lrz commit

src/net/micode/notes/ui/NotesListAdapter.java

@@ -1,19 +1,3 @@
-/*
- * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
 package net.micode.notes.ui;
 
 import android.content.Context;
@@ -31,67 +15,120 @@
 import java.util.HashSet;
 import java.util.Iterator;
 
-
+/**
+ * @Package:        net.micode.notes.ui
+ * @ClassName:      NotesListAdapter
+ * @Description:
+ * 直译为便签表连接器，继承了CursorAdapter，它为cursor和ListView提供了连接的桥梁。
+ * 所以NotesListAdapter实现的是鼠标和编辑便签链接的桥梁
+ * @Author:         
+ * @CreateDate:     12/23/2023 11:35 PM
+ * @Version:        1.0
+ */
 public class NotesListAdapter extends CursorAdapter {
     private static final String TAG = "NotesListAdapter";
     private Context mContext;
     private HashMap<Integer, Boolean> mSelectedIndex;
-     private int mNotesCount;   
-     private boolean mChoiceMode;   
+    private int mNotesCount;    //便签数
+    private boolean mChoiceMode;   //选择模式标记
 
+    /*
+     * 桌面widget的属性，包括编号和类型
+     */
     public static class AppWidgetAttribute {
         public int widgetId;
         public int widgetType;
     };
-  
-     
+    /**
+     * @method  NotesListAdapter
+     * @description
+     * 初始化便签链接器
+     * 函数实现：根据传进来的内容设置相关变量
+     * @date: 12/23/2023 11:35 PM
+     * 
+     * @param context
+     */
     public NotesListAdapter(Context context) {
-         super(context, null); 
-         mSelectedIndex = new HashMap<Integer, Boolean>();  
+        super(context, null);  //父类对象置空
+        mSelectedIndex = new HashMap<Integer, Boolean>();  //新建选项下标的hash表
         mContext = context;
         mNotesCount = 0;
     }
 
     @Override
- 
+    /**
+     * @method  newView
+     * @description
+     * 新建一个视图来存储光标所指向的数据
+     * 通过使用兄弟类NotesListItem新建一个项目选项
+     * @date: 12/23/2023 11:35 PM
+     * 
+     * @param [context, cursor, parent]
+     * @return android.view.View
+     */
     public View newView(Context context, Cursor cursor, ViewGroup parent) {
         return new NotesListItem(context);
     }
-  
- 
     @Override
+    /**
+     * @method  bindView
+     * @description 将已经存在的视图和鼠标指向的数据进行捆绑
+     * @date: 12/23/2023 11:41 PM
+     * 
+     * @param [view, context, cursor]
+     * @return void
+     */
     public void bindView(View view, Context context, Cursor cursor) {
         if (view instanceof NotesListItem) {
-
+            //若view是NotesListItem的一个实例
+            //则新建一个项目选项并且用bind跟将view和鼠标，内容，便签数据捆绑在一起
             NoteItemData itemData = new NoteItemData(context, cursor);
             ((NotesListItem) view).bind(context, itemData, mChoiceMode,
                     isSelectedItem(cursor.getPosition()));
-
         }
     }
-  
-
+    /**
+     * @method  setCheckedItem
+     * @description 设置勾选框
+     * @date: 12/23/2023 11:41 PM
+     * 
+     * @param  checked
+     * @param position
+     * @return void
+     */
     public void setCheckedItem(final int position, final boolean checked) {
         mSelectedIndex.put(position, checked);
-
+        //根据定位和是否勾选设置下标
         notifyDataSetChanged();
-
+        //在修改后刷新activity
     }
 
-
     public boolean isInChoiceMode() {
         return mChoiceMode;
-     }
-  
+    }//判断单选按钮是否勾选
 
+    /**
+     * @method  setChoiceMode
+     * @description 设置单项选项框
+     * @date: 12/23/2023 11:40 PM
+     * 
+     * @param
+     * @return
+     */
     public void setChoiceMode(boolean mode) {
         mSelectedIndex.clear();
         mChoiceMode = mode;
     }
 
- 
+    /**
+     * @method  selectAll
+     * @description 选择全部选项
+     * @date: 12/23/2023 11:40 PM
+     * 
+     * @param checked
+     */
     public void selectAll(boolean checked) {
-         Cursor cursor = getCursor();
+        Cursor cursor = getCursor();//获取光标位置
         for (int i = 0; i < getCount(); i++) {
             if (cursor.moveToPosition(i)) {
                 if (NoteItemData.getNoteType(cursor) == Notes.TYPE_NOTE) {
@@ -99,16 +136,25 @@
                 }
             }
         }
+        //遍历所有光标可用的位置在判断为便签类型之后勾选单项框
     }
-  
-
+    /**
+     * @method  getSelectedItemIds
+     * @description 建立选择项的下标列表
+     * @date: 12/23/2023 11:39 PM
+     * 
+     * @param
+     * @return
+     */
     public HashSet<Long> getSelectedItemIds() {
-         HashSet<Long> itemSet = new HashSet<Long>();
-
+        HashSet<Long> itemSet = new HashSet<Long>();//建立hash表
         for (Integer position : mSelectedIndex.keySet()) {
+            //遍历所有的关键
             if (mSelectedIndex.get(position) == true) {
+                //若光标位置可用
                 Long id = getItemId(position);
                 if (id == Notes.ID_ROOT_FOLDER) {
+                    //原文件不需要添加
                     Log.d(TAG, "Wrong item id, should not happen");
                 } else {
                     itemSet.add(id);
@@ -118,19 +164,30 @@
 
         return itemSet;
     }
-  
-
+    /**
+     * @method  getSelectedWidget
+     * @description 建立桌面Widget的选项表
+     * @date: 12/23/2023 11:39 PM
+     * 
+     * @param
+     * @return
+     */
     public HashSet<AppWidgetAttribute> getSelectedWidget() {
         HashSet<AppWidgetAttribute> itemSet = new HashSet<AppWidgetAttribute>();
         for (Integer position : mSelectedIndex.keySet()) {
             if (mSelectedIndex.get(position) == true) {
                 Cursor c = (Cursor) getItem(position);
+                //以上4句和getSelectedItemIds一样，不再重复
                 if (c != null) {
+                    //光标位置可用的话就建立新的Widget属性并编辑下标和类型，最后添加到选项集中
                     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");
                     return null;
@@ -140,28 +197,45 @@
         return itemSet;
     }
 
+    /**
+     * @method  getSelectedCount
+     * @description 获取选项个数
+     * @date: 12/23/2023 11:39 PM
+     * 
+     */
     public int getSelectedCount() {
-         Collection<Boolean> values = mSelectedIndex.values();
+        Collection<Boolean> values = mSelectedIndex.values();//首先获取选项下标的值
         if (null == values) {
             return 0;
         }
-         Iterator<Boolean> iter = values.iterator();
+        Iterator<Boolean> iter = values.iterator();//初始化叠加器
         int count = 0;
         while (iter.hasNext()) {
             if (true == iter.next()) {
-                 count++;
+                count++;//若value值为真计数+1
             }
         }
         return count;
     }
 
-
+    /**
+     * @method  isAllSelected
+     * @description 判断是否全部选中
+     * @date: 12/23/2023 11:38 PM
+     * 
+     */
     public boolean isAllSelected() {
         int checkedCount = getSelectedCount();
-         return (checkedCount != 0 && checkedCount == mNotesCount);
+        return (checkedCount != 0 && checkedCount == mNotesCount);//获取选项数看是否等于便签的个数
     }
-  
-
+    /**
+     * @method  isSelectedItem
+     * @description 判断是否为选项表,通过传递的下标来确定
+     * @date: 12/23/2023 11:38 PM
+     * 
+     * @param
+     * @return
+     */
     public boolean isSelectedItem(final int position) {
         if (null == mSelectedIndex.get(position)) {
             return false;
@@ -170,28 +244,48 @@
     }
 
     @Override
-
-
+    /**
+     * @method  onContentChanged
+     * @description 在activity内容发生局部变动的时候回调该函数计算便签的数量
+     * @date: 12/23/2023 11:38 PM
+     * 
+     * @param []
+     * @return void
+     */
     protected void onContentChanged() {
         super.onContentChanged();
-
-         calcNotesCount();
+        calcNotesCount();//执行基类函数
     }
 
     @Override
+    /**
+     * @method  changeCursor
+     * @description 在activity光标发生局部变动的时候回调该函数计算便签的数量
+     * @date: 12/23/2023 11:37 PM
+     * 
+     * @param [cursor]
+     * @return void
+     */
     public void changeCursor(Cursor cursor) {
         super.changeCursor(cursor);
-         calcNotesCount();
+        calcNotesCount();//执行基类函数
     }
-  
-
+    /**
+     * @method  calcNotesCount
+     * @description 计算便签数量
+     * @date: 12/23/2023 11:37 PM
+     * 
+     * @param
+     * @return
+     */
     private void calcNotesCount() {
         mNotesCount = 0;
         for (int i = 0; i < getCount(); i++) {
+            //获取总数同时遍历
             Cursor c = (Cursor) getItem(i);
             if (c != null) {
                 if (NoteItemData.getNoteType(c) == Notes.TYPE_NOTE) {
-                     mNotesCount++;
+                    mNotesCount++;//若该位置不为空并且文本类型为便签就+1
                 }
             } else {
                 Log.e(TAG, "Invalid cursor");

src/net/micode/notes/ui/NotesListItem.java

@@ -1,19 +1,3 @@
-/*
- * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
 package net.micode.notes.ui;
 
 import android.content.Context;
@@ -30,42 +14,50 @@
 import net.micode.notes.tool.ResourceParser.NoteItemBgResources;
 
 
-
+/**
+ * @Package:        net.micode.notes.ui
+ * @ClassName:      NotesListItem
+ * @Description:    
+ * @Author:         
+ * @CreateDate:     12/23/2023 11:35 PM
+ * @Version:        1.0
+ */
 public class NotesListItem extends LinearLayout {
-     private ImageView mAlert;
-     private TextView mTitle;  
-     private TextView mTime;   
+    private ImageView mAlert;//闹钟图片
+    private TextView mTitle;  //标题
+    private TextView mTime;   //时间
     private TextView mCallName;
-     private NoteItemData mItemData; 
-     private CheckBox mCheckBox;    
-  
+    private NoteItemData mItemData; //标签数据
+    private CheckBox mCheckBox;    //打钩框
 
+    /*初始化基本信息*/
     public NotesListItem(Context context) {
-         super(context);   
-         inflate(context, R.layout.note_item, this);
+        super(context);   //super()它的主要作用是调整调用父类构造函数的顺序
+        inflate(context, R.layout.note_item, this);//Inflate可用于将一个xml中定义的布局控件找出来,这里的xml是r。layout
+        //findViewById用于从contentView中查找指定ID的View，转换出来的形式根据需要而定;
         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);
     }
-
+    ///根据data的属性对各个控件的属性的控制，主要是可见性Visibility，内容setText，格式setTextAppearance
     public void bind(Context context, NoteItemData data, boolean choiceMode, boolean checked) {
         if (choiceMode && data.getType() == Notes.TYPE_NOTE) {
-             mCheckBox.setVisibility(View.VISIBLE);  
-             mCheckBox.setChecked(checked);         
+            mCheckBox.setVisibility(View.VISIBLE);  ///设置可见行为可见
+            mCheckBox.setChecked(checked);         ///格子打钩
         } else {
             mCheckBox.setVisibility(View.GONE);
         }
 
         mItemData = data;
-
+        ///设置控件属性，一共三种情况，由data的id和父id是否与保存到文件夹的id一致来决定
         if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) {
             mCallName.setVisibility(View.GONE);
             mAlert.setVisibility(View.VISIBLE);
-
+            //设置该textview的style
             mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem);
-
+            //settext为设置内容
             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);
@@ -74,9 +66,9 @@
             mCallName.setText(data.getCallName());
             mTitle.setTextAppearance(context,R.style.TextAppearanceSecondaryItem);
             mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet()));
-
+            ///关于闹钟的设置
             if (data.hasAlert()) {
-                 mAlert.setImageResource(R.drawable.clock);
+                mAlert.setImageResource(R.drawable.clock);//图片来源的设置
                 mAlert.setVisibility(View.VISIBLE);
             } else {
                 mAlert.setVisibility(View.GONE);
@@ -84,7 +76,7 @@
         } else {
             mCallName.setVisibility(View.GONE);
             mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem);
-
+            ///设置title格式
             if (data.getType() == Notes.TYPE_FOLDER) {
                 mTitle.setText(data.getSnippet()
                         + context.getString(R.string.format_folder_files_count,
@@ -93,35 +85,35 @@
             } else {
                 mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet()));
                 if (data.hasAlert()) {
-                     mAlert.setImageResource(R.drawable.clock);
+                    mAlert.setImageResource(R.drawable.clock);///设置图片来源
                     mAlert.setVisibility(View.VISIBLE);
                 } else {
                     mAlert.setVisibility(View.GONE);
                 }
             }
         }
-
+        ///设置内容，获取相关时间，从data里编辑的日期中获取
         mTime. setText(DateUtils.getRelativeTimeSpanString(data.getModifiedDate()));
 
         setBackground(data);
     }
-
+    //根据data的文件属性来设置背景
     private void setBackground(NoteItemData data) {
         int id = data.getBgColorId();
-
+        //，若是note型文件，则4种情况，对于4种不同情况的背景来源
         if (data.getType() == Notes.TYPE_NOTE) {
-
+            //单个数据并且只有一个子文件夹
             if (data.isSingle() || data.isOneFollowingFolder()) {
                 setBackgroundResource(NoteItemBgResources.getNoteBgSingleRes(id));
-             } else if (data.isLast()) {
+            } else if (data.isLast()) {//是最后一个数据
                 setBackgroundResource(NoteItemBgResources.getNoteBgLastRes(id));
-             } else if (data.isFirst() || data.isMultiFollowingFolder()) {
+            } else if (data.isFirst() || data.isMultiFollowingFolder()) {//是一个数据并有多个子文件夹
                 setBackgroundResource(NoteItemBgResources.getNoteBgFirstRes(id));
             } else {
                 setBackgroundResource(NoteItemBgResources.getNoteBgNormalRes(id));
             }
         } else {
-
+            //若不是note直接调用文件夹的背景来源
             setBackgroundResource(NoteItemBgResources.getFolderBgRes());
         }
     }

src/net/micode/notes/ui/NotesPreferenceActivity.java

@@ -1,19 +1,3 @@
-/*
- * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
 package net.micode.notes.ui;
 
 import android.accounts.Account;
@@ -49,108 +33,118 @@
 
 
 public class NotesPreferenceActivity extends PreferenceActivity {
-     public static final String PREFERENCE_NAME = "notes_preferences";
- 
-     public static final String PREFERENCE_SYNC_ACCOUNT_NAME = "pref_key_account_name";
-
-     public static final String PREFERENCE_LAST_SYNC_TIME = "pref_last_sync_time";
-
+    public static final String PREFERENCE_NAME = "notes_preferences";//优先名
+    public static final String PREFERENCE_SYNC_ACCOUNT_NAME = "pref_key_account_name";//同步账号
+    public static final String PREFERENCE_LAST_SYNC_TIME = "pref_last_sync_time";//同步时间
     public static final String PREFERENCE_SET_BG_COLOR_KEY = "pref_key_bg_random_appear";
-  
-     private static final String PREFERENCE_SYNC_ACCOUNT_KEY = "pref_sync_account_key";
-
+    private static final String PREFERENCE_SYNC_ACCOUNT_KEY = "pref_sync_account_key";//同步密码
     private static final String AUTHORITIES_FILTER_KEY = "authorities";
-
-     private PreferenceCategory mAccountCategory;
-
-     private GTaskReceiver mReceiver;
-
-     private Account[] mOriAccounts;
-
-     private boolean mHasAddedAccount;
-
+    private PreferenceCategory mAccountCategory;//账户分组
+    private GTaskReceiver mReceiver;//同步任务接收器
+    private Account[] mOriAccounts;//账户
+    private boolean mHasAddedAccount;//账户的hash标记
 
     @Override
-
+    /**
+     * @method  onCreate
+     * @description 创建一个activity，在函数里要完成所有的正常静态设置
+     * @date: 12/23/2023 11:43 PM
+     * @author: YangYizhe
+     * @param [icicle]
+     * @return void
+     */
     protected void onCreate(Bundle icicle) {
-
         super.onCreate(icicle);
-
-         getActionBar().setDisplayHomeAsUpEnabled(true);
-  
-         addPreferencesFromResource(R.xml.preferences);
-
-         mAccountCategory = (PreferenceCategory) findPreference(PREFERENCE_SYNC_ACCOUNT_KEY);
+        /* using the app icon for navigation */
+        getActionBar().setDisplayHomeAsUpEnabled(true);//给左上角图标的左边加上一个返回的图标
+        addPreferencesFromResource(R.xml.preferences);//添加xml来源并显示 xml
+        mAccountCategory = (PreferenceCategory) findPreference(PREFERENCE_SYNC_ACCOUNT_KEY);//根据同步账户关键码来初始化分组
         mReceiver = new GTaskReceiver();
         IntentFilter filter = new IntentFilter();
         filter.addAction(GTaskSyncService.GTASK_SERVICE_BROADCAST_NAME);
-         registerReceiver(mReceiver, filter);
-  
+        registerReceiver(mReceiver, filter);//初始化同步组件
         mOriAccounts = null;
-         View header = LayoutInflater.from(this).inflate(R.layout.settings_header, null);
-         getListView().addHeaderView(header, null, true);
+        View header = LayoutInflater.from(this).inflate(R.layout.settings_header, null);//获取listvivew，ListView的作用:用于列出所有选择
+        getListView().addHeaderView(header, null, true);//在listview组件上方添加其他组件
     }
 
     @Override
-
+    /**
+     * @method  onResume
+     * @description activity交互功能的实现，用于接受用户的输入
+     * @date: 12/23/2023 11:44 PM
+     * @author: YangYizhe
+     * @return void
+     */
     protected void onResume() {
-
         super.onResume();
 
+        // need to set sync account automatically if user has added a new
+        // account
         if (mHasAddedAccount) {
-
-             Account[] accounts = getGoogleAccounts();
-
+            //若用户新加了账户则自动设置同步账户
+            Account[] accounts = getGoogleAccounts();//获取google同步账户
             if (mOriAccounts != null && accounts.length > mOriAccounts.length) {
+                //若原账户不为空且当前账户有增加
                 for (Account accountNew : accounts) {
                     boolean found = false;
                     for (Account accountOld : mOriAccounts) {
                         if (TextUtils.equals(accountOld.name, accountNew.name)) {
+                            //更新账户
                             found = true;
                             break;
                         }
                     }
                     if (!found) {
                         setSyncAccount(accountNew.name);
+                        //若是没有找到旧的账户，那么同步账号中就只添加新账户
                         break;
                     }
                 }
             }
         }
 
-         refreshUI();
-
+        refreshUI();//刷新标签界面
     }
 
     @Override
-
     protected void onDestroy() {
         if (mReceiver != null) {
-             unregisterReceiver(mReceiver);
+            unregisterReceiver(mReceiver);//注销接收器
         }
-         super.onDestroy();
-
+        super.onDestroy();//执行父类的销毁动作
     }
 
+    /**
+     * @method  loadAccountPreference
+     * @description 重新设置账户信息
+     * @date: 12/23/2023 11:45 PM
+     * @author: YangYizhe
+     * @param
+     * @return
+     */
     private void loadAccountPreference() {
-         mAccountCategory.removeAll();
-
-         Preference accountPref = new Preference(this);
-
+        mAccountCategory.removeAll();//销毁所有的分组
+        Preference accountPref = new Preference(this);//建立首选项
         final String defaultAccount = getSyncAccountName(this);
         accountPref.setTitle(getString(R.string.preferences_account_title));
-         accountPref.setSummary(getString(R.string.preferences_account_summary));
-
+        accountPref.setSummary(getString(R.string.preferences_account_summary));//设置首选项的大标题和小标题
         accountPref.setOnPreferenceClickListener(new OnPreferenceClickListener() {
             public boolean onPreferenceClick(Preference preference) {
-
+                //建立监听器
                 if (!GTaskSyncService.isSyncing()) {
                     if (TextUtils.isEmpty(defaultAccount)) {
+                        // the first time to set account
+                        //若是第一次建立账户显示选择账户提示对话框
                         showSelectAccountAlertDialog();
                     } else {
+                        // if the account has already been set, we need to promp
+                        // user about the risk
+                        //若是已经建立则显示修改对话框并进行修改操作
                         showChangeAccountConfirmAlertDialog();
                     }
                 } else {
+                    //若在没有同步的情况下，则在toast中显示不能修改
                     Toast.makeText(NotesPreferenceActivity.this,
                                     R.string.preferences_toast_cannot_change_account, Toast.LENGTH_SHORT)
                             .show();
@@ -158,173 +152,210 @@
                 return true;
             }
         });
-
-         mAccountCategory.addPreference(accountPref);
-     }
-
+        mAccountCategory.addPreference(accountPref);//根据新建首选项编辑新的账户分组
+    }
+    /**
+     * @method  loadSyncButton
+     * @description 设置按键的状态和最后同步的时间
+     * @date: 12/23/2023 11:46 PM
+     * @author: YangYizhe
+     * @param
+     * @return
+     */
     private void loadSyncButton() {
         Button syncButton = (Button) findViewById(R.id.preference_sync_button);
         TextView lastSyncTimeView = (TextView) findViewById(R.id.prefenerece_sync_status_textview);
+        //获取同步按钮控件和最终同步时间的的窗口
+        // set button state
+        //设置按钮的状态
         if (GTaskSyncService.isSyncing()) {
-
+            //若是在同步状态下
             syncButton.setText(getString(R.string.preferences_button_sync_cancel));
             syncButton.setOnClickListener(new View.OnClickListener() {
                 public void onClick(View v) {
                     GTaskSyncService.cancelSync(NotesPreferenceActivity.this);
                 }
-             });
-
+            });//设置按钮显示的文本为“取消同步”以及监听器
         } else {
             syncButton.setText(getString(R.string.preferences_button_sync_immediately));
             syncButton.setOnClickListener(new View.OnClickListener() {
                 public void onClick(View v) {
                     GTaskSyncService.startSync(NotesPreferenceActivity.this);
                 }
-             });
-
+            });//若是不同步则设置按钮显示的文本为“立即同步”以及对应监听器
         }
-         syncButton.setEnabled(!TextUtils.isEmpty(getSyncAccountName(this)));
-
+        syncButton.setEnabled(!TextUtils.isEmpty(getSyncAccountName(this)));//设置按键可用还是不可用
+        // set last sync time
+        // 设置最终同步时间
         if (GTaskSyncService.isSyncing()) {
+            //若是在同步的情况下
             lastSyncTimeView.setText(GTaskSyncService.getProgressString());
             lastSyncTimeView.setVisibility(View.VISIBLE);
-
+            // 根据当前同步服务器设置时间显示框的文本以及可见性
         } else {
-
+            //若是非同步情况
             long lastSyncTime = getLastSyncTime(this);
             if (lastSyncTime != 0) {
                 lastSyncTimeView.setText(getString(R.string.preferences_last_sync_time,
                         DateFormat.format(getString(R.string.preferences_last_sync_time_format),
                                 lastSyncTime)));
                 lastSyncTimeView.setVisibility(View.VISIBLE);
-
+                //则根据最后同步时间的信息来编辑时间显示框的文本内容和可见性
             } else {
-
+                //若时间为空直接设置为不可见状态
                 lastSyncTimeView.setVisibility(View.GONE);
             }
         }
     }
-
+    /**
+     * @method  refreshUI
+     * @description
+     * 刷新标签界面
+     * 调用上文设置账号和设置按键两个函数来实现
+     * @date: 12/23/2023 11:46 PM
+     * @author: YangYizhe
+     */
     private void refreshUI() {
         loadAccountPreference();
         loadSyncButton();
     }
-
+    /**
+     * @method  showSelectAccountAlertDialog
+     * @description 显示账户选择的对话框并进行账户的设置
+     * @date: 12/23/2023 11:47 PM
+     * @author: YangYizhe
+     * @param
+     * @return
+     */
     private void showSelectAccountAlertDialog() {
-         AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);
-
+        AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);//创建一个新的对话框
 
         View titleView = LayoutInflater.from(this).inflate(R.layout.account_dialog_title, null);
         TextView titleTextView = (TextView) titleView.findViewById(R.id.account_dialog_title);
         titleTextView.setText(getString(R.string.preferences_dialog_select_account_title));
         TextView subtitleTextView = (TextView) titleView.findViewById(R.id.account_dialog_subtitle);
-         subtitleTextView.setText(getString(R.string.preferences_dialog_select_account_tips));
-
+        subtitleTextView.setText(getString(R.string.preferences_dialog_select_account_tips));//设置标题以及子标题的内容
         dialogBuilder.setCustomTitle(titleView);
-         dialogBuilder.setPositiveButton(null, null);
-
+        dialogBuilder.setPositiveButton(null, null);//设置对话框的自定义标题，建立一个YES的按钮
         Account[] accounts = getGoogleAccounts();
-         String defAccount = getSyncAccountName(this);
-
+        String defAccount = getSyncAccountName(this);//获取同步账户信息
         mOriAccounts = accounts;
         mHasAddedAccount = false;
 
         if (accounts.length > 0) {
+            //若账户不为空
             CharSequence[] items = new CharSequence[accounts.length];
             final CharSequence[] itemMapping = items;
             int checkedItem = -1;
             int index = 0;
             for (Account account : accounts) {
                 if (TextUtils.equals(account.name, defAccount)) {
-                     checkedItem = index;
+                    checkedItem = index;//在账户列表中查询到所需账户
                 }
                 items[index++] = account.name;
             }
             dialogBuilder.setSingleChoiceItems(items, checkedItem,
+                    //在对话框建立一个单选的复选框
                     new DialogInterface.OnClickListener() {
                         public void onClick(DialogInterface dialog, int which) {
                             setSyncAccount(itemMapping[which].toString());
-                             dialog.dismiss();
+                            dialog.dismiss();//取消对话框
                             refreshUI();
                         }
-                     });
+                    });//建立对话框网络版的监听器
         }
 
         View addAccountView = LayoutInflater.from(this).inflate(R.layout.add_account_text, null);
-         dialogBuilder.setView(addAccountView);
+        dialogBuilder.setView(addAccountView);//给新加账户对话框设置自定义样式
 
-         final AlertDialog dialog = dialogBuilder.show();
+        final AlertDialog dialog = dialogBuilder.show();//显示对话框
         addAccountView.setOnClickListener(new View.OnClickListener() {
             public void onClick(View v) {
                 mHasAddedAccount = true;
+                //将新加账户的hash置true
                 Intent intent = new Intent("android.settings.ADD_ACCOUNT_SETTINGS");
+                //建立网络建立组件
                 intent.putExtra(AUTHORITIES_FILTER_KEY, new String[] {
                         "gmail-ls"
                 });
                 startActivityForResult(intent, -1);
-
+                //跳回上一个选项
                 dialog.dismiss();
             }
-         });
-
+        });//建立新加账户对话框的监听器
     }
-
+    /**
+     * @method  showChangeAccountConfirmAlertDialog
+     * @description 显示账户选择对话框和相关账户操作
+     * @date: 12/23/2023 11:48 PM
+     * @author: YangYizhe
+     */
     private void showChangeAccountConfirmAlertDialog() {
-         AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);
-
+        AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);//创建一个新的对话框
         View titleView = LayoutInflater.from(this).inflate(R.layout.account_dialog_title, null);
         TextView titleTextView = (TextView) titleView.findViewById(R.id.account_dialog_title);
         titleTextView.setText(getString(R.string.preferences_dialog_change_account_title,
                 getSyncAccountName(this)));
         TextView subtitleTextView = (TextView) titleView.findViewById(R.id.account_dialog_subtitle);
-         subtitleTextView.setText(getString(R.string.preferences_dialog_change_account_warn_msg));
-
-         dialogBuilder.setCustomTitle(titleView);
-
+        subtitleTextView.setText(getString(R.string.preferences_dialog_change_account_warn_msg));//根据同步修改的账户信息设置标题以及子标题的内容
+        dialogBuilder.setCustomTitle(titleView);//设置对话框的自定义标题
         CharSequence[] menuItemArray = new CharSequence[] {
                 getString(R.string.preferences_menu_change_account),
                 getString(R.string.preferences_menu_remove_account),
                 getString(R.string.preferences_menu_cancel)
         };
-
         dialogBuilder.setItems(menuItemArray, new DialogInterface.OnClickListener() {
+            //设置对话框要显示的一个list，用于显示几个命令时,即change，remove，cancel
             public void onClick(DialogInterface dialog, int which) {
-
+                //按键功能，由which来决定
                 if (which == 0) {
+                    //进入账户选择对话框
                     showSelectAccountAlertDialog();
                 } else if (which == 1) {
+                    //删除账户并且跟新便签界面
                     removeSyncAccount();
                     refreshUI();
                 }
             }
         });
-         dialogBuilder.show();
-
+        dialogBuilder.show();//显示对话框
     }
 
-
+    /**
+     * @method  getGoogleAccounts
+     * @description
+     * 获取谷歌账户
+     * 通过账户管理器直接获取
+     * @date: 12/23/2023 11:49 PM
+     * @author: YangYizhe
+     */
     private Account[] getGoogleAccounts() {
         AccountManager accountManager = AccountManager.get(this);
         return accountManager.getAccountsByType("com.google");
     }
 
-
+    /**
+     * @method  setSyncAccount
+     * @description 设置同步账户
+     * @date: 12/23/2023 11:49 PM
+     * @author: YangYizhe
+     * @param account
+     */
     private void setSyncAccount(String account) {
         if (!getSyncAccountName(this).equals(account)) {
+            //假如该账号不在同步账号列表中
             SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE);
-             SharedPreferences.Editor editor = settings.edit();
-
+            SharedPreferences.Editor editor = settings.edit();//编辑共享的首选项
             if (account != null) {
                 editor.putString(PREFERENCE_SYNC_ACCOUNT_NAME, account);
             } else {
                 editor.putString(PREFERENCE_SYNC_ACCOUNT_NAME, "");
-             }
+            }//将该账号加入到首选项中
 
+            editor.commit();//提交修改的数据
+            setLastSyncTime(this, 0);//将最后同步时间清零
 
-             editor.commit();
-             
-             setLastSyncTime(this, 0);
-
+            // clean up local gtask related info
             new Thread(new Runnable() {
                 public void run() {
                     ContentValues values = new ContentValues();
@@ -333,29 +364,33 @@
                     getContentResolver().update(Notes.CONTENT_NOTE_URI, values, null, null);
                 }
             }).start();
-
+            //重置当地同步任务的信息
 
             Toast.makeText(NotesPreferenceActivity.this,
                     getString(R.string.preferences_toast_success_set_accout, account),
                     Toast.LENGTH_SHORT).show();
-
+            //将toast的文本信息置为“设置账户成功”并显示出来
         }
     }
-
+    /**
+     * @method  removeSyncAccount
+     * @description 删除同步账户
+     * @date: 12/23/2023 11:49 PM
+     * @author: YangYizhe
+     */
     private void removeSyncAccount() {
         SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE);
-         SharedPreferences.Editor editor = settings.edit();
+        SharedPreferences.Editor editor = settings.edit();//设置共享首选项
 
         if (settings.contains(PREFERENCE_SYNC_ACCOUNT_NAME)) {
-             editor.remove(PREFERENCE_SYNC_ACCOUNT_NAME);
+            editor.remove(PREFERENCE_SYNC_ACCOUNT_NAME);//假如当前首选项中有账户就删除
         }
         if (settings.contains(PREFERENCE_LAST_SYNC_TIME)) {
-             editor.remove(PREFERENCE_LAST_SYNC_TIME);
+            editor.remove(PREFERENCE_LAST_SYNC_TIME);//删除当前首选项中有账户时间
         }
-         editor.commit();
-
-         
+        editor.commit();//提交更新后的数据
 
+        // clean up local gtask related info
         new Thread(new Runnable() {
             public void run() {
                 ContentValues values = new ContentValues();
@@ -364,56 +399,82 @@
                 getContentResolver().update(Notes.CONTENT_NOTE_URI, values, null, null);
             }
         }).start();
-       
-     }
-     
-
+        //重置当地同步任务的信息
+    }
+    /**
+     * @method  getSyncAccountName
+     * @description
+     * 获取同步账户名称
+     * 通过共享的首选项里的信息直接获取
+     * @date: 12/23/2023 11:50 PM
+     * @author: YangYizhe
+     * @param context
+     */
     public static String getSyncAccountName(Context context) {
         SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
                 Context.MODE_PRIVATE);
         return settings.getString(PREFERENCE_SYNC_ACCOUNT_NAME, "");
     }
-  
-
+    /**
+     * @method  setLastSyncTime
+     * @description 设置最终同步的时间
+     * @date: 12/23/2023 11:50 PM
+     * @author: YangYizhe
+     * @param
+     * @return
+     */
     public static void setLastSyncTime(Context context, long time) {
         SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
                 Context.MODE_PRIVATE);
-         SharedPreferences.Editor editor = settings.edit();
- 
+        SharedPreferences.Editor editor = settings.edit();// 从共享首选项中找到相关账户并获取其编辑器
         editor.putLong(PREFERENCE_LAST_SYNC_TIME, time);
-         editor.commit();
-
-     }
-
+        editor.commit();//编辑最终同步时间并提交更新
+    }
+    /**
+     * @method  getLastSyncTime
+     * @description
+     * 获取最终同步时间
+     * 通过共享的首选项里的信息直接获取
+     * @date: 12/23/2023 11:51 PM
+     * @author: YangYizhe
+     * @param context
+     */
     public static long getLastSyncTime(Context context) {
         SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
                 Context.MODE_PRIVATE);
         return settings.getLong(PREFERENCE_LAST_SYNC_TIME, 0);
     }
 
-
     private class GTaskReceiver extends BroadcastReceiver {
 
         @Override
         public void onReceive(Context context, Intent intent) {
             refreshUI();
             if (intent.getBooleanExtra(GTaskSyncService.GTASK_SERVICE_BROADCAST_IS_SYNCING, false)) {
+                //获取随广播而来的Intent中的同步服务的数据
                 TextView syncStatus = (TextView) findViewById(R.id.prefenerece_sync_status_textview);
                 syncStatus.setText(intent
-                         .getStringExtra(GTaskSyncService.GTASK_SERVICE_BROADCAST_PROGRESS_MSG));
+                        .getStringExtra(GTaskSyncService.GTASK_SERVICE_BROADCAST_PROGRESS_MSG));//通过获取的数据在设置系统的状态
             }
 
         }
     }
-  
-
+    /**
+     * @method  onOptionsItemSelected
+     * @description 处理菜单的选项
+     * @date: 12/23/2023 11:52 PM
+     * @author: YangYizhe
+     * @param item
+     */
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
+            //根据选项的id选择，这里只有一个主页
             case android.R.id.home:
                 Intent intent = new Intent(this, NotesListActivity.class);
                 intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                 startActivity(intent);
                 return true;
+            //在主页情况下在创建连接组件intent，发出清空的信号并开始一个相应的activity
             default:
                 return false;
         }