小米便签新加密码功能与添加图片功能（状态图与用例图）

doc/标注/210340065_马嘉序/ActionFailureException.java

@@ -18,16 +18,18 @@ package net.micode.notes.gtask.exception;
 
 public class ActionFailureException extends RuntimeException {
     private static final long serialVersionUID = 4425249765923293627L;
+    /*表示一个序列化类的版本号。当进行序列化和反序列化时，JVM 会检查类的 serialVersionUID 是否相同，如果不同就会抛出
+    InvalidClassException 异常。这样可以确保反序列化的类与序列化时的类版本相同，避免因版本不同导致的问题。*/
 
     public ActionFailureException() {
-        super();
+        super();                  //直接调用父类构造函数，即理解为Exception()
     }
 
     public ActionFailureException(String paramString) {
-        super(paramString);
+        super(paramString);       //理解为Exception(paramString)
     }
 
     public ActionFailureException(String paramString, Throwable paramThrowable) {
-        super(paramString, paramThrowable);
+        super(paramString, paramThrowable);          //理解为Exception(paramString, paramThrowable)
     }
 }

doc/标注/210340065_马嘉序/GTaskASyncTask.java

@@ -57,17 +57,13 @@ public class GTaskASyncTask extends AsyncTask<Void, String, Integer> {
         mTaskManager.cancelSync();
     }
 
-    public void publishProgess(String message) {
+    public void publishProgess(String message) {     //发布进度
         publishProgress(new String[] {
             message
         });
     }
 
-    private void showNotification(int tickerId, String content) {
-        Notification notification = new Notification(R.drawable.notification, mContext
-                .getString(tickerId), System.currentTimeMillis());
-        notification.defaults = Notification.DEFAULT_LIGHTS;
-        notification.flags = Notification.FLAG_AUTO_CANCEL;
+    private void showNotification(int tickerId, String content) {       //提示当前同步状态
         PendingIntent pendingIntent;
         if (tickerId != R.string.ticker_success) {
             pendingIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext,
@@ -77,20 +73,30 @@ public class GTaskASyncTask extends AsyncTask<Void, String, Integer> {
             pendingIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext,
                     NotesListActivity.class), 0);
         }
-        notification.setLatestEventInfo(mContext, mContext.getString(R.string.app_name), content,
-                pendingIntent);
+
+
+        Notification.Builder builder = new Notification.Builder(mContext)
+                .setAutoCancel(true)
+                .setContentTitle(mContext.getString(R.string.app_name))
+                .setContentText(content)
+                .setContentIntent(pendingIntent)
+                .setWhen(System.currentTimeMillis())
+                .setOngoing(true);
+        Notification notification=builder.getNotification();
         mNotifiManager.notify(GTASK_SYNC_NOTIFICATION_ID, notification);
     }
 
+
+
     @Override
-    protected Integer doInBackground(Void... unused) {
+    protected Integer doInBackground(Void... unused) {          //该任务于后台执行
         publishProgess(mContext.getString(R.string.sync_progress_login, NotesPreferenceActivity
                 .getSyncAccountName(mContext)));
         return mTaskManager.sync(mContext, this);
     }
 
     @Override
-    protected void onProgressUpdate(String... progress) {
+    protected void onProgressUpdate(String... progress) {         //显示进度条
         showNotification(R.string.ticker_syncing, progress[0]);
         if (mContext instanceof GTaskSyncService) {
             ((GTaskSyncService) mContext).sendBroadcast(progress[0]);

doc/标注/210340065_马嘉序/GTaskClient.java

@@ -106,15 +106,15 @@ public class GTaskClient {
         if (mInstance == null) {
             mInstance = new GTaskClient();
         }
-        return mInstance;
+        return mInstance;     //返回实例化对象，若未定义则创建对象
     }
 
-    public boolean login(Activity activity) {
+    public boolean login(Activity activity) {       //登录操作
         // we suppose that the cookie would expire after 5 minutes
         // then we need to re-login
         final long interval = 1000 * 60 * 5;
         if (mLastLoginTime + interval < System.currentTimeMillis()) {
-            mLoggedin = false;
+            mLoggedin = false;     //超过5分钟则重新登录
         }
 
         // need to re-login after account switch
@@ -129,14 +129,14 @@ public class GTaskClient {
             return true;
         }
 
-        mLastLoginTime = System.currentTimeMillis();
-        String authToken = loginGoogleAccount(activity, false);
+        mLastLoginTime = System.currentTimeMillis();   //更新最后登录时间
+        String authToken = loginGoogleAccount(activity, false);   //是否登录到谷歌账户
         if (authToken == null) {
             Log.e(TAG, "login google account failed");
             return false;
         }
 
-        // login with custom domain if necessary
+        // login with custom domain if necessary   使用域名登录
         if (!(mAccount.name.toLowerCase().endsWith("gmail.com") || mAccount.name.toLowerCase()
                 .endsWith("googlemail.com"))) {
             StringBuilder url = new StringBuilder(GTASK_URL).append("a/");
@@ -151,7 +151,7 @@ public class GTaskClient {
             }
         }
 
-        // try to login with google official url
+        // try to login with google official url   官方URL登录
         if (!mLoggedin) {
             mGetUrl = GTASK_GET_URL;
             mPostUrl = GTASK_POST_URL;
@@ -176,7 +176,7 @@ public class GTaskClient {
 
         String accountName = NotesPreferenceActivity.getSyncAccountName(activity);
         Account account = null;
-        for (Account a : accounts) {
+        for (Account a : accounts) {   //遍历
             if (a.name.equals(accountName)) {
                 account = a;
                 break;
@@ -189,7 +189,7 @@ public class GTaskClient {
             return null;
         }
 
-        // get the token now
+        // get the token now   获取通行许可
         AccountManagerFuture<Bundle> accountManagerFuture = accountManager.getAuthToken(account,
                 "goanna_mobile", null, activity, null, null);
         try {
@@ -207,7 +207,7 @@ public class GTaskClient {
         return authToken;
     }
 
-    private boolean tryToLoginGtask(Activity activity, String authToken) {
+    private boolean tryToLoginGtask(Activity activity, String authToken) {     //尝试登录GTask
         if (!loginGtask(authToken)) {
             // maybe the auth token is out of date, now let's invalidate the
             // token and try again
@@ -225,7 +225,7 @@ public class GTaskClient {
         return true;
     }
 
-    private boolean loginGtask(String authToken) {
+    private boolean loginGtask(String authToken) {     //登录具体操作
         int timeoutConnection = 10000;
         int timeoutSocket = 15000;
         HttpParams httpParameters = new BasicHttpParams();
@@ -238,8 +238,8 @@ public class GTaskClient {
 
         // login gtask
         try {
-            String loginUrl = mGetUrl + "?auth=" + authToken;
-            HttpGet httpGet = new HttpGet(loginUrl);
+            String loginUrl = mGetUrl + "?auth=" + authToken;    //设置登录URL
+            HttpGet httpGet = new HttpGet(loginUrl);    //实例化登录URL
             HttpResponse response = null;
             response = mHttpClient.execute(httpGet);
 

doc/标注/210340065_马嘉序/NetworkFailureException.java

@@ -18,16 +18,18 @@ package net.micode.notes.gtask.exception;
 
 public class NetworkFailureException extends Exception {
     private static final long serialVersionUID = 2107610287180234136L;
+    /*表示一个序列化类的版本号。当进行序列化和反序列化时，JVM 会检查类的 serialVersionUID 是否相同，如果不同就会抛出
+    InvalidClassException 异常。这样可以确保反序列化的类与序列化时的类版本相同，避免因版本不同导致的问题。*/
 
     public NetworkFailureException() {
-        super();
+        super();               //直接调用父类构造函数，即理解为Exception()
     }
 
     public NetworkFailureException(String paramString) {
-        super(paramString);
+        super(paramString);             //理解为Exception(paramString)
     }
 
     public NetworkFailureException(String paramString, Throwable paramThrowable) {
-        super(paramString, paramThrowable);
+        super(paramString, paramThrowable);           //理解为Exception(paramString, paramThrowable)
     }
 }

doc/标注/210340065_马嘉序/TaskList.java

@@ -30,22 +30,23 @@ import org.json.JSONObject;
 import java.util.ArrayList;
 
 
-public class TaskList extends Node {
+public class TaskList extends Node {  //对抽象类Node的拓展
     private static final String TAG = TaskList.class.getSimpleName();
 
-    private int mIndex;
+    private int mIndex;  //这是一个指针
 
-    private ArrayList<Task> mChildren;
+    private ArrayList<Task> mChildren;    //定义数组变量mChildren，存储Task类型系列数据
 
-    public TaskList() {
-        super();
+    public TaskList() {       //构造函数初始化
+        super();             //引用父类构造函数，理解为Node()
         mChildren = new ArrayList<Task>();
         mIndex = 1;
     }
 
     public JSONObject getCreateAction(int actionId) {
-        JSONObject js = new JSONObject();
+        JSONObject js = new JSONObject();   //生成JSONObject类型变量js
 
+        //下面代码中string内容参照GTaskStringUtils中共同阅读
         try {
             // action_type
             js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
@@ -94,7 +95,7 @@ public class TaskList extends Node {
             entity.put(GTaskStringUtils.GTASK_JSON_DELETED, getDeleted());
             js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity);
 
-        } catch (JSONException e) {
+        } catch (JSONException e) {        //指捕捉JSONException异常
             Log.e(TAG, e.toString());
             e.printStackTrace();
             throw new ActionFailureException("fail to generate tasklist-update jsonobject");
@@ -217,7 +218,7 @@ public class TaskList extends Node {
     }
 
     public int getChildTaskCount() {
-        return mChildren.size();
+        return mChildren.size();    //返回TaskList数组mChildren的大小
     }
 
     public boolean addChildTask(Task task) {
@@ -228,13 +229,14 @@ public class TaskList extends Node {
                 // need to set prior sibling and parent
                 task.setPriorSibling(mChildren.isEmpty() ? null : mChildren
                         .get(mChildren.size() - 1));
+                //每一次数组变化时，setPriorSibling都要紧跟更改
                 task.setParent(this);
             }
         }
-        return ret;
+        return ret;    //返回布尔值——是否成功添加任务
     }
 
-    public boolean addChildTask(Task task, int index) {
+    public boolean addChildTask(Task task, int index) {      //即添加新任务
         if (index < 0 || index > mChildren.size()) {
             Log.e(TAG, "add child task: invalid index");
             return false;
@@ -260,7 +262,7 @@ public class TaskList extends Node {
         return true;
     }
 
-    public boolean removeChildTask(Task task) {
+    public boolean removeChildTask(Task task) {      //删除TaskList数组中的成员
         boolean ret = false;
         int index = mChildren.indexOf(task);
         if (index != -1) {
@@ -278,10 +280,10 @@ public class TaskList extends Node {
                 }
             }
         }
-        return ret;
+        return ret;     //布尔值——是否删除成功
     }
 
-    public boolean moveChildTask(Task task, int index) {
+    public boolean moveChildTask(Task task, int index) {     //将TaskList中含有的某个成员移动至index位置
 
         if (index < 0 || index >= mChildren.size()) {
             Log.e(TAG, "move child task: invalid index");
@@ -297,9 +299,10 @@ public class TaskList extends Node {
         if (pos == index)
             return true;
         return (removeChildTask(task) && addChildTask(task, index));
+        //在移除成员和添加成员均成功时返回真值
     }
 
-    public Task findChildTaskByGid(String gid) {
+    public Task findChildTaskByGid(String gid) {      //按gid寻找Task
         for (int i = 0; i < mChildren.size(); i++) {
             Task t = mChildren.get(i);
             if (t.getGid().equals(gid)) {
@@ -310,7 +313,7 @@ public class TaskList extends Node {
     }
 
     public int getChildTaskIndex(Task task) {
-        return mChildren.indexOf(task);
+        return mChildren.indexOf(task);   //返回指定Task的index
     }
 
     public Task getChildTaskByIndex(int index) {
@@ -318,13 +321,13 @@ public class TaskList extends Node {
             Log.e(TAG, "getTaskByIndex: invalid index");
             return null;
         }
-        return mChildren.get(index);
+        return mChildren.get(index);    //返回指定index的Task
     }
 
     public Task getChilTaskByGid(String gid) {
         for (Task task : mChildren) {
             if (task.getGid().equals(gid))
-                return task;
+                return task;   //返回指定gid的Task
         }
         return null;
     }

doc/标注/210340081_杨申申/FoldersListAdapter.java

@@ -30,10 +30,14 @@ import net.micode.notes.data.Notes.NoteColumns;
 
 
 public class FoldersListAdapter extends CursorAdapter {
+    //CursorAdapter是Cursor和ListView的接口
+    //FoldersListAdapter继承CursorAdapter的类
+    //主要作用：便签数据库和用户的交互
+    //以folder(文件夹）的形式展现给用户
     public static final String [] PROJECTION = {
         NoteColumns.ID,
         NoteColumns.SNIPPET
-    };
+    };//调用数据库中便签的ID和片段
 
     public static final int ID_COLUMN   = 0;
     public static final int NAME_COLUMN = 1;
@@ -41,12 +45,13 @@ public class FoldersListAdapter extends CursorAdapter {
     public FoldersListAdapter(Context context, Cursor c) {
         super(context, c);
         // TODO Auto-generated constructor stub
-    }
+    }//数据库操作
 
     @Override
     public View newView(Context context, Cursor cursor, ViewGroup parent) {
+        //ViewGroup是容器
         return new FolderListItem(context);
-    }
+    }//创建一个用于各文件夹中子标签初始化的文件夹
 
     @Override
     public void bindView(View view, Context context, Cursor cursor) {
@@ -55,20 +60,22 @@ public class FoldersListAdapter extends CursorAdapter {
                     .getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN);
             ((FolderListItem) view).bind(folderName);
         }
-    }
+    }//将各个布局文件绑定起来
 
     public String getFolderName(Context context, int position) {
         Cursor cursor = (Cursor) getItem(position);
         return (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context
                 .getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN);
-    }
+    }//格局数据库中标签的ID得到各项内容，通过判断ID标签选择将内容放到文件夹，否则获取NAME_CULUMN
 
     private class FolderListItem extends LinearLayout {
         private TextView mName;
 
         public FolderListItem(Context context) {
             super(context);
+            //操作数据库
             inflate(context, R.layout.folder_list_item, this);
+            //根据布局文件的名字等信息将其找出来
             mName = (TextView) findViewById(R.id.tv_folder_name);
         }
 

doc/标注/210340081_杨申申/NoteEditActivity.java

@@ -74,6 +74,8 @@ import java.util.regex.Pattern;
 
 public class NoteEditActivity extends Activity implements OnClickListener,
         NoteSettingChangedListener, OnTextViewChangeListener {
+    //该类主要是针对标签的编辑
+    //继承了系统内部许多和监听有关的类
     private class HeadViewHolder {
         public TextView tvModified;
 
@@ -83,7 +85,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
 
         public ImageView ibSetBgColor;
     }
-
+    //使用Map实现数据存储
     private static final Map<Integer, Integer> sBgSelectorBtnsMap = new HashMap<Integer, Integer>();
     static {
         sBgSelectorBtnsMap.put(R.id.iv_bg_yellow, ResourceParser.YELLOW);
@@ -91,6 +93,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         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);
+        //put函数是将指定值和指定键相连
     }
 
     private static final Map<Integer, Integer> sBgSelectorSelectionMap = new HashMap<Integer, Integer>();
@@ -100,6 +103,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         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);
+        //put函数是将指定值和指定键相连
     }
 
     private static final Map<Integer, Integer> sFontSizeBtnsMap = new HashMap<Integer, Integer>();
@@ -108,6 +112,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         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);
+        //put函数是将指定值和指定键相连
     }
 
     private static final Map<Integer, Integer> sFontSelectorSelectionMap = new HashMap<Integer, Integer>();
@@ -116,6 +121,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         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);
+        //put函数是将指定值和指定键相连
     }
 
     private static final String TAG = "NoteEditActivity";
@@ -123,19 +129,29 @@ public class NoteEditActivity extends Activity implements OnClickListener,
     private HeadViewHolder mNoteHeaderHolder;
 
     private View mHeadViewPanel;
+    //私有化一个界面操作mHeadViewPanel,对表头的操作
 
     private View mNoteBgColorSelector;
+    //私有化一个界面操作mNoteBgColorSelector,对背景颜色的操作
 
     private View mFontSizeSelector;
+    //私有化一个界面操作mFontSizeSelector，对标签字体的操作
 
     private EditText mNoteEditor;
+    //声明编辑控件，对文本操作
 
     private View mNoteEditorPanel;
+    //私有化一个界面操作mNoteEditorPanel,文本编辑的控制板
+    //private WorkingNote mWorkingNote
 
     private WorkingNote mWorkingNote;
+    //对模板WorkingNote的初始化
 
     private SharedPreferences mSharedPrefs;
+    //私有化SharedPreferences的数据存储方式
+    //它的本质是基于XML文件存储Key-value键值对数据
     private int mFontSizeId;
+    //用于操作字体的大小
 
     private static final String PREFERENCE_FONT_SIZE = "pref_font_size";
 
@@ -145,6 +161,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
     public static final String TAG_UNCHECKED = String.valueOf('\u25A1');
 
     private LinearLayout mEditTextList;
+    //线性布局
 
     private String mUserQuery;
     private Pattern mPattern;
@@ -176,7 +193,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
                 return;
             }
             Log.d(TAG, "Restoring from killed activity");
-        }
+        }//为防止内存不足时程序的终止，在这里有一个保存现场的函数
     }
 
     private boolean initActivityState(Intent intent) {
@@ -188,34 +205,44 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         if (TextUtils.equals(Intent.ACTION_VIEW, intent.getAction())) {
             long noteId = intent.getLongExtra(Intent.EXTRA_UID, 0);
             mUserQuery = "";
+            //如果用户实例化标签时，系统并未给出标签ID
 
             /**
              * Starting from the searched result
              */
+            //根据键值查找ID
             if (intent.hasExtra(SearchManager.EXTRA_DATA_KEY)) {
                 noteId = Long.parseLong(intent.getStringExtra(SearchManager.EXTRA_DATA_KEY));
                 mUserQuery = intent.getStringExtra(SearchManager.USER_QUERY);
             }
-
+            //如果ID在数据库中未找到
             if (!DataUtils.visibleInNoteDatabase(getContentResolver(), noteId, Notes.TYPE_NOTE)) {
                 Intent jump = new Intent(this, NotesListActivity.class);
                 startActivity(jump);
+                //程序将跳转到上面声明的intent-jump
                 showToast(R.string.error_note_not_exist);
                 finish();
                 return false;
-            } else {
+
+            }//ID在数据库中找到
+            else {
                 mWorkingNote = WorkingNote.load(this, noteId);
                 if (mWorkingNote == null) {
                     Log.e(TAG, "load note failed with note id" + noteId);
+                    //打印出红色的错误信息
                     finish();
                     return false;
                 }
             }
+            //setSoftInputMode-软键盘输入模式
             getWindow().setSoftInputMode(
                     WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN
                             | WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
         } else if(TextUtils.equals(Intent.ACTION_INSERT_OR_EDIT, intent.getAction())) {
             // New note
+            //intend.getAction()
+            //大多用于broadcast发送广播时给机制(intent)设置一个action,就是一个字符串
+            //用户可以通过receive(接受)intent,通过getAction得到的字符串，来决定做什么
             long folderId = intent.getLongExtra(Notes.INTENT_EXTRA_FOLDER_ID, 0);
             int widgetId = intent.getIntExtra(Notes.INTENT_EXTRA_WIDGET_ID,
                     AppWidgetManager.INVALID_APPWIDGET_ID);
@@ -223,6 +250,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
                     Notes.TYPE_WIDGET_INVALIDE);
             int bgResId = intent.getIntExtra(Notes.INTENT_EXTRA_BACKGROUND_ID,
                     ResourceParser.getDefaultBgId(this));
+            //intent,getInt(Long、String)Extra是对各变量的语法分析
 
             // Parse call-record note
             String phoneNumber = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
@@ -240,6 +268,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
                         finish();
                         return false;
                     }
+                    //讲电话号码与手机的号码薄相关
                 } else {
                     mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId,
                             widgetType, bgResId);
@@ -248,7 +277,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
             } else {
                 mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId, widgetType,
                         bgResId);
-            }
+            }//创建一个新的WorkingNote
 
             getWindow().setSoftInputMode(
                     WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE
@@ -269,8 +298,10 @@ public class NoteEditActivity extends Activity implements OnClickListener,
     }
 
     private void initNoteScreen() {
+        //对界面的初始化操作
         mNoteEditor.setTextAppearance(this, TextAppearanceResources
                 .getTexAppearanceResource(mFontSizeId));
+        //设置外观
         if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {
             switchToListMode(mWorkingNote.getContent());
         } else {
@@ -295,17 +326,20 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         showAlertHeader();
     }
 
+    //设置闹钟的提示
     private void showAlertHeader() {
         if (mWorkingNote.hasClockAlert()) {
             long time = System.currentTimeMillis();
             if (time > mWorkingNote.getAlertDate()) {
                 mNoteHeaderHolder.tvAlertDate.setText(R.string.note_alert_expired);
-            } else {
+            }//如果系统时间大于了闹钟设置的时间，那么闹钟失效
+            else {
                 mNoteHeaderHolder.tvAlertDate.setText(DateUtils.getRelativeTimeSpanString(
                         mWorkingNote.getAlertDate(), time, DateUtils.MINUTE_IN_MILLIS));
             }
             mNoteHeaderHolder.tvAlertDate.setVisibility(View.VISIBLE);
             mNoteHeaderHolder.ivAlertIcon.setVisibility(View.VISIBLE);
+            //显示闹钟开启的图标
         } else {
             mNoteHeaderHolder.tvAlertDate.setVisibility(View.GONE);
             mNoteHeaderHolder.ivAlertIcon.setVisibility(View.GONE);
@@ -329,26 +363,30 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         if (!mWorkingNote.existInDatabase()) {
             saveNote();
         }
+        //在创建一个新的标签时，现在数据库中匹配
+        //如果不在，那么现在数据库中存储
         outState.putLong(Intent.EXTRA_UID, mWorkingNote.getNoteId());
         Log.d(TAG, "Save working note id: " + mWorkingNote.getNoteId() + " onSaveInstanceState");
     }
 
     @Override
+    //MotionEvent是对屏幕触控的传递机制
     public boolean dispatchTouchEvent(MotionEvent ev) {
         if (mNoteBgColorSelector.getVisibility() == View.VISIBLE
                 && !inRangeOfView(mNoteBgColorSelector, ev)) {
             mNoteBgColorSelector.setVisibility(View.GONE);
             return true;
-        }
+        }//颜色选择器在屏幕上可见
 
         if (mFontSizeSelector.getVisibility() == View.VISIBLE
                 && !inRangeOfView(mFontSizeSelector, ev)) {
             mFontSizeSelector.setVisibility(View.GONE);
             return true;
-        }
+        }//字体大小选择器在屏幕上可见
         return super.dispatchTouchEvent(ev);
     }
 
+    //对屏幕触控的坐标进行操作
     private boolean inRangeOfView(View view, MotionEvent ev) {
         int []location = new int[2];
         view.getLocationOnScreen(location);
@@ -358,6 +396,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
                 || ev.getX() > (x + view.getWidth())
                 || ev.getY() < y
                 || ev.getY() > (y + view.getHeight())) {
+            //如果触控的位置超出了给定的范围，返回False
                     return false;
                 }
         return true;
@@ -377,13 +416,13 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         for (int id : sBgSelectorBtnsMap.keySet()) {
             ImageView iv = (ImageView) findViewById(id);
             iv.setOnClickListener(this);
-        }
+        }//对标签个项目属性内容的初始化
 
         mFontSizeSelector = findViewById(R.id.font_size_selector);
         for (int id : sFontSizeBtnsMap.keySet()) {
             View view = findViewById(id);
             view.setOnClickListener(this);
-        };
+        };//对字体大小的选择
         mSharedPrefs = PreferenceManager.getDefaultSharedPreferences(this);
         mFontSizeId = mSharedPrefs.getInt(PREFERENCE_FONT_SIZE, ResourceParser.BG_DEFAULT_FONT_SIZE);
         /**
@@ -406,6 +445,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         clearSettingState();
     }
 
+    //和桌面小工具的同步
     private void updateWidget() {
         Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
         if (mWorkingNote.getWidgetType() == Notes.TYPE_WIDGET_2X) {
@@ -430,7 +470,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         if (id == R.id.btn_set_bg_color) {
             mNoteBgColorSelector.setVisibility(View.VISIBLE);
             findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility(
-                    -                    View.VISIBLE);
+                    View.VISIBLE);
         } else if (sBgSelectorBtnsMap.containsKey(id)) {
             findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility(
                     View.GONE);
@@ -453,6 +493,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
     }
 
     @Override
+    //对选择菜单的准备
     public void onBackPressed() {
         if(clearSettingState()) {
             return;
@@ -489,6 +530,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         menu.clear();
         if (mWorkingNote.getFolderId() == Notes.ID_CALL_RECORD_FOLDER) {
             getMenuInflater().inflate(R.menu.call_note_edit, menu);
+            //MenuInflater是用来实例化Menu目录下的Menu布局文件的
         } else {
             getMenuInflater().inflate(R.menu.note_edit, menu);
         }
@@ -506,45 +548,70 @@ public class NoteEditActivity extends Activity implements OnClickListener,
     }
 
     @Override
+    /*
+     *函数功能：动态改变菜单选项内容
+     */
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
+            //根据菜单的id来编剧相关项目
             case R.id.menu_new_note:
+                //创建一个新的便签
                 createNewNote();
                 break;
             case R.id.menu_delete:
+                //删除便签
                 AlertDialog.Builder builder = new AlertDialog.Builder(this);
+                //创建关于删除操作的对话框
                 builder.setTitle(getString(R.string.alert_title_delete));
+                //设置便签的标题为alert_title_delete
                 builder.setIcon(android.R.drawable.ic_dialog_alert);
+                //设置对话框图标
                 builder.setMessage(getString(R.string.alert_message_delete_note));
+                //设置对话框内容
                 builder.setPositiveButton(android.R.string.ok,
                         new DialogInterface.OnClickListener() {
+                    //建立按键监听器
                             public void onClick(DialogInterface dialog, int which) {
+                                //点击所触发事件
                                 deleteCurrentNote();
+                                //删除单签便签
                                 finish();
                             }
                         });
+                //添加“YES”按钮
                 builder.setNegativeButton(android.R.string.cancel, null);
+                //添加“NO”的按钮
                 builder.show();
+                //显示对话框
                 break;
             case R.id.menu_font_size:
+                //字体大小的的编辑
                 mFontSizeSelector.setVisibility(View.VISIBLE);
+                //将字体选择器置为可见
                 findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.VISIBLE);
+                //通过id找到相应的大小
                 break;
             case R.id.menu_list_mode:
+                //选择列表模式
                 mWorkingNote.setCheckListMode(mWorkingNote.getCheckListMode() == 0 ?
                         TextNote.MODE_CHECK_LIST : 0);
                 break;
             case R.id.menu_share:
+                //菜单共享
                 getWorkingText();
                 sendTo(this, mWorkingNote.getContent());
+                //用sendto函数将运行文本发送到便利的本文内
                 break;
             case R.id.menu_send_to_desktop:
+                //发送到桌面
                 sendToDesktop();
                 break;
             case R.id.menu_alert:
+                //创建提醒器
                 setReminder();
                 break;
             case R.id.menu_delete_remind:
+                //删除提醒器
                 mWorkingNote.setAlertDate(0, false);
                 break;
             default:
@@ -553,95 +620,138 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         return true;
     }
 
+    /*
+        *函数功能：建立事件提醒器
+     */
     private void setReminder() {
         DateTimePickerDialog d = new DateTimePickerDialog(this, System.currentTimeMillis());
         d.setOnDateTimeSetListener(new OnDateTimeSetListener() {
             public void OnDateTimeSet(AlertDialog dialog, long date) {
                 mWorkingNote.setAlertDate(date	, true);
-            }
+            }//选择提醒的日期
         });
+        //建立时间日期的监听器
         d.show();
+        //显示对话框
     }
 
     /**
      * Share note to apps that support {@link Intent#ACTION_SEND} action
      * and {@text/plain} type
      */
+    /*
+     *函数功能：共享便签
+     *函数实现：如下注释
+     */
     private void sendTo(Context context, String info) {
         Intent intent = new Intent(Intent.ACTION_SEND);
+        //建立intent连链接项
         intent.putExtra(Intent.EXTRA_TEXT, info);
+        //将需要传递的便签信息放入text文件中
         intent.setType("text/plain");
+        //编辑连接器的类型
         context.startActivity(intent);
+        //在acti中进行连接
     }
 
+    /*
+     *函数功能：创建一个新的便签
+     */
     private void createNewNote() {
         // Firstly, save current editing notes
+        //保存当前便签
         saveNote();
 
         // For safety, start a new NoteEditActivity
         finish();
         Intent intent = new Intent(this, NoteEditActivity.class);
+        //设置链接器
         intent.setAction(Intent.ACTION_INSERT_OR_EDIT);
+        //该活动定义为创建或编辑
         intent.putExtra(Notes.INTENT_EXTRA_FOLDER_ID, mWorkingNote.getFolderId());
+        //将运行便签的id添加到INTENT_EXTRA_FOLDR_ID标签中
         startActivity(intent);
+        //开始activity并链接
     }
-
+    /*
+     *函数功能：删除当前便签
+     */
     private void deleteCurrentNote() {
         if (mWorkingNote.existInDatabase()) {
+            //加入当前运行的便签内存有数据
             HashSet<Long> ids = new HashSet<Long>();
             long id = mWorkingNote.getNoteId();
             if (id != Notes.ID_ROOT_FOLDER) {
                 ids.add(id);
+                //如果不是头文件夹建立一个hash表把标签id存起来
             } else {
                 Log.d(TAG, "Wrong note id, should not happen");
+                //否则报错
             }
             if (!isSyncMode()) {
+                //在非同步模式情况下
+                //删除操作
                 if (!DataUtils.batchDeleteNotes(getContentResolver(), ids)) {
                     Log.e(TAG, "Delete Note error");
                 }
             } else {
+                //同步模式
+                //移动至垃圾文件夹的操作
                 if (!DataUtils.batchMoveToFolder(getContentResolver(), ids, Notes.ID_TRASH_FOLER)) {
                     Log.e(TAG, "Move notes to trash folder error, should not happens");
                 }
             }
         }
         mWorkingNote.markDeleted(true);
+        //将这些标签的删除标记置为true
     }
 
+    /*
+     *函数功能：判断是否为同步模式
+     */
     private boolean isSyncMode() {
         return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0;
     }
 
+    /*
+    *函数功能：设置提醒时间
+     */
     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()) {
+            //首先保存已有的标签
             saveNote();
         }
         if (mWorkingNote.getNoteId() > 0) {
             Intent intent = new Intent(this, AlarmReceiver.class);
             intent.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mWorkingNote.getNoteId()));
+            //若有运行的便签就是建立一个链接器将标签id都存在uri中
             PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0);
             AlarmManager alarmManager = ((AlarmManager) getSystemService(ALARM_SERVICE));
+            //设置提醒管理器
             showAlertHeader();
             if(!set) {
                 alarmManager.cancel(pendingIntent);
             } else {
                 alarmManager.set(AlarmManager.RTC_WAKEUP, date, pendingIntent);
-            }
+            }//如果用户设置了时间，就通过提醒管理设置一个监听事项
         } 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
              */
+            //没有运行的标签就报错
             Log.e(TAG, "Clock alert setting error");
             showToast(R.string.error_note_empty_for_clock);
         }
     }
-
+    /*
+     *函数功能：删除编辑文本框所触及发的事件
+     */
     public void onWidgetChanged() {
         updateWidget();
     }
@@ -651,13 +761,14 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         if (childCount == 1) {
             return;
         }
-
+        //没有编辑框的话就直接返回
         for (int i = index + 1; i < childCount; i++) {
             ((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text))
                     .setIndex(i - 1);
         }
-
+            //通过id把编辑框存在便签编辑框中
         mEditTextList.removeViewAt(index);
+        //删除特定位置的视图
         NoteEditText edit = null;
         if(index == 0) {
             edit = (NoteEditText) mEditTextList.getChildAt(0).findViewById(
@@ -666,12 +777,15 @@ public class NoteEditActivity extends Activity implements OnClickListener,
             edit = (NoteEditText) mEditTextList.getChildAt(index - 1).findViewById(
                     R.id.et_edit_text);
         }
+        //通过id把编辑框存在空的NoteEditText中
         int length = edit.length();
         edit.append(text);
-        edit.requestFocus();
-        edit.setSelection(length);
+        edit.requestFocus();//请求优先完成此编辑
+        edit.setSelection(length);//定位到Length位置处的条目
     }
-
+    /*
+     *函数功能：进入编辑文本框所触发的事件
+     */
     public void onEditTextEnter(int index, String text) {
         /**
          * Should not happen, check for debug
@@ -682,52 +796,74 @@ public class NoteEditActivity extends Activity implements OnClickListener,
 
         View view = getListItem(text, index);
         mEditTextList.addView(view, index);
+        //建立一个新的试图并添加到编辑文本框内
         NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text);
-        edit.requestFocus();
-        edit.setSelection(0);
+        edit.requestFocus();//请求优先操作
+        edit.setSelection(0);//定位到起始位置
         for (int i = index + 1; i < mEditTextList.getChildCount(); i++) {
             ((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text))
                     .setIndex(i);
+            //遍历子文本框并设置对应下标
         }
     }
-
+    /*
+     *函数功能：切换至列表模式
+     */
     private void switchToListMode(String text) {
         mEditTextList.removeAllViews();
         String[] items = text.split("\n");
         int index = 0;
+        //清空所有视图，初始化下表
         for (String item : items) {
             if(!TextUtils.isEmpty(item)) {
                 mEditTextList.addView(getListItem(item, index));
                 index++;
+                //遍历所有文本单元并添加到文本框中
             }
         }
         mEditTextList.addView(getListItem("", index));
         mEditTextList.getChildAt(index).findViewById(R.id.et_edit_text).requestFocus();
+        //优先请求此操作
 
         mNoteEditor.setVisibility(View.GONE);
+        //便签编辑器不可见
         mEditTextList.setVisibility(View.VISIBLE);
+        //将文本编辑框置为可见
     }
 
+    /*
+     *函数功能：获取高亮效果的反馈情况
+     */
     private Spannable getHighlightQueryResult(String fullText, String userQuery) {
         SpannableString spannable = new SpannableString(fullText == null ? "" : fullText);
+        //新建一个效果选项
         if (!TextUtils.isEmpty(userQuery)) {
             mPattern = Pattern.compile(userQuery);
+            //将用户的询问进行解析
             Matcher m = mPattern.matcher(fullText);
+            //建立一个状态机检查Pattern并进行匹配
             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);
+                //设置背景颜色
                 start = m.end();
+                //更新起始位置
             }
         }
         return spannable;
     }
 
+    /*
+     *函数功能：获取列表项
+     */
     private View getListItem(String item, int index) {
         View view = LayoutInflater.from(this).inflate(R.layout.note_edit_list_item, null);
+        //创建一个视图
         final NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text);
+        //创建一个文本编辑框并设置可见性
         edit.setTextAppearance(this, TextAppearanceResources.getTexAppearanceResource(mFontSizeId));
         CheckBox cb = ((CheckBox) view.findViewById(R.id.cb_edit_item));
         cb.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@@ -739,12 +875,15 @@ public class NoteEditActivity extends Activity implements OnClickListener,
                 }
             }
         });
+        //建立一个打勾框并设置监听器
 
         if (item.startsWith(TAG_CHECKED)) {
+            //选择勾选
             cb.setChecked(true);
             edit.setPaintFlags(edit.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);
             item = item.substring(TAG_CHECKED.length(), item.length()).trim();
         } else if (item.startsWith(TAG_UNCHECKED)) {
+            //选择不勾选
             cb.setChecked(false);
             edit.setPaintFlags(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG);
             item = item.substring(TAG_UNCHECKED.length(), item.length()).trim();
@@ -753,61 +892,87 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         edit.setOnTextViewChangeListener(this);
         edit.setIndex(index);
         edit.setText(getHighlightQueryResult(item, mUserQuery));
+        //运行编辑框的监听器对该行为作出反应，并设置下标及文本内容
         return view;
     }
 
+    /*
+     *函数功能：便签内容发生改变所触发的事件
+     */
     public void onTextChange(int index, boolean hasText) {
         if (index >= mEditTextList.getChildCount()) {
             Log.e(TAG, "Wrong index, should not happen");
             return;
+            //越界报错
         }
         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);
+        }//如果内容不为空则将其子编辑框可见性置为可见，否则不可见
     }
-    }
-
+    /*
+     *函数功能：检查模式和列表模式的切换
+     */
     public void onCheckListModeChanged(int oldMode, int newMode) {
         if (newMode == TextNote.MODE_CHECK_LIST) {
             switchToListMode(mNoteEditor.getText().toString());
+            //检查模式切换到列表模式
         } else {
             if (!getWorkingText()) {
                 mWorkingNote.setWorkingText(mWorkingNote.getContent().replace(TAG_UNCHECKED + " ",
                         ""));
             }
+            //若是获取到文本就改变其检查标记
             mNoteEditor.setText(getHighlightQueryResult(mWorkingNote.getContent(), mUserQuery));
             mEditTextList.setVisibility(View.GONE);
             mNoteEditor.setVisibility(View.VISIBLE);
+            //修改文本编辑器的内容和可见性
         }
     }
-
+    /*
+    函数功能：设置勾选选型表并返回是否勾选的标记
+     */
     private boolean getWorkingText() {
         boolean hasChecked = false;
+        //初始化check标记
         if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {
+            //若模式为CHECK_LIST
             StringBuilder sb = new StringBuilder();
+            //创建可变字符串
             for (int i = 0; i < mEditTextList.getChildCount(); i++) {
                 View view = mEditTextList.getChildAt(i);
+                //遍历所有子编辑框的视图
                 NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text);
                 if (!TextUtils.isEmpty(edit.getText())) {
+                    //若文本不为空
                     if (((CheckBox) view.findViewById(R.id.cb_edit_item)).isChecked()) {
+                        //该选项框已打勾
                         sb.append(TAG_CHECKED).append(" ").append(edit.getText()).append("\n");
                         hasChecked = true;
+                        //拓展字符串为已打勾并把标记置为true
                     } else {
                         sb.append(TAG_UNCHECKED).append(" ").append(edit.getText()).append("\n");
+                        //拓展字符串添加未打勾
                     }
                 }
             }
             mWorkingNote.setWorkingText(sb.toString());
+            //利用编辑好的字符串设置运行便签的内容
         } else {
             mWorkingNote.setWorkingText(mNoteEditor.getText().toString());
+            //若不是该模式直接用编辑器中的内容设置运行中标签的内容
         }
         return hasChecked;
     }
 
+    /*
+     *函数功能：保存便签
+     */
     private boolean saveNote() {
         getWorkingText();
         boolean saved = mWorkingNote.saveNote();
+        //运行getWorkingText()之后保存
         if (saved) {
             /**
              * There are two modes from List view to edit view, open one note,
@@ -821,6 +986,9 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         return saved;
     }
 
+    /*
+    函数功能：将变迁发送至桌面
+     */
     private void sendToDesktop() {
         /**
          * Before send message to home, we should make sure that current
@@ -829,12 +997,16 @@ public class NoteEditActivity extends Activity implements OnClickListener,
          */
         if (!mWorkingNote.existInDatabase()) {
             saveNote();
+            //若不存在数据也就是新的标签就保存起来先
         }
 
         if (mWorkingNote.getNoteId() > 0) {
+            //若是有内容
             Intent sender = new Intent();
             Intent shortcutIntent = new Intent(this, NoteEditActivity.class);
+            //建立发送到桌面的链接器
             shortcutIntent.setAction(Intent.ACTION_VIEW);
+            //链接为一个视图
             shortcutIntent.putExtra(Intent.EXTRA_UID, mWorkingNote.getNoteId());
             sender.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent);
             sender.putExtra(Intent.EXTRA_SHORTCUT_NAME,
@@ -842,9 +1014,12 @@ public class NoteEditActivity extends Activity implements OnClickListener,
             sender.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE,
                     Intent.ShortcutIconResource.fromContext(this, R.drawable.icon_app));
             sender.putExtra("duplicate", true);
+            //将便签的相关信息都添加到要发送的文件里
             sender.setAction("com.android.launcher.action.INSTALL_SHORTCUT");
+            //设置sender的行为是发送
             showToast(R.string.info_note_enter_desktop);
             sendBroadcast(sender);
+            //显示到桌面
         } else {
             /**
              * There is the condition that user has input nothing (the note is
@@ -853,20 +1028,28 @@ public class NoteEditActivity extends Activity implements OnClickListener,
              */
             Log.e(TAG, "Send to desktop error");
             showToast(R.string.error_note_empty_for_send_to_desktop);
+            //空便签直接报错
         }
     }
-
+    /*
+     *函数功能：编辑小图标的标题
+     */
     private String makeShortcutIconTitle(String content) {
         content = content.replace(TAG_CHECKED, "");
         content = content.replace(TAG_UNCHECKED, "");
         return content.length() > SHORTCUT_ICON_TITLE_MAX_LEN ? content.substring(0,
                 SHORTCUT_ICON_TITLE_MAX_LEN) : content;
+        //直接设置为content中的内容并返回，有勾选和未勾选2种
     }
-
+    /*
+     *函数功能：显示提示的视图
+     */
     private void showToast(int resId) {
         showToast(resId, Toast.LENGTH_SHORT);
     }
-
+    /*
+     *函数功能：持续显示提示的视图
+     */
     private void showToast(int resId, int duration) {
         Toast.makeText(this, resId, duration).show();
     }

doc/标注/210340081_杨申申/NoteEditText.java

@@ -45,7 +45,7 @@ public class NoteEditText extends EditText {
     private static final String SCHEME_TEL = "tel:" ;
     private static final String SCHEME_HTTP = "http:" ;
     private static final String SCHEME_EMAIL = "mailto:" ;
-
+    //建立一个字符和整数的hash表，用于链接电话，网站还有邮箱
     private static final Map<String, Integer> sSchemaActionResMap = new HashMap<String, Integer>();
     static {
         sSchemaActionResMap.put(SCHEME_TEL, R.string.note_link_tel);
@@ -61,12 +61,14 @@ public class NoteEditText extends EditText {
          * Delete current edit text when {@link KeyEvent#KEYCODE_DEL} happens
          * and the text is null
          */
+        //处理删除按键时的操作
         void onEditTextDelete(int index, String text);
 
         /**
          * Add edit text after current edit text when {@link KeyEvent#KEYCODE_ENTER}
          * happen
          */
+        //处理进入按键时的操作
         void onEditTextEnter(int index, String text);
 
         /**
@@ -76,33 +78,39 @@ public class NoteEditText extends EditText {
     }
 
     private OnTextViewChangeListener mOnTextViewChangeListener;
-
+    //根据context设置文本
     public NoteEditText(Context context) {
-        super(context, null);
+        super(context, null);//用super引发父类变量
         mIndex = 0;
     }
-
+    //设置当前光标
     public void setIndex(int index) {
         mIndex = index;
     }
-
+    //初始化文本修改标记
     public void setOnTextViewChangeListener(OnTextViewChangeListener listener) {
         mOnTextViewChangeListener = listener;
     }
-
+    //初始化标签
     public NoteEditText(Context context, AttributeSet attrs) {
         super(context, attrs, android.R.attr.editTextStyle);
     }
-
+    //根据defstyle自动初始化
     public NoteEditText(Context context, AttributeSet attrs, int defStyle) {
         super(context, attrs, defStyle);
         // TODO Auto-generated constructor stub
     }
 
     @Override
+    //view里的函数，处理手机屏幕的所有事件
+    /*
+    参数event为手机触摸事件封装类的对象，其中封装了该事件的所有信息，例如触摸的位置、时间、类型等。
+     */
     public boolean onTouchEvent(MotionEvent event) {
         switch (event.getAction()) {
+            //重写了需要处理屏幕被按下的时间
             case MotionEvent.ACTION_DOWN:
+                //更新当前坐标值
 
                 int x = (int) event.getX();
                 int y = (int) event.getY();
@@ -111,9 +119,11 @@ public class NoteEditText extends EditText {
                 x += getScrollX();
                 y += getScrollY();
 
+                //用布局控件layout根据xy的新值设置新的位置
                 Layout layout = getLayout();
                 int line = layout.getLineForVertical(y);
                 int off = layout.getOffsetForHorizontal(line, x);
+                //更新光标新的位置
                 Selection.setSelection(getText(), off);
                 break;
         }
@@ -122,96 +132,138 @@ public class NoteEditText extends EditText {
     }
 
     @Override
+    /*
+     *函数功能：处理用户按下一个键盘按键时会触发的事件
+     */
     public boolean onKeyDown(int keyCode, KeyEvent event) {
         switch (keyCode) {
+            //根据按键的Unicode编码值来处理
             case KeyEvent.KEYCODE_ENTER:
+                //“进入”按键
                 if (mOnTextViewChangeListener != null) {
                     return false;
                 }
                 break;
             case KeyEvent.KEYCODE_DEL:
+                //“删除”按键
                 mSelectionStartBeforeDelete = getSelectionStart();
                 break;
             default:
                 break;
         }
+        //继续执行父类的其他点击事件
         return super.onKeyDown(keyCode, event);
     }
 
     @Override
+    /*
+    函数功能：处理用户松开一个按键时会触发的事件
+     */
     public boolean onKeyUp(int keyCode, KeyEvent event) {
         switch(keyCode) {
+            //根据按键的Unicode编码值来处理，有删除和进入两种操作
             case KeyEvent.KEYCODE_DEL:
                 if (mOnTextViewChangeListener != null) {
+                    //若是被修改过
                     if (0 == mSelectionStartBeforeDelete && mIndex != 0) {
+                        //若之前有被修改并且文档不为空
                         mOnTextViewChangeListener.onEditTextDelete(mIndex, getText().toString());
+                        //利用上文ConTextViewChangeListener对KEYCODE_DEL按键情况的删除函数
                         return true;
                     }
                 } else {
                     Log.d(TAG, "OnTextViewChangeListener was not seted");
+                    //其他情况报错，文档的改动监听器并没有建立
                 }
                 break;
             case KeyEvent.KEYCODE_ENTER:
+                //同上也是分为监听器是否建立两种情况
                 if (mOnTextViewChangeListener != null) {
                     int selectionStart = getSelectionStart();
+                    //获取当前位置
                     String text = getText().subSequence(selectionStart, length()).toString();
+                    //获取当前文本
                     setText(getText().subSequence(0, selectionStart));
+                    //根据获取的文本设置当前文本
                     mOnTextViewChangeListener.onEditTextEnter(mIndex + 1, text);
                 } else {
                     Log.d(TAG, "OnTextViewChangeListener was not seted");
-                }
+                }//其他情况报错，文档的改动监听器并没有建立
                 break;
             default:
                 break;
         }
+        //继续执行父类的其他按键弹起的事件
         return super.onKeyUp(keyCode, event);
     }
 
     @Override
+    /*
+     *函数功能：当焦点发生变化时，会自动调用该方法来处理焦点改变的事件
+     * 参数：focused表示触发该事件的View是否获得了焦点，当该控件获得焦点时，focused等于true，否则等于false
+     * direction表示焦点移动的方向，用数值表示
+     * rect：表示在触发事件的View的坐标系中，前一个获得焦点的矩形区域，即表示焦点是从哪里来的。如果不可用则为null
+     */
     protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) {
         if (mOnTextViewChangeListener != null) {
+            //若监听器已建立
             if (!focused && TextUtils.isEmpty(getText())) {
+                //获取到焦点并且文本不为空
                 mOnTextViewChangeListener.onTextChange(mIndex, false);
+                //mOnTextViewChangListener子函数，置false隐藏事件选项
             } else {
                 mOnTextViewChangeListener.onTextChange(mIndex, true);
+                //mOnTextViewChangListener子函数，置true隐藏事件选项
             }
         }
+        //继续执行父类的其他焦点变化的事件
         super.onFocusChanged(focused, direction, previouslyFocusedRect);
     }
 
     @Override
+    /*
+     *函数功能：生产上下文菜单
+     */
     protected void onCreateContextMenu(ContextMenu menu) {
         if (getText() instanceof Spanned) {
+            //有文本存在
             int selStart = getSelectionStart();
             int selEnd = getSelectionEnd();
+            //获取文本开始和结尾位置
 
             int min = Math.min(selStart, selEnd);
             int max = Math.max(selStart, selEnd);
+            //获取开始到结尾的最大值和最小值
 
             final URLSpan[] urls = ((Spanned) getText()).getSpans(min, max, URLSpan.class);
+            //设置url的信息的范围值
             if (urls.length == 1) {
                 int defaultResId = 0;
                 for(String schema: sSchemaActionResMap.keySet()) {
                     if(urls[0].getURL().indexOf(schema) >= 0) {
+                        //若url可以添加则在添加后将defaultResId置为key所映射的值
                         defaultResId = sSchemaActionResMap.get(schema);
                         break;
                     }
                 }
 
                 if (defaultResId == 0) {
+                    //defaultResID==0则说明url并没有添加任何东西，所以置为连接其他SchemaActionResMap的值
                     defaultResId = R.string.note_link_other;
                 }
-
+                //建立菜单
                 menu.add(0, 0, 0, defaultResId).setOnMenuItemClickListener(
                         new OnMenuItemClickListener() {
+                            //新建按键监听器
                             public boolean onMenuItemClick(MenuItem item) {
                                 // goto a new intent
                                 urls[0].onClick(NoteEditText.this);
+                                //根据相应的文本设置菜单的按键
                                 return true;
                             }
                         });
             }
-        }
+        }//继续执行父类的其他菜单创建的事件
         super.onCreateContextMenu(menu);
     }
 }

doc/标注/210340081_杨申申/NoteItemData.java

@@ -42,6 +42,7 @@ public class NoteItemData {
         NoteColumns.WIDGET_TYPE,
     };
 
+    //常量标记和数据标记
     private static final int ID_COLUMN                    = 0;
     private static final int ALERTED_DATE_COLUMN          = 1;
     private static final int BG_COLOR_ID_COLUMN           = 2;
@@ -76,7 +77,9 @@ public class NoteItemData {
     private boolean mIsOneNoteFollowingFolder;
     private boolean mIsMultiNotesFollowingFolder;
 
+    //初始化NoteItemData,主要利用光标Cursor获取的东西
     public NoteItemData(Context context, Cursor cursor) {
+        //getxxx为转换格式
         mId = cursor.getLong(ID_COLUMN);
         mAlertDate = cursor.getLong(ALERTED_DATE_COLUMN);
         mBgColorId = cursor.getInt(BG_COLOR_ID_COLUMN);
@@ -95,7 +98,7 @@ public class NoteItemData {
         mPhoneNumber = "";
         if (mParentId == Notes.ID_CALL_RECORD_FOLDER) {
             mPhoneNumber = DataUtils.getCallNumberByNoteId(context.getContentResolver(), mId);
-            if (!TextUtils.isEmpty(mPhoneNumber)) {
+            if (!TextUtils.isEmpty(mPhoneNumber)) {//mphonenumber里有符合字符串，则用contart功能连接
                 mName = Contact.getContact(context, mPhoneNumber);
                 if (mName == null) {
                     mName = mPhoneNumber;
@@ -109,31 +112,34 @@ public class NoteItemData {
         checkPostion(cursor);
     }
 
+    //根据鼠标的位置设置标记和位置
     private void checkPostion(Cursor cursor) {
+        //初始化几个标记
         mIsLastItem = cursor.isLast() ? true : false;
         mIsFirstItem = cursor.isFirst() ? true : false;
         mIsOnlyOneItem = (cursor.getCount() == 1);
+        //初始化“多重子文件”“单一子文件”两个标记
         mIsMultiNotesFollowingFolder = false;
         mIsOneNoteFollowingFolder = false;
 
-        if (mType == Notes.TYPE_NOTE && !mIsFirstItem) {
+        //设置上述两个标记
+        if (mType == Notes.TYPE_NOTE && !mIsFirstItem) {//若是note格式并且不是第一个元素
             int position = cursor.getPosition();
-            if (cursor.moveToPrevious()) {
+            if (cursor.moveToPrevious()) {//获取光标位置后看上一行
                 if (cursor.getInt(TYPE_COLUMN) == Notes.TYPE_FOLDER
-                        || cursor.getInt(TYPE_COLUMN) == Notes.TYPE_SYSTEM) {
+                        || cursor.getInt(TYPE_COLUMN) == Notes.TYPE_SYSTEM) {//若光标满足系统或者note格式
                     if (cursor.getCount() > (position + 1)) {
-                        mIsMultiNotesFollowingFolder = true;
+                        mIsMultiNotesFollowingFolder = true;//若是数据行数大于但前位置+1则设置成正确
                     } else {
-                        mIsOneNoteFollowingFolder = true;
+                        mIsOneNoteFollowingFolder = true;//否则单一文件夹标记为true
                     }
                 }
-                if (!cursor.moveToNext()) {
+                if (!cursor.moveToNext()) {//若不能再往下走则报错
                     throw new IllegalStateException("cursor move to previous but can't move back");
                 }
             }
         }
     }
-
     public boolean isOneFollowingFolder() {
         return mIsOneNoteFollowingFolder;
     }
@@ -214,6 +220,7 @@ public class NoteItemData {
         return (mAlertDate > 0);
     }
 
+    //若数据父id为保存文件夹模式的id且满足电话号码单元不为空，则isCallRecord为true
     public boolean isCallRecord() {
         return (mParentId == Notes.ID_CALL_RECORD_FOLDER && !TextUtils.isEmpty(mPhoneNumber));
     }

doc/标注/210340081_杨申申/NotesListActivity.java

@@ -78,6 +78,7 @@ import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.util.HashSet;
 
+//主界面
 public class NotesListActivity extends Activity implements OnClickListener, OnItemLongClickListener {
     private static final int FOLDER_NOTE_LIST_QUERY_TOKEN = 0;
 
@@ -136,8 +137,14 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
     private final static int REQUEST_CODE_NEW_NODE  = 103;
 
     @Override
+    //创建类
     protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
+        //final类不能被继承，没有子类，final类中的方法默认是final
+        //final方法不能被子类的方法覆盖，但可以被继承
+        //final成员变量表示常量，只能被赋值一次，赋值后值不再改变
+        //final不能用于修饰构造方法
+
+        super.onCreate(savedInstanceState);//调用父类的onCreate函数
         setContentView(R.layout.note_list);
         initResources();
 
@@ -148,26 +155,32 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
     }
 
     @Override
+    //返回一些子模块完成的数据交给Activity处理
     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        //结果值和要求值符合要求
         if (resultCode == RESULT_OK
                 && (requestCode == REQUEST_CODE_OPEN_NODE || requestCode == REQUEST_CODE_NEW_NODE)) {
             mNotesListAdapter.changeCursor(null);
         } else {
             super.onActivityResult(requestCode, resultCode, data);
+            //调用Activity的onActivityResult()
         }
     }
 
     private void setAppInfoFromRawRes() {
+        //Android平台给我们提供了一个SharedPreferences类，它是一个轻量级的存储类，特别适合用于保存软件配置参数。
         SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);
         if (!sp.getBoolean(PREFERENCE_ADD_INTRODUCTION, false)) {
             StringBuilder sb = new StringBuilder();
             InputStream in = null;
             try {
+                //把资源文件放到应用程序的/raw/raw下，那么就可以在应用中使用getResources获取资源后，
+                //以openRawResource方法（不带后缀的资源文件名）打开这文件
                  in = getResources().openRawResource(R.raw.introduction);
                 if (in != null) {
                     InputStreamReader isr = new InputStreamReader(in);
                     BufferedReader br = new BufferedReader(isr);
-                    char [] buf = new char[1024];
+                    char [] buf = new char[1024];//自行定义的数值，使用者不知道有什么意义
                     int len = 0;
                     while ((len = br.read(buf)) > 0) {
                         sb.append(buf, 0, len);
@@ -189,12 +202,13 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
                     }
                 }
             }
-
+            //创建空的WorkingNote
             WorkingNote note = WorkingNote.createEmptyNote(this, Notes.ID_ROOT_FOLDER,
                     AppWidgetManager.INVALID_APPWIDGET_ID, Notes.TYPE_WIDGET_INVALIDE,
                     ResourceParser.RED);
             note.setWorkingText(sb.toString());
             if (note.saveNote()) {
+                //更新保存Note的信息
                 sp.edit().putBoolean(PREFERENCE_ADD_INTRODUCTION, true).commit();
             } else {
                 Log.e(TAG, "Save introduction note error");
@@ -209,18 +223,20 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
         startAsyncNotesListQuery();
     }
 
+    //初始化资源
     private void initResources() {
-        mContentResolver = this.getContentResolver();
+        mContentResolver = this.getContentResolver();//获取应用程序的数据，得到类似数据表的东西
         mBackgroundQueryHandler = new BackgroundQueryHandler(this.getContentResolver());
         mCurrentFolderId = Notes.ID_ROOT_FOLDER;
-        mNotesListView = (ListView) findViewById(R.id.notes_list);
+        //findViewById是安卓编程的定位函数，主要引用.R文件里的引用名
+        mNotesListView = (ListView) findViewById(R.id.notes_list);//绑定XML中的ListView,作为Item的容器
         mNotesListView.addFooterView(LayoutInflater.from(this).inflate(R.layout.note_list_footer, null),
                 null, false);
         mNotesListView.setOnItemClickListener(new OnListItemClickListener());
         mNotesListView.setOnItemLongClickListener(this);
         mNotesListAdapter = new NotesListAdapter(this);
         mNotesListView.setAdapter(mNotesListAdapter);
-        mAddNewNote = (Button) findViewById(R.id.btn_new_note);
+        mAddNewNote = (Button) findViewById(R.id.btn_new_note);//在activity中要获取该按钮
         mAddNewNote.setOnClickListener(this);
         mAddNewNote.setOnTouchListener(new NewNoteOnTouchListener());
         mDispatch = false;
@@ -231,6 +247,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
         mModeCallBack = new ModeCallback();
     }
 
+    //继承来自ListView.MultiChoiceModeListener和OnMenuItemClickListener
     private class ModeCallback implements ListView.MultiChoiceModeListener, OnMenuItemClickListener {
         private DropdownMenu mDropDownMenu;
         private ActionMode mActionMode;
@@ -269,11 +286,12 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
             return true;
         }
 
+        //更新菜单
         private void updateMenu() {
             int selectedCount = mNotesListAdapter.getSelectedCount();
             // Update dropdown menu
             String format = getResources().getString(R.string.menu_select_title, selectedCount);
-            mDropDownMenu.setTitle(format);
+            mDropDownMenu.setTitle(format);//更改标题
             MenuItem item = mDropDownMenu.findItem(R.id.action_select_all);
             if (item != null) {
                 if (mNotesListAdapter.isAllSelected()) {
@@ -663,7 +681,9 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
             }
         });
     }
-
+    /*
+    *按返回键时根据情况更改类中的数据
+     */
     @Override
     public void onBackPressed() {
         switch (mState) {
@@ -687,7 +707,9 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
                 break;
         }
     }
-
+    /*
+     *根据不同类型的widget更新插件，通过intent传送数据
+     */
     private void updateWidget(int appWidgetId, int appWidgetType) {
         Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
         if (appWidgetType == Notes.TYPE_WIDGET_2X) {
@@ -706,7 +728,9 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
         sendBroadcast(intent);
         setResult(RESULT_OK, intent);
     }
-
+    /*
+    *声明监听器，建立菜单，包括名称，视图，删除操作，更改名称操作
+     */
     private final OnCreateContextMenuListener mFolderOnCreateContextMenuListener = new OnCreateContextMenuListener() {
         public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
             if (mFocusNoteDataItem != null) {
@@ -719,6 +743,9 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
     };
 
     @Override
+    /*
+     *针对menu中不同的选择进行不同的处理
+     */
     public void onContextMenuClosed(Menu menu) {
         if (mNotesListView != null) {
             mNotesListView.setOnCreateContextMenuListener(null);
@@ -734,10 +761,10 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
         }
         switch (item.getItemId()) {
             case MENU_FOLDER_VIEW:
-                openFolder(mFocusNoteDataItem);
+                openFolder(mFocusNoteDataItem);//打开对应文件
                 break;
             case MENU_FOLDER_DELETE:
-                AlertDialog.Builder builder = new AlertDialog.Builder(this);
+                AlertDialog.Builder builder = new AlertDialog.Builder(this);//设置确认是否删除的对话框
                 builder.setTitle(getString(R.string.alert_title_delete));
                 builder.setIcon(android.R.drawable.ic_dialog_alert);
                 builder.setMessage(getString(R.string.alert_message_delete_folder));
@@ -748,7 +775,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
                             }
                         });
                 builder.setNegativeButton(android.R.string.cancel, null);
-                builder.show();
+                builder.show();//显示对话框
                 break;
             case MENU_FOLDER_CHANGE_NAME:
                 showCreateOrModifyFolderDialog(false);
@@ -818,12 +845,18 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
         return true;
     }
 
+    /*
+    //直接调用startSearch函数
+     */
     @Override
     public boolean onSearchRequested() {
         startSearch(null, false, null /* appData */, false);
         return true;
     }
 
+    /*
+     *函数功能：实现将便签导出文本功能
+     */
     private void exportNoteToText() {
         final BackupUtils backup = BackupUtils.getInstance(NotesListActivity.this);
         new AsyncTask<Void, Void, Integer>() {
@@ -865,17 +898,24 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
 
         }.execute();
     }
-
+    /*
+     *功能：判断是否正在同步
+     */
     private boolean isSyncMode() {
         return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0;
     }
-
+    /*
+     *功能：跳转到PreferenceActivity界面
+     */
     private void startPreferenceActivity() {
         Activity from = getParent() != null ? getParent() : this;
         Intent intent = new Intent(from, NotesPreferenceActivity.class);
         from.startActivityIfNeeded(intent, -1);
     }
 
+    /*
+     *函数功能：实现对便签列表项的点击事件（短按）
+     */
     private class OnListItemClickListener implements OnItemClickListener {
 
         public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
@@ -917,6 +957,9 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
 
     }
 
+    /*
+     *查询目标文件
+     */
     private void startQueryDestinationFolders() {
         String selection = NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>? AND " + NoteColumns.ID + "<>?";
         selection = (mState == ListEditState.NOTE_LIST) ? selection:
@@ -934,7 +977,10 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
                 },
                 NoteColumns.MODIFIED_DATE + " DESC");
     }
-
+    /*
+     *如果长按的是便签，则通过ActionMode菜单实现；如果长按的是文件夹，则通过ContextMenu菜单实现；
+     * 具体ActionMode菜单和ContextMenu菜单的详细见精度笔记
+     */
     public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
         if (view instanceof NotesListItem) {
             mFocusNoteDataItem = ((NotesListItem) view).getItemData();

doc/标注/210340081_杨申申/NotesListAdapter.java

@@ -30,19 +30,28 @@ import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Iterator;
 
-
+    /*
+     *功能：便签表链接器，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
+     */
 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;//便签署
+    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;
     };
 
+    /*
+     *函数功能：初始化便签链接器
+     */
     public NotesListAdapter(Context context) {
         super(context, null);
         mSelectedIndex = new HashMap<Integer, Boolean>();
@@ -51,35 +60,55 @@ public class NotesListAdapter extends CursorAdapter {
     }
 
     @Override
+    /*
+     *函数功能：新建一个视图来存储光标所指向的数据
+     */
     public View newView(Context context, Cursor cursor, ViewGroup parent) {
         return new NotesListItem(context);
     }
 
     @Override
+    /*
+     *函数功能：将已经存在的视图和鼠标指向的数据进行捆绑
+     */
     public void bindView(View view, Context context, Cursor cursor) {
         if (view instanceof NotesListItem) {
             NoteItemData itemData = new NoteItemData(context, cursor);
             ((NotesListItem) view).bind(context, itemData, mChoiceMode,
                     isSelectedItem(cursor.getPosition()));
+            //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
         }
     }
 
+    /*
+     *函数功能：设置勾选框
+     */
     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
     }
-
+    /*
+     *函数功能：判断单选按钮是否勾选
+     */
     public boolean isInChoiceMode() {
         return mChoiceMode;
     }
 
+    /*
+     *函数功能：设置单选选项框
+     */
     public void setChoiceMode(boolean mode) {
         mSelectedIndex.clear();
         mChoiceMode = mode;
     }
-
+    /*
+     *函数功能：选择全部选项
+     */
     public void selectAll(boolean checked) {
         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) {
@@ -87,24 +116,35 @@ public class NotesListAdapter extends CursorAdapter {
                 }
             }
         }
+        //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
     }
-
+    /*
+     *函数功能：建立选项的下标列表
+     */
     public HashSet<Long> getSelectedItemIds() {
         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);
                 }
+
             }
         }
 
         return itemSet;
     }
 
+    /*
+     *函数功能：建立桌面Widget的选项表
+     */
     public HashSet<AppWidgetAttribute> getSelectedWidget() {
         HashSet<AppWidgetAttribute> itemSet = new HashSet<AppWidgetAttribute>();
         for (Integer position : mSelectedIndex.keySet()) {
@@ -128,12 +168,17 @@ public class NotesListAdapter extends CursorAdapter {
         return itemSet;
     }
 
+    /*
+     *函数功能：获取选项个数
+     */
     public int getSelectedCount() {
         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();
+        //初始化叠加器
         int count = 0;
         while (iter.hasNext()) {
             if (true == iter.next()) {
@@ -142,12 +187,17 @@ public class NotesListAdapter extends CursorAdapter {
         }
         return count;
     }
-
+    /*
+     *函数功能：判断是否全部选中
+     */
     public boolean isAllSelected() {
         int checkedCount = getSelectedCount();
         return (checkedCount != 0 && checkedCount == mNotesCount);
+        //获取选项数看是否等于便签的个数
     }
-
+    /*
+     *函数功能：判断是否为选项表
+     */
     public boolean isSelectedItem(final int position) {
         if (null == mSelectedIndex.get(position)) {
             return false;
@@ -156,29 +206,42 @@ public class NotesListAdapter extends CursorAdapter {
     }
 
     @Override
+    /*
+     *函数功能：在activity内容发生局部变动的适合回调该函数计算便签的数量
+     */
     protected void onContentChanged() {
         super.onContentChanged();
+        //执行基类函数
         calcNotesCount();
     }
-
+    /*
+     *函数功能：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
+     */
     @Override
     public void changeCursor(Cursor cursor) {
         super.changeCursor(cursor);
+        //执行基类函数
         calcNotesCount();
     }
 
+    /*
+     *函数功能：计算便签数量
+     */
     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++;
+                    //若该位置不为空并且文本类型为便签就+1
                 }
             } else {
                 Log.e(TAG, "Invalid cursor");
                 return;
             }
+            //否则报错
         }
     }
 }

doc/标注/210340086_赵军杰/AlarmAlertActivity.java

@@ -41,56 +41,69 @@ import java.io.IOException;
 
 
 public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener {
-    private long mNoteId;
-    private String mSnippet;
+    private long mNoteId; //文本在数据库存储中的ID号
+    private String mSnippet; //闹钟提示时出现的文本片段
     private static final int SNIPPET_PREW_MAX_LEN = 60;
     MediaPlayer mPlayer;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+        //Bundle类型的数据与Map类型的数据相似，都是以key-value的形式存储数据的
+        //onsaveInstanceState方法是用来保存Activity的状态的
+        //能从onCreate的参数savedInsanceState中获得状态数据
         requestWindowFeature(Window.FEATURE_NO_TITLE);
+        //界面显示——无标题
 
         final Window win = getWindow();
         win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
 
         if (!isScreenOn()) {
             win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
+                    //保持窗体点亮
                     | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON
+                    //将窗体点亮
                     | WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON
+                    //允许窗体点亮时锁屏
                     | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR);
-        }
+        }//在手机锁屏后如果到了闹钟提示时间，点亮屏幕
 
         Intent intent = getIntent();
 
         try {
             mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1));
             mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId);
+            //根据ID从数据库中获取标签的内容；
+            //getContentResolver（）是实现数据共享，实例存储。
             mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0,
                     SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info)
                     : mSnippet;
+            //判断标签片段是否达到符合长度
         } catch (IllegalArgumentException e) {
             e.printStackTrace();
             return;
         }
+        //代码区如果有错误，就会返回所写异常的处理。
 
         mPlayer = new MediaPlayer();
         if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) {
-            showActionDialog();
-            playAlarmSound();
+            showActionDialog(); //弹出对话框
+            playAlarmSound(); //闹钟提示音激发
         } else {
-            finish();
+            finish(); //完成闹钟动作
         }
     }
 
     private boolean isScreenOn() {
+        //判断屏幕是否锁屏，调用系统函数判断，最后返回值是布尔类型
         PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
         return pm.isScreenOn();
     }
 
     private void playAlarmSound() {
+        //闹钟提示音激发
         Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM);
-
+        //调用系统的铃声管理URI，得到闹钟提示音
         int silentModeStreams = Settings.System.getInt(getContentResolver(),
                 Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0);
 
@@ -101,12 +114,16 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
         }
         try {
             mPlayer.setDataSource(this, url);
-            mPlayer.prepare();
-            mPlayer.setLooping(true);
-            mPlayer.start();
+            //方法：setDataSource(Context context, Uri uri)
+            //解释：无返回值，设置多媒体数据
+            mPlayer.prepare(); //准备同步
+            mPlayer.setLooping(true); //设置是否循环播放
+            mPlayer.start(); //开始播放
         } catch (IllegalArgumentException e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
+            //e.printStackTrace()函数功能是抛出异常， 还将显示出更深的调用信息
+            //System.out.println(e)，这个方法打印出异常，并且输出在哪里出现的异常
         } catch (SecurityException e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
@@ -121,22 +138,33 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
 
     private void showActionDialog() {
         AlertDialog.Builder dialog = new AlertDialog.Builder(this);
-        dialog.setTitle(R.string.app_name);
-        dialog.setMessage(mSnippet);
-        dialog.setPositiveButton(R.string.notealert_ok, this);
+        //AlertDialog的构造方法全部是Protected的
+        //所以不能直接通过new一个AlertDialog来创建出一个AlertDialog。
+        //要创建一个AlertDialog，就要用到AlertDialog.Builder中的create()方法
+        //如这里的dialog就是新建了一个AlertDialog
+        dialog.setTitle(R.string.app_name); //为对话框设置标题
+        dialog.setMessage(mSnippet); //为对话框设置内容
+        dialog.setPositiveButton(R.string.notealert_ok, this); //给对话框添加"Yes"按钮
         if (isScreenOn()) {
             dialog.setNegativeButton(R.string.notealert_enter, this);
-        }
+        } //对话框添加"No"按钮
         dialog.show().setOnDismissListener(this);
     }
 
     public void onClick(DialogInterface dialog, int which) {
         switch (which) {
+            //用which来选择click后下一步的操作
             case DialogInterface.BUTTON_NEGATIVE:
+                //这是取消操作
                 Intent intent = new Intent(this, NoteEditActivity.class);
+                //实现两个类间的数据传输
                 intent.setAction(Intent.ACTION_VIEW);
+                //设置动作属性
                 intent.putExtra(Intent.EXTRA_UID, mNoteId);
+                //实现key-value对
+                //EXTRA_UID为key；mNoteId为键
                 startActivity(intent);
+                //开始动作
                 break;
             default:
                 break;
@@ -144,14 +172,19 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
     }
 
     public void onDismiss(DialogInterface dialog) {
+        //忽略
         stopAlarmSound();
+        //停止闹钟声音
         finish();
+        //完成该动作
     }
 
     private void stopAlarmSound() {
         if (mPlayer != null) {
             mPlayer.stop();
+            //停止播放
             mPlayer.release();
+            //释放MediaPlayer对象
             mPlayer = null;
         }
     }

doc/标注/210340086_赵军杰/AlarmInitReceiver.java

@@ -34,18 +34,22 @@ public class AlarmInitReceiver extends BroadcastReceiver {
         NoteColumns.ID,
         NoteColumns.ALERTED_DATE
     };
-
+    //对数据库的操作，调用标签ID和闹钟时间
     private static final int COLUMN_ID                = 0;
     private static final int COLUMN_ALERTED_DATE      = 1;
 
     @Override
     public void onReceive(Context context, Intent intent) {
         long currentDate = System.currentTimeMillis();
+        //System.currentTimeMillis()产生一个当前的毫秒
+        //这个毫秒其实就是自1970年1月1日0时起的毫秒数
         Cursor c = context.getContentResolver().query(Notes.CONTENT_NOTE_URI,
                 PROJECTION,
                 NoteColumns.ALERTED_DATE + ">? AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE,
                 new String[] { String.valueOf(currentDate) },
+                //将long变量currentDate转化为字符串
                 null);
+        //Cursor在这里的作用是通过查找数据库中的标签内容，找到和当前系统时间相等的标签
 
         if (c != null) {
             if (c.moveToFirst()) {

doc/标注/210340086_赵军杰/AlarmReceiver.java

@@ -23,8 +23,12 @@ import android.content.Intent;
 public class AlarmReceiver extends BroadcastReceiver {
     @Override
     public void onReceive(Context context, Intent intent) {
-        intent.setClass(context, AlarmAlertActivity.class);
+        intent.setClass(context, AlarmAlertActivity.class); //启动AlarmAlertActivity
         intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        //activity要存在于activity的栈中，而非activity的途径启动activity时必然不存在一个activity的栈
+        //所以要新起一个栈装入启动的activity
         context.startActivity(intent);
     }
 }
+//这是实现alarm这个功能最接近用户层的包，基于上面的两个包，
+//作用还需要深究但是对于setClass和addFlags的

doc/标注/210340086_赵军杰/BackupUtils.java

@@ -42,7 +42,12 @@ public class BackupUtils {
     private static BackupUtils sInstance;
 
     public static synchronized BackupUtils getInstance(Context context) {
+        //ynchronized 关键字，代表这个方法加锁,相当于不管哪一个线程（例如线程A）
+        //运行到这个方法时,都要检查有没有其它线程B（或者C、 D等）正在用这个方法(或者该类的其他同步方法)，
+        //有的话要等正在使用synchronized方法的线程B（或者C 、D）运行完这个方法后再运行此线程A,
+        // 没有的话,锁定调用者,然后直接运行。
         if (sInstance == null) {
+            //如果当前备份不存在，则新声明一个
             sInstance = new BackupUtils(context);
         }
         return sInstance;
@@ -52,24 +57,24 @@ public class BackupUtils {
      * Following states are signs to represents backup or restore
      * status
      */
-    // Currently, the sdcard is not mounted
+    // Currently, the sdcard is not mounted SD卡没有被装入手机
     public static final int STATE_SD_CARD_UNMOUONTED           = 0;
-    // The backup file not exist
+    // The backup file not exist 备份文件夹不存在
     public static final int STATE_BACKUP_FILE_NOT_EXIST        = 1;
-    // The data is not well formated, may be changed by other programs
+    // The data is not well formated, may be changed by other programs 数据已被破坏，可能被修改
     public static final int STATE_DATA_DESTROIED               = 2;
-    // Some run-time exception which causes restore or backup fails
+    // Some run-time exception which causes restore or backup fails 超时异常
     public static final int STATE_SYSTEM_ERROR                 = 3;
-    // Backup or restore success
+    // Backup or restore success 成功存储
     public static final int STATE_SUCCESS                      = 4;
 
     private TextExport mTextExport;
 
-    private BackupUtils(Context context) {
+    private BackupUtils(Context context) { //初始化函数
         mTextExport = new TextExport(context);
     }
 
-    private static boolean externalStorageAvailable() {
+    private static boolean externalStorageAvailable() { //外部存储功能是否可用
         return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
     }
 
@@ -132,7 +137,7 @@ public class BackupUtils {
             mFileDirectory = "";
         }
 
-        private String getFormat(int id) {
+        private String getFormat(int id) { //获取文本的组成部分
             return TEXT_FORMAT[id];
         }
 
@@ -140,7 +145,7 @@ public class BackupUtils {
          * Export the folder identified by folder id to text
          */
         private void exportFolderToText(String folderId, PrintStream ps) {
-            // Query notes belong to this folder
+            // Query notes belong to this folder 通过查询parent id是文件夹id的note来选出制定ID文件夹下的Note
             Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI,
                     NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[] {
                         folderId
@@ -149,13 +154,13 @@ public class BackupUtils {
             if (notesCursor != null) {
                 if (notesCursor.moveToFirst()) {
                     do {
-                        // Print note's last modified date
+                        // Print note's last modified date ps里面保存有这份note的日期
                         ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format(
                                 mContext.getString(R.string.format_datetime_mdhm),
                                 notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE))));
                         // Query data belong to this note
                         String noteId = notesCursor.getString(NOTE_COLUMN_ID);
-                        exportNoteToText(noteId, ps);
+                        exportNoteToText(noteId, ps); //将文件导出到text
                     } while (notesCursor.moveToNext());
                 }
                 notesCursor.close();
@@ -171,7 +176,7 @@ public class BackupUtils {
                         noteId
                     }, null);
 
-            if (dataCursor != null) {
+            if (dataCursor != null) { //利用光标来扫描内容，区别为callnote和note两种，靠ps.printline输出
                 if (dataCursor.moveToFirst()) {
                     do {
                         String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE);
@@ -181,7 +186,7 @@ public class BackupUtils {
                             long callDate = dataCursor.getLong(DATA_COLUMN_CALL_DATE);
                             String location = dataCursor.getString(DATA_COLUMN_CONTENT);
 
-                            if (!TextUtils.isEmpty(phoneNumber)) {
+                            if (!TextUtils.isEmpty(phoneNumber)) { //判断是否为空字符
                                 ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
                                         phoneNumber));
                             }
@@ -218,7 +223,7 @@ public class BackupUtils {
         /**
          * Note will be exported as text which is user readable
          */
-        public int exportToText() {
+        public int exportToText() { //总函数，调用上面的exportFolder和exportNote
             if (!externalStorageAvailable()) {
                 Log.d(TAG, "Media was not mounted");
                 return STATE_SD_CARD_UNMOUONTED;
@@ -229,7 +234,7 @@ public class BackupUtils {
                 Log.e(TAG, "get print stream error");
                 return STATE_SYSTEM_ERROR;
             }
-            // First export folder and its notes
+            // First export folder and its notes  导出文件夹，就是导出里面包含的便签
             Cursor folderCursor = mContext.getContentResolver().query(
                     Notes.CONTENT_NOTE_URI,
                     NOTE_PROJECTION,
@@ -257,7 +262,7 @@ public class BackupUtils {
                 folderCursor.close();
             }
 
-            // Export notes in root's folder
+            // Export notes in root's folder 将根目录里的便签导出（由于不属于任何文件夹，因此无法通过文件夹导出来实现这一部分便签的导出）
             Cursor noteCursor = mContext.getContentResolver().query(
                     Notes.CONTENT_NOTE_URI,
                     NOTE_PROJECTION,
@@ -297,7 +302,7 @@ public class BackupUtils {
             PrintStream ps = null;
             try {
                 FileOutputStream fos = new FileOutputStream(file);
-                ps = new PrintStream(fos);
+                ps = new PrintStream(fos); //将ps输出流输出到特定的文件，目的就是导出到文件，而不是直接输出
             } catch (FileNotFoundException e) {
                 e.printStackTrace();
                 return null;
@@ -314,16 +319,16 @@ public class BackupUtils {
      */
     private static File generateFileMountedOnSDcard(Context context, int filePathResId, int fileNameFormatResId) {
         StringBuilder sb = new StringBuilder();
-        sb.append(Environment.getExternalStorageDirectory());
-        sb.append(context.getString(filePathResId));
-        File filedir = new File(sb.toString());
+        sb.append(Environment.getExternalStorageDirectory()); //外部（SD卡）的存储路径
+        sb.append(context.getString(filePathResId)); //文件的存储路径
+        File filedir = new File(sb.toString()); //我觉得filedir就是用来存储路径信息
         sb.append(context.getString(
                 fileNameFormatResId,
                 DateFormat.format(context.getString(R.string.format_date_ymd),
                         System.currentTimeMillis())));
         File file = new File(sb.toString());
 
-        try {
+        try { //如果这些文件不存在，那么就新建
             if (!filedir.exists()) {
                 filedir.mkdir();
             }
@@ -336,7 +341,7 @@ public class BackupUtils {
         } catch (IOException e) {
             e.printStackTrace();
         }
-
+// try catch 异常处理
         return null;
     }
 }

doc/标注/210340086_赵军杰/DataUtils.java

@@ -37,7 +37,7 @@ import java.util.HashSet;
 
 public class DataUtils {
     public static final String TAG = "DataUtils";
-    public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) {
+    public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) { //直接删除多个笔记
         if (ids == null) {
             Log.d(TAG, "the ids is null");
             return true;
@@ -47,18 +47,19 @@ public class DataUtils {
             return true;
         }
 
-        ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
+        ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>(); //提供一个任务列表
         for (long id : ids) {
             if(id == Notes.ID_ROOT_FOLDER) {
                 Log.e(TAG, "Don't delete system folder root");
                 continue;
-            }
+            } //如果发现是根文件夹，则不删除
             ContentProviderOperation.Builder builder = ContentProviderOperation
-                    .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
+                    .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); //用newDelete实现删除功能
             operationList.add(builder.build());
         }
-        try {
+        try { //下面这一行是主机名，用于唯一标识这个ContentProvider，外部调用者可以根据这个标识来找到它。
             ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
+            //数据库事务，数据库事务是由一组数据库操作序列组成，事务作为一个整体被执行
             if (results == null || results.length == 0 || results[0] == null) {
                 Log.d(TAG, "delete notes failed, ids:" + ids.toString());
                 return false;
@@ -77,7 +78,7 @@ public class DataUtils {
         values.put(NoteColumns.PARENT_ID, desFolderId);
         values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId);
         values.put(NoteColumns.LOCAL_MODIFIED, 1);
-        resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null);
+        resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null);  //对需要移动的便签进行数据更新，再用update实现
     }
 
     public static boolean batchMoveToFolder(ContentResolver resolver, HashSet<Long> ids,
@@ -90,14 +91,15 @@ public class DataUtils {
         ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
         for (long id : ids) {
             ContentProviderOperation.Builder builder = ContentProviderOperation
-                    .newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
+                    .newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); //通过withAppendedId方法，为该Uri加上ID
             builder.withValue(NoteColumns.PARENT_ID, folderId);
             builder.withValue(NoteColumns.LOCAL_MODIFIED, 1);
             operationList.add(builder.build());
+            //将ids里包含的每一列的数据逐次加入到operationList中，然后等待最后的批量处理
         }
 
         try {
-            ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
+            ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); //applyBatch一次性处理一个操作列表
             if (results == null || results.length == 0 || results[0] == null) {
                 Log.d(TAG, "delete notes failed, ids:" + ids.toString());
                 return false;
@@ -119,7 +121,7 @@ public class DataUtils {
                 new String[] { "COUNT(*)" },
                 NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?",
                 new String[] { String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)},
-                null);
+                null); //筛选条件：源文件不为trash folder
 
         int count = 0;
         if(cursor != null) {
@@ -137,15 +139,15 @@ public class DataUtils {
     }
 
     public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) {
-        Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
+        Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), //通过withAppendedId方法，为该Uri加上ID
                 null,
                 NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER,
                 new String [] {String.valueOf(type)},
-                null);
+                null); //查询条件：type符合，且不属于垃圾文件夹
 
         boolean exist = false;
         if (cursor != null) {
-            if (cursor.getCount() > 0) {
+            if (cursor.getCount() > 0) { //用getcount函数去判断cursor是否为空
                 exist = true;
             }
             cursor.close();
@@ -187,6 +189,7 @@ public class DataUtils {
                 " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER +
                 " AND " + NoteColumns.SNIPPET + "=?",
                 new String[] { name }, null);
+        //通过名字查询文件是否存在
         boolean exist = false;
         if(cursor != null) {
             if(cursor.getCount() > 0) {
@@ -202,7 +205,7 @@ public class DataUtils {
                 new String[] { NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE },
                 NoteColumns.PARENT_ID + "=?",
                 new String[] { String.valueOf(folderId) },
-                null);
+                null); //查询条件：父ID是传入的folderId;
 
         HashSet<AppWidgetAttribute> set = null;
         if (c != null) {
@@ -211,13 +214,13 @@ public class DataUtils {
                 do {
                     try {
                         AppWidgetAttribute widget = new AppWidgetAttribute();
-                        widget.widgetId = c.getInt(0);
-                        widget.widgetType = c.getInt(1);
+                        widget.widgetId = c.getInt(0); //0对应的NoteColumns.WIDGET_ID
+                        widget.widgetType = c.getInt(1); //1对应的NoteColumns.WIDGET_TYPE
                         set.add(widget);
                     } catch (IndexOutOfBoundsException e) {
                         Log.e(TAG, e.toString());
                     }
-                } while (c.moveToNext());
+                } while (c.moveToNext()); //查询下一条
             }
             c.close();
         }
@@ -250,11 +253,12 @@ public class DataUtils {
                 + CallNote.PHONE_NUMBER + ",?)",
                 new String [] { String.valueOf(callDate), CallNote.CONTENT_ITEM_TYPE, phoneNumber },
                 null);
+        //通过数据库操作，查询条件是（callDate和phoneNumber匹配传入参数的值）
 
         if (cursor != null) {
             if (cursor.moveToFirst()) {
                 try {
-                    return cursor.getLong(0);
+                    return cursor.getLong(0); //0对应的CallNote.NOTE_ID
                 } catch (IndexOutOfBoundsException e) {
                     Log.e(TAG, "Get call note id fails " + e.toString());
                 }
@@ -269,7 +273,7 @@ public class DataUtils {
                 new String [] { NoteColumns.SNIPPET },
                 NoteColumns.ID + "=?",
                 new String [] { String.valueOf(noteId)},
-                null);
+                null); //查询条件：noteId
 
         if (cursor != null) {
             String snippet = "";
@@ -282,7 +286,7 @@ public class DataUtils {
         throw new IllegalArgumentException("Note is not found with id: " + noteId);
     }
 
-    public static String getFormattedSnippet(String snippet) {
+    public static String getFormattedSnippet(String snippet) { //对字符串进行格式处理，将字符串两头的空格去掉，同时将换行符去掉
         if (snippet != null) {
             snippet = snippet.trim();
             int index = snippet.indexOf('\n');

doc/标注/210340086_赵军杰/DateTimePicker.java

@@ -29,6 +29,8 @@ import android.widget.FrameLayout;
 import android.widget.NumberPicker;
 
 public class DateTimePicker extends FrameLayout {
+    //FrameLayout是布局模板之一
+    //所有的子元素全部在屏幕的右上方
 
     private static final boolean DEFAULT_ENABLE_STATE = true;
 
@@ -46,11 +48,15 @@ public class DateTimePicker extends FrameLayout {
     private static final int AMPM_SPINNER_MIN_VAL = 0;
     private static final int AMPM_SPINNER_MAX_VAL = 1;
 
+    //初始化控件
     private final NumberPicker mDateSpinner;
     private final NumberPicker mHourSpinner;
     private final NumberPicker mMinuteSpinner;
     private final NumberPicker mAmPmSpinner;
+    //NumberPicker是数字选择器
+    //这里定义的四个变量全部是在设置闹钟时需要选择的变量（如日期、时、分、上午或者下午）
     private Calendar mDate;
+    //定义了Calendar类型的变量mDate，用于操作时间
 
     private String[] mDateDisplayValues = new String[DAYS_IN_ALL_WEEK];
 
@@ -71,41 +77,49 @@ public class DateTimePicker extends FrameLayout {
             updateDateControl();
             onDateTimeChanged();
         }
-    };
+    };//OnValueChangeListener，这是时间改变监听器，这里主要是对日期的监听
+    //将现在日期的值传递给mDate；updateDateControl是同步操作
 
     private NumberPicker.OnValueChangeListener mOnHourChangedListener = new NumberPicker.OnValueChangeListener() {
+        //这里是对 小时（Hour） 的监听
         @Override
         public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
             boolean isDateChanged = false;
             Calendar cal = Calendar.getInstance();
+            //声明一个Calendar的变量cal，便于后续的操作
             if (!mIs24HourView) {
                 if (!mIsAm && oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY) {
                     cal.setTimeInMillis(mDate.getTimeInMillis());
                     cal.add(Calendar.DAY_OF_YEAR, 1);
                     isDateChanged = true;
+                    //这里是对于12小时制时，晚上11点和12点交替时对日期的更改
                 } else if (mIsAm && oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) {
                     cal.setTimeInMillis(mDate.getTimeInMillis());
                     cal.add(Calendar.DAY_OF_YEAR, -1);
                     isDateChanged = true;
                 }
+                //这里是对于12小时制时，凌晨11点和12点交替时对日期的更改
                 if (oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY ||
                         oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) {
                     mIsAm = !mIsAm;
                     updateAmPmControl();
-                }
+                }//这里是对于12小时制时，中午11点和12点交替时对AM和PM的更改
             } else {
                 if (oldVal == HOURS_IN_ALL_DAY - 1 && newVal == 0) {
                     cal.setTimeInMillis(mDate.getTimeInMillis());
                     cal.add(Calendar.DAY_OF_YEAR, 1);
                     isDateChanged = true;
+                    //这里是对于24小时制时，晚上11点和12点交替时对日期的更改
                 } else if (oldVal == 0 && newVal == HOURS_IN_ALL_DAY - 1) {
                     cal.setTimeInMillis(mDate.getTimeInMillis());
                     cal.add(Calendar.DAY_OF_YEAR, -1);
                     isDateChanged = true;
                 }
-            }
+            }//这里是对于12小时制时，凌晨11点和12点交替时对日期的更改
             int newHour = mHourSpinner.getValue() % HOURS_IN_HALF_DAY + (mIsAm ? 0 : HOURS_IN_HALF_DAY);
+            //通过数字选择器对newHour的赋值
             mDate.set(Calendar.HOUR_OF_DAY, newHour);
+            //通过set函数将新的Hour值传给mDate
             onDateTimeChanged();
             if (isDateChanged) {
                 setCurrentYear(cal.get(Calendar.YEAR));
@@ -117,15 +131,19 @@ public class DateTimePicker extends FrameLayout {
 
     private NumberPicker.OnValueChangeListener mOnMinuteChangedListener = new NumberPicker.OnValueChangeListener() {
         @Override
+        //这里是对 分钟（Minute）改变的监听
         public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
             int minValue = mMinuteSpinner.getMinValue();
             int maxValue = mMinuteSpinner.getMaxValue();
             int offset = 0;
+            //设置offset，作为小时改变的一个记录数据
             if (oldVal == maxValue && newVal == minValue) {
                 offset += 1;
             } else if (oldVal == minValue && newVal == maxValue) {
                 offset -= 1;
             }
+            //如果原值为59，新值为0，则offset加1
+            //如果原值为0，新值为59，则offset减1
             if (offset != 0) {
                 mDate.add(Calendar.HOUR_OF_DAY, offset);
                 mHourSpinner.setValue(getCurrentHour());
@@ -145,6 +163,7 @@ public class DateTimePicker extends FrameLayout {
     };
 
     private NumberPicker.OnValueChangeListener mOnAmPmChangedListener = new NumberPicker.OnValueChangeListener() {
+        //对AM和PM的监听
         @Override
         public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
             mIsAm = !mIsAm;
@@ -165,19 +184,22 @@ public class DateTimePicker extends FrameLayout {
 
     public DateTimePicker(Context context) {
         this(context, System.currentTimeMillis());
-    }
+    }//通过对数据库的访问，获取当前的系统时间
 
     public DateTimePicker(Context context, long date) {
         this(context, date, DateFormat.is24HourFormat(context));
-    }
+    }//上面函数的得到的是一个天文数字（1970至今的秒数），需要DateFormat将其变得有意义
 
     public DateTimePicker(Context context, long date, boolean is24HourView) {
         super(context);
+        //获取系统时间
         mDate = Calendar.getInstance();
         mInitialising = true;
         mIsAm = getCurrentHourOfDay() >= HOURS_IN_HALF_DAY;
         inflate(context, R.layout.datetime_picker, this);
-
+        //如果当前Activity里用到别的layout，比如对话框layout
+        //还要设置这个layout上的其他组件的内容，就必须用inflate()方法先将对话框的layout找出来
+        //然后再用findViewById()找到它上面的其它组件
         mDateSpinner = (NumberPicker) findViewById(R.id.date);
         mDateSpinner.setMinValue(DATE_SPINNER_MIN_VAL);
         mDateSpinner.setMaxValue(DATE_SPINNER_MAX_VAL);
@@ -226,7 +248,8 @@ public class DateTimePicker extends FrameLayout {
         mAmPmSpinner.setEnabled(enabled);
         mIsEnabled = enabled;
     }
-
+    //下面的代码通过原程序的注释已经比较清晰，另外可以通过函数名来判断
+    //下面的各函数主要是对上面代码引用到的各函数功能的实现
     @Override
     public boolean isEnabled() {
         return mIsEnabled;
@@ -239,7 +262,7 @@ public class DateTimePicker extends FrameLayout {
      */
     public long getCurrentDateInTimeMillis() {
         return mDate.getTimeInMillis();
-    }
+    }//实现函数——得到当前的秒数
 
     /**
      * Set the current date
@@ -251,7 +274,7 @@ public class DateTimePicker extends FrameLayout {
         cal.setTimeInMillis(date);
         setCurrentDate(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH),
                 cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE));
-    }
+    }//实现函数功能——设置当前的时间，参数是date
 
     /**
      * Set the current date
@@ -269,13 +292,14 @@ public class DateTimePicker extends FrameLayout {
         setCurrentDay(dayOfMonth);
         setCurrentHour(hourOfDay);
         setCurrentMinute(minute);
-    }
+    }//实现函数功能——设置当前的时间，参数是各详细的变量
 
     /**
      * Get current year
      *
      * @return The current year
      */
+    //下面是得到year、month、day等值
     public int getCurrentYear() {
         return mDate.get(Calendar.YEAR);
     }
@@ -446,7 +470,7 @@ public class DateTimePicker extends FrameLayout {
         mDateSpinner.setDisplayedValues(mDateDisplayValues);
         mDateSpinner.setValue(DAYS_IN_ALL_WEEK / 2);
         mDateSpinner.invalidate();
-    }
+    }// 对于星期几的算法
 
     private void updateAmPmControl() {
         if (mIs24HourView) {
@@ -455,7 +479,7 @@ public class DateTimePicker extends FrameLayout {
             int index = mIsAm ? Calendar.AM : Calendar.PM;
             mAmPmSpinner.setValue(index);
             mAmPmSpinner.setVisibility(View.VISIBLE);
-        }
+        }// 对于上下午操作的算法
     }
 
     private void updateHourControl() {
@@ -465,7 +489,7 @@ public class DateTimePicker extends FrameLayout {
         } else {
             mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW);
             mHourSpinner.setMaxValue(HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW);
-        }
+        }// 对与小时的算法
     }
 
     /**

doc/标注/210340086_赵军杰/DateTimePickerDialog.java

@@ -32,18 +32,25 @@ import android.text.format.DateUtils;
 public class DateTimePickerDialog extends AlertDialog implements OnClickListener {
 
     private Calendar mDate = Calendar.getInstance();
+    //创建一个Calendar类型的变量 mDate，方便时间的操作
     private boolean mIs24HourView;
     private OnDateTimeSetListener mOnDateTimeSetListener;
+    //声明一个时间日期滚动选择控件 mOnDateTimeSetListener
     private DateTimePicker mDateTimePicker;
+    //DateTimePicker控件，控件一般用于让用户可以从日期列表中选择单个值。
+    //运行时，单击控件边上的下拉箭头，会显示为两个部分：一个下拉列表，一个用于选择日期的
 
     public interface OnDateTimeSetListener {
         void OnDateTimeSet(AlertDialog dialog, long date);
     }
 
     public DateTimePickerDialog(Context context, long date) {
+        //对该界面对话框的实例化
         super(context);
+        //对数据库的操作
         mDateTimePicker = new DateTimePicker(context);
         setView(mDateTimePicker);
+        //添加一个子视图
         mDateTimePicker.setOnDateTimeChangedListener(new OnDateTimeChangedListener() {
             public void onDateTimeChanged(DateTimePicker view, int year, int month,
                     int dayOfMonth, int hourOfDay, int minute) {
@@ -52,15 +59,20 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener
                 mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth);
                 mDate.set(Calendar.HOUR_OF_DAY, hourOfDay);
                 mDate.set(Calendar.MINUTE, minute);
+                //将视图中的各选项设置为系统当前时间
                 updateTitle(mDate.getTimeInMillis());
             }
         });
         mDate.setTimeInMillis(date);
+        //得到系统时间
         mDate.set(Calendar.SECOND, 0);
+        //将秒数设置为0
         mDateTimePicker.setCurrentDate(mDate.getTimeInMillis());
         setButton(context.getString(R.string.datetime_dialog_ok), this);
         setButton2(context.getString(R.string.datetime_dialog_cancel), (OnClickListener)null);
+        //设置按钮
         set24HourView(DateFormat.is24HourFormat(this.getContext()));
+        //时间标准化打印
         updateTitle(mDate.getTimeInMillis());
     }
 
@@ -70,7 +82,7 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener
 
     public void setOnDateTimeSetListener(OnDateTimeSetListener callBack) {
         mOnDateTimeSetListener = callBack;
-    }
+    }//将时间日期滚动选择控件实例化
 
     private void updateTitle(long date) {
         int flag =
@@ -79,12 +91,14 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener
             DateUtils.FORMAT_SHOW_TIME;
         flag |= mIs24HourView ? DateUtils.FORMAT_24HOUR : DateUtils.FORMAT_24HOUR;
         setTitle(DateUtils.formatDateTime(this.getContext(), date, flag));
-    }
+    }//android开发中常见日期管理工具类（API）——DateUtils：按照上下午显示时间
 
     public void onClick(DialogInterface arg0, int arg1) {
         if (mOnDateTimeSetListener != null) {
             mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis());
         }
-    }
+    }//第一个参数arg0是接收到点击事件的对话框
+
+    //第二个参数arg1是该对话框上的按钮
 
 }

doc/标注/210340086_赵军杰/DropdownMenu.java

@@ -30,14 +30,18 @@ import net.micode.notes.R;
 public class DropdownMenu {
     private Button mButton;
     private PopupMenu mPopupMenu;
+    //声明一个下拉菜单
     private Menu mMenu;
 
     public DropdownMenu(Context context, Button button, int menuId) {
         mButton = button;
         mButton.setBackgroundResource(R.drawable.dropdown_icon);
+        //设置这个view的背景
         mPopupMenu = new PopupMenu(context, mButton);
         mMenu = mPopupMenu.getMenu();
         mPopupMenu.getMenuInflater().inflate(menuId, mMenu);
+        //MenuInflater是用来实例化Menu目录下的Menu布局文件
+        //根据ID来确认menu的内容选项
         mButton.setOnClickListener(new OnClickListener() {
             public void onClick(View v) {
                 mPopupMenu.show();
@@ -48,14 +52,14 @@ public class DropdownMenu {
     public void setOnDropdownMenuItemClickListener(OnMenuItemClickListener listener) {
         if (mPopupMenu != null) {
             mPopupMenu.setOnMenuItemClickListener(listener);
-        }
+        }//设置菜单的监听
     }
 
     public MenuItem findItem(int id) {
         return mMenu.findItem(id);
-    }
+    }//对于菜单选项的初始化，根据索引搜索菜单需要的选项
 
     public void setTitle(CharSequence title) {
         mButton.setText(title);
-    }
+    }//布局文件，设置标题
 }

doc/标注/210340086_赵军杰/GTaskStringUtils.java

@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
+//简介：定义了很多的静态字符串，目的就是为了提供jsonObject中相应字符串的"key"。把这些静态的定义单独写到了一个类里面。
 package net.micode.notes.tool;
-
+//这个类就是定义了一堆static string，实际就是为jsonObject提供Key，把这些定义全部写到一个类里，方便查看管理。
 public class GTaskStringUtils {
 
     public final static String GTASK_JSON_ACTION_ID = "action_id";

doc/标注/210340086_赵军杰/NoteWidgetProvider.java

@@ -0,0 +1,132 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.widget;
+import android.app.PendingIntent;
+import android.appwidget.AppWidgetManager;
+import android.appwidget.AppWidgetProvider;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.Intent;
+import android.database.Cursor;
+import android.util.Log;
+import android.widget.RemoteViews;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.tool.ResourceParser;
+import net.micode.notes.ui.NoteEditActivity;
+import net.micode.notes.ui.NotesListActivity;
+
+public abstract class NoteWidgetProvider extends AppWidgetProvider {
+    public static final String [] PROJECTION = new String [] {
+        NoteColumns.ID,
+        NoteColumns.BG_COLOR_ID,
+        NoteColumns.SNIPPET
+    };
+
+    public static final int COLUMN_ID           = 0;
+    public static final int COLUMN_BG_COLOR_ID  = 1;
+    public static final int COLUMN_SNIPPET      = 2;
+
+    private static final String TAG = "NoteWidgetProvider";
+
+    @Override
+    public void onDeleted(Context context, int[] appWidgetIds) {
+        ContentValues values = new ContentValues();
+        values.put(NoteColumns.WIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
+        for (int i = 0; i < appWidgetIds.length; i++) {
+            context.getContentResolver().update(Notes.CONTENT_NOTE_URI,
+                    values,
+                    NoteColumns.WIDGET_ID + "=?",
+                    new String[] { String.valueOf(appWidgetIds[i])});
+        }
+    }
+
+    private Cursor getNoteWidgetInfo(Context context, int widgetId) {
+        return context.getContentResolver().query(Notes.CONTENT_NOTE_URI,
+                PROJECTION,
+                NoteColumns.WIDGET_ID + "=? AND " + NoteColumns.PARENT_ID + "<>?",
+                new String[] { String.valueOf(widgetId), String.valueOf(Notes.ID_TRASH_FOLER) },
+                null);
+    }
+
+    protected void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
+        update(context, appWidgetManager, appWidgetIds, false);
+    }
+
+    private void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds,
+            boolean privacyMode) {
+        for (int i = 0; i < appWidgetIds.length; i++) {
+            if (appWidgetIds[i] != AppWidgetManager.INVALID_APPWIDGET_ID) {
+                int bgId = ResourceParser.getDefaultBgId(context);
+                String snippet = "";
+                Intent intent = new Intent(context, NoteEditActivity.class);
+                intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
+                intent.putExtra(Notes.INTENT_EXTRA_WIDGET_ID, appWidgetIds[i]);
+                intent.putExtra(Notes.INTENT_EXTRA_WIDGET_TYPE, getWidgetType());
+
+                Cursor c = getNoteWidgetInfo(context, appWidgetIds[i]);
+                if (c != null && c.moveToFirst()) {
+                    if (c.getCount() > 1) {
+                        Log.e(TAG, "Multiple message with same widget id:" + appWidgetIds[i]);
+                        c.close();
+                        return;
+                    }
+                    snippet = c.getString(COLUMN_SNIPPET);
+                    bgId = c.getInt(COLUMN_BG_COLOR_ID);
+                    intent.putExtra(Intent.EXTRA_UID, c.getLong(COLUMN_ID));
+                    intent.setAction(Intent.ACTION_VIEW);
+                } else {
+                    snippet = context.getResources().getString(R.string.widget_havenot_content);
+                    intent.setAction(Intent.ACTION_INSERT_OR_EDIT);
+                }
+
+                if (c != null) {
+                    c.close();
+                }
+
+                RemoteViews rv = new RemoteViews(context.getPackageName(), getLayoutId());
+                rv.setImageViewResource(R.id.widget_bg_image, getBgResourceId(bgId));
+                intent.putExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, bgId);
+                /**
+                 * Generate the pending intent to start host for the widget
+                 */
+                PendingIntent pendingIntent = null;
+                if (privacyMode) {
+                    rv.setTextViewText(R.id.widget_text,
+                            context.getString(R.string.widget_under_visit_mode));
+                    pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], new Intent(
+                            context, NotesListActivity.class), PendingIntent.FLAG_UPDATE_CURRENT);
+                } else {
+                    rv.setTextViewText(R.id.widget_text, snippet);
+                    pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], intent,
+                            PendingIntent.FLAG_UPDATE_CURRENT);
+                }
+
+                rv.setOnClickPendingIntent(R.id.widget_text, pendingIntent);
+                appWidgetManager.updateAppWidget(appWidgetIds[i], rv);
+            }
+        }
+    }
+
+    protected abstract int getBgResourceId(int bgId);
+
+    protected abstract int getLayoutId();
+
+    protected abstract int getWidgetType();
+}

doc/标注/210340086_赵军杰/NoteWidgetProvider_2x.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.widget;
+
+import android.appwidget.AppWidgetManager;
+import android.content.Context;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.tool.ResourceParser;
+
+
+public class NoteWidgetProvider_2x extends NoteWidgetProvider {
+    @Override
+    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
+        super.update(context, appWidgetManager, appWidgetIds);
+    }
+
+    @Override
+    protected int getLayoutId() {
+        return R.layout.widget_2x;
+    }
+
+    @Override
+    protected int getBgResourceId(int bgId) {
+        return ResourceParser.WidgetBgResources.getWidget2xBgResource(bgId);
+    }
+
+    @Override
+    protected int getWidgetType() {
+        return Notes.TYPE_WIDGET_2X;
+    }
+}

doc/标注/210340086_赵军杰/NoteWidgetProvider_4x.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.widget;
+
+import android.appwidget.AppWidgetManager;
+import android.content.Context;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.tool.ResourceParser;
+
+
+public class NoteWidgetProvider_4x extends NoteWidgetProvider {
+    @Override
+    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
+        super.update(context, appWidgetManager, appWidgetIds);
+    }
+
+    protected int getLayoutId() {
+        return R.layout.widget_4x;
+    }
+
+    @Override
+    protected int getBgResourceId(int bgId) {
+        return ResourceParser.WidgetBgResources.getWidget4xBgResource(bgId);
+    }
+
+    @Override
+    protected int getWidgetType() {
+        return Notes.TYPE_WIDGET_4X;
+    }
+}

doc/标注/210340086_赵军杰/NotesListItem.java

@@ -29,38 +29,43 @@ import net.micode.notes.data.Notes;
 import net.micode.notes.tool.DataUtils;
 import net.micode.notes.tool.ResourceParser.NoteItemBgResources;
 
-
+//创建便签列表项目选项
 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);
@@ -69,8 +74,9 @@ public class NotesListItem extends LinearLayout {
             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);
@@ -79,6 +85,7 @@ public class NotesListItem extends LinearLayout {
             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,
@@ -87,31 +94,35 @@ public class NotesListItem extends LinearLayout {
             } 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());
         }
     }

doc/标注/210340086_赵军杰/NotesPreferenceActivity.java

@@ -47,66 +47,88 @@ import net.micode.notes.data.Notes;
 import net.micode.notes.data.Notes.NoteColumns;
 import net.micode.notes.gtask.remote.GTaskSyncService;
 
-
+/*
+ *该类功能：NotesPreferenceActivity，在小米便签中主要实现的是对背景颜色和字体大小的数据储存。
+ *       继承了PreferenceActivity主要功能为对系统信息和配置进行自动保存的Activity
+*/
 public class NotesPreferenceActivity extends PreferenceActivity {
     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";
-
+    //同步密码
     private static final String AUTHORITIES_FILTER_KEY = "authorities";
-
+    //本地密码
     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
+     /*
+     *函数功能：创建一个activity，在函数里要完成所有的正常静态设置
+     *参数：Bundle icicle：存放了 activity 当前的状态
+     */
     protected void onCreate(Bundle icicle) {
+        //先执行父类的创建函数
         super.onCreate(icicle);
 
         /* 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);
+        //初始化同步组件
 
         mOriAccounts = null;
         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
+    /*
+     * 函数功能：activity交互功能的实现，用于接受用户的输入
+     */
     protected void onResume() {
+        //先执行父类 的交互实现
         super.onResume();
 
         // need to set sync account automatically if user has added a new
         // account
         if (mHasAddedAccount) {
+            //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;
                     }
                 }
@@ -114,35 +136,51 @@ public class NotesPreferenceActivity extends PreferenceActivity {
         }
 
         refreshUI();
+        //刷新标签界面
     }
 
     @Override
+    /*
+     * 函数功能：销毁一个activity
+     */
     protected void onDestroy() {
         if (mReceiver != null) {
             unregisterReceiver(mReceiver);
+            //注销接收器
         }
         super.onDestroy();
+        //执行父类的销毁动作
     }
-
+/*
+     * 函数功能：重新设置账户信息
+     * 函数实现：如下注释
+ */
     private void loadAccountPreference() {
         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));
+        //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();
@@ -150,22 +188,28 @@ public class NotesPreferenceActivity extends PreferenceActivity {
                 return true;
             }
         });
+        //根据新建首选项编辑新的账户分组
 
         mAccountCategory.addPreference(accountPref);
     }
-
+/*
+     *函数功能：设置按键的状态和最后同步的时间
+ */
     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() {
@@ -173,33 +217,47 @@ public class NotesPreferenceActivity extends PreferenceActivity {
                     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)));
+        //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);
             }
         }
     }
-
+/*
+      *函数功能：刷新标签界面
+      *函数实现：调用上文设置账号和设置按键两个函数来实现
+ */
     private void refreshUI() {
         loadAccountPreference();
         loadSyncButton();
     }
-
+/*
+     * 函数功能：显示账户选择的对话框并进行账户的设置
+ */
     private void showSelectAccountAlertDialog() {
         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);
@@ -207,16 +265,20 @@ public class NotesPreferenceActivity extends PreferenceActivity {
         TextView subtitleTextView = (TextView) titleView.findViewById(R.id.account_dialog_subtitle);
         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);
 
+        //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);
 
+        //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;
@@ -224,84 +286,116 @@ public class NotesPreferenceActivity extends PreferenceActivity {
             for (Account account : accounts) {
                 if (TextUtils.equals(account.name, defAccount)) {
                     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();
+                            //取消对话框
                             refreshUI();
                         }
+                        //设置点击后执行的事件，包括检录新同步账户和刷新标签界面
                     });
+            //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);
 
+        //给新加账户对话框设置自定义样式
         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
     }
-
+/*
+     * 函数功能：显示账户选择对话框和相关账户操作
+ */
     private void showChangeAccountConfirmAlertDialog() {
         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));
+        //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)
         };
+        //定义一些标记字符串
         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();
+        //显示对话框
     }
-
+ /*
+     *函数功能：获取谷歌账户
+     *函数实现：通过账户管理器直接获取
+  */
     private Account[] getGoogleAccounts() {
         AccountManager accountManager = AccountManager.get(this);
         return accountManager.getAccountsByType("com.google");
     }
-
+/*
+     * 函数功能：设置同步账户
+ */
     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();
+            //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
             // clean up last sync time
             setLastSyncTime(this, 0);
 
+            //将最后同步时间清零
             // clean up local gtask related info
             new Thread(new Runnable() {
                 public void run() {
@@ -311,23 +405,31 @@ public class NotesPreferenceActivity extends PreferenceActivity {
                     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
         }
     }
-
+/*
+     * 函数功能：删除同步账户
+ */
     private void removeSyncAccount() {
         SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE);
         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);
+            //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);
+            //删除当前首选项中有账户时间
         }
         editor.commit();
+        //提交更新后的数据
 
         // clean up local gtask related info
         new Thread(new Runnable() {
@@ -338,49 +440,71 @@ public class NotesPreferenceActivity extends PreferenceActivity {
                 getContentResolver().update(Notes.CONTENT_NOTE_URI, values, null, null);
             }
         }).start();
+        //重置当地同步任务的信息
     }
-
+ /*
+     * 函数功能：获取同步账户名称
+     * 函数实现：通过共享的首选项里的信息直接获取
+  */
     public static String getSyncAccountName(Context context) {
         SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
                 Context.MODE_PRIVATE);
         return settings.getString(PREFERENCE_SYNC_ACCOUNT_NAME, "");
     }
-
+/*
+     * 函数功能：设置最终同步的时间
+ */
     public static void setLastSyncTime(Context context, long time) {
         SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
                 Context.MODE_PRIVATE);
         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();
+        //编辑最终同步时间并提交更新
     }
-
+/*
+     * 函数功能：获取最终同步时间
+     * 函数实现：通过共享的首选项里的信息直接获取
+ */
     public static long getLastSyncTime(Context context) {
         SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
                 Context.MODE_PRIVATE);
         return settings.getLong(PREFERENCE_LAST_SYNC_TIME, 0);
     }
-
+/*
+     * 函数功能：接受同步信息
+     * 函数实现：继承BroadcastReceiver
+ */
     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));
+                //通过获取的数据在设置系统的状态
             }
 
         }
     }
-
+ /*
+     * 函数功能：处理菜单的选项
+     * 函数实现：如下注释
+     * 参数:MenuItem菜单选项
+  */
     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;
         }

doc/标注/210340086_赵军杰/ResourceParser.java

@@ -15,6 +15,21 @@
  */
 
 package net.micode.notes.tool;
+/*简介：
+ * 字面意义是资源分析器，实际上就是获取资源并且在程序中使用，比如颜色图片等
+ * 实现方法：主要利用R.java这个类，其中包括
+ * R.id      组件资源引用
+ * R.drawable  图片资源 （被使用）
+ * R.layout  布局资源
+ * R.menu   菜单资源
+ * R.String  文字资源
+ * R.style    主题资源 （被使用）
+ * 在按顺序设置好相应的id后，就可以编写简单的getXXX函数获取需要的资源
+ *
+ * 特殊的变量 ：
+ * @BG_DEFAULT_COLOR 默认背景颜色（黄）
+ * BG_DEFAULT_FONT_SIZE 默认文本大小（中）
+ */
 
 import android.content.Context;
 import android.preference.PreferenceManager;
@@ -162,6 +177,7 @@ public class ResourceParser {
             R.style.TextAppearanceSuper
         };
 
+        //这里有一个容错的函数，防止输入的id大于资源总量，若如此，则自动返回默认的设置结果
         public static int getTexAppearanceResource(int id) {
             /**
              * HACKME: Fix bug of store the resource id in shared preference.

doc/标注/210340090_邹国涛/Contact.java

@@ -25,7 +25,7 @@ import android.util.Log;
 
 import java.util.HashMap;
 
-public class Contact {
+public class Contact {        //建立联系人类
     private static HashMap<String, String> sContactCache;
     private static final String TAG = "Contact";
 
@@ -34,38 +34,40 @@ public class Contact {
     + " AND " + Data.RAW_CONTACT_ID + " IN "
             + "(SELECT raw_contact_id "
             + " FROM phone_lookup"
-            + " WHERE min_match = '+')";
+            + " WHERE min_match = '+')";      //定义CALLER_ID_SELECTION字符串
 
     public static String getContact(Context context, String phoneNumber) {
         if(sContactCache == null) {
             sContactCache = new HashMap<String, String>();
-        }
+        }         //获取联系人函数
 
+        //查找HashMap中是否已经有PhoneNumber的信息，有则返回PhoneNumber的信息
         if(sContactCache.containsKey(phoneNumber)) {
             return sContactCache.get(phoneNumber);
         }
 
         String selection = CALLER_ID_SELECTION.replace("+",
                 PhoneNumberUtils.toCallerIDMinMatch(phoneNumber));
+                  //用游标查找数据库中的PhoneNumber信息
         Cursor cursor = context.getContentResolver().query(
                 Data.CONTENT_URI,
                 new String [] { Phone.DISPLAY_NAME },
                 selection,
                 new String[] { phoneNumber },
                 null);
-
-        if (cursor != null && cursor.moveToFirst()) {
-            try {
+              //if判断上述cursor的查询结果
+        if (cursor != null && cursor.moveToFirst()) {   //moveToFirst——返回第一条
+            try {     //找到了相关的信息
                 String name = cursor.getString(0);
                 sContactCache.put(phoneNumber, name);
                 return name;
-            } catch (IndexOutOfBoundsException e) {
+            } catch (IndexOutOfBoundsException e) {     //发生异常，用catch捕捉
                 Log.e(TAG, " Cursor get string error " + e.toString());
                 return null;
             } finally {
                 cursor.close();
             }
-        } else {
+        } else {      //未找到相关信息
             Log.d(TAG, "No contact matched with number:" + phoneNumber);
             return null;
         }

doc/标注/210340090_邹国涛/MetaData.java

@@ -27,29 +27,38 @@ import org.json.JSONObject;
 
 public class MetaData extends Task {
     private final static String TAG = MetaData.class.getSimpleName();
-
+    //功能：得到类的简写名称SimpleName存入字符串TAG中
+    //实现：调用getSimpleName()函数来得到类简写名称结果
     private String mRelatedGid = null;
-
+    //功能：设置数据，即生成一个初始的，也叫元数据库
+    //实现：调用JSONObject库函数put()，Task类中的setNotes ()和setName ()函数
     public void setMeta(String gid, JSONObject metaInfo) {
+        //对函数模块进行注释
         try {
             metaInfo.put(GTaskStringUtils.META_HEAD_GTASK_ID, gid);
+            //将这一对键值放入jsonobject的对象metaInfo中
         } catch (JSONException e) {
             Log.e(TAG, "failed to put related gid");
+            //输出错误信息
         }
         setNotes(metaInfo.toString());
         setName(GTaskStringUtils.META_NOTE_NAME);
     }
 
+    //功能：获取相关联的Gid
     public String getRelatedGid() {
         return mRelatedGid;
     }
 
     @Override
+    //功能：判断当前数据是否为空，若为空则返回“真”，即就是值得保存的
     public boolean isWorthSaving() {
         return getNotes() != null;
     }
 
     @Override
+     //功能：使用远程json数据对象设置元数据内容
+     //实现：调用父类Task中的setContentByRemoteJSON ()函数
     public void setContentByRemoteJSON(JSONObject js) {
         super.setContentByRemoteJSON(js);
         if (getNotes() != null) {
@@ -58,16 +67,18 @@ public class MetaData extends Task {
                 mRelatedGid = metaInfo.getString(GTaskStringUtils.META_HEAD_GTASK_ID);
             } catch (JSONException e) {
                 Log.w(TAG, "failed to get related gid");
+                //输出警告信息
                 mRelatedGid = null;
             }
         }
     }
 
     @Override
+    //功能：使用本地json数据对象设置元数据内容，一般不用到，若用到的话则throw Error，即则抛出异常
     public void setContentByLocalJSON(JSONObject js) {
         // this function should not be called
         throw new IllegalAccessError("MetaData:setContentByLocalJSON should not be called");
-    }
+    }         //传递非法参数异常
 
     @Override
     public JSONObject getLocalJSONFromContent() {
@@ -75,8 +86,9 @@ public class MetaData extends Task {
     }
 
     @Override
+    //功能：获取同步动作状态，也是一般用不到，如果用到则throw抛出异常
     public int getSyncAction(Cursor c) {
         throw new IllegalAccessError("MetaData:getSyncAction should not be called");
-    }
+    }       //传递非法参数异常
 
 }

doc/标注/210340090_邹国涛/Node.java

@@ -21,31 +21,32 @@ import android.database.Cursor;
 import org.json.JSONObject;
 
 public abstract class Node {
-    public static final int SYNC_ACTION_NONE = 0;
+    //定义了各种关于表征同步状态的常量
+    public static final int SYNC_ACTION_NONE = 0;  // 本地和云端都无可更新内容（即本地和云端内容一致）
 
-    public static final int SYNC_ACTION_ADD_REMOTE = 1;
+    public static final int SYNC_ACTION_ADD_REMOTE = 1;  // 需要在远程云端增加内容
 
-    public static final int SYNC_ACTION_ADD_LOCAL = 2;
+    public static final int SYNC_ACTION_ADD_LOCAL = 2;  // 需要在本地增加内容
 
-    public static final int SYNC_ACTION_DEL_REMOTE = 3;
+    public static final int SYNC_ACTION_DEL_REMOTE = 3; // 需要在远程云端删除内容
 
-    public static final int SYNC_ACTION_DEL_LOCAL = 4;
+    public static final int SYNC_ACTION_DEL_LOCAL = 4; // 需要在本地删除内容
 
-    public static final int SYNC_ACTION_UPDATE_REMOTE = 5;
+    public static final int SYNC_ACTION_UPDATE_REMOTE = 5; // 需要将本地内容更新到远程云端
 
-    public static final int SYNC_ACTION_UPDATE_LOCAL = 6;
+    public static final int SYNC_ACTION_UPDATE_LOCAL = 6; // 需要将远程云端内容更新到本地
 
-    public static final int SYNC_ACTION_UPDATE_CONFLICT = 7;
-
-    public static final int SYNC_ACTION_ERROR = 8;
+    public static final int SYNC_ACTION_UPDATE_CONFLICT = 7; // 同步出现冲突
 
+    public static final int SYNC_ACTION_ERROR = 8; // 同步出现错误
+    //上述序号标注的功能在data下的TaskList中有详细的实现过程，这里只作粗略的定义，详见TaskList
     private String mGid;
 
     private String mName;
 
-    private long mLastModified;
+    private long mLastModified;  //记录最后一次修改的时间
 
-    private boolean mDeleted;
+    private boolean mDeleted;  //表达是否被删除了
 
     public Node() {
         mGid = null;

doc/标注/210340090_邹国涛/Notes.java

@@ -18,8 +18,10 @@ package net.micode.notes.data;
 
 import android.net.Uri;
 public class Notes {
+    //final是一个保留关键字，用于声明成员变量，方法，类，以及本地的变量
     public static final String AUTHORITY = "micode_notes";
     public static final String TAG = "Notes";
+    //以下三个常量用于在对notecolumn.TYPE的值进行设置的时候，并给它们先给上初始值
     public static final int TYPE_NOTE     = 0;
     public static final int TYPE_FOLDER   = 1;
     public static final int TYPE_SYSTEM   = 2;
@@ -55,61 +57,61 @@ public class Notes {
      * Uri to query all notes and folders
      */
     public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" + AUTHORITY + "/note");
-
+                      //定义指针，用于查询便签和其包含的文件夹
     /**
      * Uri to query data
      */
     public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data");
-
+                    //定义指针用于查询数据
     public interface NoteColumns {
+                 //定义NoteColumns内的常量，用于后续数据库表头的创建
         /**
          * The unique ID for a row
          * <P> Type: INTEGER (long) </P>
          */
-        public static final String ID = "_id";
-
+        public static final String ID = "_id";      //姓名
         /**
          * The parent's id for note or folder
          * <P> Type: INTEGER (long) </P>
          */
-        public static final String PARENT_ID = "parent_id";
+        public static final String PARENT_ID = "parent_id";     //父母姓名
 
         /**
          * Created data for note or folder
          * <P> Type: INTEGER (long) </P>
          */
-        public static final String CREATED_DATE = "created_date";
+        public static final String CREATED_DATE = "created_date";        //创建的日期
 
         /**
          * Latest modified date
          * <P> Type: INTEGER (long) </P>
          */
-        public static final String MODIFIED_DATE = "modified_date";
+        public static final String MODIFIED_DATE = "modified_date";       //改变后的日期
 
 
         /**
          * Alert date
          * <P> Type: INTEGER (long) </P>
          */
-        public static final String ALERTED_DATE = "alert_date";
+        public static final String ALERTED_DATE = "alert_date";      //发出警报的日期
 
         /**
          * Folder's name or text content of note
          * <P> Type: TEXT </P>
          */
-        public static final String SNIPPET = "snippet";
+        public static final String SNIPPET = "snippet";         //网络、片段
 
         /**
          * Note's widget id
          * <P> Type: INTEGER (long) </P>
          */
-        public static final String WIDGET_ID = "widget_id";
+        public static final String WIDGET_ID = "widget_id";       //应用小插件名
 
         /**
          * Note's widget type
          * <P> Type: INTEGER (long) </P>
          */
-        public static final String WIDGET_TYPE = "widget_type";
+        public static final String WIDGET_TYPE = "widget_type";      //应用小插件的类型
 
         /**
          * Note's background color's id
@@ -122,13 +124,13 @@ public class Notes {
          * note, it has at least one attachment
          * <P> Type: INTEGER </P>
          */
-        public static final String HAS_ATTACHMENT = "has_attachment";
+        public static final String HAS_ATTACHMENT = "has_attachment";       //联系
 
         /**
          * Folder's count of notes
          * <P> Type: INTEGER (long) </P>
          */
-        public static final String NOTES_COUNT = "notes_count";
+        public static final String NOTES_COUNT = "notes_count";           //笔记计数
 
         /**
          * The file type: folder or note
@@ -140,7 +142,7 @@ public class Notes {
          * The last sync id
          * <P> Type: INTEGER (long) </P>
          */
-        public static final String SYNC_ID = "sync_id";
+        public static final String SYNC_ID = "sync_id";    //同步的意思
 
         /**
          * Sign to indicate local modified or not
@@ -165,9 +167,9 @@ public class Notes {
          * <P> Type : INTEGER (long) </P>
          */
         public static final String VERSION = "version";
-    }
+    }               //上述常量用于更好地定义便签的一些属性
 
-    public interface DataColumns {
+    public interface DataColumns {       //定义DataColumns内的常量，也是用于后续数据库表头的创建
         /**
          * The unique ID for a row
          * <P> Type: INTEGER (long) </P>
@@ -239,7 +241,7 @@ public class Notes {
          * <P> Type: TEXT </P>
          */
         public static final String DATA5 = "data5";
-    }
+    }                           //上述变量定义用来存储便签内容和数据
 
     public static final class TextNote implements DataColumns {
         /**
@@ -255,7 +257,7 @@ public class Notes {
         public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/text_note";
 
         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/text_note");
-    }
+    }                    //文本内容的数据结构
 
     public static final class CallNote implements DataColumns {
         /**
@@ -275,5 +277,5 @@ public class Notes {
         public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/call_note";
 
         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/call_note");
-    }
+    }          //同上，这里定义的是电话内容的数据结构
 }

doc/标注/210340090_邹国涛/NotesDatabaseHelper.java

@@ -25,14 +25,30 @@ import android.util.Log;
 import net.micode.notes.data.Notes.DataColumns;
 import net.micode.notes.data.Notes.DataConstants;
 import net.micode.notes.data.Notes.NoteColumns;
+/*
 
+import android.content.ContentValues;
+//用于保存一些数据（string double float int ...）信息，这些信息可以被数据库操作时使用。
+import android.content.Context;
+//加载和访问资源（具体不明）
+import android.database.sqlite.SQLiteDatabase;
+//主要提供了数据库中对应于添加、删除、更新、查询的操作方法：insert、delete、update和query。配合第一个import
+import android.database.sqlite.SQLiteOpenHelper;
+//用于管理数据的创建以及后续版本的更新帮助
+import android.util.Log;
+
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.DataConstants;
+import net.micode.notes.data.Notes.NoteColumns;
+//用SQLOpenhelper对一些note和文件进行数据库的操作，比如删除文件后，将文件里的note也相应地删除
+*/
 
 public class NotesDatabaseHelper extends SQLiteOpenHelper {
     private static final String DB_NAME = "note.db";
 
     private static final int DB_VERSION = 4;
 
-    public interface TABLE {
+    public interface TABLE { //interface(接口)，分成了note和data，被后面的程序使用
         public static final String NOTE = "note";
 
         public static final String DATA = "data";
@@ -62,7 +78,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
             NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," +
             NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" +
         ")";
-
+         //都是一些数据库中需要存储的项目名称，加进去也就相当于数据库中创建的表格的表头了
     private static final String CREATE_DATA_TABLE_SQL =
         "CREATE TABLE " + TABLE.DATA + "(" +
             DataColumns.ID + " INTEGER PRIMARY KEY," +
@@ -77,11 +93,11 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
             DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," +
             DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" +
         ")";
-
+           //同样的，也是一些需要在数据库中存储的项目名称，但是存储的项目不同
     private static final String CREATE_DATA_NOTE_ID_INDEX_SQL =
         "CREATE INDEX IF NOT EXISTS note_id_index ON " +
         TABLE.DATA + "(" + DataColumns.NOTE_ID + ");";
-
+              //note_id,即便签的编号，这里是创建了一个存储便签编号的表格
     /**
      * Increase folder's note count when move note to the folder
      */
@@ -93,7 +109,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         "   SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
         "  WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
         " END";
-
+        //类似于数据库的Trigger，即触发器操作，这里表示文件夹中移入一个note之后表格中需要更改哪些数据
     /**
      * Decrease folder's note count when move note from folder
      */
@@ -106,7 +122,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         "  WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
         "  AND " + NoteColumns.NOTES_COUNT + ">0" + ";" +
         " END";
-
+     //同样的，跟上述一样，但这里表示文件夹中移除一个note之后数据库表格需要更新哪些数据
     /**
      * Increase folder's note count when insert new note to the folder
      */
@@ -118,7 +134,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         "   SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
         "  WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
         " END";
-
+        //看上面的注解有“insert”，即表示插入一个note之后数据库表格需要更改哪些数据
     /**
      * Decrease folder's note count when delete note from the folder
      */
@@ -131,7 +147,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         "  WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
         "  AND " + NoteColumns.NOTES_COUNT + ">0;" +
         " END";
-
+        //同样，上述注解有“delete”，即删除一个Note之后数据库表格需要更改哪些数据
     /**
      * Update note's content when insert data with type {@link DataConstants#NOTE}
      */
@@ -144,7 +160,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         "   SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
         "  WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
         " END";
-
+      //在文件夹中对一个Note导入新的数据之后数据库表格需要更改哪些数据
     /**
      * Update note's content when data with {@link DataConstants#NOTE} type has changed
      */
@@ -157,7 +173,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         "   SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
         "  WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
         " END";
-
+       //Note被修改之后（changed）数据库表格需要更改哪些数据
     /**
      * Update note's content when data with {@link DataConstants#NOTE} type has deleted
      */
@@ -170,7 +186,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         "   SET " + NoteColumns.SNIPPET + "=''" +
         "  WHERE " + NoteColumns.ID + "=old." + DataColumns.NOTE_ID + ";" +
         " END";
-
+        //Note删除之后（deleted）数据库表格需要更改哪些数据
     /**
      * Delete datas belong to note which has been deleted
      */
@@ -181,7 +197,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         "  DELETE FROM " + TABLE.DATA +
         "   WHERE " + DataColumns.NOTE_ID + "=old." + NoteColumns.ID + ";" +
         " END";
-
+         //同样，看上述英文注解望文生义--删除已删除的便签之中的数据后数据库表格中需要更改哪些数据
     /**
      * Delete notes belong to folder which has been deleted
      */
@@ -192,7 +208,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         "  DELETE FROM " + TABLE.NOTE +
         "   WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
         " END";
-
+       //删除已删除的文件夹中的便签数据后数据库表格中需要更改哪些数据
     /**
      * Move notes belong to folder which has been moved to trash folder
      */
@@ -205,18 +221,18 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         "   SET " + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +
         "  WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
         " END";
-
+       //还原已经扔进垃圾桶中的便签后数据库表格应做哪些修改
     public NotesDatabaseHelper(Context context) {
         super(context, DB_NAME, null, DB_VERSION);
     }
-
+          //构造函数，传入数据库的name and version，即其名称和版本
     public void createNoteTable(SQLiteDatabase db) {
         db.execSQL(CREATE_NOTE_TABLE_SQL);
         reCreateNoteTableTriggers(db);
         createSystemFolder(db);
         Log.d(TAG, "note table has been created");
     }
-
+        //创建一个表格，用于存储标签的属性
     private void reCreateNoteTableTriggers(SQLiteDatabase db) {
         db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_update");
         db.execSQL("DROP TRIGGER IF EXISTS decrease_folder_count_on_update");
@@ -234,7 +250,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         db.execSQL(FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER);
         db.execSQL(FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER);
     }
-
+    //execSQL是数据库操作的API（程序之间的接口），主要是更改行为的SQL语句。
+    //在此主要用来重新创建上述已经定义的表格，但需要先删除原有数据库的触发器再重新创建新的数据库
     private void createSystemFolder(SQLiteDatabase db) {
         ContentValues values = new ContentValues();
 
@@ -269,14 +286,14 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
         db.insert(TABLE.NOTE, null, values);
     }
-
+       //分别创建几个系统文件夹（记录文件夹，根文件夹，临时文件夹，垃圾文件夹）
     public void createDataTable(SQLiteDatabase db) {
         db.execSQL(CREATE_DATA_TABLE_SQL);
         reCreateDataTableTriggers(db);
         db.execSQL(CREATE_DATA_NOTE_ID_INDEX_SQL);
         Log.d(TAG, "data table has been created");
     }
-
+        //创建表格，用于存储标签的Data(数据)
     private void reCreateDataTableTriggers(SQLiteDatabase db) {
         db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_insert");
         db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_update");
@@ -286,20 +303,21 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER);
         db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER);
     }
-
+    //同上的解释，execSQL是数据库的API，主要是更改行为的SQL语句，但需要先删除原来数据库的触发器再创建新数据库
     static synchronized NotesDatabaseHelper getInstance(Context context) {
         if (mInstance == null) {
             mInstance = new NotesDatabaseHelper(context);
         }
         return mInstance;
     }
-
+     //为了解决同一时刻只能有一个线程执行。就像有时候一个类需要同时被多个类来使用，但又只能被实例化一次，所以就定义一次，让
+     //其他类使用同一个这个类的实例
     @Override
     public void onCreate(SQLiteDatabase db) {
         createNoteTable(db);
         createDataTable(db);
     }
-
+      //实现上述创建的两个表格（oncreate有表示执行实现的意思）
     @Override
     public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
         boolean reCreateTriggers = false;
@@ -332,14 +350,14 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
                     + "fails");
         }
     }
-
+          //数据库版本的更新，即数据库内容的一些更改
     private void upgradeToV2(SQLiteDatabase db) {
         db.execSQL("DROP TABLE IF EXISTS " + TABLE.NOTE);
         db.execSQL("DROP TABLE IF EXISTS " + TABLE.DATA);
         createNoteTable(db);
         createDataTable(db);
     }
-
+        //upgradeToV2--即更新到V2的版本
     private void upgradeToV3(SQLiteDatabase db) {
         // drop unused triggers
         db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_insert");
@@ -354,9 +372,9 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
         db.insert(TABLE.NOTE, null, values);
     }
-
+        //同样的，更新到V3版本
     private void upgradeToV4(SQLiteDatabase db) {
         db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.VERSION
                 + " INTEGER NOT NULL DEFAULT 0");
-    }
+       }     //更新到V4的版本
 }

doc/标注/210340090_邹国涛/NotesProvider.java

@@ -37,7 +37,7 @@ import net.micode.notes.data.NotesDatabaseHelper.TABLE;
 
 public class NotesProvider extends ContentProvider {
     private static final UriMatcher mMatcher;
-
+     //UriMatcher 用于匹配 Uri
     private NotesDatabaseHelper mHelper;
 
     private static final String TAG = "NotesProvider";
@@ -51,7 +51,9 @@ public class NotesProvider extends ContentProvider {
     private static final int URI_SEARCH_SUGGEST  = 6;
 
     static {
+        // 创建UriMatcher时，调用UriMatcher(UriMatcher.NO_MATCH)来表示不匹配任何路径的返回码
         mMatcher = new UriMatcher(UriMatcher.NO_MATCH);
+        //把需要匹配的Uri路径先全部注册上
         mMatcher.addURI(Notes.AUTHORITY, "note", URI_NOTE);
         mMatcher.addURI(Notes.AUTHORITY, "note/#", URI_NOTE_ITEM);
         mMatcher.addURI(Notes.AUTHORITY, "data", URI_DATA);
@@ -65,6 +67,7 @@ public class NotesProvider extends ContentProvider {
      * x'0A' represents the '\n' character in sqlite. For title and content in the search result,
      * we will trim '\n' and white space in order to show more information.
      */
+    //对 NOTES_SEARCH_PROJECTION 的声明
     private static final String NOTES_SEARCH_PROJECTION = NoteColumns.ID + ","
         + NoteColumns.ID + " AS " + SearchManager.SUGGEST_COLUMN_INTENT_EXTRA_DATA + ","
         + "TRIM(REPLACE(" + NoteColumns.SNIPPET + ", x'0A','')) AS " + SearchManager.SUGGEST_COLUMN_TEXT_1 + ","
@@ -73,6 +76,8 @@ public class NotesProvider extends ContentProvider {
         + "'" + Intent.ACTION_VIEW + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_ACTION + ","
         + "'" + Notes.TextNote.CONTENT_TYPE + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_DATA;
 
+
+    // 对 NOTES_SNIPPET_SEARCH_QUERY 的声明
     private static String NOTES_SNIPPET_SEARCH_QUERY = "SELECT " + NOTES_SEARCH_PROJECTION
         + " FROM " + TABLE.NOTE
         + " WHERE " + NoteColumns.SNIPPET + " LIKE ?"
@@ -80,18 +85,22 @@ public class NotesProvider extends ContentProvider {
         + " AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE;
 
     @Override
+    //Context仅在onCreate()函数中被初始化。    同时对mHelper进行初始化
     public boolean onCreate() {
         mHelper = NotesDatabaseHelper.getInstance(getContext());
         return true;
     }
 
     @Override
+    //使用游标Cursor方法查询Uri在数据库中对应的具体位置
     public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
             String sortOrder) {
         Cursor c = null;
+        //获取可读数据库
         SQLiteDatabase db = mHelper.getReadableDatabase();
         String id = null;
         switch (mMatcher.match(uri)) {
+            //对于不同的Uri匹配值，在数据库中查找其对应的条目
             case URI_NOTE:
                 c = db.query(TABLE.NOTE, projection, selection, selectionArgs, null, null,
                         sortOrder);
@@ -113,6 +122,7 @@ public class NotesProvider extends ContentProvider {
             case URI_SEARCH:
             case URI_SEARCH_SUGGEST:
                 if (sortOrder != null || projection != null) {
+                    //出现不合法的参数异常
                     throw new IllegalArgumentException(
                             "do not specify sortOrder, selection, selectionArgs, or projection" + "with this query");
                 }
@@ -120,7 +130,9 @@ public class NotesProvider extends ContentProvider {
                 String searchString = null;
                 if (mMatcher.match(uri) == URI_SEARCH_SUGGEST) {
                     if (uri.getPathSegments().size() > 1) {
+                        // 使用getPathSegments()方法得到一个String的List
                         searchString = uri.getPathSegments().get(1);
+                        // uri.getPathSegments().get(1)为第2个元素
                     }
                 } else {
                     searchString = uri.getQueryParameter("pattern");
@@ -139,6 +151,7 @@ public class NotesProvider extends ContentProvider {
                 }
                 break;
             default:
+                //throw 来抛出异常
                 throw new IllegalArgumentException("Unknown URI " + uri);
         }
         if (c != null) {
@@ -148,14 +161,18 @@ public class NotesProvider extends ContentProvider {
     }
 
     @Override
+    //insert，即插入一个Uri
     public Uri insert(Uri uri, ContentValues values) {
+        //获得一个可写的数据库WritableDatabase
         SQLiteDatabase db = mHelper.getWritableDatabase();
         long dataId = 0, noteId = 0, insertedId = 0;
         switch (mMatcher.match(uri)) {
+            //新增一个条目
             case URI_NOTE:
                 insertedId = noteId = db.insert(TABLE.NOTE, null, values);
                 break;
             case URI_DATA:
+                // 如果存在，查找NOTE_ID
                 if (values.containsKey(DataColumns.NOTE_ID)) {
                     noteId = values.getAsLong(DataColumns.NOTE_ID);
                 } else {
@@ -167,6 +184,7 @@ public class NotesProvider extends ContentProvider {
                 throw new IllegalArgumentException("Unknown URI " + uri);
         }
         // Notify the note uri
+        //notifyChange来获得一个ContentResolver对象并且对里面的内容作更新
         if (noteId > 0) {
             getContext().getContentResolver().notifyChange(
                     ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null);
@@ -177,14 +195,17 @@ public class NotesProvider extends ContentProvider {
             getContext().getContentResolver().notifyChange(
                     ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), null);
         }
-
+        // 返回插入的uri的路径
         return ContentUris.withAppendedId(uri, insertedId);
     }
 
     @Override
+    //以下是删除一个Uri
     public int delete(Uri uri, String selection, String[] selectionArgs) {
+        //Uri代表要操作的数据，安卓上的可用资源，图像，音频视频等资源都可以用Uri来表示
         int count = 0;
         String id = null;
+        //获得可写的数据库
         SQLiteDatabase db = mHelper.getWritableDatabase();
         boolean deleteData = false;
         switch (mMatcher.match(uri)) {
@@ -228,6 +249,7 @@ public class NotesProvider extends ContentProvider {
     }
 
     @Override
+    //更新一个Uri
     public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
         int count = 0;
         String id = null;
@@ -267,10 +289,12 @@ public class NotesProvider extends ContentProvider {
         return count;
     }
 
+    //将字符串String解析成规定的格式
     private String parseSelection(String selection) {
         return (!TextUtils.isEmpty(selection) ? " AND (" + selection + ')' : "");
     }
 
+    //增加一个便签，笔记版本，即noteVersion
     private void increaseNoteVersion(long id, String selection, String[] selectionArgs) {
         StringBuilder sql = new StringBuilder(120);
         sql.append("UPDATE ");
@@ -292,7 +316,7 @@ public class NotesProvider extends ContentProvider {
             }
             sql.append(selectString);
         }
-
+      // execSQL()是数据库的操作函数，可以执行insert、delete、update和CREATE TABLE之类有更改行为的SQL语句
         mHelper.getWritableDatabase().execSQL(sql.toString());
     }
 

doc/标注/210340090_邹国涛/SqlData.java

@@ -13,7 +13,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
+   /*用于支持小米便签最底层的数据库相关操作，和sqlnote的关系上是子集关系，即data是note的一个子集或者说是节点
+         SqlData就是所谓数据中的数据*/
 package net.micode.notes.gtask.data;
 
 import android.content.ContentResolver;
@@ -36,15 +37,21 @@ import org.json.JSONObject;
 
 
 public class SqlData {
+    // 功能：得到类的简写名称存入字符串TAG中
+    // 实现：调用getSimpleName ()函数来获取类的简写名称
     private static final String TAG = SqlData.class.getSimpleName();
 
     private static final int INVALID_ID = -99999;
+    //给mDataId设置初始值为-99999
+
 
+     //来自Notes类中定义的DataColumn中的一些常量
+    // 集合了interface DataColumns中所有SF常量
     public static final String[] PROJECTION_DATA = new String[] {
             DataColumns.ID, DataColumns.MIME_TYPE, DataColumns.CONTENT, DataColumns.DATA1,
             DataColumns.DATA3
     };
-
+    //下面五行的五个变量是作为SQL表中五列的编号
     public static final int DATA_ID_COLUMN = 0;
 
     public static final int DATA_MIME_TYPE_COLUMN = 1;
@@ -57,6 +64,8 @@ public class SqlData {
 
     private ContentResolver mContentResolver;
 
+
+    //判断是否直接用Content生成，是的话则为true，否则的话为false
     private boolean mIsCreate;
 
     private long mDataId;
@@ -71,10 +80,14 @@ public class SqlData {
 
     private ContentValues mDiffDataValues;
 
+    /* 功能：构造函数，用于初始化数据
+     参数注解：mContentResolver用于获取ContentProvider提供的数据
+     参数注解： mIsCreate表示当前数据是用哪种方式创建的，因为两种构造函数的参数是不同的 */
+
     public SqlData(Context context) {
         mContentResolver = context.getContentResolver();
         mIsCreate = true;
-        mDataId = INVALID_ID;
+        mDataId = INVALID_ID;    //mDataId置为初始值-99999（前面已经叙述过）
         mDataMimeType = DataConstants.NOTE;
         mDataContent = "";
         mDataContentData1 = 0;
@@ -82,6 +95,9 @@ public class SqlData {
         mDiffDataValues = new ContentValues();
     }
 
+    /* 功能：构造函数，用于初始化数据
+     参数注解：mContentResolver用于获取ContentProvider提供的数据
+     参数注解： mIsCreate表示当前数据是用哪种方式创建的，因为两种构造函数的参数是不同的 */
     public SqlData(Context context, Cursor c) {
         mContentResolver = context.getContentResolver();
         mIsCreate = false;
@@ -89,6 +105,9 @@ public class SqlData {
         mDiffDataValues = new ContentValues();
     }
 
+    /* 功能：从光标处加载数据
+      从当前的光标处将五列的数据加载到该类的对象之中 */
+
     private void loadFromCursor(Cursor c) {
         mDataId = c.getLong(DATA_ID_COLUMN);
         mDataMimeType = c.getString(DATA_MIME_TYPE_COLUMN);
@@ -97,7 +116,9 @@ public class SqlData {
         mDataContentData3 = c.getString(DATA_CONTENT_DATA_3_COLUMN);
     }
 
+    //功能：设置用于共享的数据，并提供异常抛出机制与处理机制
     public void setContent(JSONObject js) throws JSONException {
+        //如果传入的JSONObject对象中有DataColumns.ID这一项，则设置，否则设为INVALID_ID（使用？：格式）
         long dataId = js.has(DataColumns.ID) ? js.getLong(DataColumns.ID) : INVALID_ID;
         if (mIsCreate || mDataId != dataId) {
             mDiffDataValues.put(DataColumns.ID, dataId);
@@ -130,11 +151,13 @@ public class SqlData {
         mDataContentData3 = dataContentData3;
     }
 
+    //获取共享的数据内容，并提供异常抛出与处理机制
     public JSONObject getContent() throws JSONException {
         if (mIsCreate) {
             Log.e(TAG, "it seems that we haven't created this in database yet");
             return null;
         }
+        //创建JSONObject对象，将相关数据放入其中，并返回。
         JSONObject js = new JSONObject();
         js.put(DataColumns.ID, mDataId);
         js.put(DataColumns.MIME_TYPE, mDataMimeType);
@@ -144,6 +167,7 @@ public class SqlData {
         return js;
     }
 
+    //功能：commit函数用于把当前所做的修改保存到数据库
     public void commit(long noteId, boolean validateVersion, long version) {
 
         if (mIsCreate) {
@@ -182,7 +206,7 @@ public class SqlData {
         mDiffDataValues.clear();
         mIsCreate = false;
     }
-
+    //获取当前Id
     public long getId() {
         return mDataId;
     }

doc/标注/210340090_邹国涛/SqlNote.java

@@ -37,12 +37,16 @@ import org.json.JSONObject;
 
 import java.util.ArrayList;
 
+/*Description：用于支持小米便签最底层的数据库相关操作，和sqldata的关系上是父集关系，即note是data的子父集。
+         和SqlData相比，SqlNote 算是真正意义上的数据。*/
 
 public class SqlNote {
+    /* 功能：得到类的简写名称存入字符串TAG中
+	  实现：调用getSimpleName ()函数 */
     private static final String TAG = SqlNote.class.getSimpleName();
 
     private static final int INVALID_ID = -99999;
-
+    // 集合了interface NoteColumns中所有SF常量（17个）
     public static final String[] PROJECTION_NOTE = new String[] {
             NoteColumns.ID, NoteColumns.ALERTED_DATE, NoteColumns.BG_COLOR_ID,
             NoteColumns.CREATED_DATE, NoteColumns.HAS_ATTACHMENT, NoteColumns.MODIFIED_DATE,
@@ -52,6 +56,7 @@ public class SqlNote {
             NoteColumns.VERSION
     };
 
+    //以下设置17个列的编号
     public static final int ID_COLUMN = 0;
 
     public static final int ALERTED_DATE_COLUMN = 1;
@@ -86,6 +91,7 @@ public class SqlNote {
 
     public static final int VERSION_COLUMN = 16;
 
+    //一下定义了17个内部的变量，其中12个可以由content中获得，5个需要初始化为0或者new
     private Context mContext;
 
     private ContentResolver mContentResolver;
@@ -122,6 +128,10 @@ public class SqlNote {
 
     private ArrayList<SqlData> mDataList;
 
+    /*功能描述：构造函数
+      mIsCreate用于标示构造方式
+     */
+    //构造函数只有context，对所有的变量进行初始化
     public SqlNote(Context context) {
         mContext = context;
         mContentResolver = context.getContentResolver();
@@ -129,9 +139,9 @@ public class SqlNote {
         mId = INVALID_ID;
         mAlertDate = 0;
         mBgColorId = ResourceParser.getDefaultBgId(context);
-        mCreatedDate = System.currentTimeMillis();
+        mCreatedDate = System.currentTimeMillis();   //调用系统函数获得创建时间
         mHasAttachment = 0;
-        mModifiedDate = System.currentTimeMillis();
+        mModifiedDate = System.currentTimeMillis();  //最后一次修改时间初始化为创建时间
         mParentId = 0;
         mSnippet = "";
         mType = Notes.TYPE_NOTE;
@@ -143,6 +153,10 @@ public class SqlNote {
         mDataList = new ArrayList<SqlData>();
     }
 
+    /*功能：构造函数
+      mIsCreate用于标示构造方式 */
+
+    //构造函数有context和一个数据库的cursor，多数变量通过cursor指向的一条记录直接进行初始化
     public SqlNote(Context context, Cursor c) {
         mContext = context;
         mContentResolver = context.getContentResolver();
@@ -154,6 +168,8 @@ public class SqlNote {
         mDiffNoteValues = new ContentValues();
     }
 
+    /*功能：构造函数
+        mIsCreate用于标示构造方式*/
     public SqlNote(Context context, long id) {
         mContext = context;
         mContentResolver = context.getContentResolver();
@@ -166,16 +182,17 @@ public class SqlNote {
 
     }
 
+    //功能：通过id从光标处加载数据
     private void loadFromCursor(long id) {
         Cursor c = null;
         try {
             c = mContentResolver.query(Notes.CONTENT_NOTE_URI, PROJECTION_NOTE, "(_id=?)",
                     new String[] {
                         String.valueOf(id)
-                    }, null);
+                    }, null);  //通过id获得对应的ContentResolver中的cursor
             if (c != null) {
                 c.moveToNext();
-                loadFromCursor(c);
+                loadFromCursor(c);  //加载数据进行初始化
             } else {
                 Log.w(TAG, "loadFromCursor: cursor = null");
             }
@@ -185,7 +202,9 @@ public class SqlNote {
         }
     }
 
+    //功能：通过游标从光标处加载数据
     private void loadFromCursor(Cursor c) {
+        //直接从一条记录中获得以下变量的初始值
         mId = c.getLong(ID_COLUMN);
         mAlertDate = c.getLong(ALERTED_DATE_COLUMN);
         mBgColorId = c.getInt(BG_COLOR_ID_COLUMN);
@@ -200,6 +219,7 @@ public class SqlNote {
         mVersion = c.getLong(VERSION_COLUMN);
     }
 
+    //功能：通过content机制获取共享数据并加载到数据库当前游标处
     private void loadDataContent() {
         Cursor c = null;
         mDataList.clear();
@@ -226,6 +246,7 @@ public class SqlNote {
         }
     }
 
+    //功能：设置通过content机制用于共享的数据信息
     public boolean setContent(JSONObject js) {
         try {
             JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
@@ -359,6 +380,7 @@ public class SqlNote {
         return true;
     }
 
+    //功能：获取content机制提供的数据并加载到note中
     public JSONObject getContent() {
         try {
             JSONObject js = new JSONObject();
@@ -370,6 +392,7 @@ public class SqlNote {
 
             JSONObject note = new JSONObject();
             if (mType == Notes.TYPE_NOTE) {
+                //类型为note时
                 note.put(NoteColumns.ID, mId);
                 note.put(NoteColumns.ALERTED_DATE, mAlertDate);
                 note.put(NoteColumns.BG_COLOR_ID, mBgColorId);
@@ -393,6 +416,7 @@ public class SqlNote {
                 }
                 js.put(GTaskStringUtils.META_HEAD_DATA, dataArray);
             } else if (mType == Notes.TYPE_FOLDER || mType == Notes.TYPE_SYSTEM) {
+                //类型为文件夹或者系统时
                 note.put(NoteColumns.ID, mId);
                 note.put(NoteColumns.TYPE, mType);
                 note.put(NoteColumns.SNIPPET, mSnippet);
@@ -407,39 +431,49 @@ public class SqlNote {
         return null;
     }
 
+    //功能：给当前id设置父id
+
     public void setParentId(long id) {
         mParentId = id;
         mDiffNoteValues.put(NoteColumns.PARENT_ID, id);
     }
 
+    //功能：给当前id设置Gtaskid
     public void setGtaskId(String gid) {
         mDiffNoteValues.put(NoteColumns.GTASK_ID, gid);
     }
 
+    //功能：给当前id设置同步id
     public void setSyncId(long syncId) {
         mDiffNoteValues.put(NoteColumns.SYNC_ID, syncId);
     }
 
+    //功能：初始化本地修改，即撤销所有当前修改
     public void resetLocalModified() {
         mDiffNoteValues.put(NoteColumns.LOCAL_MODIFIED, 0);
     }
 
+    //功能：获得当前id
     public long getId() {
         return mId;
     }
 
+    //功能：获得当前的id的父id
     public long getParentId() {
         return mParentId;
     }
 
+   //功能：获取小片段即用于显示的部分便签内容
     public String getSnippet() {
         return mSnippet;
     }
 
+    //功能：判断是否为便签类型
     public boolean isNoteType() {
         return mType == Notes.TYPE_NOTE;
     }
 
+    //功能：commit函数用于把当前所做的修改保存到数据库
     public void commit(boolean validateVersion) {
         if (mIsCreate) {
             if (mId == INVALID_ID && mDiffNoteValues.containsKey(NoteColumns.ID)) {
@@ -458,7 +492,7 @@ public class SqlNote {
             }
 
             if (mType == Notes.TYPE_NOTE) {
-                for (SqlData sqlData : mDataList) {
+                for (SqlData sqlData : mDataList) {  //直接使用sqldata中的实现
                     sqlData.commit(mId, false, -1);
                 }
             }
@@ -470,7 +504,7 @@ public class SqlNote {
             if (mDiffNoteValues.size() > 0) {
                 mVersion ++;
                 int result = 0;
-                if (!validateVersion) {
+                if (!validateVersion) {  //构造字符串
                     result = mContentResolver.update(Notes.CONTENT_NOTE_URI, mDiffNoteValues, "("
                             + NoteColumns.ID + "=?)", new String[] {
                         String.valueOf(mId)

doc/标注/210340090_邹国涛/Task.java

@@ -35,22 +35,22 @@ import org.json.JSONObject;
 public class Task extends Node {
     private static final String TAG = Task.class.getSimpleName();
 
-    private boolean mCompleted;
+    private boolean mCompleted;  //看是否完成
 
     private String mNotes;
 
-    private JSONObject mMetaInfo;
+    private JSONObject mMetaInfo;  //将要在实例中存储数据的类型
 
-    private Task mPriorSibling;
+    private Task mPriorSibling;  //对应的优先兄弟Task的指针，但是仍有待完善
 
-    private TaskList mParent;
+    private TaskList mParent;  //所在的任务列表的指针
 
     public Task() {
         super();
         mCompleted = false;
         mNotes = null;
-        mPriorSibling = null;
-        mParent = null;
+        mPriorSibling = null; //TaskList中当前Task前面的Task的指针
+        mParent = null;       //当前Task所在的TaskList
         mMetaInfo = null;
     }