
+        mNoteDiffValues.put(key, value);
+        mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
+        mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
+    } 
+
+    public void setTextData(String key, String value) {//ÉèÖÃÊý¾Ý¿â±í¸ñµÄ±êÇ©Îı¾ÄÚÈݵÄÊý¾Ý
+        mNoteData.setTextData(key, value);
+    }
+
+    public void setTextDataId(long id) {//ÉèÖÃÎı¾Êý¾ÝµÄID
+        mNoteData.setTextDataId(id);
+    }
+
+    public long getTextDataId() {//»ñÈ¡Îı¾Êý¾ÝµÄID
+        return mNoteData.mTextDataId;
+    }
+
+    public void setCallDataId(long id) {//ÉèÖõ绰ºÅÂëÊý¾ÝµÄID
+        mNoteData.setCallDataId(id);
+    }
+
+    public void setCallData(String key, String value) {//ÉèÖõ绰ºÅÂëµÄÊý¾Ý
+        mNoteData.setCallData(key, value);
+    }
+
+    public boolean isLocalModified() {//ÅжϱãÇ©ÊÇ·ñ½øÐÐÁ˱¾µØÐÞ¸Ä
+        return mNoteDiffValues.size() > 0 || mNoteData.isLocalModified();
+    }
+
+    public boolean syncNote(Context context, long noteId) {//Åж϶ÔÐ޸ĹýµÄ±ãÇ©ÊÇ·ñ½øÐÐͬ²½
+        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;
+    }
+
+    private class NoteData {//¶¨ÒåÒ»¸ö»ù±¾µÄ±ãÇ©ÄÚÈݵÄÊý¾ÝÀ࣬Ö÷Òª°üº¬Îı¾Êý¾ÝºÍµç»°ºÅÂëÊý¾Ý
+        private long mTextDataId;//Îı¾Êý¾Ýid
+
+        private ContentValues mTextDataValues;//Îı¾Êý¾ÝÄÚÈÝ
+
+        private long mCallDataId;//µç»°ºÅÂëÊý¾ÝID
+
+        private ContentValues mCallDataValues;//µç»°ºÅÂëÊý¾ÝÄÚÈÝ
+
+        private static final String TAG = "NoteData";//ĬÈϹ¹Ô캯Êý
+
+        public NoteData() {//NoteDataµÄ¹¹Ô캯Êý£¬³õʼ»¯Ëĸö±äÁ¿
+            mTextDataValues = new ContentValues();
+            mCallDataValues = new ContentValues();
+            mTextDataId = 0;
+            mCallDataId = 0;
+        }
+
+        boolean isLocalModified() {//ÅжÏÊÇ·ñ±¾µØÐÞ¸Ä
+            return mTextDataValues.size() > 0 || mCallDataValues.size() > 0;
+        }
+
+        void setTextDataId(long id) {//ÉèÖÃÎı¾Êý¾ÝµÄID
+            if(id <= 0) {
+                throw new IllegalArgumentException("Text data id should larger than 0");
+            }
+            mTextDataId = id;
+        }
+
+        void setCallDataId(long id) {//ÉèÖõ绰ºÅÂë¶ÔÓ¦µÄid
+            if (id <= 0) {
+                throw new IllegalArgumentException("Call data id should larger than 0");
+            }
+            mCallDataId = id;
+        }
+
+        void setCallData(String key, String value) {//ÉèÖõ绰ºÅÂëÊý¾ÝÄÚÈÝ£¬²¢ÇÒ±£´æÐÞ¸Äʱ¼ä
+            mCallDataValues.put(key, value);
+            mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
+            mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
+        }
+
+        void setTextData(String key, String value) {//ÉèÖÃÎı¾Êý¾Ý
+            mTextDataValues.put(key, value);
+            mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
+            mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
+        }
+
+        Uri pushIntoContentResolver(Context context, long noteId) {//ʹÓÃuri½«Êý¾ÝÌí¼Óµ½Êý¾Ý¿â
+            /**
+             * Check for safety
+             */
+            if (noteId <= 0) {//ÅжÏÊý¾ÝÊÇ·ñºÏ·¨
+                throw new IllegalArgumentException("Wrong note id:" + noteId);
+            }
+
+            ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
+            ContentProviderOperation.Builder builder = null;
+
+            if(mTextDataValues.size() > 0) {//°ÑÎı¾Êý¾Ý´æÈëDataColumns
+                mTextDataValues.put(DataColumns.NOTE_ID, noteId);
+                if (mTextDataId == 0) {//Îı¾Êý¾ÝIDΪÁ㣬Òâζ×ÅÕâ¸öidÊÇн¨Ä¬ÈϵÄid
+                    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) {//µç»°ºÅÂëͬ²½
+                mCallDataValues.put(DataColumns.NOTE_ID, noteId);
+                if (mCallDataId == 0) {//½«µç»°ºÅÂëµÄidÉ趨ΪuriÌṩµÄid
+                    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 {//µ±µç»°ºÅÂ벻Ϊн¨Ê±£¬¸üе绰ºÅÂëID
+                    builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId(
+                            Notes.CONTENT_DATA_URI, mCallDataId));
+                    builder.withValues(mCallDataValues);
+                    operationList.add(builder.build());
+                }
+                mCallDataValues.clear();
+            }
+
+            if (operationList.size() > 0) {//´æ´¢¹ý³ÌÖÐÈç¹ûÓöµ½Òì³££¬Í¨¹ýÈçϽøÐд¦Àí
+                try {//Å׳öÔ¶³ÌÒì³££¬²¢Ð´»ØÈÕÖ¾
+                    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) {//²¶×½²Ù×÷Òì³£²¢Ð´»ØÈÕÖ¾
+                    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()));//Òì³£ÈÕÖ¾
+                    return null;
+                }
+            }
+            return null;
+        }
+    }
+}
diff --git a/许超雨/model/WorkingNote.java b/许超雨/model/WorkingNote.java
new file mode 100644
index 0000000..f78e8b0
--- /dev/null
+++ b/许超雨/model/WorkingNote.java
@@ -0,0 +1,370 @@
+/*µ±Ç°»î¶¯±ãÇ©Ïî
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.model;//ÔÚmodel°üÖÐ
+
+import android.appwidget.AppWidgetManager;//ÐèÒªµ÷ÓõÄÆäËûÀà
+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 {/*ÉùÃ÷WorkingNoteÀà,´´½¨Ð¡Ã×±ãÇ©µÄÖ÷ÒªÀ࣬
+    °üÀ¨´´½¨¿Õ±ãÇ©£¬±£´æ±ãÇ©£¬¼ÓÔØСÃ×±ãÇ©ÄÚÈÝ£¬ºÍÉèÖÃСÃ×±ãÇ©µÄһЩС²¿¼þÖ®ÀàµÄ²Ù×÷*/
+    // 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[] {/*ÉùÃ÷NOTE_PROJECTION×Ö·û´®Êý×飬
+            ÓÃÓÚ´æ´¢Êý¾ÝÐÅÏ¢¡£*/
+            DataColumns.ID,
+            DataColumns.CONTENT,
+            DataColumns.MIME_TYPE,
+            DataColumns.DATA1,
+            DataColumns.DATA2,
+            DataColumns.DATA3,
+            DataColumns.DATA4,
+    };
+
+    public static final String[] NOTE_PROJECTION = new String[] {//±£´æ±ãÇ©ÊôÐÔÐÅÏ¢µÄstringÊý×é
+            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;//ÒÔ϶¨ÒåµÄÊÇÉÏÊöÁ½¸öÁбíÖи÷ÔªËصÄË÷Òý
+
+    private static final int DATA_CONTENT_COLUMN = 1;
+
+    private static final int DATA_MIME_TYPE_COLUMN = 2;
+
+    private static final int DATA_MODE_COLUMN = 3;
+
+    private static final int NOTE_PARENT_ID_COLUMN = 0;
+
+    private static final int NOTE_ALERTED_DATE_COLUMN = 1;
+
+    private static final int NOTE_BG_COLOR_ID_COLUMN = 2;
+
+    private static final int NOTE_WIDGET_ID_COLUMN = 3;
+
+    private static final int NOTE_WIDGET_TYPE_COLUMN = 4;
+
+    private static final int NOTE_MODIFIED_DATE_COLUMN = 5;
+
+    // New note construct
+    private WorkingNote(Context context, long folderId) {//³õʼ»¯WorkingNoteÀàµÄÄÚ²¿Êý¾Ý±äÁ¿
+        mContext = context;
+        mAlertDate = 0;
+        mModifiedDate = System.currentTimeMillis();//»ñȡϵͳµ±Ç°Ê±¼äµÄ·½·¨£¬·µ»Øµ±Ç°Ê±¼ä
+        mFolderId = folderId;
+        mNote = new Note();//¼ÓÔØÒ»¸öÒÑ´æÔڵıãÇ©
+        mNoteId = 0;
+        mIsDeleted = false;
+        mMode = 0;
+        mWidgetType = Notes.TYPE_WIDGET_INVALIDE;//ĬÈÏÊDz»¿É¼û
+    }
+
+    // Existing note construct
+    private WorkingNote(Context context, long noteId, long folderId) {//ÔØÈë±ãÇ©
+        mContext = context;
+        mNoteId = noteId;
+        mFolderId = folderId;
+        mIsDeleted = false;
+        mNote = new Note();
+        loadNote();
+    }
+
+    private void loadNote() {//¼ÓÔØÒÑÓеıãÇ©
+        Cursor cursor = mContext.getContentResolver().query(
+                ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mNoteId), NOTE_PROJECTION, null,
+                null, null);
+
+        if (cursor != null) {
+            if (cursor.moveToFirst()) {
+                mFolderId = cursor.getLong(NOTE_PARENT_ID_COLUMN);
+                mBgColorId = cursor.getInt(NOTE_BG_COLOR_ID_COLUMN);
+                mWidgetId = cursor.getInt(NOTE_WIDGET_ID_COLUMN);
+                mWidgetType = cursor.getInt(NOTE_WIDGET_TYPE_COLUMN);
+                mAlertDate = cursor.getLong(NOTE_ALERTED_DATE_COLUMN);
+                mModifiedDate = cursor.getLong(NOTE_MODIFIED_DATE_COLUMN);
+            }
+            cursor.close();
+        } else {
+            Log.e(TAG, "No note with id:" + mNoteId);
+            throw new IllegalArgumentException("Unable to find note with id " + mNoteId);
+        }
+        loadNoteData();
+    }
+
+    private void loadNoteData() {//¼ÓÔرãÇ©Êý¾Ý
+        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) {//´´½¨Ò»¸ö¿Õ±ãÇ©
+        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) {//¼ÓÔØÒѾ­´´½¨µÄ±ãÇ©
+        return new WorkingNote(context, id, 0);
+    }
+
+    public synchronized boolean saveNote() {//±£´æ±ãÇ©£¬³É¹¦±£´æ·µ»Øtrue£¬·ñÔò·µ»Øfalse
+        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() {//²é¿´¸ÃnoteÊÇ·ñÒѾ­´æ·Åµ½Êý¾Ý¿âÖÐ
+        return mNoteId > 0;
+    }
+
+    private boolean isWorthSaving() {//ÅжÏÊÇ·ñÐèÒª±£´æ
+        if (mIsDeleted || (!existInDatabase() && TextUtils.isEmpty(mContent))
+                || (existInDatabase() && !mNote.isLocalModified())) {
+            return false;
+        } else {
+            return true;
+        }
+    }
+
+    public void setOnSettingStatusChangedListener(NoteSettingChangedListener l) {//ÉèÖÃ״̬¸Ä±äµÄ¼àÌýÆ÷
+        mNoteSettingStatusListener = l;
+    }
+
+    public void setAlertDate(long date, boolean set) {//ÉèÖÃÌáÐÑÈÕÆÚ
+        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) {//ÉèÖÃɾ³ý±êÖ¾
+        mIsDeleted = mark;
+        if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID
+                && mWidgetType != Notes.TYPE_WIDGET_INVALIDE && mNoteSettingStatusListener != null) {
+                mNoteSettingStatusListener.onWidgetChanged();
+        }
+    }
+
+    public void setBgColorId(int id) {//É趨±³¾°ÑÕÉ«
+        if (id != mBgColorId) {
+            mBgColorId = id;
+            if (mNoteSettingStatusListener != null) {
+                mNoteSettingStatusListener.onBackgroundColorChanged();
+            }
+            mNote.setNoteValue(NoteColumns.BG_COLOR_ID, String.valueOf(id));
+        }
+    }
+
+    public void setCheckListMode(int mode) {//ÉèÖüì²éÁбíģʽ
+        if (mMode != mode) {
+            if (mNoteSettingStatusListener != null) {
+                mNoteSettingStatusListener.onCheckListModeChanged(mMode, mode);
+            }
+            mMode = mode;
+            mNote.setTextData(TextNote.MODE, String.valueOf(mMode));
+        }
+    }
+
+    public void setWidgetType(int type) {//ÉèÖô°¿ÚÀàÐÍ
+        if (type != mWidgetType) {
+            mWidgetType = type;
+            mNote.setNoteValue(NoteColumns.WIDGET_TYPE, String.valueOf(mWidgetType));
+        }
+    }
+
+    public void setWidgetId(int id) {//ÉèÖô°¿Ú±àºÅ
+        if (id != mWidgetId) {
+            mWidgetId = id;
+            mNote.setNoteValue(NoteColumns.WIDGET_ID, String.valueOf(mWidgetId));
+        }
+    }
+
+    public void setWorkingText(String text) {//дÈëÎı¾ÄÚÈÝ
+        if (!TextUtils.equals(mContent, text)) {
+            mContent = text;
+            mNote.setTextData(DataColumns.CONTENT, mContent);
+        }
+    }
+
+    public void convertToCallNote(String phoneNumber, long callDate) {//ת»»³Éµç»°ÌáÐѵıãÇ©
+        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() {//¼ì²âÊÇ·ñÓÐʱÖÓÌáÐÑ£¬mAlertDate > 0·µ»ØÕ棬·ñÔò·µ»Ø¼Ù
+        return (mAlertDate > 0 ? true : false);
+    }
+
+    public String getContent() {//»ñÈ¡±ãÇ©ÄÚÈÝ
+        return mContent;
+    }
+
+    public long getAlertDate() {//»ñÈ¡ÌáÐÑʱ¼ä
+        return mAlertDate;
+    }
+
+    public long getModifiedDate() {//»ñÈ¡ÐÞ¸Äʱ¼ä
+        return mModifiedDate;
+    }
+
+    public int getBgColorResId() {//»ñÈ¡±³¾°ÑÕÉ«À´Ô´id
+        return NoteBgResources.getNoteBgResource(mBgColorId);
+    }
+
+    public int getBgColorId() {//»ñÈ¡±³¾°ÑÕÉ«id
+        return mBgColorId;
+    }
+
+    public int getTitleBgResId() {//»ñÈ¡±êÌâ±³¾°ÑÕÉ«×ÊÔ´µÄid
+        return NoteBgResources.getNoteTitleBgResource(mBgColorId);
+    }
+
+    public int getCheckListMode() {//»ñÈ¡Ç嵥ģʽ
+        return mMode;
+    }
+
+    public long getNoteId() {//»ñÈ¡±ãÇ©id
+        return mNoteId;
+    }
+
+    public long getFolderId() {//»ñÈ¡Îļþ¼Ðid
+        return mFolderId;
+    }
+
+    public int getWidgetId() {//»ñÈ¡´°¿Úid
+        return mWidgetId;
+    }
+
+    public int getWidgetType() {//¼àÌý¼ì²â±ãÇ©ÉèÖñ仯µÄ½Ó¿Ú
+        return mWidgetType;
+    }
+
+    public interface NoteSettingChangedListener {//¼àÌý±ãÇ©ÉèÖÃÊÇ·ñ¸Ä±ä
+        /**
+         * Called when the background color of current note has just changed
+         */
+        void onBackgroundColorChanged();//±³¾°ÑÕÉ«¸Ä±ä
+
+        /**
+         * Called when user set clock
+         */
+        void onClockAlertChanged(long date, boolean set);//ÌáÐÑʱ¼ä°´Å¥£¬¿É½øÐÐʱ¼äµÄ¸ü¸ÄºÍÌáÐѵĿª¹Ø
+
+        /**
+         * Call when user create note from widget
+         */
+        void onWidgetChanged();//´°¿Ú¸Ä±ä
+
+        /**
+         * 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);//±ãÇ©¼ì²éÁбíģʽ¸Ä±ä
+    }
+}
diff --git a/许超雨/ui/NotesListAdapter.java b/许超雨/ui/NotesListAdapter.java
new file mode 100644
index 0000000..fea3146
--- /dev/null
+++ b/许超雨/ui/NotesListAdapter.java
@@ -0,0 +1,184 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;//ÒýÈëtools°ü
+
+import android.content.Context;//µ¼Èë¸÷ÖÖÀà
+import android.database.Cursor;
+import android.util.Log;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.CursorAdapter;
+
+import net.micode.notes.data.Notes;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+
+
+public class NotesListAdapter extends CursorAdapter {//¼Ì³Ð×ÔCursorAdapter£¬ËüΪcursorºÍListViewÌṩÁËÁ¬½ÓµÄÇÅÁº¡£Òò´Ë£¬¸ÃÀàΪcursorºÍ±ãÇ©±à¼­ÌṩÁ˹µÍ¨ÇþµÀ
+    private static final String TAG = "NotesListAdapter";
+    private Context mContext;
+    private HashMap<Integer, Boolean> mSelectedIndex;
+    private int mNotesCount;
+    private boolean mChoiceMode;
+
+    public static class AppWidgetAttribute {//±íʾ×ÀÃæwidgetµÄÊôÐÔ£¬°üÀ¨±àºÅºÍÀàÐÍ
+        public int widgetId;
+        public int widgetType;
+    };
+
+    public NotesListAdapter(Context context) {//³õʼ»¯±ãÇ©Á´½Ó
+        super(context, null);
+        mSelectedIndex = new HashMap<Integer, Boolean>();
+        mContext = context;
+        mNotesCount = 0;
+    }
+
+    @Override
+    public View newView(Context context, Cursor cursor, ViewGroup parent) {//ÀûÓÃNotesListLtemÀà´´½¨Ð²¼¾Ö
+        return new NotesListItem(context);
+    }
+
+    @Override
+    public void bindView(View view, Context context, Cursor cursor) {//½«¹â±êÖ¸ÏòµÄÊý¾ÝÓë´´½¨µÄÊÓͼÀ¦°óÆðÀ´
+        if (view instanceof NotesListItem) {
+            NoteItemData itemData = new NoteItemData(context, cursor);
+            ((NotesListItem) view).bind(context, itemData, mChoiceMode,
+                    isSelectedItem(cursor.getPosition()));
+        }
+    }
+
+    public void setCheckedItem(final int position, final boolean checked) {//ÉèÖù´Ñ¡¿ò
+        mSelectedIndex.put(position, checked);
+        notifyDataSetChanged();
+    }
+
+    public boolean isInChoiceMode() {//ÅжÏÊÇ·ñ±»¹´Ñ¡
+        return mChoiceMode;
+    }
+
+    public void setChoiceMode(boolean mode) {//ÖØÖù´Ñ¡¿ò
+        mSelectedIndex.clear();
+        mChoiceMode = mode;
+    }
+
+    public void selectAll(boolean checked) {//ÉèÖÃÈ«²¿¹´Ñ¡
+        Cursor cursor = getCursor();
+        for (int i = 0; i < getCount(); i++) {
+            if (cursor.moveToPosition(i)) {
+                if (NoteItemData.getNoteType(cursor) == Notes.TYPE_NOTE) {
+                    setCheckedItem(i, checked);
+                }
+            }
+        }
+    }
+
+    public HashSet<Long> getSelectedItemIds() {// »ñÈ¡ÒѾ­±»¹´Ñ¡µÄÏîÄ¿µÄidºÅ¼ÓÈ뵽ɢÁбíitemSetÖÐ
+        HashSet<Long> itemSet = new HashSet<Long>();
+        for (Integer position : mSelectedIndex.keySet()) {
+            if (mSelectedIndex.get(position) == true) {
+                Long id = getItemId(position);
+                if (id == Notes.ID_ROOT_FOLDER) {
+                    Log.d(TAG, "Wrong item id, should not happen");
+                } else {
+                    itemSet.add(id);
+                }
+            }
+        }
+
+        return itemSet;
+    }
+
+    public HashSet<AppWidgetAttribute> getSelectedWidget() {//»ñÈ¡×ÀÃæ×é¼þÑ¡Ïî±í
+        HashSet<AppWidgetAttribute> itemSet = new HashSet<AppWidgetAttribute>();
+        for (Integer position : mSelectedIndex.keySet()) {//±éÀú±»Ñ¡ÖеÄÁбí
+            if (mSelectedIndex.get(position) == true) {
+                Cursor c = (Cursor) getItem(position);
+                if (c != null) {
+                    AppWidgetAttribute widget = new AppWidgetAttribute();
+                    NoteItemData item = new NoteItemData(mContext, c);
+                    widget.widgetId = item.getWidgetId();
+                    widget.widgetType = item.getWidgetType();
+                    itemSet.add(widget);
+                    /**
+                     * Don't close cursor here, only the adapter could close it
+                     */
+                } else {
+                    Log.e(TAG, "Invalid cursor");//ÉèÖñêÇ©£¬·Ç·¨µÄcursor
+                    return null;
+                }
+            }
+        }
+        return itemSet;
+    }
+
+    public int getSelectedCount() {//»ñÈ¡Ñ¡Ïî¸öÊý
+        Collection<Boolean> values = mSelectedIndex.values();//»ñÈ¡Ñ¡ÏîϱêµÄÖµ
+        if (null == values) {
+            return 0;
+        }
+        Iterator<Boolean> iter = values.iterator();//³õʼ»¯µþ¼ÓÆ÷
+        int count = 0;
+        while (iter.hasNext()) {
+            if (true == iter.next()) {
+                count++;
+            }
+        }
+        return count;
+    }
+
+    public boolean isAllSelected() {//ÅжÏÊÇ·ñÈ«Ñ¡
+        int checkedCount = getSelectedCount();
+        return (checkedCount != 0 && checkedCount == mNotesCount);
+    }
+
+    public boolean isSelectedItem(final int position) {//ÅжÏÊÇ·ñΪѡÏî±í
+        if (null == mSelectedIndex.get(position)) {
+            return false;
+        }
+        return mSelectedIndex.get(position);
+    }
+
+    @Override
+    protected void onContentChanged() {//ÔÚactivity·¢Éú±ä»¯Ê±£¬ÖØмÆËã±ãÇ©ÊýÁ¿
+        super.onContentChanged();
+        calcNotesCount();
+    }
+
+    @Override
+    public void changeCursor(Cursor cursor) {//¹â±ê±ä¶¯Ê±ÖØмÆËã±ãÇ©ÊýÁ¿
+        super.changeCursor(cursor);
+        calcNotesCount();
+    }
+
+    private void calcNotesCount() {//¼ÆË㵱ǰ½çÃæ±ãÇ©µÄÊýÁ¿
+        mNotesCount = 0;
+        for (int i = 0; i < getCount(); i++) {//±éÀúËùÓÐÊý¾Ý
+            Cursor c = (Cursor) getItem(i);
+            if (c != null) {//ÅжÏÓï¾ä£¬Èç¹û¹â±ê²»ÊÇnull£¬ÄÇô±ãµÃµ½ÐÅÏ¢£¬±ãÇ©ÊýÄ¿¼Ó1
+                if (NoteItemData.getNoteType(c) == Notes.TYPE_NOTE) {//ÈôÑ¡ÏîµÄÊý¾ÝÀàÐÍΪ±ãÇ©ÀàÐÍ£¬ÄÇô¼ÆÊý+1
+                    mNotesCount++;
+                }
+            } else {//ÉèÖÃΪÎÞЧµÄ¹â±ê
+                Log.e(TAG, "Invalid cursor");
+                return;
+            }
+        }
+    }
+}