update

.idea/.gitignore

@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml

.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/gitProject1.iml" filepath="$PROJECT_DIR$/.idea/gitProject1.iml" />
+    </modules>
+  </component>
+</project>

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>

src/Notes/app/src/main/AndroidManifest.xml

@@ -21,7 +21,6 @@
     android:versionCode="1"
     android:versionName="0.1" >
 
-<!--    添加 tools:ignore="GradleOverrides" 忽略 Gradle 对 minSdkVersion 的重写-->
     <uses-sdk android:minSdkVersion="14"
         tools:ignore="GradleOverrides" />
 
@@ -40,8 +39,6 @@
         android:icon="@drawable/icon_app"
         android:label="@string/app_name" >
 
-<!--        添加：android:exported="true" -->
-<!--        原因：As of Android 12, android:exported must be set; use true to make the activity available to other apps, and false otherwise. For launcher activities, this should be set to true.-->
 <!--        移除：android:label="@string/app_name"-->
 <!--        原因：Redundant label can be removed.（冗余标签可以移除，第41行已经给出）-->
 
@@ -60,9 +57,6 @@
             </intent-filter>
         </activity>
 
-        <!--        添加：android:exported="true" -->
-        <!--        原因： As of Android 12, android:exported must be set; use true to make the activity available to other apps, and false otherwise. For launcher activities, this should be set to true.-->
-
         <activity
             android:name=".ui.NoteEditActivity"
             android:configChanges="keyboardHidden|orientation|screenSize"
@@ -95,8 +89,6 @@
                 android:resource="@xml/searchable" />
         </activity>
 
-<!--        添加：android:exported="false"-->
-<!--        原因：Exported content providers can provide access to potentially sensitive data-->
 
         <provider
             android:name="net.micode.notes.data.NotesProvider"
@@ -104,8 +96,6 @@
             android:multiprocess="true"
             android:exported="false" />
 
-<!--        添加：android:exported="true" -->
-<!--        原因： As of Android 12, android:exported must be set; use true to make the activity available to other apps, and false otherwise. For launcher activities, this should be set to true.-->
 
         <receiver
             android:name=".widget.NoteWidgetProvider_2x"
@@ -122,9 +112,6 @@
                 android:resource="@xml/widget_2x_info" />
         </receiver>
 
-        <!--        添加：android:exported="true" -->
-        <!--        原因： As of Android 12, android:exported must be set; use true to make the activity available to other apps, and false otherwise. For launcher activities, this should be set to true.-->
-
 
         <receiver
             android:name=".widget.NoteWidgetProvider_4x"
@@ -142,9 +129,6 @@
                 android:resource="@xml/widget_4x_info" />
         </receiver>
 
-        <!--        添加：android:exported="true" -->
-        <!--        原因： As of Android 12, android:exported must be set; use true to make the activity available to other apps, and false otherwise. For launcher activities, this should be set to true.-->
-
 
         <receiver android:name=".ui.AlarmInitReceiver"
             android:exported="true">
@@ -158,9 +142,6 @@
             android:process=":remote" >
         </receiver>
 
-        <!--        移除：android:label="@string/app_name"-->
-        <!--        原因：Redundant label can be removed.（冗余标签可以移除，第41行已经给出）-->
-
         <activity
             android:name=".ui.AlarmAlertActivity"
             android:launchMode="singleInstance"

src/Notes/app/src/main/java/net/micode/notes/data/Notes.java

@@ -45,6 +45,7 @@ public class Notes {
     public static final int TYPE_WIDGET_INVALIDE      = -1;
     public static final int TYPE_WIDGET_2X            = 0;
     public static final int TYPE_WIDGET_4X            = 1;
+    public static final int TYPE_WIDGET_3X            = 2; // 3x3窗口小部件
 
     public static class DataConstants {
         public static final String NOTE = TextNote.CONTENT_ITEM_TYPE;

src/Notes/app/src/main/java/net/micode/notes/tool/BackupUtils.java

@@ -40,7 +40,7 @@ public class BackupUtils {
     private static final String TAG = "BackupUtils";
     // Singleton stuff
     private static BackupUtils sInstance;
-
+//如果当前备份不存在，则新声明一个
     public static synchronized BackupUtils getInstance(Context context) {
         if (sInstance == null) {
             sInstance = new BackupUtils(context);
@@ -51,16 +51,17 @@ public class BackupUtils {
     /**
      * Following states are signs to represents backup or restore
      * status
+     * 以下状态表示备份或恢复
      */
-    // 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 备份或还原成功
     public static final int STATE_SUCCESS                      = 4;
 
     private TextExport mTextExport;
@@ -72,34 +73,34 @@ public class BackupUtils {
     private static boolean externalStorageAvailable() {
         return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
     }
-
+//判断外部存储功能是否可用
     public int exportToText() {
         return mTextExport.exportToText();
     }
-
+//输出至文本
     public String getExportedTextFileName() {
         return mTextExport.mFileName;
     }
-
+//获取输出的文本文件名
     public String getExportedTextFileDir() {
         return mTextExport.mFileDirectory;
     }
-
+//获取输出文本文件目录
-    private static class TextExport {
+    private static class TextExport {//内部类：文本输出定义笔记ID、修改日期等，笔记、内容、日期、电话号码的数据和格式等常量
         private static final String[] NOTE_PROJECTION = {
                 NoteColumns.ID,
                 NoteColumns.MODIFIED_DATE,
                 NoteColumns.SNIPPET,
                 NoteColumns.TYPE
         };
-
+    //下面几行标识数组里属性值
         private static final int NOTE_COLUMN_ID = 0;
 
         private static final int NOTE_COLUMN_MODIFIED_DATE = 1;
 
         private static final int NOTE_COLUMN_SNIPPET = 2;
 
-        private static final String[] DATA_PROJECTION = {
+        private static final String[] DATA_PROJECTION = {//字符串储存便签的基本信息
                 DataColumns.CONTENT,
                 DataColumns.MIME_TYPE,
                 DataColumns.DATA1,
@@ -107,7 +108,7 @@ public class BackupUtils {
                 DataColumns.DATA3,
                 DataColumns.DATA4,
         };
-
+//标识设定：数据内容标识为0；媒体类型标识为1；访问日期标识为2；电话号码标识为4；
         private static final int DATA_COLUMN_CONTENT = 0;
 
         private static final int DATA_COLUMN_MIME_TYPE = 1;
@@ -115,17 +116,17 @@ public class BackupUtils {
         private static final int DATA_COLUMN_CALL_DATE = 2;
 
         private static final int DATA_COLUMN_PHONE_NUMBER = 4;
-
+//文档格式标识：名称标识为0;日期标识为1;内容标识为2
         private final String [] TEXT_FORMAT;
         private static final int FORMAT_FOLDER_NAME          = 0;
         private static final int FORMAT_NOTE_DATE            = 1;
         private static final int FORMAT_NOTE_CONTENT         = 2;
-
+//定义文件名、上下文、文件夹路径三个类
         private Context mContext;
         private String mFileName;
         private String mFileDirectory;
 
-        public TextExport(Context context) {
+        public TextExport(Context context) {//从context获取便签的信息，并给其中一些成员赋予初值
             TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note);
             mContext = context;
             mFileName = "";
@@ -134,12 +135,13 @@ public class BackupUtils {
 
         private String getFormat(int id) {
             return TEXT_FORMAT[id];
-        }
+        }//通过ID返回文件的格式信息
 
         /**
          * Export the folder identified by folder id to text
          */
-        private void exportFolderToText(String folderId, PrintStream ps) {
+        private void exportFolderToText(String folderId, PrintStream ps) {//
+            // 通过文件ID找到该文件下的便签，并且打印出该便签最后修改的日期，并且将该便签的内容输出并显示出来。
             // Query notes belong to this folder
             Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI,
                     NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[] {
@@ -166,6 +168,7 @@ public class BackupUtils {
          * Export note identified by id to a print stream
          */
         private void exportNoteToText(String noteId, PrintStream ps) {
+            //将便签的内容以文本的形式显示在屏幕上。比如电话号码、打电话的日期等。
             Cursor dataCursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI,
                     DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] {
                         noteId
@@ -206,7 +209,7 @@ public class BackupUtils {
                 dataCursor.close();
             }
             // print a line separator between note
-            try {
+            try {//在note下面输出一条线
                 ps.write(new byte[] {
                         Character.LINE_SEPARATOR, Character.LETTER_NUMBER
                 });
@@ -218,26 +221,26 @@ public class BackupUtils {
         /**
          * Note will be exported as text which is user readable
          */
-        public int exportToText() {
+        public int exportToText() {//将note里面的内容输出到用户的屏幕
-            if (!externalStorageAvailable()) {
+            if (!externalStorageAvailable()) {//检查外部设备安装情况
                 Log.d(TAG, "Media was not mounted");
                 return STATE_SD_CARD_UNMOUONTED;
             }
 
             PrintStream ps = getExportToTextPrintStream();
             if (ps == null) {
-                Log.e(TAG, "get print stream error");
+                Log.e(TAG, "get print stream error");//先导出对应的目录，然后导出对应的便签
                 return STATE_SYSTEM_ERROR;
             }
             // First export folder and its notes
-            Cursor folderCursor = mContext.getContentResolver().query(
+            Cursor folderCursor = mContext.getContentResolver().query(//定位需要导出的文件夹
                     Notes.CONTENT_NOTE_URI,
                     NOTE_PROJECTION,
                     "(" + NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER + " AND "
                             + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + ") OR "
                             + NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER, null, null);
 
-            if (folderCursor != null) {
+            if (folderCursor != null) {//导出文件夹，把里面的便签导出来
                 if (folderCursor.moveToFirst()) {
                     do {
                         // Print folder's name
@@ -258,13 +261,13 @@ public class BackupUtils {
             }
 
             // Export notes in root's folder
-            Cursor noteCursor = mContext.getContentResolver().query(
+            Cursor noteCursor = mContext.getContentResolver().query(//输出根目录下的便签
                     Notes.CONTENT_NOTE_URI,
                     NOTE_PROJECTION,
                     NoteColumns.TYPE + "=" + +Notes.TYPE_NOTE + " AND " + NoteColumns.PARENT_ID
                             + "=0", null, null);
 
-            if (noteCursor != null) {
+            if (noteCursor != null) {//输出修改的时间
                 if (noteCursor.moveToFirst()) {
                     do {
                         ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format(
@@ -285,17 +288,17 @@ public class BackupUtils {
         /**
          * Get a print stream pointed to the file {@generateExportedTextFile}
          */
-        private PrintStream getExportToTextPrintStream() {
+        private PrintStream getExportToTextPrintStream() {//获取指向文件的打印流
             File file = generateFileMountedOnSDcard(mContext, R.string.file_path,
                     R.string.file_name_txt_format);
             if (file == null) {
                 Log.e(TAG, "create file to exported failed");
                 return null;
-            }
+            }//初始化储存在SD卡中的文件，如果为空，创造失败
-            mFileName = file.getName();
+            mFileName = file.getName();//得到文件名
-            mFileDirectory = mContext.getString(R.string.file_path);
+            mFileDirectory = mContext.getString(R.string.file_path);//得到文件路径
             PrintStream ps = null;
-            try {
+            try {//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
                 FileOutputStream fos = new FileOutputStream(file);
                 ps = new PrintStream(fos);
             } catch (FileNotFoundException e) {
@@ -313,6 +316,7 @@ public class BackupUtils {
      * Generate the text file to store imported data
      */
     private static File generateFileMountedOnSDcard(Context context, int filePathResId, int fileNameFormatResId) {
+        //生成存储文件，安装在SD卡上
         StringBuilder sb = new StringBuilder();
         sb.append(Environment.getExternalStorageDirectory());
         sb.append(context.getString(filePathResId));
@@ -323,7 +327,7 @@ public class BackupUtils {
                         System.currentTimeMillis())));
         File file = new File(sb.toString());
 
-        try {
+        try {//如果这些文件不存在，则新建
             if (!filedir.exists()) {
                 filedir.mkdir();
             }

src/Notes/app/src/main/java/net/micode/notes/tool/DataUtils.java

@@ -35,10 +35,10 @@ import java.util.ArrayList;
 import java.util.HashSet;
 
 
-public class DataUtils {
+public class DataUtils {//定义便签的处理工具类
     public static final String TAG = "DataUtils";
-    public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) {
+    public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) {//一个处理批量删除便签的方法
-        if (ids == null) {
+        if (ids == null) {//判断笔记是否为空
             Log.d(TAG, "the ids is null");
             return true;
         }
@@ -48,23 +48,23 @@ public class DataUtils {
         }
 
         ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
-        for (long id : ids) {
+        for (long id : ids) {//遍历便签id
             if(id == Notes.ID_ROOT_FOLDER) {
-                Log.e(TAG, "Don't delete system folder root");
+                Log.e(TAG, "Don't delete system folder root");//.如果是根目录的文件夹，输出Don't delete system folder root
                 continue;
             }
-            ContentProviderOperation.Builder builder = ContentProviderOperation
+            ContentProviderOperation.Builder builder = ContentProviderOperation//批量的删除对应的ID
                     .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
             operationList.add(builder.build());
         }
-        try {
+        try {//返回被删除的数据，如果返回为空则删除失败返回false，打印异常信息，删除成功返回true
             ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
             if (results == null || results.length == 0 || results[0] == null) {
                 Log.d(TAG, "delete notes failed, ids:" + ids.toString());
                 return false;
             }
             return true;
-        } catch (RemoteException e) {
+        } catch (RemoteException e) {//错误处理
             Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
         } catch (OperationApplicationException e) {
             Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
@@ -73,6 +73,7 @@ public class DataUtils {
     }
 
     public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) {
+        //将某便签移动到另一个目录下
         ContentValues values = new ContentValues();
         values.put(NoteColumns.PARENT_ID, desFolderId);
         values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId);
@@ -80,7 +81,7 @@ public class DataUtils {
         resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null);
     }
 
-    public static boolean batchMoveToFolder(ContentResolver resolver, HashSet<Long> ids,
+    public static boolean batchMoveToFolder(ContentResolver resolver, HashSet<Long> ids,//批量移动
             long folderId) {
         if (ids == null) {
             Log.d(TAG, "the ids is null");
@@ -88,7 +89,7 @@ public class DataUtils {
         }
 
         ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
-        for (long id : ids) {
+        for (long id : ids) {//遍历便签ID
             ContentProviderOperation.Builder builder = ContentProviderOperation
                     .newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
             builder.withValue(NoteColumns.PARENT_ID, folderId);
@@ -96,7 +97,7 @@ public class DataUtils {
             operationList.add(builder.build());
         }
 
-        try {
+        try {//错误检测
             ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
             if (results == null || results.length == 0 || results[0] == null) {
                 Log.d(TAG, "delete notes failed, ids:" + ids.toString());
@@ -114,7 +115,7 @@ public class DataUtils {
     /**
      * Get the all folder count except system folders {@link Notes#TYPE_SYSTEM}}
      */
-    public static int getUserFolderCount(ContentResolver resolver) {
+    public static int getUserFolderCount(ContentResolver resolver) {//得到文件夹数目
         Cursor cursor =resolver.query(Notes.CONTENT_NOTE_URI,
                 new String[] { "COUNT(*)" },
                 NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?",
@@ -136,14 +137,14 @@ public class DataUtils {
         return count;
     }
 
-    public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) {
+    public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) {//在数据库中是否可见
         Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
                 null,
                 NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER,
                 new String [] {String.valueOf(type)},
                 null);
 
-        boolean exist = false;
+        boolean exist = false;//判断note是否在数据库中，并返回相应的布尔值
         if (cursor != null) {
             if (cursor.getCount() > 0) {
                 exist = true;
@@ -153,7 +154,7 @@ public class DataUtils {
         return exist;
     }
 
-    public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) {
+    public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) {//通过便签ID搜索，判断该note是否在数据库中存在
         Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
                 null, null, null, null);
 
@@ -167,7 +168,7 @@ public class DataUtils {
         return exist;
     }
 
-    public static boolean existInDataDatabase(ContentResolver resolver, long dataId) {
+    public static boolean existInDataDatabase(ContentResolver resolver, long dataId) {//通过名字查询是否在数据库中存在
         Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId),
                 null, null, null, null);
 
@@ -181,7 +182,7 @@ public class DataUtils {
         return exist;
     }
 
-    public static boolean checkVisibleFolderName(ContentResolver resolver, String name) {
+    public static boolean checkVisibleFolderName(ContentResolver resolver, String name) {//检查文件名以获取文件是否存在
         Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, null,
                 NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER +
                 " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER +
@@ -197,7 +198,7 @@ public class DataUtils {
         return exist;
     }
 
-    public static HashSet<AppWidgetAttribute> getFolderNoteWidget(ContentResolver resolver, long folderId) {
+    public static HashSet<AppWidgetAttribute> getFolderNoteWidget(ContentResolver resolver, long folderId) {//获得文件夹窗口小部件
         Cursor c = resolver.query(Notes.CONTENT_NOTE_URI,
                 new String[] { NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE },
                 NoteColumns.PARENT_ID + "=?",
@@ -209,12 +210,12 @@ public class DataUtils {
             if (c.moveToFirst()) {
                 set = new HashSet<AppWidgetAttribute>();
                 do {
-                    try {
+                    try {//把每一个条目对应的窗口id和type记录下来，放到set里面。
                         AppWidgetAttribute widget = new AppWidgetAttribute();
                         widget.widgetId = c.getInt(0);
                         widget.widgetType = c.getInt(1);
                         set.add(widget);
-                    } catch (IndexOutOfBoundsException e) {
+                    } catch (IndexOutOfBoundsException e) {//当下标超过边界，那么返回错误
                         Log.e(TAG, e.toString());
                     }
                 } while (c.moveToNext());
@@ -224,14 +225,14 @@ public class DataUtils {
         return set;
     }
 
-    public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) {
+    public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) {//通过笔记ID获取号码
         Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
                 new String [] { CallNote.PHONE_NUMBER },
                 CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?",
                 new String [] { String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE },
                 null);
 
-        if (cursor != null && cursor.moveToFirst()) {
+        if (cursor != null && cursor.moveToFirst()) {//获取电话号码，并处理异常
             try {
                 return cursor.getString(0);
             } catch (IndexOutOfBoundsException e) {
@@ -243,7 +244,7 @@ public class DataUtils {
         return "";
     }
 
-    public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) {
+    public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) {//通过号码和日期获取ID
         Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
                 new String [] { CallNote.NOTE_ID },
                 CallNote.CALL_DATE + "=? AND " + CallNote.MIME_TYPE + "=? AND PHONE_NUMBERS_EQUAL("
@@ -264,7 +265,7 @@ public class DataUtils {
         return 0;
     }
 
-    public static String getSnippetById(ContentResolver resolver, long noteId) {
+    public static String getSnippetById(ContentResolver resolver, long noteId) {//通过Note的Id获取Note的片段
         Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI,
                 new String [] { NoteColumns.SNIPPET },
                 NoteColumns.ID + "=?",
@@ -282,7 +283,7 @@ 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) {//格式化，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');

src/Notes/app/src/main/java/net/micode/notes/tool/GTaskStringUtils.java

@@ -17,7 +17,8 @@
 package net.micode.notes.tool;
 
 public class GTaskStringUtils {
-
+//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，是非常好的编程规范
     public final static String GTASK_JSON_ACTION_ID = "action_id";
 
     public final static String GTASK_JSON_ACTION_LIST = "action_list";

src/Notes/app/src/main/java/net/micode/notes/tool/ResourceParser.java

@@ -23,7 +23,7 @@ import net.micode.notes.R;
 import net.micode.notes.ui.NotesPreferenceActivity;
 
 public class ResourceParser {
-
+//ResourceParser类，资源分析，实际上就是获取资源并且在程序中使用，比如图片资源、布局资源、字体大小等
     public static final int YELLOW           = 0;
     public static final int BLUE             = 1;
     public static final int WHITE            = 2;
@@ -39,7 +39,7 @@ public class ResourceParser {
 
     public static final int BG_DEFAULT_FONT_SIZE = TEXT_MEDIUM;
 
-    public static class NoteBgResources {
+    public static class NoteBgResources {//背景资源的获取
         private final static int [] BG_EDIT_RESOURCES = new int [] {
             R.drawable.edit_yellow,
             R.drawable.edit_blue,
@@ -59,13 +59,13 @@ public class ResourceParser {
         public static int getNoteBgResource(int id) {
             return BG_EDIT_RESOURCES[id];
         }
-
+//获取Note的背景颜色
         public static int getNoteTitleBgResource(int id) {
             return BG_EDIT_TITLE_RESOURCES[id];
         }
     }
-
+//ID可以查找到编辑框的颜色的地址
-    public static int getDefaultBgId(Context context) {
+    public static int getDefaultBgId(Context context) {//直接获取默认的背景颜色
         if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean(
                 NotesPreferenceActivity.PREFERENCE_SET_BG_COLOR_KEY, false)) {
             return (int) (Math.random() * NoteBgResources.BG_EDIT_RESOURCES.length);
@@ -74,7 +74,7 @@ public class ResourceParser {
         }
     }
 
-    public static class NoteItemBgResources {
+    public static class NoteItemBgResources {//便签背景资源类
         private final static int [] BG_FIRST_RESOURCES = new int [] {
             R.drawable.list_yellow_up,
             R.drawable.list_blue_up,
@@ -128,8 +128,8 @@ public class ResourceParser {
         }
     }
 
-    public static class WidgetBgResources {
+    public static class WidgetBgResources {//获取图片资源类
-        private final static int [] BG_2X_RESOURCES = new int [] {
+        private final static int [] BG_2X_RESOURCES = new int [] {//通过id获得2x的小窗口背景资源
             R.drawable.widget_2x_yellow,
             R.drawable.widget_2x_blue,
             R.drawable.widget_2x_white,
@@ -140,7 +140,7 @@ public class ResourceParser {
         public static int getWidget2xBgResource(int id) {
             return BG_2X_RESOURCES[id];
         }
-
+//通过ID获取较小的图片
         private final static int [] BG_4X_RESOURCES = new int [] {
             R.drawable.widget_4x_yellow,
             R.drawable.widget_4x_blue,
@@ -153,7 +153,7 @@ public class ResourceParser {
             return BG_4X_RESOURCES[id];
         }
     }
-
+//根据ID加载BG_4X_RESOURCES数组里的颜色资源序号。
     public static class TextAppearanceResources {
         private final static int [] TEXTAPPEARANCE_RESOURCES = new int [] {
             R.style.TextAppearanceNormal,
@@ -161,7 +161,7 @@ public class ResourceParser {
             R.style.TextAppearanceLarge,
             R.style.TextAppearanceSuper
         };
-
+//文本外观资源，包括默认字体，以及获取资源大小
         public static int getTexAppearanceResource(int id) {
             /**
              * HACKME: Fix bug of store the resource id in shared preference.
@@ -173,9 +173,10 @@ public class ResourceParser {
             }
             return TEXTAPPEARANCE_RESOURCES[id];
         }
-
+//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 getResourcesSize() {
             return TEXTAPPEARANCE_RESOURCES.length;
         }
     }
 }
+//直接返回为资源的长度

src/Notes/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java

@@ -63,6 +63,7 @@ import net.micode.notes.tool.ResourceParser.TextAppearanceResources;
 import net.micode.notes.ui.DateTimePickerDialog.OnDateTimeSetListener;
 import net.micode.notes.ui.NoteEditText.OnTextViewChangeListener;
 import net.micode.notes.widget.NoteWidgetProvider_2x;
+import net.micode.notes.widget.NoteWidgetProvider_3x;
 import net.micode.notes.widget.NoteWidgetProvider_4x;
 
 import java.util.HashMap;
@@ -412,8 +413,10 @@ public class NoteEditActivity extends Activity implements OnClickListener,
             intent.setClass(this, NoteWidgetProvider_2x.class);
         } else if (mWorkingNote.getWidgetType() == Notes.TYPE_WIDGET_4X) {
             intent.setClass(this, NoteWidgetProvider_4x.class);
+        } else if (mWorkingNote.getWidgetType() == Notes.TYPE_WIDGET_3X) {
+            intent.setClass(this, NoteWidgetProvider_3x.class);
         } else {
-            Log.e(TAG, "Unspported widget type");
+            Log.e(TAG, "Unsupported widget type");
             return;
         }
 
@@ -430,7 +433,7 @@ 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);

src/Notes/app/src/main/java/net/micode/notes/ui/NotesListActivity.java

@@ -70,6 +70,7 @@ import net.micode.notes.tool.DataUtils;
 import net.micode.notes.tool.ResourceParser;
 import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute;
 import net.micode.notes.widget.NoteWidgetProvider_2x;
+import net.micode.notes.widget.NoteWidgetProvider_3x;
 import net.micode.notes.widget.NoteWidgetProvider_4x;
 
 import java.io.BufferedReader;
@@ -141,7 +142,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
         setContentView(R.layout.note_list);
         initResources();
 
-        /**
+        /*
          * Insert an introduction when user firstly use this application
          */
         setAppInfoFromRawRes();
@@ -694,6 +695,8 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
             intent.setClass(this, NoteWidgetProvider_2x.class);
         } else if (appWidgetType == Notes.TYPE_WIDGET_4X) {
             intent.setClass(this, NoteWidgetProvider_4x.class);
+        } else if (appWidgetType == Notes.TYPE_WIDGET_3X) {
+            intent.setClass(this, NoteWidgetProvider_3x.class);
         } else {
             Log.e(TAG, "Unspported widget type");
             return;

src/Notes/app/src/main/java/net/micode/notes/widget/NoteWidgetProvider.java

@@ -32,7 +32,8 @@ import net.micode.notes.tool.ResourceParser;
 import net.micode.notes.ui.NoteEditActivity;
 import net.micode.notes.ui.NotesListActivity;
 
-public abstract class NoteWidgetProvider extends AppWidgetProvider {
+// 该类实现了桌面中的窗口小部件
+public abstract class NoteWidgetProvider extends AppWidgetProvider { // 小米便签窗口小部件
     public static final String [] PROJECTION = new String [] {
         NoteColumns.ID,
         NoteColumns.BG_COLOR_ID,
@@ -46,7 +47,7 @@ public abstract class NoteWidgetProvider extends AppWidgetProvider {
     private static final String TAG = "NoteWidgetProvider";
 
     @Override
-    public void onDeleted(Context context, int[] appWidgetIds) {
+    public void onDeleted(Context context, int[] appWidgetIds) { // 重写删除窗口小部件函数
         ContentValues values = new ContentValues();
         values.put(NoteColumns.WIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
         for (int i = 0; i < appWidgetIds.length; i++) {
@@ -57,7 +58,7 @@ public abstract class NoteWidgetProvider extends AppWidgetProvider {
         }
     }
 
-    private Cursor getNoteWidgetInfo(Context context, int widgetId) {
+    private Cursor getNoteWidgetInfo(Context context, int widgetId) { // 获取窗口小部件宽度信息
         return context.getContentResolver().query(Notes.CONTENT_NOTE_URI,
                 PROJECTION,
                 NoteColumns.WIDGET_ID + "=? AND " + NoteColumns.PARENT_ID + "<>?",
@@ -70,7 +71,7 @@ public abstract class NoteWidgetProvider extends AppWidgetProvider {
     }
 
     private void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds,
-            boolean privacyMode) {
+            boolean privacyMode) { // 更新窗口小部件中的内容
         for (int i = 0; i < appWidgetIds.length; i++) {
             if (appWidgetIds[i] != AppWidgetManager.INVALID_APPWIDGET_ID) {
                 int bgId = ResourceParser.getDefaultBgId(context);
@@ -124,9 +125,9 @@ public abstract class NoteWidgetProvider extends AppWidgetProvider {
         }
     }
 
-    protected abstract int getBgResourceId(int bgId);
+    protected abstract int getBgResourceId(int bgId); // 从背景资源中获取当前应用ID
 
-    protected abstract int getLayoutId();
+    protected abstract int getLayoutId(); // 获取布局ID
 
-    protected abstract int getWidgetType();
+    protected abstract int getWidgetType(); // 获取窗口小部件的类型，即2x2型或者4x4型
 }

src/Notes/app/src/main/java/net/micode/notes/widget/NoteWidgetProvider_2x.java

@@ -24,23 +24,23 @@ import net.micode.notes.data.Notes;
 import net.micode.notes.tool.ResourceParser;
 
 
-public class NoteWidgetProvider_2x extends NoteWidgetProvider {
+public class NoteWidgetProvider_2x extends NoteWidgetProvider { // 2x2大小的窗口小部件
-    @Override
+    @Override // 重写窗口小部件中的更新函数
     public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
         super.update(context, appWidgetManager, appWidgetIds);
     }
 
-    @Override
+    @Override // 重写窗口小部件中的获取布局ID函数
     protected int getLayoutId() {
         return R.layout.widget_2x;
     }
 
-    @Override
+    @Override // 重写窗口小部件中的获取资源ID函数
     protected int getBgResourceId(int bgId) {
         return ResourceParser.WidgetBgResources.getWidget2xBgResource(bgId);
     }
 
-    @Override
+    @Override // 重写窗口小部件中的获取宽度类型函数
     protected int getWidgetType() {
         return Notes.TYPE_WIDGET_2X;
     }

src/Notes/app/src/main/java/net/micode/notes/widget/NoteWidgetProvider_3x.java

@@ -0,0 +1,31 @@
+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_3x extends NoteWidgetProvider{ // 3x3大小的窗口小部件
+
+    @Override
+    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
+        super.update(context, appWidgetManager, appWidgetIds);
+    }
+
+    @Override // 重写窗口小部件中的获取布局ID函数
+    protected int getLayoutId() {
+        return R.layout.widget_3x;
+    }
+
+    @Override // 重写窗口小部件中的获取资源ID函数
+    protected int getBgResourceId(int bgId) {
+        return ResourceParser.WidgetBgResources.getWidget2xBgResource(bgId);
+    }
+
+    @Override // 重写窗口小部件中的获取宽度类型函数
+    protected int getWidgetType() {
+        return Notes.TYPE_WIDGET_3X;
+    }
+}

src/Notes/app/src/main/java/net/micode/notes/widget/NoteWidgetProvider_4x.java

@@ -24,22 +24,23 @@ import net.micode.notes.data.Notes;
 import net.micode.notes.tool.ResourceParser;
 
 
-public class NoteWidgetProvider_4x extends NoteWidgetProvider {
+public class NoteWidgetProvider_4x extends NoteWidgetProvider { // 4x4大小的窗口小部件
-    @Override
+    @Override // 重写窗口小部件中的更新函数
     public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
         super.update(context, appWidgetManager, appWidgetIds);
     }
 
+    @Override // 重写窗口小部件中的获取布局ID函数
     protected int getLayoutId() {
         return R.layout.widget_4x;
     }
 
-    @Override
+    @Override // 重写窗口小部件中的获取资源ID函数
     protected int getBgResourceId(int bgId) {
         return ResourceParser.WidgetBgResources.getWidget4xBgResource(bgId);
     }
 
-    @Override
+    @Override // 重写窗口小部件中的获取宽度类型函数
     protected int getWidgetType() {
         return Notes.TYPE_WIDGET_4X;
     }

src/Notes/app/src/main/res/layout/widget_3x.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<FrameLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="220dip"
+    android:layout_height="220dip">
+    <ImageView
+        android:id="@+id/widget_bg_image"
+        android:layout_width="fill_parent"
+        android:layout_height="fill_parent" />
+    <TextView
+        android:id="@+id/widget_text"
+        android:layout_width="fill_parent"
+        android:layout_height="fill_parent"
+        android:paddingTop="30dip"
+        android:paddingLeft="15dip"
+        android:paddingRight="15dip"
+        android:textSize="14sp"
+        android:textColor="#FF663300"
+        android:maxLines="9"
+        android:lineSpacingMultiplier="1.2" />
+</FrameLayout>