diff --git a/src/标注_杜金洲/NoteEditActivity.java b/src/标注_杜金洲/NoteEditActivity.java
new file mode 100644
index 0000000..6be75a1
--- /dev/null
+++ b/src/标注_杜金洲/NoteEditActivity.java
@@ -0,0 +1,1048 @@
+/*
+ * 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,
+//-�̳�Activity�࣬�ӿ�3��������Java�޶��ؼ̳У�
+//������Ҫ����Ա�ǩ�ı༭ 
+        NoteSettingChangedListener, OnTextViewChangeListener {
+    private class HeadViewHolder {
+        public TextView tvModified;
+
+        public ImageView ivAlertIcon;
+
+        public TextView tvAlertDate;
+
+        public ImageView ibSetBgColor;
+    }
+//�̳���ϵͳ�ڲ�����ͼ����йص���
+
+    private static final Map<Integer, Integer> sBgSelectorBtnsMap = new HashMap<Integer, Integer>();
+    //map����һ���Ǽ������ͣ��ڶ�����ֵ�����ͣ�integer���� 
+	static {
+        sBgSelectorBtnsMap.put(R.id.iv_bg_yellow, ResourceParser.YELLOW);
+        //put() ������ָ���ļ�/ֵ�Բ��뵽 Map �С���ָ��ֵ��ָ��������
+        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);//��Դ������.�� 
+    }
+
+    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);
+    }//ͬ�� ����parser��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);
+    }//ͬ�� 
+
+    private static final String TAG = "NoteEditActivity";
+
+    private HeadViewHolder mNoteHeaderHolder;
+
+    private View mHeadViewPanel;//View��һ�������������ǿ�������������϶����Լ��Ŀؼ���View�����������û��������(Button��Textfields�ȵ�)�Ļ��ࡣ
+    //˽�л�һ���������mNoteBgColorSelector���Ա�����ɫ�IJ���
+    private View mFontSizeSelector;
+    //˽�л�һ���������mFontSizeSelector���Ա�ǩ����IJ���
+    private EditText mNoteEditor;
+    //�����༭�ؼ������ı�����
+    private View mNoteEditorPanel;
+    //˽�л�һ���������mNoteEditorPanel���ı��༭�Ŀ��ư�
+    public WorkingNote mWorkingNote;
+    //��ģ��WorkingNote�ij�ʼ��
+    private SharedPreferences mSharedPrefs;
+    //˽�л�SharedPreferences�����ݴ洢��ʽ
+    private int mFontSizeId;
+    //���ڲ�������Ĵ�С
+
+    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');//һ���� 
+    public static final String TAG_UNCHECKED = String.valueOf('\u25A1');//���������� 
+
+    private LinearLayout mEditTextList;
+//���Բ��֣�������ֻὫ���������Ŀؼ������Է������������С�
+    private String mUserQuery;
+    private Pattern mPattern;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        this.setContentView(R.layout.note_edit);
+        //�����ݿ�ķ��ʲ���
+        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
+     */
+     //���ڴ治��ʱ����ǰ�Ļ���ܱ�ɱ����һ������ɱ����������һ��ʱ�䣬�û���������������Ӧ�ûָ���ǰ��״̬
+    @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��������Ľ��� 
+            intent.putExtra(Intent.EXTRA_UID, savedInstanceState.getLong(Intent.EXTRA_UID));
+            if (!initActivityState(intent)) {
+                finish();
+                return;
+            }
+            Log.d(TAG, "Restoring from killed activity");
+        }//Ϊ��ֹ�ڴ治��ʱ�������ֹ����������һ�������ֳ��ĺ���
+    }
+
+    private boolean initActivityState(Intent intent) {
+        /**
+         * If the user specified the {@link Intent#ACTION_VIEW} but not provided with id,
+         * then jump to the NotesListActivity
+         */
+         //û���ṩid�� ����ת��NotesListActivity
+        mWorkingNote = null;
+        if (TextUtils.equals(Intent.ACTION_VIEW, intent.getAction())) {
+            long noteId = intent.getLongExtra(Intent.EXTRA_UID, 0);
+            mUserQuery = "";
+
+            /**
+             * Starting from the searched result
+             */
+             /*���������ֵ����ID�����û���ҵ�������ʾ����*/ 
+            if (intent.hasExtra(SearchManager.EXTRA_DATA_KEY)) {
+                noteId = Long.parseLong(intent.getStringExtra(SearchManager.EXTRA_DATA_KEY));
+                mUserQuery = intent.getStringExtra(SearchManager.USER_QUERY);
+            }
+
+            if (!DataUtils.visibleInNoteDatabase(getContentResolver(), noteId, Notes.TYPE_NOTE)) {
+                Intent jump = new Intent(this, NotesListActivity.class);
+                startActivity(jump);
+                showToast(R.string.error_note_not_exist);
+                finish();
+                return false;
+            } else {
+                mWorkingNote = WorkingNote.load(this, noteId);
+                if (mWorkingNote == null) {
+                    Log.e(TAG, "load note failed with note id" + noteId);
+                    finish();
+                    return false;
+                }
+            }
+            getWindow().setSoftInputMode(
+                    WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN
+                            | WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
+                            //|��OR���������һ��λ������1Ϊ1��ȫ0Ϊ0
+        } else if(TextUtils.equals(Intent.ACTION_INSERT_OR_EDIT, intent.getAction())) {
+            // intent.getAction()��ͨ�� getAction�õ����ַ�������������ʲô 
+            long folderId = intent.getLongExtra(Notes.INTENT_EXTRA_FOLDER_ID, 0);
+            int widgetId = intent.getIntExtra(Notes.INTENT_EXTRA_WIDGET_ID,
+                    AppWidgetManager.INVALID_APPWIDGET_ID);
+            int widgetType = intent.getIntExtra(Notes.INTENT_EXTRA_WIDGET_TYPE,
+                    Notes.TYPE_WIDGET_INVALIDE);
+            int bgResId = intent.getIntExtra(Notes.INTENT_EXTRA_BACKGROUND_ID,
+                    ResourceParser.getDefaultBgId(this));
+
+            // Parse call-record note
+            String phoneNumber = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
+            long callDate = intent.getLongExtra(Notes.INTENT_EXTRA_CALL_DATE, 0);
+            if (callDate != 0 && phoneNumber != null) {
+                if (TextUtils.isEmpty(phoneNumber)) {
+                    Log.w(TAG, "The call record number is null");
+                }
+                long noteId = 0;
+                if ((noteId = DataUtils.getNoteIdByPhoneNumberAndCallDate(getContentResolver(),
+                        phoneNumber, callDate)) > 0) {
+                    mWorkingNote = WorkingNote.load(this, noteId);
+                    if (mWorkingNote == null) {
+                        Log.e(TAG, "load call note failed with note id" + noteId);
+                        finish();
+                        return false;
+                    }
+                    //���绰�������ֻ��ĺ��벾��أ� ��mWorkingNote == nullʱ������ʧ�ܣ�����ʹ���һ���µ�mworkingnote 
+                } else {
+                    mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId,
+                            widgetType, bgResId);
+                    mWorkingNote.convertToCallNote(phoneNumber, callDate);
+                }
+            } else {
+                mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId, widgetType,
+                        bgResId);
+            }
+
+            getWindow().setSoftInputMode(
+                    WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE
+                            | WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
+        } else {
+            Log.e(TAG, "Intent not specified action, should not support");
+            finish();
+            return false;
+        }
+        mWorkingNote.setOnSettingStatusChangedListener(this);
+        return true;
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        initNoteScreen();
+    }
+//�Խ���ij�ʼ������,������۵� 
+    private void initNoteScreen() {
+        mNoteEditor.setTextAppearance(this, TextAppearanceResources
+                .getTexAppearanceResource(mFontSizeId));
+        if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {
+            switchToListMode(mWorkingNote.getContent());
+        } else {
+            mNoteEditor.setText(getHighlightQueryResult(mWorkingNote.getContent(), mUserQuery));
+            mNoteEditor.setSelection(mNoteEditor.getText().length());
+        }
+        for (Integer id : sBgSelectorSelectionMap.keySet()) {
+            findViewById(sBgSelectorSelectionMap.get(id)).setVisibility(View.GONE);
+        }
+        mHeadViewPanel.setBackgroundResource(mWorkingNote.getTitleBgResId());
+        mNoteEditorPanel.setBackgroundResource(mWorkingNote.getBgColorResId());
+
+        mNoteHeaderHolder.tvModified.setText(DateUtils.formatDateTime(this,
+                mWorkingNote.getModifiedDate(), DateUtils.FORMAT_SHOW_DATE
+                        | DateUtils.FORMAT_NUMERIC_DATE | DateUtils.FORMAT_SHOW_TIME
+                        | DateUtils.FORMAT_SHOW_YEAR));
+
+        /**
+         * TODO: Add the menu for setting alert. Currently disable it because the DateTimePicker
+         * is not ready
+         */
+		 //�����������ӵIJ˵���Ŀǰ����������ΪDateTimePicker��û��׼����
+        showAlertHeader();
+    }
+
+    private void showAlertHeader() {
+        if (mWorkingNote.hasClockAlert()) {
+            long time = System.currentTimeMillis();
+            if (time > mWorkingNote.getAlertDate()) {
+                mNoteHeaderHolder.tvAlertDate.setText(R.string.note_alert_expired);
+            } 
+			//ϵͳʱ���������ʱ�䣬����ʧЧ�����ڴ��뽡׳�Կ��ǵ� 
+			else {
+                mNoteHeaderHolder.tvAlertDate.setText(DateUtils.getRelativeTimeSpanString(
+                        mWorkingNote.getAlertDate(), time, DateUtils.MINUTE_IN_MILLIS));
+            }
+            mNoteHeaderHolder.tvAlertDate.setVisibility(View.VISIBLE);
+            mNoteHeaderHolder.ivAlertIcon.setVisibility(View.VISIBLE);
+        } else {
+            mNoteHeaderHolder.tvAlertDate.setVisibility(View.GONE);
+            mNoteHeaderHolder.ivAlertIcon.setVisibility(View.GONE);
+        };//���ӿ�����ͼ�� 
+    }
+
+    @Override
+    protected void onNewIntent(Intent intent) {
+        super.onNewIntent(intent);
+        initActivityState(intent);
+    }
+
+    @Override
+    protected void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+        /**
+         * For new note without note id, we should firstly save it to
+         * generate a id. If the editing note is not worth saving, there
+         * is no id which is equivalent to create new note
+         */
+         /*����û�бʼ�ID���±ʼǣ�����Ӧ�����ȱ�����������һ��ID������༭�ıʼDz�ֵ�ñ��棬
+		 ����൱�ڴ���yһ��û��ID�µıʼ�*/
+        if (!mWorkingNote.existInDatabase()) {
+            saveNote();
+        }
+        outState.putLong(Intent.EXTRA_UID, mWorkingNote.getNoteId());
+        Log.d(TAG, "Save working note id: " + mWorkingNote.getNoteId() + " onSaveInstanceState");
+    }
+		//�ڴ���һ���µı�ǩʱ���������ݿ���ƥ��
+        //��������ڣ���ô�������ݿ��д洢
+    @Override
+     //MotionEvent�Ƕ���Ļ���صĴ��ݻ���
+    public boolean dispatchTouchEvent(MotionEvent ev) {
+        if (mNoteBgColorSelector.getVisibility() == View.VISIBLE
+                && !inRangeOfView(mNoteBgColorSelector, ev)) {
+            mNoteBgColorSelector.setVisibility(View.GONE);
+            return true;
+        }//��ɫѡ��������Ļ�Ͽɼ�
+
+
+        if (mFontSizeSelector.getVisibility() == View.VISIBLE
+                && !inRangeOfView(mFontSizeSelector, ev)) {
+            mFontSizeSelector.setVisibility(View.GONE);
+            return true;
+        }//�����Сѡ��������Ļ�Ͽɼ�
+        return super.dispatchTouchEvent(ev);
+    }
+//����Ļ���ص�������в���
+    private boolean inRangeOfView(View view, MotionEvent ev) {
+        int []location = new int[2];
+        view.getLocationOnScreen(location);
+        int x = location[0];
+        int y = location[1];
+        if (ev.getX() < x
+                || ev.getX() > (x + view.getWidth())
+                || ev.getY() < y
+                || ev.getY() > (y + view.getHeight())) {
+                    return false;
+                }
+        return true;
+    }
+//������ص�λ�ó����˸����ķ�Χ������false
+    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);
+        }//�Ա�ǩ�����������ݵij�ʼ��
+
+        mFontSizeSelector = findViewById(R.id.font_size_selector);
+        for (int id : sFontSizeBtnsMap.keySet()) {
+            View view = findViewById(id);
+            view.setOnClickListener(this);
+        };//ѡ�������С 
+        mSharedPrefs = PreferenceManager.getDefaultSharedPreferences(this);
+        mFontSizeId = mSharedPrefs.getInt(PREFERENCE_FONT_SIZE, ResourceParser.BG_DEFAULT_FONT_SIZE);
+        /**
+         * HACKME: Fix bug of store the resource id in shared preference.
+         * The id may larger than the length of resources, in this case,
+         * return the {@link ResourceParser#BG_DEFAULT_FONT_SIZE}
+         */
+         //�ƺ���һ���޸�id������bug 
+        if(mFontSizeId >= TextAppearanceResources.getResourcesSize()) {
+            mFontSizeId = ResourceParser.BG_DEFAULT_FONT_SIZE;
+        }
+        mEditTextList = (LinearLayout) findViewById(R.id.note_edit_list);
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        if(saveNote()) {
+            Log.d(TAG, "Note data was saved with length:" + mWorkingNote.getContent().length());
+        }
+        clearSettingState();
+    }
+    //������С���ߵ�ͬ��
+
+    private void updateWidget() {
+        Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
+        if (mWorkingNote.getWidgetType() == Notes.TYPE_WIDGET_2X) {
+            intent.setClass(this, NoteWidgetProvider_2x.class);
+        } else if (mWorkingNote.getWidgetType() == Notes.TYPE_WIDGET_4X) {
+            intent.setClass(this, NoteWidgetProvider_4x.class);
+        } else {
+            Log.e(TAG, "Unspported widget type");
+            return;
+        }
+
+        intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[] {
+            mWorkingNote.getWidgetId()
+        });
+
+        sendBroadcast(intent);
+        setResult(RESULT_OK, intent);
+    }
+
+    public void onClick(View v) {
+        int id = v.getId();
+        if (id == R.id.btn_set_bg_color) {
+            mNoteBgColorSelector.setVisibility(View.VISIBLE);
+            findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility(
+                    -                    View.VISIBLE);
+        } else if (sBgSelectorBtnsMap.containsKey(id)) {
+            findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility(
+                    View.GONE);
+            mWorkingNote.setBgColorId(sBgSelectorBtnsMap.get(id));
+            mNoteBgColorSelector.setVisibility(View.GONE);
+        } else if (sFontSizeBtnsMap.containsKey(id)) {
+            findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.GONE);
+            mFontSizeId = sFontSizeBtnsMap.get(id);
+            mSharedPrefs.edit().putInt(PREFERENCE_FONT_SIZE, mFontSizeId).commit();
+            findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.VISIBLE);
+            if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {
+                getWorkingText();
+                switchToListMode(mWorkingNote.getContent());
+            } else {
+                mNoteEditor.setTextAppearance(this,
+                        TextAppearanceResources.getTexAppearanceResource(mFontSizeId));
+            }
+            mFontSizeSelector.setVisibility(View.GONE);
+        }
+    }
+
+    @Override
+    public void onBackPressed() {
+        if(clearSettingState()) {
+            return;
+        }
+
+        saveNote();
+        super.onBackPressed();
+    }
+
+    private boolean clearSettingState() {
+        if (mNoteBgColorSelector.getVisibility() == View.VISIBLE) {
+            mNoteBgColorSelector.setVisibility(View.GONE);
+            return true;
+        } else if (mFontSizeSelector.getVisibility() == View.VISIBLE) {
+            mFontSizeSelector.setVisibility(View.GONE);
+            return true;
+        }//�������״̬����ɫ����С������
+        return false;
+    }
+
+    //��ѡ��˵���׼��
+    public void onBackgroundColorChanged() {
+        findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility(
+                View.VISIBLE);
+        mNoteEditorPanel.setBackgroundResource(mWorkingNote.getBgColorResId());
+        mHeadViewPanel.setBackgroundResource(mWorkingNote.getTitleBgResId());
+    }
+
+    @Override
+    public boolean onPrepareOptionsMenu(Menu menu) {
+        if (isFinishing()) {
+            return true;
+        }
+        clearSettingState();
+        menu.clear();
+        if (mWorkingNote.getFolderId() == Notes.ID_CALL_RECORD_FOLDER) {
+            getMenuInflater().inflate(R.menu.call_note_edit, menu);
+            // MenuInflater������ʵ����MenuĿ¼�µ�Menu�����ļ���
+
+        } else {
+            getMenuInflater().inflate(R.menu.note_edit, menu);
+        }
+        if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {
+            menu.findItem(R.id.menu_list_mode).setTitle(R.string.menu_normal_mode);
+        } else {
+            menu.findItem(R.id.menu_list_mode).setTitle(R.string.menu_list_mode);
+        }
+        if (mWorkingNote.hasClockAlert()) {
+            menu.findItem(R.id.menu_alert).setVisible(false);
+        } else {
+            menu.findItem(R.id.menu_delete_remind).setVisible(false);
+        }
+        return true;
+    }
+
+    @Override
+    //�������ܣ���̬�ı�˵�ѡ������
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+        	//���ݲ˵���id���༭�����Ŀ
+            case R.id.menu_new_note:
+                createNewNote();
+                break;
+            case R.id.menu_delete:
+            	//������ɾ����ǩ 
+                AlertDialog.Builder builder = new AlertDialog.Builder(this);
+                 //��������ɾ�������ĶԻ���
+                builder.setTitle(getString(R.string.alert_title_delete));
+                // ���ñ�ǩ�ı���Ϊalert_title_delet
+                builder.setIcon(android.R.drawable.ic_dialog_alert);
+                //���öԻ���ͼ��
+                builder.setMessage(getString(R.string.alert_message_delete_note));
+                //���öԻ�������
+                builder.setPositiveButton(android.R.string.ok,
+                        new DialogInterface.OnClickListener() {
+                        	//��������������
+                            public void onClick(DialogInterface dialog, int which) {
+                            	//����������¼�
+                                deleteCurrentNote();
+                                //  ɾ����ǩ��ǩ
+                                finish();
+                            }
+                        });
+                builder.setNegativeButton(android.R.string.cancel, null);//����yes��no�İ�ť 
+                builder.show(); //��ʾ�Ի���
+                break;
+            case R.id.menu_font_size: //�����С�ı༭
+                mFontSizeSelector.setVisibility(View.VISIBLE);// ������ѡ������Ϊ�ɼ�
+                findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.VISIBLE);
+                break; // ͨ��id�ҵ���Ӧ�Ĵ�С
+            case R.id.menu_list_mode://ѡ���б�ģʽ
+                mWorkingNote.setCheckListMode(mWorkingNote.getCheckListMode() == 0 ?
+                        TextNote.MODE_CHECK_LIST : 0);
+                break;//�˵�����
+            case R.id.menu_share:
+                getWorkingText();
+                sendTo(this, mWorkingNote.getContent());
+                // ��sendto�����������ı����͵������ı�����
+                break;
+            case R.id.menu_send_to_desktop:
+                sendToDesktop();//���͵�����
+                break;
+            case R.id.menu_alert:
+                setReminder();//����������
+                break;
+            case R.id.menu_delete_remind:
+                mWorkingNote.setAlertDate(0, false);//ɾ����������
+                break;
+            default:
+                break;
+        }
+        return true;
+    }
+//�������ܣ������¼�������
+    private void setReminder() {
+        DateTimePickerDialog d = new DateTimePickerDialog(this, System.currentTimeMillis());
+         // �����޸�ʱ�����ڵĶԻ���
+        d.setOnDateTimeSetListener(new OnDateTimeSetListener() {
+            public void OnDateTimeSet(AlertDialog dialog, long date) {
+                mWorkingNote.setAlertDate(date	, true);
+            }
+        }); //����ʱ�����ڵļ�����
+        d.show();//��ʾ�Ի���
+    }
+
+    /**
+     * Share note to apps that support {@link Intent#ACTION_SEND} action
+     * and {@text/plain} type
+     */
+     //�������ܣ�������ǩ
+    private void sendTo(Context context, String info) {
+    	//����intent����ѡ��
+        Intent intent = new Intent(Intent.ACTION_SEND);
+        //����Ҫ���ݵı�ǩ��Ϣ����text�ļ���
+        intent.putExtra(Intent.EXTRA_TEXT, info);
+        //�༭������������
+        intent.setType("text/plain");
+         //��acti�������
+        context.startActivity(intent);
+    }
+//�������ܣ�����һ���µı�ǩ
+   private void createNewNote() {
+        // Firstly, save current editing notes
+    	//���浱ǰ��ǩ
+        saveNote();
+ 
+        // For safety, start a new NoteEditActivity
+        finish();
+        Intent intent = new Intent(this, NoteEditActivity.class);
+        //����������
+        intent.setAction(Intent.ACTION_INSERT_OR_EDIT);
+        //�û����Ϊ������༭
+        intent.putExtra(Notes.INTENT_EXTRA_FOLDER_ID, mWorkingNote.getFolderId());
+        //�����б�ǩ��id���ӵ�INTENT_EXTRA_FOLDER_ID�����
+        startActivity(intent);
+        //��ʼactivity������
+    }
+ 
+    /*
+     * �������ܣ�ɾ����ǰ��ǩ
+     * ����ʵ�֣�����ע��
+     */
+    private void deleteCurrentNote() {
+        if (mWorkingNote.existInDatabase()) {
+        	//���統ǰ���еı�ǩ�ڴ�������
+            HashSet<Long> ids = new HashSet<Long>();
+            long id = mWorkingNote.getNoteId();
+            if (id != Notes.ID_ROOT_FOLDER) {
+                ids.add(id);
+            //�������ͷ�ļ��н���һ��hash���ѱ�ǩid������
+            } else {
+                Log.d(TAG, "Wrong note id, should not happen");
+                //���򱨴�
+            }
+            if (!isSyncMode()) {
+            	//�ڷ�ͬ��ģʽ�����
+            	//ɾ������
+                if (!DataUtils.batchDeleteNotes(getContentResolver(), ids)) {
+                    Log.e(TAG, "Delete Note error");
+                }
+            } else {
+            	 //ͬ��ģʽ
+            	//�ƶ��������ļ��еIJ���
+                if (!DataUtils.batchMoveToFolder(getContentResolver(), ids, Notes.ID_TRASH_FOLER)) {
+                    Log.e(TAG, "Move notes to trash folder error, should not happens");
+                }
+            }
+        }
+        mWorkingNote.markDeleted(true);
+        //����Щ��ǩ��ɾ�������Ϊtrue
+    }
+ 
+    /*
+     * �������ܣ��ж��Ƿ�Ϊͬ��ģʽ
+     * ����ʵ�֣�ֱ�ӿ�NotesPreferenceActivity��ͬ�������Ƿ�Ϊ��
+     */
+    private boolean isSyncMode() {
+        return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0;
+    }
+ 
+    /*
+     * �������ܣ���������ʱ��
+     * ����ʵ�֣�����ע��
+     */
+    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()) {
+        	//���ȱ������еı�ǩ
+            saveNote();
+        }
+        if (mWorkingNote.getNoteId() > 0) {
+            Intent intent = new Intent(this, AlarmReceiver.class);
+            intent.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mWorkingNote.getNoteId()));
+            //���������еı�ǩ���ǽ���һ������������ǩid������uri��
+            PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0);
+            AlarmManager alarmManager = ((AlarmManager) getSystemService(ALARM_SERVICE));
+            //�������ѹ�����
+            showAlertHeader();
+            if(!set) {
+                alarmManager.cancel(pendingIntent);
+            } else {
+                alarmManager.set(AlarmManager.RTC_WAKEUP, date, pendingIntent);
+            }
+            //����û�������ʱ�䣬��ͨ�����ѹ���������һ����������
+        } else {
+            /**
+             * There is the condition that user has input nothing (the note is
+             * not worthy saving), we have no note id, remind the user that he
+             * should input something
+             */ 
+        	//û�����еı�ǩ�ͱ���
+            Log.e(TAG, "Clock alert setting error");
+            showToast(R.string.error_note_empty_for_clock);
+        }
+    }
+ 
+    /*
+     * �������ܣ�Widget�����ı�����������¼�
+     */
+    public void onWidgetChanged() {
+        updateWidget();//����Widget
+    }
+ 
+    /*
+     * �������ܣ� ɾ���༭�ı������������¼�
+     * ����ʵ�֣�����ע��
+     */
+    public void onEditTextDelete(int index, String text) {
+        int childCount = mEditTextList.getChildCount();
+        if (childCount == 1) {
+            return;
+        }
+        //û�б༭��Ļ�ֱ�ӷ���
+        for (int i = index + 1; i < childCount; i++) {
+            ((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text))
+                    .setIndex(i - 1);
+            //ͨ��id�ѱ༭����ڱ�ǩ�༭����
+        }
+ 
+        mEditTextList.removeViewAt(index);
+        //ɾ���ض�λ�õ���ͼ
+        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);
+        }
+        //ͨ��id�ѱ༭����ڿյ�NoteEditText��
+        int length = edit.length();
+        edit.append(text);
+        edit.requestFocus();//����������ɸô� �༭
+        edit.setSelection(length);//��λ��lengthλ�ô�����Ŀ
+    }
+ 
+    /*
+     * �������ܣ�����༭�ı������������¼�
+     * ����ʵ�֣�����ע��
+     */
+    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");
+            //Խ���żż
+        }
+ 
+        View view = getListItem(text, index);
+        mEditTextList.addView(view, index);
+        //����һ���µ���ͼ�����ӵ��༭�ı�����
+        NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text);
+        edit.requestFocus();//�������Ȳ���
+        edit.setSelection(0);//��λ����ʼλ��
+        for (int i = index + 1; i < mEditTextList.getChildCount(); i++) {
+            ((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text))
+                    .setIndex(i);
+            //�������ı������ö�Ӧ���±�
+        }
+    }
+ 
+    /*
+     * �������ܣ��л����б�ģʽ
+     * ����ʵ�֣�����ע��
+     */
+    private void switchToListMode(String text) {
+        mEditTextList.removeAllViews();
+        String[] items = text.split("\n");
+        int index = 0;
+        //���������ͼ����ʼ���±�
+        for (String item : items) {
+            if(!TextUtils.isEmpty(item)) {
+                mEditTextList.addView(getListItem(item, index));
+                index++;
+                //���������ı���Ԫ�����ӵ��ı�����
+            }
+        }
+        mEditTextList.addView(getListItem("", index));
+        mEditTextList.getChildAt(index).findViewById(R.id.et_edit_text).requestFocus();
+        //��������˲���
+ 
+        mNoteEditor.setVisibility(View.GONE);
+        //��ǩ�༭�����ɼ�
+        mEditTextList.setVisibility(View.VISIBLE);
+        //���ı��༭����Ϊ�ɼ�
+    }
+ 
+    /*
+     * �������ܣ���ȡ����Ч���ķ������
+     * ����ʵ�֣�����ע��
+     */
+    private Spannable getHighlightQueryResult(String fullText, String userQuery) {
+        SpannableString spannable = new SpannableString(fullText == null ? "" : fullText);
+        //�½�һ��Ч��ѡ��
+        if (!TextUtils.isEmpty(userQuery)) {
+            mPattern = Pattern.compile(userQuery);
+            //���û���ѯ�ʽ��н���
+            Matcher m = mPattern.matcher(fullText);
+            //����һ��״̬�����Pattern������ƥ��
+            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);
+                //���ñ�����ɫ
+                start = m.end();
+                //������ʼλ��
+            }
+        }
+        return spannable;
+    }
+ 
+    /*
+     * �������ܣ���ȡ�б���
+     * ����ʵ�֣�����ע��
+     */
+    private View getListItem(String item, int index) {
+        View view = LayoutInflater.from(this).inflate(R.layout.note_edit_list_item, null);
+        //����һ����ͼ
+        final NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text);
+        edit.setTextAppearance(this, TextAppearanceResources.getTexAppearanceResource(mFontSizeId));
+        //����һ���ı��༭�����ÿɼ���
+        CheckBox cb = ((CheckBox) view.findViewById(R.id.cb_edit_item));
+        cb.setOnCheckedChangeListener(new OnCheckedChangeListener() {
+            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
+                if (isChecked) {
+                    edit.setPaintFlags(edit.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);
+                } else {
+                    edit.setPaintFlags(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG);
+                }
+            }
+        });
+        //����һ���򹳿����ü�����
+ 
+        if (item.startsWith(TAG_CHECKED)) {
+        	//ѡ��ѡ
+            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)) {
+        	//ѡ�񲻹�ѡ
+            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));
+        //���б༭��ļ������Ը���Ϊ������Ӧ���������±꼰�ı�����
+        return view;
+    }
+ 
+    /*
+     * �������ܣ���ǩ���ݷ����ı��� �������¼�
+     * ����ʵ�֣�����ע��
+     */
+    public void onTextChange(int index, boolean hasText) {
+        if (index >= mEditTextList.getChildCount()) {
+            Log.e(TAG, "Wrong index, should not happen");
+            return;
+            //Խ�籨��
+        }
+        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);
+        }
+        //������ݲ�Ϊ�������ӱ༭��ɼ�����Ϊ�ɼ������򲻿ɼ�
+    }
+ 
+    /*
+     * �������ܣ����ģʽ���б�ģʽ���л�
+     * ����ʵ�֣�����ע��
+     */
+    public void onCheckListModeChanged(int oldMode, int newMode) {
+        if (newMode == TextNote.MODE_CHECK_LIST) {
+            switchToListMode(mNoteEditor.getText().toString());
+            //���ģʽ�л����б�ģʽ
+        } else {
+            if (!getWorkingText()) {
+                mWorkingNote.setWorkingText(mWorkingNote.getContent().replace(TAG_UNCHECKED + " ",
+                        ""));
+            }
+            //���ǻ�ȡ���ı��͸ı�������
+            mNoteEditor.setText(getHighlightQueryResult(mWorkingNote.getContent(), mUserQuery));
+            mEditTextList.setVisibility(View.GONE);
+            mNoteEditor.setVisibility(View.VISIBLE);
+            //�޸��ı��༭�������ݺͿɼ���
+        }
+    }
+ 
+    /*
+     * �������ܣ����ù�ѡѡ����������Ƿ�ѡ�ı��
+     * ����ʵ�֣�����ע��
+     */
+    private boolean getWorkingText() {
+        boolean hasChecked = false;
+        //��ʼ��check���
+        if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {
+        	// ��ģʽΪCHECK_LIST
+            StringBuilder sb = new StringBuilder();
+            //�����ɱ��ַ���
+            for (int i = 0; i < mEditTextList.getChildCount(); i++) {
+                View view = mEditTextList.getChildAt(i);
+                //���������ӱ༭�����ͼ 
+                NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text);
+                if (!TextUtils.isEmpty(edit.getText())) {
+                	//���ı���Ϊ��
+                    if (((CheckBox) view.findViewById(R.id.cb_edit_item)).isChecked()) {
+                    	//��ѡ����Ѵ�
+                        sb.append(TAG_CHECKED).append(" ").append(edit.getText()).append("\n");
+                        hasChecked = true;
+                        //��չ�ַ���Ϊ�Ѵ򹳲��ѱ����true
+                    } else {
+                        sb.append(TAG_UNCHECKED).append(" ").append(edit.getText()).append("\n");
+                        //��չ�ַ�������δ��
+                    }
+                }
+            }
+            mWorkingNote.setWorkingText(sb.toString());
+            //���ñ༭�õ��ַ����������б�ǩ������
+        } else {
+            mWorkingNote.setWorkingText(mNoteEditor.getText().toString());
+            // �����Ǹ�ģʽֱ���ñ༭���е��������������б�ǩ������
+        }
+        return hasChecked;
+    }
+ 
+    /*
+     * �������ܣ������ǩ
+     * ����ʵ�֣�����ע�� 
+     */
+    private boolean saveNote() {
+        getWorkingText();
+        boolean saved = mWorkingNote.saveNote();
+        //���� getWorkingText()֮�󱣴�
+        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
+             */
+        	//��Ӣ��ע����˵����RESULT_OK��Ϊ��ʶ�𱣴��2�������һ�Ǵ����󱣴棬�����޸ĺ󱣴�
+            setResult(RESULT_OK);
+        }
+        return saved;
+    }
+ 
+    /*
+     * �������ܣ�����ǩ����������
+     * ����ʵ�֣�����ע�� 
+     */
+    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();
+            //������������Ҳ�����µı�ǩ�ͱ���������
+        }
+ 
+        if (mWorkingNote.getNoteId() > 0) {
+        	//����������
+            Intent sender = new Intent();
+            Intent shortcutIntent = new Intent(this, NoteEditActivity.class);
+            //�������͵������������
+            shortcutIntent.setAction(Intent.ACTION_VIEW);
+            //����Ϊһ����ͼ
+            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);
+            //����ǩ�������Ϣ�����ӵ�Ҫ���͵��ļ���
+            sender.setAction("com.android.launcher.action.INSTALL_SHORTCUT");
+            //����sneder����Ϊ�Ƿ���
+            showToast(R.string.info_note_enter_desktop);
+            sendBroadcast(sender);
+            //��ʾ������
+        } else {
+            /**
+             * There is the condition that user has input nothing (the note is
+             * not worthy saving), we have no note id, remind the user that he
+             * should input something
+             */
+            Log.e(TAG, "Send to desktop error");
+            showToast(R.string.error_note_empty_for_send_to_desktop);
+            //�ձ�ǩֱ�ӱ���
+        }
+    }
+ 
+    /*
+     * �������ܣ��༭Сͼ��ı���
+     * ����ʵ�֣�����ע�� 
+     */
+    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;
+        //ֱ������Ϊcontent�е����ݲ����أ��й�ѡ��δ��ѡ2��
+    } 
+ 
+    /*
+     * �������ܣ���ʾ��ʾ����ͼ
+     * ����ʵ�֣������±���ʾ��Ӧ����ʾ
+     */
+    private void showToast(int resId) {
+        showToast(resId, Toast.LENGTH_SHORT);
+    }
+ 
+    /*
+     * �������ܣ�������ʾ��ʾ����ͼ
+     * ����ʵ�֣������±�ͳ�����ʱ�䣨duration���༭��ʾ��ͼ����ʾ
+     */
+    private void showToast(int resId, int duration) {
+        Toast.makeText(this, resId, duration).show();
+    }
+}
+
diff --git a/src/标注_杜金洲/NotesListItem.java b/src/标注_杜金洲/NotesListItem.java
new file mode 100644
index 0000000..05062c9
--- /dev/null
+++ b/src/标注_杜金洲/NotesListItem.java
@@ -0,0 +1,116 @@
+package net.micode.notes.ui;
+ 
+import android.content.Context;
+import android.text.format.DateUtils;
+import android.view.View;
+import android.widget.CheckBox;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+ 
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.tool.DataUtils;
+import net.micode.notes.tool.ResourceParser.NoteItemBgResources;
+ 
+ 
+//������ǩ�б���Ŀѡ��
+public class NotesListItem extends LinearLayout {
+    private ImageView mAlert;//����ͼƬ
+    private TextView mTitle;  //����
+    private TextView mTime;   //ʱ��
+    private TextView mCallName;    //
+    private NoteItemData mItemData; //��ǩ����
+    private CheckBox mCheckBox;    //�򹳿�
+ 
+    /*��ʼ��������Ϣ*/
+    public NotesListItem(Context context) {
+        super(context);   //super()������Ҫ�����ǵ������ø��๹�캯����˳��
+        inflate(context, R.layout.note_item, this);//Inflate�����ڽ�һ��xml�ж���IJ��ֿؼ��ҳ���,�����xml��r��layout
+        //findViewById���ڴ�contentView�в���ָ��ID��View��ת����������ʽ������Ҫ����;
+        mAlert = (ImageView) findViewById(R.id.iv_alert_icon);
+        mTitle = (TextView) findViewById(R.id.tv_title);
+        mTime = (TextView) findViewById(R.id.tv_time);
+        mCallName = (TextView) findViewById(R.id.tv_name);
+        mCheckBox = (CheckBox) findViewById(android.R.id.checkbox);
+    }
+  ///����data�����ԶԸ����ؼ������ԵĿ��ƣ���Ҫ�ǿɼ���Visibility������setText����ʽsetTextAppearance
+    public void bind(Context context, NoteItemData data, boolean choiceMode, boolean checked) {
+        if (choiceMode && data.getType() == Notes.TYPE_NOTE) {
+            mCheckBox.setVisibility(View.VISIBLE);  ///���ÿɼ���Ϊ�ɼ�
+            mCheckBox.setChecked(checked);         ///���Ӵ�
+        } else {
+            mCheckBox.setVisibility(View.GONE);
+        }
+ 
+        mItemData = data;
+        ///���ÿؼ����ԣ�һ�������������data��id�͸�id�Ƿ��뱣�浽�ļ��е�idһ��������
+        if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) {
+            mCallName.setVisibility(View.GONE);
+            mAlert.setVisibility(View.VISIBLE);
+            //���ø�textview��style
+            mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem);
+            //settext��������
+            mTitle.setText(context.getString(R.string.call_record_folder_name)
+                    + context.getString(R.string.format_folder_files_count, data.getNotesCount()));
+            mAlert.setImageResource(R.drawable.call_record);
+        } else if (data.getParentId() == Notes.ID_CALL_RECORD_FOLDER) {
+            mCallName.setVisibility(View.VISIBLE);
+            mCallName.setText(data.getCallName());
+            mTitle.setTextAppearance(context,R.style.TextAppearanceSecondaryItem);
+            mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet()));
+            ///�������ӵ�����
+            if (data.hasAlert()) {
+                mAlert.setImageResource(R.drawable.clock);//ͼƬ��Դ������
+                mAlert.setVisibility(View.VISIBLE);
+            } else {
+                mAlert.setVisibility(View.GONE);
+            }
+        } else {
+            mCallName.setVisibility(View.GONE);
+            mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem);
+            ///����title��ʽ
+            if (data.getType() == Notes.TYPE_FOLDER) {
+                mTitle.setText(data.getSnippet()
+                        + context.getString(R.string.format_folder_files_count,
+                                data.getNotesCount()));
+                mAlert.setVisibility(View.GONE);
+            } else {
+                mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet()));
+                if (data.hasAlert()) {
+                    mAlert.setImageResource(R.drawable.clock);///����ͼƬ��Դ
+                    mAlert.setVisibility(View.VISIBLE);
+                } else {
+                    mAlert.setVisibility(View.GONE);
+                }
+            }
+        }
+        ///�������ݣ���ȡ���ʱ�䣬��data��༭�������л�ȡ
+        mTime. setText(DateUtils.getRelativeTimeSpanString(data.getModifiedDate()));
+       
+        setBackground(data);
+    }
+    //����data���ļ����������ñ���
+    private void setBackground(NoteItemData data) {
+        int id = data.getBgColorId();
+        //������note���ļ�����4�����������4�ֲ�ͬ����ı�����Դ
+        if (data.getType() == Notes.TYPE_NOTE) {
+        	//�������ݲ���ֻ��һ�����ļ���
+            if (data.isSingle() || data.isOneFollowingFolder()) {
+                setBackgroundResource(NoteItemBgResources.getNoteBgSingleRes(id));
+            } else if (data.isLast()) {//�����һ������
+                setBackgroundResource(NoteItemBgResources.getNoteBgLastRes(id));
+            } else if (data.isFirst() || data.isMultiFollowingFolder()) {//��һ�����ݲ��ж�����ļ���
+                setBackgroundResource(NoteItemBgResources.getNoteBgFirstRes(id));
+            } else {
+                setBackgroundResource(NoteItemBgResources.getNoteBgNormalRes(id));
+            }
+        } else {
+        	//������noteֱ�ӵ����ļ��еı�����Դ
+            setBackgroundResource(NoteItemBgResources.getFolderBgRes());
+        }
+    }
+    public NoteItemData getItemData() {
+        return mItemData;
+    }
+}