.gitignore

@@ -0,0 +1,9 @@
+# generated files
+bin/
+gen/
+
+# Local configuration file (sdk path, etc)
+project.properties
+.settings/
+.classpath
+.project

README

@@ -0,0 +1,23 @@
+[中文]
+
+1. MiCode便签是小米便签的社区开源版，由MIUI团队(www.miui.com) 发起并贡献第一批代码，遵循NOTICE文件所描述的开源协议，
+   今后为MiCode社区(www.micode.net) 拥有，并由社区发布和维护。
+
+2. Bug反馈和跟踪，请访问Github,
+   https://github.com/MiCode/Notes/issues?sort=created&direction=desc&state=open
+
+3. 功能建议和综合讨论，请访问MiCode,
+   http://micode.net/forum.php?mod=forumdisplay&fid=38
+
+
+[English]
+
+1. MiCode Notes is open source edition of XM notepad, it's first initiated and sponsored by MIUI team (www.miui.com).
+   It's opened under license described by NOTICE file. It's owned by the MiCode community (www.micode.net). In future,
+   the MiCode community will release and maintain this project.
+
+2. Regarding issue tracking, please visit Github,
+   https://github.com/MiCode/Notes/issues?sort=created&direction=desc&state=open
+
+3. Regarding feature request and general discussion, please visit Micode forum,
+   http://micode.net/forum.php?mod=forumdisplay&fid=38

doc/data/Contact.java

@@ -86,4 +86,4 @@ public class Contact {
         }
     }
 }
-/* 这个类主要用于根据电话号码查询联系人名称。在查询过程中，会将查询到的联系人名称缓存在一个HashMap中，以便于下次查询时直接从缓存中获取。*/
+/*这个类主要用于根据电话号码查询联系人名称。在查询过程中，会将查询到的联系人名称缓存在一个HashMap中，以便于下次查询时直接从缓存中获取。*/

doc/data/Notes.java

@@ -17,49 +17,50 @@
 package net.micode.notes.data;
 
 import android.net.Uri;
-// 定义“笔记”类
 public class Notes {
-    
     public static final String AUTHORITY = "micode_notes";
     public static final String TAG = "Notes";
-    // 定义笔记类型常量
     public static final int TYPE_NOTE     = 0;
     public static final int TYPE_FOLDER   = 1;
     public static final int TYPE_SYSTEM   = 2;
 
     /**
-     * 以下ID为系统文件夹的标识符
+     * Following IDs are system folders' identifiers
-     * {@link Notes#ID_ROOT_FOLDER } 默认文件夹
+     * {@link Notes#ID_ROOT_FOLDER } is default folder
-     * {@link Notes#ID_TEMPARAY_FOLDER } 用于没有文件夹的笔记
+     * {@link Notes#ID_TEMPARAY_FOLDER } is for notes belonging no folder
-     * {@link Notes#ID_CALL_RECORD_FOLDER} 存储通话记录
+     * {@link Notes#ID_CALL_RECORD_FOLDER} is to store call records
      */
     public static final int ID_ROOT_FOLDER = 0;
     public static final int ID_TEMPARAY_FOLDER = -1;
     public static final int ID_CALL_RECORD_FOLDER = -2;
     public static final int ID_TRASH_FOLER = -3;
-    // 定义意图(extra)的键
+
     public static final String INTENT_EXTRA_ALERT_DATE = "net.micode.notes.alert_date";
     public static final String INTENT_EXTRA_BACKGROUND_ID = "net.micode.notes.background_color_id";
     public static final String INTENT_EXTRA_WIDGET_ID = "net.micode.notes.widget_id";
     public static final String INTENT_EXTRA_WIDGET_TYPE = "net.micode.notes.widget_type";
     public static final String INTENT_EXTRA_FOLDER_ID = "net.micode.notes.folder_id";
     public static final String INTENT_EXTRA_CALL_DATE = "net.micode.notes.call_date";
-    // 定义小部件的类型常量
+
     public static final int TYPE_WIDGET_INVALIDE      = -1;
     public static final int TYPE_WIDGET_2X            = 0;
     public static final int TYPE_WIDGET_4X            = 1;
-    // 定义数据常量
+
     public static class DataConstants {
         public static final String NOTE = TextNote.CONTENT_ITEM_TYPE;
         public static final String CALL_NOTE = CallNote.CONTENT_ITEM_TYPE;
     }
 
-    // 定义笔记的uri，可用于查询所有笔记和文件夹
+    /**
+     * Uri to query all notes and folders
+     */
     public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" + AUTHORITY + "/note");
 
-    // 定义数据的uri
+    /**
+     * Uri to query data
+     */
     public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data");
-    // 定义笔记和文件夹的列名
+
     public interface NoteColumns {
         /**
          * The unique ID for a row
@@ -165,7 +166,7 @@ public class Notes {
          */
         public static final String VERSION = "version";
     }
-    // 定义数据表的列名
+
     public interface DataColumns {
         /**
          * The unique ID for a row
@@ -239,7 +240,7 @@ public class Notes {
          */
         public static final String DATA5 = "data5";
     }
-    // 定义文本笔记类
+
     public static final class TextNote implements DataColumns {
         /**
          * Mode to indicate the text in check list mode or not
@@ -255,7 +256,7 @@ public class Notes {
 
         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/text_note");
     }
-    // 定义通话笔记类
+
     public static final class CallNote implements DataColumns {
         /**
          * Call date for this record

doc/data/NotesDatabaseHelper.java

@@ -26,22 +26,22 @@ import net.micode.notes.data.Notes.DataColumns;
 import net.micode.notes.data.Notes.DataConstants;
 import net.micode.notes.data.Notes.NoteColumns;
 
-// 定义一个名为NotesDatabaseHelper的公共类，继承自SQLiteOpenHelper
+
 public class NotesDatabaseHelper extends SQLiteOpenHelper {
-    // 定义数据库名和版本号
     private static final String DB_NAME = "note.db";
+
     private static final int DB_VERSION = 4;
-    // 定义表名称常量
+
     public interface TABLE {
         public static final String NOTE = "note";
 
         public static final String DATA = "data";
     }
-    // 定义日志标签
+
     private static final String TAG = "NotesDatabaseHelper";
-    // 定义一个NotesDatabaseHelper类型的私有静态实例变量
+
     private static NotesDatabaseHelper mInstance;
-    // 定义创建note表的SQL语句
+
     private static final String CREATE_NOTE_TABLE_SQL =
         "CREATE TABLE " + TABLE.NOTE + "(" +
             NoteColumns.ID + " INTEGER PRIMARY KEY," +
@@ -85,7 +85,6 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
     /**
      * Increase folder's note count when move note to the folder
      */
-
     private static final String NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER =
         "CREATE TRIGGER increase_folder_count_on_update "+
         " AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE +
@@ -98,7 +97,6 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
     /**
      * Decrease folder's note count when move note from folder
      */
-
     private static final String NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER =
         "CREATE TRIGGER decrease_folder_count_on_update " +
         " AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE +
@@ -112,7 +110,6 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
     /**
      * Increase folder's note count when insert new note to the folder
      */
-  
     private static final String NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER =
         "CREATE TRIGGER increase_folder_count_on_insert " +
         " AFTER INSERT ON " + TABLE.NOTE +
@@ -138,7 +135,6 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
     /**
      * Update note's content when insert data with type {@link DataConstants#NOTE}
      */
-    // 定义更新笔记内容的触发器（插入类型为NOTE的数据时）
     private static final String DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER =
         "CREATE TRIGGER update_note_content_on_insert " +
         " AFTER INSERT ON " + TABLE.DATA +
@@ -152,7 +148,6 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
     /**
      * Update note's content when data with {@link DataConstants#NOTE} type has changed
      */
-    // 定义更新笔记内容的触发器（数据类型为NOTE时发生变化）
     private static final String DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER =
         "CREATE TRIGGER update_note_content_on_update " +
         " AFTER UPDATE ON " + TABLE.DATA +

doc/data/NotesProvider.java

@@ -16,6 +16,7 @@
 
 package net.micode.notes.data;
 
+
 import android.app.SearchManager;
 import android.content.ContentProvider;
 import android.content.ContentUris;
@@ -33,21 +34,21 @@ import net.micode.notes.data.Notes.DataColumns;
 import net.micode.notes.data.Notes.NoteColumns;
 import net.micode.notes.data.NotesDatabaseHelper.TABLE;
 
+
 public class NotesProvider extends ContentProvider {
-    // 声明 UriMatcher，用于匹配 Uri 和对应的操作
     private static final UriMatcher mMatcher;
 
     private NotesDatabaseHelper mHelper;
 
     private static final String TAG = "NotesProvider";
-    // 声明 UriMatcher，用于匹配 Uri 和对应的操作
-    private static final int URI_NOTE = 1;
-    private static final int URI_NOTE_ITEM = 2;
-    private static final int URI_DATA = 3;
-    private static final int URI_DATA_ITEM = 4;
 
-    private static final int URI_SEARCH = 5;
+    private static final int URI_NOTE            = 1;
-    private static final int URI_SEARCH_SUGGEST = 6;
+    private static final int URI_NOTE_ITEM       = 2;
+    private static final int URI_DATA            = 3;
+    private static final int URI_DATA_ITEM       = 4;
+
+    private static final int URI_SEARCH          = 5;
+    private static final int URI_SEARCH_SUGGEST  = 6;
 
     static {
         mMatcher = new UriMatcher(UriMatcher.NO_MATCH);
@@ -61,33 +62,29 @@ public class NotesProvider extends ContentProvider {
     }
 
     /**
-     * x'0A' represents the '\n' character in sqlite. For title and content in the
+     * x'0A' represents the '\n' character in sqlite. For title and content in the search result,
-     * search result,
      * we will trim '\n' and white space in order to show more information.
      */
-    // 声明 UriMatcher，用于匹配 Uri 和对应的操作
     private static final String NOTES_SEARCH_PROJECTION = NoteColumns.ID + ","
-            + NoteColumns.ID + " AS " + SearchManager.SUGGEST_COLUMN_INTENT_EXTRA_DATA + ","
+        + NoteColumns.ID + " AS " + SearchManager.SUGGEST_COLUMN_INTENT_EXTRA_DATA + ","
-            + "TRIM(REPLACE(" + NoteColumns.SNIPPET + ", x'0A','')) AS " + SearchManager.SUGGEST_COLUMN_TEXT_1 + ","
+        + "TRIM(REPLACE(" + NoteColumns.SNIPPET + ", x'0A','')) AS " + SearchManager.SUGGEST_COLUMN_TEXT_1 + ","
-            + "TRIM(REPLACE(" + NoteColumns.SNIPPET + ", x'0A','')) AS " + SearchManager.SUGGEST_COLUMN_TEXT_2 + ","
+        + "TRIM(REPLACE(" + NoteColumns.SNIPPET + ", x'0A','')) AS " + SearchManager.SUGGEST_COLUMN_TEXT_2 + ","
-            + R.drawable.search_result + " AS " + SearchManager.SUGGEST_COLUMN_ICON_1 + ","
+        + R.drawable.search_result + " AS " + SearchManager.SUGGEST_COLUMN_ICON_1 + ","
-            + "'" + Intent.ACTION_VIEW + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_ACTION + ","
+        + "'" + Intent.ACTION_VIEW + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_ACTION + ","
-            + "'" + Notes.TextNote.CONTENT_TYPE + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_DATA;
+        + "'" + Notes.TextNote.CONTENT_TYPE + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_DATA;
-    // 声明常量，表示查询搜索建议的 SQL 语句
+
     private static String NOTES_SNIPPET_SEARCH_QUERY = "SELECT " + NOTES_SEARCH_PROJECTION
-            + " FROM " + TABLE.NOTE
+        + " FROM " + TABLE.NOTE
-            + " WHERE " + NoteColumns.SNIPPET + " LIKE ?"
+        + " WHERE " + NoteColumns.SNIPPET + " LIKE ?"
-            + " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER
+        + " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER
-            + " AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE;
+        + " AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE;
 
-    // 初始化 NotesProvider
     @Override
     public boolean onCreate() {
         mHelper = NotesDatabaseHelper.getInstance(getContext());
         return true;
     }
 
-    // 查询数据
     @Override
     public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
             String sortOrder) {
@@ -230,7 +227,6 @@ public class NotesProvider extends ContentProvider {
         return count;
     }
 
-    // 实现了更新数据的功能
     @Override
     public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
         int count = 0;
@@ -275,16 +271,6 @@ public class NotesProvider extends ContentProvider {
         return (!TextUtils.isEmpty(selection) ? " AND (" + selection + ')' : "");
     }
 
-    /**
-     * 
-     * 增加Note的版本号，每次更新Note时，都需要对其版本号加1。
-     * 
-     * @param id            需要更新版本号的Note的ID，如果为-1，则更新所有Note的版本号。
-     * 
-     * @param selection     查询条件。
-     * 
-     * @param selectionArgs 查询条件中的参数。
-     **/
     private void increaseNoteVersion(long id, String selection, String[] selectionArgs) {
         StringBuilder sql = new StringBuilder(120);
         sql.append("UPDATE ");

doc/gtask/exception/ActionFailureException.java

@@ -0,0 +1,33 @@
+/*
+ * 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.gtask.exception;
+
+public class ActionFailureException extends RuntimeException {
+    private static final long serialVersionUID = 4425249765923293627L;
+
+    public ActionFailureException() {
+        super();
+    }
+
+    public ActionFailureException(String paramString) {
+        super(paramString);
+    }
+
+    public ActionFailureException(String paramString, Throwable paramThrowable) {
+        super(paramString, paramThrowable);
+    }
+}

doc/gtask/exception/NetworkFailureException.java

@@ -19,17 +19,14 @@ package net.micode.notes.gtask.exception;
 public class NetworkFailureException extends Exception {
     private static final long serialVersionUID = 2107610287180234136L;
 
-    // 无参构造函数
     public NetworkFailureException() {
         super();
     }
 
-    // 构造函数，接受一个字符串消息作为参数
     public NetworkFailureException(String paramString) {
         super(paramString);
     }
 
-    // 构造函数，接受一个字符串消息和一个可抛出对象作为参数
     public NetworkFailureException(String paramString, Throwable paramThrowable) {
         super(paramString, paramThrowable);
     }

doc/gtask/remote/GTaskASyncTask.java

@@ -0,0 +1,123 @@
+
+/*
+ * 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.gtask.remote;
+
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.app.PendingIntent;
+import android.content.Context;
+import android.content.Intent;
+import android.os.AsyncTask;
+
+import net.micode.notes.R;
+import net.micode.notes.ui.NotesListActivity;
+import net.micode.notes.ui.NotesPreferenceActivity;
+
+
+public class GTaskASyncTask extends AsyncTask<Void, String, Integer> {
+
+    private static int GTASK_SYNC_NOTIFICATION_ID = 5234235;
+
+    public interface OnCompleteListener {
+        void onComplete();
+    }
+
+    private Context mContext;
+
+    private NotificationManager mNotifiManager;
+
+    private GTaskManager mTaskManager;
+
+    private OnCompleteListener mOnCompleteListener;
+
+    public GTaskASyncTask(Context context, OnCompleteListener listener) {
+        mContext = context;
+        mOnCompleteListener = listener;
+        mNotifiManager = (NotificationManager) mContext
+                .getSystemService(Context.NOTIFICATION_SERVICE);
+        mTaskManager = GTaskManager.getInstance();
+    }
+
+    public void cancelSync() {
+        mTaskManager.cancelSync();
+    }
+
+    public void publishProgess(String message) {
+        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;
+        PendingIntent pendingIntent;
+        if (tickerId != R.string.ticker_success) {
+            pendingIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext,
+                    NotesPreferenceActivity.class), 0);
+
+        } else {
+            pendingIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext,
+                    NotesListActivity.class), 0);
+        }
+        /*notification.setLatestEventInfo(mContext, mContext.getString(R.string.app_name), content,
+                pendingIntent);*/
+        mNotifiManager.notify(GTASK_SYNC_NOTIFICATION_ID, notification);
+    }
+
+    @Override
+    protected Integer doInBackground(Void... unused) {
+        publishProgess(mContext.getString(R.string.sync_progress_login, NotesPreferenceActivity
+                .getSyncAccountName(mContext)));
+        return mTaskManager.sync(mContext, this);
+    }
+
+    @Override
+    protected void onProgressUpdate(String... progress) {
+        showNotification(R.string.ticker_syncing, progress[0]);
+        if (mContext instanceof GTaskSyncService) {
+            ((GTaskSyncService) mContext).sendBroadcast(progress[0]);
+        }
+    }
+
+    @Override
+    protected void onPostExecute(Integer result) {
+        if (result == GTaskManager.STATE_SUCCESS) {
+            showNotification(R.string.ticker_success, mContext.getString(
+                    R.string.success_sync_account, mTaskManager.getSyncAccount()));
+            NotesPreferenceActivity.setLastSyncTime(mContext, System.currentTimeMillis());
+        } else if (result == GTaskManager.STATE_NETWORK_ERROR) {
+            showNotification(R.string.ticker_fail, mContext.getString(R.string.error_sync_network));
+        } else if (result == GTaskManager.STATE_INTERNAL_ERROR) {
+            showNotification(R.string.ticker_fail, mContext.getString(R.string.error_sync_internal));
+        } else if (result == GTaskManager.STATE_SYNC_CANCELLED) {
+            showNotification(R.string.ticker_cancel, mContext
+                    .getString(R.string.error_sync_cancelled));
+        }
+        if (mOnCompleteListener != null) {
+            new Thread(new Runnable() {
+
+                public void run() {
+                    mOnCompleteListener.onComplete();
+                }
+            }).start();
+        }
+    }
+}

doc/gtask/remote/GTaskClient.java

@@ -0,0 +1,585 @@
+/*
+ * 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.gtask.remote;
+
+import android.accounts.Account;
+import android.accounts.AccountManager;
+import android.accounts.AccountManagerFuture;
+import android.app.Activity;
+import android.os.Bundle;
+import android.text.TextUtils;
+import android.util.Log;
+
+import net.micode.notes.gtask.data.Node;
+import net.micode.notes.gtask.data.Task;
+import net.micode.notes.gtask.data.TaskList;
+import net.micode.notes.gtask.exception.ActionFailureException;
+import net.micode.notes.gtask.exception.NetworkFailureException;
+import net.micode.notes.tool.GTaskStringUtils;
+import net.micode.notes.ui.NotesPreferenceActivity;
+
+import org.apache.http.HttpEntity;
+import org.apache.http.HttpResponse;
+import org.apache.http.client.ClientProtocolException;
+import org.apache.http.client.entity.UrlEncodedFormEntity;
+import org.apache.http.client.methods.HttpGet;
+import org.apache.http.client.methods.HttpPost;
+import org.apache.http.cookie.Cookie;
+import org.apache.http.impl.client.BasicCookieStore;
+import org.apache.http.impl.client.DefaultHttpClient;
+import org.apache.http.message.BasicNameValuePair;
+import org.apache.http.params.BasicHttpParams;
+import org.apache.http.params.HttpConnectionParams;
+import org.apache.http.params.HttpParams;
+import org.apache.http.params.HttpProtocolParams;
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.zip.GZIPInputStream;
+import java.util.zip.Inflater;
+import java.util.zip.InflaterInputStream;
+
+
+public class GTaskClient {
+    private static final String TAG = GTaskClient.class.getSimpleName();
+
+    private static final String GTASK_URL = "https://mail.google.com/tasks/";
+
+    private static final String GTASK_GET_URL = "https://mail.google.com/tasks/ig";
+
+    private static final String GTASK_POST_URL = "https://mail.google.com/tasks/r/ig";
+
+    private static GTaskClient mInstance = null;
+
+    private DefaultHttpClient mHttpClient;
+
+    private String mGetUrl;
+
+    private String mPostUrl;
+
+    private long mClientVersion;
+
+    private boolean mLoggedin;
+
+    private long mLastLoginTime;
+
+    private int mActionId;
+
+    private Account mAccount;
+
+    private JSONArray mUpdateArray;
+
+    private GTaskClient() {
+        mHttpClient = null;
+        mGetUrl = GTASK_GET_URL;
+        mPostUrl = GTASK_POST_URL;
+        mClientVersion = -1;
+        mLoggedin = false;
+        mLastLoginTime = 0;
+        mActionId = 1;
+        mAccount = null;
+        mUpdateArray = null;
+    }
+
+    public static synchronized GTaskClient getInstance() {
+        if (mInstance == null) {
+            mInstance = new GTaskClient();
+        }
+        return mInstance;
+    }
+
+    public boolean login(Activity activity) {
+        // 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;
+        }
+
+        // need to re-login after account switch
+        if (mLoggedin
+                && !TextUtils.equals(getSyncAccount().name, NotesPreferenceActivity
+                        .getSyncAccountName(activity))) {
+            mLoggedin = false;
+        }
+
+        if (mLoggedin) {
+            Log.d(TAG, "already logged in");
+            return true;
+        }
+
+        mLastLoginTime = System.currentTimeMillis();
+        String authToken = loginGoogleAccount(activity, false);
+        if (authToken == null) {
+            Log.e(TAG, "login google account failed");
+            return false;
+        }
+
+        // login with custom domain if necessary
+        if (!(mAccount.name.toLowerCase().endsWith("gmail.com") || mAccount.name.toLowerCase()
+                .endsWith("googlemail.com"))) {
+            StringBuilder url = new StringBuilder(GTASK_URL).append("a/");
+            int index = mAccount.name.indexOf('@') + 1;
+            String suffix = mAccount.name.substring(index);
+            url.append(suffix + "/");
+            mGetUrl = url.toString() + "ig";
+            mPostUrl = url.toString() + "r/ig";
+
+            if (tryToLoginGtask(activity, authToken)) {
+                mLoggedin = true;
+            }
+        }
+
+        // try to login with google official url
+        if (!mLoggedin) {
+            mGetUrl = GTASK_GET_URL;
+            mPostUrl = GTASK_POST_URL;
+            if (!tryToLoginGtask(activity, authToken)) {
+                return false;
+            }
+        }
+
+        mLoggedin = true;
+        return true;
+    }
+
+    private String loginGoogleAccount(Activity activity, boolean invalidateToken) {
+        String authToken;
+        AccountManager accountManager = AccountManager.get(activity);
+        Account[] accounts = accountManager.getAccountsByType("com.google");
+
+        if (accounts.length == 0) {
+            Log.e(TAG, "there is no available google account");
+            return null;
+        }
+
+        String accountName = NotesPreferenceActivity.getSyncAccountName(activity);
+        Account account = null;
+        for (Account a : accounts) {
+            if (a.name.equals(accountName)) {
+                account = a;
+                break;
+            }
+        }
+        if (account != null) {
+            mAccount = account;
+        } else {
+            Log.e(TAG, "unable to get an account with the same name in the settings");
+            return null;
+        }
+
+        // get the token now
+        AccountManagerFuture<Bundle> accountManagerFuture = accountManager.getAuthToken(account,
+                "goanna_mobile", null, activity, null, null);
+        try {
+            Bundle authTokenBundle = accountManagerFuture.getResult();
+            authToken = authTokenBundle.getString(AccountManager.KEY_AUTHTOKEN);
+            if (invalidateToken) {
+                accountManager.invalidateAuthToken("com.google", authToken);
+                loginGoogleAccount(activity, false);
+            }
+        } catch (Exception e) {
+            Log.e(TAG, "get auth token failed");
+            authToken = null;
+        }
+
+        return authToken;
+    }
+
+    private boolean tryToLoginGtask(Activity activity, String authToken) {
+        if (!loginGtask(authToken)) {
+            // maybe the auth token is out of date, now let's invalidate the
+            // token and try again
+            authToken = loginGoogleAccount(activity, true);
+            if (authToken == null) {
+                Log.e(TAG, "login google account failed");
+                return false;
+            }
+
+            if (!loginGtask(authToken)) {
+                Log.e(TAG, "login gtask failed");
+                return false;
+            }
+        }
+        return true;
+    }
+
+    private boolean loginGtask(String authToken) {
+        int timeoutConnection = 10000;
+        int timeoutSocket = 15000;
+        HttpParams httpParameters = new BasicHttpParams();
+        HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection);
+        HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);
+        mHttpClient = new DefaultHttpClient(httpParameters);
+        BasicCookieStore localBasicCookieStore = new BasicCookieStore();
+        mHttpClient.setCookieStore(localBasicCookieStore);
+        HttpProtocolParams.setUseExpectContinue(mHttpClient.getParams(), false);
+
+        // login gtask
+        try {
+            String loginUrl = mGetUrl + "?auth=" + authToken;
+            HttpGet httpGet = new HttpGet(loginUrl);
+            HttpResponse response = null;
+            response = mHttpClient.execute(httpGet);
+
+            // get the cookie now
+            List<Cookie> cookies = mHttpClient.getCookieStore().getCookies();
+            boolean hasAuthCookie = false;
+            for (Cookie cookie : cookies) {
+                if (cookie.getName().contains("GTL")) {
+                    hasAuthCookie = true;
+                }
+            }
+            if (!hasAuthCookie) {
+                Log.w(TAG, "it seems that there is no auth cookie");
+            }
+
+            // get the client version
+            String resString = getResponseContent(response.getEntity());
+            String jsBegin = "_setup(";
+            String jsEnd = ")}</script>";
+            int begin = resString.indexOf(jsBegin);
+            int end = resString.lastIndexOf(jsEnd);
+            String jsString = null;
+            if (begin != -1 && end != -1 && begin < end) {
+                jsString = resString.substring(begin + jsBegin.length(), end);
+            }
+            JSONObject js = new JSONObject(jsString);
+            mClientVersion = js.getLong("v");
+        } catch (JSONException e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+            return false;
+        } catch (Exception e) {
+            // simply catch all exceptions
+            Log.e(TAG, "httpget gtask_url failed");
+            return false;
+        }
+
+        return true;
+    }
+
+    private int getActionId() {
+        return mActionId++;
+    }
+
+    private HttpPost createHttpPost() {
+        HttpPost httpPost = new HttpPost(mPostUrl);
+        httpPost.setHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");
+        httpPost.setHeader("AT", "1");
+        return httpPost;
+    }
+
+    private String getResponseContent(HttpEntity entity) throws IOException {
+        String contentEncoding = null;
+        if (entity.getContentEncoding() != null) {
+            contentEncoding = entity.getContentEncoding().getValue();
+            Log.d(TAG, "encoding: " + contentEncoding);
+        }
+
+        InputStream input = entity.getContent();
+        if (contentEncoding != null && contentEncoding.equalsIgnoreCase("gzip")) {
+            input = new GZIPInputStream(entity.getContent());
+        } else if (contentEncoding != null && contentEncoding.equalsIgnoreCase("deflate")) {
+            Inflater inflater = new Inflater(true);
+            input = new InflaterInputStream(entity.getContent(), inflater);
+        }
+
+        try {
+            InputStreamReader isr = new InputStreamReader(input);
+            BufferedReader br = new BufferedReader(isr);
+            StringBuilder sb = new StringBuilder();
+
+            while (true) {
+                String buff = br.readLine();
+                if (buff == null) {
+                    return sb.toString();
+                }
+                sb = sb.append(buff);
+            }
+        } finally {
+            input.close();
+        }
+    }
+
+    private JSONObject postRequest(JSONObject js) throws NetworkFailureException {
+        if (!mLoggedin) {
+            Log.e(TAG, "please login first");
+            throw new ActionFailureException("not logged in");
+        }
+
+        HttpPost httpPost = createHttpPost();
+        try {
+            LinkedList<BasicNameValuePair> list = new LinkedList<BasicNameValuePair>();
+            list.add(new BasicNameValuePair("r", js.toString()));
+            UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list, "UTF-8");
+            httpPost.setEntity(entity);
+
+            // execute the post
+            HttpResponse response = mHttpClient.execute(httpPost);
+            String jsString = getResponseContent(response.getEntity());
+            return new JSONObject(jsString);
+
+        } catch (ClientProtocolException e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+            throw new NetworkFailureException("postRequest failed");
+        } catch (IOException e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+            throw new NetworkFailureException("postRequest failed");
+        } catch (JSONException e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+            throw new ActionFailureException("unable to convert response content to jsonobject");
+        } catch (Exception e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+            throw new ActionFailureException("error occurs when posting request");
+        }
+    }
+
+    public void createTask(Task task) throws NetworkFailureException {
+        commitUpdate();
+        try {
+            JSONObject jsPost = new JSONObject();
+            JSONArray actionList = new JSONArray();
+
+            // action_list
+            actionList.put(task.getCreateAction(getActionId()));
+            jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList);
+
+            // client_version
+            jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion);
+
+            // post
+            JSONObject jsResponse = postRequest(jsPost);
+            JSONObject jsResult = (JSONObject) jsResponse.getJSONArray(
+                    GTaskStringUtils.GTASK_JSON_RESULTS).get(0);
+            task.setGid(jsResult.getString(GTaskStringUtils.GTASK_JSON_NEW_ID));
+
+        } catch (JSONException e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+            throw new ActionFailureException("create task: handing jsonobject failed");
+        }
+    }
+
+    public void createTaskList(TaskList tasklist) throws NetworkFailureException {
+        commitUpdate();
+        try {
+            JSONObject jsPost = new JSONObject();
+            JSONArray actionList = new JSONArray();
+
+            // action_list
+            actionList.put(tasklist.getCreateAction(getActionId()));
+            jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList);
+
+            // client version
+            jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion);
+
+            // post
+            JSONObject jsResponse = postRequest(jsPost);
+            JSONObject jsResult = (JSONObject) jsResponse.getJSONArray(
+                    GTaskStringUtils.GTASK_JSON_RESULTS).get(0);
+            tasklist.setGid(jsResult.getString(GTaskStringUtils.GTASK_JSON_NEW_ID));
+
+        } catch (JSONException e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+            throw new ActionFailureException("create tasklist: handing jsonobject failed");
+        }
+    }
+
+    public void commitUpdate() throws NetworkFailureException {
+        if (mUpdateArray != null) {
+            try {
+                JSONObject jsPost = new JSONObject();
+
+                // action_list
+                jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, mUpdateArray);
+
+                // client_version
+                jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion);
+
+                postRequest(jsPost);
+                mUpdateArray = null;
+            } catch (JSONException e) {
+                Log.e(TAG, e.toString());
+                e.printStackTrace();
+                throw new ActionFailureException("commit update: handing jsonobject failed");
+            }
+        }
+    }
+
+    public void addUpdateNode(Node node) throws NetworkFailureException {
+        if (node != null) {
+            // too many update items may result in an error
+            // set max to 10 items
+            if (mUpdateArray != null && mUpdateArray.length() > 10) {
+                commitUpdate();
+            }
+
+            if (mUpdateArray == null)
+                mUpdateArray = new JSONArray();
+            mUpdateArray.put(node.getUpdateAction(getActionId()));
+        }
+    }
+
+    public void moveTask(Task task, TaskList preParent, TaskList curParent)
+            throws NetworkFailureException {
+        commitUpdate();
+        try {
+            JSONObject jsPost = new JSONObject();
+            JSONArray actionList = new JSONArray();
+            JSONObject action = new JSONObject();
+
+            // action_list
+            action.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
+                    GTaskStringUtils.GTASK_JSON_ACTION_TYPE_MOVE);
+            action.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, getActionId());
+            action.put(GTaskStringUtils.GTASK_JSON_ID, task.getGid());
+            if (preParent == curParent && task.getPriorSibling() != null) {
+                // put prioring_sibing_id only if moving within the tasklist and
+                // it is not the first one
+                action.put(GTaskStringUtils.GTASK_JSON_PRIOR_SIBLING_ID, task.getPriorSibling());
+            }
+            action.put(GTaskStringUtils.GTASK_JSON_SOURCE_LIST, preParent.getGid());
+            action.put(GTaskStringUtils.GTASK_JSON_DEST_PARENT, curParent.getGid());
+            if (preParent != curParent) {
+                // put the dest_list only if moving between tasklists
+                action.put(GTaskStringUtils.GTASK_JSON_DEST_LIST, curParent.getGid());
+            }
+            actionList.put(action);
+            jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList);
+
+            // client_version
+            jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion);
+
+            postRequest(jsPost);
+
+        } catch (JSONException e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+            throw new ActionFailureException("move task: handing jsonobject failed");
+        }
+    }
+
+    public void deleteNode(Node node) throws NetworkFailureException {
+        commitUpdate();
+        try {
+            JSONObject jsPost = new JSONObject();
+            JSONArray actionList = new JSONArray();
+
+            // action_list
+            node.setDeleted(true);
+            actionList.put(node.getUpdateAction(getActionId()));
+            jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList);
+
+            // client_version
+            jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion);
+
+            postRequest(jsPost);
+            mUpdateArray = null;
+        } catch (JSONException e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+            throw new ActionFailureException("delete node: handing jsonobject failed");
+        }
+    }
+
+    public JSONArray getTaskLists() throws NetworkFailureException {
+        if (!mLoggedin) {
+            Log.e(TAG, "please login first");
+            throw new ActionFailureException("not logged in");
+        }
+
+        try {
+            HttpGet httpGet = new HttpGet(mGetUrl);
+            HttpResponse response = null;
+            response = mHttpClient.execute(httpGet);
+
+            // get the task list
+            String resString = getResponseContent(response.getEntity());
+            String jsBegin = "_setup(";
+            String jsEnd = ")}</script>";
+            int begin = resString.indexOf(jsBegin);
+            int end = resString.lastIndexOf(jsEnd);
+            String jsString = null;
+            if (begin != -1 && end != -1 && begin < end) {
+                jsString = resString.substring(begin + jsBegin.length(), end);
+            }
+            JSONObject js = new JSONObject(jsString);
+            return js.getJSONObject("t").getJSONArray(GTaskStringUtils.GTASK_JSON_LISTS);
+        } catch (ClientProtocolException e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+            throw new NetworkFailureException("gettasklists: httpget failed");
+        } catch (IOException e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+            throw new NetworkFailureException("gettasklists: httpget failed");
+        } catch (JSONException e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+            throw new ActionFailureException("get task lists: handing jasonobject failed");
+        }
+    }
+
+    public JSONArray getTaskList(String listGid) throws NetworkFailureException {
+        commitUpdate();
+        try {
+            JSONObject jsPost = new JSONObject();
+            JSONArray actionList = new JSONArray();
+            JSONObject action = new JSONObject();
+
+            // action_list
+            action.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
+                    GTaskStringUtils.GTASK_JSON_ACTION_TYPE_GETALL);
+            action.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, getActionId());
+            action.put(GTaskStringUtils.GTASK_JSON_LIST_ID, listGid);
+            action.put(GTaskStringUtils.GTASK_JSON_GET_DELETED, false);
+            actionList.put(action);
+            jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList);
+
+            // client_version
+            jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion);
+
+            JSONObject jsResponse = postRequest(jsPost);
+            return jsResponse.getJSONArray(GTaskStringUtils.GTASK_JSON_TASKS);
+        } catch (JSONException e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+            throw new ActionFailureException("get task list: handing jsonobject failed");
+        }
+    }
+
+    public Account getSyncAccount() {
+        return mAccount;
+    }
+
+    public void resetUpdateArray() {
+        mUpdateArray = null;
+    }
+}

doc/gtask/remote/GTaskManager.java

@@ -0,0 +1,800 @@
+/*
+ * 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.gtask.remote;
+
+import android.app.Activity;
+import android.content.ContentResolver;
+import android.content.ContentUris;
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.Cursor;
+import android.util.Log;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.gtask.data.MetaData;
+import net.micode.notes.gtask.data.Node;
+import net.micode.notes.gtask.data.SqlNote;
+import net.micode.notes.gtask.data.Task;
+import net.micode.notes.gtask.data.TaskList;
+import net.micode.notes.gtask.exception.ActionFailureException;
+import net.micode.notes.gtask.exception.NetworkFailureException;
+import net.micode.notes.tool.DataUtils;
+import net.micode.notes.tool.GTaskStringUtils;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Map;
+
+
+public class GTaskManager {
+    private static final String TAG = GTaskManager.class.getSimpleName();
+
+    public static final int STATE_SUCCESS = 0;
+
+    public static final int STATE_NETWORK_ERROR = 1;
+
+    public static final int STATE_INTERNAL_ERROR = 2;
+
+    public static final int STATE_SYNC_IN_PROGRESS = 3;
+
+    public static final int STATE_SYNC_CANCELLED = 4;
+
+    private static GTaskManager mInstance = null;
+
+    private Activity mActivity;
+
+    private Context mContext;
+
+    private ContentResolver mContentResolver;
+
+    private boolean mSyncing;
+
+    private boolean mCancelled;
+
+    private HashMap<String, TaskList> mGTaskListHashMap;
+
+    private HashMap<String, Node> mGTaskHashMap;
+
+    private HashMap<String, MetaData> mMetaHashMap;
+
+    private TaskList mMetaList;
+
+    private HashSet<Long> mLocalDeleteIdMap;
+
+    private HashMap<String, Long> mGidToNid;
+
+    private HashMap<Long, String> mNidToGid;
+
+    private GTaskManager() {
+        mSyncing = false;
+        mCancelled = false;
+        mGTaskListHashMap = new HashMap<String, TaskList>();
+        mGTaskHashMap = new HashMap<String, Node>();
+        mMetaHashMap = new HashMap<String, MetaData>();
+        mMetaList = null;
+        mLocalDeleteIdMap = new HashSet<Long>();
+        mGidToNid = new HashMap<String, Long>();
+        mNidToGid = new HashMap<Long, String>();
+    }
+
+    public static synchronized GTaskManager getInstance() {
+        if (mInstance == null) {
+            mInstance = new GTaskManager();
+        }
+        return mInstance;
+    }
+
+    public synchronized void setActivityContext(Activity activity) {
+        // used for getting authtoken
+        mActivity = activity;
+    }
+
+    public int sync(Context context, GTaskASyncTask asyncTask) {
+        if (mSyncing) {
+            Log.d(TAG, "Sync is in progress");
+            return STATE_SYNC_IN_PROGRESS;
+        }
+        mContext = context;
+        mContentResolver = mContext.getContentResolver();
+        mSyncing = true;
+        mCancelled = false;
+        mGTaskListHashMap.clear();
+        mGTaskHashMap.clear();
+        mMetaHashMap.clear();
+        mLocalDeleteIdMap.clear();
+        mGidToNid.clear();
+        mNidToGid.clear();
+
+        try {
+            GTaskClient client = GTaskClient.getInstance();
+            client.resetUpdateArray();
+
+            // login google task
+            if (!mCancelled) {
+                if (!client.login(mActivity)) {
+                    throw new NetworkFailureException("login google task failed");
+                }
+            }
+
+            // get the task list from google
+            asyncTask.publishProgess(mContext.getString(R.string.sync_progress_init_list));
+            initGTaskList();
+
+            // do content sync work
+            asyncTask.publishProgess(mContext.getString(R.string.sync_progress_syncing));
+            syncContent();
+        } catch (NetworkFailureException e) {
+            Log.e(TAG, e.toString());
+            return STATE_NETWORK_ERROR;
+        } catch (ActionFailureException e) {
+            Log.e(TAG, e.toString());
+            return STATE_INTERNAL_ERROR;
+        } catch (Exception e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+            return STATE_INTERNAL_ERROR;
+        } finally {
+            mGTaskListHashMap.clear();
+            mGTaskHashMap.clear();
+            mMetaHashMap.clear();
+            mLocalDeleteIdMap.clear();
+            mGidToNid.clear();
+            mNidToGid.clear();
+            mSyncing = false;
+        }
+
+        return mCancelled ? STATE_SYNC_CANCELLED : STATE_SUCCESS;
+    }
+
+    private void initGTaskList() throws NetworkFailureException {
+        if (mCancelled)
+            return;
+        GTaskClient client = GTaskClient.getInstance();
+        try {
+            JSONArray jsTaskLists = client.getTaskLists();
+
+            // init meta list first
+            mMetaList = null;
+            for (int i = 0; i < jsTaskLists.length(); i++) {
+                JSONObject object = jsTaskLists.getJSONObject(i);
+                String gid = object.getString(GTaskStringUtils.GTASK_JSON_ID);
+                String name = object.getString(GTaskStringUtils.GTASK_JSON_NAME);
+
+                if (name
+                        .equals(GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_META)) {
+                    mMetaList = new TaskList();
+                    mMetaList.setContentByRemoteJSON(object);
+
+                    // load meta data
+                    JSONArray jsMetas = client.getTaskList(gid);
+                    for (int j = 0; j < jsMetas.length(); j++) {
+                        object = (JSONObject) jsMetas.getJSONObject(j);
+                        MetaData metaData = new MetaData();
+                        metaData.setContentByRemoteJSON(object);
+                        if (metaData.isWorthSaving()) {
+                            mMetaList.addChildTask(metaData);
+                            if (metaData.getGid() != null) {
+                                mMetaHashMap.put(metaData.getRelatedGid(), metaData);
+                            }
+                        }
+                    }
+                }
+            }
+
+            // create meta list if not existed
+            if (mMetaList == null) {
+                mMetaList = new TaskList();
+                mMetaList.setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX
+                        + GTaskStringUtils.FOLDER_META);
+                GTaskClient.getInstance().createTaskList(mMetaList);
+            }
+
+            // init task list
+            for (int i = 0; i < jsTaskLists.length(); i++) {
+                JSONObject object = jsTaskLists.getJSONObject(i);
+                String gid = object.getString(GTaskStringUtils.GTASK_JSON_ID);
+                String name = object.getString(GTaskStringUtils.GTASK_JSON_NAME);
+
+                if (name.startsWith(GTaskStringUtils.MIUI_FOLDER_PREFFIX)
+                        && !name.equals(GTaskStringUtils.MIUI_FOLDER_PREFFIX
+                                + GTaskStringUtils.FOLDER_META)) {
+                    TaskList tasklist = new TaskList();
+                    tasklist.setContentByRemoteJSON(object);
+                    mGTaskListHashMap.put(gid, tasklist);
+                    mGTaskHashMap.put(gid, tasklist);
+
+                    // load tasks
+                    JSONArray jsTasks = client.getTaskList(gid);
+                    for (int j = 0; j < jsTasks.length(); j++) {
+                        object = (JSONObject) jsTasks.getJSONObject(j);
+                        gid = object.getString(GTaskStringUtils.GTASK_JSON_ID);
+                        Task task = new Task();
+                        task.setContentByRemoteJSON(object);
+                        if (task.isWorthSaving()) {
+                            task.setMetaInfo(mMetaHashMap.get(gid));
+                            tasklist.addChildTask(task);
+                            mGTaskHashMap.put(gid, task);
+                        }
+                    }
+                }
+            }
+        } catch (JSONException e) {
+            Log.e(TAG, e.toString());
+            e.printStackTrace();
+            throw new ActionFailureException("initGTaskList: handing JSONObject failed");
+        }
+    }
+
+    private void syncContent() throws NetworkFailureException {
+        int syncType;
+        Cursor c = null;
+        String gid;
+        Node node;
+
+        mLocalDeleteIdMap.clear();
+
+        if (mCancelled) {
+            return;
+        }
+
+        // for local deleted note
+        try {
+            c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE,
+                    "(type<>? AND parent_id=?)", new String[] {
+                            String.valueOf(Notes.TYPE_SYSTEM), String.valueOf(Notes.ID_TRASH_FOLER)
+                    }, null);
+            if (c != null) {
+                while (c.moveToNext()) {
+                    gid = c.getString(SqlNote.GTASK_ID_COLUMN);
+                    node = mGTaskHashMap.get(gid);
+                    if (node != null) {
+                        mGTaskHashMap.remove(gid);
+                        doContentSync(Node.SYNC_ACTION_DEL_REMOTE, node, c);
+                    }
+
+                    mLocalDeleteIdMap.add(c.getLong(SqlNote.ID_COLUMN));
+                }
+            } else {
+                Log.w(TAG, "failed to query trash folder");
+            }
+        } finally {
+            if (c != null) {
+                c.close();
+                c = null;
+            }
+        }
+
+        // sync folder first
+        syncFolder();
+
+        // for note existing in database
+        try {
+            c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE,
+                    "(type=? AND parent_id<>?)", new String[] {
+                            String.valueOf(Notes.TYPE_NOTE), String.valueOf(Notes.ID_TRASH_FOLER)
+                    }, NoteColumns.TYPE + " DESC");
+            if (c != null) {
+                while (c.moveToNext()) {
+                    gid = c.getString(SqlNote.GTASK_ID_COLUMN);
+                    node = mGTaskHashMap.get(gid);
+                    if (node != null) {
+                        mGTaskHashMap.remove(gid);
+                        mGidToNid.put(gid, c.getLong(SqlNote.ID_COLUMN));
+                        mNidToGid.put(c.getLong(SqlNote.ID_COLUMN), gid);
+                        syncType = node.getSyncAction(c);
+                    } else {
+                        if (c.getString(SqlNote.GTASK_ID_COLUMN).trim().length() == 0) {
+                            // local add
+                            syncType = Node.SYNC_ACTION_ADD_REMOTE;
+                        } else {
+                            // remote delete
+                            syncType = Node.SYNC_ACTION_DEL_LOCAL;
+                        }
+                    }
+                    doContentSync(syncType, node, c);
+                }
+            } else {
+                Log.w(TAG, "failed to query existing note in database");
+            }
+
+        } finally {
+            if (c != null) {
+                c.close();
+                c = null;
+            }
+        }
+
+        // go through remaining items
+        Iterator<Map.Entry<String, Node>> iter = mGTaskHashMap.entrySet().iterator();
+        while (iter.hasNext()) {
+            Map.Entry<String, Node> entry = iter.next();
+            node = entry.getValue();
+            doContentSync(Node.SYNC_ACTION_ADD_LOCAL, node, null);
+        }
+
+        // mCancelled can be set by another thread, so we neet to check one by
+        // one
+        // clear local delete table
+        if (!mCancelled) {
+            if (!DataUtils.batchDeleteNotes(mContentResolver, mLocalDeleteIdMap)) {
+                throw new ActionFailureException("failed to batch-delete local deleted notes");
+            }
+        }
+
+        // refresh local sync id
+        if (!mCancelled) {
+            GTaskClient.getInstance().commitUpdate();
+            refreshLocalSyncId();
+        }
+
+    }
+
+    private void syncFolder() throws NetworkFailureException {
+        Cursor c = null;
+        String gid;
+        Node node;
+        int syncType;
+
+        if (mCancelled) {
+            return;
+        }
+
+        // for root folder
+        try {
+            c = mContentResolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI,
+                    Notes.ID_ROOT_FOLDER), SqlNote.PROJECTION_NOTE, null, null, null);
+            if (c != null) {
+                c.moveToNext();
+                gid = c.getString(SqlNote.GTASK_ID_COLUMN);
+                node = mGTaskHashMap.get(gid);
+                if (node != null) {
+                    mGTaskHashMap.remove(gid);
+                    mGidToNid.put(gid, (long) Notes.ID_ROOT_FOLDER);
+                    mNidToGid.put((long) Notes.ID_ROOT_FOLDER, gid);
+                    // for system folder, only update remote name if necessary
+                    if (!node.getName().equals(
+                            GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_DEFAULT))
+                        doContentSync(Node.SYNC_ACTION_UPDATE_REMOTE, node, c);
+                } else {
+                    doContentSync(Node.SYNC_ACTION_ADD_REMOTE, node, c);
+                }
+            } else {
+                Log.w(TAG, "failed to query root folder");
+            }
+        } finally {
+            if (c != null) {
+                c.close();
+                c = null;
+            }
+        }
+
+        // for call-note folder
+        try {
+            c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE, "(_id=?)",
+                    new String[] {
+                        String.valueOf(Notes.ID_CALL_RECORD_FOLDER)
+                    }, null);
+            if (c != null) {
+                if (c.moveToNext()) {
+                    gid = c.getString(SqlNote.GTASK_ID_COLUMN);
+                    node = mGTaskHashMap.get(gid);
+                    if (node != null) {
+                        mGTaskHashMap.remove(gid);
+                        mGidToNid.put(gid, (long) Notes.ID_CALL_RECORD_FOLDER);
+                        mNidToGid.put((long) Notes.ID_CALL_RECORD_FOLDER, gid);
+                        // for system folder, only update remote name if
+                        // necessary
+                        if (!node.getName().equals(
+                                GTaskStringUtils.MIUI_FOLDER_PREFFIX
+                                        + GTaskStringUtils.FOLDER_CALL_NOTE))
+                            doContentSync(Node.SYNC_ACTION_UPDATE_REMOTE, node, c);
+                    } else {
+                        doContentSync(Node.SYNC_ACTION_ADD_REMOTE, node, c);
+                    }
+                }
+            } else {
+                Log.w(TAG, "failed to query call note folder");
+            }
+        } finally {
+            if (c != null) {
+                c.close();
+                c = null;
+            }
+        }
+
+        // for local existing folders
+        try {
+            c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE,
+                    "(type=? AND parent_id<>?)", new String[] {
+                            String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)
+                    }, NoteColumns.TYPE + " DESC");
+            if (c != null) {
+                while (c.moveToNext()) {
+                    gid = c.getString(SqlNote.GTASK_ID_COLUMN);
+                    node = mGTaskHashMap.get(gid);
+                    if (node != null) {
+                        mGTaskHashMap.remove(gid);
+                        mGidToNid.put(gid, c.getLong(SqlNote.ID_COLUMN));
+                        mNidToGid.put(c.getLong(SqlNote.ID_COLUMN), gid);
+                        syncType = node.getSyncAction(c);
+                    } else {
+                        if (c.getString(SqlNote.GTASK_ID_COLUMN).trim().length() == 0) {
+                            // local add
+                            syncType = Node.SYNC_ACTION_ADD_REMOTE;
+                        } else {
+                            // remote delete
+                            syncType = Node.SYNC_ACTION_DEL_LOCAL;
+                        }
+                    }
+                    doContentSync(syncType, node, c);
+                }
+            } else {
+                Log.w(TAG, "failed to query existing folder");
+            }
+        } finally {
+            if (c != null) {
+                c.close();
+                c = null;
+            }
+        }
+
+        // for remote add folders
+        Iterator<Map.Entry<String, TaskList>> iter = mGTaskListHashMap.entrySet().iterator();
+        while (iter.hasNext()) {
+            Map.Entry<String, TaskList> entry = iter.next();
+            gid = entry.getKey();
+            node = entry.getValue();
+            if (mGTaskHashMap.containsKey(gid)) {
+                mGTaskHashMap.remove(gid);
+                doContentSync(Node.SYNC_ACTION_ADD_LOCAL, node, null);
+            }
+        }
+
+        if (!mCancelled)
+            GTaskClient.getInstance().commitUpdate();
+    }
+
+    private void doContentSync(int syncType, Node node, Cursor c) throws NetworkFailureException {
+        if (mCancelled) {
+            return;
+        }
+
+        MetaData meta;
+        switch (syncType) {
+            case Node.SYNC_ACTION_ADD_LOCAL:
+                addLocalNode(node);
+                break;
+            case Node.SYNC_ACTION_ADD_REMOTE:
+                addRemoteNode(node, c);
+                break;
+            case Node.SYNC_ACTION_DEL_LOCAL:
+                meta = mMetaHashMap.get(c.getString(SqlNote.GTASK_ID_COLUMN));
+                if (meta != null) {
+                    GTaskClient.getInstance().deleteNode(meta);
+                }
+                mLocalDeleteIdMap.add(c.getLong(SqlNote.ID_COLUMN));
+                break;
+            case Node.SYNC_ACTION_DEL_REMOTE:
+                meta = mMetaHashMap.get(node.getGid());
+                if (meta != null) {
+                    GTaskClient.getInstance().deleteNode(meta);
+                }
+                GTaskClient.getInstance().deleteNode(node);
+                break;
+            case Node.SYNC_ACTION_UPDATE_LOCAL:
+                updateLocalNode(node, c);
+                break;
+            case Node.SYNC_ACTION_UPDATE_REMOTE:
+                updateRemoteNode(node, c);
+                break;
+            case Node.SYNC_ACTION_UPDATE_CONFLICT:
+                // merging both modifications maybe a good idea
+                // right now just use local update simply
+                updateRemoteNode(node, c);
+                break;
+            case Node.SYNC_ACTION_NONE:
+                break;
+            case Node.SYNC_ACTION_ERROR:
+            default:
+                throw new ActionFailureException("unkown sync action type");
+        }
+    }
+
+    private void addLocalNode(Node node) throws NetworkFailureException {
+        if (mCancelled) {
+            return;
+        }
+
+        SqlNote sqlNote;
+        if (node instanceof TaskList) {
+            if (node.getName().equals(
+                    GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_DEFAULT)) {
+                sqlNote = new SqlNote(mContext, Notes.ID_ROOT_FOLDER);
+            } else if (node.getName().equals(
+                    GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_CALL_NOTE)) {
+                sqlNote = new SqlNote(mContext, Notes.ID_CALL_RECORD_FOLDER);
+            } else {
+                sqlNote = new SqlNote(mContext);
+                sqlNote.setContent(node.getLocalJSONFromContent());
+                sqlNote.setParentId(Notes.ID_ROOT_FOLDER);
+            }
+        } else {
+            sqlNote = new SqlNote(mContext);
+            JSONObject js = node.getLocalJSONFromContent();
+            try {
+                if (js.has(GTaskStringUtils.META_HEAD_NOTE)) {
+                    JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
+                    if (note.has(NoteColumns.ID)) {
+                        long id = note.getLong(NoteColumns.ID);
+                        if (DataUtils.existInNoteDatabase(mContentResolver, id)) {
+                            // the id is not available, have to create a new one
+                            note.remove(NoteColumns.ID);
+                        }
+                    }
+                }
+
+                if (js.has(GTaskStringUtils.META_HEAD_DATA)) {
+                    JSONArray dataArray = js.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
+                    for (int i = 0; i < dataArray.length(); i++) {
+                        JSONObject data = dataArray.getJSONObject(i);
+                        if (data.has(DataColumns.ID)) {
+                            long dataId = data.getLong(DataColumns.ID);
+                            if (DataUtils.existInDataDatabase(mContentResolver, dataId)) {
+                                // the data id is not available, have to create
+                                // a new one
+                                data.remove(DataColumns.ID);
+                            }
+                        }
+                    }
+
+                }
+            } catch (JSONException e) {
+                Log.w(TAG, e.toString());
+                e.printStackTrace();
+            }
+            sqlNote.setContent(js);
+
+            Long parentId = mGidToNid.get(((Task) node).getParent().getGid());
+            if (parentId == null) {
+                Log.e(TAG, "cannot find task's parent id locally");
+                throw new ActionFailureException("cannot add local node");
+            }
+            sqlNote.setParentId(parentId.longValue());
+        }
+
+        // create the local node
+        sqlNote.setGtaskId(node.getGid());
+        sqlNote.commit(false);
+
+        // update gid-nid mapping
+        mGidToNid.put(node.getGid(), sqlNote.getId());
+        mNidToGid.put(sqlNote.getId(), node.getGid());
+
+        // update meta
+        updateRemoteMeta(node.getGid(), sqlNote);
+    }
+
+    private void updateLocalNode(Node node, Cursor c) throws NetworkFailureException {
+        if (mCancelled) {
+            return;
+        }
+
+        SqlNote sqlNote;
+        // update the note locally
+        sqlNote = new SqlNote(mContext, c);
+        sqlNote.setContent(node.getLocalJSONFromContent());
+
+        Long parentId = (node instanceof Task) ? mGidToNid.get(((Task) node).getParent().getGid())
+                : new Long(Notes.ID_ROOT_FOLDER);
+        if (parentId == null) {
+            Log.e(TAG, "cannot find task's parent id locally");
+            throw new ActionFailureException("cannot update local node");
+        }
+        sqlNote.setParentId(parentId.longValue());
+        sqlNote.commit(true);
+
+        // update meta info
+        updateRemoteMeta(node.getGid(), sqlNote);
+    }
+
+    private void addRemoteNode(Node node, Cursor c) throws NetworkFailureException {
+        if (mCancelled) {
+            return;
+        }
+
+        SqlNote sqlNote = new SqlNote(mContext, c);
+        Node n;
+
+        // update remotely
+        if (sqlNote.isNoteType()) {
+            Task task = new Task();
+            task.setContentByLocalJSON(sqlNote.getContent());
+
+            String parentGid = mNidToGid.get(sqlNote.getParentId());
+            if (parentGid == null) {
+                Log.e(TAG, "cannot find task's parent tasklist");
+                throw new ActionFailureException("cannot add remote task");
+            }
+            mGTaskListHashMap.get(parentGid).addChildTask(task);
+
+            GTaskClient.getInstance().createTask(task);
+            n = (Node) task;
+
+            // add meta
+            updateRemoteMeta(task.getGid(), sqlNote);
+        } else {
+            TaskList tasklist = null;
+
+            // we need to skip folder if it has already existed
+            String folderName = GTaskStringUtils.MIUI_FOLDER_PREFFIX;
+            if (sqlNote.getId() == Notes.ID_ROOT_FOLDER)
+                folderName += GTaskStringUtils.FOLDER_DEFAULT;
+            else if (sqlNote.getId() == Notes.ID_CALL_RECORD_FOLDER)
+                folderName += GTaskStringUtils.FOLDER_CALL_NOTE;
+            else
+                folderName += sqlNote.getSnippet();
+
+            Iterator<Map.Entry<String, TaskList>> iter = mGTaskListHashMap.entrySet().iterator();
+            while (iter.hasNext()) {
+                Map.Entry<String, TaskList> entry = iter.next();
+                String gid = entry.getKey();
+                TaskList list = entry.getValue();
+
+                if (list.getName().equals(folderName)) {
+                    tasklist = list;
+                    if (mGTaskHashMap.containsKey(gid)) {
+                        mGTaskHashMap.remove(gid);
+                    }
+                    break;
+                }
+            }
+
+            // no match we can add now
+            if (tasklist == null) {
+                tasklist = new TaskList();
+                tasklist.setContentByLocalJSON(sqlNote.getContent());
+                GTaskClient.getInstance().createTaskList(tasklist);
+                mGTaskListHashMap.put(tasklist.getGid(), tasklist);
+            }
+            n = (Node) tasklist;
+        }
+
+        // update local note
+        sqlNote.setGtaskId(n.getGid());
+        sqlNote.commit(false);
+        sqlNote.resetLocalModified();
+        sqlNote.commit(true);
+
+        // gid-id mapping
+        mGidToNid.put(n.getGid(), sqlNote.getId());
+        mNidToGid.put(sqlNote.getId(), n.getGid());
+    }
+
+    private void updateRemoteNode(Node node, Cursor c) throws NetworkFailureException {
+        if (mCancelled) {
+            return;
+        }
+
+        SqlNote sqlNote = new SqlNote(mContext, c);
+
+        // update remotely
+        node.setContentByLocalJSON(sqlNote.getContent());
+        GTaskClient.getInstance().addUpdateNode(node);
+
+        // update meta
+        updateRemoteMeta(node.getGid(), sqlNote);
+
+        // move task if necessary
+        if (sqlNote.isNoteType()) {
+            Task task = (Task) node;
+            TaskList preParentList = task.getParent();
+
+            String curParentGid = mNidToGid.get(sqlNote.getParentId());
+            if (curParentGid == null) {
+                Log.e(TAG, "cannot find task's parent tasklist");
+                throw new ActionFailureException("cannot update remote task");
+            }
+            TaskList curParentList = mGTaskListHashMap.get(curParentGid);
+
+            if (preParentList != curParentList) {
+                preParentList.removeChildTask(task);
+                curParentList.addChildTask(task);
+                GTaskClient.getInstance().moveTask(task, preParentList, curParentList);
+            }
+        }
+
+        // clear local modified flag
+        sqlNote.resetLocalModified();
+        sqlNote.commit(true);
+    }
+
+    private void updateRemoteMeta(String gid, SqlNote sqlNote) throws NetworkFailureException {
+        if (sqlNote != null && sqlNote.isNoteType()) {
+            MetaData metaData = mMetaHashMap.get(gid);
+            if (metaData != null) {
+                metaData.setMeta(gid, sqlNote.getContent());
+                GTaskClient.getInstance().addUpdateNode(metaData);
+            } else {
+                metaData = new MetaData();
+                metaData.setMeta(gid, sqlNote.getContent());
+                mMetaList.addChildTask(metaData);
+                mMetaHashMap.put(gid, metaData);
+                GTaskClient.getInstance().createTask(metaData);
+            }
+        }
+    }
+
+    private void refreshLocalSyncId() throws NetworkFailureException {
+        if (mCancelled) {
+            return;
+        }
+
+        // get the latest gtask list
+        mGTaskHashMap.clear();
+        mGTaskListHashMap.clear();
+        mMetaHashMap.clear();
+        initGTaskList();
+
+        Cursor c = null;
+        try {
+            c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE,
+                    "(type<>? AND parent_id<>?)", new String[] {
+                            String.valueOf(Notes.TYPE_SYSTEM), String.valueOf(Notes.ID_TRASH_FOLER)
+                    }, NoteColumns.TYPE + " DESC");
+            if (c != null) {
+                while (c.moveToNext()) {
+                    String gid = c.getString(SqlNote.GTASK_ID_COLUMN);
+                    Node node = mGTaskHashMap.get(gid);
+                    if (node != null) {
+                        mGTaskHashMap.remove(gid);
+                        ContentValues values = new ContentValues();
+                        values.put(NoteColumns.SYNC_ID, node.getLastModified());
+                        mContentResolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI,
+                                c.getLong(SqlNote.ID_COLUMN)), values, null, null);
+                    } else {
+                        Log.e(TAG, "something is missed");
+                        throw new ActionFailureException(
+                                "some local items don't have gid after sync");
+                    }
+                }
+            } else {
+                Log.w(TAG, "failed to query local note to refresh sync id");
+            }
+        } finally {
+            if (c != null) {
+                c.close();
+                c = null;
+            }
+        }
+    }
+
+    public String getSyncAccount() {
+        return GTaskClient.getInstance().getSyncAccount().name;
+    }
+
+    public void cancelSync() {
+        mCancelled = true;
+    }
+}

doc/gtask/remote/GTaskSyncService.java

@@ -24,7 +24,6 @@ import android.os.Bundle;
 import android.os.IBinder;
 
 public class GTaskSyncService extends Service {
-    // 同步动作的广播名称，ACTION_START_SYNC 表示开始同步，ACTION_CANCEL_SYNC 表示取消同步，ACTION_INVALID 表示无效
     public final static String ACTION_STRING_NAME = "sync_action_type";
 
     public final static int ACTION_START_SYNC = 0;
@@ -32,17 +31,17 @@ public class GTaskSyncService extends Service {
     public final static int ACTION_CANCEL_SYNC = 1;
 
     public final static int ACTION_INVALID = 2;
-    // 广播名称和广播消息
+
     public final static String GTASK_SERVICE_BROADCAST_NAME = "net.micode.notes.gtask.remote.gtask_sync_service";
 
     public final static String GTASK_SERVICE_BROADCAST_IS_SYNCING = "isSyncing";
 
     public final static String GTASK_SERVICE_BROADCAST_PROGRESS_MSG = "progressMsg";
-    // 同步任务和同步进度
+
     private static GTaskASyncTask mSyncTask = null;
 
     private static String mSyncProgress = "";
-    // 开始同步
+
     private void startSync() {
         if (mSyncTask == null) {
             mSyncTask = new GTaskASyncTask(this, new GTaskASyncTask.OnCompleteListener() {
@@ -56,7 +55,7 @@ public class GTaskSyncService extends Service {
             mSyncTask.execute();
         }
     }
-    // 取消同步
+
     private void cancelSync() {
         if (mSyncTask != null) {
             mSyncTask.cancelSync();
@@ -93,11 +92,11 @@ public class GTaskSyncService extends Service {
             mSyncTask.cancelSync();
         }
     }
-    // 不支持绑定
+
     public IBinder onBind(Intent intent) {
         return null;
     }
-    // 发送同步进度广播
+
     public void sendBroadcast(String msg) {
         mSyncProgress = msg;
         Intent intent = new Intent(GTASK_SERVICE_BROADCAST_NAME);
@@ -105,25 +104,25 @@ public class GTaskSyncService extends Service {
         intent.putExtra(GTASK_SERVICE_BROADCAST_PROGRESS_MSG, msg);
         sendBroadcast(intent);
     }
-     // 静态方法，开始同步任务
+
     public static void startSync(Activity activity) {
         GTaskManager.getInstance().setActivityContext(activity);
         Intent intent = new Intent(activity, GTaskSyncService.class);
         intent.putExtra(GTaskSyncService.ACTION_STRING_NAME, GTaskSyncService.ACTION_START_SYNC);
         activity.startService(intent);
     }
-    // 静态方法，取消同步任务
+
     public static void cancelSync(Context context) {
-        Intent intent = new Intent(context, GTaskSyncService.class);// 创建一个新的意图Intent，指向GTaskSyncService类，传入context参数
+        Intent intent = new Intent(context, GTaskSyncService.class);
-        intent.putExtra(GTaskSyncService.ACTION_STRING_NAME, GTaskSyncService.ACTION_CANCEL_SYNC);// 给Intent添加一个ACTION_CANCEL_SYNC的字符串Extra参数
+        intent.putExtra(GTaskSyncService.ACTION_STRING_NAME, GTaskSyncService.ACTION_CANCEL_SYNC);
         context.startService(intent);
     }
 
-    public static boolean isSyncing() {// 定义一个公共的静态方法isSyncing，返回值为布尔类型
+    public static boolean isSyncing() {
         return mSyncTask != null;
     }
 
-    public static String getProgressString() {// 定义一个公共的静态方法getProgressString，返回值为字符串类型
+    public static String getProgressString() {
         return mSyncProgress;
     }
 }

doc/model/Note.java

@@ -0,0 +1,253 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.model;
+import android.content.ContentProviderOperation;
+import android.content.ContentProviderResult;
+import android.content.ContentUris;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.OperationApplicationException;
+import android.net.Uri;
+import android.os.RemoteException;
+import android.util.Log;
+
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.CallNote;
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.data.Notes.TextNote;
+
+import java.util.ArrayList;
+
+
+public class Note {
+    private ContentValues mNoteDiffValues;
+    private NoteData mNoteData;
+    private static final String TAG = "Note";
+    /**
+     * Create a new note id for adding a new note to databases
+     */
+    public static synchronized long getNewNoteId(Context context, long folderId) {
+        // Create a new note in the database
+        ContentValues values = new ContentValues();
+        long createdTime = System.currentTimeMillis();
+        values.put(NoteColumns.CREATED_DATE, createdTime);
+        values.put(NoteColumns.MODIFIED_DATE, createdTime);
+        values.put(NoteColumns.TYPE, Notes.TYPE_NOTE);
+        values.put(NoteColumns.LOCAL_MODIFIED, 1);
+        values.put(NoteColumns.PARENT_ID, folderId);
+        Uri uri = context.getContentResolver().insert(Notes.CONTENT_NOTE_URI, values);
+
+        long noteId = 0;
+        try {
+            noteId = Long.valueOf(uri.getPathSegments().get(1));
+        } catch (NumberFormatException e) {
+            Log.e(TAG, "Get note id error :" + e.toString());
+            noteId = 0;
+        }
+        if (noteId == -1) {
+            throw new IllegalStateException("Wrong note id:" + noteId);
+        }
+        return noteId;
+    }
+
+    public Note() {
+        mNoteDiffValues = new ContentValues();
+        mNoteData = new NoteData();
+    }
+
+    public void setNoteValue(String key, String value) {
+        mNoteDiffValues.put(key, value);
+        mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
+        mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
+    }
+
+    public void setTextData(String key, String value) {
+        mNoteData.setTextData(key, value);
+    }
+
+    public void setTextDataId(long id) {
+        mNoteData.setTextDataId(id);
+    }
+
+    public long getTextDataId() {
+        return mNoteData.mTextDataId;
+    }
+
+    public void setCallDataId(long id) {
+        mNoteData.setCallDataId(id);
+    }
+
+    public void setCallData(String key, String value) {
+        mNoteData.setCallData(key, value);
+    }
+
+    public boolean isLocalModified() {
+        return mNoteDiffValues.size() > 0 || mNoteData.isLocalModified();
+    }
+
+    public boolean syncNote(Context context, long noteId) {
+        if (noteId <= 0) {
+            throw new IllegalArgumentException("Wrong note id:" + noteId);
+        }
+
+        if (!isLocalModified()) {
+            return true;
+        }
+
+        /**
+         * In theory, once data changed, the note should be updated on {@link NoteColumns#LOCAL_MODIFIED} and
+         * {@link NoteColumns#MODIFIED_DATE}. For data safety, though update note fails, we also update the
+         * note data info
+         */
+        if (context.getContentResolver().update(
+                ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), mNoteDiffValues, null,
+                null) == 0) {
+            Log.e(TAG, "Update note error, should not happen");
+            // Do not return, fall through
+        }
+        mNoteDiffValues.clear();
+
+        if (mNoteData.isLocalModified()
+                && (mNoteData.pushIntoContentResolver(context, noteId) == null)) {
+            return false;
+        }
+
+        return true;
+    }
+
+    private class NoteData {
+        private long mTextDataId;
+
+        private ContentValues mTextDataValues;
+
+        private long mCallDataId;
+
+        private ContentValues mCallDataValues;
+
+        private static final String TAG = "NoteData";
+
+        public NoteData() {
+            mTextDataValues = new ContentValues();
+            mCallDataValues = new ContentValues();
+            mTextDataId = 0;
+            mCallDataId = 0;
+        }
+
+        boolean isLocalModified() {
+            return mTextDataValues.size() > 0 || mCallDataValues.size() > 0;
+        }
+
+        void setTextDataId(long id) {
+            if(id <= 0) {
+                throw new IllegalArgumentException("Text data id should larger than 0");
+            }
+            mTextDataId = id;
+        }
+
+        void setCallDataId(long id) {
+            if (id <= 0) {
+                throw new IllegalArgumentException("Call data id should larger than 0");
+            }
+            mCallDataId = id;
+        }
+
+        void setCallData(String key, String value) {
+            mCallDataValues.put(key, value);
+            mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
+            mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
+        }
+
+        void setTextData(String key, String value) {
+            mTextDataValues.put(key, value);
+            mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
+            mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
+        }
+
+        Uri pushIntoContentResolver(Context context, long noteId) {
+            /**
+             * Check for safety
+             */
+            if (noteId <= 0) {
+                throw new IllegalArgumentException("Wrong note id:" + noteId);
+            }
+
+            ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
+            ContentProviderOperation.Builder builder = null;
+
+            if(mTextDataValues.size() > 0) {
+                mTextDataValues.put(DataColumns.NOTE_ID, noteId);
+                if (mTextDataId == 0) {
+                    mTextDataValues.put(DataColumns.MIME_TYPE, TextNote.CONTENT_ITEM_TYPE);
+                    Uri uri = context.getContentResolver().insert(Notes.CONTENT_DATA_URI,
+                            mTextDataValues);
+                    try {
+                        setTextDataId(Long.valueOf(uri.getPathSegments().get(1)));
+                    } catch (NumberFormatException e) {
+                        Log.e(TAG, "Insert new text data fail with noteId" + noteId);
+                        mTextDataValues.clear();
+                        return null;
+                    }
+                } else {
+                    builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId(
+                            Notes.CONTENT_DATA_URI, mTextDataId));
+                    builder.withValues(mTextDataValues);
+                    operationList.add(builder.build());
+                }
+                mTextDataValues.clear();
+            }
+
+            if(mCallDataValues.size() > 0) {
+                mCallDataValues.put(DataColumns.NOTE_ID, noteId);
+                if (mCallDataId == 0) {
+                    mCallDataValues.put(DataColumns.MIME_TYPE, CallNote.CONTENT_ITEM_TYPE);
+                    Uri uri = context.getContentResolver().insert(Notes.CONTENT_DATA_URI,
+                            mCallDataValues);
+                    try {
+                        setCallDataId(Long.valueOf(uri.getPathSegments().get(1)));
+                    } catch (NumberFormatException e) {
+                        Log.e(TAG, "Insert new call data fail with noteId" + noteId);
+                        mCallDataValues.clear();
+                        return null;
+                    }
+                } else {
+                    builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId(
+                            Notes.CONTENT_DATA_URI, mCallDataId));
+                    builder.withValues(mCallDataValues);
+                    operationList.add(builder.build());
+                }
+                mCallDataValues.clear();
+            }
+
+            if (operationList.size() > 0) {
+                try {
+                    ContentProviderResult[] results = context.getContentResolver().applyBatch(
+                            Notes.AUTHORITY, operationList);
+                    return (results == null || results.length == 0 || results[0] == null) ? null
+                            : ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId);
+                } catch (RemoteException e) {
+                    Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+                    return null;
+                } catch (OperationApplicationException e) {
+                    Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+                    return null;
+                }
+            }
+            return null;
+        }
+    }
+}

doc/model/WorkingNote.java

@@ -0,0 +1,368 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.model;
+
+import android.appwidget.AppWidgetManager;
+import android.content.ContentUris;
+import android.content.Context;
+import android.database.Cursor;
+import android.text.TextUtils;
+import android.util.Log;
+
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.CallNote;
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.DataConstants;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.data.Notes.TextNote;
+import net.micode.notes.tool.ResourceParser.NoteBgResources;
+
+
+public class WorkingNote {
+    // Note for the working note
+    private Note mNote;
+    // Note Id
+    private long mNoteId;
+    // Note content
+    private String mContent;
+    // Note mode
+    private int mMode;
+
+    private long mAlertDate;
+
+    private long mModifiedDate;
+
+    private int mBgColorId;
+
+    private int mWidgetId;
+
+    private int mWidgetType;
+
+    private long mFolderId;
+
+    private Context mContext;
+
+    private static final String TAG = "WorkingNote";
+
+    private boolean mIsDeleted;
+
+    private NoteSettingChangedListener mNoteSettingStatusListener;
+
+    public static final String[] DATA_PROJECTION = new String[] {
+            DataColumns.ID,
+            DataColumns.CONTENT,
+            DataColumns.MIME_TYPE,
+            DataColumns.DATA1,
+            DataColumns.DATA2,
+            DataColumns.DATA3,
+            DataColumns.DATA4,
+    };
+
+    public static final String[] NOTE_PROJECTION = new String[] {
+            NoteColumns.PARENT_ID,
+            NoteColumns.ALERTED_DATE,
+            NoteColumns.BG_COLOR_ID,
+            NoteColumns.WIDGET_ID,
+            NoteColumns.WIDGET_TYPE,
+            NoteColumns.MODIFIED_DATE
+    };
+
+    private static final int DATA_ID_COLUMN = 0;
+
+    private static final int DATA_CONTENT_COLUMN = 1;
+
+    private static final int DATA_MIME_TYPE_COLUMN = 2;
+
+    private static final int DATA_MODE_COLUMN = 3;
+
+    private static final int NOTE_PARENT_ID_COLUMN = 0;
+
+    private static final int NOTE_ALERTED_DATE_COLUMN = 1;
+
+    private static final int NOTE_BG_COLOR_ID_COLUMN = 2;
+
+    private static final int NOTE_WIDGET_ID_COLUMN = 3;
+
+    private static final int NOTE_WIDGET_TYPE_COLUMN = 4;
+
+    private static final int NOTE_MODIFIED_DATE_COLUMN = 5;
+
+    // New note construct
+    private WorkingNote(Context context, long folderId) {
+        mContext = context;
+        mAlertDate = 0;
+        mModifiedDate = System.currentTimeMillis();
+        mFolderId = folderId;
+        mNote = new Note();
+        mNoteId = 0;
+        mIsDeleted = false;
+        mMode = 0;
+        mWidgetType = Notes.TYPE_WIDGET_INVALIDE;
+    }
+
+    // Existing note construct
+    private WorkingNote(Context context, long noteId, long folderId) {
+        mContext = context;
+        mNoteId = noteId;
+        mFolderId = folderId;
+        mIsDeleted = false;
+        mNote = new Note();
+        loadNote();
+    }
+
+    private void loadNote() {
+        Cursor cursor = mContext.getContentResolver().query(
+                ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mNoteId), NOTE_PROJECTION, null,
+                null, null);
+
+        if (cursor != null) {
+            if (cursor.moveToFirst()) {
+                mFolderId = cursor.getLong(NOTE_PARENT_ID_COLUMN);
+                mBgColorId = cursor.getInt(NOTE_BG_COLOR_ID_COLUMN);
+                mWidgetId = cursor.getInt(NOTE_WIDGET_ID_COLUMN);
+                mWidgetType = cursor.getInt(NOTE_WIDGET_TYPE_COLUMN);
+                mAlertDate = cursor.getLong(NOTE_ALERTED_DATE_COLUMN);
+                mModifiedDate = cursor.getLong(NOTE_MODIFIED_DATE_COLUMN);
+            }
+            cursor.close();
+        } else {
+            Log.e(TAG, "No note with id:" + mNoteId);
+            throw new IllegalArgumentException("Unable to find note with id " + mNoteId);
+        }
+        loadNoteData();
+    }
+
+    private void loadNoteData() {
+        Cursor cursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, DATA_PROJECTION,
+                DataColumns.NOTE_ID + "=?", new String[] {
+                    String.valueOf(mNoteId)
+                }, null);
+
+        if (cursor != null) {
+            if (cursor.moveToFirst()) {
+                do {
+                    String type = cursor.getString(DATA_MIME_TYPE_COLUMN);
+                    if (DataConstants.NOTE.equals(type)) {
+                        mContent = cursor.getString(DATA_CONTENT_COLUMN);
+                        mMode = cursor.getInt(DATA_MODE_COLUMN);
+                        mNote.setTextDataId(cursor.getLong(DATA_ID_COLUMN));
+                    } else if (DataConstants.CALL_NOTE.equals(type)) {
+                        mNote.setCallDataId(cursor.getLong(DATA_ID_COLUMN));
+                    } else {
+                        Log.d(TAG, "Wrong note type with type:" + type);
+                    }
+                } while (cursor.moveToNext());
+            }
+            cursor.close();
+        } else {
+            Log.e(TAG, "No data with id:" + mNoteId);
+            throw new IllegalArgumentException("Unable to find note's data with id " + mNoteId);
+        }
+    }
+
+    public static WorkingNote createEmptyNote(Context context, long folderId, int widgetId,
+            int widgetType, int defaultBgColorId) {
+        WorkingNote note = new WorkingNote(context, folderId);
+        note.setBgColorId(defaultBgColorId);
+        note.setWidgetId(widgetId);
+        note.setWidgetType(widgetType);
+        return note;
+    }
+
+    public static WorkingNote load(Context context, long id) {
+        return new WorkingNote(context, id, 0);
+    }
+
+    public synchronized boolean saveNote() {
+        if (isWorthSaving()) {
+            if (!existInDatabase()) {
+                if ((mNoteId = Note.getNewNoteId(mContext, mFolderId)) == 0) {
+                    Log.e(TAG, "Create new note fail with id:" + mNoteId);
+                    return false;
+                }
+            }
+
+            mNote.syncNote(mContext, mNoteId);
+
+            /**
+             * Update widget content if there exist any widget of this note
+             */
+            if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID
+                    && mWidgetType != Notes.TYPE_WIDGET_INVALIDE
+                    && mNoteSettingStatusListener != null) {
+                mNoteSettingStatusListener.onWidgetChanged();
+            }
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    public boolean existInDatabase() {
+        return mNoteId > 0;
+    }
+
+    private boolean isWorthSaving() {
+        if (mIsDeleted || (!existInDatabase() && TextUtils.isEmpty(mContent))
+                || (existInDatabase() && !mNote.isLocalModified())) {
+            return false;
+        } else {
+            return true;
+        }
+    }
+
+    public void setOnSettingStatusChangedListener(NoteSettingChangedListener l) {
+        mNoteSettingStatusListener = l;
+    }
+
+    public void setAlertDate(long date, boolean set) {
+        if (date != mAlertDate) {
+            mAlertDate = date;
+            mNote.setNoteValue(NoteColumns.ALERTED_DATE, String.valueOf(mAlertDate));
+        }
+        if (mNoteSettingStatusListener != null) {
+            mNoteSettingStatusListener.onClockAlertChanged(date, set);
+        }
+    }
+
+    public void markDeleted(boolean mark) {
+        mIsDeleted = mark;
+        if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID
+                && mWidgetType != Notes.TYPE_WIDGET_INVALIDE && mNoteSettingStatusListener != null) {
+                mNoteSettingStatusListener.onWidgetChanged();
+        }
+    }
+
+    public void setBgColorId(int id) {
+        if (id != mBgColorId) {
+            mBgColorId = id;
+            if (mNoteSettingStatusListener != null) {
+                mNoteSettingStatusListener.onBackgroundColorChanged();
+            }
+            mNote.setNoteValue(NoteColumns.BG_COLOR_ID, String.valueOf(id));
+        }
+    }
+
+    public void setCheckListMode(int mode) {
+        if (mMode != mode) {
+            if (mNoteSettingStatusListener != null) {
+                mNoteSettingStatusListener.onCheckListModeChanged(mMode, mode);
+            }
+            mMode = mode;
+            mNote.setTextData(TextNote.MODE, String.valueOf(mMode));
+        }
+    }
+
+    public void setWidgetType(int type) {
+        if (type != mWidgetType) {
+            mWidgetType = type;
+            mNote.setNoteValue(NoteColumns.WIDGET_TYPE, String.valueOf(mWidgetType));
+        }
+    }
+
+    public void setWidgetId(int id) {
+        if (id != mWidgetId) {
+            mWidgetId = id;
+            mNote.setNoteValue(NoteColumns.WIDGET_ID, String.valueOf(mWidgetId));
+        }
+    }
+
+    public void setWorkingText(String text) {
+        if (!TextUtils.equals(mContent, text)) {
+            mContent = text;
+            mNote.setTextData(DataColumns.CONTENT, mContent);
+        }
+    }
+
+    public void convertToCallNote(String phoneNumber, long callDate) {
+        mNote.setCallData(CallNote.CALL_DATE, String.valueOf(callDate));
+        mNote.setCallData(CallNote.PHONE_NUMBER, phoneNumber);
+        mNote.setNoteValue(NoteColumns.PARENT_ID, String.valueOf(Notes.ID_CALL_RECORD_FOLDER));
+    }
+
+    public boolean hasClockAlert() {
+        return (mAlertDate > 0 ? true : false);
+    }
+
+    public String getContent() {
+        return mContent;
+    }
+
+    public long getAlertDate() {
+        return mAlertDate;
+    }
+
+    public long getModifiedDate() {
+        return mModifiedDate;
+    }
+
+    public int getBgColorResId() {
+        return NoteBgResources.getNoteBgResource(mBgColorId);
+    }
+
+    public int getBgColorId() {
+        return mBgColorId;
+    }
+
+    public int getTitleBgResId() {
+        return NoteBgResources.getNoteTitleBgResource(mBgColorId);
+    }
+
+    public int getCheckListMode() {
+        return mMode;
+    }
+
+    public long getNoteId() {
+        return mNoteId;
+    }
+
+    public long getFolderId() {
+        return mFolderId;
+    }
+
+    public int getWidgetId() {
+        return mWidgetId;
+    }
+
+    public int getWidgetType() {
+        return mWidgetType;
+    }
+
+    public interface NoteSettingChangedListener {
+        /**
+         * Called when the background color of current note has just changed
+         */
+        void onBackgroundColorChanged();
+
+        /**
+         * Called when user set clock
+         */
+        void onClockAlertChanged(long date, boolean set);
+
+        /**
+         * Call when user create note from widget
+         */
+        void onWidgetChanged();
+
+        /**
+         * Call when switch between check list mode and normal mode
+         * @param oldMode is previous mode before change
+         * @param newMode is new mode
+         */
+        void onCheckListModeChanged(int oldMode, int newMode);
+    }
+}

doc/tool/BackupUtils.java

@@ -0,0 +1,344 @@
+/*
+ * 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.tool;
+
+import android.content.Context;
+import android.database.Cursor;
+import android.os.Environment;
+import android.text.TextUtils;
+import android.text.format.DateFormat;
+import android.util.Log;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.DataConstants;
+import net.micode.notes.data.Notes.NoteColumns;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.PrintStream;
+
+
+public class BackupUtils {
+    private static final String TAG = "BackupUtils";
+    // Singleton stuff
+    private static BackupUtils sInstance;
+
+    public static synchronized BackupUtils getInstance(Context context) {
+        if (sInstance == null) {
+            sInstance = new BackupUtils(context);
+        }
+        return sInstance;
+    }
+
+    /**
+     * Following states are signs to represents backup or restore
+     * status
+     */
+    // Currently, the sdcard is not mounted
+    public static final int STATE_SD_CARD_UNMOUONTED           = 0;
+    // The backup file not exist
+    public static final int STATE_BACKUP_FILE_NOT_EXIST        = 1;
+    // The data is not well formated, may be changed by other programs
+    public static final int STATE_DATA_DESTROIED               = 2;
+    // Some run-time exception which causes restore or backup fails
+    public static final int STATE_SYSTEM_ERROR                 = 3;
+    // Backup or restore success
+    public static final int STATE_SUCCESS                      = 4;
+
+    private TextExport mTextExport;
+
+    private BackupUtils(Context context) {
+        mTextExport = new TextExport(context);
+    }
+
+    private static boolean externalStorageAvailable() {
+        return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
+    }
+
+    public int exportToText() {
+        return mTextExport.exportToText();
+    }
+
+    public String getExportedTextFileName() {
+        return mTextExport.mFileName;
+    }
+
+    public String getExportedTextFileDir() {
+        return mTextExport.mFileDirectory;
+    }
+
+    private static class TextExport {
+        private static final String[] NOTE_PROJECTION = {
+                NoteColumns.ID,
+                NoteColumns.MODIFIED_DATE,
+                NoteColumns.SNIPPET,
+                NoteColumns.TYPE
+        };
+
+        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 = {
+                DataColumns.CONTENT,
+                DataColumns.MIME_TYPE,
+                DataColumns.DATA1,
+                DataColumns.DATA2,
+                DataColumns.DATA3,
+                DataColumns.DATA4,
+        };
+
+        private static final int DATA_COLUMN_CONTENT = 0;
+
+        private static final int DATA_COLUMN_MIME_TYPE = 1;
+
+        private static final int DATA_COLUMN_CALL_DATE = 2;
+
+        private static final int DATA_COLUMN_PHONE_NUMBER = 4;
+
+        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;
+
+        private Context mContext;
+        private String mFileName;
+        private String mFileDirectory;
+
+        public TextExport(Context context) {
+            TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note);
+            mContext = context;
+            mFileName = "";
+            mFileDirectory = "";
+        }
+
+        private String getFormat(int id) {
+            return TEXT_FORMAT[id];
+        }
+
+        /**
+         * Export the folder identified by folder id to text
+         */
+        private void exportFolderToText(String folderId, PrintStream ps) {
+            // Query notes belong to this folder
+            Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI,
+                    NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[] {
+                        folderId
+                    }, null);
+
+            if (notesCursor != null) {
+                if (notesCursor.moveToFirst()) {
+                    do {
+                        // Print note's last modified date
+                        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);
+                    } while (notesCursor.moveToNext());
+                }
+                notesCursor.close();
+            }
+        }
+
+        /**
+         * Export note identified by id to a print stream
+         */
+        private void exportNoteToText(String noteId, PrintStream ps) {
+            Cursor dataCursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI,
+                    DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] {
+                        noteId
+                    }, null);
+
+            if (dataCursor != null) {
+                if (dataCursor.moveToFirst()) {
+                    do {
+                        String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE);
+                        if (DataConstants.CALL_NOTE.equals(mimeType)) {
+                            // Print phone number
+                            String phoneNumber = dataCursor.getString(DATA_COLUMN_PHONE_NUMBER);
+                            long callDate = dataCursor.getLong(DATA_COLUMN_CALL_DATE);
+                            String location = dataCursor.getString(DATA_COLUMN_CONTENT);
+
+                            if (!TextUtils.isEmpty(phoneNumber)) {
+                                ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
+                                        phoneNumber));
+                            }
+                            // Print call date
+                            ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), DateFormat
+                                    .format(mContext.getString(R.string.format_datetime_mdhm),
+                                            callDate)));
+                            // Print call attachment location
+                            if (!TextUtils.isEmpty(location)) {
+                                ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
+                                        location));
+                            }
+                        } else if (DataConstants.NOTE.equals(mimeType)) {
+                            String content = dataCursor.getString(DATA_COLUMN_CONTENT);
+                            if (!TextUtils.isEmpty(content)) {
+                                ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
+                                        content));
+                            }
+                        }
+                    } while (dataCursor.moveToNext());
+                }
+                dataCursor.close();
+            }
+            // print a line separator between note
+            try {
+                ps.write(new byte[] {
+                        Character.LINE_SEPARATOR, Character.LETTER_NUMBER
+                });
+            } catch (IOException e) {
+                Log.e(TAG, e.toString());
+            }
+        }
+
+        /**
+         * Note will be exported as text which is user readable
+         */
+        public int exportToText() {
+            if (!externalStorageAvailable()) {
+                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");
+                return STATE_SYSTEM_ERROR;
+            }
+            // First export folder and its notes
+            Cursor folderCursor = mContext.getContentResolver().query(
+                    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.moveToFirst()) {
+                    do {
+                        // Print folder's name
+                        String folderName = "";
+                        if(folderCursor.getLong(NOTE_COLUMN_ID) == Notes.ID_CALL_RECORD_FOLDER) {
+                            folderName = mContext.getString(R.string.call_record_folder_name);
+                        } else {
+                            folderName = folderCursor.getString(NOTE_COLUMN_SNIPPET);
+                        }
+                        if (!TextUtils.isEmpty(folderName)) {
+                            ps.println(String.format(getFormat(FORMAT_FOLDER_NAME), folderName));
+                        }
+                        String folderId = folderCursor.getString(NOTE_COLUMN_ID);
+                        exportFolderToText(folderId, ps);
+                    } while (folderCursor.moveToNext());
+                }
+                folderCursor.close();
+            }
+
+            // Export notes in root's folder
+            Cursor noteCursor = mContext.getContentResolver().query(
+                    Notes.CONTENT_NOTE_URI,
+                    NOTE_PROJECTION,
+                    NoteColumns.TYPE + "=" + +Notes.TYPE_NOTE + " AND " + NoteColumns.PARENT_ID
+                            + "=0", null, null);
+
+            if (noteCursor != null) {
+                if (noteCursor.moveToFirst()) {
+                    do {
+                        ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format(
+                                mContext.getString(R.string.format_datetime_mdhm),
+                                noteCursor.getLong(NOTE_COLUMN_MODIFIED_DATE))));
+                        // Query data belong to this note
+                        String noteId = noteCursor.getString(NOTE_COLUMN_ID);
+                        exportNoteToText(noteId, ps);
+                    } while (noteCursor.moveToNext());
+                }
+                noteCursor.close();
+            }
+            ps.close();
+
+            return STATE_SUCCESS;
+        }
+
+        /**
+         * Get a print stream pointed to the file {@generateExportedTextFile}
+         */
+        private PrintStream getExportToTextPrintStream() {
+            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;
+            }
+            mFileName = file.getName();
+            mFileDirectory = mContext.getString(R.string.file_path);
+            PrintStream ps = null;
+            try {
+                FileOutputStream fos = new FileOutputStream(file);
+                ps = new PrintStream(fos);
+            } catch (FileNotFoundException e) {
+                e.printStackTrace();
+                return null;
+            } catch (NullPointerException e) {
+                e.printStackTrace();
+                return null;
+            }
+            return ps;
+        }
+    }
+
+    /**
+     * Generate the text file to store imported data
+     */
+    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(context.getString(
+                fileNameFormatResId,
+                DateFormat.format(context.getString(R.string.format_date_ymd),
+                        System.currentTimeMillis())));
+        File file = new File(sb.toString());
+
+        try {
+            if (!filedir.exists()) {
+                filedir.mkdir();
+            }
+            if (!file.exists()) {
+                file.createNewFile();
+            }
+            return file;
+        } catch (SecurityException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        return null;
+    }
+}
+
+

doc/tool/DataUtils.java

@@ -37,16 +37,7 @@ import java.util.HashSet;
 
 public class DataUtils {
     public static final String TAG = "DataUtils";
-
-    /**
-     * 批量删除笔记方法
-     *
-     * @param resolver ContentResolver对象
-     * @param ids      HashSet<Long>类型，需要删除的笔记id集合
-     * @return boolean类型，表示是否删除成功
-     */
     public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) {
-        // 如果ids为空或者size为0，则直接返回true
         if (ids == null) {
             Log.d(TAG, "the ids is null");
             return true;
@@ -56,119 +47,74 @@ public class DataUtils {
             return true;
         }
 
-        // 创建操作列表
         ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
         for (long id : ids) {
-            // 不包括系统文件夹根节点
             if(id == Notes.ID_ROOT_FOLDER) {
                 Log.e(TAG, "Don't delete system folder root");
                 continue;
             }
-            // 创建ContentProviderOperation.Builder对象来构建删除该id的操作，并将其添加到operationList中
             ContentProviderOperation.Builder builder = ContentProviderOperation
                     .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
             operationList.add(builder.build());
         }
         try {
-            // 通过ContentResolver的applyBatch()方法将所有操作提交给ContentProvider执行
             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;
             }
-            // 如果成功则返回true
             return true;
         } catch (RemoteException e) {
             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()));
         }
-        // 失败则返回false
         return false;
     }
 
-
-
-    /**
-     * 将笔记移动到指定文件夹下
-     *
-     * @param resolver     ContentResolver对象
-     * @param id           需要移动的笔记id
-     * @param srcFolderId  原文件夹id
-     * @param desFolderId  目标文件夹id
-     */
     public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) {
-        // 创建ContentValues对象，用于存放需要更新的字段和值
         ContentValues values = new ContentValues();
-        // 更新Parent_Id字段为目标文件夹id
         values.put(NoteColumns.PARENT_ID, desFolderId);
-        // 更新Origin_Parent_Id字段为原文件夹id
         values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId);
-        // 更新Local_Modified字段为1
         values.put(NoteColumns.LOCAL_MODIFIED, 1);
-
-        // 调用ContentResolver的update()方法来更新数据
         resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null);
     }
 
-    /**
+    public static boolean batchMoveToFolder(ContentResolver resolver, HashSet<Long> ids,
-     * 批量将笔记移动到指定文件夹下
+            long folderId) {
-     *
-     * @param resolver   ContentResolver对象
-     * @param ids        HashSet<Long>类型，需要移动的笔记id集合
-     * @param folderId   目标文件夹id
-     * @return boolean类型，表示是否移动成功
-     */
-    public static boolean batchMoveToFolder(ContentResolver resolver, HashSet<Long> ids, long folderId) {
-        // 如果ids为空，则直接返回true
         if (ids == null) {
             Log.d(TAG, "the ids is null");
             return true;
         }
 
-        // 创建操作列表
         ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
         for (long id : ids) {
-            // 创建ContentProviderOperation.Builder对象来构建更新该id的操作，并将其添加到operationList中
             ContentProviderOperation.Builder builder = ContentProviderOperation
                     .newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
-            // 更新Parent_Id字段为目标文件夹id
             builder.withValue(NoteColumns.PARENT_ID, folderId);
-            // 更新Local_Modified字段为1
             builder.withValue(NoteColumns.LOCAL_MODIFIED, 1);
             operationList.add(builder.build());
         }
 
         try {
-            // 通过ContentResolver的applyBatch()方法将所有操作提交给ContentProvider执行
             ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
             if (results == null || results.length == 0 || results[0] == null) {
-                Log.d(TAG, "move notes failed, ids:" + ids.toString());
+                Log.d(TAG, "delete notes failed, ids:" + ids.toString());
                 return false;
             }
-            // 如果成功则返回true
             return true;
         } catch (RemoteException e) {
             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()));
         }
-        // 失败则返回false
         return false;
     }
 
-
     /**
      * Get the all folder count except system folders {@link Notes#TYPE_SYSTEM}}
      */
-    /**
-     * 获取用户自定义文件夹数量
-     *
-     * @param resolver ContentResolver对象
-     * @return int类型，表示用户自定义文件夹数量
-     */
     public static int getUserFolderCount(ContentResolver resolver) {
-        // 查询ContentProvider中的所有符合条件的数据，并返回查询结果Cursor对象
         Cursor cursor =resolver.query(Notes.CONTENT_NOTE_URI,
                 new String[] { "COUNT(*)" },
                 NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?",
@@ -179,30 +125,18 @@ public class DataUtils {
         if(cursor != null) {
             if(cursor.moveToFirst()) {
                 try {
-                    // 从Cursor对象中获取查询结果中count字段的值
                     count = cursor.getInt(0);
                 } catch (IndexOutOfBoundsException e) {
                     Log.e(TAG, "get folder count failed:" + e.toString());
                 } finally {
-                    // 关闭游标
                     cursor.close();
                 }
             }
         }
-        // 返回用户自定义文件夹数量
         return count;
     }
 
-    /**
-     * 查询指定id的笔记是否存在于ContentProvider中
-     *
-     * @param resolver ContentResolver对象
-     * @param noteId   需要查询的笔记id
-     * @param type     笔记类型，用于限定查询结果的笔记类型，默认为0表示查询所有类型的笔记
-     * @return boolean类型，表示指定id的笔记是否存在于ContentProvider中
-     */
     public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) {
-        // 查询ContentProvider中指定id的笔记是否存在，并返回查询结果Cursor对象
         Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
                 null,
                 NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER,
@@ -214,23 +148,12 @@ public class DataUtils {
             if (cursor.getCount() > 0) {
                 exist = true;
             }
-            // 关闭游标
             cursor.close();
         }
-        // 返回指定id的笔记是否存在于ContentProvider中
         return exist;
     }
 
-
-    /**
-     * 查询指定id的笔记是否存在于ContentProvider中
-     *
-     * @param resolver ContentResolver对象
-     * @param noteId   需要查询的笔记id
-     * @return boolean类型，表示指定id的笔记是否存在于ContentProvider中
-     */
     public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) {
-        // 查询ContentProvider中指定id的笔记是否存在，并返回查询结果Cursor对象
         Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
                 null, null, null, null);
 
@@ -239,22 +162,12 @@ public class DataUtils {
             if (cursor.getCount() > 0) {
                 exist = true;
             }
-            // 关闭游标
             cursor.close();
         }
-        // 返回指定id的笔记是否存在于ContentProvider中
         return exist;
     }
 
-    /**
-     * 查询指定id的数据是否存在于ContentProvider中
-     *
-     * @param resolver ContentResolver对象
-     * @param dataId   需要查询的数据id
-     * @return boolean类型，表示指定id的数据是否存在于ContentProvider中
-     */
     public static boolean existInDataDatabase(ContentResolver resolver, long dataId) {
-        // 查询ContentProvider中指定id的数据是否存在，并返回查询结果Cursor对象
         Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId),
                 null, null, null, null);
 
@@ -263,48 +176,28 @@ public class DataUtils {
             if (cursor.getCount() > 0) {
                 exist = true;
             }
-            // 关闭游标
             cursor.close();
         }
-        // 返回指定id的数据是否存在于ContentProvider中
         return exist;
     }
 
-    /**
-     * 检查指定名称的文件夹是否存在于ContentProvider中
-     *
-     * @param resolver ContentResolver对象
-     * @param name     需要检查的文件夹名称
-     * @return boolean类型，表示指定名称的文件夹是否存在于ContentProvider中
-     */
     public static boolean checkVisibleFolderName(ContentResolver resolver, String name) {
-        // 查询ContentProvider中指定名称的文件夹是否存在，并返回查询结果Cursor对象
         Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, null,
                 NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER +
-                        " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER +
+                " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER +
-                        " AND " + NoteColumns.SNIPPET + "=?",
+                " AND " + NoteColumns.SNIPPET + "=?",
                 new String[] { name }, null);
         boolean exist = false;
         if(cursor != null) {
             if(cursor.getCount() > 0) {
                 exist = true;
             }
-            // 关闭游标
             cursor.close();
         }
-        // 返回指定名称的文件夹是否存在于ContentProvider中
         return exist;
     }
 
-    /**
-     * 获取指定文件夹下的所有Widget信息
-     *
-     * @param resolver ContentResolver对象
-     * @param folderId 需要查询的文件夹id
-     * @return HashSet<AppWidgetAttribute>类型，表示指定文件夹下的所有Widget信息
-     */
     public static HashSet<AppWidgetAttribute> getFolderNoteWidget(ContentResolver resolver, long folderId) {
-        // 查询ContentProvider中指定文件夹下的所有Widget信息，并返回查询结果Cursor对象
         Cursor c = resolver.query(Notes.CONTENT_NOTE_URI,
                 new String[] { NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE },
                 NoteColumns.PARENT_ID + "=?",
@@ -317,7 +210,6 @@ public class DataUtils {
                 set = new HashSet<AppWidgetAttribute>();
                 do {
                     try {
-                        // 从Cursor对象中获取查询结果中Widget的id和类型，并将其封装到AppWidgetAttribute对象中
                         AppWidgetAttribute widget = new AppWidgetAttribute();
                         widget.widgetId = c.getInt(0);
                         widget.widgetType = c.getInt(1);
@@ -327,23 +219,12 @@ public class DataUtils {
                     }
                 } while (c.moveToNext());
             }
-            // 关闭游标
             c.close();
         }
-        // 返回指定文件夹下的所有Widget信息
         return set;
     }
 
-
-    /**
-     * 根据笔记id获取该笔记对应的电话号码
-     *
-     * @param resolver ContentResolver对象
-     * @param noteId   需要查询的笔记id
-     * @return String类型，表示该笔记对应的电话号码
-     */
     public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) {
-        // 查询ContentProvider中指定笔记id对应的电话号码，并返回查询结果Cursor对象
         Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
                 new String [] { CallNote.PHONE_NUMBER },
                 CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?",
@@ -356,28 +237,17 @@ public class DataUtils {
             } catch (IndexOutOfBoundsException e) {
                 Log.e(TAG, "Get call number fails " + e.toString());
             } finally {
-                // 关闭游标
                 cursor.close();
             }
         }
-        // 如果查询失败则返回空字符串
         return "";
     }
 
-    /**
-     * 根据电话号码和通话日期获取该通话对应的笔记id
-     *
-     * @param resolver     ContentResolver对象
-     * @param phoneNumber  需要查询的电话号码
-     * @param callDate     需要查询的通话日期
-     * @return long类型，表示该通话对应的笔记id
-     */
     public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) {
-        // 查询ContentProvider中指定电话号码和通话日期对应的笔记id，并返回查询结果Cursor对象
         Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
                 new String [] { CallNote.NOTE_ID },
                 CallNote.CALL_DATE + "=? AND " + CallNote.MIME_TYPE + "=? AND PHONE_NUMBERS_EQUAL("
-                        + CallNote.PHONE_NUMBER + ",?)",
+                + CallNote.PHONE_NUMBER + ",?)",
                 new String [] { String.valueOf(callDate), CallNote.CONTENT_ITEM_TYPE, phoneNumber },
                 null);
 
@@ -389,23 +259,12 @@ public class DataUtils {
                     Log.e(TAG, "Get call note id fails " + e.toString());
                 }
             }
-            // 关闭游标
             cursor.close();
         }
-        // 如果查询失败则返回0
         return 0;
     }
 
-
-    /**
-     * 根据笔记id获取该笔记的摘要信息
-     *
-     * @param resolver ContentResolver对象
-     * @param noteId   需要查询的笔记id
-     * @return String类型，表示该笔记的摘要信息
-     */
     public static String getSnippetById(ContentResolver resolver, long noteId) {
-        // 查询ContentProvider中指定笔记id对应的摘要信息，并返回查询结果Cursor对象
         Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI,
                 new String [] { NoteColumns.SNIPPET },
                 NoteColumns.ID + "=?",
@@ -417,29 +276,20 @@ public class DataUtils {
             if (cursor.moveToFirst()) {
                 snippet = cursor.getString(0);
             }
-            // 关闭游标
             cursor.close();
             return snippet;
         }
-        // 如果查询失败则抛出异常
         throw new IllegalArgumentException("Note is not found with id: " + noteId);
     }
 
-    /**
-     * 对给定的摘要信息进行格式化
-     *
-     * @param snippet 需要格式化的摘要信息
-     * @return String类型，表示格式化后的摘要信息
-     */
     public static String getFormattedSnippet(String snippet) {
         if (snippet != null) {
-            snippet = snippet.trim();	// 去除字符串两端的空格
+            snippet = snippet.trim();
-            int index = snippet.indexOf('\n');	// 查找第一个换行符位置
+            int index = snippet.indexOf('\n');
             if (index != -1) {
-                snippet = snippet.substring(0, index);	// 截取换行符之前的部分作为摘要信息
+                snippet = snippet.substring(0, index);
             }
         }
         return snippet;
     }
-
 }

doc/tool/ResourceParser.java

@@ -0,0 +1,181 @@
+/*
+ * 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.tool;
+
+import android.content.Context;
+import android.preference.PreferenceManager;
+
+import net.micode.notes.R;
+import net.micode.notes.ui.NotesPreferenceActivity;
+
+public class ResourceParser {
+
+    public static final int YELLOW           = 0;
+    public static final int BLUE             = 1;
+    public static final int WHITE            = 2;
+    public static final int GREEN            = 3;
+    public static final int RED              = 4;
+
+    public static final int BG_DEFAULT_COLOR = YELLOW;
+
+    public static final int TEXT_SMALL       = 0;
+    public static final int TEXT_MEDIUM      = 1;
+    public static final int TEXT_LARGE       = 2;
+    public static final int TEXT_SUPER       = 3;
+
+    public static final int BG_DEFAULT_FONT_SIZE = TEXT_MEDIUM;
+
+    public static class NoteBgResources {
+        private final static int [] BG_EDIT_RESOURCES = new int [] {
+            R.drawable.edit_yellow,
+            R.drawable.edit_blue,
+            R.drawable.edit_white,
+            R.drawable.edit_green,
+            R.drawable.edit_red
+        };
+
+        private final static int [] BG_EDIT_TITLE_RESOURCES = new int [] {
+            R.drawable.edit_title_yellow,
+            R.drawable.edit_title_blue,
+            R.drawable.edit_title_white,
+            R.drawable.edit_title_green,
+            R.drawable.edit_title_red
+        };
+
+        public static int getNoteBgResource(int id) {
+            return BG_EDIT_RESOURCES[id];
+        }
+
+        public static int getNoteTitleBgResource(int id) {
+            return BG_EDIT_TITLE_RESOURCES[id];
+        }
+    }
+
+    public static int getDefaultBgId(Context context) {
+        if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean(
+                NotesPreferenceActivity.PREFERENCE_SET_BG_COLOR_KEY, false)) {
+            return (int) (Math.random() * NoteBgResources.BG_EDIT_RESOURCES.length);
+        } else {
+            return BG_DEFAULT_COLOR;
+        }
+    }
+
+    public static class NoteItemBgResources {
+        private final static int [] BG_FIRST_RESOURCES = new int [] {
+            R.drawable.list_yellow_up,
+            R.drawable.list_blue_up,
+            R.drawable.list_white_up,
+            R.drawable.list_green_up,
+            R.drawable.list_red_up
+        };
+
+        private final static int [] BG_NORMAL_RESOURCES = new int [] {
+            R.drawable.list_yellow_middle,
+            R.drawable.list_blue_middle,
+            R.drawable.list_white_middle,
+            R.drawable.list_green_middle,
+            R.drawable.list_red_middle
+        };
+
+        private final static int [] BG_LAST_RESOURCES = new int [] {
+            R.drawable.list_yellow_down,
+            R.drawable.list_blue_down,
+            R.drawable.list_white_down,
+            R.drawable.list_green_down,
+            R.drawable.list_red_down,
+        };
+
+        private final static int [] BG_SINGLE_RESOURCES = new int [] {
+            R.drawable.list_yellow_single,
+            R.drawable.list_blue_single,
+            R.drawable.list_white_single,
+            R.drawable.list_green_single,
+            R.drawable.list_red_single
+        };
+
+        public static int getNoteBgFirstRes(int id) {
+            return BG_FIRST_RESOURCES[id];
+        }
+
+        public static int getNoteBgLastRes(int id) {
+            return BG_LAST_RESOURCES[id];
+        }
+
+        public static int getNoteBgSingleRes(int id) {
+            return BG_SINGLE_RESOURCES[id];
+        }
+
+        public static int getNoteBgNormalRes(int id) {
+            return BG_NORMAL_RESOURCES[id];
+        }
+
+        public static int getFolderBgRes() {
+            return R.drawable.list_folder;
+        }
+    }
+
+    public static class WidgetBgResources {
+        private final static int [] BG_2X_RESOURCES = new int [] {
+            R.drawable.widget_2x_yellow,
+            R.drawable.widget_2x_blue,
+            R.drawable.widget_2x_white,
+            R.drawable.widget_2x_green,
+            R.drawable.widget_2x_red,
+        };
+
+        public static int getWidget2xBgResource(int id) {
+            return BG_2X_RESOURCES[id];
+        }
+
+        private final static int [] BG_4X_RESOURCES = new int [] {
+            R.drawable.widget_4x_yellow,
+            R.drawable.widget_4x_blue,
+            R.drawable.widget_4x_white,
+            R.drawable.widget_4x_green,
+            R.drawable.widget_4x_red
+        };
+
+        public static int getWidget4xBgResource(int id) {
+            return BG_4X_RESOURCES[id];
+        }
+    }
+
+    public static class TextAppearanceResources {
+        private final static int [] TEXTAPPEARANCE_RESOURCES = new int [] {
+            R.style.TextAppearanceNormal,
+            R.style.TextAppearanceMedium,
+            R.style.TextAppearanceLarge,
+            R.style.TextAppearanceSuper
+        };
+
+        public static int getTexAppearanceResource(int id) {
+            /**
+             * HACKME: Fix bug of store the resource id in shared preference.
+             * The id may larger than the length of resources, in this case,
+             * return the {@link ResourceParser#BG_DEFAULT_FONT_SIZE}
+             */
+            if (id >= TEXTAPPEARANCE_RESOURCES.length) {
+                return BG_DEFAULT_FONT_SIZE;
+            }
+            return TEXTAPPEARANCE_RESOURCES[id];
+        }
+
+        public static int getResourcesSize() {
+            return TEXTAPPEARANCE_RESOURCES.length;
+        }
+    }
+}

doc/ui/AlarmAlertActivity.java

@@ -41,24 +41,9 @@ import java.io.IOException;
 
 
 public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener {
-    /**
-     * 当前笔记的 ID
-     */
     private long mNoteId;
-
-    /**
-     * 笔记摘录，用于在对话框中显示当前笔记的内容
-     */
     private String mSnippet;
-
-    /**
-     * 笔记摘录预览的最大长度
-     */
     private static final int SNIPPET_PREW_MAX_LEN = 60;
-
-    /**
-     * 媒体播放器，用于播放提醒音
-     */
     MediaPlayer mPlayer;
 
     @Override
@@ -66,11 +51,9 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
         super.onCreate(savedInstanceState);
         requestWindowFeature(Window.FEATURE_NO_TITLE);
 
-        // 将 Activity 显示在锁屏界面上
         final Window win = getWindow();
         win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
 
-        // 如果屏幕还未点亮，保持屏幕常亮并将屏幕点亮
         if (!isScreenOn()) {
             win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
                     | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON
@@ -78,23 +61,19 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
                     | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR);
         }
 
-        // 获取 intent 中传递的笔记 ID，并根据 ID 获取笔记摘录
         Intent intent = getIntent();
+
         try {
             mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1));
             mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId);
-
-            // 将笔记摘录截取到预设的最大长度，并添加省略号
             mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0,
                     SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info)
                     : mSnippet;
         } catch (IllegalArgumentException e) {
-            // 如果 intent 中未传递有效的笔记 ID，则打印异常并退出 Activity
             e.printStackTrace();
             return;
         }
 
-        // 创建媒体播放器，并在数据库中找到当前笔记，如果存在则显示提醒对话框并播放提醒音
         mPlayer = new MediaPlayer();
         if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) {
             showActionDialog();
@@ -104,82 +83,56 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
         }
     }
 
-
-    /**
-     * 判断屏幕是否点亮
-     *
-     * @return 如果屏幕点亮则返回 true，否则返回 false
-     */
     private boolean isScreenOn() {
         PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
         return pm.isScreenOn();
     }
 
-    /**
-     * 播放提醒音
-     */
     private void playAlarmSound() {
-        // 获取默认的闹钟铃声 Uri
         Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM);
 
-        // 获取静音模式下允许播放的音频流类型
         int silentModeStreams = Settings.System.getInt(getContentResolver(),
                 Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0);
 
-        // 根据静音模式设置媒体播放器的音频流类型
         if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) {
             mPlayer.setAudioStreamType(silentModeStreams);
         } else {
             mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM);
         }
-
-        // 设置媒体播放器的数据源，并开始播放
         try {
             mPlayer.setDataSource(this, url);
             mPlayer.prepare();
             mPlayer.setLooping(true);
             mPlayer.start();
         } catch (IllegalArgumentException e) {
+            // TODO Auto-generated catch block
             e.printStackTrace();
         } catch (SecurityException e) {
+            // TODO Auto-generated catch block
             e.printStackTrace();
         } catch (IllegalStateException e) {
+            // TODO Auto-generated catch block
             e.printStackTrace();
         } catch (IOException e) {
+            // TODO Auto-generated catch block
             e.printStackTrace();
         }
     }
 
-    /**
-     * 显示提醒对话框
-     */
     private void showActionDialog() {
-        // 构建对话框，并设置标题、内容和两个按钮（确认和进入）
         AlertDialog.Builder dialog = new AlertDialog.Builder(this);
         dialog.setTitle(R.string.app_name);
         dialog.setMessage(mSnippet);
         dialog.setPositiveButton(R.string.notealert_ok, this);
-
-        // 如果屏幕点亮，则添加“进入”按钮
         if (isScreenOn()) {
             dialog.setNegativeButton(R.string.notealert_enter, this);
         }
-
-        // 显示对话框，并设置对话框关闭时的监听器
         dialog.show().setOnDismissListener(this);
     }
 
-    /**
-     * 处理对话框按钮的点击事件
-     *
-     * @param dialog 点击的对话框
-     * @param which  点击的按钮类型（确定或取消）
-     */
     public void onClick(DialogInterface dialog, int which) {
-        // 根据不同的按钮类型执行不同的操作
         switch (which) {
             case DialogInterface.BUTTON_NEGATIVE:
-                // 如果点击了“进入”按钮，则打开笔记编辑界面并查看当前笔记
                 Intent intent = new Intent(this, NoteEditActivity.class);
                 intent.setAction(Intent.ACTION_VIEW);
                 intent.putExtra(Intent.EXTRA_UID, mNoteId);
@@ -190,28 +143,16 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
         }
     }
 
-
-    /**
-     * 对话框关闭时的回调方法
-     *
-     * @param dialog 对话框
-     */
     public void onDismiss(DialogInterface dialog) {
-        // 停止播放提醒音并关闭 Activity
         stopAlarmSound();
         finish();
     }
 
-    /**
-     * 停止播放提醒音
-     */
     private void stopAlarmSound() {
-        // 如果媒体播放器不为 null，则停止播放并释放资源
         if (mPlayer != null) {
             mPlayer.stop();
             mPlayer.release();
             mPlayer = null;
         }
     }
-
 }

doc/ui/AlarmInitReceiver.java

@@ -30,58 +30,36 @@ import net.micode.notes.data.Notes.NoteColumns;
 
 public class AlarmInitReceiver extends BroadcastReceiver {
 
-    /**
+    private static final String [] PROJECTION = new String [] {
-     * 查询提醒表中所有已提醒过的笔记
+        NoteColumns.ID,
-     */
+        NoteColumns.ALERTED_DATE
-    private static final String[] PROJECTION = new String[]{
-            NoteColumns.ID,
-            NoteColumns.ALERTED_DATE
     };
 
-    /**
+    private static final int COLUMN_ID                = 0;
-     * 笔记 ID 列的索引
+    private static final int COLUMN_ALERTED_DATE      = 1;
-     */
-    private static final int COLUMN_ID = 0;
 
-    /**
-     * 提醒时间列的索引
-     */
-    private static final int COLUMN_ALERTED_DATE = 1;
-
-    /**
-     * 接收系统闹钟广播并处理
-     *
-     * @param context 广播接收器上下文
-     * @param intent  要处理的广播消息
-     */
     @Override
     public void onReceive(Context context, Intent intent) {
-        // 获取当前时间戳
         long currentDate = System.currentTimeMillis();
-
-        // 查询提醒表中所有已提醒过的笔记，并设置提醒闹钟
         Cursor c = context.getContentResolver().query(Notes.CONTENT_NOTE_URI,
                 PROJECTION,
                 NoteColumns.ALERTED_DATE + ">? AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE,
-                new String[]{String.valueOf(currentDate)},
+                new String[] { String.valueOf(currentDate) },
                 null);
 
         if (c != null) {
             if (c.moveToFirst()) {
                 do {
-                    // 获取提醒时间和笔记 ID，并构建相应的 Intent 和 PendingIntent
                     long alertDate = c.getLong(COLUMN_ALERTED_DATE);
                     Intent sender = new Intent(context, AlarmReceiver.class);
                     sender.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, c.getLong(COLUMN_ID)));
                     PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, sender, 0);
-
+                    AlarmManager alermManager = (AlarmManager) context
-                    // 设置提醒闹钟
+                            .getSystemService(Context.ALARM_SERVICE);
-                    AlarmManager alermManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
                     alermManager.set(AlarmManager.RTC_WAKEUP, alertDate, pendingIntent);
                 } while (c.moveToNext());
             }
             c.close();
         }
     }
-
 }

doc/widget/NoteWidgetProvider.java

@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package net.micode.notes.widget;
 import android.app.PendingIntent;
 import android.appwidget.AppWidgetManager;
@@ -38,7 +37,7 @@ public abstract class NoteWidgetProvider extends AppWidgetProvider {
         NoteColumns.ID,
         NoteColumns.BG_COLOR_ID,
         NoteColumns.SNIPPET
-    };//小米便签的桌面挂件
+    };
 
     public static final int COLUMN_ID           = 0;
     public static final int COLUMN_BG_COLOR_ID  = 1;
@@ -105,7 +104,7 @@ public abstract class NoteWidgetProvider extends AppWidgetProvider {
                 rv.setImageViewResource(R.id.widget_bg_image, getBgResourceId(bgId));
                 intent.putExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, bgId);
                 /**
-                 * 生成为小组件启动主机的挂起意图
+                 * Generate the pending intent to start host for the widget
                  */
                 PendingIntent pendingIntent = null;
                 if (privacyMode) {
@@ -130,4 +129,4 @@ public abstract class NoteWidgetProvider extends AppWidgetProvider {
     protected abstract int getLayoutId();
 
     protected abstract int getWidgetType();
-}
+}

doc/widget/NoteWidgetProvider_2x.java

@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package net.micode.notes.widget;
 
 import android.appwidget.AppWidgetManager;
@@ -26,7 +25,6 @@ import net.micode.notes.tool.ResourceParser;
 
 
 public class NoteWidgetProvider_2x extends NoteWidgetProvider {
-     //2倍大小的桌面挂件
     @Override
     public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
         super.update(context, appWidgetManager, appWidgetIds);

doc/widget/NoteWidgetProvider_4x.java

@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package net.micode.notes.widget;
 
 import android.appwidget.AppWidgetManager;
@@ -26,7 +25,6 @@ import net.micode.notes.tool.ResourceParser;
 
 
 public class NoteWidgetProvider_4x extends NoteWidgetProvider {
-     //4倍大小的桌面挂件
     @Override
     public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
         super.update(context, appWidgetManager, appWidgetIds);

other/06_何越_代码标注/gtask/exception/ActionFailureException.java

@@ -1,34 +0,0 @@
-/*
- * 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.gtask.exception; // 定义了一个异常类，位于 net.micode.notes.gtask.exception 包下
-
-public class ActionFailureException extends RuntimeException { // 定义了一个继承自 RuntimeException 的异常类
-
-    private static final long serialVersionUID = 4425249765923293627L; // 定义一个序列化 ID，用于版本控制
-
-    public ActionFailureException() { // 无参构造函数
-        super(); // 调用父类 RuntimeException 的无参构造函数
-    }
-
-    public ActionFailureException(String paramString) { // 带参数构造函数，传入异常信息
-        super(paramString); // 调用父类 RuntimeException 的带参数构造函数，将异常信息传给父类
-    }
-
-    public ActionFailureException(String paramString, Throwable paramThrowable) { // 带参数构造函数，传入异常信息和原始异常
-        super(paramString, paramThrowable); // 调用父类 RuntimeException 的带参数构造函数，将异常信息和原始异常都传给父类
-    }
-}

other/06_何越_代码标注/gtask/remote/GTaskASyncTask.java

@@ -1,117 +0,0 @@
-
-/*
- * 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.
- */
-
-public class GTaskASyncTask extends AsyncTask<Void, String, Integer> {
- 
-     private static int GTASK_SYNC_NOTIFICATION_ID = 5234235;
- 
-     // 定义回调接口 OnCompleteListener
-     public interface OnCompleteListener {
-         void onComplete();
-     }
- 
-     private Context mContext;
- 
-     private NotificationManager mNotifiManager;
- 
-     private GTaskManager mTaskManager;
- 
-     private OnCompleteListener mOnCompleteListener;
- 
-     // 构造函数，初始化成员变量
-     public GTaskASyncTask(Context context, OnCompleteListener listener) {
-         mContext = context;
-         mOnCompleteListener = listener;
-         mNotifiManager = (NotificationManager) mContext
-                 .getSystemService(Context.NOTIFICATION_SERVICE);
-         mTaskManager = GTaskManager.getInstance();
-     }
- 
-     // 取消同步
-     public void cancelSync() {
-         mTaskManager.cancelSync();
-     }
- 
-     // 发布进度
-     public void publishProgess(String message) {
-         publishProgress(new String[] {
-             message
-         });
-     }
- 
-     // 显示通知
-     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;
-         PendingIntent pendingIntent;
-         if (tickerId != R.string.ticker_success) {
-             pendingIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext,
-                     NotesPreferenceActivity.class), 0);
- 
-         } else {
-             pendingIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext,
-                     NotesListActivity.class), 0);
-         }
-         //notification.setLatestEventInfo(mContext, mContext.getString(R.string.app_name), content,
-         //        pendingIntent);
-         mNotifiManager.notify(GTASK_SYNC_NOTIFICATION_ID, notification);
-     }
- 
-     @Override
-     protected Integer doInBackground(Void... unused) {
-         publishProgess(mContext.getString(R.string.sync_progress_login, NotesPreferenceActivity
-                 .getSyncAccountName(mContext)));
-         // 执行同步任务，返回状态码
-         return mTaskManager.sync(mContext, this);
-     }
- 
-     @Override
-     protected void onProgressUpdate(String... progress) {
-         showNotification(R.string.ticker_syncing, progress[0]);
-         if (mContext instanceof GTaskSyncService) {
-             ((GTaskSyncService) mContext).sendBroadcast(progress[0]);
-         }
-     }
- 
-     @Override
-     protected void onPostExecute(Integer result) {
-         // 根据状态码显示通知
-         if (result == GTaskManager.STATE_SUCCESS) {
-             showNotification(R.string.ticker_success, mContext.getString(
-                     R.string.success_sync_account, mTaskManager.getSyncAccount()));
-             NotesPreferenceActivity.setLastSyncTime(mContext, System.currentTimeMillis());
-         } else if (result == GTaskManager.STATE_NETWORK_ERROR) {
-             showNotification(R.string.ticker_fail, mContext.getString(R.string.error_sync_network));
-         } else if (result == GTaskManager.STATE_INTERNAL_ERROR) {
-             showNotification(R.string.ticker_fail, mContext.getString(R.string.error_sync_internal));
-         } else if (result == GTaskManager.STATE_SYNC_CANCELLED) {
-             showNotification(R.string.ticker_cancel, mContext
-                     .getString(R.string.error_sync_cancelled));
-         }
-
-        if (mOnCompleteListener != null) {
-            new Thread(new Runnable() {
-
-                public void run() {
-                    mOnCompleteListener.onComplete();
-                }
-            }).start();
-        }
-    }
-}

other/06_何越_代码标注/gtask/remote/GTaskClient.java

@@ -1,671 +0,0 @@
-/*
- * 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.gtask.remote;
-
-import android.accounts.Account;
-import android.accounts.AccountManager;
-import android.accounts.AccountManagerFuture;
-import android.app.Activity;
-import android.os.Bundle;
-import android.text.TextUtils;
-import android.util.Log;
-
-import net.micode.notes.gtask.data.Node;
-import net.micode.notes.gtask.data.Task;
-import net.micode.notes.gtask.data.TaskList;
-import net.micode.notes.gtask.exception.ActionFailureException;
-import net.micode.notes.gtask.exception.NetworkFailureException;
-import net.micode.notes.tool.GTaskStringUtils;
-import net.micode.notes.ui.NotesPreferenceActivity;
-
-import org.apache.http.HttpEntity;
-import org.apache.http.HttpResponse;
-import org.apache.http.client.ClientProtocolException;
-import org.apache.http.client.entity.UrlEncodedFormEntity;
-import org.apache.http.client.methods.HttpGet;
-import org.apache.http.client.methods.HttpPost;
-import org.apache.http.cookie.Cookie;
-import org.apache.http.impl.client.BasicCookieStore;
-import org.apache.http.impl.client.DefaultHttpClient;
-import org.apache.http.message.BasicNameValuePair;
-import org.apache.http.params.BasicHttpParams;
-import org.apache.http.params.HttpConnectionParams;
-import org.apache.http.params.HttpParams;
-import org.apache.http.params.HttpProtocolParams;
-import org.json.JSONArray;
-import org.json.JSONException;
-import org.json.JSONObject;
-
-import java.io.BufferedReader;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.zip.GZIPInputStream;
-import java.util.zip.Inflater;
-import java.util.zip.InflaterInputStream;
-
-
-public class GTaskClient {
-    private static final String TAG = GTaskClient.class.getSimpleName();
-
-    private static final String GTASK_URL = "https://mail.google.com/tasks/";
-
-    private static final String GTASK_GET_URL = "https://mail.google.com/tasks/ig";
-
-    private static final String GTASK_POST_URL = "https://mail.google.com/tasks/r/ig";
-
-    private static GTaskClient mInstance = null;
-
-    private DefaultHttpClient mHttpClient;
-
-    private String mGetUrl;
-
-    private String mPostUrl;
-
-    private long mClientVersion;
-
-    private boolean mLoggedin;
-
-    private long mLastLoginTime;
-
-    private int mActionId;
-
-    private Account mAccount;
-
-    private JSONArray mUpdateArray;
-
-// 定义一个GTaskClient类，用于管理Google任务API
-public class GTaskClient {
-
-    // 初始化GTaskClient类的私有构造函数
-    private GTaskClient() {
-        mHttpClient = null;
-        mGetUrl = GTASK_GET_URL;
-        mPostUrl = GTASK_POST_URL;
-        mClientVersion = -1;
-        mLoggedin = false;
-        mLastLoginTime = 0;
-        mActionId = 1;
-        mAccount = null;
-        mUpdateArray = null;
-    }
-
-    // 创建一个静态的GTaskClient实例，确保线程安全
-    public static synchronized GTaskClient getInstance() {
-        if (mInstance == null) {
-            mInstance = new GTaskClient();
-        }
-        return mInstance;
-    }
-
-    public boolean login(Activity activity) {
-        // 假设cookie在5分钟后会过期，所以需要重新登录
-        final long interval = 1000 * 60 * 5;
-        if (mLastLoginTime + interval < System.currentTimeMillis()) {
-            mLoggedin = false;
-        }
-    
-        // 如果帐户发生变化，则需要重新登录
-        if (mLoggedin && !TextUtils.equals(getSyncAccount().name, NotesPreferenceActivity.getSyncAccountName(activity))) {
-            mLoggedin = false;
-        }
-    
-        if (mLoggedin) {
-            Log.d(TAG, "already logged in");
-            return true;
-        }
-    
-        mLastLoginTime = System.currentTimeMillis();
-        String authToken = loginGoogleAccount(activity, false);
-        if (authToken == null) {
-            Log.e(TAG, "login google account failed");
-            return false;
-        }
-    
-        // 如果需要，使用自定义域名进行登录
-        if (!(mAccount.name.toLowerCase().endsWith("gmail.com") || mAccount.name.toLowerCase().endsWith("googlemail.com"))) {
-            StringBuilder url = new StringBuilder(GTASK_URL).append("a/");
-            int index = mAccount.name.indexOf('@') + 1;
-            String suffix = mAccount.name.substring(index);
-            url.append(suffix + "/");
-            mGetUrl = url.toString() + "ig";
-            mPostUrl = url.toString() + "r/ig";
-    
-            if (tryToLoginGtask(activity, authToken)) {
-                mLoggedin = true;
-            }
-        }
-    
-        // 尝试使用Google官方URL进行登录
-        if (!mLoggedin) {
-            mGetUrl = GTASK_GET_URL;
-            mPostUrl = GTASK_POST_URL;
-            if (!tryToLoginGtask(activity, authToken)) {
-                return false;
-            }
-        }
-    
-        mLoggedin = true;
-        return true;
-    }
-    
-    // 登录Google账户，获取授权令牌
-    private String loginGoogleAccount(Activity activity, boolean invalidateToken) {
-        String authToken;
-        AccountManager accountManager = AccountManager.get(activity);
-        Account[] accounts = accountManager.getAccountsByType("com.google");
-    
-        if (accounts.length == 0) {
-            Log.e(TAG, "there is no available google account");
-            return null;
-        }
-    
-        String accountName = NotesPreferenceActivity.getSyncAccountName(activity);
-        Account account = null;
-        for (Account a : accounts) {
-            if (a.name.equals(accountName)) {
-                account = a;
-                break;
-            }
-        }
-        if (account != null) {
-            mAccount = account;
-        } else {
-            Log.e(TAG, "unable to get an account with the same name in the settings");
-            return null;
-        }
-    
-        // 获取授权令牌
-        AccountManagerFuture<Bundle> accountManagerFuture = accountManager.getAuthToken(account,
-                "goanna_mobile", null, activity, null, null);
-        try {
-            Bundle authTokenBundle = accountManagerFuture.getResult();
-            authToken = authTokenBundle.getString(AccountManager.KEY_AUTHTOKEN);
-            if (invalidateToken) {
-                // 使令牌无效，并重新获取令牌
-                accountManager.invalidateAuthToken("com.google", authToken);
-                loginGoogleAccount(activity, false);
-            }
-        } catch (Exception e) {
-            Log.e(TAG, "get auth token failed");
-            authToken = null;
-        }
-    
-        return authToken;
-    }
-    
-    // 尝试使用授权令牌进行Gtask登录
-/**
- * 尝试使用指定的身份验证令牌登录到 Gtask 服务。
- * 
- * @param activity 调用此方法的 Activity
- * @param authToken Gtask 服务的身份验证令牌
- * @return 如果登录成功，则返回 true；否则返回 false。
- */    
-    private boolean tryToLoginGtask(Activity activity, String authToken) {
-        // 如果无法成功登录 Gtask 服务，则进行以下处理。
-        if (!loginGtask(authToken)) {
-            // 可能是身份验证令牌过期了，现在我们需要将令牌作废并再次尝试登录。
-            authToken = loginGoogleAccount(activity, true);
-            // 如果登录谷歌帐号失败，则返回 false。
-            if (authToken == null) {
-                Log.e(TAG, "login google account failed");
-                return false;
-            }
-    
-            // 如果仍然无法成功登录 Gtask 服务，则返回 false。
-            if (!loginGtask(authToken)) {
-                Log.e(TAG, "login gtask failed");
-                return false;
-            }
-        }
-        // 如果登录成功，则返回 true。
-        return true;
-    }
-
- /**
- * 使用给定的身份验证令牌登录到 Gtask 服务。
- *
- * @param authToken Gtask 服务的身份验证令牌
- * @return 如果登录成功，则返回 true；否则返回 false。
- */
-private boolean loginGtask(String authToken) {
-    // 配置 HTTP 连接参数。
-    int timeoutConnection = 10000;
-    int timeoutSocket = 15000;
-    HttpParams httpParameters = new BasicHttpParams();
-    HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection);
-    HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);
-
-    // 创建 HTTP 客户端。
-    mHttpClient = new DefaultHttpClient(httpParameters);
-    BasicCookieStore localBasicCookieStore = new BasicCookieStore();
-    mHttpClient.setCookieStore(localBasicCookieStore);
-    HttpProtocolParams.setUseExpectContinue(mHttpClient.getParams(), false);
-
-    // 使用身份验证令牌登录 Gtask 服务。
-    try {
-        String loginUrl = mGetUrl + "?auth=" + authToken;
-        HttpGet httpGet = new HttpGet(loginUrl);
-        HttpResponse response = mHttpClient.execute(httpGet);
-
-        // 获取 Cookie。
-        List<Cookie> cookies = mHttpClient.getCookieStore().getCookies();
-        boolean hasAuthCookie = false;
-        for (Cookie cookie : cookies) {
-            if (cookie.getName().contains("GTL")) {
-                hasAuthCookie = true;
-            }
-        }
-        if (!hasAuthCookie) {
-            Log.w(TAG, "it seems that there is no auth cookie");
-        }
-
-        // 获取客户端版本。
-        String resString = getResponseContent(response.getEntity());
-        String jsBegin = "_setup(";
-        String jsEnd = ")}</script>";
-        int begin = resString.indexOf(jsBegin);
-        int end = resString.lastIndexOf(jsEnd);
-        String jsString = null;
-        if (begin != -1 && end != -1 && begin < end) {
-            jsString = resString.substring(begin + jsBegin.length(), end);
-        }
-        JSONObject js = new JSONObject(jsString);
-        mClientVersion = js.getLong("v");
-    } catch (JSONException e) {
-        Log.e(TAG, e.toString());
-        e.printStackTrace();
-        return false;
-    } catch (Exception e) {
-        Log.e(TAG, "httpget gtask_url failed");
-        return false;
-    }
-
-    return true;
-}
-
-/**
- * 获取下一个操作 ID。
- *
- * @return 下一个操作 ID。
- */
-private int getActionId() {
-    return mActionId++;
-}
-
-/**
- * 创建 HTTP POST 请求。
- *
- * @return 新的 HTTP POST 请求。
- */
-private HttpPost createHttpPost() {
-    HttpPost httpPost = new HttpPost(mPostUrl);
-    httpPost.setHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");
-    httpPost.setHeader("AT", "1");
-    return httpPost;
-}
-
-
-/**
- * 从HttpEntity中获取响应内容
- * @param entity HttpEntity对象
- * @return 响应内容
- * @throws IOException
- */
-private String getResponseContent(HttpEntity entity) throws IOException {
-    String contentEncoding = null;
-    // 获取响应编码方式
-    if (entity.getContentEncoding() != null) {
-        contentEncoding = entity.getContentEncoding().getValue();
-        Log.d(TAG, "encoding: " + contentEncoding);
-    }
-
-    InputStream input = entity.getContent();
-    // 根据编码方式设置InputStream
-    if (contentEncoding != null && contentEncoding.equalsIgnoreCase("gzip")) {
-        input = new GZIPInputStream(entity.getContent());
-    } else if (contentEncoding != null && contentEncoding.equalsIgnoreCase("deflate")) {
-        Inflater inflater = new Inflater(true);
-        input = new InflaterInputStream(entity.getContent(), inflater);
-    }
-
-    try {
-        // 将InputStream转为字符流，并读取响应内容
-        InputStreamReader isr = new InputStreamReader(input);
-        BufferedReader br = new BufferedReader(isr);
-        StringBuilder sb = new StringBuilder();
-
-        while (true) {
-            String buff = br.readLine();
-            if (buff == null) {
-                return sb.toString();
-            }
-            sb = sb.append(buff);
-        }
-    } finally {
-        // 关闭InputStream
-        input.close();
-    }
-}
-
-/**
- * 发送HttpPost请求，并返回JSONObject格式的响应内容
- * @param js JSONObject格式的请求内容
- * @return JSONObject格式的响应内容
- * @throws NetworkFailureException
- */
-private JSONObject postRequest(JSONObject js) throws NetworkFailureException {
-    if (!mLoggedin) {
-        Log.e(TAG, "please login first");
-        throw new ActionFailureException("not logged in");
-    }
-
-    HttpPost httpPost = createHttpPost();
-    try {
-        // 创建请求参数并设置到HttpPost对象中
-        LinkedList<BasicNameValuePair> list = new LinkedList<BasicNameValuePair>();
-        list.add(new BasicNameValuePair("r", js.toString()));
-        UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list, "UTF-8");
-        httpPost.setEntity(entity);
-
-        // 执行HttpPost请求
-        HttpResponse response = mHttpClient.execute(httpPost);
-        // 获取响应内容，并将其转为JSONObject对象
-        String jsString = getResponseContent(response.getEntity());
-        return new JSONObject(jsString);
-
-    } catch (ClientProtocolException e) {
-        Log.e(TAG, e.toString());
-        e.printStackTrace();
-        throw new NetworkFailureException("postRequest failed");
-    } catch (IOException e) {
-        Log.e(TAG, e.toString());
-        e.printStackTrace();
-        throw new NetworkFailureException("postRequest failed");
-    } catch (JSONException e) {
-        Log.e(TAG, e.toString());
-        e.printStackTrace();
-        throw new ActionFailureException("unable to convert response content to jsonobject");
-    } catch (Exception e) {
-        Log.e(TAG, e.toString());
-        e.printStackTrace();
-        throw new ActionFailureException("error occurs when posting request");
-    }
-}
-
-public void createTask(Task task) throws NetworkFailureException {
-    commitUpdate(); // 提交更新
-    try {
-        JSONObject jsPost = new JSONObject(); // 创建一个JSON对象
-        JSONArray actionList = new JSONArray(); // 创建一个JSON数组
-
-        // action_list
-        // 将Task对象的创建操作添加到JSON数组中
-        actionList.put(task.getCreateAction(getActionId())); 
-        // 将JSON数组添加到JSON对象中
-        jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList);
-
-        // client_version
-        // 将客户端版本添加到JSON对象中
-        jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion);
-
-        // post
-        // 发送post请求并接收响应
-        JSONObject jsResponse = postRequest(jsPost);
-        // 获取响应中的结果数组并获取第一个结果对象
-        JSONObject jsResult = (JSONObject) jsResponse.getJSONArray(
-                GTaskStringUtils.GTASK_JSON_RESULTS).get(0);
-        // 将新任务的ID设置为响应中的新ID
-        task.setGid(jsResult.getString(GTaskStringUtils.GTASK_JSON_NEW_ID));
-
-    } catch (JSONException e) {
-        Log.e(TAG, e.toString()); // 输出异常日志
-        e.printStackTrace(); // 打印异常堆栈信息
-        throw new ActionFailureException("create task: handing jsonobject failed"); // 抛出自定义异常
-    }
-}
-
-public void createTaskList(TaskList tasklist) throws NetworkFailureException {
-    commitUpdate(); // 提交更新
-    try {
-        JSONObject jsPost = new JSONObject(); // 创建一个JSON对象
-        JSONArray actionList = new JSONArray(); // 创建一个JSON数组
-
-        // action_list
-        // 将TaskList对象的创建操作添加到JSON数组中
-        actionList.put(tasklist.getCreateAction(getActionId())); 
-        // 将JSON数组添加到JSON对象中
-        jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList);
-
-        // client version
-        // 将客户端版本添加到JSON对象中
-        jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion);
-
-        // post
-        // 发送post请求并接收响应
-        JSONObject jsResponse = postRequest(jsPost);
-        // 获取响应中的结果数组并获取第一个结果对象
-        JSONObject jsResult = (JSONObject) jsResponse.getJSONArray(
-                GTaskStringUtils.GTASK_JSON_RESULTS).get(0);
-        // 将新任务列表的ID设置为响应中的新ID
-        tasklist.setGid(jsResult.getString(GTaskStringUtils.GTASK_JSON_NEW_ID));
-
-    } catch (JSONException e) {
-        Log.e(TAG, e.toString()); // 输出异常日志
-        e.printStackTrace(); // 打印异常堆栈信息
-        throw new ActionFailureException("create tasklist: handing jsonobject failed"); // 抛出自定义异常
-    }
-}
-
-public void commitUpdate() throws NetworkFailureException {
-    // 如果 mUpdateArray 不为空
-    if (mUpdateArray != null) {
-        try {
-            // 新建一个 JSON 对象
-            JSONObject jsPost = new JSONObject();
-
-            // 将 mUpdateArray 放入 JSON 对象中的 action_list 字段
-            jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, mUpdateArray);
-
-            // 将 mClientVersion 放入 JSON 对象中的 client_version 字段
-            jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion);
-
-            // 发送 POST 请求
-            postRequest(jsPost);
-
-            // 清空 mUpdateArray
-            mUpdateArray = null;
-        } catch (JSONException e) {
-            Log.e(TAG, e.toString());
-            e.printStackTrace();
-
-            // 抛出异常
-            throw new ActionFailureException("commit update: handing jsonobject failed");
-        }
-    }
-}
-
-public void addUpdateNode(Node node) throws NetworkFailureException {
-    // 如果 node 不为空
-    if (node != null) {
-        // 如果 mUpdateArray 不为空且长度超过 10，提交更新
-        if (mUpdateArray != null && mUpdateArray.length() > 10) {
-            commitUpdate();
-        }
-
-        // 如果 mUpdateArray 为空，新建一个 JSON 数组
-        if (mUpdateArray == null)
-            mUpdateArray = new JSONArray();
-
-        // 将 node 对象的更新操作添加到 mUpdateArray 中
-        mUpdateArray.put(node.getUpdateAction(getActionId()));
-    }
-}
-
-
-public void moveTask(Task task, TaskList preParent, TaskList curParent)
-throws NetworkFailureException {
-commitUpdate(); // 提交之前所有的更新操作
-
-try {
-JSONObject jsPost = new JSONObject(); // 创建一个 JSON 对象
-JSONArray actionList = new JSONArray(); // 创建一个 JSON 数组，用于存放操作列表
-JSONObject action = new JSONObject(); // 创建一个操作对象
-
-// action_list
-action.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, // 设置操作类型
-        GTaskStringUtils.GTASK_JSON_ACTION_TYPE_MOVE);
-action.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, getActionId()); // 设置操作 ID
-action.put(GTaskStringUtils.GTASK_JSON_ID, task.getGid()); // 设置要移动的任务 ID
-
-if (preParent == curParent && task.getPriorSibling() != null) {
-    // 如果任务在同一个任务列表中移动且不是第一个任务，则添加其前一个任务的 ID
-    action.put(GTaskStringUtils.GTASK_JSON_PRIOR_SIBLING_ID, task.getPriorSibling());
-}
-
-action.put(GTaskStringUtils.GTASK_JSON_SOURCE_LIST, preParent.getGid()); // 设置原任务列表的 ID
-action.put(GTaskStringUtils.GTASK_JSON_DEST_PARENT, curParent.getGid()); // 设置目标任务列表的 ID
-
-if (preParent != curParent) {
-    // 如果任务在不同的任务列表中移动，则添加目标任务列表的 ID
-    action.put(GTaskStringUtils.GTASK_JSON_DEST_LIST, curParent.getGid());
-}
-
-actionList.put(action); // 将操作添加到操作列表中
-jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); // 将操作列表添加到 JSON 对象中
-
-// client_version
-jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); // 添加客户端版本信息
-
-postRequest(jsPost); // 发送请求
-} catch (JSONException e) {
-Log.e(TAG, e.toString());
-e.printStackTrace();
-throw new ActionFailureException("move task: handing jsonobject failed");
-}
-}
-
-public void deleteNode(Node node) throws NetworkFailureException {
-commitUpdate(); // 提交之前所有的更新操作
-
-try {
-JSONObject jsPost = new JSONObject(); // 创建一个 JSON 对象
-JSONArray actionList = new JSONArray(); // 创建一个 JSON 数组，用于存放操作列表
-
-// action_list
-node.setDeleted(true); // 将节点标记为已删除
-actionList.put(node.getUpdateAction(getActionId())); // 将更新操作添加到操作列表中
-jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); // 将操作列表添加到 JSON 对象中
-
-// client_version
-jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); // 添加客户端版本信息
-
-postRequest(jsPost); // 发送请求
-mUpdateArray = null; // 重置更新操作数组
-} catch (JSONException e) {
-Log.e(TAG, e.toString());
-e.printStackTrace();
-throw new ActionFailureException("delete node: handing jsonobject failed");
-}
-}
-
-
-public JSONArray getTaskLists() throws NetworkFailureException {
-    // 如果用户没有登录，则抛出异常
-    if (!mLoggedin) {
-        Log.e(TAG, "please login first");
-        throw new ActionFailureException("not logged in");
-    }
-
-    try {
-        // 发送 HTTP GET 请求，获取任务列表
-        HttpGet httpGet = new HttpGet(mGetUrl);
-        HttpResponse response = null;
-        response = mHttpClient.execute(httpGet);
-
-        // 从响应中提取 JSON 字符串
-        String resString = getResponseContent(response.getEntity());
-        String jsBegin = "_setup(";
-        String jsEnd = ")}</script>";
-        int begin = resString.indexOf(jsBegin);
-        int end = resString.lastIndexOf(jsEnd);
-        String jsString = null;
-        if (begin != -1 && end != -1 && begin < end) {
-            jsString = resString.substring(begin + jsBegin.length(), end);
-        }
-
-        // 解析 JSON 字符串，返回任务列表
-        JSONObject js = new JSONObject(jsString);
-        return js.getJSONObject("t").getJSONArray(GTaskStringUtils.GTASK_JSON_LISTS);
-    } catch (ClientProtocolException e) {
-        Log.e(TAG, e.toString());
-        e.printStackTrace();
-        throw new NetworkFailureException("gettasklists: httpget failed");
-    } catch (IOException e) {
-        Log.e(TAG, e.toString());
-        e.printStackTrace();
-        throw new NetworkFailureException("gettasklists: httpget failed");
-    } catch (JSONException e) {
-        Log.e(TAG, e.toString());
-        e.printStackTrace();
-        throw new ActionFailureException("get task lists: handing jasonobject failed");
-    }
-}
-
-public JSONArray getTaskList(String listGid) throws NetworkFailureException {
-    // 提交未提交的更改
-    commitUpdate();
-    try {
-        JSONObject jsPost = new JSONObject();
-        JSONArray actionList = new JSONArray();
-        JSONObject action = new JSONObject();
-
-        // action_list
-        action.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
-                GTaskStringUtils.GTASK_JSON_ACTION_TYPE_GETALL);
-        action.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, getActionId());
-        action.put(GTaskStringUtils.GTASK_JSON_LIST_ID, listGid);
-        action.put(GTaskStringUtils.GTASK_JSON_GET_DELETED, false);
-        actionList.put(action);
-        jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList);
-
-        // client_version
-        jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion);
-
-        // 发送 POST 请求，获取指定任务列表的任务
-        JSONObject jsResponse = postRequest(jsPost);
-        return jsResponse.getJSONArray(GTaskStringUtils.GTASK_JSON_TASKS);
-    } catch (JSONException e) {
-        Log.e(TAG, e.toString());
-        e.printStackTrace();
-        throw new ActionFailureException("get task list: handing jsonobject failed");
-    }
-}
-
-public Account getSyncAccount() {
-    // 获取同步账户
-    return mAccount;
-}
-
-public void resetUpdateArray() {
-    // 重置未提交的更改
-    mUpdateArray = null;
-}
-

other/06_何越_代码标注/gtask/remote/GTaskManager.java

@@ -1,929 +0,0 @@
-/*
- * 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.gtask.remote;
-
- import android.app.Activity;
- import android.content.ContentResolver;
- import android.content.ContentUris;
- import android.content.ContentValues;
- import android.content.Context;
- import android.database.Cursor;
- import android.util.Log;
- 
- import net.micode.notes.R;
- import net.micode.notes.data.Notes;
- import net.micode.notes.data.Notes.DataColumns;
- import net.micode.notes.data.Notes.NoteColumns;
- import net.micode.notes.gtask.data.MetaData;
- import net.micode.notes.gtask.data.Node;
- import net.micode.notes.gtask.data.SqlNote;
- import net.micode.notes.gtask.data.Task;
- import net.micode.notes.gtask.data.TaskList;
- import net.micode.notes.gtask.exception.ActionFailureException;
- import net.micode.notes.gtask.exception.NetworkFailureException;
- import net.micode.notes.tool.DataUtils;
- import net.micode.notes.tool.GTaskStringUtils;
- 
- import org.json.JSONArray;
- import org.json.JSONException;
- import org.json.JSONObject;
- 
- import java.util.HashMap;
- import java.util.HashSet;
- import java.util.Iterator;
- import java.util.Map;
- 
- 
- public class GTaskManager {
-     private static final String TAG = GTaskManager.class.getSimpleName();
- 
-     public static final int STATE_SUCCESS = 0;
- 
-     public static final int STATE_NETWORK_ERROR = 1;
- 
-     public static final int STATE_INTERNAL_ERROR = 2;
- 
-     public static final int STATE_SYNC_IN_PROGRESS = 3;
- 
-     public static final int STATE_SYNC_CANCELLED = 4;
- 
-     private static GTaskManager mInstance = null;
- 
-     private Activity mActivity;
- 
-     private Context mContext;
- 
-     private ContentResolver mContentResolver;
- 
-     private boolean mSyncing;
- 
-     private boolean mCancelled;
- 
-     private HashMap<String, TaskList> mGTaskListHashMap;
- 
-     private HashMap<String, Node> mGTaskHashMap;
- 
-     private HashMap<String, MetaData> mMetaHashMap;
- 
-     private TaskList mMetaList;
- 
-     private HashSet<Long> mLocalDeleteIdMap;
- 
-     private HashMap<String, Long> mGidToNid;
- 
-     private HashMap<Long, String> mNidToGid;
- 
-     // 定义了一个名为 GTaskManager 的私有类
-private GTaskManager() {
-    // 初始化一些变量
-    mSyncing = false; // 当前不在同步状态
-    mCancelled = false; // 当前没有取消
-    mGTaskListHashMap = new HashMap<String, TaskList>(); // 存储多个任务列表的 HashMap
-    mGTaskHashMap = new HashMap<String, Node>(); // 存储任务的 HashMap
-    mMetaHashMap = new HashMap<String, MetaData>(); // 存储元数据的 HashMap
-    mMetaList = null; // 初始化元数据列表为空
-    mLocalDeleteIdMap = new HashSet<Long>(); // 存储本地删除的任务的 ID 集合
-    mGidToNid = new HashMap<String, Long>(); // 存储 GTask ID 到 Node ID 的映射
-    mNidToGid = new HashMap<Long, String>(); // 存储 Node ID 到 GTask ID 的映射
-}
-
- 
-     // 定义了一个名为 getInstance 的静态方法，返回一个 GTaskManager 对象
-public static synchronized GTaskManager getInstance() {
-    // 如果当前 GTaskManager 对象为空，就创建一个新的 GTaskManager 对象
-    if (mInstance == null) {
-        mInstance = new GTaskManager();
-    }
-    // 返回 GTaskManager 对象
-    return mInstance;
-}
-
-    // 定义了一个名为 setActivityContext 的方法，用于设置 Activity 的上下文
-public synchronized void setActivityContext(Activity activity) {
-    // 用于获取授权令牌（authtoken）的 Activity 上下文
-    mActivity = activity;
-}
-
- 
-    // 定义了一个名为 sync 的方法，用于同步 Google 任务列表
-public int sync(Context context, GTaskASyncTask asyncTask) {
-    // 如果正在同步，则返回“同步进行中”状态
-    if (mSyncing) {
-        Log.d(TAG, "Sync is in progress");
-        return STATE_SYNC_IN_PROGRESS;
-    }
-    // 重置相关变量
-    mContext = context;
-    mContentResolver = mContext.getContentResolver();
-    mSyncing = true;
-    mCancelled = false;
-    mGTaskListHashMap.clear();
-    mGTaskHashMap.clear();
-    mMetaHashMap.clear();
-    mLocalDeleteIdMap.clear();
-    mGidToNid.clear();
-    mNidToGid.clear();
-
-    try {
-        // 获取 GTaskClient 的单例对象
-        GTaskClient client = GTaskClient.getInstance();
-        // 重置更新数组
-        client.resetUpdateArray();
-
-        // 登录 Google 任务列表
-        if (!mCancelled) {
-            if (!client.login(mActivity)) {
-                throw new NetworkFailureException("login google task failed");
-            }
-        }
-
-        // 从 Google 获取任务列表
-        asyncTask.publishProgess(mContext.getString(R.string.sync_progress_init_list));
-        initGTaskList();
-
-        // 进行内容同步工作
-        asyncTask.publishProgess(mContext.getString(R.string.sync_progress_syncing));
-        syncContent();
-    } catch (NetworkFailureException e) {
-        Log.e(TAG, e.toString());
-        return STATE_NETWORK_ERROR;
-    } catch (ActionFailureException e) {
-        Log.e(TAG, e.toString());
-        return STATE_INTERNAL_ERROR;
-    } catch (Exception e) {
-        Log.e(TAG, e.toString());
-        e.printStackTrace();
-        return STATE_INTERNAL_ERROR;
-    } finally {
-        // 清空相关变量
-        mGTaskListHashMap.clear();
-        mGTaskHashMap.clear();
-        mMetaHashMap.clear();
-        mLocalDeleteIdMap.clear();
-        mGidToNid.clear();
-        mNidToGid.clear();
-        mSyncing = false;
-    }
-
-    // 如果已取消，则返回“同步已取消”状态；否则返回“成功”状态
-    return mCancelled ? STATE_SYNC_CANCELLED : STATE_SUCCESS;
-}
-
-    // 初始化 GTask 列表
-
-     private void initGTaskList() throws NetworkFailureException {
-        // 检查是否已取消
-         if (mCancelled)
-             return;
-             // 获取 GTask 客户端
-         GTaskClient client = GTaskClient.getInstance();
-         try {
-            // 获取任务列表的 JSON 数据
-             JSONArray jsTaskLists = client.getTaskLists();
- 
-             // 先初始化元列表
-             mMetaList = null;
-             for (int i = 0; i < jsTaskLists.length(); i++) {
-                // 获取 JSON 数据中的任务列表对象
-                 JSONObject object = jsTaskLists.getJSONObject(i);
-                 String gid = object.getString(GTaskStringUtils.GTASK_JSON_ID);
-                 String name = object.getString(GTaskStringUtils.GTASK_JSON_NAME);
-                // 如果任务列表名称为“MIUI_FOLDER_PREFFIX + FOLDER_META”，则表示为元列表
-                 if (name.equals(GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_META)) {
-                    // 初始化元列表 
-                     mMetaList = new TaskList();
-                     mMetaList.setContentByRemoteJSON(object);
- 
-                     // 加载元数据
-                     JSONArray jsMetas = client.getTaskList(gid);
-                     for (int j = 0; j < jsMetas.length(); j++) {
-                         object = (JSONObject) jsMetas.getJSONObject(j);
-                         MetaData metaData = new MetaData();
-                         metaData.setContentByRemoteJSON(object);
-                         // 如果元数据值得保存，将其添加到元列表中
-                         if (metaData.isWorthSaving()) {
-                             mMetaList.addChildTask(metaData);
-                             // 将元数据关联的 GID 和元数据存储在哈希映射表中
-                             if (metaData.getGid() != null) {
-                                 mMetaHashMap.put(metaData.getRelatedGid(), metaData);
-                             }
-                         }
-                     }
-                 }
-             }
- 
-            // 如果元列表不存在，则创建元列表
-             if (mMetaList == null) {
-                 mMetaList = new TaskList();
-                 mMetaList.setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX
-                         + GTaskStringUtils.FOLDER_META);
-                 GTaskClient.getInstance().createTaskList(mMetaList);
-             }
- 
-             // 初始化任务列表
-             for (int i = 0; i < jsTaskLists.length(); i++) {
-                // 获取 JSON 数据中的任务列表对象
-                 JSONObject object = jsTaskLists.getJSONObject(i);
-                 String gid = object.getString(GTaskStringUtils.GTASK_JSON_ID);
-                 String name = object.getString(GTaskStringUtils.GTASK_JSON_NAME);
-                // 如果任务列表名称以“MIUI_FOLDER_PREFFIX”开头且不是元列表，则为任务列表
-                 if (name.startsWith(GTaskStringUtils.MIUI_FOLDER_PREFFIX)
-                         && !name.equals(GTaskStringUtils.MIUI_FOLDER_PREFFIX
-                                 + GTaskStringUtils.FOLDER_META)) {
-                    // 初始化任务列表
-                     TaskList tasklist = new TaskList();
-                     tasklist.setContentByRemoteJSON(object);
-                     mGTaskListHashMap.put(gid, tasklist);
-                     mGTaskHashMap.put(gid, tasklist);
- 
-                     // 加载任务
-                     JSONArray jsTasks = client.getTaskList(gid);
-                     for (int j = 0; j < jsTasks.length(); j++) {
-                         object = (JSONObject) jsTasks.getJSONObject(j);
-                         gid = object.getString(GTaskStringUtils.GTASK_JSON_ID);
-                         Task task = new Task();
-                         task.setContentByRemoteJSON(object);
-                         // 如果任务值得保存，将其添加
-                         if (task.isWorthSaving()) {
-                             task.setMetaInfo(mMetaHashMap.get(gid));// 设置任务元信息
-                             tasklist.addChildTask(task);// 将任务添加到任务列表的子任务中
-                             mGTaskHashMap.put(gid, task); // 在哈希表中添加任务的ID和任务对象
-                         }
-                     }
-                 }
-             }
-         } catch (JSONException e) {
-             Log.e(TAG, e.toString());
-             e.printStackTrace();
-             throw new ActionFailureException("initGTaskList: handing JSONObject failed");
-         }
-     }
-        // 同步笔记内容 
-     private void syncContent() throws NetworkFailureException {
-         int syncType;
-         Cursor c = null;
-         String gid;
-         Node node;
-
-         mLocalDeleteIdMap.clear();
-         if (mCancelled) {// 如果已取消，直接返回
-             return;
-         }
- 
-         // 处理本地已删除笔记
-         try {
-            // 查询非系统类型且父级 ID 不是回收站的笔记
-             c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE,
-                     "(type<>? AND parent_id=?)", new String[] {
-                             String.valueOf(Notes.TYPE_SYSTEM), String.valueOf(Notes.ID_TRASH_FOLER)
-                     }, null);
-             if (c != null) {
-                 while (c.moveToNext()) {
-                     gid = c.getString(SqlNote.GTASK_ID_COLUMN);
-                     node = mGTaskHashMap.get(gid);
-                     if (node != null) {
-                         mGTaskHashMap.remove(gid);
-                         doContentSync(Node.SYNC_ACTION_DEL_REMOTE, node, c);
-                     }
- 
-                     mLocalDeleteIdMap.add(c.getLong(SqlNote.ID_COLUMN));
-                 }
-             } else {
-                 Log.w(TAG, "failed to query trash folder");
-             }
-         } finally {
-             if (c != null) {
-                 c.close();
-                 c = null;
-             }
-         }
- 
-         // 先同步文件夹
-         syncFolder();
- 
-         // 处理已存在于数据库中的笔记
-         try {
-            // 查询类型为笔记且父级 ID 不是回收站的笔记，按类型倒序排序
-             c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE,
-                     "(type=? AND parent_id<>?)", new String[] {
-                             String.valueOf(Notes.TYPE_NOTE), String.valueOf(Notes.ID_TRASH_FOLER)
-                     }, NoteColumns.TYPE + " DESC");
-             if (c != null) {
-                 while (c.moveToNext()) {
-                     gid = c.getString(SqlNote.GTASK_ID_COLUMN);
-                     node = mGTaskHashMap.get(gid);
-                     if (node != null) {
-                         mGTaskHashMap.remove(gid);
-                         mGidToNid.put(gid, c.getLong(SqlNote.ID_COLUMN));
-                         mNidToGid.put(c.getLong(SqlNote.ID_COLUMN), gid);
-                         syncType = node.getSyncAction(c);// 获取同步类型
-                     } else {
-                         if (c.getString(SqlNote.GTASK_ID_COLUMN).trim().length() == 0) {
-                             // 本地新增
-                             syncType = Node.SYNC_ACTION_ADD_REMOTE;
-                         } else {
-                             // 远程删除
-                             syncType = Node.SYNC_ACTION_DEL_LOCAL;
-                         }
-                     }
-                     doContentSync(syncType, node, c);
-                 }
-             } else {
-                 Log.w(TAG, "failed to query existing note in database");
-             }
- 
-         } finally {
-             if (c != null) {
-                 c.close();
-                 c = null;
-             }
-         }
- 
-         // 处理剩余项
-         Iterator<Map.Entry<String, Node>> iter = mGTaskHashMap.entrySet().iterator();
-         while (iter.hasNext()) {// 如果还有下一个键值对
-             Map.Entry<String, Node> entry = iter.next();// 获取下一个键值对
-             node = entry.getValue();// 获取键值对中的value并将其赋值给node
-             doContentSync(Node.SYNC_ACTION_ADD_LOCAL, node, null);// 将node添加到本地同步
-         }
- 
-         // mCancelled 可能会被另一个线程设置，因此我们需要逐个检查
-        // 清除本地删除表
-         if (!mCancelled) {// 如果未被取消
-             if (!DataUtils.batchDeleteNotes(mContentResolver, mLocalDeleteIdMap)) {// 批量删除本地删除表中的笔记
-                 throw new ActionFailureException("failed to batch-delete local deleted notes");
-             }// 如果删除失败则抛出异常
-         }
- 
-         // 刷新本地同步id
-         if (!mCancelled) {
-             GTaskClient.getInstance().commitUpdate();
-             refreshLocalSyncId();
-         }
- 
-     }
- 
-     private void syncFolder() throws NetworkFailureException {
-         Cursor c = null;// 游标对象，用于访问数据
-         String gid;// GTask任务列表的ID
-         Node node;// GTask任务列表对应的本地节点
-         int syncType;// 本地与远程数据同步的类型
- 
-         if (mCancelled) {// 如果同步已被取消，则直接返回
-             return;
-         }
- 
-         // for root folder
-         try {
-            // 查询根目录的数据
-             c = mContentResolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI,
-                     Notes.ID_ROOT_FOLDER), SqlNote.PROJECTION_NOTE, null, null, null);
-             if (c != null) {
-                 c.moveToNext();// 将游标移动到下一个记录
-                 gid = c.getString(SqlNote.GTASK_ID_COLUMN);// 获取GTask任务列表ID
-                 node = mGTaskHashMap.get(gid);// 从GTask任务列表映射中获取对应本地节点
-                 if (node != null) {
-                     mGTaskHashMap.remove(gid);// 从映射中移除该节点
-                     mGidToNid.put(gid, (long) Notes.ID_ROOT_FOLDER);// 将GTask ID映射到本地ID
-                     mNidToGid.put((long) Notes.ID_ROOT_FOLDER, gid);// 将本地ID映射到GTask ID
-                     // 仅当名称不是默认值时，才更新远程名称
-                     if (!node.getName().equals(
-                             GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_DEFAULT))
-                         doContentSync(Node.SYNC_ACTION_UPDATE_REMOTE, node, c);// 同步本地和远程数据
-                 } else {
-                     doContentSync(Node.SYNC_ACTION_ADD_REMOTE, node, c);// 将本地数据同步到远程
-                 }
-             } else {
-                 Log.w(TAG, "failed to query root folder");// 记录警告信息
-             }
-         } finally {
-             if (c != null) {
-                 c.close();// 关闭游标
-                 c = null;// 将游标对象设置为null
-             }
-         }
- 
-         // for call-note folder
-         try {
-            // 查询通话记录文件夹的数据
-             c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE, "(_id=?)",
-                     new String[] {
-                         String.valueOf(Notes.ID_CALL_RECORD_FOLDER)
-                     }, null);
-             if (c != null) {
-                 if (c.moveToNext()) {
-                     gid = c.getString(SqlNote.GTASK_ID_COLUMN);// 获取GTask任务列表ID
-                     node = mGTaskHashMap.get(gid);// 从GTask任务列表映射中获取对应本地节点
-                     if (node != null) {
-                         mGTaskHashMap.remove(gid);// 从映射中移除该节点
-                         mGidToNid.put(gid, (long) Notes.ID_CALL_RECORD_FOLDER);// 将GTask ID映射到本地ID
-                         mNidToGid.put((long) Notes.ID_CALL_RECORD_FOLDER, gid);// 将本地ID映射到GTask ID
-                         // 仅当名称不是默认值时，才更新远端
-                         if (!node.getName().equals(
-                                 GTaskStringUtils.MIUI_FOLDER_PREFFIX
-                                         + GTaskStringUtils.FOLDER_CALL_NOTE))
-                             doContentSync(Node.SYNC_ACTION_UPDATE_REMOTE, node, c);
-                     } else {
-                         doContentSync(Node.SYNC_ACTION_ADD_REMOTE, node, c);
-                     }
-                 }
-             } else {
-                 Log.w(TAG, "failed to query call note folder");
-             }
-         } finally {
-             if (c != null) {
-                 c.close();
-                 c = null;
-             }
-         }
- 
-         // 处理本地现有文件夹
-         try {
-             c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE,
-                     "(type=? AND parent_id<>?)", new String[] {
-                             String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)
-                     }, NoteColumns.TYPE + " DESC");
-             if (c != null) {
-                 while (c.moveToNext()) {
-                     gid = c.getString(SqlNote.GTASK_ID_COLUMN);
-                     node = mGTaskHashMap.get(gid);
-                     if (node != null) {
-                         mGTaskHashMap.remove(gid);
-                         mGidToNid.put(gid, c.getLong(SqlNote.ID_COLUMN));
-                         mNidToGid.put(c.getLong(SqlNote.ID_COLUMN), gid);
-                         syncType = node.getSyncAction(c);
-                     } else {
-                         if (c.getString(SqlNote.GTASK_ID_COLUMN).trim().length() == 0) {
-                             // 本地新增
-                             syncType = Node.SYNC_ACTION_ADD_REMOTE;
-                         } else {
-                             // 远端删除
-                             syncType = Node.SYNC_ACTION_DEL_LOCAL;
-                         }
-                     }
-                     doContentSync(syncType, node, c);
-                 }
-             } else {
-                 Log.w(TAG, "failed to query existing folder");
-             }
-         } finally {
-             if (c != null) {
-                 c.close();
-                 c = null;
-             }
-         }
- 
-         // 处理远端新增文件夹
-         Iterator<Map.Entry<String, TaskList>> iter = mGTaskListHashMap.entrySet().iterator();
-         while (iter.hasNext()) {
-             Map.Entry<String, TaskList> entry = iter.next();
-             gid = entry.getKey();
-             node = entry.getValue();
-             if (mGTaskHashMap.containsKey(gid)) {
-                 mGTaskHashMap.remove(gid);
-                 doContentSync(Node.SYNC_ACTION_ADD_LOCAL, node, null);
-             }
-         }
- 
-         if (!mCancelled)
-             GTaskClient.getInstance().commitUpdate();
-     }
- 
-     private void doContentSync(int syncType, Node node, Cursor c) throws NetworkFailureException {
-         // 如果取消了同步，则直接返回 
-        if (mCancelled) {
-             return;
-         }
-          // 元数据对象
-         MetaData meta;
-         // 根据同步类型执行相应的操作
-         switch (syncType) {
-            // 本地添加节点
-             case Node.SYNC_ACTION_ADD_LOCAL:
-                 addLocalNode(node);
-                 break;
-            // 远程添加节点
-             case Node.SYNC_ACTION_ADD_REMOTE:
-                 addRemoteNode(node, c);
-                 break;
-             // 本地删除节点
-             case Node.SYNC_ACTION_DEL_LOCAL:
-             // 获取需要删除的节点的元数据
-                 meta = mMetaHashMap.get(c.getString(SqlNote.GTASK_ID_COLUMN));
-                 if (meta != null) {
-                    // 使用 GTaskClient 删除节点
-                     GTaskClient.getInstance().deleteNode(meta);
-                 }
-                 // 将节点 ID 添加到本地删除 ID 映射表中
-                 mLocalDeleteIdMap.add(c.getLong(SqlNote.ID_COLUMN));
-                 break;
-                 // 远程删除节点
-             case Node.SYNC_ACTION_DEL_REMOTE:
-             // 获取需要删除的节点的元数据
-                 meta = mMetaHashMap.get(node.getGid());
-                 if (meta != null) {
-                    // 使用 GTaskClient 删除节点
-                     GTaskClient.getInstance().deleteNode(meta);
-                 }
-                 // 使用 GTaskClient 删除节点
-                 GTaskClient.getInstance().deleteNode(node);
-                 break;
-                 // 本地更新节点
-             case Node.SYNC_ACTION_UPDATE_LOCAL:
-                 updateLocalNode(node, c);
-                 break;
-                 // 远程更新节点
-             case Node.SYNC_ACTION_UPDATE_REMOTE:
-                 updateRemoteNode(node, c);
-                 break;
-                 // 更新冲突
-             case Node.SYNC_ACTION_UPDATE_CONFLICT:
-                 // 可以考虑合并两个修改
-            // 现在先简单地使用本地更新
-                 updateRemoteNode(node, c);
-                 break;
-                 // 不执行任何操作
-             case Node.SYNC_ACTION_NONE:
-                 break;
-                 // 同步操作失败
-             case Node.SYNC_ACTION_ERROR:
-             default:
-              // 抛出异常
-                 throw new ActionFailureException("unkown sync action type");
-         }
-     }
- 
-     private void addLocalNode(Node node) throws NetworkFailureException {
-        // 如果取消了操作，直接返回
-         if (mCancelled) {
-             return;
-         }
-         // 声明一个 SqlNote 对象
-         SqlNote sqlNote;
-         // 如果是 TaskList，判断是哪种文件夹
-         if (node instanceof TaskList) {
-            // 如果是默认文件夹
-             if (node.getName().equals(
-                     GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_DEFAULT)) {
-                        // 新建一个根文件夹的 SqlNote 对象
-                 sqlNote = new SqlNote(mContext, Notes.ID_ROOT_FOLDER);
-             } 
-             // 如果是通话记录文件夹
-             else if (node.getName().equals(
-                     GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_CALL_NOTE)) {
-                        // 新建一个通话记录文件夹的 SqlNote 对象
-                 sqlNote = new SqlNote(mContext, Notes.ID_CALL_RECORD_FOLDER);
-             } 
-             // 如果是其他类型的文件夹
-             else {
-                // 新建一个普通的 SqlNote 对象，并设置其内容和父文件夹 ID
-                 sqlNote = new SqlNote(mContext);
-                 sqlNote.setContent(node.getLocalJSONFromContent());
-                 sqlNote.setParentId(Notes.ID_ROOT_FOLDER);
-             }
-         }
-         // 如果是 Task
-         else {
-            // 新建一个普通的 SqlNote 对象
-             sqlNote = new SqlNote(mContext);
-             // 从 Task 中获取其内容的 JSON 对象
-             JSONObject js = node.getLocalJSONFromContent();
-             try {
-                // 如果 JSON 对象中包含元数据头部信息
-                 if (js.has(GTaskStringUtils.META_HEAD_NOTE)) {
-                    // 获取元数据头部信息中的 Note 对象
-                     JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
-                     // 如果 Note 对象中包含 ID
-                     if (note.has(NoteColumns.ID)) {
-                        // 获取 Note 的 ID
-                         long id = note.getLong(NoteColumns.ID);
-                         // 如果该 ID 在 Note 数据库中已经存在
-                         if (DataUtils.existInNoteDatabase(mContentResolver, id)) {
-                             // 该 ID 已经被占用，需要新建一个 ID
-                             note.remove(NoteColumns.ID);
-                         }
-                     }
-                 }
-                 // 如果 JSON 对象中包含元数据数据部分
-                 if (js.has(GTaskStringUtils.META_HEAD_DATA)) {
-                    // 获取元数据数据部分的 JSON 数组
-                     JSONArray dataArray = js.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
-                     // 遍历该 JSON 数组
-                     for (int i = 0; i < dataArray.length(); i++) {
-                        // 获取数组中的 JSON 对象
-                         JSONObject data = dataArray.getJSONObject(i);
-                         // 如果该 JSON 对象中包含 ID
-                         if (data.has(DataColumns.ID)) {
-                            // 获取该数据的 ID
-                             long dataId = data.getLong(DataColumns.ID);
-                             // 如果该 ID 在数据数据库中已经存在
-                             if (DataUtils.existInDataDatabase(mContentResolver, dataId)) {
-                                  // 该 ID 已经被占用，需要新建一个 ID
-                                 data.remove(DataColumns.ID);
-                             }
-                         }
-                     }
- 
-                 }
-             } catch (JSONException e) {// 捕获 JSON 解析异常
-                 Log.w(TAG, e.toString());// 记录警告日志
-                 e.printStackTrace();// 打印异常堆栈信息
-             }
-             sqlNote.setContent(js);// 设置 SQLNote 的内容为解析出的 js
- 
-             Long parentId = mGidToNid.get(((Task) node).getParent().getGid());// 获取 Task 节点的父节点的 GID 对应的 NID
-             // 如果获取到的 NID 为空
-             if (parentId == null) {
-                 Log.e(TAG, "cannot find task's parent id locally");// 记录错误日志
-                 throw new ActionFailureException("cannot add local node");// 抛出 ActionFailureException 异常
-             }
-             sqlNote.setParentId(parentId.longValue());// 将 SQLNote 的父节点 ID 设置为获取到的 NID
-         }
- 
-         // 创建本地节点
-         sqlNote.setGtaskId(node.getGid());// 设置 SQLNote 的 GTask ID 为节点的 GID
-         sqlNote.commit(false);// 将 SQLNote 提交到本地数据库，不需要立即同步到远程服务器
- 
-         // 更新 GID-NID 映射
-         mGidToNid.put(node.getGid(), sqlNote.getId());// 将节点的 GID 映射为 SQLNote 的 ID
-         mNidToGid.put(sqlNote.getId(), node.getGid());// 将 SQLNote 的 ID 映射为节点的 GID
- 
-         // 更新元数据
-         updateRemoteMeta(node.getGid(), sqlNote);// 同步 SQLNote 的元数据到远程服务器
-     }
- 
-     private void updateLocalNode(Node node, Cursor c) throws NetworkFailureException {
-        // 如果操作已经被取消，则不进行任何操作
-        if (mCancelled) {
-            return;
-        }
-    
-        SqlNote sqlNote;
-        // 将数据库查询结果保存到 SqlNote 对象中
-        sqlNote = new SqlNote(mContext, c);
-        // 将节点内容转换为 JSON 格式并保存到 SqlNote 对象中
-        sqlNote.setContent(node.getLocalJSONFromContent());
-    
-        // 如果节点是任务类型，则将其父节点的 ID 设置为对应的本地 ID，
-        // 否则将其父节点的 ID 设置为根文件夹的 ID
-        Long parentId = (node instanceof Task) ? mGidToNid.get(((Task) node).getParent().getGid())
-                : new Long(Notes.ID_ROOT_FOLDER);
-        // 如果 parentId 为 null，则说明无法在本地找到该任务的父节点 ID，
-        // 此时抛出一个异常
-        if (parentId == null) {
-            Log.e(TAG, "cannot find task's parent id locally");
-            throw new ActionFailureException("cannot update local node");
-        }
-        // 将父节点 ID 设置为 sqlNote 对象的 parentId 属性
-        sqlNote.setParentId(parentId.longValue());
-        // 将 sqlNote 对象的属性保存到数据库中
-        sqlNote.commit(true);
-    
-        // 更新远程节点的元信息
-        updateRemoteMeta(node.getGid(), sqlNote);
-    }
- 
-     private void addRemoteNode(Node node, Cursor c) throws NetworkFailureException {
-        // 如果任务已经被取消，直接返回
-        if (mCancelled) {
-             return;
-         }
-         // 通过Cursor获取SqlNote对象
-         SqlNote sqlNote = new SqlNote(mContext, c);
-         Node n;
- 
-         // 如果SqlNote是任务类型，进行以下操作
-         if (sqlNote.isNoteType()) {
-            // 创建一个Task对象并用SqlNote的内容更新它
-             Task task = new Task();
-             task.setContentByLocalJSON(sqlNote.getContent());
-            
-             // 获取Task对象的父任务列表的gid
-             String parentGid = mNidToGid.get(sqlNote.getParentId());
-            // 如果无法找到父任务列表的gid，抛出ActionFailureException异常
-             if (parentGid == null) {
-                 Log.e(TAG, "cannot find task's parent tasklist");
-                 throw new ActionFailureException("cannot add remote task");
-             }
-             // 在父任务列表中添加子任务
-             mGTaskListHashMap.get(parentGid).addChildTask(task);
-             // 通过GTaskClient实例创建Task任务
-             GTaskClient.getInstance().createTask(task);
-             n = (Node) task;
- 
-             // 添加元数据
-             updateRemoteMeta(task.getGid(), sqlNote);
-         } else {
-             TaskList tasklist = null;
-         // 如果SqlNote是文件夹类型，进行以下操作
-        // 如果是根文件夹，设置文件夹名为默认文件夹
-             String folderName = GTaskStringUtils.MIUI_FOLDER_PREFFIX;
-             if (sqlNote.getId() == Notes.ID_ROOT_FOLDER)
-                 folderName += GTaskStringUtils.FOLDER_DEFAULT;
-                 // 如果是通话记录文件夹，设置文件夹名为通话记录文件夹
-             else if (sqlNote.getId() == Notes.ID_CALL_RECORD_FOLDER)
-                 folderName += GTaskStringUtils.FOLDER_CALL_NOTE;
-                 // 否则，将文件夹名设置为SqlNote对象的片段内容
-             else
-                 folderName += sqlNote.getSnippet();
-            // 遍历mGTaskListHashMap查找是否存在与SqlNote对象匹配的TaskList对象
-             Iterator<Map.Entry<String, TaskList>> iter = mGTaskListHashMap.entrySet().iterator();
-             while (iter.hasNext()) {
-                 Map.Entry<String, TaskList> entry = iter.next();
-                 String gid = entry.getKey();
-                 TaskList list = entry.getValue();
-                // 如果存在匹配的TaskList对象，则将tasklist设置为该对象
-                 if (list.getName().equals(folderName)) {
-                     tasklist = list;
-                     // 如果mGTaskHashMap包含gid，将其从中移除
-                     if (mGTaskHashMap.containsKey(gid)) {
-                         mGTaskHashMap.remove(gid);
-                     }
-                     break;
-                 }
-             }
- 
-             // 如果未找到匹配的TaskList对象，新建一个TaskList对象
-             if (tasklist == null) {
-                 tasklist = new TaskList();
-                 tasklist.setContentByLocalJSON(sqlNote.getContent());
-                 GTaskClient.getInstance().createTaskList(tasklist);
-                 mGTaskListHashMap.put(tasklist.getGid(), tasklist);
-             }
-             n = (Node) tasklist;
-         }
- 
-         // 更新SqlNote对象的GTaskId，并将其提交到本地数据库
-         sqlNote.setGtaskId(n.getGid());
-         sqlNote.commit(false);
-         sqlNote.resetLocalModified();
-         sqlNote.commit(true);
- 
-         // gid-id 映射表
-         mGidToNid.put(n.getGid(), sqlNote.getId());
-         mNidToGid.put(sqlNote.getId(), n.getGid());
-     }
- 
-     private void updateRemoteNode(Node node, Cursor c) throws NetworkFailureException {
-        if (mCancelled) {
-            return;  // 如果任务已取消，则退出此方法
-        }
-    
-        SqlNote sqlNote = new SqlNote(mContext, c);  // 创建 SqlNote 实例
-    
-        // 更新远程服务器的节点内容
-        node.setContentByLocalJSON(sqlNote.getContent());
-        GTaskClient.getInstance().addUpdateNode(node);
-    
-        // 更新节点的元数据
-        updateRemoteMeta(node.getGid(), sqlNote);
-    
-        // 如果是笔记类型，则移动任务（子任务）到另一个任务列表中
-        if (sqlNote.isNoteType()) {
-            Task task = (Task) node;
-            TaskList preParentList = task.getParent();  // 获取任务当前的父任务列表
-    
-            // 查找新的父任务列表的 GID
-            String curParentGid = mNidToGid.get(sqlNote.getParentId());
-            if (curParentGid == null) {
-                Log.e(TAG, "cannot find task's parent tasklist");  // 找不到新父任务列表，记录错误并抛出异常
-                throw new ActionFailureException("cannot update remote task");
-            }
-            TaskList curParentList = mGTaskListHashMap.get(curParentGid);  // 获取新父任务列表的 TaskList 实例
-    
-            // 如果新旧父任务列表不同，则移动任务到新的父任务列表
-            if (preParentList != curParentList) {
-                preParentList.removeChildTask(task);  // 从旧父任务列表中移除该任务
-                curParentList.addChildTask(task);  // 添加该任务到新的父任务列表中
-                GTaskClient.getInstance().moveTask(task, preParentList, curParentList);  // 移动任务到新父任务列表
-            }
-        }
-    
-        sqlNote.resetLocalModified();  // 重置本地修改标记
-        sqlNote.commit(true);  // 将 SqlNote 中的修改提交到本地 SQLite 数据库中
-    }
-    
-    private void updateRemoteMeta(String gid, SqlNote sqlNote) throws NetworkFailureException {
-        // 如果 sqlNote 不为空且为笔记类型，则执行以下代码
-        if (sqlNote != null && sqlNote.isNoteType()) {
-            // 获取 gid 对应的 metaData
-            MetaData metaData = mMetaHashMap.get(gid);
-            if (metaData != null) {
-                // 设置 gid 对应的 metaData 的内容为 sqlNote 的内容
-                metaData.setMeta(gid, sqlNote.getContent());
-                // 将 metaData 添加到更新队列中
-                GTaskClient.getInstance().addUpdateNode(metaData);
-            } else {
-                // 如果 metaData 为空，则创建新的 metaData，并设置其内容为 sqlNote 的内容
-                metaData = new MetaData();
-                metaData.setMeta(gid, sqlNote.getContent());
-                // 将 metaData 添加到 mMetaList 的子任务列表中
-                mMetaList.addChildTask(metaData);
-                // 将 metaData 添加到 mMetaHashMap 中
-                mMetaHashMap.put(gid, metaData);
-                // 创建任务并将其添加到 GTaskClient 的任务列表中
-                GTaskClient.getInstance().createTask(metaData);
-            }
-        }
-    }
-    
- 
-     // 声明一个方法，用于更新本地同步 ID，如果网络故障则抛出 NetworkFailureException 异常
-    private void refreshLocalSyncId() throws NetworkFailureException {
-        // 如果已取消，则直接返回
-        if (mCancelled) {
-         return;
-        }
-
-        // 清空哈希表
-        mGTaskHashMap.clear();
-        mGTaskListHashMap.clear();
-        mMetaHashMap.clear();
-        // 初始化 GTask 列表
-        initGTaskList();
-
-        // 声明一个游标，用于查询本地便签
-        Cursor c = null;
-        try {
-            // 查询不属于系统类型和垃圾桶类型的所有便签
-            c = mContentResolver.query(
-                   Notes.CONTENT_NOTE_URI,
-                    SqlNote.PROJECTION_NOTE,
-                    "(type<>? AND parent_id<>?)",
-                    new String[] {
-                            String.valueOf(Notes.TYPE_SYSTEM),
-                        String.valueOf(Notes.ID_TRASH_FOLER)
-                    },
-                    NoteColumns.TYPE + " DESC"
-            );
-
-            // 如果查询结果不为空
-            if (c != null) {
-                // 遍历查询结果
-                while (c.moveToNext()) {
-                    // 获取当前便签的 GTask ID
-                    String gid = c.getString(SqlNote.GTASK_ID_COLUMN);
-                    // 根据 GTask ID 从 GTask 哈希表中获取节点信息
-                    Node node = mGTaskHashMap.get(gid);
-                    // 如果节点信息不为空
-                    if (node != null) {
-                        // 从 GTask 哈希表中移除当前 GTask ID 对应的节点
-                        mGTaskHashMap.remove(gid);
-                        // 创建一个 ContentValues 对象，用于更新本地便签的同步 ID
-                        ContentValues values = new ContentValues();
-                        values.put(NoteColumns.SYNC_ID, node.getLastModified());
-                        // 更新本地便签的同步 ID
-                         mContentResolver.update(
-                                ContentUris.withAppendedId(
-                                        Notes.CONTENT_NOTE_URI,
-                                        c.getLong(SqlNote.ID_COLUMN)
-                                ),
-                                values,
-                                null,
-                                null
-                        );
-                    } else {
-                         // 如果节点信息为空，打印日志并抛出 ActionFailureException 异常
-                        Log.e(TAG, "something is missed");
-                        throw new ActionFailureException(
-                                "some local items don't have gid after sync"
-                        );
-                    }
-                }
-            } else {
-                // 如果查询结果为空，打印警告日志
-                Log.w(TAG, "failed to query local note to refresh sync id");
-            }
-        } finally {
-            // 关闭游标
-            if (c != null) {
-                c.close();
-                c = null;
-            }
-        }
-    }
-
- 
-     public String getSyncAccount() {
-         return GTaskClient.getInstance().getSyncAccount().name;
-     }
- 
-     public void cancelSync() {
-         mCancelled = true;
-     }
- }
- 

other/06_凌子杰_代码标注/ui/AlarmReceiver.java

@@ -1,39 +0,0 @@
-/*
- * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package net.micode.notes.ui;
-
-import android.content.BroadcastReceiver;
-import android.content.Context;
-import android.content.Intent;
-
-public class AlarmReceiver extends BroadcastReceiver {
-    @Override
-    public void onReceive(Context context, Intent intent) {
-        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，
-<<<<<<< remotes/origin/lzj_branch
-//作用还需要深究但是对于setClass和addFlags的
-=======
-//作用还需要深究但是对于setClass和addFlags的
->>>>>>> local

other/06_凌子杰_代码标注/ui/DateTimePicker.java

@@ -1,495 +0,0 @@
-/*
- * 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.
- */
-
-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;
-
-    private static final int HOURS_IN_HALF_DAY = 12;
-    private static final int HOURS_IN_ALL_DAY = 24;
-    private static final int DAYS_IN_ALL_WEEK = 7;
-    private static final int DATE_SPINNER_MIN_VAL = 0;
-    private static final int DATE_SPINNER_MAX_VAL = DAYS_IN_ALL_WEEK - 1;
-    private static final int HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW = 0;
-    private static final int HOUR_SPINNER_MAX_VAL_24_HOUR_VIEW = 23;
-    private static final int HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW = 1;
-    private static final int HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW = 12;
-    private static final int MINUT_SPINNER_MIN_VAL = 0;
-    private static final int MINUT_SPINNER_MAX_VAL = 59;
-    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];
-
-    private boolean mIsAm;
-
-    private boolean mIs24HourView;
-
-    private boolean mIsEnabled = DEFAULT_ENABLE_STATE;
-
-    private boolean mInitialising;
-
-    private OnDateTimeChangedListener mOnDateTimeChangedListener;
-
-    private NumberPicker.OnValueChangeListener mOnDateChangedListener = new NumberPicker.OnValueChangeListener() {
-        @Override
-        public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
-            mDate.add(Calendar.DAY_OF_YEAR, newVal - oldVal);
-            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));
-                setCurrentMonth(cal.get(Calendar.MONTH));
-                setCurrentDay(cal.get(Calendar.DAY_OF_MONTH));
-            }
-        }
-    };
-
-    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());
-                updateDateControl();
-                int newHour = getCurrentHourOfDay();
-                if (newHour >= HOURS_IN_HALF_DAY) {
-                    mIsAm = false;
-                    updateAmPmControl();
-                } else {
-                    mIsAm = true;
-                    updateAmPmControl();
-                }
-            }
-            mDate.set(Calendar.MINUTE, newVal);
-            onDateTimeChanged();
-        }
-    };
-
-    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;
-            if (mIsAm) {
-                mDate.add(Calendar.HOUR_OF_DAY, -HOURS_IN_HALF_DAY);
-            } else {
-                mDate.add(Calendar.HOUR_OF_DAY, HOURS_IN_HALF_DAY);
-            }
-            updateAmPmControl();
-            onDateTimeChanged();
-        }
-    };
-
-    public interface OnDateTimeChangedListener {
-        void onDateTimeChanged(DateTimePicker view, int year, int month,
-                int dayOfMonth, int hourOfDay, int minute);
-    }
-
-    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);
-        mDateSpinner.setOnValueChangedListener(mOnDateChangedListener);
-
-        mHourSpinner = (NumberPicker) findViewById(R.id.hour);
-        mHourSpinner.setOnValueChangedListener(mOnHourChangedListener);
-        mMinuteSpinner =  (NumberPicker) findViewById(R.id.minute);
-        mMinuteSpinner.setMinValue(MINUT_SPINNER_MIN_VAL);
-        mMinuteSpinner.setMaxValue(MINUT_SPINNER_MAX_VAL);
-        mMinuteSpinner.setOnLongPressUpdateInterval(100);
-        mMinuteSpinner.setOnValueChangedListener(mOnMinuteChangedListener);
-
-        String[] stringsForAmPm = new DateFormatSymbols().getAmPmStrings();
-        mAmPmSpinner = (NumberPicker) findViewById(R.id.amPm);
-        mAmPmSpinner.setMinValue(AMPM_SPINNER_MIN_VAL);
-        mAmPmSpinner.setMaxValue(AMPM_SPINNER_MAX_VAL);
-        mAmPmSpinner.setDisplayedValues(stringsForAmPm);
-        mAmPmSpinner.setOnValueChangedListener(mOnAmPmChangedListener);
-
-        // update controls to initial state
-        updateDateControl();
-        updateHourControl();
-        updateAmPmControl();
-
-        set24HourView(is24HourView);
-
-        // set to current time
-        setCurrentDate(date);
-
-        setEnabled(isEnabled());
-
-        // set the content descriptions
-        mInitialising = false;
-    }
-
-    @Override
-    public void setEnabled(boolean enabled) {
-        if (mIsEnabled == enabled) {
-            return;
-        }
-        super.setEnabled(enabled);
-        mDateSpinner.setEnabled(enabled);
-        mMinuteSpinner.setEnabled(enabled);
-        mHourSpinner.setEnabled(enabled);
-        mAmPmSpinner.setEnabled(enabled);
-        mIsEnabled = enabled;
-    }
-    //存在疑问：setEnabled的作用
-    //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;
-    }
-
-    /**
-     * Get the current date in millis
-     *
-     * @return the current date in millis
-     */
-    public long getCurrentDateInTimeMillis() {
-        return mDate.getTimeInMillis();
-    }
-    //实现函数——得到当前的秒数
-
-    /**
-     * Set the current date
-     *
-     * @param date The current date in millis
-     */
-    public void setCurrentDate(long date) {
-        Calendar cal = Calendar.getInstance();
-        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
-     *
-     * @param year The current year
-     * @param month The current month
-     * @param dayOfMonth The current dayOfMonth
-     * @param hourOfDay The current hourOfDay
-     * @param minute The current minute
-     */
-    public void setCurrentDate(int year, int month,
-            int dayOfMonth, int hourOfDay, int minute) {
-        setCurrentYear(year);
-        setCurrentMonth(month);
-        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);
-    }
-
-    /**
-     * Set current year
-     *
-     * @param year The current year
-     */
-    public void setCurrentYear(int year) {
-        if (!mInitialising && year == getCurrentYear()) {
-            return;
-        }
-        mDate.set(Calendar.YEAR, year);
-        updateDateControl();
-        onDateTimeChanged();
-    }
-
-    /**
-     * Get current month in the year
-     *
-     * @return The current month in the year
-     */
-    public int getCurrentMonth() {
-        return mDate.get(Calendar.MONTH);
-    }
-
-    /**
-     * Set current month in the year
-     *
-     * @param month The month in the year
-     */
-    public void setCurrentMonth(int month) {
-        if (!mInitialising && month == getCurrentMonth()) {
-            return;
-        }
-        mDate.set(Calendar.MONTH, month);
-        updateDateControl();
-        onDateTimeChanged();
-    }
-
-    /**
-     * Get current day of the month
-     *
-     * @return The day of the month
-     */
-    public int getCurrentDay() {
-        return mDate.get(Calendar.DAY_OF_MONTH);
-    }
-
-    /**
-     * Set current day of the month
-     *
-     * @param dayOfMonth The day of the month
-     */
-    public void setCurrentDay(int dayOfMonth) {
-        if (!mInitialising && dayOfMonth == getCurrentDay()) {
-            return;
-        }
-        mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth);
-        updateDateControl();
-        onDateTimeChanged();
-    }
-
-    /**
-     * Get current hour in 24 hour mode, in the range (0~23)
-     * @return The current hour in 24 hour mode
-     */
-    public int getCurrentHourOfDay() {
-        return mDate.get(Calendar.HOUR_OF_DAY);
-    }
-
-    private int getCurrentHour() {
-        if (mIs24HourView){
-            return getCurrentHourOfDay();
-        } else {
-            int hour = getCurrentHourOfDay();
-            if (hour > HOURS_IN_HALF_DAY) {
-                return hour - HOURS_IN_HALF_DAY;
-            } else {
-                return hour == 0 ? HOURS_IN_HALF_DAY : hour;
-            }
-        }
-    }
-
-    /**
-     * Set current hour in 24 hour mode, in the range (0~23)
-     *
-     * @param hourOfDay
-     */
-    public void setCurrentHour(int hourOfDay) {
-        if (!mInitialising && hourOfDay == getCurrentHourOfDay()) {
-            return;
-        }
-        mDate.set(Calendar.HOUR_OF_DAY, hourOfDay);
-        if (!mIs24HourView) {
-            if (hourOfDay >= HOURS_IN_HALF_DAY) {
-                mIsAm = false;
-                if (hourOfDay > HOURS_IN_HALF_DAY) {
-                    hourOfDay -= HOURS_IN_HALF_DAY;
-                }
-            } else {
-                mIsAm = true;
-                if (hourOfDay == 0) {
-                    hourOfDay = HOURS_IN_HALF_DAY;
-                }
-            }
-            updateAmPmControl();
-        }
-        mHourSpinner.setValue(hourOfDay);
-        onDateTimeChanged();
-    }
-
-    /**
-     * Get currentMinute
-     *
-     * @return The Current Minute
-     */
-    public int getCurrentMinute() {
-        return mDate.get(Calendar.MINUTE);
-    }
-
-    /**
-     * Set current minute
-     */
-    public void setCurrentMinute(int minute) {
-        if (!mInitialising && minute == getCurrentMinute()) {
-            return;
-        }
-        mMinuteSpinner.setValue(minute);
-        mDate.set(Calendar.MINUTE, minute);
-        onDateTimeChanged();
-    }
-
-    /**
-     * @return true if this is in 24 hour view else false.
-     */
-    public boolean is24HourView () {
-        return mIs24HourView;
-    }
-
-    /**
-     * Set whether in 24 hour or AM/PM mode.
-     *
-     * @param is24HourView True for 24 hour mode. False for AM/PM mode.
-     */
-    public void set24HourView(boolean is24HourView) {
-        if (mIs24HourView == is24HourView) {
-            return;
-        }
-        mIs24HourView = is24HourView;
-        mAmPmSpinner.setVisibility(is24HourView ? View.GONE : View.VISIBLE);
-        int hour = getCurrentHourOfDay();
-        updateHourControl();
-        setCurrentHour(hour);
-        updateAmPmControl();
-    }
-
-    private void updateDateControl() {
-        Calendar cal = Calendar.getInstance();
-        cal.setTimeInMillis(mDate.getTimeInMillis());
-        cal.add(Calendar.DAY_OF_YEAR, -DAYS_IN_ALL_WEEK / 2 - 1);
-        mDateSpinner.setDisplayedValues(null);
-        for (int i = 0; i < DAYS_IN_ALL_WEEK; ++i) {
-            cal.add(Calendar.DAY_OF_YEAR, 1);
-            mDateDisplayValues[i] = (String) DateFormat.format("MM.dd EEEE", cal);
-        }
-        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) {
-            mAmPmSpinner.setVisibility(View.GONE);
-        } else {
-            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() {
-        if (mIs24HourView) {
-            mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW);
-            mHourSpinner.setMaxValue(HOUR_SPINNER_MAX_VAL_24_HOUR_VIEW);
-        } else {
-            mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW);
-            mHourSpinner.setMaxValue(HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW);
-        }
-    }// 对于小时的算法
-
-    /**
-     * Set the callback that indicates the 'Set' button has been pressed.
-     * @param callback the callback, if null will do nothing
-     */
-    public void setOnDateTimeChangedListener(OnDateTimeChangedListener callback) {
-        mOnDateTimeChangedListener = callback;
-    }
-
-    private void onDateTimeChanged() {
-        if (mOnDateTimeChangedListener != null) {
-            mOnDateTimeChangedListener.onDateTimeChanged(this, getCurrentYear(),
-                    getCurrentMonth(), getCurrentDay(), getCurrentHourOfDay(), getCurrentMinute());
-        }
-    }
-}
-

other/06_凌子杰_代码标注/ui/DateTimePickerDialog.java

@@ -1,102 +0,0 @@
-/*
- * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package net.micode.notes.ui;
-
-import java.util.Calendar;
-
-import net.micode.notes.R;
-import net.micode.notes.ui.DateTimePicker;
-import net.micode.notes.ui.DateTimePicker.OnDateTimeChangedListener;
-
-import android.app.AlertDialog;
-import android.content.Context;
-import android.content.DialogInterface;
-import android.content.DialogInterface.OnClickListener;
-import android.text.format.DateFormat;
-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) {
-                mDate.set(Calendar.YEAR, year);
-                mDate.set(Calendar.MONTH, month);
-                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());
-    }
-
-    public void set24HourView(boolean is24HourView) {
-        mIs24HourView = is24HourView;
-    }
-
-    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 =
-            DateUtils.FORMAT_SHOW_YEAR |
-            DateUtils.FORMAT_SHOW_DATE |
-            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
-
-}

other/06_凌子杰_代码标注/ui/DropdownMenu.java

@@ -1,67 +0,0 @@
-/*
- * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package net.micode.notes.ui;
-
-import android.content.Context;
-import android.view.Menu;
-import android.view.MenuItem;
-import android.view.View;
-import android.view.View.OnClickListener;
-import android.widget.Button;
-import android.widget.PopupMenu;
-import android.widget.PopupMenu.OnMenuItemClickListener;
-
-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();
-            }
-        });
-    }
-
-    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
-}

other/06_凌子杰_代码标注/ui/FoldersListAdapter.java

@@ -1,87 +0,0 @@
-/*
- * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package net.micode.notes.ui;
-
-import android.content.Context;
-import android.database.Cursor;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.CursorAdapter;
-import android.widget.LinearLayout;
-import android.widget.TextView;
-
-import net.micode.notes.R;
-import net.micode.notes.data.Notes;
-import net.micode.notes.data.Notes.NoteColumns;
-
-
-public class FoldersListAdapter extends CursorAdapter {
-    //CursorAdapter是Cursor和ListView的接口
-    //FoldersListAdapter继承了CursorAdapter的类
-    //主要作用是便签数据库和用户的交互
-    //这里就是用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;
-
-    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);
-    }//创建一个文件夹，对于各文件夹中子标签的初始化
-
-    @Override
-    public void bindView(View view, Context context, Cursor cursor) {
-        if (view instanceof FolderListItem) {
-            String folderName = (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context
-                    .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);
-    }//根据数据库中标签的ID得到标签的各项内容
-
-    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);
-        }
-
-        public void bind(String name) {
-            mName.setText(name);
-        }
-    }
-
-}

other/06_凌子杰_代码标注/ui/NoteEditText.java

@@ -1,272 +0,0 @@
-/*
- * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package net.micode.notes.ui;
-
-import android.content.Context;
-import android.graphics.Rect;
-import android.text.Layout;
-import android.text.Selection;
-import android.text.Spanned;
-import android.text.TextUtils;
-import android.text.style.URLSpan;
-import android.util.AttributeSet;
-import android.util.Log;
-import android.view.ContextMenu;
-import android.view.KeyEvent;
-import android.view.MenuItem;
-import android.view.MenuItem.OnMenuItemClickListener;
-import android.view.MotionEvent;
-import android.widget.EditText;
-
-import net.micode.notes.R;
-
-import java.util.HashMap;
-import java.util.Map;
-//继承edittext，设置便签设置文本框
-public class NoteEditText extends EditText {
-    private static final String TAG = "NoteEditText";
-    private int mIndex;
-    private int mSelectionStartBeforeDelete;
-
-    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);
-        sSchemaActionResMap.put(SCHEME_HTTP, R.string.note_link_web);
-        sSchemaActionResMap.put(SCHEME_EMAIL, R.string.note_link_email);
-    }
-
-    /**
-     * Call by the {@link NoteEditActivity} to delete or add edit text
-     */
-    //在NoteEditActivity中删除或添加文本的操作，可以看做是一个文本是否被变的标记，英文注释已说明的很清楚
-    public interface OnTextViewChangeListener {
-        /**
-         * 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);
-
-        /**
-         * Hide or show item option when text change
-         */
-        void onTextChange(int index, boolean hasText);
-    }
-
-    private OnTextViewChangeListener mOnTextViewChangeListener;
-    //根据context设置文本
-    public NoteEditText(Context context) {
-        super(context, null);//用super引用父类变量
-        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;
-    }
-    //AttributeSet 百度了一下是自定义空控件属性，用于维护便签动态变化的属性
-    //初始化便签
-    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
-    }
-    //view里的函数，处理手机屏幕的所有事件
-    /*参数event为手机屏幕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、触摸的类型以及触摸的时间等。该对象会在用户触摸手机屏幕时被创建。*/
-    @Override
-    public boolean onTouchEvent(MotionEvent event) {
-        switch (event.getAction()) {
-            //重写了需要处理屏幕被按下的事件
-            case MotionEvent.ACTION_DOWN:
-            //跟新当前坐标值
-                int x = (int) event.getX();
-                int y = (int) event.getY();
-                x -= getTotalPaddingLeft();
-                y -= getTotalPaddingTop();
-                x += getScrollX();
-                y += getScrollY();
-                //用布局控件layout根据x,y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;
-        }
-
-        return super.onTouchEvent(event);
-    }
-    /*
-     * 函数功能：处理用户按下一个键盘按键时会触发 的事件
-     * 实现过程：如下注释
-     */
-    @Override
-    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：处理用户松开一个键盘按键时会触发 的事件
-     * 实现方式：如下注释
-     */
-    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2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OnTextViewChangeListener对KEYCODE_DEL按键情况的删除函数进行删除
-                        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2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);
-                    //当{@link KeyEvent#KEYCODE_ENTER}添加新文本
-                } 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
-     * 实现方式：如下注释
-     * 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) {
-            //若监听器已经建立
-            if (!focused && TextUtils.isEmpty(getText())) {
-                //获取到焦点并且文本不为空
-                mOnTextViewChangeListener.onTextChange(mIndex, false);
-                //mOnTextViewChangeListener子函数，置false隐藏事件选项
-            } else {
-                mOnTextViewChangeListener.onTextChange(mIndex, true);
-                //mOnTextViewChangeListener子函数，置true显示事件选项
-            }
-        }
-        //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：生成上下文菜单
-     * 函数实现：如下注释
-     */
-    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()) {
-                    //获取计划表中所有的key值
-                    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);
-    }
-}

other/06_凌子杰_代码标注/ui/NoteItemData.java

@@ -1,232 +0,0 @@
-/*
- * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package net.micode.notes.ui;
-
-import android.content.Context;
-import android.database.Cursor;
-import android.text.TextUtils;
-
-import net.micode.notes.data.Contact;
-import net.micode.notes.data.Notes;
-import net.micode.notes.data.Notes.NoteColumns;
-import net.micode.notes.tool.DataUtils;
-
-
-public class NoteItemData {
-    static final String [] PROJECTION = new String [] {
-        NoteColumns.ID,
-        NoteColumns.ALERTED_DATE,
-        NoteColumns.BG_COLOR_ID,
-        NoteColumns.CREATED_DATE,
-        NoteColumns.HAS_ATTACHMENT,
-        NoteColumns.MODIFIED_DATE,
-        NoteColumns.NOTES_COUNT,
-        NoteColumns.PARENT_ID,
-        NoteColumns.SNIPPET,
-        NoteColumns.TYPE,
-        NoteColumns.WIDGET_ID,
-        NoteColumns.WIDGET_TYPE,
-    };
-
-    private static final int ID_COLUMN                    = 0;
-    private static final int ALERTED_DATE_COLUMN          = 1;
-    private static final int BG_COLOR_ID_COLUMN           = 2;
-    private static final int CREATED_DATE_COLUMN          = 3;
-    private static final int HAS_ATTACHMENT_COLUMN        = 4;
-    private static final int MODIFIED_DATE_COLUMN         = 5;
-    private static final int NOTES_COUNT_COLUMN           = 6;
-    private static final int PARENT_ID_COLUMN             = 7;
-    private static final int SNIPPET_COLUMN               = 8;
-    private static final int TYPE_COLUMN                  = 9;
-    private static final int WIDGET_ID_COLUMN             = 10;
-    private static final int WIDGET_TYPE_COLUMN           = 11;
-
-    private long mId;
-    private long mAlertDate;
-    private int mBgColorId;
-    private long mCreatedDate;
-    private boolean mHasAttachment;
-    private long mModifiedDate;
-    private int mNotesCount;
-    private long mParentId;
-    private String mSnippet;
-    private int mType;
-    private int mWidgetId;
-    private int mWidgetType;
-    private String mName;
-    private String mPhoneNumber;
-
-    private boolean mIsLastItem;
-    private boolean mIsFirstItem;
-    private boolean mIsOnlyOneItem;
-    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);
-        mCreatedDate = cursor.getLong(CREATED_DATE_COLUMN);
-        mHasAttachment = (cursor.getInt(HAS_ATTACHMENT_COLUMN) > 0) ? true : false;
-        mModifiedDate = cursor.getLong(MODIFIED_DATE_COLUMN);
-        mNotesCount = cursor.getInt(NOTES_COUNT_COLUMN);
-        mParentId = cursor.getLong(PARENT_ID_COLUMN);
-        mSnippet = cursor.getString(SNIPPET_COLUMN);
-        mSnippet = mSnippet.replace(NoteEditActivity.TAG_CHECKED, "").replace(
-                NoteEditActivity.TAG_UNCHECKED, "");
-        mType = cursor.getInt(TYPE_COLUMN);
-        mWidgetId = cursor.getInt(WIDGET_ID_COLUMN);
-        mWidgetType = cursor.getInt(WIDGET_TYPE_COLUMN);
-        //初始化电话号码的信息
-        mPhoneNumber = "";
-        if (mParentId == Notes.ID_CALL_RECORD_FOLDER) {
-            mPhoneNumber = DataUtils.getCallNumberByNoteId(context.getContentResolver(), mId);
-            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;
-                }
-            }
-        }
-
-        if (mName == null) {
-            mName = "";
-        }
-        checkPostion(cursor);
-    }
-    //根据鼠标的位置设置标记，和位置
-    private void checkPostion(Cursor cursor) {
-        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”2个标记
-        mIsMultiNotesFollowingFolder = false;
-        mIsOneNoteFollowingFolder = false;
-        //主要是设置上诉2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()) {
-                //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) {
-                    //若光标满足系统或note格式
-                    if (cursor.getCount() > (position + 1)) {
-                        mIsMultiNotesFollowingFolder = true;
-                        //若是数据行数大于但前位置+1则设置成正确
-                    } else {
-                        mIsOneNoteFollowingFolder = true;
-                        //否则单一文件夹标记为true
-                    }
-                }
-                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;
-    }
-
-    public boolean isMultiFollowingFolder() {
-        return mIsMultiNotesFollowingFolder;
-    }
-
-    public boolean isLast() {
-        return mIsLastItem;
-    }
-
-    public String getCallName() {
-        return mName;
-    }
-
-    public boolean isFirst() {
-        return mIsFirstItem;
-    }
-
-    public boolean isSingle() {
-        return mIsOnlyOneItem;
-    }
-
-    public long getId() {
-        return mId;
-    }
-
-    public long getAlertDate() {
-        return mAlertDate;
-    }
-
-    public long getCreatedDate() {
-        return mCreatedDate;
-    }
-
-    public boolean hasAttachment() {
-        return mHasAttachment;
-    }
-
-    public long getModifiedDate() {
-        return mModifiedDate;
-    }
-
-    public int getBgColorId() {
-        return mBgColorId;
-    }
-
-    public long getParentId() {
-        return mParentId;
-    }
-
-    public int getNotesCount() {
-        return mNotesCount;
-    }
-
-    public long getFolderId () {
-        return mParentId;
-    }
-
-    public int getType() {
-        return mType;
-    }
-
-    public int getWidgetType() {
-        return mWidgetType;
-    }
-
-    public int getWidgetId() {
-        return mWidgetId;
-    }
-
-    public String getSnippet() {
-        return mSnippet;
-    }
-
-    public boolean hasAlert() {
-        return (mAlertDate > 0);
-    }
-    //若数据父id为保存至文件夹模式的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));
-    }
-
-    public static int getNoteType(Cursor cursor) {
-        return cursor.getInt(TYPE_COLUMN);
-    }
-}

other/06_刘峻豪_代码标注/ui/NotesListAdapter.java

@@ -1,274 +0,0 @@
-/*
- * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-
-package net.micode.notes.ui;
-
-import android.content.Context;
-import android.database.Cursor;
-import android.util.Log;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.CursorAdapter;
-
-
-import net.micode.notes.data.Notes;
-
-import java.util.Collection;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Iterator;
-
-
-/*
- * 功能：直译为便签表连接器，继承了CursorAdapter，它为cursor和ListView提供了连接的桥梁。
- *     所以NotesListAdapter实现的是鼠标和编辑便签链接的桥梁
- */
-public class NotesListAdapter extends CursorAdapter {
-    private static final String TAG = "NotesListAdapter";
-    private Context mContext;
-    private HashMap<Integer, Boolean> mSelectedIndex;
-    private int mNotesCount;    //便签数
-    private boolean mChoiceMode;   //选择模式标记
-
-    /*
-     * 桌面widget的属性，包括编号和类型
-     */
-    public static class AppWidgetAttribute {
-        public int widgetId;
-        public int widgetType;
-    };
-
-    /*
-     * 函数功能：初始化便签链接器
-     * 函数实现：根据传进来的内容设置相关变量
-     */
-    public NotesListAdapter(Context context) {
-        super(context, null);  //父类对象置空
-        mSelectedIndex = new HashMap<Integer, Boolean>();  //新建选项下标的hash表
-        mContext = context;
-        mNotesCount = 0;
-    }
-
-    @Override
-    /*
-     * 函数功能：新建一个视图来存储光标所指向的数据
-     * 函数实现：使用兄弟类NotesListItem新建一个项目选项
-     */
-    public View newView(Context context, Cursor cursor, ViewGroup parent) {
-        return new NotesListItem(context);
-    }
-
-    /*
-     * 函数功能：将已经存在的视图和鼠标指向的数据进行捆绑
-     * 函数实现：如下注释
-     */
-    @Override
-    public void bindView(View view, Context context, Cursor cursor) {
-        if (view instanceof NotesListItem) {
-            //若view是NotesListItem的一个实例
-            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
-     * 函数实现：如下注释
-     */
-    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：设置单项选项框
-     * 函数实现：重置下标并且根据参数mode设置选项
-     */
-    public void setChoiceMode(boolean mode) {
-        mSelectedIndex.clear();
-        mChoiceMode = mode;
-    }
-
-    /*
-     * 函数功能：选择全部选项
-     * 函数实现：如下注释
-     */
-    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) {
-                    setCheckedItem(i, checked);
-                }
-            }
-        }
-        //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：建立选择项的下标列表
-     * 函数实现：如下注释
-     */
-    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);
-                }
-                //则将id该下标假如选项集合中
-
-            }
-        }
-
-        return itemSet;
-    }
-
-    /*
-     * 函数功能：建立桌面Widget的选项表
-     * 函数实现：如下注释
-     */
-    public HashSet<AppWidgetAttribute> getSelectedWidget() {
-        HashSet<AppWidgetAttribute> itemSet = new HashSet<AppWidgetAttribute>();
-        for (Integer position : mSelectedIndex.keySet()) {
-            if (mSelectedIndex.get(position) == true) {
-                Cursor c = (Cursor) getItem(position);
-                //以上4句和getSelectedItemIds一样，不再重复
-                if (c != null) {
-                    //光标位置可用的话就建立新的Widget属性并编辑下标和类型，最后添加到选项集中
-                    AppWidgetAttribute widget = new AppWidgetAttribute();
-                    NoteItemData item = new NoteItemData(mContext, c);
-                    widget.widgetId = item.getWidgetId();
-                    widget.widgetType = item.getWidgetType();
-                    itemSet.add(widget);
-                    /**
-                     * Don't close cursor here, only the adapter could close it
-                     */
-                } else {
-                    Log.e(TAG, "Invalid cursor");
-                    return null;
-                }
-            }
-        }
-        return itemSet;
-    }
-
-    /*
-     * 函数功能：获取选项个数
-     * 函数实现：如下注释
-     */
-    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()) {
-                //若value值为真计数+1
-                count++;
-            }
-        }
-        return count;
-    }
-
-    /*
-     * 函数功能：判断是否全部选中
-     * 函数实现：如下注释
-     */
-    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
-     * 函数实现：通过传递的下标来确定
-     */
-    public boolean isSelectedItem(final int position) {
-        if (null == mSelectedIndex.get(position)) {
-            return false;
-        }
-        return mSelectedIndex.get(position);
-    }
-
-    @Override
-    /*
-     * 函数功能：在activity内容发生局部变动的时候回调该函数计算便签的数量
-     * 函数实现：如下注释
-     */
-    protected void onContentChanged() {
-        super.onContentChanged();
-        //执行基类函数
-        calcNotesCount();
-    }
-
-    @Override
-    /*
-     * 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
-     */
-    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
-        }
-    }
-}

other/06_刘峻豪_代码标注/ui/NotesListItem.java

@@ -1,148 +0,0 @@
-/*
- * 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.
- */
-
-/*
- * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package net.micode.notes.ui;
-
-import android.content.Context;
-import android.text.format.DateUtils;
-import android.view.View;
-import android.widget.CheckBox;
-import android.widget.ImageView;
-import android.widget.LinearLayout;
-import android.widget.TextView;
-
-import net.micode.notes.R;
-import net.micode.notes.data.Notes;
-import net.micode.notes.tool.DataUtils;
-import net.micode.notes.tool.ResourceParser.NoteItemBgResources;
-
-
-//创建便签列表项目选项
-public class NotesListItem extends LinearLayout {
-    private ImageView mAlert;//闹钟图片
-    private TextView mTitle;  //标题
-    private TextView mTime;   //时间
-    private TextView mCallName;    //
-    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);   //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);  ///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);
-        } else if (data.getParentId() == Notes.ID_CALL_RECORD_FOLDER) {
-            mCallName.setVisibility(View.VISIBLE);
-            mCallName.setText(data.getCallName());
-            mTitle.setTextAppearance(context,R.style.TextAppearanceSecondaryItem);
-            mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet()));
-            ///给闹钟进行相关设置
-            if (data.hasAlert()) {
-                mAlert.setImageResource(R.drawable.clock);//图片来源的设置
-                mAlert.setVisibility(View.VISIBLE);
-            } else {
-                mAlert.setVisibility(View.GONE);
-            }
-        } else {
-            mCallName.setVisibility(View.GONE);
-            mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem);
-            ///设置title格式
-            if (data.getType() == Notes.TYPE_FOLDER) {
-                mTitle.setText(data.getSnippet()
-                        + context.getString(R.string.format_folder_files_count,
-                        data.getNotesCount()));
-                mAlert.setVisibility(View.GONE);
-            } else {
-                mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet()));
-                if (data.hasAlert()) {
-                    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()) {//是最后一个数据
-                setBackgroundResource(NoteItemBgResources.getNoteBgLastRes(id));
-            } 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());
-        }
-    }
-    public NoteItemData getItemData() {
-        return mItemData;
-    }
-}

other/06_刘峻豪_代码标注/ui/NotesPreferenceActivity.java

@@ -1,546 +0,0 @@
-/*
- * 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.
- */
-/*
- * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package net.micode.notes.ui;
-
-import android.accounts.Account;
-import android.accounts.AccountManager;
-import android.app.ActionBar;
-import android.app.AlertDialog;
-import android.content.BroadcastReceiver;
-import android.content.ContentValues;
-import android.content.Context;
-import android.content.DialogInterface;
-import android.content.Intent;
-import android.content.IntentFilter;
-import android.content.SharedPreferences;
-import android.os.Bundle;
-import android.preference.Preference;
-import android.preference.Preference.OnPreferenceClickListener;
-import android.preference.PreferenceActivity;
-import android.preference.PreferenceCategory;
-import android.text.TextUtils;
-import android.text.format.DateFormat;
-import android.view.LayoutInflater;
-import android.view.Menu;
-import android.view.MenuItem;
-import android.view.View;
-import android.widget.Button;
-import android.widget.TextView;
-import android.widget.Toast;
-
-import net.micode.notes.R;
-import net.micode.notes.data.Notes;
-import net.micode.notes.data.Notes.NoteColumns;
-import net.micode.notes.gtask.remote.GTaskSyncService;
-
-/*
- *该类功能：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
-     *函数实现：如下注释
-     */
-    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listView
-        // 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
-     * 函数实现：如下注释
-     */
-    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;
-                    }
-                }
-            }
-        }
-
-        refreshUI();
-        //刷新标签界面
-    }
-
-    @Override
-    /*
-     * 函数功能：销毁一个activity
-     * 函数实现：如下注释
-     */
-    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();
-                }
-                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
-     *函数实现：如下注释
-     */
-    private void loadSyncButton() {
-        Button syncButton = (Button) findViewById(R.id.preference_sync_button);
-        TextView lastSyncTimeView = (TextView) findViewById(R.id.prefenerece_sync_status_textview);
-        //获取同步按钮控件和最终同步时间的的窗口
-        // set button state
-        //设置按钮的状态
-        if (GTaskSyncService.isSyncing()) {
-            //若是在同步状态下
-            syncButton.setText(getString(R.string.preferences_button_sync_cancel));
-            syncButton.setOnClickListener(new View.OnClickListener() {
-                public void onClick(View v) {
-                    GTaskSyncService.cancelSync(NotesPreferenceActivity.this);
-                }
-            });
-            //设置按钮显示的文本为“取消同步”以及监听器
-        } else {
-            syncButton.setText(getString(R.string.preferences_button_sync_immediately));
-            syncButton.setOnClickListener(new View.OnClickListener() {
-                public void onClick(View v) {
-                    GTaskSyncService.startSync(NotesPreferenceActivity.this);
-                }
-            });
-            //若是不同步则设置按钮显示的文本为“立即同步”以及对应监听器
-        }
-        syncButton.setEnabled(!TextUtils.isEmpty(getSyncAccountName(this)));
-        //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
-     * 函数实现：如下注释
-     */
-    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);
-        titleTextView.setText(getString(R.string.preferences_dialog_select_account_title));
-        TextView subtitleTextView = (TextView) titleView.findViewById(R.id.account_dialog_subtitle);
-        subtitleTextView.setText(getString(R.string.preferences_dialog_select_account_tips));
-        //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;
-            int index = 0;
-            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
-     * 函数实现：如下注释
-     */
-    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
-     * 函数实现：如下注释：
-     */
-    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
-
-
-            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() {
-                    ContentValues values = new ContentValues();
-                    values.put(NoteColumns.GTASK_ID, "");
-                    values.put(NoteColumns.SYNC_ID, 0);
-                    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
-     * 函数实现：如下注释：
-     */
-    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() {
-            public void run() {
-                ContentValues values = new ContentValues();
-                values.put(NoteColumns.GTASK_ID, "");
-                values.put(NoteColumns.SYNC_ID, 0);
-                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
-     * 函数实现：如下注释
-     */
-    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;
-        }
-    }
-}
-

other/06_江一阳_代码标注/gtask/data/MetaData.java

@@ -1,97 +0,0 @@
-/*
- * 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.gtask.data;
-
-// 导入所需的类和包
-import android.database.Cursor;
-import android.util.Log;
-
-import net.micode.notes.tool.GTaskStringUtils;
-
-import org.json.JSONException;
-import org.json.JSONObject;
-
-// MetaData类继承自Task类，用于处理与Google任务相关的元数据
-public class MetaData extends Task {
-    // 定义类的TAG，用于日志记录
-    private final static String TAG = MetaData.class.getSimpleName();
-    // 定义一个变量用于存储与Google任务相关的ID
-    private String mRelatedGid = null;
-
-    // 设置元数据方法，接收一个gid和一个metaInfo JSONObject对象
-    public void setMeta(String gid, JSONObject metaInfo) {
-        try {
-            // 将gid存储在metaInfo的JSON对象中
-            metaInfo.put(GTaskStringUtils.META_HEAD_GTASK_ID, gid);
-        } catch (JSONException e) {
-            // 记录错误日志
-            Log.e(TAG, "failed to put related gid");
-        }
-        // 记录错误日志
-        setNotes(metaInfo.toString());
-        // 设置元数据任务的名称
-        setName(GTaskStringUtils.META_NOTE_NAME);
-    }
-
-    // 获取与Google任务相关的ID的方法
-    public String getRelatedGid() {
-        return mRelatedGid;
-    }
-
-    // 重写isWorthSaving方法，判断是否值得保存
-    @Override
-    public boolean isWorthSaving() {
-        return getNotes() != null;
-    }
-
-    // 从远程JSON设置内容
-    @Override
-    public void setContentByRemoteJSON(JSONObject js) {
-        super.setContentByRemoteJSON(js);
-        if (getNotes() != null) {
-            try {
-                // 解析notes中的JSON字符串
-                JSONObject metaInfo = new JSONObject(getNotes().trim());
-                // 从JSON对象中获取与Google任务相关的ID
-                mRelatedGid = metaInfo.getString(GTaskStringUtils.META_HEAD_GTASK_ID);
-            } catch (JSONException e) {
-                // 记录警告日志
-                Log.w(TAG, "failed to get related gid");
-                mRelatedGid = null;
-            }
-        }
-    }
-
-    // 从本地JSON设置内容，但是不应该被调用，因此抛出异常
-    @Override
-    public void setContentByLocalJSON(JSONObject js) {
-        // this function should not be called
-        throw new IllegalAccessError("MetaData:setContentByLocalJSON should not be called");
-    }
-
-    // 从内容获取本地JSON，但是不应该被调用，因此抛出异常
-    @Override
-    public JSONObject getLocalJSONFromContent() {
-        throw new IllegalAccessError("MetaData:getLocalJSONFromContent should not be called");
-    }
-    // 获取同步操作，但是不应该被调用，因此抛出异常
-    @Override
-    public int getSyncAction(Cursor c) {
-        throw new IllegalAccessError("MetaData:getSyncAction should not be called");
-    }
-
-}

other/06_江一阳_代码标注/gtask/data/Node.java

@@ -1,113 +0,0 @@
-/*
- * 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.gtask.data;
-
-// 导入所需的类和包
-import android.database.Cursor;
-
-import org.json.JSONObject;
-
-// 定义一个抽象类Node，用于表示各种数据节点
-public abstract class Node {
-    // 定义同步操作的常量
-    public static final int SYNC_ACTION_NONE = 0;
-
-    public static final int SYNC_ACTION_ADD_REMOTE = 1;
-
-    public static final int SYNC_ACTION_ADD_LOCAL = 2;
-
-    public static final int SYNC_ACTION_DEL_REMOTE = 3;
-
-    public static final int SYNC_ACTION_DEL_LOCAL = 4;
-
-    public static final int SYNC_ACTION_UPDATE_REMOTE = 5;
-
-    public static final int SYNC_ACTION_UPDATE_LOCAL = 6;
-
-    public static final int SYNC_ACTION_UPDATE_CONFLICT = 7;
-
-    public static final int SYNC_ACTION_ERROR = 8;
-    // 定义节点的基本属性
-    private String mGid;
-
-    private String mName;
-
-    private long mLastModified;
-
-    private boolean mDeleted;
-
-    // 构造方法，初始化节点的属性
-    public Node() {
-        mGid = null;
-        mName = "";
-        mLastModified = 0;
-        mDeleted = false;
-    }
-
-    // 定义抽象方法，用于获取创建操作的JSON对象
-    public abstract JSONObject getCreateAction(int actionId);
-
-    // 定义抽象方法，用于获取更新操作的JSON对象
-    public abstract JSONObject getUpdateAction(int actionId);
-
-    // 定义抽象方法，用于根据远程JSON设置节点的内容
-    public abstract void setContentByRemoteJSON(JSONObject js);
-
-    // 定义抽象方法，用于根据本地JSON设置节点的内容
-    public abstract void setContentByLocalJSON(JSONObject js);
-
-    // 定义抽象方法，用于根据内容获取本地JSON
-    public abstract JSONObject getLocalJSONFromContent();
-
-    // 定义抽象方法，用于获取同步操作类型
-    public abstract int getSyncAction(Cursor c);
-
-    // 定义setter方法，用于设置节点的属性
-    public void setGid(String gid) {
-        this.mGid = gid;
-    }
-
-    public void setName(String name) {
-        this.mName = name;
-    }
-
-    public void setLastModified(long lastModified) {
-        this.mLastModified = lastModified;
-    }
-
-    public void setDeleted(boolean deleted) {
-        this.mDeleted = deleted;
-    }
-
-    // 定义getter方法，用于获取节点的属性
-    public String getGid() {
-        return this.mGid;
-    }
-
-    public String getName() {
-        return this.mName;
-    }
-
-    public long getLastModified() {
-        return this.mLastModified;
-    }
-
-    public boolean getDeleted() {
-        return this.mDeleted;
-    }
-
-}

other/06_江一阳_代码标注/gtask/data/SqlData.java

@@ -1,190 +0,0 @@
-/*
- * 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.gtask.data;
-// 导入所需的类和包
-import android.content.ContentResolver;
-import android.content.ContentUris;
-import android.content.ContentValues;
-import android.content.Context;
-import android.database.Cursor;
-import android.net.Uri;
-import android.util.Log;
-
-import net.micode.notes.data.Notes;
-import net.micode.notes.data.Notes.DataColumns;
-import net.micode.notes.data.Notes.DataConstants;
-import net.micode.notes.data.Notes.NoteColumns;
-import net.micode.notes.data.NotesDatabaseHelper.TABLE;
-import net.micode.notes.gtask.exception.ActionFailureException;
-
-import org.json.JSONException;
-import org.json.JSONObject;
-
-// 定义一个名为SqlData的类，用于表示SQL数据
-public class SqlData {
-    // 定义类的标签和常量
-    private static final String TAG = SqlData.class.getSimpleName();
-
-    private static final int INVALID_ID = -99999;
-    // 定义查询的投影和列索引常量
-    public static final String[] PROJECTION_DATA = new String[] {
-            DataColumns.ID, DataColumns.MIME_TYPE, DataColumns.CONTENT, DataColumns.DATA1,
-            DataColumns.DATA3
-    };
-
-    public static final int DATA_ID_COLUMN = 0;
-
-    public static final int DATA_MIME_TYPE_COLUMN = 1;
-
-    public static final int DATA_CONTENT_COLUMN = 2;
-
-    public static final int DATA_CONTENT_DATA_1_COLUMN = 3;
-
-    public static final int DATA_CONTENT_DATA_3_COLUMN = 4;
-    // 定义类的属性
-    private ContentResolver mContentResolver;
-
-    private boolean mIsCreate;
-
-    private long mDataId;
-
-    private String mDataMimeType;
-
-    private String mDataContent;
-
-    private long mDataContentData1;
-
-    private String mDataContentData3;
-
-    private ContentValues mDiffDataValues;
-    // 构造方法，初始化类的属性
-    public SqlData(Context context) {
-        mContentResolver = context.getContentResolver();
-        mIsCreate = true;
-        mDataId = INVALID_ID;
-        mDataMimeType = DataConstants.NOTE;
-        mDataContent = "";
-        mDataContentData1 = 0;
-        mDataContentData3 = "";
-        mDiffDataValues = new ContentValues();
-    }
-    // 基于现有的游标创建SqlData实例
-    public SqlData(Context context, Cursor c) {
-        mContentResolver = context.getContentResolver();
-        mIsCreate = false;
-        loadFromCursor(c);
-        mDiffDataValues = new ContentValues();
-    }
-    // 从游标加载数据
-    private void loadFromCursor(Cursor c) {
-        mDataId = c.getLong(DATA_ID_COLUMN);
-        mDataMimeType = c.getString(DATA_MIME_TYPE_COLUMN);
-        mDataContent = c.getString(DATA_CONTENT_COLUMN);
-        mDataContentData1 = c.getLong(DATA_CONTENT_DATA_1_COLUMN);
-        mDataContentData3 = c.getString(DATA_CONTENT_DATA_3_COLUMN);
-    }
-    // 从JSONObject设置内容
-    public void setContent(JSONObject js) throws JSONException {
-        long dataId = js.has(DataColumns.ID) ? js.getLong(DataColumns.ID) : INVALID_ID;
-        if (mIsCreate || mDataId != dataId) {
-            mDiffDataValues.put(DataColumns.ID, dataId);
-        }
-        mDataId = dataId;
-
-        String dataMimeType = js.has(DataColumns.MIME_TYPE) ? js.getString(DataColumns.MIME_TYPE)
-                : DataConstants.NOTE;
-        if (mIsCreate || !mDataMimeType.equals(dataMimeType)) {
-            mDiffDataValues.put(DataColumns.MIME_TYPE, dataMimeType);
-        }
-        mDataMimeType = dataMimeType;
-
-        String dataContent = js.has(DataColumns.CONTENT) ? js.getString(DataColumns.CONTENT) : "";
-        if (mIsCreate || !mDataContent.equals(dataContent)) {
-            mDiffDataValues.put(DataColumns.CONTENT, dataContent);
-        }
-        mDataContent = dataContent;
-
-        long dataContentData1 = js.has(DataColumns.DATA1) ? js.getLong(DataColumns.DATA1) : 0;
-        if (mIsCreate || mDataContentData1 != dataContentData1) {
-            mDiffDataValues.put(DataColumns.DATA1, dataContentData1);
-        }
-        mDataContentData1 = dataContentData1;
-
-        String dataContentData3 = js.has(DataColumns.DATA3) ? js.getString(DataColumns.DATA3) : "";
-        if (mIsCreate || !mDataContentData3.equals(dataContentData3)) {
-            mDiffDataValues.put(DataColumns.DATA3, dataContentData3);
-        }
-        mDataContentData3 = dataContentData3;
-    }
-    // 获取内容并将其转换为JSONObject
-    public JSONObject getContent() throws JSONException {
-        if (mIsCreate) {
-            Log.e(TAG, "it seems that we haven't created this in database yet");
-            return null;
-        }
-        JSONObject js = new JSONObject();
-        js.put(DataColumns.ID, mDataId);
-        js.put(DataColumns.MIME_TYPE, mDataMimeType);
-        js.put(DataColumns.CONTENT, mDataContent);
-        js.put(DataColumns.DATA1, mDataContentData1);
-        js.put(DataColumns.DATA3, mDataContentData3);
-        return js;
-    }
-    // 提交更改到数据库
-    public void commit(long noteId, boolean validateVersion, long version) {
-
-        if (mIsCreate) {
-            if (mDataId == INVALID_ID && mDiffDataValues.containsKey(DataColumns.ID)) {
-                mDiffDataValues.remove(DataColumns.ID);
-            }
-
-            mDiffDataValues.put(DataColumns.NOTE_ID, noteId);
-            Uri uri = mContentResolver.insert(Notes.CONTENT_DATA_URI, mDiffDataValues);
-            try {
-                mDataId = Long.valueOf(uri.getPathSegments().get(1));
-            } catch (NumberFormatException e) {
-                Log.e(TAG, "Get note id error :" + e.toString());
-                throw new ActionFailureException("create note failed");
-            }
-        } else {
-            if (mDiffDataValues.size() > 0) {
-                int result = 0;
-                if (!validateVersion) {
-                    result = mContentResolver.update(ContentUris.withAppendedId(
-                            Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues, null, null);
-                } else {
-                    result = mContentResolver.update(ContentUris.withAppendedId(
-                            Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues,
-                            " ? in (SELECT " + NoteColumns.ID + " FROM " + TABLE.NOTE
-                                    + " WHERE " + NoteColumns.VERSION + "=?)", new String[] {
-                                    String.valueOf(noteId), String.valueOf(version)
-                            });
-                }
-                if (result == 0) {
-                    Log.w(TAG, "there is no update. maybe user updates note when syncing");
-                }
-            }
-        }
-
-        mDiffDataValues.clear();
-        mIsCreate = false;
-    }
-    // 获取数据ID
-    public long getId() {
-        return mDataId;
-    }
-}

other/06_江一阳_代码标注/gtask/data/SqlNote.java

@@ -1,515 +0,0 @@
-/*
- * 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.
- */
-
-// 导入相关类和包
-package net.micode.notes.gtask.data;
-
-import android.appwidget.AppWidgetManager;
-import android.content.ContentResolver;
-import android.content.ContentValues;
-import android.content.Context;
-import android.database.Cursor;
-import android.net.Uri;
-import android.util.Log;
-
-import net.micode.notes.data.Notes;
-import net.micode.notes.data.Notes.DataColumns;
-import net.micode.notes.data.Notes.NoteColumns;
-import net.micode.notes.gtask.exception.ActionFailureException;
-import net.micode.notes.tool.GTaskStringUtils;
-import net.micode.notes.tool.ResourceParser;
-
-import org.json.JSONArray;
-import org.json.JSONException;
-import org.json.JSONObject;
-
-import java.util.ArrayList;
-
-// 定义 SqlNote 类
-public class SqlNote {
-    // 定义日志标签，用于调试和输出日志信息
-    private static final String TAG = SqlNote.class.getSimpleName();
-    // 定义一个无效的 ID 常量
-    private static final int INVALID_ID = -99999;
-    // 定义 PROJECTION_NOTE 数组，用于查询数据库时指定需要的列
-    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,
-            NoteColumns.NOTES_COUNT, NoteColumns.PARENT_ID, NoteColumns.SNIPPET, NoteColumns.TYPE,
-            NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE, NoteColumns.SYNC_ID,
-            NoteColumns.LOCAL_MODIFIED, NoteColumns.ORIGIN_PARENT_ID, NoteColumns.GTASK_ID,
-            NoteColumns.VERSION
-    };
-
-    public static final int ID_COLUMN = 0;
-
-    public static final int ALERTED_DATE_COLUMN = 1;
-
-    public static final int BG_COLOR_ID_COLUMN = 2;
-
-    public static final int CREATED_DATE_COLUMN = 3;
-
-    public static final int HAS_ATTACHMENT_COLUMN = 4;
-
-    public static final int MODIFIED_DATE_COLUMN = 5;
-
-    public static final int NOTES_COUNT_COLUMN = 6;
-
-    public static final int PARENT_ID_COLUMN = 7;
-
-    public static final int SNIPPET_COLUMN = 8;
-
-    public static final int TYPE_COLUMN = 9;
-
-    public static final int WIDGET_ID_COLUMN = 10;
-
-    public static final int WIDGET_TYPE_COLUMN = 11;
-
-    public static final int SYNC_ID_COLUMN = 12;
-
-    public static final int LOCAL_MODIFIED_COLUMN = 13;
-
-    public static final int ORIGIN_PARENT_ID_COLUMN = 14;
-
-    public static final int GTASK_ID_COLUMN = 15;
-
-    public static final int VERSION_COLUMN = 16;
-
-    private Context mContext;
-
-    private ContentResolver mContentResolver;
-
-    private boolean mIsCreate;
-
-    private long mId;
-
-    private long mAlertDate;
-
-    private int mBgColorId;
-
-    private long mCreatedDate;
-
-    private int mHasAttachment;
-
-    private long mModifiedDate;
-
-    private long mParentId;
-
-    private String mSnippet;
-
-    private int mType;
-
-    private int mWidgetId;
-
-    private int mWidgetType;
-
-    private long mOriginParent;
-
-    private long mVersion;
-
-    private ContentValues mDiffNoteValues;
-
-    private ArrayList<SqlData> mDataList;
-
-    // 构造方法：用于创建新的笔记对象
-    public SqlNote(Context context) {
-        mContext = context;
-        mContentResolver = context.getContentResolver();
-        mIsCreate = true;
-        mId = INVALID_ID;
-        mAlertDate = 0;
-        mBgColorId = ResourceParser.getDefaultBgId(context);
-        mCreatedDate = System.currentTimeMillis();
-        mHasAttachment = 0;
-        mModifiedDate = System.currentTimeMillis();
-        mParentId = 0;
-        mSnippet = "";
-        mType = Notes.TYPE_NOTE;
-        mWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID;
-        mWidgetType = Notes.TYPE_WIDGET_INVALIDE;
-        mOriginParent = 0;
-        mVersion = 0;
-        mDiffNoteValues = new ContentValues();
-        mDataList = new ArrayList<SqlData>();
-    }
-
-    // 构造方法：用于从数据库的 Cursor 加载笔记对象
-    public SqlNote(Context context, Cursor c) {
-        mContext = context;
-        mContentResolver = context.getContentResolver();
-        mIsCreate = false;
-        loadFromCursor(c);
-        mDataList = new ArrayList<SqlData>();
-        if (mType == Notes.TYPE_NOTE)
-            loadDataContent();
-        mDiffNoteValues = new ContentValues();
-    }
-
-    // 构造方法：通过笔记 ID 从数据库加载笔记对象
-    public SqlNote(Context context, long id) {
-        mContext = context;
-        mContentResolver = context.getContentResolver();
-        mIsCreate = false;
-        loadFromCursor(id);
-        mDataList = new ArrayList<SqlData>();
-        if (mType == Notes.TYPE_NOTE)
-            loadDataContent();
-        mDiffNoteValues = new ContentValues();
-
-    }
-
-    // 通过笔记 ID 从数据库加载笔记数据
-    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);
-            if (c != null) {
-                c.moveToNext();
-                loadFromCursor(c);
-            } else {
-                Log.w(TAG, "loadFromCursor: cursor = null");
-            }
-        } finally {
-            if (c != null)
-                c.close();
-        }
-    }
-
-    // 从 Cursor 加载 SqlNote 对象的数据
-    private void loadFromCursor(Cursor c) {
-        mId = c.getLong(ID_COLUMN);
-        mAlertDate = c.getLong(ALERTED_DATE_COLUMN);
-        mBgColorId = c.getInt(BG_COLOR_ID_COLUMN);
-        mCreatedDate = c.getLong(CREATED_DATE_COLUMN);
-        mHasAttachment = c.getInt(HAS_ATTACHMENT_COLUMN);
-        mModifiedDate = c.getLong(MODIFIED_DATE_COLUMN);
-        mParentId = c.getLong(PARENT_ID_COLUMN);
-        mSnippet = c.getString(SNIPPET_COLUMN);
-        mType = c.getInt(TYPE_COLUMN);
-        mWidgetId = c.getInt(WIDGET_ID_COLUMN);
-        mWidgetType = c.getInt(WIDGET_TYPE_COLUMN);
-        mVersion = c.getLong(VERSION_COLUMN);
-    }
-
-    // 加载笔记的数据内容
-    private void loadDataContent() {
-        Cursor c = null;
-        mDataList.clear();
-        try {
-            c = mContentResolver.query(Notes.CONTENT_DATA_URI, SqlData.PROJECTION_DATA,
-                    "(note_id=?)", new String[] {
-                            String.valueOf(mId)
-                    }, null);
-            if (c != null) {
-                if (c.getCount() == 0) {
-                    Log.w(TAG, "it seems that the note has not data");
-                    return;
-                }
-                while (c.moveToNext()) {
-                    SqlData data = new SqlData(mContext, c);
-                    mDataList.add(data);
-                }
-            } else {
-                Log.w(TAG, "loadDataContent: cursor = null");
-            }
-        } finally {
-            if (c != null)
-                c.close();
-        }
-    }
-
-    public boolean setContent(JSONObject js) {
-        try {
-            // 获取包含笔记信息的 JSON 对象
-            JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
-            if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_SYSTEM) {
-                Log.w(TAG, "cannot set system folder");
-            } else if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_FOLDER) {
-                // for folder we can only update the snnipet and type
-                String snippet = note.has(NoteColumns.SNIPPET) ? note
-                        .getString(NoteColumns.SNIPPET) : "";
-                if (mIsCreate || !mSnippet.equals(snippet)) {
-                    mDiffNoteValues.put(NoteColumns.SNIPPET, snippet);
-                }
-                mSnippet = snippet;
-
-                int type = note.has(NoteColumns.TYPE) ? note.getInt(NoteColumns.TYPE)
-                        : Notes.TYPE_NOTE;
-                if (mIsCreate || mType != type) {
-                    mDiffNoteValues.put(NoteColumns.TYPE, type);
-                }
-                mType = type;
-            } else if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_NOTE) {
-                JSONArray dataArray = js.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
-                long id = note.has(NoteColumns.ID) ? note.getLong(NoteColumns.ID) : INVALID_ID;
-                if (mIsCreate || mId != id) {
-                    mDiffNoteValues.put(NoteColumns.ID, id);
-                }
-                mId = id;
-
-                long alertDate = note.has(NoteColumns.ALERTED_DATE) ? note
-                        .getLong(NoteColumns.ALERTED_DATE) : 0;
-                if (mIsCreate || mAlertDate != alertDate) {
-                    mDiffNoteValues.put(NoteColumns.ALERTED_DATE, alertDate);
-                }
-                mAlertDate = alertDate;
-
-                int bgColorId = note.has(NoteColumns.BG_COLOR_ID) ? note
-                        .getInt(NoteColumns.BG_COLOR_ID) : ResourceParser.getDefaultBgId(mContext);
-                if (mIsCreate || mBgColorId != bgColorId) {
-                    mDiffNoteValues.put(NoteColumns.BG_COLOR_ID, bgColorId);
-                }
-                mBgColorId = bgColorId;
-
-                long createDate = note.has(NoteColumns.CREATED_DATE) ? note
-                        .getLong(NoteColumns.CREATED_DATE) : System.currentTimeMillis();
-                if (mIsCreate || mCreatedDate != createDate) {
-                    mDiffNoteValues.put(NoteColumns.CREATED_DATE, createDate);
-                }
-                mCreatedDate = createDate;
-
-                int hasAttachment = note.has(NoteColumns.HAS_ATTACHMENT) ? note
-                        .getInt(NoteColumns.HAS_ATTACHMENT) : 0;
-                if (mIsCreate || mHasAttachment != hasAttachment) {
-                    mDiffNoteValues.put(NoteColumns.HAS_ATTACHMENT, hasAttachment);
-                }
-                mHasAttachment = hasAttachment;
-
-                long modifiedDate = note.has(NoteColumns.MODIFIED_DATE) ? note
-                        .getLong(NoteColumns.MODIFIED_DATE) : System.currentTimeMillis();
-                if (mIsCreate || mModifiedDate != modifiedDate) {
-                    mDiffNoteValues.put(NoteColumns.MODIFIED_DATE, modifiedDate);
-                }
-                mModifiedDate = modifiedDate;
-
-                long parentId = note.has(NoteColumns.PARENT_ID) ? note
-                        .getLong(NoteColumns.PARENT_ID) : 0;
-                if (mIsCreate || mParentId != parentId) {
-                    mDiffNoteValues.put(NoteColumns.PARENT_ID, parentId);
-                }
-                mParentId = parentId;
-
-                String snippet = note.has(NoteColumns.SNIPPET) ? note
-                        .getString(NoteColumns.SNIPPET) : "";
-                if (mIsCreate || !mSnippet.equals(snippet)) {
-                    mDiffNoteValues.put(NoteColumns.SNIPPET, snippet);
-                }
-                mSnippet = snippet;
-
-                int type = note.has(NoteColumns.TYPE) ? note.getInt(NoteColumns.TYPE)
-                        : Notes.TYPE_NOTE;
-                if (mIsCreate || mType != type) {
-                    mDiffNoteValues.put(NoteColumns.TYPE, type);
-                }
-                mType = type;
-
-                int widgetId = note.has(NoteColumns.WIDGET_ID) ? note.getInt(NoteColumns.WIDGET_ID)
-                        : AppWidgetManager.INVALID_APPWIDGET_ID;
-                if (mIsCreate || mWidgetId != widgetId) {
-                    mDiffNoteValues.put(NoteColumns.WIDGET_ID, widgetId);
-                }
-                mWidgetId = widgetId;
-
-                int widgetType = note.has(NoteColumns.WIDGET_TYPE) ? note
-                        .getInt(NoteColumns.WIDGET_TYPE) : Notes.TYPE_WIDGET_INVALIDE;
-                if (mIsCreate || mWidgetType != widgetType) {
-                    mDiffNoteValues.put(NoteColumns.WIDGET_TYPE, widgetType);
-                }
-                mWidgetType = widgetType;
-
-                long originParent = note.has(NoteColumns.ORIGIN_PARENT_ID) ? note
-                        .getLong(NoteColumns.ORIGIN_PARENT_ID) : 0;
-                if (mIsCreate || mOriginParent != originParent) {
-                    mDiffNoteValues.put(NoteColumns.ORIGIN_PARENT_ID, originParent);
-                }
-                mOriginParent = originParent;
-
-                for (int i = 0; i < dataArray.length(); i++) {
-                    JSONObject data = dataArray.getJSONObject(i);
-                    SqlData sqlData = null;
-                    if (data.has(DataColumns.ID)) {
-                        long dataId = data.getLong(DataColumns.ID);
-                        for (SqlData temp : mDataList) {
-                            if (dataId == temp.getId()) {
-                                sqlData = temp;
-                            }
-                        }
-                    }
-
-                    if (sqlData == null) {
-                        sqlData = new SqlData(mContext);
-                        mDataList.add(sqlData);
-                    }
-
-                    sqlData.setContent(data);
-                }
-            }
-        } catch (JSONException e) {
-            Log.e(TAG, e.toString());
-            e.printStackTrace();
-            return false;
-        }
-        return true;
-    }
-
-    public JSONObject getContent() {
-        try {
-            JSONObject js = new JSONObject();
-
-            if (mIsCreate) {
-                Log.e(TAG, "it seems that we haven't created this in database yet");
-                return null;
-            }
-
-            JSONObject note = new JSONObject();
-            if (mType == Notes.TYPE_NOTE) {
-                note.put(NoteColumns.ID, mId);
-                note.put(NoteColumns.ALERTED_DATE, mAlertDate);
-                note.put(NoteColumns.BG_COLOR_ID, mBgColorId);
-                note.put(NoteColumns.CREATED_DATE, mCreatedDate);
-                note.put(NoteColumns.HAS_ATTACHMENT, mHasAttachment);
-                note.put(NoteColumns.MODIFIED_DATE, mModifiedDate);
-                note.put(NoteColumns.PARENT_ID, mParentId);
-                note.put(NoteColumns.SNIPPET, mSnippet);
-                note.put(NoteColumns.TYPE, mType);
-                note.put(NoteColumns.WIDGET_ID, mWidgetId);
-                note.put(NoteColumns.WIDGET_TYPE, mWidgetType);
-                note.put(NoteColumns.ORIGIN_PARENT_ID, mOriginParent);
-                js.put(GTaskStringUtils.META_HEAD_NOTE, note);
-
-                JSONArray dataArray = new JSONArray();
-                for (SqlData sqlData : mDataList) {
-                    JSONObject data = sqlData.getContent();
-                    if (data != null) {
-                        dataArray.put(data);
-                    }
-                }
-                js.put(GTaskStringUtils.META_HEAD_DATA, dataArray);
-            } else if (mType == Notes.TYPE_FOLDER || mType == Notes.TYPE_SYSTEM) {
-                note.put(NoteColumns.ID, mId);
-                note.put(NoteColumns.TYPE, mType);
-                note.put(NoteColumns.SNIPPET, mSnippet);
-                js.put(GTaskStringUtils.META_HEAD_NOTE, note);
-            }
-
-            return js;
-        } catch (JSONException e) {
-            Log.e(TAG, e.toString());
-            e.printStackTrace();
-        }
-        return null;
-    }
-
-    public void setParentId(long id) {
-        mParentId = id;
-        mDiffNoteValues.put(NoteColumns.PARENT_ID, id);
-    }
-
-    public void setGtaskId(String gid) {
-        mDiffNoteValues.put(NoteColumns.GTASK_ID, gid);
-    }
-
-    public void setSyncId(long syncId) {
-        mDiffNoteValues.put(NoteColumns.SYNC_ID, syncId);
-    }
-
-    public void resetLocalModified() {
-        mDiffNoteValues.put(NoteColumns.LOCAL_MODIFIED, 0);
-    }
-
-    public long getId() {
-        return mId;
-    }
-
-    public long getParentId() {
-        return mParentId;
-    }
-
-    public String getSnippet() {
-        return mSnippet;
-    }
-
-    public boolean isNoteType() {
-        return mType == Notes.TYPE_NOTE;
-    }
-
-    public void commit(boolean validateVersion) {
-        if (mIsCreate) {
-            if (mId == INVALID_ID && mDiffNoteValues.containsKey(NoteColumns.ID)) {
-                mDiffNoteValues.remove(NoteColumns.ID);
-            }
-
-            Uri uri = mContentResolver.insert(Notes.CONTENT_NOTE_URI, mDiffNoteValues);
-            try {
-                mId = Long.valueOf(uri.getPathSegments().get(1));
-            } catch (NumberFormatException e) {
-                Log.e(TAG, "Get note id error :" + e.toString());
-                throw new ActionFailureException("create note failed");
-            }
-            if (mId == 0) {
-                throw new IllegalStateException("Create thread id failed");
-            }
-
-            if (mType == Notes.TYPE_NOTE) {
-                for (SqlData sqlData : mDataList) {
-                    sqlData.commit(mId, false, -1);
-                }
-            }
-        } else {
-            if (mId <= 0 && mId != Notes.ID_ROOT_FOLDER && mId != Notes.ID_CALL_RECORD_FOLDER) {
-                Log.e(TAG, "No such note");
-                throw new IllegalStateException("Try to update note with invalid id");
-            }
-            if (mDiffNoteValues.size() > 0) {
-                mVersion++;
-                int result = 0;
-                if (!validateVersion) {
-                    result = mContentResolver.update(Notes.CONTENT_NOTE_URI, mDiffNoteValues, "("
-                            + NoteColumns.ID + "=?)",
-                            new String[] {
-                                    String.valueOf(mId)
-                            });
-                } else {
-                    result = mContentResolver.update(Notes.CONTENT_NOTE_URI, mDiffNoteValues, "("
-                            + NoteColumns.ID + "=?) AND (" + NoteColumns.VERSION + "<=?)",
-                            new String[] {
-                                    String.valueOf(mId), String.valueOf(mVersion)
-                            });
-                }
-                if (result == 0) {
-                    Log.w(TAG, "there is no update. maybe user updates note when syncing");
-                }
-            }
-
-            if (mType == Notes.TYPE_NOTE) {
-                for (SqlData sqlData : mDataList) {
-                    sqlData.commit(mId, validateVersion, mVersion);
-                }
-            }
-        }
-
-        // refresh local info
-        loadFromCursor(mId);
-        if (mType == Notes.TYPE_NOTE)
-            loadDataContent();
-
-        mDiffNoteValues.clear();
-        mIsCreate = false;
-    }
-}

other/07_陈七源_代码标注/model/Note.java

@@ -1,456 +0,0 @@
-/*
- * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package net.micode.notes.model;
-import android.content.ContentProviderOperation;
-import android.content.ContentProviderResult;
-import android.content.ContentUris;
-import android.content.ContentValues;
-import android.content.Context;
-import android.content.OperationApplicationException;
-import android.net.Uri;
-import android.os.RemoteException;
-import android.util.Log;
-
-import net.micode.notes.data.Notes;
-import net.micode.notes.data.Notes.CallNote;
-import net.micode.notes.data.Notes.DataColumns;
-import net.micode.notes.data.Notes.NoteColumns;
-import net.micode.notes.data.Notes.TextNote;
-
-import java.util.ArrayList;
-
-
-public class Note {
-    private ContentValues mNoteDiffValues;
-    private NoteData mNoteData;
-    private static final String TAG = "Note";
-    /**
-     * 获取新笔记的唯一标识符
-     * @param context 上下文对象
-     * @param folderId 新建笔记所属文件夹的id
-     * @return 新建笔记的唯一标识符
-     */
-    public static synchronized long getNewNoteId(Context context, long folderId) {
-        // 创建一个新的ContentValues对象，并设置相关键值对
-        ContentValues values = new ContentValues();
-        long createdTime = System.currentTimeMillis(); // 获取当前时间作为创建时间
-        values.put(NoteColumns.CREATED_DATE, createdTime); // 存入创建时间
-        values.put(NoteColumns.MODIFIED_DATE, createdTime); // 存入修改时间（初始与创建时间相同）
-        values.put(NoteColumns.TYPE, Notes.TYPE_NOTE); // 存入笔记类型
-        values.put(NoteColumns.LOCAL_MODIFIED, 1); // 存入本地修改状态
-        values.put(NoteColumns.PARENT_ID, folderId); // 存入所属文件夹id
-
-        // 向数据库中插入新笔记数据，并获取包含新建笔记Uri的对象uri
-        Uri uri = context.getContentResolver().insert(Notes.CONTENT_NOTE_URI, values);
-
-        long noteId = 0;
-        try {
-            // 从uri中获得新建笔记的id，即路径segments的第二个元素，并将其转换为long类型返回
-            noteId = Long.valueOf(uri.getPathSegments().get(1));
-        } catch (NumberFormatException e) {
-            // 如果获取不到这个id或者它等于-1，则会抛出相应的异常
-            Log.e(TAG, "Get note id error :" + e.toString());
-            noteId = 0;
-        }
-        if (noteId == -1) {
-            throw new IllegalStateException("Wrong note id:" + noteId);
-        }
-        return noteId;
-    }
-
-    /**
-     * Note类的构造函数，用于初始化对象
-     * 该代码定义了一个名为"Note"的类的构造函数。这个类可能是一个笔记应用程序的一部分，用于表示一个笔记。
-     */
-    public Note() {
-        // 创建一个ContentValues对象，用于保存笔记中改变的值，即笔记已经被修改但还没同步到数据库
-        mNoteDiffValues = new ContentValues();
-        // 创建一个NoteData对象，用于保存笔记的所有数据，包括标题、正文、颜色等
-        mNoteData = new NoteData();
-    }
-
-
-    /**
-     * 设置笔记的key-value值
-     * @param key 键名
-     * @param value 键值
-     *
-     *              在构造函数中，首先创建一个空的ContentValues对象mNoteDiffValues，用于保存笔记中改变的值，因为当我们修改笔记后并不会立即同步到数据库，而是需要等待一段时间或者手动进行同步。接着创建一个NoteData对象mNoteData，用于保存笔记的所有数据，包括标题、正文、颜色等。
-     *
-     *
-     */
-    public void setNoteValue(String key, String value) {
-        // 向ContentValues对象中添加键值对
-        mNoteDiffValues.put(key, value);
-        // 将本地修改状态设置为1，表示笔记已经被修改但还没同步到数据库
-        mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
-        // 将修改时间设置为当前时间
-        mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
-    }
-
-
-    /**
-     * 设置笔记文本数据
-     *
-     * @param key   一个字符串类型的键，用于标识要设置的文本数据类型。例如："title"、"content"等。
-     * @param value 一个字符串类型的值，表示要设置的文本数据内容。例如：标题或正文内容等。
-     *
-     * 在构造函数中，首先创建一个空的ContentValues对象mNoteDiffValues，用于保存笔记中改变的值。因为当我们修改笔记后并不会立即同步到数据库，而是需要等待一段时间或者手动进行同步。接着创建一个NoteData对象mNoteData，用于保存笔记的所有数据，包括标题、正文、颜色等。
-     */
-    public void setTextData(String key, String value) {
-        // 调用mNoteData对象的setTextData方法，将指定键（key）和值（value）添加到笔记的文本数据中
-        mNoteData.setTextData(key, value);
-    }
-
-    /**
-     * 设置笔记文本数据id
-     *
-     * @param id    一个长整型的值，表示要设置的笔记文本数据的id。
-     *
-     * 该函数用于将指定的长整型数值作为笔记文本数据的id进行设置。
-     * mNoteData是在类构造函数中创建的NoteData对象，通过调用它的setTextDataId方法，可以设置笔记的文本数据id。
-     */
-    public void setTextDataId(long id) {
-        // 调用mNoteData对象的setTextDataId方法，将指定的长整型数值作为笔记文本数据的id进行设置
-        mNoteData.setTextDataId(id);
-    }
-
-
-
-    /**
-     * 获取笔记文本数据id
-     *
-     * @return 一个长整型的值，表示当前笔记文本数据的id。
-     *
-     * 该函数用于从当前Note对象中获取保存的笔记文本数据的id。
-     * mNoteData是在类构造函数中创建的NoteData对象，其中mTextDataId是NoteData类成员变量，用于保存笔记文本数据的id。
-     */
-    public long getTextDataId() {
-        // 返回mNoteData对象中保存的笔记文本数据的id
-        return mNoteData.mTextDataId;
-    }
-
-
-    /**
-     * 设置笔记的通话记录id
-     *
-     * @param id 一个长整型的值，表示要设置的笔记通话记录的id。
-     *
-     * 该函数用于将指定的长整型数值作为笔记的通话记录id进行设置。
-     * mNoteData是在类构造函数中创建的NoteData对象，通过调用它的setCallDataId方法，可以设置笔记的通话记录id。
-     */
-    public void setCallDataId(long id) {
-        // 调用mNoteData对象的setCallDataId方法，将指定的长整型数值作为笔记的通话记录id进行设置
-        mNoteData.setCallDataId(id);
-    }
-
-
-    /**
-     * 设置笔记通话记录数据
-     *
-     * @param key   一个字符串类型的键，用于标识要设置的通话记录数据类型。例如："name"、"number"等。
-     * @param value 一个字符串类型的值，表示要设置的通话记录数据内容。例如：联系人姓名或电话号码等。
-     *
-     * 该函数用于向当前Note对象中添加指定的通话记录数据。
-     * mNoteData是在类构造函数中创建的NoteData对象，通过调用它的setCallData方法，可以将指定的键/值对添加到笔记的通话记录数据中。
-     */
-    public void setCallData(String key, String value) {
-        // 调用mNoteData对象的setCallData方法，将指定键（key）和值（value）添加到笔记的通话记录数据中
-        mNoteData.setCallData(key, value);
-    }
-
-
-    /**
-     * 检查笔记是否已经被本地修改
-     *
-     * @return 一个布尔值，表示当前笔记是否已经被本地修改。
-     *
-     * 该函数用于检查当前Note对象是否已经被本地修改。它会检查mNoteDiffValues和mNoteData对象，
-     * 如果它们中的任意一个在本地被修改过，则返回true；否则返回false。
-     */
-    public boolean isLocalModified() {
-        // 判断mNoteDiffValues对象是否包含数据，或者mNoteData对象中是否有数据被本地修改。
-        return mNoteDiffValues.size() > 0 || mNoteData.isLocalModified();
-    }
-
-    /**
-     * 同步笔记数据到本地数据库
-     *
-     * @param context 一个Context对象，用于访问应用程序的内容提供器。
-     * @param noteId 一个长整型的值，表示要同步的笔记ID。
-     *
-     * @return 一个布尔值，表示笔记是否成功同步到本地数据库。
-     *
-     * 该函数用于将当前Note对象保存到本地数据库中。如果当前Note对象没有被本地修改，则直接返回true；
-     * 否则，使用ContentResolver对象将mNoteDiffValues中保存的数值更新到NoteColumns.LOCAL_MODIFIED和NoteColumns.MODIFIED_DATE字段上。
-     * 如果更新失败，则在日志中记录错误信息，并返回false；否则，清空mNoteDiffValues中的数据，并将mNoteData中的数据保存到本地数据库中。
-     * 如果保存失败，则返回false；否则，返回true。
-     */
-    public boolean syncNote(Context context, long noteId) {
-        // 检查noteId参数是否合法，如果小于等于0，则抛出IllegalArgumentException异常
-        if (noteId <= 0) {
-            throw new IllegalArgumentException("Wrong note id:" + noteId);
-        }
-
-        // 如果当前Note对象没有被本地修改，则直接返回true
-        if (!isLocalModified()) {
-            return true;
-        }
-
-        // 使用ContentResolver对象将mNoteDiffValues中保存的数值更新到NoteColumns.LOCAL_MODIFIED和NoteColumns.MODIFIED_DATE字段上
-        if (context.getContentResolver().update(
-                ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), mNoteDiffValues, null,
-                null) == 0) {
-            // 如果更新失败，则在日志中记录错误信息
-            Log.e(TAG, "Update note error, should not happen");
-            // Do not return, fall through
-        }
-
-        // 清空mNoteDiffValues中的数据
-        mNoteDiffValues.clear();
-
-        // 将mNoteData中的数据保存到本地数据库中
-        if (mNoteData.isLocalModified()
-                && (mNoteData.pushIntoContentResolver(context, noteId) == null)) {
-            // 如果保存失败，则返回false
-            return false;
-        }
-
-        // 如果保存成功，则返回true
-        return true;
-    }
-
-
-    private class NoteData {
-        private long mTextDataId;
-
-        private ContentValues mTextDataValues;
-
-        private long mCallDataId;
-
-        private ContentValues mCallDataValues;
-
-        private static final String TAG = "NoteData";
-
-        /**
-         * 构造函数
-         *
-         * 该函数用于创建一个新的NoteData对象，并初始化mTextDataValues、mCallDataValues、mTextDataId和mCallDataId成员变量。
-         * mTextDataValues和mCallDataValues对象分别用于保存笔记的文本数据和通话记录数据。
-         * mTextDataId和mCallDataId分别表示当前笔记的文本数据ID和通话记录数据ID，初始值为0。
-         */
-        public NoteData() {
-            // 创建一个新的ContentValues对象mTextDataValues，用于保存笔记的文本数据
-            mTextDataValues = new ContentValues();
-            // 创建一个新的ContentValues对象mCallDataValues，用于保存笔记的通话记录数据
-            mCallDataValues = new ContentValues();
-            // 将mTextDataId和mCallDataId的初始值设置为0
-            mTextDataId = 0;
-            mCallDataId = 0;
-        }
-
-
-        /**
-         * 检查笔记数据是否已经被本地修改
-         *
-         * @return 一个布尔值，表示当前笔记数据是否已经被本地修改。
-         *
-         * 该函数用于检查当前NoteData对象是否已经被本地修改。它会检查mTextDataValues和mCallDataValues对象，
-         * 如果它们中的任意一个在本地被修改过，则返回true；否则返回false。
-         */
-        boolean isLocalModified() {
-            // 判断mTextDataValues和mCallDataValues对象是否包含数据，如果有数据被本地修改过，则返回true
-            return mTextDataValues.size() > 0 || mCallDataValues.size() > 0;
-        }
-
-        /**
-         * 设置笔记的文本数据id
-         *
-         * @param id 一个长整型的值，表示要设置的笔记文本数据的id。
-         *
-         * 该函数用于将指定的长整型数值作为笔记的文本数据id进行设置。如果指定的id小于等于0，则抛出IllegalArgumentException异常。
-         * mTextDataId是NoteData类成员变量，用于保存笔记文本数据的ID。
-         */
-        void setTextDataId(long id) {
-            // 如果指定的id小于等于0，则抛出IllegalArgumentException异常
-            if(id <= 0) {
-                throw new IllegalArgumentException("Text data id should larger than 0");
-            }
-            // 将指定的长整型数值作为笔记的文本数据id进行设置
-            mTextDataId = id;
-        }
-
-
-        /**
-         * 设置笔记的通话记录数据id
-         *
-         * @param id 一个长整型的值，表示要设置的笔记通话记录数据的id。
-         *
-         * 该函数用于将指定的长整型数值作为笔记的通话记录数据id进行设置。如果指定的id小于等于0，
-         * 则抛出IllegalArgumentException异常。
-         * mCallDataId是NoteData类成员变量，用于保存笔记的通话记录数据ID。
-         */
-        void setCallDataId(long id) {
-            // 如果指定的id小于等于0，则抛出IllegalArgumentException异常
-            if (id <= 0) {
-                throw new IllegalArgumentException("Call data id should larger than 0");
-            }
-            // 将指定的长整型数值作为笔记的通话记录数据id进行设置
-            mCallDataId = id;
-        }
-
-
-        /**
-         * 设置笔记的通话记录数据
-         *
-         * @param key 一个字符串，表示要设置的通话记录数据的键。
-         * @param value 一个字符串，表示要设置的通话记录数据的值。
-         *
-         * 该函数用于将指定的字符串作为笔记的通话记录数据进行设置。它会将键值对保存到mCallDataValues对象中，并将NoteColumns.LOCAL_MODIFIED和NoteColumns.MODIFIED_DATE字段的值更新为1和当前时间戳，
-         * 表示笔记已被本地修改过。
-         */
-        void setCallData(String key, String value) {
-            // 将键值对保存到mCallDataValues对象中
-            mCallDataValues.put(key, value);
-            // 将NoteColumns.LOCAL_MODIFIED字段的值设置为1，表示笔记已被本地修改过
-            mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
-            // 将NoteColumns.MODIFIED_DATE字段的值更新为当前时间戳，表示笔记最近一次被修改的时间
-            mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
-        }
-
-
-        /**
-         * 设置笔记的文本数据
-         *
-         * @param key 一个字符串，表示要设置的文本数据的键。
-         * @param value 一个字符串，表示要设置的文本数据的值。
-         *
-         * 该函数用于将指定的字符串作为笔记的文本数据进行设置。它会将键值对保存到mTextDataValues对象中，并将NoteColumns.LOCAL_MODIFIED和NoteColumns.MODIFIED_DATE字段的值更新为1和当前时间戳，
-         * 表示笔记已被本地修改过。
-         */
-        void setTextData(String key, String value) {
-            // 将键值对保存到mTextDataValues对象中
-            mTextDataValues.put(key, value);
-            // 将NoteColumns.LOCAL_MODIFIED字段的值设置为1，表示笔记已被本地修改过
-            mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
-            // 将NoteColumns.MODIFIED_DATE字段的值更新为当前时间戳，表示笔记最近一次被修改的时间
-            mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
-        }
-
-
-        /**
-         * 将笔记数据插入ContentResolver中
-         *
-         * @param context Context对象，表示当前应用程序的上下文环境。
-         * @param noteId 一个长整型数值，表示要插入的笔记的id。
-         *
-         * @return 返回插入成功的Uri对象，如果插入失败则返回null。
-         *
-         * 该函数用于将当前NoteData对象保存到ContentResolver中。它会将mTextDataValues和mCallDataValues对象中的数据保存到ContentResolver中，并更新NoteColumns.LOCAL_MODIFIED和NoteColumns.MODIFIED_DATE字段的值为0和当前时间戳，
-         * 表示笔记已被同步到云端。
-         */
-        Uri pushIntoContentResolver(Context context, long noteId) {
-            /**
-             * 检查noteId是否合法
-             */
-            if (noteId <= 0) {
-                throw new IllegalArgumentException("Wrong note id:" + noteId);
-            }
-
-            // 初始化operationList列表和builder对象
-            ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
-            ContentProviderOperation.Builder builder = null;
-
-            // 如果mTextDataValues对象不为空，则将其中的数据保存到ContentResolver中
-            if(mTextDataValues.size() > 0) {
-                // 为mTextDataValues对象添加笔记id
-                mTextDataValues.put(DataColumns.NOTE_ID, noteId);
-                if (mTextDataId == 0) {
-                    // 如果mTextDataId为0，则表明当前笔记没有文本数据，需要进行插入操作
-                    mTextDataValues.put(DataColumns.MIME_TYPE, TextNote.CONTENT_ITEM_TYPE);
-                    // 通过ContentResolver插入数据，并获取插入的Uri对象
-                    Uri uri = context.getContentResolver().insert(Notes.CONTENT_DATA_URI,
-                            mTextDataValues);
-                    try {
-                        // 解析Uri中的id值，并将其设置为mTextDataId
-                        setTextDataId(Long.valueOf(uri.getPathSegments().get(1)));
-                    } catch (NumberFormatException e) {
-                        Log.e(TAG, "Insert new text data fail with noteId" + noteId);
-                        // 插入失败，清空mTextDataValues，并返回null
-                        mTextDataValues.clear();
-                        return null;
-                    }
-                } else {
-                    // 如果mTextDataId不为0，则表明当前笔记已经有文本数据，需要进行更新操作
-                    builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId(
-                            Notes.CONTENT_DATA_URI, mTextDataId));
-                    builder.withValues(mTextDataValues);
-                    operationList.add(builder.build());
-                }
-                // 清空mTextDataValues对象
-                mTextDataValues.clear();
-            }
-
-            // 如果mCallDataValues对象不为空，则将其中的数据保存到ContentResolver中
-            if(mCallDataValues.size() > 0) {
-                // 为mCallDataValues对象添加笔记id
-                mCallDataValues.put(DataColumns.NOTE_ID, noteId);
-                if (mCallDataId == 0) {
-                    // 如果mCallDataId为0，则表明当前笔记没有通话记录数据，需要进行插入操作
-                    mCallDataValues.put(DataColumns.MIME_TYPE, CallNote.CONTENT_ITEM_TYPE);
-                    // 通过ContentResolver插入数据，并获取插入的Uri对象
-                    Uri uri = context.getContentResolver().insert(Notes.CONTENT_DATA_URI,
-                            mCallDataValues);
-                    try {
-                        // 解析Uri中的id值，并将其设置为mCallDataId
-                        setCallDataId(Long.valueOf(uri.getPathSegments().get(1)));
-                    } catch (NumberFormatException e) {
-                        Log.e(TAG, "Insert new call data fail with noteId" + noteId);
-                        // 插入失败，清空mCallDataValues，并返回null
-                        mCallDataValues.clear();
-                        return null;
-                    }
-                } else {
-                    // 如果mCallDataId不为0，则表明当前笔记已经有通话记录数据，需要进行更新操作
-                    builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId(
-                            Notes.CONTENT_DATA_URI, mCallDataId));
-                    builder.withValues(mCallDataValues);
-                    operationList.add(builder.build());
-                }
-                // 清空mCallDataValues对象
-                mCallDataValues.clear();
-            }
-            if (operationList.size() > 0) { // 如果操作列表中有操作
-                try {
-                    // 调用 ContentResolver 的 applyBatch 方法执行操作
-                    ContentProviderResult[] results = context.getContentResolver().applyBatch(
-                            Notes.AUTHORITY, operationList);
-                    // 判断操作是否成功，并返回对应的 Uri
-                    return (results == null || results.length == 0 || results[0] == null) ? null
-                            : ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId);
-                } catch (RemoteException e) { // 捕获 RemoteException 异常
-                    Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); // 记录异常信息到日志
-                    return null; // 返回 null
-                } catch (OperationApplicationException e) { // 捕获 OperationApplicationException 异常
-                    Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); // 记录异常信息到日志
-                    return null; // 返回 null
-                }
-            }
-            return null; // 如果操作列表为空，则返回 null
-        }
-    }
-}

other/07_陈七源_代码标注/model/WorkingNote.java

@@ -1,629 +0,0 @@
-/*
- * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package net.micode.notes.model;
-
-import android.appwidget.AppWidgetManager;
-import android.content.ContentUris;
-import android.content.Context;
-import android.database.Cursor;
-import android.text.TextUtils;
-import android.util.Log;
-
-import net.micode.notes.data.Notes;
-import net.micode.notes.data.Notes.CallNote;
-import net.micode.notes.data.Notes.DataColumns;
-import net.micode.notes.data.Notes.DataConstants;
-import net.micode.notes.data.Notes.NoteColumns;
-import net.micode.notes.data.Notes.TextNote;
-import net.micode.notes.tool.ResourceParser.NoteBgResources;
-
-
-public class WorkingNote {
-    // Note for the working note
-    private Note mNote;
-    // Note Id
-    private long mNoteId;
-    // Note content
-    private String mContent;
-    // Note mode
-    private int mMode;
-
-    private long mAlertDate;
-
-    private long mModifiedDate;
-
-    private int mBgColorId;
-
-    private int mWidgetId;
-
-    private int mWidgetType;
-
-    private long mFolderId;
-
-    private Context mContext;
-
-    private static final String TAG = "WorkingNote";
-
-    private boolean mIsDeleted;
-
-    private NoteSettingChangedListener mNoteSettingStatusListener;
-
-    public static final String[] DATA_PROJECTION = new String[] {
-            DataColumns.ID,                // 表示数据行的 ID
-            DataColumns.CONTENT,           // 表示数据行的内容
-            DataColumns.MIME_TYPE,         // 表示数据行的 MIME 类型
-            DataColumns.DATA1,             // 表示数据行的附加数据
-            DataColumns.DATA2,             // 表示数据行的附加数据
-            DataColumns.DATA3,             // 表示数据行的附加数据
-            DataColumns.DATA4,             // 表示数据行的附加数据
-    };
-    public static final String[] NOTE_PROJECTION = new String[] {
-            NoteColumns.PARENT_ID,      // 表示笔记的父笔记 ID
-            NoteColumns.ALERTED_DATE,   // 表示笔记的提醒时间
-            NoteColumns.BG_COLOR_ID,    // 表示笔记的背景颜色 ID
-            NoteColumns.WIDGET_ID,      // 表示笔记的小部件 ID
-            NoteColumns.WIDGET_TYPE,    // 表示笔记的小部件类型
-            NoteColumns.MODIFIED_DATE   // 表示笔记的修改时间
-    };
-
-    private static final int DATA_ID_COLUMN = 0;
-
-    private static final int DATA_CONTENT_COLUMN = 1;
-
-    private static final int DATA_MIME_TYPE_COLUMN = 2;
-
-    private static final int DATA_MODE_COLUMN = 3;
-
-    private static final int NOTE_PARENT_ID_COLUMN = 0;
-
-    private static final int NOTE_ALERTED_DATE_COLUMN = 1;
-
-    private static final int NOTE_BG_COLOR_ID_COLUMN = 2;
-
-    private static final int NOTE_WIDGET_ID_COLUMN = 3;
-
-    private static final int NOTE_WIDGET_TYPE_COLUMN = 4;
-
-    private static final int NOTE_MODIFIED_DATE_COLUMN = 5;
-
-    // New note construct
-    /**
-     * 构造方法，创建一个新的 WorkingNote 对象。
-     * @param context 上下文对象
-     * @param folderId 笔记所属文件夹的 ID
-     */
-    private WorkingNote(Context context, long folderId) {
-        // 初始化成员变量
-        mContext = context;                     // 上下文对象
-        mAlertDate = 0;                         // 提醒时间
-        mModifiedDate = System.currentTimeMillis();  // 修改时间，初始化为当前时间戳
-        mFolderId = folderId;                   // 笔记所属文件夹的 ID
-        mNote = new Note();                     // Note 对象
-        mNoteId = 0;                            // 笔记 ID，初始值为 0
-        mIsDeleted = false;                     // 是否已删除，初始值为 false
-        mMode = 0;                              // 模式，初始值为 0
-        mWidgetType = Notes.TYPE_WIDGET_INVALIDE;   // 小部件类型，初始值为无效类型
-    }
-
-
-    // Existing note construct
-    /**
-     * 构造方法，创建一个新的 WorkingNote 对象。
-     * @param context 上下文对象
-     * @param noteId 笔记的ID
-     * @param folderId 笔记所属文件夹的 ID
-     */
-    private WorkingNote(Context context, long noteId, long folderId) {
-        // 初始化成员变量
-        mContext = context;                     // 上下文对象
-        mNoteId = noteId;                       // 笔记 ID
-        mFolderId = folderId;                   // 笔记所属文件夹的 ID
-        mIsDeleted = false;                     // 是否已删除，初始值为 false
-        mNote = new Note();                     // Note 对象
-        loadNote();                             // 加载笔记数据
-    }
-
-
-    /**
-     * 从内容提供程序中使用当前笔记 ID 加载笔记的详细信息。
-     * 查询 CONTENT_NOTE_URI，检索与指定笔记 ID 相对应的记录。
-     * 如果游标不为空并且可以将其移动到第一个结果，则结果将填充 mFolderId、mBgColorId、
-     * mWidgetId、mWidgetType、mAlertDate 和 mModifiedDate 变量。
-     * 然后关闭游标并调用 loadNoteData() 方法以加载笔记剩余部分的数据。
-     * 如果没有检索到任何记录，则在打印错误日志后抛出 IllegalArgumentException 异常。
-     */
-    private void loadNote() {
-        Cursor cursor = mContext.getContentResolver().query(
-                ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mNoteId),
-                NOTE_PROJECTION,
-                null,
-                null,
-                null);
-
-        if (cursor != null) {
-            if (cursor.moveToFirst()) {
-                // 结果将填充以下变量：mFolderId、mBgColorId、mWidgetId、mWidgetType、mAlertDate 和 mModifiedDate
-                mFolderId = cursor.getLong(NOTE_PARENT_ID_COLUMN);
-                mBgColorId = cursor.getInt(NOTE_BG_COLOR_ID_COLUMN);
-                mWidgetId = cursor.getInt(NOTE_WIDGET_ID_COLUMN);
-                mWidgetType = cursor.getInt(NOTE_WIDGET_TYPE_COLUMN);
-                mAlertDate = cursor.getLong(NOTE_ALERTED_DATE_COLUMN);
-                mModifiedDate = cursor.getLong(NOTE_MODIFIED_DATE_COLUMN);
-            }
-            cursor.close();
-        } else {
-            // 没有检索到任何记录，则在打印错误日志后抛出 IllegalArgumentException 异常
-            Log.e(TAG, "No note with id:" + mNoteId);
-            throw new IllegalArgumentException("Unable to find note with id " + mNoteId);
-        }
-        // 加载笔记剩余部分的数据
-        loadNoteData();
-    }
-
-
-    /**
-     * 加载笔记数据。
-     *
-     * 该方法用于从Content Provider中加载当前Note对象的数据。它会查询Notes.CONTENT_DATA_URI，条件为
-     * DataColumns.NOTE_ID等于mNoteId，如果存在符合条件的数据，则将其加载到Note对象中。
-     * 如果在查询时出现错误（例如Content Provider不存在或无法工作、指定的笔记ID无效等），则会抛出IllegalArgumentException异常。
-     */
-    private void loadNoteData() {
-        Cursor cursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, DATA_PROJECTION,
-                DataColumns.NOTE_ID + "=?", new String[] { String.valueOf(mNoteId) }, null);
-
-        if (cursor != null) {
-            if (cursor.moveToFirst()) {
-                // 遍历所有数据并将它们加载到Note对象中。
-                do {
-                    String type = cursor.getString(DATA_MIME_TYPE_COLUMN);
-                    if (DataConstants.NOTE.equals(type)) {
-                        mContent = cursor.getString(DATA_CONTENT_COLUMN);
-                        mMode = cursor.getInt(DATA_MODE_COLUMN);
-                        mNote.setTextDataId(cursor.getLong(DATA_ID_COLUMN));
-                    } else if (DataConstants.CALL_NOTE.equals(type)) {
-                        mNote.setCallDataId(cursor.getLong(DATA_ID_COLUMN));
-                    } else {
-                        Log.d(TAG, "Wrong note type with type:" + type);
-                    }
-                } while (cursor.moveToNext());
-            }
-            cursor.close();
-        } else {
-            // 如果未找到任何数据，则抛出异常。
-            Log.e(TAG, "No data with id:" + mNoteId);
-            throw new IllegalArgumentException("Unable to find note's data with id " + mNoteId);
-        }
-    }
-
-
-    /**
-     * 创建一个空的笔记对象。
-     *
-     * 该方法用于创建一个空白的WorkingNote对象，并设置其初始值。它接受context、folderId、widgetId、
-     * widgetType和defaultBgColorId等参数作为输入，并返回一个新的WorkingNote对象。
-     *
-     * @param context           上下文环境
-     * @param folderId          笔记所在文件夹的ID
-     * @param widgetId          笔记所绑定的Widget的ID（如果有）
-     * @param widgetType        笔记所绑定的Widget的类型（例如便签、待办事项等）
-     * @param defaultBgColorId  笔记默认的背景颜色ID
-     * @return                  返回一个新的WorkingNote对象
-     */
-    public static WorkingNote createEmptyNote(Context context, long folderId, int widgetId,
-                                              int widgetType, int defaultBgColorId) {
-        // 创建一个空白的WorkingNote对象
-        WorkingNote note = new WorkingNote(context, folderId);
-        // 设置笔记的默认背景颜色
-        note.setBgColorId(defaultBgColorId);
-        // 设置笔记所绑定的Widget的ID
-        note.setWidgetId(widgetId);
-        // 设置笔记所绑定的Widget的类型
-        note.setWidgetType(widgetType);
-        // 返回一个新的WorkingNote对象
-        return note;
-    }
-
-
-    /**
-     * 从数据库中加载一个WorkingNote对象。
-     *
-     * 该方法用于从数据库中加载一个指定ID的WorkingNote对象。它接受context和id等参数作为输入，并返回
-     * 一个新的WorkingNote对象。
-     *
-     * @param context   上下文环境
-     * @param id        待加载的WorkingNote对象的ID
-     * @return          返回一个新的WorkingNote对象
-     */
-    public static WorkingNote load(Context context, long id) {
-        // 创建一个新的WorkingNote对象，并将id和0作为参数传入构造函数中
-        return new WorkingNote(context, id, 0);
-    }
-
-
-    /**
-     * 保存笔记对象。
-     *
-     * 该方法用于将当前WorkingNote对象（如果有必要）保存到数据库中。如果该笔记尚未存在于数据库中，
-     * 则会先创建一个新的笔记记录。它还会更新绑定在该笔记上的Widget内容（如果该笔记绑定了Widget）。
-     *
-     * @return  如果笔记成功保存，则返回true；否则返回false
-     */
-    public synchronized boolean saveNote() {
-        // 检查该笔记是否值得被保存
-        if (isWorthSaving()) {
-            // 如果该笔记尚未存在于数据库中，则需要先创建一个新的笔记记录。
-            if (!existInDatabase()) {
-                // 获取一个新的笔记ID
-                if ((mNoteId = Note.getNewNoteId(mContext, mFolderId)) == 0) {
-                    Log.e(TAG, "Create new note fail with id:" + mNoteId);
-                    return false;
-                }
-            }
-
-            // 将当前WorkingNote对象同步到Note对象中
-            mNote.syncNote(mContext, mNoteId);
-
-            /**
-             * 如果该笔记绑定了Widget，则需要更新Widget的内容。
-             */
-            if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID
-                    && mWidgetType != Notes.TYPE_WIDGET_INVALIDE
-                    && mNoteSettingStatusListener != null) {
-                mNoteSettingStatusListener.onWidgetChanged();
-            }
-
-            return true;
-        } else {
-            return false;
-        }
-    }
-
-
-    /**
-     * 检查当前WorkingNote对象是否存在于数据库中。
-     *
-     * 该方法用于检查当前WorkingNote对象是否已经存在于数据库中。如果该笔记已经保存过，则existInDatabase()
-     * 方法会返回true；否则返回false。
-     *
-     * @return  如果笔记已经存在于数据库中，则返回true；否则返回false
-     */
-    public boolean existInDatabase() {
-        return mNoteId > 0;
-    }
-
-    /**
-     * 判断笔记是否值得被保存。
-     *
-     * 该方法用于判断当前WorkingNote对象是否值得被保存到数据库中。它会根据笔记内容、是否被删除以及
-     * 是否已经保存到数据库等因素做出判断。如果该笔记不需要被保存，则isWorthSaving()方法会返回
-     * false；否则返回true。
-     *
-     * @return  如果笔记值得被保存到数据库中，则返回true；否则返回false
-     */
-    private boolean isWorthSaving() {
-        if (mIsDeleted || (!existInDatabase() && TextUtils.isEmpty(mContent))
-                || (existInDatabase() && !mNote.isLocalModified())) {
-            // 如果该笔记已经被标记为“已删除”，或者它既没有保存到数据库中，也没有任何数据，或者它已经存在于
-            // 数据库中但没有被修改过，则认为该笔记不需要被保存。
-            return false;
-        } else {
-            return true;
-        }
-    }
-
-
-    /**
-     * 设置笔记设置状态更改监听器。
-     *
-     * 该方法用于设置一个NoteSettingChangedListener对象，以便能够在笔记设置状态发生更改时接收通知。
-     *
-     * @param l     笔记设置状态更改监听器
-     */
-    public void setOnSettingStatusChangedListener(NoteSettingChangedListener l) {
-        mNoteSettingStatusListener = l;
-    }
-
-
-    /**
-     * 设置笔记提醒日期。
-     *
-     * 该方法用于为当前WorkingNote对象设置一个提醒日期。它接受date和set两个参数作为输入，分别表示
-     * 待设置的提醒日期和是否需要进行设置。如果待设置的提醒日期与当前笔记的提醒日期不同，则会将其更新到
-     * Note对象中，并通知设置状态更改监听器。
-     *
-     * @param date  待设置的提醒日期
-     * @param set   是否需要进行设置
-     */
-    public void setAlertDate(long date, boolean set) {
-        if (date != mAlertDate) {
-            // 如果待设置的提醒日期与当前笔记的提醒日期不同，则需要更新Note对象中的数据。
-            mAlertDate = date;
-            mNote.setNoteValue(NoteColumns.ALERTED_DATE, String.valueOf(mAlertDate));
-        }
-        // 通知设置状态更改监听器。
-        if (mNoteSettingStatusListener != null) {
-            mNoteSettingStatusListener.onClockAlertChanged(date, set);
-        }
-    }
-
-
-    /**
-     * 标记笔记是否被删除。
-     *
-     * 该方法用于标记当前WorkingNote对象是否已经被删除。它接受一个mark参数作为输入，如果mark为true，
-     * 则表示该笔记已经被删除，否则表示该笔记未被删除。在标记笔记删除状态的同时，该方法还会检查
-     * 是否存在与该笔记绑定的Widget，如果有，则需要更新Widget的内容。
-     *
-     * @param mark  是否将当前WorkingNote对象标记为“已删除”
-     */
-    public void markDeleted(boolean mark) {
-        // 标记当前WorkingNote对象是否已经被删除。
-        mIsDeleted = mark;
-        // 检查是否存在与该笔记绑定的Widget，如果有，则需要更新Widget的内容。
-        if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID
-                && mWidgetType != Notes.TYPE_WIDGET_INVALIDE
-                && mNoteSettingStatusListener != null) {
-            mNoteSettingStatusListener.onWidgetChanged();
-        }
-    }
-
-
-    /**
-     * 设置笔记的背景颜色ID。
-     *
-     * 该方法用于为当前WorkingNote对象设置一个新的背景颜色ID。它接受一个id参数作为输入，表示待设置
-     * 的背景颜色ID。如果待设置的背景颜色ID与当前笔记的背景颜色ID不同，则会将其更新到Note对象中，
-     * 并通知设置状态更改监听器。
-     *
-     * @param id    待设置的背景颜色ID
-     */
-    public void setBgColorId(int id) {
-        if (id != mBgColorId) {
-            // 如果待设置的背景颜色ID与当前笔记的背景颜色ID不同，则需要更新Note对象中的数据。
-            mBgColorId = id;
-            mNote.setNoteValue(NoteColumns.BG_COLOR_ID, String.valueOf(id));
-            // 通知设置状态更改监听器。
-            if (mNoteSettingStatusListener != null) {
-                mNoteSettingStatusListener.onBackgroundColorChanged();
-            }
-        }
-    }
-
-    /**
-     * 设置笔记的清单模式。
-     *
-     * 该方法用于设置当前WorkingNote对象的清单模式。它接受一个mode参数作为输入，表示待设置的清单模式。
-     * 如果当前笔记的清单模式与待设置的清单模式不同，则会将其更新到Note对象中，并通知设置状态更改监听器。
-     *
-     * @param mode  待设置的清单模式
-     */
-    public void setCheckListMode(int mode) {
-        if (mMode != mode) {
-            // 如果当前笔记的清单模式与待设置的清单模式不同，则需要更新Note对象中的数据。
-            mMode = mode;
-            mNote.setTextData(TextNote.MODE, String.valueOf(mMode));
-            // 通知设置状态更改监听器。
-            if (mNoteSettingStatusListener != null) {
-                mNoteSettingStatusListener.onCheckListModeChanged(mMode, mode);
-            }
-        }
-    }
-
-    /**
-     * 设置笔记绑定的Widget类型。
-     *
-     * 该方法用于设置当前WorkingNote对象绑定的Widget类型。它接受一个type参数作为输入，表示待设置的
-     * Widget类型。如果当前笔记绑定的Widget类型与待设置的Widget类型不同，则会将其更新到Note对象中。
-     *
-     * @param type  待设置的Widget类型
-     */
-    public void setWidgetType(int type) {
-        if (type != mWidgetType) {
-            // 如果当前笔记绑定的Widget类型与待设置的Widget类型不同，则需要更新Note对象中的数据。
-            mWidgetType = type;
-            mNote.setNoteValue(NoteColumns.WIDGET_TYPE, String.valueOf(mWidgetType));
-        }
-    }
-
-    /**
-     * 设置笔记绑定的Widget ID。
-     *
-     * 该方法用于设置当前WorkingNote对象绑定的Widget ID。它接受一个id参数作为输入，表示待设置的
-     * Widget ID。如果当前笔记绑定的Widget ID与待设置的Widget ID不同，则会将其更新到Note对象中。
-     *
-     * @param id    待设置的Widget ID
-     */
-    public void setWidgetId(int id) {
-        if (id != mWidgetId) {
-            // 如果当前笔记绑定的Widget ID与待设置的Widget ID不同，则需要更新Note对象中的数据。
-            mWidgetId = id;
-            mNote.setNoteValue(NoteColumns.WIDGET_ID, String.valueOf(mWidgetId));
-        }
-    }
-
-
-    /**
-     * 设置笔记的文本内容。
-     *
-     * 该方法用于设置当前WorkingNote对象的文本内容。它接受一个text参数作为输入，表示待设置的文本内容。
-     * 如果当前笔记的文本内容与待设置的文本内容不同，则会将其更新到Note对象中。
-     *
-     * @param text  待设置的文本内容
-     */
-    public void setWorkingText(String text) {
-        if (!TextUtils.equals(mContent, text)) {
-            // 如果当前笔记的文本内容与待设置的文本内容不同，则需要更新Note对象中的数据。
-            mContent = text;
-            mNote.setTextData(DataColumns.CONTENT, mContent);
-        }
-    }
-
-    /**
-     * 将笔记转换为通话记录。
-     *
-     * 该方法用于将当前WorkingNote对象转换为通话记录。它接受一个phoneNumber和callDate两个参数作为输入，
-     * 分别表示通话记录的电话号码和通话日期。该方法会将笔记的类型设置为通话记录，并将相应的数据保存到Note对象中。
-     *
-     * @param phoneNumber   通话记录的电话号码
-     * @param callDate      通话记录的通话日期
-     */
-    public void convertToCallNote(String phoneNumber, long callDate) {
-        // 将笔记的类型设置为通话记录，并将相应的数据保存到Note对象中。
-        mNote.setCallData(CallNote.CALL_DATE, String.valueOf(callDate));
-        mNote.setCallData(CallNote.PHONE_NUMBER, phoneNumber);
-        mNote.setNoteValue(NoteColumns.PARENT_ID, String.valueOf(Notes.ID_CALL_RECORD_FOLDER));
-    }
-
-
-    /**
-     * 检查笔记是否设置了提醒。
-     *
-     * 该方法用于检查当前WorkingNote对象是否设置了提醒。如果已经设置了提醒，则返回true；否则返回false。
-     *
-     * @return  如果笔记设置了提醒，则返回true；否则返回false
-     */
-    public boolean hasClockAlert() {
-        return (mAlertDate > 0 ? true : false);
-    }
-
-    /**
-     * 获取笔记的文本内容。
-     *
-     * 该方法用于获取当前WorkingNote对象的文本内容。
-     *
-     * @return  当前WorkingNote对象的文本内容
-     */
-    public String getContent() {
-        return mContent;
-    }
-
-    /**
-     * 获取笔记的提醒日期。
-     *
-     * 该方法用于获取当前WorkingNote对象的提醒日期。
-     *
-     * @return  当前WorkingNote对象的提醒日期
-     */
-    public long getAlertDate() {
-        return mAlertDate;
-    }
-
-    /**
-     * 获取笔记的修改日期。
-     *
-     * 该方法用于获取当前WorkingNote对象的修改日期。
-     *
-     * @return  当前WorkingNote对象的修改日期
-     */
-    public long getModifiedDate() {
-        return mModifiedDate;
-    }
-
-    /**
-     * 获取笔记的背景颜色资源ID。
-     *
-     * 该方法用于获取当前WorkingNote对象的背景颜色资源ID。它会根据当前笔记的背景颜色ID返回相应的颜色资源ID。
-     *
-     * @return  当前WorkingNote对象的背景颜色资源ID
-     */
-    public int getBgColorResId() {
-        return NoteBgResources.getNoteBgResource(mBgColorId);
-    }
-
-
-    /**
-     * 获取笔记的背景颜色ID。
-     *
-     * 该方法用于获取当前WorkingNote对象的背景颜色ID。
-     *
-     * @return  当前WorkingNote对象的背景颜色ID
-     */
-    public int getBgColorId() {
-        return mBgColorId;
-    }
-
-    /**
-     * 获取笔记标题的背景颜色资源ID。
-     *
-     * 该方法用于获取当前WorkingNote对象的标题栏背景颜色资源ID。它会根据当前笔记的背景颜色ID返回相应的颜色资源ID。
-     *
-     * @return  当前WorkingNote对象的标题栏背景颜色资源ID
-     */
-    public int getTitleBgResId() {
-        return NoteBgResources.getNoteTitleBgResource(mBgColorId);
-    }
-
-    /**
-     * 获取笔记的清单模式。
-     *
-     * 该方法用于获取当前WorkingNote对象的清单模式。
-     *
-     * @return  当前WorkingNote对象的清单模式
-     */
-    public int getCheckListMode() {
-        return mMode;
-    }
-
-    /**
-     * 获取笔记的ID。
-     *
-     * 该方法用于获取当前WorkingNote对象对应的Note对象的ID。
-     *
-     * @return  当前WorkingNote对象对应的Note对象的ID
-     */
-    public long getNoteId() {
-        return mNoteId;
-    }
-
-
-    public long getFolderId() {
-        return mFolderId;
-    }
-
-    public int getWidgetId() {
-        return mWidgetId;
-    }
-
-    public int getWidgetType() {
-        return mWidgetType;
-    }
-
-    public interface NoteSettingChangedListener {
-        /**
-         * Called when the background color of current note has just changed
-         */
-        void onBackgroundColorChanged();
-
-        /**
-         * Called when user set clock
-         */
-        void onClockAlertChanged(long date, boolean set);
-
-        /**
-         * Call when user create note from widget
-         */
-        void onWidgetChanged();
-
-        /**
-         * Call when switch between check list mode and normal mode
-         * @param oldMode is previous mode before change
-         * @param newMode is new mode
-         */
-        void onCheckListModeChanged(int oldMode, int newMode);
-    }
-}

other/07_陈七源_代码标注/tool/BackupUtils.java

@@ -1,442 +0,0 @@
-/*
- * 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.tool;
-
-import android.content.Context;
-import android.database.Cursor;
-import android.os.Environment;
-import android.text.TextUtils;
-import android.text.format.DateFormat;
-import android.util.Log;
-
-import net.micode.notes.R;
-import net.micode.notes.data.Notes;
-import net.micode.notes.data.Notes.DataColumns;
-import net.micode.notes.data.Notes.DataConstants;
-import net.micode.notes.data.Notes.NoteColumns;
-
-import java.io.File;
-import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.PrintStream;
-
-
-public class BackupUtils {
-    private static final String TAG = "BackupUtils";
-    // Singleton stuff
-    private static BackupUtils sInstance;
-
-    /**
-     * 返回 BackupUtils 类的单例实例，并确保线程安全。
-     * @param context 应用程序的上下文。
-     * @return BackupUtils 类的实例。
-     */
-    public static synchronized BackupUtils getInstance(Context context) {
-        // 如果实例不存在，创建一个新的实例
-        if (sInstance == null) {
-            sInstance = new BackupUtils(context);
-        }
-        // 返回现有实例或新创建的实例
-        return sInstance;
-    }
-
-
-    /**
-     * Following states are signs to represents backup or restore
-     * status
-     */
-    // Currently, the sdcard is not mounted
-    // SD卡未挂载的状态
-    public static final int STATE_SD_CARD_UNMOUONTED = 0;
-    // 备份文件不存在的状态
-    public static final int STATE_BACKUP_FILE_NOT_EXIST = 1;
-    // 数据格式不正确，可能被其他程序更改的状态
-    public static final int STATE_DATA_DESTROIED = 2;
-    // 恢复或备份失败的状态，由运行时异常引起
-    public static final int STATE_SYSTEM_ERROR = 3;
-    // 备份或恢复成功的状态
-    public static final int STATE_SUCCESS = 4;
-
-    private TextExport mTextExport; // 用于导出文本数据的 TextExport 实例
-
-    // 构造函数，用于创建 BackupUtils 类的实例
-    private BackupUtils(Context context) {
-        mTextExport = new TextExport(context); // 创建 TextExport 实例并保存到成员变量中
-    }
-
-    /**
-     * 检查外部存储是否可用。
-     * @return 如果外部存储可用，则返回 true；否则返回 false。
-     */
-    private static boolean externalStorageAvailable() {
-        return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
-    }
-
-    /**
-     * 将数据导出到文本文件中。
-     * @return 导出操作的结果状态。
-     */
-    public int exportToText() {
-        return mTextExport.exportToText();
-    }
-
-    /**
-     * 获取导出的文本文件名。
-     * @return 导出的文本文件名。
-     */
-    public String getExportedTextFileName() {
-        return mTextExport.mFileName;
-    }
-
-    /**
-     * 获取导出的文本文件所在的目录。
-     * @return 导出的文本文件所在的目录。
-     */
-    public String getExportedTextFileDir() {
-        return mTextExport.mFileDirectory;
-    }
-
-    private static class TextExport {
-        private static final String[] NOTE_PROJECTION = {
-                NoteColumns.ID,               // 笔记的标识符
-                NoteColumns.MODIFIED_DATE,    // 笔记最近修改的日期
-                NoteColumns.SNIPPET,          // 笔记内容的片段，用于快速预览笔记
-                NoteColumns.TYPE              // 笔记的类型
-        };
-
-        private static final int NOTE_COLUMN_ID = 0;                // 列 ID
-        private static final int NOTE_COLUMN_MODIFIED_DATE = 1;     // 列 MODIFIED_DATE
-        private static final int NOTE_COLUMN_SNIPPET = 2;           // 列 SNIPPET
-
-        private static final String[] DATA_PROJECTION = {
-                DataColumns.CONTENT,      // 数据的主体内容
-                DataColumns.MIME_TYPE,    // 数据的 MIME 类型
-                DataColumns.DATA1,        // 此列可能包含电话号码、电子邮件地址等。
-                DataColumns.DATA2,        // 此列可能包含电话类型（家庭、工作等）、电子邮件类型等。
-                DataColumns.DATA3,        // 通常情况下，此列的使用与 DATA2 相同。
-                DataColumns.DATA4         // 保留供将来使用。
-        };
-
-        private static final int DATA_COLUMN_CONTENT = 0;          // 列 CONTENT
-        private static final int DATA_COLUMN_MIME_TYPE = 1;        // 列 MIME_TYPE
-        private static final int DATA_COLUMN_CALL_DATE = 2;        // 列 CALL_DATE
-
-
-        private static final int DATA_COLUMN_PHONE_NUMBER = 4;     // 列 PHONE_NUMBER
-
-        private final String[] TEXT_FORMAT;                       // 存储导出文本的格式
-        private static final int FORMAT_FOLDER_NAME = 0;           // 文件夹名对应的格式
-        private static final int FORMAT_NOTE_DATE = 1;             // 笔记日期对应的格式
-        private static final int FORMAT_NOTE_CONTENT = 2;          // 笔记内容对应的格式
-
-        private Context mContext;                                  // 应用程序上下文
-        private String mFileName;                                  // 导出文件的名称
-        private String mFileDirectory;                             // 导出文件所在的目录
-
-
-        /**
-         * 构造函数，用于创建 TextExport 类的实例。
-         *
-         * @param context 应用程序上下文。
-         */
-        public TextExport(Context context) {
-            TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note); // 从资源中获取导出文本的格式
-            mContext = context;                              // 保存应用程序上下文
-            mFileName = "";                                  // 导出文件名称为空
-            mFileDirectory = "";                             // 导出文件所在目录为空
-        }
-
-        /**
-         * 获取指定索引处的导出文本格式。
-         *
-         * @param id 索引值。
-         * @return 指定索引处的导出文本格式。
-         */
-        private String getFormat(int id) {
-            return TEXT_FORMAT[id];                           // 返回指定索引处的导出文本格式
-        }
-
-        /**
-         * Export the folder identified by folder id to text
-         */
-        /**
-         * 导出指定笔记本中的所有笔记到文本文件。
-         *
-         * @param folderId 笔记本的标识符。
-         * @param ps       PrintStream 对象，用于写入导出的文本数据。
-         */
-        private void exportFolderToText(String folderId, PrintStream ps) {
-            // 查询属于该笔记本的笔记
-            Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI,
-                    NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[]{folderId}, null);
-
-            if (notesCursor != null) {
-                if (notesCursor.moveToFirst()) {
-                    do {
-                        // 打印笔记的最近修改日期
-                        ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format(
-                                mContext.getString(R.string.format_datetime_mdhm),
-                                notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE))));
-                        // 查询属于该笔记的数据
-                        String noteId = notesCursor.getString(NOTE_COLUMN_ID);
-                        exportNoteToText(noteId, ps);     // 将笔记导出到文本文件
-                    } while (notesCursor.moveToNext());
-                }
-                notesCursor.close();
-            }
-        }
-
-        /**
-         * 将指定 ID 的笔记导出到打印流中。
-         *
-         * @param noteId 要导出的笔记 ID。
-         * @param ps     要写入笔记的打印流对象。
-         */
-        private void exportNoteToText(String noteId, PrintStream ps) {
-            // 查询与该笔记关联的数据项
-            Cursor dataCursor = mContext.getContentResolver().query(
-                    Notes.CONTENT_DATA_URI, // 查询的 URI
-                    DATA_PROJECTION, // 要查询的列名
-                    DataColumns.NOTE_ID + "=?", // WHERE 子句
-                    new String[]{noteId}, // WHERE 子句中占位符的值
-                    null // 排序方式
-            );
-
-            if (dataCursor != null) {
-                if (dataCursor.moveToFirst()) {
-                    do {
-                        // 获取当前数据项的 MIME 类型
-                        String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE);
-                        if (DataConstants.CALL_NOTE.equals(mimeType)) {
-                            // 处理通话记录类型的笔记
-                            String phoneNumber = dataCursor.getString(DATA_COLUMN_PHONE_NUMBER); // 电话号码
-                            long callDate = dataCursor.getLong(DATA_COLUMN_CALL_DATE); // 通话日期
-                            String location = dataCursor.getString(DATA_COLUMN_CONTENT); // 通话位置
-
-                            if (!TextUtils.isEmpty(phoneNumber)) {
-                                // 如果电话号码不为空，就将其写入打印流中
-                                ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), phoneNumber));
-                            }
-
-                            // 将通话日期格式化为字符串，并写入打印流中
-                            ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
-                                    DateFormat.format(mContext.getString(R.string.format_datetime_mdhm), callDate)));
-
-                            if (!TextUtils.isEmpty(location)) {
-                                // 如果通话位置不为空，就将其写入打印流中
-                                ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), location));
-                            }
-                        } else if (DataConstants.NOTE.equals(mimeType)) {
-                            // 处理普通笔记类型
-                            String content = dataCursor.getString(DATA_COLUMN_CONTENT); // 笔记内容
-
-                            if (!TextUtils.isEmpty(content)) {
-                                // 如果笔记内容不为空，就将其写入打印流中
-                                ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), content));
-                            }
-                        }
-                    } while (dataCursor.moveToNext());
-                }
-
-                // 关闭游标
-                dataCursor.close();
-            }
-
-            // 在每个笔记之间输出一个分隔符
-            try {
-                ps.write(new byte[]{Character.LINE_SEPARATOR, Character.LETTER_NUMBER});
-            } catch (IOException e) {
-                Log.e(TAG, e.toString());
-            }
-        }
-
-        /**
-         * 将笔记导出为纯文本文件。
-         *
-         * @return 导出的状态码。
-         */
-        public int exportToText() {
-            // 检查外部存储是否可用
-            if (!externalStorageAvailable()) {
-                Log.d(TAG, "Media was not mounted");
-                return STATE_SD_CARD_UNMOUONTED;
-            }
-
-            // 获取打印流对象，准备写入数据
-            PrintStream ps = getExportToTextPrintStream();
-            if (ps == null) {
-                Log.e(TAG, "get print stream error");
-                return STATE_SYSTEM_ERROR;
-            }
-
-            // 先导出所有的文件夹及其笔记
-            Cursor folderCursor = mContext.getContentResolver().query(
-                    Notes.CONTENT_NOTE_URI, // 查询的 URI
-                    NOTE_PROJECTION, // 要查询的列名
-                    "(" + NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER + " AND "
-                            + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + ") OR "
-                            + NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER, // WHERE 子句
-                    null, // WHERE 子句中占位符的值
-                    null // 排序方式
-            );
-
-            if (folderCursor != null) {
-                if (folderCursor.moveToFirst()) {
-                    do {
-                        // 打印文件夹名称
-                        String folderName = "";
-                        if (folderCursor.getLong(NOTE_COLUMN_ID) == Notes.ID_CALL_RECORD_FOLDER) {
-                            folderName = mContext.getString(R.string.call_record_folder_name);
-                        } else {
-                            folderName = folderCursor.getString(NOTE_COLUMN_SNIPPET);
-                        }
-                        if (!TextUtils.isEmpty(folderName)) {
-                            ps.println(String.format(getFormat(FORMAT_FOLDER_NAME), folderName));
-                        }
-                        String folderId = folderCursor.getString(NOTE_COLUMN_ID);
-                        // 导出当前文件夹下的所有笔记
-                        exportFolderToText(folderId, ps);
-                    } while (folderCursor.moveToNext());
-                }
-
-                // 关闭游标
-                folderCursor.close();
-            }
-
-            // 导出根目录下的笔记
-            Cursor noteCursor = mContext.getContentResolver().query(
-                    Notes.CONTENT_NOTE_URI, // 查询的 URI
-                    NOTE_PROJECTION, // 要查询的列名
-                    NoteColumns.TYPE + "=" + +Notes.TYPE_NOTE + " AND " + NoteColumns.PARENT_ID + "=0", // WHERE 子句
-                    null, // WHERE 子句中占位符的值
-                    null // 排序方式
-            );
-
-            if (noteCursor != null) {
-                if (noteCursor.moveToFirst()) {
-                    do {
-                        // 打印笔记的最后修改时间
-                        ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format(
-                                mContext.getString(R.string.format_datetime_mdhm),
-                                noteCursor.getLong(NOTE_COLUMN_MODIFIED_DATE))));
-                        // 导出当前笔记的内容
-                        String noteId = noteCursor.getString(NOTE_COLUMN_ID);
-                        exportNoteToText(noteId, ps);
-                    } while (noteCursor.moveToNext());
-                }
-
-                // 关闭游标
-                noteCursor.close();
-            }
-
-            // 关闭打印流
-            ps.close();
-            return STATE_SUCCESS;
-        }
-        /**
-         * Get a print stream pointed to the file {@generateExportedTextFile}
-         */
-        /**
-         * 生成用于将数据输出到文本文件中的PrintStream对象。
-         *
-         * @return 用于将数据输出到文本文件中的PrintStream对象。
-         */
-        private PrintStream getExportToTextPrintStream() {
-            // 生成指定路径和名称的文本文件，保存在SD卡上。
-            File file = generateFileMountedOnSDcard(mContext, R.string.file_path,
-                    R.string.file_name_txt_format);
-            if (file == null) {
-                // 如果创建文件失败，则记录错误日志并返回null。
-                Log.e(TAG, "create file to exported failed");
-                return null;
-            }
-            // 将文件名保存在成员变量中。
-            mFileName = file.getName();
-            // 将文件目录路径保存在成员变量中。
-            mFileDirectory = mContext.getString(R.string.file_path);
-            PrintStream ps = null;
-            try {
-                // 创建一个新的FileOutputStream对象，并将其包装在PrintStream对象中。
-                FileOutputStream fos = new FileOutputStream(file);
-                ps = new PrintStream(fos);
-            } catch (FileNotFoundException e) {
-                // 如果找不到文件，则打印堆栈跟踪并返回null。
-                e.printStackTrace();
-                return null;
-            } catch (NullPointerException e) {
-                // 如果发生空指针异常，则打印堆栈跟踪并返回null。
-                e.printStackTrace();
-                return null;
-            }
-            // 返回用于将数据输出到文本文件中的PrintStream对象。
-            return ps;
-        }
-    }
-
-        /**
-     * Generate the text file to store imported data
-     */
-    /**
-     * 在SD卡上创建目录和指定格式的文件。
-     *
-     * @param context 上下文对象。
-     * @param filePathResId 文件路径的字符串资源ID。
-     * @param fileNameFormatResId 文件名格式的字符串资源ID。
-     * @return 生成的文件对象，如果创建失败则返回null。
-     */
-    private static File generateFileMountedOnSDcard(Context context, int filePathResId, int fileNameFormatResId) {
-        // 创建一个StringBuilder对象，用于拼接文件路径和名称。
-        StringBuilder sb = new StringBuilder();
-        // 将外部存储器目录添加到StringBuilder中。
-        sb.append(Environment.getExternalStorageDirectory());
-        // 将文件路径的字符串资源ID添加到StringBuilder中。
-        sb.append(context.getString(filePathResId));
-        // 创建一个包含文件路径的File对象。
-        File filedir = new File(sb.toString());
-        // 将文件名格式化并将其添加到StringBuilder末尾。
-        sb.append(context.getString(fileNameFormatResId,
-                DateFormat.format(context.getString(R.string.format_date_ymd), System.currentTimeMillis())));
-        // 创建一个包含完整文件路径的File对象。
-        File file = new File(sb.toString());
-
-        try {
-            // 如果文件夹不存在，则创建它。
-            if (!filedir.exists()) {
-                filedir.mkdir();
-            }
-            // 如果文件不存在，则创建它。
-            if (!file.exists()) {
-                file.createNewFile();
-            }
-            // 返回创建的文件对象。
-            return file;
-        } catch (SecurityException e) {
-            // 捕获安全异常，并打印错误日志。
-            e.printStackTrace();
-        } catch (IOException e) {
-            // 捕获I/O异常，并打印错误日志。
-            e.printStackTrace();
-        }
-
-        // 如果创建文件失败，则返回null。
-        return null;
-    }
-
-}
-
-

other/07_陈七源_代码标注/tool/ResourceParser.java

@@ -1,284 +0,0 @@
-/*
- * 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.tool;
-
-import android.content.Context;
-import android.preference.PreferenceManager;
-
-import net.micode.notes.R;
-import net.micode.notes.ui.NotesPreferenceActivity;
-
-public class ResourceParser {
-
-    public static final int YELLOW           = 0;
-    public static final int BLUE             = 1;
-    public static final int WHITE            = 2;
-    public static final int GREEN            = 3;
-    public static final int RED              = 4;
-
-    public static final int BG_DEFAULT_COLOR = YELLOW;
-
-    public static final int TEXT_SMALL       = 0;
-    public static final int TEXT_MEDIUM      = 1;
-    public static final int TEXT_LARGE       = 2;
-    public static final int TEXT_SUPER       = 3;
-
-    public static final int BG_DEFAULT_FONT_SIZE = TEXT_MEDIUM;
-
-    public static class NoteBgResources {
-        // 存储五种不同颜色的背景图片资源id
-        private final static int [] BG_EDIT_RESOURCES = new int [] {
-                R.drawable.edit_yellow,  // 黄色背景图片
-                R.drawable.edit_blue,    // 蓝色背景图片
-                R.drawable.edit_white,   // 白色背景图片
-                R.drawable.edit_green,   // 绿色背景图片
-                R.drawable.edit_red      // 红色背景图片
-        };
-
-        // 存储五种不同颜色的标题栏背景图片资源id
-        private final static int [] BG_EDIT_TITLE_RESOURCES = new int [] {
-                R.drawable.edit_title_yellow,  // 黄色标题栏背景图片
-                R.drawable.edit_title_blue,    // 蓝色标题栏背景图片
-                R.drawable.edit_title_white,   // 白色标题栏背景图片
-                R.drawable.edit_title_green,   // 绿色标题栏背景图片
-                R.drawable.edit_title_red      // 红色标题栏背景图片
-        };
-
-        /**
-         * 获取给定 id 对应的笔记项背景资源 ID
-         *
-         * @param id 笔记项背景色的 ID，从 0 到 4 分别表示黄、蓝、白、绿、红五种颜色
-         * @return 笔记项背景资源的 ID
-         */
-        public static int getNoteBgResource(int id) {
-            return BG_EDIT_RESOURCES[id];
-        }
-
-        /**
-         * 获取给定 id 对应的标题栏背景资源 ID
-         *
-         * @param id 标题栏背景色的 ID，从 0 到 2 分别表示橙色、蓝色和绿色三种颜色
-         * @return 标题栏背景资源的 ID
-         */
-        public static int getNoteTitleBgResource(int id) {
-            return BG_EDIT_TITLE_RESOURCES[id];
-        }
-
-    }
-
-    /**
-     * 获取笔记项的默认背景 ID
-     *
-     * @param context 上下文对象
-     * @return 笔记项的默认背景资源 ID
-     */
-    public static int getDefaultBgId(Context context) {
-        // 检查应用程序的共享首选项中是否启用了自定义笔记项背景颜色
-        if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean(
-                NotesPreferenceActivity.PREFERENCE_SET_BG_COLOR_KEY, false)) {
-            // 如果已经启用，则生成一个随机数并返回对应的笔记项背景资源 ID
-            return (int) (Math.random() * NoteBgResources.BG_EDIT_RESOURCES.length);
-        } else {
-            // 如果未启用，则返回默认背景颜色（即 BG_DEFAULT_COLOR）所对应的资源 ID。
-            return BG_DEFAULT_COLOR;
-        }
-    }
-
-
-    public static class NoteItemBgResources {
-        /**
-         * 笔记项在列表中作为第一个条目时的背景资源 ID
-         */
-        private final static int [] BG_FIRST_RESOURCES = new int [] {
-                R.drawable.list_yellow_up,
-                R.drawable.list_blue_up,
-                R.drawable.list_white_up,
-                R.drawable.list_green_up,
-                R.drawable.list_red_up
-        };
-
-        /**
-         * 笔记项在列表中作为中间条目时的背景资源 ID
-         */
-        private final static int [] BG_NORMAL_RESOURCES = new int [] {
-                R.drawable.list_yellow_middle,
-                R.drawable.list_blue_middle,
-                R.drawable.list_white_middle,
-                R.drawable.list_green_middle,
-                R.drawable.list_red_middle
-        };
-
-        /**
-         * 笔记项在列表中作为最后一个条目时的背景资源 ID
-         */
-        private final static int [] BG_LAST_RESOURCES = new int [] {
-                R.drawable.list_yellow_down,
-                R.drawable.list_blue_down,
-                R.drawable.list_white_down,
-                R.drawable.list_green_down,
-                R.drawable.list_red_down,
-        };
-
-
-        /**
-         * 笔记项在列表中作为唯一条目时的背景资源 ID
-         */
-        private final static int [] BG_SINGLE_RESOURCES = new int [] {
-                R.drawable.list_yellow_single,
-                R.drawable.list_blue_single,
-                R.drawable.list_white_single,
-                R.drawable.list_green_single,
-                R.drawable.list_red_single
-        };
-
-        /**
-         * 获取给定 id 对应的笔记项在列表中作为第一个条目时的背景资源 ID
-         *
-         * @param id 背景颜色的 ID，从 0 到 4 分别表示黄、蓝、白、绿、红五种颜色
-         * @return 笔记项在列表中作为第一个条目时的背景资源 ID
-         */
-        public static int getNoteBgFirstRes(int id) {
-            return BG_FIRST_RESOURCES[id];
-        }
-
-        /**
-         * 获取给定 id 对应的笔记项在列表中作为最后一个条目时的背景资源 ID
-         *
-         * @param id 背景颜色的 ID，从 0 到 4 分别表示黄、蓝、白、绿、红五种颜色
-         * @return 笔记项在列表中作为最后一个条目时的背景资源 ID
-         */
-        public static int getNoteBgLastRes(int id) {
-            return BG_LAST_RESOURCES[id];
-        }
-
-        /**
-         * 获取给定 id 对应的笔记项在列表中作为唯一条目时的背景资源 ID
-         *
-         * @param id 背景颜色的 ID，从 0 到 4 分别表示黄、蓝、白、绿、红五种颜色
-         * @return 笔记项在列表中作为唯一条目时的背景资源 ID
-         */
-        public static int getNoteBgSingleRes(int id) {
-            return BG_SINGLE_RESOURCES[id];
-        }
-
-
-        /**
-         * 获取给定 id 对应的笔记项在列表中作为中间条目时的背景资源 ID
-         *
-         * @param id 背景颜色的 ID，从 0 到 4 分别表示黄、蓝、白、绿、红五种颜色
-         * @return 笔记项在列表中作为中间条目时的背景资源 ID
-         */
-        public static int getNoteBgNormalRes(int id) {
-            return BG_NORMAL_RESOURCES[id];
-        }
-
-        /**
-         * 返回文件夹列表中文件夹的背景资源 ID，该资源是一个 drawable（R.drawable.list_folder）
-         *
-         * @return 文件夹列表中文件夹的背景资源 ID
-         */
-        public static int getFolderBgRes() {
-            return R.drawable.list_folder;
-        }
-
-    }
-
-    public static class WidgetBgResources {
-        /**
-         * 小部件在 2x2 模式下的背景资源 ID 数组
-         */
-        private final static int [] BG_2X_RESOURCES = new int [] {
-                R.drawable.widget_2x_yellow,
-                R.drawable.widget_2x_blue,
-                R.drawable.widget_2x_white,
-                R.drawable.widget_2x_green,
-                R.drawable.widget_2x_red,
-        };
-
-        /**
-         * 获取给定 id 对应的小部件在 2x2 模式下的背景资源 ID
-         *
-         * @param id 背景颜色的 ID，从 0 到 4 分别表示黄、蓝、白、绿、红五种颜色
-         * @return 给定 id 对应的小部件在 2x2 模式下的背景资源 ID
-         */
-        public static int getWidget2xBgResource(int id) {
-            return BG_2X_RESOURCES[id];
-        }
-
-        /**
-         * 小部件在 4x4 模式下的背景资源 ID 数组
-         */
-        private final static int [] BG_4X_RESOURCES = new int [] {
-                R.drawable.widget_4x_yellow,
-                R.drawable.widget_4x_blue,
-                R.drawable.widget_4x_white,
-                R.drawable.widget_4x_green,
-                R.drawable.widget_4x_red
-        };
-
-        /**
-         * 获取给定 id 对应的小部件在 4x4 模式下的背景资源 ID
-         *
-         * @param id 背景颜色的 ID，从 0 到 4 分别表示黄、蓝、白、绿、红五种颜色
-         * @return 给定 id 对应的小部件在 4x4 模式下的背景资源 ID
-         */
-        public static int getWidget4xBgResource(int id) {
-            return BG_4X_RESOURCES[id];
-        }
-
-    }
-
-    public static class TextAppearanceResources {
-        /**
-         * 文字外观资源 ID 数组
-         */
-        private final static int [] TEXTAPPEARANCE_RESOURCES = new int [] {
-                R.style.TextAppearanceNormal,
-                R.style.TextAppearanceMedium,
-                R.style.TextAppearanceLarge,
-                R.style.TextAppearanceSuper
-        };
-
-        /**
-         * 获取给定 id 对应的文字外观资源 ID
-         *
-         * @param id 文字外观的 ID，从 0 到 3 分别表示 Normal、Medium、Large、Super 四种大小
-         * @return 给定 id 对应的文字外观资源 ID
-         */
-        public static int getTexAppearanceResource(int id) {
-            /**
-             * HACKME: 修复在共享偏好中存储资源 ID 的 bug。
-             * 在某些情况下，id 可能大于资源数组的长度，在这种情况下，
-             * 返回 {@link ResourceParser#BG_DEFAULT_FONT_SIZE}
-             */
-            if (id >= TEXTAPPEARANCE_RESOURCES.length) {
-                return BG_DEFAULT_FONT_SIZE;
-            }
-            return TEXTAPPEARANCE_RESOURCES[id];
-        }
-
-        /**
-         * 获取文字外观资源 ID 数组的长度
-         *
-         * @return 文字外观资源 ID 数组的长度
-         */
-        public static int getResourcesSize() {
-            return TEXTAPPEARANCE_RESOURCES.length;
-        }
-
-    }
-}