diff --git a/doc/精读报告.zip b/doc/精读报告.zip new file mode 100644 index 0000000..a20b72a Binary files /dev/null and b/doc/精读报告.zip differ diff --git a/src/230340117蒋媞.txt b/src/230340117蒋媞.txt new file mode 100644 index 0000000..f592fc1 --- /dev/null +++ b/src/230340117蒋媞.txt @@ -0,0 +1,801 @@ +1.对于gtask->remote +/* + * 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.app.Service; +import android.content.Context; +import android.content.Intent; +import android.os.Bundle; +import android.os.IBinder; + +public class GTaskSyncService extends Service { + // 用于在 Intent 中传递同步动作类型的键名 + public final static String ACTION_STRING_NAME = "sync_action_type"; + // 启动同步的动作类型 + public final static int ACTION_START_SYNC = 0; + // 取消同步的动作类型 + public final static int ACTION_CANCEL_SYNC = 1; + // 无效动作类型 + public final static int ACTION_INVALID = 2; + // 广播的名称，用于发送同步状态和进度信息 + public final static String GTASK_SERVICE_BROADCAST_NAME = "net.micode.notes.gtask.remote.gtask_sync_service"; + // 广播中表示是否正在同步的键名 + public final static String GTASK_SERVICE_BROADCAST_IS_SYNCING = "isSyncing"; + // 广播中表示同步进度消息的键名 + public final static String GTASK_SERVICE_BROADCAST_PROGRESS_MSG = "progressMsg"; + + // 用于执行同步任务的异步任务实例 + private static GTaskASyncTask mSyncTask = null; + // 存储同步进度消息 + private static String mSyncProgress = ""; + + // 启动同步的方法 + private void startSync() { + // 如果同步任务未在运行 + if (mSyncTask == null) { + // 创建一个新的同步任务实例，并传入上下文和完成监听器 + mSyncTask = new GTaskASyncTask(this, new GTaskASyncTask.OnCompleteListener() { + public void onComplete() { + // 同步完成后，将任务实例置为 null + mSyncTask = null; + // 发送广播，通知同步已完成 + sendBroadcast(""); + // 停止服务 + stopSelf(); + } + }); + // 发送广播，通知同步开始 + sendBroadcast(""); + // 执行同步任务 + mSyncTask.execute(); + } + } + + // 取消同步的方法 + private void cancelSync() { + // 如果同步任务正在运行 + if (mSyncTask != null) { + // 调用取消同步的方法 + mSyncTask.cancelSync(); + } + } + + // 服务创建时调用的方法 + @Override + public void onCreate() { + // 初始化同步任务实例为 null + mSyncTask = null; + } + + // 服务启动时调用的方法 + @Override + public int onStartCommand(Intent intent, int flags, int startId) { + // 获取 Intent 中的额外数据 + Bundle bundle = intent.getExtras(); + if (bundle != null && bundle.containsKey(ACTION_STRING_NAME)) { + // 根据传入的动作类型执行相应操作 + switch (bundle.getInt(ACTION_STRING_NAME, ACTION_INVALID)) { + case ACTION_START_SYNC: + // 启动同步 + startSync(); + break; + case ACTION_CANCEL_SYNC: + // 取消同步 + cancelSync(); + break; + default: + break; + } + // 服务被杀死后会自动重启 + return START_STICKY; + } + return super.onStartCommand(intent, flags, startId); + } + + // 系统内存不足时调用的方法 + @Override + public void onLowMemory() { + // 如果同步任务正在运行 + if (mSyncTask != null) { + // 取消同步任务 + mSyncTask.cancelSync(); + } + } + + // 绑定服务时调用的方法，这里返回 null 表示不支持绑定 + public IBinder onBind(Intent intent) { + return null; + } + + // 发送广播的方法，用于通知同步状态和进度 + public void sendBroadcast(String msg) { + // 更新同步进度消息 + mSyncProgress = msg; + // 创建一个广播 Intent + Intent intent = new Intent(GTASK_SERVICE_BROADCAST_NAME); + // 添加是否正在同步的信息 + intent.putExtra(GTASK_SERVICE_BROADCAST_IS_SYNCING, mSyncTask != null); + // 添加同步进度消息 + intent.putExtra(GTASK_SERVICE_BROADCAST_PROGRESS_MSG, msg); + // 发送广播 + sendBroadcast(intent); + } + + // 静态方法，用于启动同步服务 + public static void startSync(Activity activity) { + // 设置 GTaskManager 的活动上下文 + GTaskManager.getInstance().setActivityContext(activity); + // 创建一个启动服务的 Intent + Intent intent = new Intent(activity, GTaskSyncService.class); + // 添加启动同步的动作类型 + intent.putExtra(GTaskSyncService.ACTION_STRING_NAME, GTaskSyncService.ACTION_START_SYNC); + // 启动服务 + activity.startService(intent); + } + + // 静态方法，用于取消同步服务 + public static void cancelSync(Context context) { + // 创建一个启动服务的 Intent + Intent intent = new Intent(context, GTaskSyncService.class); + // 添加取消同步的动作类型 + intent.putExtra(GTaskSyncService.ACTION_STRING_NAME, GTaskSyncService.ACTION_CANCEL_SYNC); + // 启动服务 + context.startService(intent); + } + + // 静态方法，用于检查是否正在同步 + public static boolean isSyncing() { + return mSyncTask != null; + } + + // 静态方法，用于获取同步进度消息 + public static String getProgressString() { + return mSyncProgress; + } +} +/* + * 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 { + // 同步通知的 ID + private static int GTASK_SYNC_NOTIFICATION_ID = 5234235; + + // 同步完成监听器接口 + public interface OnCompleteListener { + void onComplete(); + } + + // 上下文对象 + private Context mContext; + // 通知管理器 + private NotificationManager mNotifiManager; + // GTaskManager 实例 + private GTaskManager mTaskManager; + // 同步完成监听器 + private OnCompleteListener mOnCompleteListener; + + // 构造函数，初始化上下文、监听器、通知管理器和 GTaskManager + public GTaskASyncTask(Context context, OnCompleteListener listener) { + mContext = context; + mOnCompleteListener = listener; + mNotifiManager = (NotificationManager) mContext + .getSystemService(Context.NOTIFICATION_SERVICE); + mTaskManager = GTaskManager.getInstance(); + } + + // 取消同步的方法 + public void cancelSync() { + // 调用 GTaskManager 的取消同步方法 + mTaskManager.cancelSync(); + } + + // 发布同步进度的方法 + public void publishProgess(String message) { + // 调用 AsyncTask 的 publishProgress 方法发布进度 + publishProgress(new String[] { + message + }); + } + + // 显示通知的方法 + private void showNotification(int tickerId, String content) { + PendingIntent pendingIntent; + // 根据通知类型设置不同的 PendingIntent + if (tickerId != R.string.ticker_success) { + pendingIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext, + NotesPreferenceActivity.class), PendingIntent.FLAG_IMMUTABLE); + } else { + pendingIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext, + NotesListActivity.class), PendingIntent.FLAG_IMMUTABLE); + } + // 创建通知构建器 + Notification.Builder builder = new Notification.Builder(mContext) + .setAutoCancel(true) + .setContentTitle(mContext.getString(R.string.app_name)) + .setContentText(content) + .setContentIntent(pendingIntent) + .setWhen(System.currentTimeMillis()) + .setOngoing(true); + // 获取通知实例 + Notification notification = builder.getNotification(); + // 发送通知 + mNotifiManager.notify(GTASK_SYNC_NOTIFICATION_ID, notification); + } + + // 异步任务在后台执行的方法 + @Override + protected Integer doInBackground(Void... unused) { + // 发布正在登录的进度消息 + publishProgess(mContext.getString(R.string.sync_progress_login, NotesPreferenceActivity + .getSyncAccountName(mContext))); + // 调用 GTaskManager 的同步方法进行同步 + return mTaskManager.sync(mContext, this); + } + + // 异步任务进度更新时调用的方法 + @Override + protected void onProgressUpdate(String... progress) { + // 显示同步中的通知 + showNotification(R.string.ticker_syncing, progress[0]); + // 如果上下文是 GTaskSyncService 类型 + if (mContext instanceof GTaskSyncService) { + // 调用 GTaskSyncService 的发送广播方法 + ((GTaskSyncService) mContext).sendBroadcast(progress[0]); + } + } + + // 异步任务完成后调用的方法 + @Override + protected void onPostExecute(Integer result) { + // 根据同步结果显示不同的通知 + if (result == GTaskManager.STATE_SUCCESS) { + showNotification(R.string.ticker_success, mContext.getString( + R.string.success_sync_account, mTaskManager.getSyncAccount())); + // 设置最后同步时间 + 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)); + } + // 如果监听器不为空 + if (mOnCompleteListener != null) { + // 启动一个新线程调用监听器的完成方法 + new Thread(new Runnable() { + public void run() { + mOnCompleteListener.onComplete(); + } + }).start(); + } + } +} +/* + * 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 { + // 日志标签 + private static final String TAG = GTaskManager.class.getSimpleName(); + // 同步成功状态 + public static final int STATE_SUCCESS = 0; + // 网络错误状态 + public static final int STATE_NETWORK_ERROR = 1; + // 内部错误状态 + public static final int STATE_INTERNAL_ERROR = 2; + // 同步正在进行状态 + public static final int STATE_SYNC_IN_PROGRESS = 3; + // 同步取消状态 + public static final int STATE_SYNC_CANCELLED = 4; + // 单例实例 + private static GTaskManager mInstance = null; + // 活动上下文 + private Activity mActivity; + // 上下文 + private Context mContext; + // 内容解析器 + private ContentResolver mContentResolver; + // 是否正在同步的标志 + private boolean mSyncing; + // 是否取消同步的标志 + private boolean mCancelled; + // 存储任务列表的哈希表 + private HashMap mGTaskListHashMap; + // 存储任务节点的哈希表 + private HashMap mGTaskHashMap; + // 存储元数据的哈希表 + private HashMap mMetaHashMap; + // 元数据任务列表 + private TaskList mMetaList; + // 存储本地已删除笔记 ID 的集合 + private HashSet mLocalDeleteIdMap; + // 存储 Google 任务 ID 到本地笔记 ID 的映射 + private HashMap mGidToNid; + // 存储本地笔记 ID 到 Google 任务 ID 的映射 + private HashMap mNidToGid; + + // 私有构造函数，实现单例模式 + private GTaskManager() { + mSyncing = false; + mCancelled = false; + mGTaskListHashMap = new HashMap(); + mGTaskHashMap = new HashMap(); + mMetaHashMap = new HashMap(); + mMetaList = null; + mLocalDeleteIdMap = new HashSet(); + mGidToNid = new HashMap(); + mNidToGid = new HashMap(); + } + + // 获取单例实例的方法 + public static synchronized GTaskManager getInstance() { + if (mInstance == null) { + mInstance = new GTaskManager(); + } + return mInstance; + } + + // 设置活动上下文的方法 + public synchronized void setActivityContext(Activity activity) { + // 用于获取认证令牌 + mActivity = activity; + } + + // 同步方法 + public int sync(Context context, GTaskASyncTask asyncTask) { + // 如果正在同步，返回同步进行中的状态 + if (mSyncing) { + Log.d(TAG, "Sync is in progress"); + return STATE_SYNC_IN_PROGRESS; + } + mContext = context; + mContentResolver = mContext.getContentResolver(); + mSyncing = true; + mCancelled = false; + // 清空各种存储数据的集合 + mGTaskListHashMap.clear(); + mGTaskHashMap.clear(); + mMetaHashMap.clear(); + mLocalDeleteIdMap.clear(); + mGidToNid.clear(); + mNidTo +2.对于widget +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.micode.notes.widget; +import android.app.PendingIntent; +import android.appwidget.AppWidgetManager; +import android.appwidget.AppWidgetProvider; +import android.content.ContentValues; +import android.content.Context; +import android.content.Intent; +import android.database.Cursor; +import android.util.Log; +import android.widget.RemoteViews; + +import net.micode.notes.R; +import net.micode.notes.data.Notes; +import net.micode.notes.data.Notes.NoteColumns; +import net.micode.notes.tool.ResourceParser; +import net.micode.notes.ui.NoteEditActivity; +import net.micode.notes.ui.NotesListActivity; + +/** + * NoteWidgetProvider 是一个抽象类，继承自 AppWidgetProvider，用于处理便签小部件的通用逻辑。 + * 它提供了更新小部件和处理小部件删除的方法，同时定义了一些抽象方法供子类实现。 + */ +public abstract class NoteWidgetProvider extends AppWidgetProvider { + // 查询便签信息时使用的投影，指定要查询的列 + public static final String [] PROJECTION = new String [] { + NoteColumns.ID, + NoteColumns.BG_COLOR_ID, + NoteColumns.SNIPPET + }; + + // 投影中各列的索引 + public static final int COLUMN_ID = 0; + public static final int COLUMN_BG_COLOR_ID = 1; + public static final int COLUMN_SNIPPET = 2; + + // 日志标签 + private static final String TAG = "NoteWidgetProvider"; + + /** + * 当一个或多个小部件被删除时调用此方法。 + * 此方法会将对应小部件 ID 的便签的 widget_id 字段设置为无效值。 + * + * @param context 应用程序上下文 + * @param appWidgetIds 被删除的小部件的 ID 数组 + */ + @Override + public void onDeleted(Context context, int[] appWidgetIds) { + ContentValues values = new ContentValues(); + values.put(NoteColumns.WIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID); + // 遍历所有被删除的小部件 ID + for (int i = 0; i < appWidgetIds.length; i++) { + // 更新数据库中对应小部件 ID 的便签记录 + context.getContentResolver().update(Notes.CONTENT_NOTE_URI, + values, + NoteColumns.WIDGET_ID + "=?", + new String[] { String.valueOf(appWidgetIds[i])}); + } + } + + /** + * 根据小部件 ID 获取便签小部件的信息。 + * 从数据库中查询指定小部件 ID 且不在回收站的便签信息。 + * + * @param context 应用程序上下文 + * @param widgetId 小部件的 ID + * @return 包含查询结果的 Cursor 对象 + */ + private Cursor getNoteWidgetInfo(Context context, int widgetId) { + return context.getContentResolver().query(Notes.CONTENT_NOTE_URI, + PROJECTION, + NoteColumns.WIDGET_ID + "=? AND " + NoteColumns.PARENT_ID + "<>?", + new String[] { String.valueOf(widgetId), String.valueOf(Notes.ID_TRASH_FOLER) }, + null); + } + + /** + * 更新小部件的信息，默认不使用隐私模式。 + * + * @param context 应用程序上下文 + * @param appWidgetManager 小部件管理器 + * @param appWidgetIds 要更新的小部件的 ID 数组 + */ + protected void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { + update(context, appWidgetManager, appWidgetIds, false); + } + + /** + * 更新小部件的信息，可以选择是否使用隐私模式。 + * + * @param context 应用程序上下文 + * @param appWidgetManager 小部件管理器 + * @param appWidgetIds 要更新的小部件的 ID 数组 + * @param privacyMode 是否使用隐私模式 + */ + private void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds, + boolean privacyMode) { + // 遍历所有要更新的小部件 ID + for (int i = 0; i < appWidgetIds.length; i++) { + if (appWidgetIds[i] != AppWidgetManager.INVALID_APPWIDGET_ID) { + // 默认背景颜色 ID + int bgId = ResourceParser.getDefaultBgId(context); + // 便签摘要 + String snippet = ""; + // 创建一个意图，用于启动便签编辑活动 + Intent intent = new Intent(context, NoteEditActivity.class); + intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP); + intent.putExtra(Notes.INTENT_EXTRA_WIDGET_ID, appWidgetIds[i]); + intent.putExtra(Notes.INTENT_EXTRA_WIDGET_TYPE, getWidgetType()); + + // 获取便签小部件的信息 + Cursor c = getNoteWidgetInfo(context, appWidgetIds[i]); + if (c != null && c.moveToFirst()) { + if (c.getCount() > 1) { + // 记录错误日志，当出现多个相同小部件 ID 的便签时 + Log.e(TAG, "Multiple message with same widget id:" + appWidgetIds[i]); + c.close(); + return; + } + // 获取便签摘要 + snippet = c.getString(COLUMN_SNIPPET); + // 获取背景颜色 ID + bgId = c.getInt(COLUMN_BG_COLOR_ID); + // 设置意图的额外数据，包括便签的 ID + intent.putExtra(Intent.EXTRA_UID, c.getLong(COLUMN_ID)); + intent.setAction(Intent.ACTION_VIEW); + } else { + // 如果没有找到对应的便签，显示默认提示信息 + snippet = context.getResources().getString(R.string.widget_havenot_content); + intent.setAction(Intent.ACTION_INSERT_OR_EDIT); + } + + if (c != null) { + c.close(); + } + + // 创建 RemoteViews 对象，用于更新小部件的视图 + RemoteViews rv = new RemoteViews(context.getPackageName(), getLayoutId()); + // 设置小部件的背景图片资源 + rv.setImageViewResource(R.id.widget_bg_image, getBgResourceId(bgId)); + intent.putExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, bgId); + + // 生成用于启动小部件宿主的 PendingIntent + PendingIntent pendingIntent = null; + if (privacyMode) { + // 在隐私模式下，显示隐私模式提示信息 + rv.setTextViewText(R.id.widget_text, + context.getString(R.string.widget_under_visit_mode)); + pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], new Intent( + context, NotesListActivity.class), PendingIntent.FLAG_UPDATE_CURRENT); + } else { + // 正常模式下，显示便签摘要 + rv.setTextViewText(R.id.widget_text, snippet); + pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], intent, + PendingIntent.FLAG_UPDATE_CURRENT); + } + + // 设置小部件文本视图的点击事件 + rv.setOnClickPendingIntent(R.id.widget_text, pendingIntent); + // 更新小部件 + appWidgetManager.updateAppWidget(appWidgetIds[i], rv); + } + } + } + + /** + * 获取指定背景颜色 ID 对应的背景资源 ID。 + * 此方法为抽象方法，需要子类实现。 + * + * @param bgId 背景颜色 ID + * @return 背景资源 ID + */ + protected abstract int getBgResourceId(int bgId); + + /** + * 获取小部件的布局资源 ID。 + * 此方法为抽象方法，需要子类实现。 + * + * @return 布局资源 ID + */ + protected abstract int getLayoutId(); + + /** + * 获取小部件的类型。 + * 此方法为抽象方法，需要子类实现。 + * + * @return 小部件的类型 + */ + protected abstract int getWidgetType(); +} +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.micode.notes.widget; + +import android.appwidget.AppWidgetManager; +import android.content.Context; + +import net.micode.notes.R; +import net.micode.notes.data.Notes; +import net.micode.notes.tool.ResourceParser; + +/** + * NoteWidgetProvider_2x 是 NoteWidgetProvider 的子类，用于处理 2x 大小的便签小部件。 + */ +public class NoteWidgetProvider_2x extends NoteWidgetProvider { + /** + * 当小部件需要更新时调用此方法。 + * 调用父类的 update 方法来更新小部件。 + * + * @param context 应用程序上下文 + * @param appWidgetManager 小部件管理器 + * @param appWidgetIds 要更新的小部件的 ID 数组 + */ + @Override + public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { + super.update(context, appWidgetManager, appWidgetIds); + } + + /** + * 获取 2x 小部件的布局资源 ID。 + * + * @return 布局资源 ID + */ + @Override + protected int getLayoutId() { + return R.layout.widget_2x; + } + + /** + * 获取 2x 小部件指定背景颜色 ID 对应的背景资源 ID。 + * + * @param bgId 背景颜色 ID + * @return 背景资源 ID + */ + @Override + protected int getBgResourceId(int bgId) { + return ResourceParser.WidgetBgResources.getWidget2xBgResource(bgId); + } + + /** + * 获取 2x 小部件的类型。 + * + * @return 小部件的类型 + */ + @Override + protected int getWidgetType() { + return Notes.TYPE_WIDGET_2X; + } +} +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.micode.notes.widget; + +import android.appwidget.AppWidgetManager; +import android.content.Context; + +import net.micode.notes.R; +import net.micode.notes.data.Notes; +import net.micode.notes.tool.ResourceParser; + +/** + * NoteWidgetProvider_4x 是 NoteWidgetProvider 的子类，用于处理 4x 大小的便签小部件。 + */ +public class NoteWidgetProvider_4x extends NoteWidgetProvider { + /** + * 当小部件需要更新时调用此方法。 + * 调用父类的 update 方法来更新小部件。 + * + * @param context 应用程序上下文 + * @param appWidgetManager 小部件管理器 + * @param appWidgetIds 要更新的小部件的 ID 数组 + */ + @Override + public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { + super.update(context, appWidgetManager, appWidgetIds); + } + + /** + * 获取 4x 小部件的布局资源 ID。 + * + * @return 布局资源 ID + */ + protected int getLayoutId() { + return R.layout.widget_4x; + } + + /** + * 获取 4x 小部件指定背景颜色 ID 对应的背景资源 ID。 + * + * @param bgId 背景颜色 ID + * @return 背景资源 ID + */ + @Override + protected int getBgResourceId(int bgId) { + return ResourceParser.WidgetBgResources.getWidget4xBgResource(bgId); + } + + /** + * 获取 4x 小部件的类型。 + * + * @return 小部件的类型 + */ + @Override + protected int getWidgetType() { + return Notes.TYPE_WIDGET_4X; + } +} diff --git a/src/230340137毛鑫宇.txt b/src/230340137毛鑫宇.txt new file mode 100644 index 0000000..d6c79a5 --- /dev/null +++ b/src/230340137毛鑫宇.txt @@ -0,0 +1,1284 @@ +（1） 类名：Contact +// Contact类，用于处理联系人相关操作 +public class Contact { + // 用于缓存联系人信息的HashMap，键为电话号码，值为联系人姓名 + private static HashMap sContactCache; + // 日志标签，用于在日志中标识该类相关的信息 + private static final String TAG = "Contact"; + // 查询联系人ID的SQL语句选择条件，用于筛选符合条件的联系人 + private static final String CALLER_ID_SELECTION = "PHONE_NUMBERS_EQUAL(" + Phone.NUMBER + + ",?) AND " + Data.MIMETYPE + "='" + Phone.CONTENT_ITEM_TYPE + "'" + + " AND " + Data.RAW_CONTACT_ID + " IN " + + "(SELECT raw_contact_id " + + " FROM phone_lookup" + + " WHERE min_match = '+')"; + + // 根据电话号码获取联系人姓名的方法 + public static String getContact(Context context, String phoneNumber) { + // 若缓存为空，则初始化缓存 + if (sContactCache == null) { + sContactCache = new HashMap(); + } + // 若缓存中已存在该电话号码对应的联系人姓名，则直接返回 + if (sContactCache.containsKey(phoneNumber)) { + return sContactCache.get(phoneNumber); + } + // 将查询条件中的“+”替换为电话号码的最小匹配格式 + String selection = CALLER_ID_SELECTION.replace("+", + PhoneNumberUtils.toCallerIDMinMatch(phoneNumber)); + // 通过内容解析器查询联系人数据库 + Cursor cursor = context.getContentResolver().query( + Data.CONTENT_URI, + new String[]{Phone.DISPLAY_NAME}, + selection, + new String[]{phoneNumber}, + null); + // 若查询结果不为空且游标能移动到第一条记录 + if (cursor != null && cursor.moveToFirst()) { + try { + // 获取联系人姓名 + String name = cursor.getString(0); + // 将联系人姓名存入缓存 + sContactCache.put(phoneNumber, name); + return name; + } catch (IndexOutOfBoundsException e) { + // 若获取字符串时发生索引越界异常，记录日志 + Log.e(TAG, " Cursor get string error " + e.toString()); + return null; + } finally { + // 关闭游标，释放资源 + cursor.close(); + } + } else { + // 若未找到匹配的联系人，记录日志 + Log.d(TAG, "No contact matched with number:" + phoneNumber); + return null; + } + } +} + +（2） 类名：Notes +// Notes类，定义便签和文件夹相关的常量和接口 +public class Notes { + // 内容提供者的权限名 + public static final String AUTHORITY = "micode_notes"; + // 日志标签 + public static final String TAG = "Notes"; + // 便签类型 + public static final int TYPE_NOTE = 0; + // 文件夹类型 + public static final int TYPE_FOLDER = 1; + // 系统类型 + public static final int TYPE_SYSTEM = 2; + // 根文件夹ID + public static final int ID_ROOT_FOLDER = 0; + // 临时文件夹ID + public static final int ID_TEMPARAY_FOLDER = -1; + // 通话记录文件夹ID + public static final int ID_CALL_RECORD_FOLDER = -2; + // 回收站文件夹ID + public static final int ID_TRASH_FOLER = -3; + // 便签提醒时间的Intent额外字段名 + public static final String INTENT_EXTRA_ALERT_DATE = "net.micode.notes.alert_date"; + // 便签背景颜色ID的Intent额外字段名 + public static final String INTENT_EXTRA_BACKGROUND_ID = "net.micode.notes.background_color_id"; + // 便签小部件ID的Intent额外字段名 + public static final String INTENT_EXTRA_WIDGET_ID = "net.micode.notes.widget_id"; + // 便签小部件类型的Intent额外字段名 + public static final String INTENT_EXTRA_WIDGET_TYPE = "net.micode.notes.widget_type"; + // 文件夹ID的Intent额外字段名 + public static final String INTENT_EXTRA_FOLDER_ID = "net.micode.notes.folder_id"; + // 通话日期的Intent额外字段名 + public static final String INTENT_EXTRA_CALL_DATE = "net.micode.notes.call_date"; + // 无效的小部件类型 + public static final int TYPE_WIDGET_INVALIDE = -1; + // 2x尺寸的小部件类型（此处代码未完整展示相关内容，假设后续有相关逻辑） + public static final int TYPE_WIDGET_2X = 2; +} + +（3） 类名：NotesDatabaseHelper + import android.content.Context; +import android.database.sqlite.SQLiteDatabase; +import android.database.sqlite.SQLiteOpenHelper; + +// NotesDatabaseHelper类，负责创建和管理数据库表及相关触发器 +public class NotesDatabaseHelper extends SQLiteOpenHelper { + // 数据库名称 + private static final String DATABASE_NAME = "notes.db"; + // 数据库版本 + private static final int DATABASE_VERSION = 1; + + // 便签表名称 + public static final String TABLE_NOTE = "note"; + // 数据记录表名称 + public static final String TABLE_DATA = "data"; + + // 构造函数，初始化数据库帮助类 + public NotesDatabaseHelper(Context context) { + super(context, DATABASE_NAME, null, DATABASE_VERSION); + } + + // 创建数据库表和触发器 + @Override + public void onCreate(SQLiteDatabase db) { + // 创建便签表的SQL语句 + String createNoteTable = "CREATE TABLE " + TABLE_NOTE + " (" + + "id INTEGER PRIMARY KEY AUTOINCREMENT, " + + "parent_id INTEGER, " + + "type INTEGER, " + + "created_date LONG, " + + "modified_date LONG, " + + "snippet TEXT, " + + "alerted_date LONG, " + + "bg_color_id INTEGER, " + + "widget_id INTEGER, " + + "widget_type INTEGER, " + + "local_modified INTEGER" + + ")"; + db.execSQL(createNoteTable); + + // 创建数据记录表的SQL语句 + String createDataTable = "CREATE TABLE " + TABLE_DATA + " (" + + "id INTEGER PRIMARY KEY AUTOINCREMENT, " + + "note_id INTEGER, " + + "mime_type TEXT, " + + "content TEXT, " + + "data1 TEXT, " + + "data2 TEXT, " + + "data3 TEXT, " + + "data4 TEXT" + + ")"; + db.execSQL(createDataTable); + + // 假设这里添加一些触发器创建语句（如果有相关需求） + // String createTrigger = "CREATE TRIGGER..."; + // db.execSQL(createTrigger); + } + + // 数据库升级时的操作 + @Override + public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { + // 简单示例，直接删除旧表并重新创建 + db.execSQL("DROP TABLE IF EXISTS " + TABLE_NOTE); + db.execSQL("DROP TABLE IF EXISTS " + TABLE_DATA); + onCreate(db); + } +} + +（4） 类名：NotesProvider +import android.content.ContentProvider; +import android.content.ContentValues; +import android.content.UriMatcher; +import android.database.Cursor; +import android.database.sqlite.SQLiteDatabase; +import android.net.Uri; +import android.util.Log; + +// NotesProvider类，作为内容提供者，对外提供统一的数据访问接口 +public class NotesProvider extends ContentProvider { + // 用于匹配Uri的UriMatcher + private static final UriMatcher sUriMatcher = new UriMatcher(UriMatcher.NO_MATCH); + // 匹配便签Uri的代码 + private static final int NOTES = 1; + // 匹配数据Uri的代码 + private static final int DATA = 2; + + // 数据库帮助类实例 + private NotesDatabaseHelper mDbHelper; + + // 初始化UriMatcher + static { + sUriMatcher.addURI(Notes.AUTHORITY, "notes", NOTES); + sUriMatcher.addURI(Notes.AUTHORITY, "data", DATA); + } + + // 初始化内容提供者 + @Override + public boolean onCreate() { + mDbHelper = new NotesDatabaseHelper(getContext()); + return true; + } + + // 查询数据 + @Override + public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) { + SQLiteDatabase db = mDbHelper.getReadableDatabase(); + Cursor cursor; + switch (sUriMatcher.match(uri)) { + case NOTES: + cursor = db.query(NotesDatabaseHelper.TABLE_NOTE, projection, selection, selectionArgs, null, null, sortOrder); + break; + case DATA: + cursor = db.query(NotesDatabaseHelper.TABLE_DATA, projection, selection, selectionArgs, null, null, sortOrder); + break; + default: + throw new IllegalArgumentException("Unknown URI " + uri); + } + return cursor; + } + + // 插入数据 + @Override + public Uri insert(Uri uri, ContentValues values) { + SQLiteDatabase db = mDbHelper.getWritableDatabase(); + long id; + switch (sUriMatcher.match(uri)) { + case NOTES: + id = db.insert(NotesDatabaseHelper.TABLE_NOTE, null, values); + break; + case DATA: + id = db.insert(NotesDatabaseHelper.TABLE_DATA, null, values); + break; + default: + throw new IllegalArgumentException("Unknown URI " + uri); + } + return ContentUris.withAppendedId(uri, id); + } + + // 更新数据 + @Override + public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) { + SQLiteDatabase db = mDbHelper.getWritableDatabase(); + int count; + switch (sUriMatcher.match(uri)) { + case NOTES: + count = db.update(NotesDatabaseHelper.TABLE_NOTE, values, selection, selectionArgs); + break; + case DATA: + count = db.update(NotesDatabaseHelper.TABLE_DATA, values, selection, selectionArgs); + break; + default: + throw new IllegalArgumentException("Unknown URI " + uri); + } + return count; + } + + // 删除数据 + @Override + public int delete(Uri uri, String selection, String[] selectionArgs) { + SQLiteDatabase db = mDbHelper.getWritableDatabase(); + int count; + switch (sUriMatcher.match(uri)) { + case NOTES: + count = db.delete(NotesDatabaseHelper.TABLE_NOTE, selection, selectionArgs); + break; + case DATA: + count = db.delete(NotesDatabaseHelper.TABLE_DATA, selection, selectionArgs); + break; + default: + throw new IllegalArgumentException("Unknown URI " + uri); + } + return count; + } +} + +（5） 类名：note +// Note类，用于处理便签数据的核心操作 +public class Note { + // 存储便签差异值的ContentValues，用于更新便签时记录变化 + private ContentValues mNoteDiffValues; + // 存储便签具体数据的NoteData对象 + private NoteData mNoteData; + // 日志标签，用于在日志中标识该类相关的信息 + private static final String TAG = "Note"; + + // 创建新便签时，在数据库中生成新便签ID的方法 + public static synchronized long getNewNoteId(Context context, long folderId) { + // 创建用于插入数据库的ContentValues对象 + ContentValues values = new ContentValues(); + // 获取当前系统时间作为便签的创建时间和修改时间 + long createdTime = System.currentTimeMillis(); + values.put(NoteColumns.CREATED_DATE, createdTime); + values.put(NoteColumns.MODIFIED_DATE, createdTime); + // 设置便签类型为普通便签 + values.put(NoteColumns.TYPE, Notes.TYPE_NOTE); + // 标记为本地修改 + values.put(NoteColumns.LOCAL_MODIFIED, 1); + // 设置便签所属文件夹ID + values.put(NoteColumns.PARENT_ID, folderId); + // 通过内容解析器插入新便签数据，并获取返回的Uri + Uri uri = context.getContentResolver().insert(Notes.CONTENT_NOTE_URI, values); + long noteId = 0; + try { + // 从Uri的路径段中获取便签ID + noteId = Long.valueOf(uri.getPathSegments().get(1)); + } catch (NumberFormatException e) { + // 若获取ID时发生数字格式异常，记录日志 + Log.e(TAG, "Get note id error :" + e.toString()); + noteId = 0; + } + if (noteId == -1) { + // 若便签ID为-1，抛出异常 + throw new IllegalStateException("Wrong note id:" + noteId); + } + return noteId; + } + + // Note类的构造函数，初始化便签差异值和便签数据对象 + public Note() { + mNoteDiffValues = new ContentValues(); + mNoteData = new NoteData(); + } + + // 设置便签的某个属性值，同时更新本地修改标记和修改时间 + public void setNoteValue(String key, String value) { + mNoteDiffValues.put(key, value); + mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1); + mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); + } + + // 设置文本便签的数据，同时更新本地修改标记和修改时间 + public void setTextData(String key, String value) { + mNoteData.setTextData(key, value); + } + + // 设置文本便签数据的ID，对ID进行合法性检查 + public void setTextDataId(long id) { + mNoteData.setTextDataId(id); + } + + // 获取文本便签数据的ID + public long getTextDataId() { + return mNoteData.mTextDataId; + } + + // 设置通话便签数据的ID，对ID进行合法性检查 + public void setCallDataId(long id) { + mNoteData.setCallDataId(id); + } + + // 设置通话便签的数据，同时更新本地修改标记和修改时间 + public void setCallData(String key, String value) { + mNoteData.setCallData(key, value); + } + + // 判断便签是否有本地修改，包括便签差异值和便签数据对象中的数据是否有变化 + public boolean isLocalModified() { + return mNoteDiffValues.size() > 0 || mNoteData.isLocalModified(); + } + + // 将便签数据同步到数据库的方法 + public boolean syncNote(Context context, long noteId) { + if (noteId <= 0) { + // 若便签ID不合法，抛出异常 + throw new IllegalArgumentException("Wrong note id:" + noteId); + } + if (!isLocalModified()) { + // 若便签没有本地修改，直接返回true + return true; + } + // 尝试更新便签数据到数据库 + if (context.getContentResolver().update( + ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), mNoteDiffValues, null, + null) == 0) { + // 若更新失败，记录日志 + Log.e(TAG, "Update note error, should not happen"); + // 不返回，继续执行后续操作 + } + mNoteDiffValues.clear(); + // 若便签数据有本地修改，将其推送到内容解析器 + if (mNoteData.isLocalModified() + && (mNoteData.pushIntoContentResolver(context, noteId) == null)) { + return false; + } + return true; + } + + // Note类的内部类，用于存储和处理便签的具体数据 + private class NoteData { + // 文本便签数据的ID + private long mTextDataId; + // 存储文本便签数据的ContentValues对象 + private ContentValues mTextDataValues; + // 通话便签数据的ID + private long mCallDataId; + // 存储通话便签数据的ContentValues对象 + private ContentValues mCallDataValues; + // 日志标签，用于在日志中标识该内部类相关的信息 + private static final String TAG = "NoteData"; + + // NoteData类的构造函数，初始化文本和通话便签数据对象及ID + public NoteData() { + mTextDataValues = new ContentValues(); + mCallDataValues = new ContentValues(); + mTextDataId = 0; + mCallDataId = 0; + } + + // 判断便签数据是否有本地修改，即文本或通话便签数据对象是否有数据变化 + boolean isLocalModified() { + return mTextDataValues.size() > 0 || mCallDataValues.size() > 0; + } + + // 设置文本便签数据的ID，对ID进行合法性检查 + void setTextDataId(long id) { + if(id <= 0) { + throw new IllegalArgumentException("Text data id + + +（6） 类名：WorkingNote +// WorkingNote类，管理便签在工作状态下的数据 +public class WorkingNote { + // 关联的Note对象，用于处理便签数据 + private Note mNote; + // 便签ID + private long mNoteId; + // 便签内容 + private String mContent; + // 便签模式 + private int mMode; + // 提醒日期 + private long mAlertDate; + // 修改日期 + private long mModifiedDate; + // 背景颜色ID + private int mBgColorId; + // 小部件ID + private int mWidgetId; + // 小部件类型 + private int mWidgetType; + // 文件夹ID + private long mFolderId; + // 上下文对象 + private Context mContext; + // 便签是否被删除的标志 + private boolean mIsDeleted; + // 便签设置状态监听器 + private NoteSettingChangedListener mNoteSettingStatusListener; + + // 用于查询便签数据的投影数组 + public static final String[] DATA_PROJECTION = new String[] { + DataColumns.ID, + DataColumns.CONTENT, + DataColumns.MIME_TYPE, + DataColumns.DATA1, + DataColumns.DATA2, + DataColumns.DATA3, + DataColumns.DATA4 + }; + + // 用于查询便签信息的投影数组 + 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 + }; + + // 数据ID在DATA_PROJECTION中的列索引 + private static final int DATA_ID_COLUMN = 0; + // 数据内容在DATA_PROJECTION中的列索引 + private static final int DATA_CONTENT_COLUMN = 1; + // 数据MIME类型在DATA_PROJECTION中的列索引 + private static final int DATA_MIME_TYPE_COLUMN = 2; + // 数据模式在DATA_PROJECTION中的列索引 + private static final int DATA_MODE_COLUMN = 3; + // 便签父文件夹ID在NOTE_PROJECTION中的列索引 + private static final int NOTE_PARENT_ID_COLUMN = 0; + // 便签提醒日期在NOTE_PROJECTION中的列索引 + private static final int NOTE_ALERTED_DATE_COLUMN = 1; + // 便签背景颜色ID在NOTE_PROJECTION中的列索引 + private static final int NOTE_BG_COLOR_ID_COLUMN = 2; + // 便签小部件ID在NOTE_PROJECTION中的列索引 + private static final int NOTE_WIDGET_ID_COLUMN = 3; + // 便签小部件类型在NOTE_PROJECTION中的列索引 + private static final int NOTE_WIDGET_TYPE_COLUMN = 4; + // 便签修改日期在NOTE_PROJECTION中的列索引 + private static final int NOTE_MODIFIED_DATE_COLUMN = 5; + + // 新建便签时的构造函数 + 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; + } + + // 加载已有便签时的构造函数 + private WorkingNote(Context context, long noteId, long folderId) { + mContext = context; + mNoteId = noteId; + mFolderId = folderId; + mIsDeleted = false; + mNote = new Note(); + loadNote(); + } + + // 加载便签的基本信息，如所属文件夹、背景颜色、小部件信息等 + 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(); + } + + // 加载便签的数据内容，如文本内容、通话记录数据等 + 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, " + +(7)类名：BackupUtils +/* + * 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; + +// BackupUtils类用于实现便签数据的备份功能，可将便签数据导出为文本文件存储到外部存储设备 +public class BackupUtils { + // 用于在日志中标记该类相关信息的标签 + private static final String TAG = "BackupUtils"; + // 单例实例，确保整个应用中只有一个BackupUtils实例 + private static BackupUtils sInstance; + + // 获取BackupUtils单例实例的方法，使用synchronized关键字保证线程安全 + public static synchronized BackupUtils getInstance(Context context) { + if (sInstance == null) { + sInstance = new BackupUtils(context); + } + return sInstance; + } + + // 表示备份或恢复操作的状态码 + // 当前SD卡未挂载 + public static final int STATE_SD_CARD_UNMOUONTED = 0; + // 备份文件不存在 + public static final int STATE_BACKUP_FILE_NOT_EXIST = 1; + // 数据格式损坏，可能被其他程序修改 + public static final int STATE_DATA_DESTROIED = 2; + // 运行时发生异常，导致恢复或备份失败 + public static final int STATE_SYSTEM_ERROR = 3; + // 备份或恢复成功 + public static final int STATE_SUCCESS = 4; + + // 用于将便签数据导出为文本的工具对象 + private TextExport mTextExport; + + // 构造函数，初始化TextExport对象 + private BackupUtils(Context context) { + mTextExport = new TextExport(context); + } + + // 检查外部存储设备（如SD卡）是否可用的方法 + private static boolean externalStorageAvailable() { + // 通过比较外部存储设备的状态是否为MEDIA_MOUNTED来判断是否可用 + return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState()); + } + + // 执行便签数据导出为文本文件的方法 + public int exportToText() { + return mTextExport.exportToText(); + } + + // 获取导出的文本文件名的方法 + public String getExportedTextFileName() { + return mTextExport.mFileName; + } + + // 获取导出的文本文件目录的方法 + public String getExportedTextFileDir() { + return mTextExport.mFileDirectory; + } + + // 内部类TextExport，负责具体的文本导出操作 + private static class TextExport { + // 用于查询便签信息的投影数组，指定要获取的便签字段 + private static final String[] NOTE_PROJECTION = { + NoteColumns.ID, + NoteColumns.MODIFIED_DATE, + NoteColumns.SNIPPET, + NoteColumns.TYPE + }; + // NOTE_PROJECTION数组中便签ID的索引 + private static final int NOTE_COLUMN_ID = 0; + // NOTE_PROJECTION数组中便签修改日期的索引 + private static final int NOTE_COLUMN_MODIFIED_DATE = 1; + // NOTE_PROJECTION数组中便签摘要（简短内容）的索引 + private static final int NOTE_COLUMN_SNIPPET = 2; + + // 用于查询便签数据的投影数组，指定要获取的数据字段 + private static final String[] DATA_PROJECTION = { + DataColumns.CONTENT, + DataColumns.MIME_TYPE, + DataColumns.DATA1, + DataColumns.DATA2, + DataColumns.DATA3, + DataColumns.DATA4 + }; + // DATA_PROJECTION数组中数据内容的索引 + private static final int DATA_COLUMN_CONTENT = 0; + // DATA_PROJECTION数组中数据MIME类型的索引 + private static final int DATA_COLUMN_MIME_TYPE = 1; + // DATA_PROJECTION数组中通话日期（针对通话便签）的索引 + private static final int DATA_COLUMN_CALL_DATE = 2; + // DATA_PROJECTION数组中电话号码（针对通话便签）的索引 + private static final int DATA_COLUMN_PHONE_NUMBER = 4; + + // 文本格式数组，从资源文件中获取，用于格式化导出的便签数据 + private final String[] TEXT_FORMAT; + // 文本格式数组中文件夹名称格式的索引 + private static final int FORMAT_FOLDER_NAME = 0; + // 文本格式数组中便签日期格式的索引 + private static final int FORMAT_NOTE_DATE = 1; + // 文本格式数组中便签内容格式的索引 + private static final int FORMAT_NOTE_CONTENT = 2; + + // 上下文对象，用于获取资源和进行内容解析等操作 + private Context mContext; + // 导出的文本文件名 + private String mFileName; + // 导出的文本文件目录 + private String mFileDirectory; + + // TextExport类的构造函数，初始化上下文和文本格式数组 + public TextExport(Context context) { + // 从资源文件中获取文本格式数组 + TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note); + mContext = context; + mFileName = ""; + mFileDirectory = ""; + } + + // 获取指定格式字符串的方法，根据索引从文本格式数组中获取相应格式 + private String getFormat(int id) { + return TEXT_FORMAT[id]; + } + + // 将指定文件夹及其包含的便签数据导出为文本的方法 + private void exportFolderToText(String folderId, PrintStream ps) { + // 通过内容解析器查询属于该文件夹的便签 + 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 { + // 打印便签的最后修改日期，使用指定的日期格式进行格式化 + ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format( + mContext.getString(R.string.format_datetime_mdhm), + notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE)))); + // 获取当前便签的ID + String noteId = notesCursor.getString(NOTE_COLUMN_ID); + // 导出该便签的数据 + exportNoteToText(noteId, ps); + } while (notesCursor.moveToNext()); + } + // 关闭游标，释放资源 + notesCursor.close(); + } + } + + // 将指定便签数据导出为文本的方法 + private void exportNoteToText(String noteId, PrintStream ps) { + // 通过内容解析器查询属于该便签的数据 + 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 { + // 获取数据的MIME类型，以判断便签类型 + String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE); + if (DataConstants.CALL_NOTE.equals(mimeType)) { + // 如果是通话便签，获取电话号码 + String phoneNumber = dataCursor.getString(DATA_COLUMN_PHONE_NUMBER); + // 获取通话日期 + long callDate = dataCursor.getLong(DATA_COLUMN_CALL_DATE); + // 获取通话附件位置（如果有） + String location = dataCursor.getString(DATA_COLUMN_CONTENT); + if (!TextUtils.isEmpty(phoneNumber)) { + // 打印电话号码，使用指定的便签内容格式 + ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), phoneNumber)); + } + // 打印通话日期，使用指定的便签内容格式和日期格式 + ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), DateFormat + .format(mContext.getString(R.string.format_datetime_mdhm), callDate))); + if (!TextUtils.isEmpty(location)) { + // 打印通话附件位置，使用指定的便签内容格式 + ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), location)); + } + } else if (DataConstants.NOTE.equals(mimeType)) { + // 如果是普通便签，获取便签内容 + String content = dataCursor.getString(DATA_COLUMN_CONTENT); + if (!TextUtils.isEmpty(content)) { + // 打印便签内容，使用指定的便签内容格式 + ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), content)); + } + } + } while (dataCursor.moveToNext()); + } + // 关闭游标，释放资源 + dataCursor.close(); + } + // 打印一个换行符，分隔不同便签的数据 + try { + ps.write(new byte[]{ + Character.LINE_SEPARATOR, Character.LETTER_NUMBER + }); + } catch (IOException e) { + // 如果写入换行符时发生I/O异常，记录错误日志 + Log.e(TAG, e.toString()); + } + } + + // 将便签数据导出为文本文件的主要方法 + public int exportToText() { + // 检查外部存储设备是否可用 + if (!externalStorageAvailable()) { + // 如果不可用，记录日志并返回SD卡未挂载的状态码 + Log.d(TAG, "Media was not mounted"); + return STATE_SD_CARD_UNMOUONTED; + } + // 获取用于写入导出文本的打印流 + PrintStream ps = getExportToTextPrintStream(); + if (ps == null) { + // 如果获取打印流失败，记录日志并返回系统错误状态码 + Log.e(TAG, "get print stream error"); + return STATE_SYSTEM_ERROR; + } + // 首先导出文件夹及其便签数据 + 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 { + // 获取文件夹名称 + String folderName = ""; + if (folderCursor.getLong(NOTE_COLUMN_ID) == Notes.ID_CALL_RECORD_FOLDER) { + // 如果是通话记录文件夹，使用特定的名称 + folderName = mContext.getString(R.string.call_record_folder_name); + } else { + // 否则，使用便签摘要作为文件夹名称 + folderName = folderCursor.getString(NOTE_COLUMN_SNIPPET); + } + if (!TextUtils.isEmpty(folderName)) { + // 打印文件夹名称，使用指定的文件夹名称格式 + ps.println(String.format(getFormat(FORMAT_FOLDER_NAME), folderName)); + } + // 获取文件夹ID + String folderId = folderCursor.getString(NOTE_COLUMN_ID); + // 导出该文件夹及其便签数据 + exportFolderToText(folderId, ps); + } while (folderCursor.moveToNext()); + } + // 关闭游标，释放资源 + folderCursor.close(); + } + // 导出根文件夹下的便签数据 + 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 { + // 打印便签的最后修改日期，使用指定的日期格式进行格式化 + ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format( + mContext.getString(R.string.format_datetime_mdhm), + noteCursor.getLong(NOTE_COLUMN_MODIFIED_DATE)))); + // 获取当前便签的ID + String noteId = noteCursor.getString(NOTE_COLUMN_ID); + // 导出该便签的数据 + exportNoteToText(noteId, ps); + } while (noteCursor.moveToNext()); + } + // 关闭游标，释放资源 + noteCursor.close(); + } + // 关闭打印流，完成导出操作 + ps.close(); + // 返回备份成功的状态码 + return STATE_SUCCESS; + } + + // 获取用于写入导出文本的打印流的方法 + private PrintStream getExportToTextPrintStream() { + // 生成用于存储导出数据的文件 + File file = generateFileMountedOnSDcard(mContext, R.string.file_path, + R.string.file_name_txt_format); + if (file == null) { + // 如果文件生成失败，记录日志并返回null + Log.e(TAG, "create file to exported failed"); + return null; + } + // 设置导出的文本文件名 + mFileName = file.getName(); + // 设置导出的文本文件目录 + mFileDirectory = mContext.getString(R.string.file_path); + PrintStream ps = null; + try { + // 创建文件输出流，并基于此创建打印流 + FileOutputStream fos = new FileOutputStream(file); + ps = new PrintStream(fos); + } catch (FileNotFoundException e) { + // 如果文件未找到，打印异常堆栈信息并返回null + e.printStackTrace(); + return null; + } catch (NullPointerException e) { + // 如果发生空指针异常，打印异常堆栈信息并返回null + e.printStackTrace(); + return null; + } + return ps; + } + } + + // 生成存储在SD卡上的文本文件的方法，用于存储导入的数据（这里主要用于备份导出文件） + private static File generateFileMountedOnSDcard(Context context, int filePathResId, int fileNameFormatResId) { + StringBuilder sb = new StringBuilder(); + // 添加外部存储设备的目录 + sb.append(Environment.getExternalStorageDirectory()); + // 添加文件路径资源对应的路径 + sb.append(context.getString(filePathResId)); + File filedir = new File(sb.toString()); + // 添加文件名格式资源对应的文件名，使用当前日期进行格式化 + sb.append(context.getString( + fileNameFormatResId, + DateFormat.format(context.getString(R.string.format_date_ymd), + System.currentTimeMillis()))); + File file = new File(sb.toString()); + try { + // 如果文件目录不存在，则创建目录 + if (!filedir.exists()) { + filedir.mkdir(); + } + // 如果文件不存在，则创建文件 + if (!file.exists()) { + file.createNewFile(); + } + return file; + } catch (SecurityException e) { + // 如果发生安全异常，打印异常堆栈信息 + e.printStackTrace(); + } catch (IOException e) { + // 如果发生I/O异常，打印异常堆栈信息 + e.printStackTrace(); + } + return null; + } +} +(8) 类名：DataUtils +/* + * 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.ContentProviderOperation; +import android.content.ContentProviderResult; +import android.content.ContentResolver; +import android.content.ContentUris; +import android.content.ContentValues; +import android.content.OperationApplicationException; +import android.database.Cursor; +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.NoteColumns; +import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute; + +import java.util.ArrayList; +import java.util.HashSet; + +// DataUtils类，提供一系列便签数据处理的工具方法 +public class DataUtils { + // 日志标签，用于在日志中标识该类相关的信息 + private static final String TAG = "DataUtils"; + + // 批量删除便签的方法 + public static void batchDeleteNotes(ContentResolver resolver, HashSet ids) { + // 如果便签ID集合为空，直接返回，不进行任何操作 + if (ids == null || ids.isEmpty()) { + return; + } + // 创建一个操作列表，用于批量执行内容提供者的操作 + ArrayList operationList = new ArrayList(); + // 遍历便签ID集合 + for (Long id : ids) { + // 构建删除操作，根据便签ID构建删除的Uri + ContentProviderOperation.Builder builder = ContentProviderOperation.newDelete( + ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); + // 将删除操作添加到操作列表中 + operationList.add(builder.build()); + } + try { + // 执行批量操作，将操作列表应用到内容解析器 + ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); + // 这里可以根据results做进一步处理，比如检查操作是否成功等，目前未做具体处理 + } catch (RemoteException e) { + // 如果发生远程异常（如与内容提供者通信失败），记录日志 + Log.e(TAG, "RemoteException in batchDeleteNotes: " + e.toString()); + } catch (OperationApplicationException e) { + // 如果操作应用发生异常（如操作格式错误等），记录日志 + Log.e(TAG, "OperationApplicationException in batchDeleteNotes: " + e.toString()); + } + } + + // 将便签移动到指定文件夹的方法 + public static void moveNoteToFolder(ContentResolver resolver, long id, long srcFolderId, long desFolderId) { + // 创建一个ContentValues对象，用于存储要更新的便签数据 + ContentValues values = new ContentValues(); + // 设置便签的父文件夹ID为目标文件夹ID，实现移动便签的操作 + values.put(NoteColumns.PARENT_ID, desFolderId); + try { + // 更新便签数据，根据便签ID构建更新的Uri，传入更新的值和空的筛选条件及参数 + resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null); + } catch (Exception e) { + // 如果更新过程中发生异常，记录日志 + Log.e(TAG, "Exception in moveNoteToFolder: " + e.toString()); + } + } + + // 检查指定便签ID是否存在于数据库中的方法 + public static boolean isNoteExist(ContentResolver resolver, long id) { + // 通过内容解析器查询便签数据，根据便签ID构建查询的Uri，指定要查询的列，筛选条件为便签ID + Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), + new String[]{NoteColumns.ID}, null, null, null); + // 初始化结果为false，表示默认认为便签不存在 + boolean result = false; + if (cursor != null) { + // 如果查询到数据（游标能够移动到第一条记录），说明便签存在，设置结果为true + if (cursor.moveToFirst()) { + result = true; + } + // 关闭游标，释放资源 + cursor.close(); + } + // 返回便签是否存在的结果 + return result; + } + + // 检查指定文件夹中是否存在便签的方法 + public static boolean isFolderHasNote(ContentResolver resolver, long folderId) { + // 构建查询条件，筛选出属于指定文件夹的便签 + String selection = NoteColumns.PARENT_ID + "=" + folderId; + // 通过内容解析器查询便签数据，传入查询的Uri、要查询的列、筛选条件和空的筛选参数 + Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, new String[]{NoteColumns.ID}, + selection, null, null); + // 初始化结果为false，表示默认认为文件夹中不存在便签 + boolean result = false; + if (cursor != null) { + // 如果查询到数据（游标能够移动到第一条记录），说明文件夹中存在便签，设置结果为true + if (cursor.moveToFirst()) { + result = true; + } + // 关闭游标，释放资源 + cursor.close(); + } + // 返回文件夹中是否存在便签的结果 + return result; + } + + // 获取便签的小部件属性的方法 + public static AppWidgetAttribute getNoteWidgetAttribute(ContentResolver resolver, long noteId) { + // 创建一个AppWidgetAttribute对象，用于存储便签的小部件属性 + AppWidgetAttribute attribute = new AppWidgetAttribute(); + // 通过内容解析器查询便签数据，根据便签ID构建查询的Uri，指定要查询的小部件ID和类型列 + Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), + new String[]{NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE}, null, null, null); + if (cursor != null) { + if (cursor.moveToFirst()) { + // 获取便签的小部件ID + attribute.widgetId = cursor.getInt(0); + // 获取便签的小部件类型 + attribute.widgetType = cursor.getInt(1); + } + // 关闭游标，释放资源 + cursor.close(); + } + // 返回便签的小部件属性对象 + return attribute; + } + + // 更新便签的小部件属性的方法 + public static void updateNoteWidgetAttribute(ContentResolver resolver, long noteId, int widgetId, int widgetType) { + // 创建一个ContentValues对象，用于存储要更新的小部件属性值 + ContentValues values = new ContentValues(); + // 设置便签的小部件ID + values.put(NoteColumns.WIDGET_ID, widgetId); + // 设置便签的小部件类型 + values.put(NoteColumns.WIDGET_TYPE, widgetType); + try { + // 更新便签数据，根据便签ID构建更新的Uri，传入更新的值和空的筛选条件及参数 + resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), values, null, null); + } catch (Exception e) { + // 如果更新过程中发生异常，记录日志 + Log.e(TAG, "Exception in updateNoteWidgetAttribute: " + e.toString()); + } + } + + // 处理通话便签数据的方法（假设是对通话便签数据进行一些特定处理） + public static void handleCallNoteData(ContentResolver resolver, long noteId, String phoneNumber, long callDate) { + // 创建一个ContentValues对象，用于存储通话便签的数据 + ContentValues values = new ContentValues(); + // 设置通话便签的数据MIME类型为通话便签类型 + values.put(Notes.DataColumns.MIME_TYPE, CallNote.CONTENT_ITEM_TYPE); + // 设置通话便签的电话号码 + values.put(Notes.DataColumns.DATA4, phoneNumber); + // 设置通话便签的通话日期 + values.put(Notes.DataColumns.DATA2, callDate); + // 设置通话便签所属的便签ID + values.put(Notes.DataColumns.NOTE_ID, noteId); + try { + // 插入通话便签数据到数据库，使用内容解析器插入数据 + resolver.insert(Notes.CONTENT_DATA_URI, values); + } catch (Exception e) { + // 如果插入过程中发生异常，记录日志 + Log.e(TAG, "Exception in handleCallNoteData: " + e.toString()); + } + } +} + +(9)类名：GTaskStringUtils +/* + * 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; + +// GTaskStringUtils类，定义与GTask相关的字符串常量，用于处理GTask相关的JSON数据解析和构建 +public class GTaskStringUtils { + // GTask JSON数据中action_id字段的名称 + public static final String GTASK_JSON_ACTION_ID = "action_id"; + // GTask JSON数据中resource_name字段的名称 + public static final String GTASK_JSON_RESOURCE_NAME = "resource_name"; + // GTask JSON数据中resource_type字段的名称 + public static final String GTASK_JSON_RESOURCE_TYPE = "resource_type"; + // GTask JSON数据中resource_id字段的名称 + public static final String GTASK_JSON_RESOURCE_ID = "resource_id"; + // GTask JSON数据中parent_id字段的名称 + public static final String GTASK_JSON_PARENT_ID = "parent_id"; + // GTask JSON数据中data字段的名称 + public static final String GTASK_JSON_DATA = "data"; + // GTask JSON数据中snippet字段的名称 + public static final String GTASK_JSON_SNIPPET = "snippet"; + // GTask JSON数据中type字段的名称 + public static final String GTASK_JSON_TYPE = "type"; + // GTask JSON数据中created字段的名称 + public static final String GTASK_JSON_CREATED = "created"; + // GTask JSON数据中modified字段的名称 + public static final String GTASK_JSON_MODIFIED = "modified"; + // GTask JSON数据中alerted字段的名称 + public static final String GTASK_JSON_ALERTED = "alerted"; + // GTask JSON数据中local_modified字段的名称 + public static final String GTASK_JSON_LOCAL_MODIFIED = "local_modified"; + // GTask JSON数据中bg_color_id字段的名称 + public static final String GTASK_JSON_BG_COLOR_ID = "bg_color_id"; + // GTask JSON数据中widget_id字段的名称 + public static final String GTASK_JSON_WIDGET_ID = "widget_id"; + // GTask JSON数据中widget_type字段的名称 + public static final String GTASK_JSON_WIDGET_TYPE = "widget_type"; + // GTask JSON数据中phone_number字段的名称 + public static final String GTASK_JSON_PHONE_NUMBER = "phone_number"; + // GTask JSON数据中call_date字段的名称 + public static final String GTASK_JSON_CALL_DATE = "call_date"; + + // 构造函数，私有化，防止该类被实例化，因为它只包含静态常量 + private GTaskStringUtils() { + // 空实现，该类不需要实例化 + } +} +(10)类名：ResourceParser +/* +* 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.content.SharedPreferences; +import android.graphics.drawable.Drawable; +import android.preference.PreferenceManager; +import android.util.Log; +import net.micode.notes.R; +import net.micode.notes.data.Notes; + +// ResourceParser类，解析应用资源，提供便签背景、文本样式等资源的获取方法 +public class ResourceParser { +// 日志标签，用于在日志中标识该类相关的信息 +private static final String TAG = "ResourceParser"; + +// 根据便签背景ID获取对应的Drawable资源（如背景图片）的方法 +public static Drawable getNoteBgResource(int id) { +Context context = AppGlobals.getApplication(); +Drawable bg = null; +switch (id) { +case Notes.ID_BACKGROUND_DEFAULT: +// 如果是默认背景ID，获取默认背景资源 +bg = context.getResources().getDrawable(R.drawable.bg_note_default); +break; +case Notes.ID_BACKGROUND_PURPLE: +// 如果是紫色背景ID，获取紫色背景资源 +bg = context.getResources().getDrawable(R.drawable.bg_note_purple); +break; +case Notes.ID_BACKGROUND_BLUE: +// 如果是蓝色背景ID，获取蓝色背景资源 +bg = context.getResources().getDrawable(R.drawable.bg_note_blue); +break; +case Notes.ID_BACKGROUND_GREEN: +// 如果是绿色背景ID，获取绿色背景资源 +bg = context.getResources().getDrawable(R.drawable.bg_note_green); +break; +case Notes.ID_BACKGROUND_YELLOW: +// 如果是黄色背景ID，获取黄色背景资源 +bg = context.getResources().getDrawable(R.drawable.bg_note_yellow); +break; +case Notes.ID_BACKGROUND_ORANGE: +// 如果是橙色背景ID，获取橙色背景资源 +bg = context.getResources().getDrawable(R.drawable.bg_note_orange); +break; +case Notes.ID_BACKGROUND_PINK: +// 如果是粉色背景ID，获取粉色背景资源 +bg = context.getResources().getDrawable(R.drawable.bg_note_pink); +break; +default: +// 如果背景ID不匹配任何已知的背景ID，获取默认背景资源 +bg = context.getResources().getDrawable(R.drawable.bg_note_default); +break; +} +return bg; +} + + // 根据便签背景ID获取对应的标题Drawable资源（如标题背景图片）的方法 + public static Drawable getNoteTitleBgResource(int id) { + Context context = AppGlobals.getApplication(); + Drawable bg = null; + switch (id) { + case Notes.ID_BACKGROUND_DEFAULT: + // 如果是默认背景ID，获取默认标题背景资源 + bg = context.getResources().getDrawable(R.drawable.bg_note_title_default); + break; + case Notes.ID_BACKGROUND_PURPLE: + // 如果是紫色背景ID，获取紫色标题背景资源 + bg = context.getResources().getDrawable(R.drawable.bg_note_title_purple); + break; + case Notes.ID_BACKGROUND_BLUE: + // 如果是蓝色背景ID，获取蓝色标题背景资源 + bg = context.getResources().getDrawable(R.drawable.bg_note_title_blue); + break; + case Notes.ID_BACKGROUND_GREEN: + // 如果是绿色背景ID，获取绿色标题背景资源 + bg = context.getResources().getDrawable(R.drawable.bg_note_title_green); + break; + case Notes.ID_BACKGROUND_YELLOW: + // 如果是黄色背景ID，获取黄色标题背景资源 + bg = context.getResources().getDrawable(R.drawable.bg_note_title_yellow); + break; + case Notes.ID_BACKGROUND_ORANGE: + // 如果是橙色背景ID，获取橙色标题背景资源 + bg = context.getResources().getDrawable(R.drawable.bg_note_title_orange); + break; + case Notes.ID_BACKGROUND_PINK: + // 如果是粉色背景ID，获取粉色标题背景资源 + bg = context.getResources().getDrawable(R.drawable.bg_note_title_pink); + break; + default: + // 如果背景ID不匹配任何已知的背景ID，获取默认标题背景资源 + bg = context.getResources().getDrawable(R.drawable.bg_note_title_default); + break; diff --git a/src/230340139李思锦.txt b/src/230340139李思锦.txt new file mode 100644 index 0000000..40dc8b7 --- /dev/null +++ b/src/230340139李思锦.txt @@ -0,0 +1,1639 @@ +（1） 类名：gtask>data>MetaData + 代码注释: + + +/* + * 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. + */ + +// 包名，表示这个类属于gtask.data包 +package net.micode.notes.gtask.data; + +// 导入必要的类 +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 +public class MetaData extends Task { + // 类的简单名称，用于日志打印 + private final static String TAG = MetaData.class.getSimpleName(); + + // 成员变量，用于存储与任务相关的gid + private String mRelatedGid = null; + + // 设置元数据的方法，接收gid和metaInfo对象 + public void setMeta(String gid, JSONObject metaInfo) { + try { + // 将gid放入metaInfo对象中 + metaInfo.put(GTaskStringUtils.META_HEAD_GTASK_ID, gid); + } catch (JSONException e) { + // 如果发生错误，打印错误日志 + Log.e(TAG, "failed to put related gid"); + } + // 将metaInfo对象转换为字符串并保存 + setNotes(metaInfo.toString()); + // 设置任务的名称 + setName(GTaskStringUtils.META_NOTE_NAME); + } + + // 获取与任务相关的gid + public String getRelatedGid() { + return mRelatedGid; + } + + // 重写方法，判断任务是否值得保存 + @Override + public boolean isWorthSaving() { + // 如果笔记内容不为空，则值得保存 + return getNotes() != null; + } + + // 重写方法，根据远程JSON设置内容 + @Override + public void setContentByRemoteJSON(JSONObject js) { + // 调用父类的方法 + super.setContentByRemoteJSON(js); + // 如果笔记内容不为空，则解析笔记内容 + if (getNotes() != null) { + try { + // 将笔记内容转换为JSONObject + JSONObject metaInfo = new JSONObject(getNotes().trim()); + // 从JSONObject中获取相关的gid + mRelatedGid = metaInfo.getString(GTaskStringUtils.META_HEAD_GTASK_ID); + } catch (JSONException e) { + // 如果发生错误，打印警告日志并设置mRelatedGid为null + Log.w(TAG, "failed to get related gid"); + mRelatedGid = null; + } + } + } + + // 重写方法，根据本地JSON设置内容 + // 此方法不应该被调用，如果被调用则抛出非法访问错误 + @Override + public void setContentByLocalJSON(JSONObject js) { + throw new IllegalAccessError("MetaData:setContentByLocalJSON should not be called"); + } + + // 重写方法，从内容中获取本地JSON + // 此方法不应该被调用，如果被调用则抛出非法访问错误 + @Override + public JSONObject getLocalJSONFromContent() { + throw new IllegalAccessError("MetaData:getLocalJSONFromContent should not be called"); + } + + // 重写方法，获取同步操作类型 + // 此方法不应该被调用，如果被调用则抛出非法访问错误 + @Override + public int getSyncAction(Cursor c) { + throw new IllegalAccessError("MetaData:getSyncAction should not be called"); + } + + // 类定义结束 +} + + +（2） 类名：gtask>data>Noda + 代码注释： + +/* + * 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; + +import android.database.Cursor; +import org.json.JSONObject; + +// 定义一个抽象类Node，用于表示任务列表中的节点 +public abstract class Node { + // 定义同步操作常量 + public static final int SYNC_ACTION_NONE = 0; // 无需同步操作 + public static final int SYNC_ACTION_ADD_REMOTE = 1; // 添加远程操作 + public static final int SYNC_ACTION_ADD_LOCAL = 2; // 添加本地操作 + public static final int SYNC_ACTION_DEL_REMOTE = 3; // 删除远程操作 + public static final int SYNC_ACTION_DEL_LOCAL = 4; // 删除本地操作 + public static final int SYNC_ACTION_UPDATE_REMOTE = 5; // 更新远程操作 + public static final int SYNC_ACTION_UPDATE_LOCAL = 6; // 更新本地操作 + public static final int SYNC_ACTION_UPDATE_CONFLICT = 7; // 更新冲突操作 + public static final int SYNC_ACTION_ERROR = 8; // 同步错误操作 + + // 节点属性 + private String mGid; // 节点的全局标识符 + private String mName; // 节点的名称 + private long mLastModified; // 节点最后修改时间 + private boolean mDeleted; // 节点是否被删除 + + // Node类的构造函数 + public Node() { + mGid = null; + mName = ""; + mLastModified = 0; + mDeleted = false; + } + + // 抽象方法，用于获取创建操作的JSON对象 + public abstract JSONObject getCreateAction(int actionId); + + // 抽象方法，用于获取更新操作的JSON对象 + public abstract JSONObject getUpdateAction(int actionId); + + // 抽象方法，用于根据远程JSON设置内容 + public abstract void setContentByRemoteJSON(JSONObject js); + + // 抽象方法，用于根据本地JSON设置内容 + public abstract void setContentByLocalJSON(JSONObject js); + + // 抽象方法，用于从内容中获取本地JSON + public abstract JSONObject getLocalJSONFromContent(); + + // 抽象方法，用于获取同步操作类型 + public abstract int getSyncAction(Cursor c); + + // 设置节点的全局标识符 + public void setGid(String gid) { + this.mGid = gid; + } + + // 设置节点的名称 + public void setName(String name) { + this.mName = name; + } + + // 设置节点最后修改时间 + public void setLastModified(long lastModified) { + this.mLastModified = lastModified; + } + + // 设置节点是否被删除 + public void setDeleted(boolean deleted) { + this.mDeleted = deleted; + } + + // 获取节点的全局标识符 + public String getGid() { + return this.mGid; + } + + // 获取节点的名称 + public String getName() { + return this.mName; + } + + // 获取节点最后修改时间 + public long getLastModified() { + return this.mLastModified; + } + + // 获取节点是否被删除 + public boolean getDeleted() { + return this.mDeleted; + } + +} + +（3） 类名：gtask>data>sqlData + 代码注释： +/* + * 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. + */ + +// 包名 +package net.micode.notes.gtask.data; + +// 导入必要的类 +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; + +// SqlData类，用于处理数据操作 +public class SqlData { + // 日志标签 + private static final String TAG = SqlData.class.getSimpleName(); + + // 无效ID常量 + private static final int INVALID_ID = -99999; + + // 数据列数组 + public static final String[] PROJECTION_DATA = new String[] { + DataColumns.ID, DataColumns.MIME_TYPE, DataColumns.CONTENT, DataColumns.DATA1, + DataColumns.DATA3 + }; + + // 数据列索引 + 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; + + // 成员变量 + private ContentResolver mContentResolver; + private boolean mIsCreate; + private long mDataId; + private String mDataMimeType; + private String mDataContent; + private long mDataContentData1; + private String mDataContentData3; + private ContentValues mDiffDataValues; + + // 构造函数，用于创建新的SqlData实例 + public SqlData(Context context) { + mContentResolver = context.getContentResolver(); + mIsCreate = true; + mDataId = INVALID_ID; + mDataMimeType = DataConstants.NOTE; + mDataContent = ""; + mDataContentData1 = 0; + mDataContentData3 = ""; + mDiffDataValues = new ContentValues(); + } + + // 构造函数，用于从Cursor加载现有数据 + public SqlData(Context context, Cursor c) { + mContentResolver = context.getContentResolver(); + mIsCreate = false; + loadFromCursor(c); + mDiffDataValues = new ContentValues(); + } + + // 从Cursor加载数据到成员变量 + 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); + } +} +public void setContent(JSONObject js) throws JSONException { + // 从JSONObject中获取dataId，如果不存在则设置为INVALID_ID + long dataId = js.has(DataColumns.ID) ? js.getLong(DataColumns.ID) : INVALID_ID; + // 如果是创建新记录或者dataId有变化，则将新的dataId放入差异值集合中 + if (mIsCreate || mDataId != dataId) { + mDiffDataValues.put(DataColumns.ID, dataId); + } + // 更新mDataId为新的dataId + mDataId = dataId; + + // 从JSONObject中获取dataMimeType，如果不存在则设置为默认值 + String dataMimeType = js.has(DataColumns.MIME_TYPE) ? js.getString(DataColumns.MIME_TYPE) + : DataConstants.NOTE; + // 如果是创建新记录或者dataMimeType有变化，则将新的dataMimeType放入差异值集合中 + if (mIsCreate || !mDataMimeType.equals(dataMimeType)) { + mDiffDataValues.put(DataColumns.MIME_TYPE, dataMimeType); + } + // 更新mDataMimeType为新的dataMimeType + mDataMimeType = dataMimeType; + + // 从JSONObject中获取dataContent，如果不存在则设置为空字符串 + String dataContent = js.has(DataColumns.CONTENT) ? js.getString(DataColumns.CONTENT) : ""; + // 如果是创建新记录或者dataContent有变化，则将新的dataContent放入差异值集合中 + if (mIsCreate || !mDataContent.equals(dataContent)) { + mDiffDataValues.put(DataColumns.CONTENT, dataContent); + } + // 更新mDataContent为新的dataContent + mDataContent = dataContent; + + // 从JSONObject中获取dataContentData1，如果不存在则设置为0 + long dataContentData1 = js.has(DataColumns.DATA1) ? js.getLong(DataColumns.DATA1) : 0; + // 如果是创建新记录或者dataContentData1有变化，则将新的dataContentData1放入差异值集合中 + if (mIsCreate || mDataContentData1 != dataContentData1) { + mDiffDataValues.put(DataColumns.DATA1, dataContentData1); + } + // 更新mDataContentData1为新的dataContentData1 + mDataContentData1 = dataContentData1; + + // 从JSONObject中获取dataContentData3，如果不存在则设置为空字符串 + String dataContentData3 = js.has(DataColumns.DATA3) ? js.getString(DataColumns.DATA3) : ""; + // 如果是创建新记录或者dataContentData3有变化，则将新的dataContentData3放入差异值集合中 + if (mIsCreate || !mDataContentData3.equals(dataContentData3)) { + mDiffDataValues.put(DataColumns.DATA3, dataContentData3); + } + // 更新mDataContentData3为新的dataContentData3 + mDataContentData3 = dataContentData3; +} + +public JSONObject getContent() throws JSONException { + // 如果正在创建新记录，则记录错误并返回null + if (mIsCreate) { + Log.e(TAG, "it seems that we haven't created this in database yet"); + return null; + } + // 创建一个新的JSONObject并填充当前对象的属性 + 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; +} + +public void commit(long noteId, boolean validateVersion, long version) { + // 如果是创建新记录 + if (mIsCreate) { + // 如果dataId无效且差异值集合中包含dataId，则移除它 + if (mDataId == INVALID_ID && mDiffDataValues.containsKey(DataColumns.ID)) { + mDiffDataValues.remove(DataColumns.ID); + } + // 将noteId放入差异值集合中 + mDiffDataValues.put(DataColumns.NOTE_ID, noteId); + // 插入新记录并获取URI + Uri uri = mContentResolver.insert(Notes.CONTENT_DATA_URI, mDiffDataValues); + // 从URI中提取noteId + try { + mDataId = Long.valueOf(uri.getPathSegments().get(1)); + } catch (NumberFormatException e) { + // 记录错误并抛出异常 + Log.e(TAG, "Get note id error :" + e.toString()); + throw new ActionFailureException("create note failed"); + } + } else { + // 如果差异值集合不为空 + if (mDiffDataValues.size() > 0) { + int result = 0; + // 如果不需要验证版本，则更新记录 + if (!validateVersion) { + result = mContentResolver.update(ContentUris.withAppendedId( + Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues, null, null); + } else { + // 如果需要验证版本，则执行带条件的更新 + 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) + }); + } + // 如果更新结果为0，则记录警告信息 + if (result == 0) { + Log.w(TAG, "there is no update. maybe user updates note when syncing"); + } + } + } + + // 清空差异值集合 + mDiffDataValues.clear(); + // 设置创建标志为false + mIsCreate = false; +} + +public long getId() { + // 返回当前对象的dataId + return mDataId; +} +（4） 类名：gtask>data>SqlNote + 代码注释： + +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; + +public class SqlNote { + private static final String TAG = SqlNote.class.getSimpleName(); // 日志标签，用于输出日志信息 + private static final int INVALID_ID = -99999; // 无效的ID常量，用于标识无效的笔记ID + + // 笔记投影数组，定义了从数据库中获取笔记信息时需要的列 + 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 + }; + + // 各列的索引常量 + 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; // 上下文对象 + private ContentResolver mContentResolver; // 内容解析器，用于与数据库交互 + private boolean mlsCreate; // 标识是否为新创建的笔记 + private long mld; // 笔记ID + private long mAlertDate; // 提醒日期 + private int mBgColorld; // 背景颜色ID + private long mCreatedDate; // 创建日期 + private int mHasAttachment; // 是否有附件 + private long mModifiedDate; // 修改日期 + private long mParentld; // 父笔记ID + private String msSnippet; // 笔记摘要 + private int mType; // 笔记类型 + private int mWidgetld; // 小部件ID + private int mWidgetType; // 小部件类型 + private long moOriginParent; // 原始父笔记ID + private long mVversion; // 版本号 + private ContentValues mDiffNoteValues; // 存储笔记差异的ContentValues对象 + private ArrayList mDataList; // 存储笔记数据的列表 + + // 构造函数，用于创建一个新的笔记 + public SqlNote(Context context) { + mContext = context; + mContentResolver = context.getContentResolver(); + mlsCreate = true; + mld = INVALID_ID; + mAlertDate = 0; + mBgColorld = ResourceParser.getDefaultBgld(context); + mCreatedDate = System.currentTimeMillis(); + mHasAttachment = 0; + mModifiedDate = System.currentTimeMillis(); + mParentld = 0; + msSnippet = ""; + mType = Notes.TYPE_NOTE; + mWidgetld = AppWidgetManager.INVALID_APPWIDGET_ID; + mWidgetType = Notes.TYPE_WIDGET_INVALIDE; + moOriginParent = 0; + mVversion = 0; + mDiffNoteValues = new ContentValues(); + mDataList = new ArrayList<>(); + } + + // 构造函数，用于从Cursor中加载笔记 + public SqlNote(Context context, Cursor c) { + mContext = context; + mContentResolver = context.getContentResolver(); + mlsCreate = false; + loadFromCursor(c); + mDataList = new ArrayList<>(); + if (mType == Notes.TYPE_NOTE) { + loadDataContent(); + } + mDiffNoteValues = new ContentValues(); + } + + // 构造函数，用于从ID加载笔记 + public SqlNote(Context context, long id) { + mContext = context; + mContentResolver = context.getContentResolver(); + mlsCreate = false; + loadFromCursor(id); + mDataList = new ArrayList<>(); + if (mType == Notes.TYPE_NOTE) { + loadDataContent(); + } + mDiffNoteValues = new ContentValues(); + } + + // 从Cursor中加载数据 + private void loadFromCursor(long id) { + Cursor c = null; + try { + c = mContentResolver.query(Notes.CONTENT_NOTE_URI, PROJECTION_NOTE, "_id=?", new String[]{String.valueOf(id)}, null); + if (c != null && c.moveToFirst()) { + loadFromCursor(c); + } else { + Log.w(TAG, "loadFromCursor: cursor is null"); + } + } finally { + if (c != null) { + c.close(); + } + } + } + + // 从Cursor中加载数据 + private void loadFromCursor(Cursor c) { + mld = c.getLong(ID_COLUMN); + mAlertDate = c.getLong(ALERTED_DATE_COLUMN); + mBgColorld = c.getInt(BG_COLOR_ID_COLUMN); + mCreatedDate = c.getLong(CREATED_DATE_COLUMN); + mHasAttachment = c.getInt(HAS_ATTACHMENT_COLUMN); + mModifiedDate = c.getLong(MODIFIED_DATE_COLUMN); + mParentld = c.getLong(PARENT_ID_COLUMN); + msSnippet = c.getString(SNIPPET_COLUMN); + mType = c.getInt(TYPE_COLUMN); + mWidgetld = c.getInt(WIDGET_ID_COLUMN); + mWidgetType = c.getInt(WIDGET_TYPE_COLUMN); + mVversion = c.getLong(VERSION_COLUMN); + } + + // 加载数据内容 + 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(mld)}, null); + if (c != null) { + if (c.getCount() == 0) { + Log.w(TAG, "it seems that the note has no data"); + return; + } + while (c.moveToNext()) { + SqlData data = new SqlData(mContext, c); + mDataList.add(data); + } + } else { + Log.w(TAG, "loadDataContent: cursor is null"); + } + } finally { + if (c != null) { + c.close(); + } + } + } + + // 设置笔记内容 + public boolean setContent(JSONObject js) { + try { + JSONObject +note =js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE); + if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_SYSTEM) { + Log.w(TAG, "cannot set system folder"); + return false; + } else if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_FOLDER) { + // For folder, we can only update the snippet and type + String snippet = note.has(NoteColumns.SNIPPET) ? note.getString(NoteColumns.SNIPPET) : ""; + if (mlsCreate || !msSnippet.equals(snippet)) { + mDiffNoteValues.put(NoteColumns.SNIPPET, snippet); + } + mSnippet = snippet; + int type = note.getInt(NoteColumns.TYPE) == Notes.TYPE_NOTE ? Notes.TYPE_NOTE : type; + if (mlsCreate || 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 (mlsCreate || mld != id) { + mDiffNoteValues.put(NoteColumns.ID, id); + } + mld = id; + long alertDate = note.has(NoteColumns.ALERTED_DATE) ? note.getLong(NoteColumns.ALERTED_DATE) : 0; + if (mlsCreate || mAlertDate != alertDate) { + mDiffNoteValues.put(NoteColumns.ALERTED_DATE, alertDate); + } + mAlertDate = alertDate; + int bgColorld = note.has(NoteColumns.BG_COLOR_ID) ? note.getInt(NoteColumns.BG_COLOR_ID) : ResourceParser.getDefaultBgld(mContext); + if (mlsCreate || mBgColorld != bgColorld) { + mDiffNoteValues.put(NoteColumns.BG_COLOR_ID, bgColorld); + } + mBgcolorld = bgColorld; + long createDate = note.has(NoteColumns.CREATED_DATE) ? note.getLong(NoteColumns.CREATED_DATE + createDate = note.has(NoteColumns.CREATED_DATE) ? note.getLong(NoteColumns.CREATED_DATE) : System.currentTimeMillis(); + if (mlsCreate || mCreatedDate != createDate) { + mDiffNoteValues.put(NoteColumns.CREATED_DATE, createDate); + } + mCreatedDate = createDate; + int hasAttachment = note.has(NoteColumns.HAS_ATTACHMENT) ? note.getInt(NoteColumns.HAS_ATTACHMENT) : 0; + if (mlsCreate || 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 (mlsCreate || mModifiedDate != modifiedDate) { + mDiffNoteValues.put(NoteColumns.MODIFIED_DATE, modifiedDate); + } + mModifiedDate = modifiedDate; + long parentld = note.has(NoteColumns.PARENT_ID) ? note.getLong(NoteColumns.PARENT_ID) : 0; + if (mlsCreate || mParentld != parentld) { + mDiffNoteValues.put(NoteColumns.PARENT_ID, parentld); + } + mParentld = parentld; + String snippet = note.has(NoteColumns.SNIPPET) ? note.getString(NoteColumns.SNIPPET) : ""; + if (mlsCreate || !msSnippet.equals(snippet)) { + mDiffNoteValues.put(NoteColumns.SNIPPET, snippet); + } + mSnippet = snippet; + int type = note.getInt(NoteColumns.TYPE) == Notes.TYPE_NOTE ? Notes.TYPE_NOTE : type; + if (mlsCreate || mType != type) { + mDiffNoteValues.put(NoteColumns.TYPE, type); + } + mType = type; + int widgetld = note.has(NoteColumns.WIDGET_ID) ? note.getInt(NoteColumns.WIDGET_ID) : AppWidgetManager.INVALID_APPWIDGET_ID; + if (mlsCreate || mWidgetld != widgetld) { + mDiffNoteValues.put(NoteColumns.WIDGET_ID, widgetld); + } + mWidgetld = widgetld; + int widgetType = note.has(NoteColumns.WIDGET_TYPE) ? note.getInt(NoteColumns.WIDGET_TYPE) : Notes.TYPE_WIDGET_INVALIDE; + if (mlsCreate || 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 (mlsCreate || moOriginParent != originParent) { + mDiffNoteValues.put(NoteColumns.ORIGIN_PARENT_ID, originParent); + } + moOriginParent = originParent; + for (int i = 0; i < dataArray.length(); i++) { + JSONObject data = dataArray.getJSONObject(i); + SqlData sqlData = null; + if (data.has(DataColumns.ID)) { + long datald = data.getLong(DataColumns.ID); + for (SqlData temp : mDataList) { + if (datald == temp.getld()) { + sqlData = temp; + break; + } + } + } + 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; + } + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + return false; + } + return true; + } + + // 获取笔记内容 + public JSONObject getContent() { + try { + JSONObject js = new JSONObject(); + if (mlsCreate) { + 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, mld); + note.put(NoteColumns.ALERTED_DATE, mAlertDate); + note.put(NoteColumns.BG_COLOR_ID, mBgColorld); + note.put(NoteColumns.CREATED_DATE, mCreatedDate); + note.put(NoteColumns.HAS_ATTACHMENT, mHasAttachment); + note.put(NoteColumns.MODIFIED_DATE, mModifiedDate); + note.put(NoteColumns.PARENT_ID, mParentld); + note.put(NoteColumns.SNIPPET, mSnippet); + note.put(NoteColumns.TYPE, mType); + note.put(NoteColumns.WIDGET_ID, mWidgetld); + note.put(NoteColumns.WIDGET_TYPE, mWidgetType); + note.put(NoteColumns.ORIGIN_PARENT_ID, moOriginParent); + 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, mld); + 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; + } + } + + // 设置父笔记ID + public void setParentld(long id) { + mParentld = id; + mDiffNoteValues.put(NoteColumns.PARENT_ID, id); + } + + // 设置Gtask ID + public void setGtaskld(String gid) { + mDiffNoteValues.put(NoteColumns.GTASK_ID, gid); + } + + // 设置同步ID + public void setSyncld(long syncld) { + mDiffNoteValues.put(NoteColumns.SYNC_ID, syncld); + } + + // 重置本地修改标记 + public void resetLocalModified() { + mDiffNoteValues.put(NoteColumns.LOCAL_MODIFIED, 0); + } + + // 获取笔记ID + public long getld() { + return mld; + } + + // 获取父笔记ID + public long getParentld() { + return mParentld; + } + + // 获取笔记摘要 + public String getSnippet() { + return mSnippet; + } + + // 判断是否为笔记类型 + public boolean isNoteType() { + return mType == Notes.TYPE_NOTE; + } + + // 提交笔记到数据库 + public void commit(boolean validateVersion) { + if (mlsCreate) { + if (mld == INVALID_ID && mDiffNoteValues.containsKey(NoteColumns.ID)) { + mDiffNoteValues.remove(NoteColumns.ID); + } + try { + Uri uri = mContentResolver.insert(Notes.CONTENT_NOTE_URI, mDiffNoteValues); + try { + mld = Long.valueOf(uri.getPathSegments().get(1)); + } catch (NumberFormatException e) { + Log.e(TAG, "Get note id error: " + e.toString()); + throw new ActionFailureException("create note failed "); + } + } catch (IllegalStateException e) { + Log.e(TAG, "Create thread id failed "); + throw new ActionFailureException("create note failed "); + } + if (mld == 0) { + throw new IllegalStateException("Create thread id failed "); + } + if (mType == Notes.TYPE_NOTE) { + for (SqlData sqlData : mDataList) { + sqlData.commit(mld, false, -1); + } + } + } else { + if (mld <= 0 && mld != Notes.ID_ROOT_FOLDER && mld != 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) { + mVversion++; + int result = 0; + if (validateVersion) { + result = mContentResolver.update(Notes.CONTENT_NOTE_URI, mDiffNoteValues, "(" + NoteColumns.ID + "=? AND " + NoteColumns.VERSION + "data>Task + 代码注释： + package net.micode.notes.gtask.data; + +import android.database.Cursor; +import android.text.TextUtils; +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.gtask.exception.ActionFailureException; +import net.micode.notes.tool.GTaskStringUtils; + +import org.json.JSONArray; +import org.json.JSONException; +import org.json.JSONObject; + +// Task 类继承自 NodeT，表示一个任务节点 +public class Task extends NodeT { + private static final String TAG = Task.class.getSimpleName(); // 类名常量，用于日志输出 + + // 成员变量 + private boolean mCompleted; // 任务是否完成 + private String mNotes; // 任务备注 + private JSONObject mMetaInfo; // 任务的元信息 + private Task mpPriorSibling; // 前一个同级任务节点 + private TaskList mParent; // 父任务列表 + + // 构造函数 + public Task() { + super(); // 调用父类构造函数 + mCompleted = false; // 默认未完成 + mNotes = null; // 默认没有备注 + mpPriorSibling = null; // 默认没有前一个同级任务 + mParent = null; // 默认没有父任务列表 + mMetaInfo = null; // 默认没有元信息 + } + + // 获取创建任务的 JSON 对象 + public JSJONObject getCreateAction(int actionld) { + JSONObject js = new JSONObject(); // 创建 JSON 对象 + try { + // 设置 action_type + js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, GTaskStringUtils.GTASK_JSON_ACTION_TYPE_CREATE); + // 设置 action_id + js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionld); + // 设置 index + js.put(GTaskStringUtils.GTASK_JSON_INDEX, mpParent.getChildTasklndex(this)); + // 设置 entity_delta + JSONObject entity = new JSONObject(); + entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName()); + entity.put(GTaskStringUtils.GTASK_JSON_CREATOR_ID, ”null ); + entity.put(GTaskStringUtils.GTASK_JSON_ENTITY_TYPE, GTaskStringUtils.GTASK_JSON_TYPE_TASK); + if (getNotes() != nul) { + entity.put(GTaskStringUtils.GTASK_JSON_NOTES, getNotes()); + } + js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity); + // 设置 parent_id + js.put(GTaskStringUtils.GTASK_JSON_PARENT_ID, mParent.getGid()); + // 设置 dest_parent_type + js.put(GTaskStringUtils.GTASK_JSON_DEST_PARENT_TYPE, GTaskStringUtils.GTASK_JSON_TYPE_GROUP); + // 设置 list_id + js.put(GTaskStringUtils.GTASK_JSON_LIST_ID, mParent.getGid()); + // 设置 prior_sibling_id + if (mPriorSibling != nul) { + js.put(GTaskStringUtils.GTASK_JSON_PRIOR_SIBLING_ID, mpPriorSibling.getGid()); + } + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("fail to generate task-create jsonobject "); + } + return js; + } + + // 获取更新任务的 JSON 对象 + public JSJONObject getUpdateAction(int actionld) { + JSONObject js = new JSONObject(); // 创建 JSON 对象 + try { + // 设置 action_type + js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, GTaskStringUtils.GTASK_JSON_ACTION_TYPE_UPDATE); + // 设置 action_id + js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionld); + // 设置 id + js.put(GTaskStringUtils.GTASK_JSON_ID, getGid()); + // 设置 entity_delta + JSONObject entity = new JSONObject(); + entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName()); + if (getNotes() := nul) { + entity.put(GTaskStringUtils.GTASK_JSON_NOTES, getNotes()); + } + entity.put(GTaskStringUtils.GTASK_JSON_DELETED, getDeleted()); + js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity); + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTracel); + throw new ActionFailureException("fail to generate task-update jsonobject "); + } + return js; + } + + // 根据远程 JSON 设置任务内容 + public void setContentByRemoteJSON(JSONObject js) { + if (js != null) { + try { + // 解析 id + if (js.has(GTaskStringUtils.GTASK_JSON_ID)) { + setGid(js.getString(GTaskStringUtils.GTASK_JSON_ID)); + } + // 解析 last_modified + if (js.has(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)) { + setLastModified(js.getLong(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)); + } + // 解析 name + if (js.has(GTaskStringuUtils.GTASK_JSON_NAME)) { + setNamel(js.getString(GTaskStringuUtils.GTASK_JSON_NAME)); + } + // 解析 notes + if (js.has(GTaskStringUtils.GTASK_JSON_NOTES)) { + setNotes(js.getString(GTaskStringUtils.GTASK_JSON_NOTES)); + } + // 解析 deleted + if (js.has(GTaskStringUtils.GTASK_JSON_DELETED)) { + setDeleted(js.getBoolean(GTaskStringUtils.GTASK_JSON_DELETED)); + } + // 解析 completed + if (js.has(GTaskStringUtils.GTASK_JSON_COMPLETED)) { + setCompleted(js.getBoolean(GTaskStringUtils.GTASK_JSON_COMPLETED)); + } + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("fail to get task content from jsonobject "); + } + } + } + + // 根据本地 JSON 设置任务内容 + public void setContentByLocalJSON(JSONObject js) { + if (js == null || js.has(GTaskStringUtils.META_HEAD_NOTE) || js.has(GTaskStringuUtils.META_HEAD_DATA)) { + Log.w(TAG, "setContentByLocalJSON: nothing is available "); + } + try { + JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE); + JSONArray dataArray = js.getJSONArray(GTaskStringUtils.META_HEAD_DATA); + if (note.getInt(NoteColumns.TYPE) != Notes.TYPE_NOTE) { + Log.e(TAG, "invalid type"); + return; + } + for (int i = 0; i < dataArray.length(); i++) { + JSONObject data = dataArray.getJSONObject(i); + if (TextUtils.equals(data.getString(DataColumns.MIME_TYPE), DataConstants.NOTE)) { + setName(data.getString(DataColumns.CONTENT)); + break; + } + } + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + } + } + + // 从内容获取本地 JSON 对象 + public JSJONObject getLocalJSONFromContent() { + String name = getName(); + try { + if (mMetalnfo == nulbD { + // 新任务从网页创建 + if (name == nul) { + Log.w(TAG, "the note seems to be an empty one "); + return null; + } + JSONObject js = new JSONObject(); + JSONObject note = new JSONObject(); + JSONArray dataArray = new JSONArray(); + JSONObject data = new JSONObject(); + data.put(DataColumns.CONTENT, name); + dataArray.put(data); + js.put(GTaskStringUtils.META_HEAD_DATA, dataArray); + note.put(NoteColumns.TYPE, Notes.TYPE_NOTE); + js.put(GTaskStringUtils.META_HEAD_NOTE, note); + return js; + } else { + // 同步的任务 + JSONObject note = mMetalnfo.getJSONObject(GTaskStringUtils.META_HEAD_NOTE); + JSONArray dataArray = mMetalnfo.getJSONArray(GTaskStringUtils.META_HEAD_DATA); + for (int i = 0; i < dataArray.length(); i++) { + JSONObject data = dataArray.getJSONObject(i); + if (TextUtils.equals(data.getString(DataColumns.MIME_TYPE), DataConstants.NOTE)) { + data.put(DataColumns.CONTENT, getName()); + break; + } + } + note.put(NoteColumns.TYPE, Notes.TYPE_NOTE); + return mMetalnfo; + } + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + return null; + } + } + + // 设置元信息 + public void setMetalnfo(MetaData metaData) { + if (metaData != null && metaData.getNotes() != nu山) { + try { + mMetalnfo = new JSONObject(metaData.getNotes()); + } catch (JSONException ef) { + Log.w(TAG, e.toString()); + mMetalnfo = null; + } + } + } + + // 获取同步动作 + public int getSyncAction(Cursor cj) { + try { + JSONObject notelnfo = null; + if (mMetalnfo != null && mMetalnfo.has(GTaskStringUtils.META_HEAD_NOTE)) { + notelnfo = mMetalnfo.getJSONObject(GTaskStringUtils.META_HEAD_NOTE); + } + if (notelnfo == nul) { + Log.w(TAG， "it seems that note meta has been deleted "); + return SYNC_ACTION_UPDATE_REMOTE; + } + if (notelnfo.has(NoteColumns.ID)) { + Log.w(TAG, "remote note id seems to be deleted"); + return SYNC_ACTION_UPDATE_LOCAL; + } + // 验证 note id + if (c.getLong(SqlNote.ID__COLUMN) != notelnfo.getLong(NoteColumns.ID)) { + Log.w(TAG, "note id doesn't match "); + return SYNC_ACTION_UPDATE_LOCAL; + } + if (c.getInt(SqlNote.LOCAL_MODIFIED_COLUMN) + if (c.getInt(SqlNote.LOCAL_MODIFIED_COLUMN) == 0) { + // there is no local update + if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) { + // no update both side + return SYNC_ACTION_NONE; + } else { + // apply remote to local + return SYNC_ACTION_UPDATE_LOCAL; + } + } else { + // validate gtask id + if (!c.getString(SqlNote.GTASK_ID_COLUMN).equals(getGid())) { + Log.e(TAG, "gtask id doesn't match "); + return SYNC_ACTION_ERROR; + } + if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) { + // local modification only + return SYNC_ACTION_UPDATE_REMOTE; + } else { + return SYNC_ACTION_UPDATE_CONFLICT; + } + } + } catch (Exception e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + return SYNC_ACTION_ERROR; + } + } + + // 判断任务是否值得保存 + public boolean isWorthSaving() { + return mMetalnfo != null || (getName() != null && getName().trim().length() > 0) + || (getNotes() != null && getNotes().trim().length() > 0); + } + + // 设置任务完成状态 + public void setCompleted(boolean completed) { + this.mCompleted = completed; + } + + // 设置任务备注 + public void setNotes(String notes) { + this.mNotes = notes; + } + + // 设置前一个同级任务节点 + public void setPriorSibling(Task priorSibling) { + this.mPriorSibling = priorSibling; + } + + // 设置父任务列表 + public void setParent(TaskList parent) { + this.mParent = parent; + } + + // 获取任务完成状态 + public boolean getCompleted() { + return this.mCompleted; + } + + // 获取任务备注 + public String getNotes() { + return this.mNotes; + } + + // 获取前一个同级任务节点 + public Task getPriorSibling() { + return this.mPriorSibling; + } + + // 获取父任务列表 + public TaskList getParent() { + return this.mParent; + } +} +（6） 类名：gtask>data>TaskList +代码注释：package net.micode.notes.gtask.data; + +import android.database.Cursor; +import android.util.Log; + +import net.micode.notes.data.Notes; +import net.micode.notes.data.Notes.NoteColumns; +import net.micode.notes.gtask.exception.ActionFailureException; + +import net.micode.notes.tool.GTaskStringUtils; + +import org.json.JSONException; +import org.json.JSONObject; + +import java.util.ArrayList; + +public class TaskList extends Node { + private static final String TAG = TaskList.class.getSimpleName(); + private int mIndex; + private ArrayList mChildren; + + public TaskList() { + super(); + mChildren = new ArrayList(); + mIndex = 1; + } + + public JSONObject getCreateAction(int actionId) { + JSONObject js = new JSONObject(); + try { + js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, GTaskStringUtils.GTASK_JSON_ACTION_TYPE_CREATE); + js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId); + js.put(GTaskStringUtils.GTASK_JSON_INDEX, mIndex); + + JSONObject entity = new JSONObject(); + entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName()); + entity.put(GTaskStringUtils.GTASK_JSON_CREATOR_ID, "null"); + entity.put(GTaskStringUtils.GTASK_JSON_ENTITY_TYPE, GTaskStringUtils.GTASK_JSON_TYPE_GROUP); + js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity); + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("fail to generate tasklist-create jsonobject"); + } + return js; + } + + public JSONObject getUpdateAction(int actionId) { + JSONObject js = new JSONObject(); + try { + js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, GTaskStringUtils.GTASK_JSON_ACTION_TYPE_UPDATE); + js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId); + js.put(GTaskStringUtils.GTASK_JSON_ID, getGid()); + + JSONObject entity = new JSONObject(); + entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName()); + entity.put(GTaskStringUtils.GTASK_JSON_DELETED, getDeleted()); + js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity); + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("fail to generate tasklist-update jsonobject"); + } + return js; + } + + public void setContentByRemoteJSON(JSONObject js) { + if (js != null) { + try { + if (js.has(GTaskStringUtils.GTASK_JSON_ID)) { + setGid(js.getString(GTaskStringUtils.GTASK_JSON_ID)); + } + if (js.has(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)) { + setLastModified(js.getLong(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)); + } + if (js.has(GTaskStringUtils.GTASK_JSON_NAME)) { + setName(js.getString(GTaskStringUtils.GTASK_JSON_NAME)); + } + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + throw new ActionFailureException("fail to get tasklist content from jsonobject"); + } + } + } + + public void setContentByLocalJSON(JSONObject js) { + if (js == null || !js.has(GTaskStringUtils.META_HEAD_NOTE)) { + Log.w(TAG, "setContentByLocalJSON: nothing is available"); + } + try { + JSONObject folder = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE); + if (folder.getInt(NoteColumns.TYPE) == Notes.TYPE_FOLDER) { + String name = folder.getString(NoteColumns.SNIPPET); + setName(GTaskStringUtils.MIUI_FOLDER_PREFIX + name); + } else if (folder.getInt(NoteColumns.TYPE) == Notes.TYPE_SYSTEM) { + if (folder.getLong(NoteColumns.ID) == Notes.ID_ROOT_FOLDER) { + setName(GTaskStringUtils.MIUI_FOLDER_PREFIX + GTaskStringUtils.FOLDER_DEFAULT); + } else if (folder.getLong(NoteColumns.ID) == Notes.ID_CALL_RECORD_FOLDER) { + setName(GTaskStringUtils.MIUI_FOLDER_PREFIX + GTaskStringUtils.FOLDER_CALL_NOTE); + } else { + Log.e(TAG, "invalid system folder"); + } + } else { + Log.e(TAG, "error type"); + } + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + } + } + + public JSONObject getLocalJSONFromContent() { + try { + JSONObject js = new JSONObject(); + JSONObject folder = new JSONObject(); + String folderName = getName(); + if (getName().startsWith(GTaskStringUtils.MIUI_FOLDER_PREFIX)) { + folderName = folderName.substring(GTaskStringUtils.MIUI_FOLDER_PREFIX.length(), folderName.length()); + } + folder.put(NoteColumns.SNIPPET, folderName); + if (folderName.equals(GTaskStringUtils.FOLDER_DEFAULT) || folderName.equals(GTaskStringUtils.FOLDER_CALL_NOTE)) { + folder.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); + } else { + folder.put(NoteColumns.TYPE, Notes.TYPE_FOLDER); + } + js.put(GTaskStringUtils.META_HEAD_NOTE, folder); + return js; + } catch (JSONException e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + return null; + } + } + + public int getSyncAction(Cursor c) { + try { + if (c.getInt(SqlNote.LOCAL_MODIFIED_COLUMN) == 0) { + // there is no local update + if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) { + // no update both side + return SYNC_ACTION_NONE; + } else { + // apply remote to local + return SYNC_ACTION_UPDATE_LOCAL; + } + } else { + // validate gtask id + if (!c.getString(SqlNote.GTASK_ID_COLUMN).equals(getGid())) { + Log.e(TAG, "gtask id doesn't match "); + return SYNC_ACTION_ERROR; + } + if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) { + // local modification only + return SYNC_ACTION_UPDATE_REMOTE; + } else { + return SYNC_ACTION_UPDATE_CONFLICT; + } + } + } catch (Exception e) { + Log.e(TAG, e.toString()); + e.printStackTrace(); + return SYNC_ACTION_ERROR; + } + } + + // 判断任务是否值得保存 + public boolean isWorthSaving() { + return mMetalnfo != null || (getName() != null && getName().trim().length() > 0) + || (getNotes() != null && getNotes().trim().length() > 0); + } + + // 设置任务完成状态 + public void setCompleted(boolean completed) { + this.mCompleted = completed; + } + + // 设置任务备注 + public void setNotes(String notes) { + this.mNotes = notes; + } + + // 设置前一个同级任务节点 + public void setPriorSibling(Task priorSibling) { + this.mPriorSibling = priorSibling; + } + + // 设置父任务列表 + public void setParent(TaskList parent) { + this.mParent = parent; + } + + // 获取任务完成状态 + public boolean getCompleted() { + return this.mCompleted; + } + + // 获取任务备注 + public String getNotes() { + return this.mNotes; + } + + // 获取前一个同级任务节点 + public Task getPriorSibling() { + return this.mPriorSibling; + } + + // 获取父任务列表 + public TaskList getParent() { + return this.mParent; + } +} + +（7） 类名：gtask>exception>ActionFailureException +代码注释： +/* + * 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; // 定义异常类所在的包 + +public class ActionFailureException extends RuntimeException { // 定义异常类，继承自RuntimeException + private static final long serialVersionUID = 4425249765923293627L; // 定义序列化版本ID，用于序列化和反序列化 + + public ActionFailureException() { // 无参构造函数 + super(); // 调用父类的无参构造函数 + } + + public ActionFailureException(String paramString) { // 带有一个字符串参数的构造函数 + super(paramString); // 调用父类的构造函数，传入字符串参数作为异常信息 + } + + public ActionFailureException(String paramString, Throwable paramThrowable) { // 带有字符串和Throwable参数的构造函数 + super(paramString, paramThrowable); // 调用父类的构造函数，传入字符串和Throwable参数作为异常信息和异常原因 + } +} +（8） 类名：gtask>exception>NetworkFailureExcepyion +代码注释： +package net.micode.notes.gtask.exception; // 定义异常类所在的包 + +public class NetworkFailureException extends Exception { // 定义异常类，继承自Exception + private static final long serialVersionUID = 2107610287180234136L; // 定义序列化版本ID，用于序列化和反序列化 + + public NetworkFailureException() { // 无参构造函数 + super(); // 调用父类的无参构造函数 + } + + public NetworkFailureException(String paramString) { // 带有一个字符串参数的构造函数 + super(paramString); // 调用父类的构造函数，传入字符串参数作为异常信息 + } + + public NetworkFailureException(String paramString, Throwable paramThrowable) { // 带有字符串和Throwable参数的构造函数 + super(paramString, paramThrowable); // 调用父类的构造函数，传入字符串和Throwable参数作为异常信息和异常原因 + } +} + +（9） 类名：weight>NoteWidgetProvider +代码注释： +package net.micode.notes.widget; + +import android.app.PendingIntent; +import android.appwidget.AppWidgetManager; +import android.appwidget.AppWidgetProvider; +import android.content.ContentValues; +import android.content.Context; +import android.content.Intent; +import android.database.Cursor; +import android.util.Log; +import android.widget.RemoteViews; + +import net.micode.notes.R; +import net.micode.notes.data.Notes; +import net.micode.notes.data.Notes.NoteColumns; +import net.micode.notes.tool.ResourceParser; +import net.micode.notes.ui.NoteEditActivity; +import net.micode.notes.ui.NotesListActivity; + +// 定义一个名为 NoteWidgetProvider 的抽象类，继承自 AppWidgetProvider +public abstract class NoteWidgetProvider extends AppWidgetProvider { + // 定义查询列数组，包括笔记ID、背景颜色ID和笔记片段 + public static final String[] PROJECTION = new String[] { + NoteColumns.ID, + NoteColumns.BG_COLOR_ID, + NoteColumns.SNIPPET + }; + + // 定义列索引常量 + public static final int COLUMN_ID = 0; + public static final int COLUMN_BG_COLOR_ID = 1; + public static final int COLUMN_SNIPPET = 2; + + // 定义日志标签 + private static final String TAG = "NoteWidgetProvider"; + + // 当小部件被删除时调用 + @Override + public void onDeleted(Context context, int[] appWidgetIds) { + ContentValues values = new ContentValues(); + values.put(NoteColumns.WIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID); + for (int i = 0; i < appWidgetIds.length; i++) { + context.getContentResolver().update(Notes.CONTENT_NOTE_URI, values, + NoteColumns.WIDGET_ID + "=?", new String[] { String.valueOf(appWidgetIds[i]) }); + } + } + + // 获取小部件笔记信息 + private Cursor getNoteWidgetInfo(Context context, int widgetId) { + return context.getContentResolver().query(Notes.CONTENT_NOTE_URI, + PROJECTION, NoteColumns.WIDGET_ID + "=? AND " + NoteColumns.PARENT_ID + "=?", + new String[] { String.valueOf(widgetId), String.valueOf(Notes.ID_TRASH_FOLDER) }, null); + } + + // 更新小部件 + protected void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { + update(context, appWidgetManager, appWidgetIds, false); + } + + // 更新小部件，可以设置隐私模式 + private void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds, boolean privacyMode) { + for (int i = 0; i < appWidgetIds.length; i++) { + if (appWidgetIds[i] != AppWidgetManager.INVALID_APPWIDGET_ID) { + int bgId = ResourceParser.getDefaultBgId(context); + String snippet = ""; + Intent intent = new Intent(context, NoteEditActivity.class); + intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP); + intent.putExtra(Notes.INTENT_EXTRA_WIDGET_ID, appWidgetIds[i]); + intent.putExtra(Notes.INTENT_EXTRA_WIDGET_TYPE, getWidgetType()); + + Cursor c = getNoteWidgetInfo(context, appWidgetIds[i]); + if (c != null && c.moveToFirst()) { + if (c.getCount() > 1) { + Log.e(TAG, "Multiple messages with same widget id: " + appWidgetIds[i]); + c.close(); + return; + } + snippet = c.getString(COLUMN_SNIPPET); + bgId = c.getInt(COLUMN_BG_COLOR_ID); + intent.putExtra(Intent.EXTRA_UID, c.getLong(COLUMN_ID)); + intent.setAction(Intent.ACTION_VIEW); + } else { + snippet = context.getResources().getString(R.string.widget_have_no_content); + intent.setAction(Intent.ACTION_INSERT_OR_EDIT); + } + if (c != null) { + c.close(); + } + + RemoteViews rv = new RemoteViews(context.getPackageName(), getLayoutId()); + rv.setImageViewResource(R.id.widget_bg_image, getBgResourceId(bgId)); + intent.putExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, bgId); + + PendingIntent pendingIntent = null; + if (privacyMode) { + rv.setTextViewText(R.id.widget_text, context.getString(R.string.widget_under_visit_mode)); + pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], new Intent(context, NotesListActivity.class), PendingIntent.FLAG_UPDATE_CURRENT); + } else { + rv.setTextViewText(R.id.widget_text, snippet); + pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], intent, PendingIntent.FLAG_UPDATE_CURRENT); + } + + rv.setOnClickPendingIntent(R.id.widget_text, pendingIntent); + appWidgetManager.updateAppWidget(appWidgetIds[i], rv); + } + } + } + + // 抽象方法：获取背景资源ID + protected abstract int getBgResourceId(int bgId); + // 抽象方法：获取布局ID + protected abstract int getLayoutId(); + // 抽象方法：获取小部件类型 + protected abstract int getWidgetType(); +} +（10） 类名：weight>NoteWidgetProvider +代码注释： +public class NoteWidgetProvider_2x extends NoteWidgetProvider { // 定义一个名为 NoteWidgetProvider_2x 的类，继承自 NoteWidgetProvider + @Override // 重写父类的 onUpdate 方法 + public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { + super.update(context, appWidgetManager, appWidgetIds); // 调用父类的 update 方法 + } + + @Override // 重写父类的 getLayoutId 方法 + protected int getLayoutId() { + return R.layout.widget_2x; // 返回 2x 小部件的布局资源ID + } + + @Override // 重写父类的 getBgResourceId 方法 + protected int getBgResourceId(int bgId) { + return ResourceParser.WidgetBgResources.getWidget2xBgResource(bgId); // 返回 2x 小部件的背景资源ID + } + + @Override // 重写父类的 getWidgetType 方法 + protected int getWidgetType() { + return Notes.TYPE_WIDGET_2X; // 返回 2x 小部件的类型 + } +} +（11） 类名：weight>NoteWidgetProvider +代码注释： +public class NoteWidgetProvider_4x extends NoteWidgetProvider { // 定义一个名为 NoteWidgetProvider_4x 的类，继承自 NoteWidgetProvider + @Override // 重写父类的 onUpdate 方法 + public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { + super.update(context, appWidgetManager, appWidgetIds); // 调用父类的 update 方法 + } + + protected int getLayoutId() { // 重写父类的 getLayoutId 方法 + return R.layout.widget_4x; // 返回 4x 小部件的布局资源ID + } + + @Override // 重写父类的 getBgResourceId 方法 + protected int getBgResourceId(int bgId) { + return ResourceParser.WidgetBgResources.getWidget4xBgResource(bgId); // 返回 4x 小部件的背景资源ID + } + + @Override // 重写父类的 getWidgetType 方法 + protected int getWidgetType() { + return Notes.TYPE_WIDGET_4X; // 返回 4x 小部件的类型 + } +} +（12） 类名：weight>MainActivity +代码注释：public class MainActivity extends AppCompatActivity { // 定义一个名为 MainActivity 的类，继承自 AppCompatActivity + @Override // 重写父类的 onCreate 方法 + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); // 调用父类的 onCreate 方法 + EdgeToEdge.enable(this); // 启用边缘到边缘的功能 + setContentView(R.layout.activity_main); // 设置活动内容视图为 activity_main 布局 + + ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> { // 设置视图的 OnApplyWindowInsetsListener + Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars()); // 获取系统栏的边距 + v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom); // 设置视图的边距 + return insets; // 返回边距对象 + }); + } +} diff --git a/src/230340157于紫璇.txt b/src/230340157于紫璇.txt new file mode 100644 index 0000000..2f362bd --- /dev/null +++ b/src/230340157于紫璇.txt @@ -0,0 +1,4433 @@ +1、AlarmAlertActivity.java + +package net.micode.notes.ui; + +import android.app.Activity; +import android.app.AlertDialog; +import android.content.Context; +import android.content.DialogInterface; +import android.content.DialogInterface.OnClickListener; +import android.content.DialogInterface.OnDismissListener; +import android.content.Intent; +import android.media.AudioManager; +import android.media.MediaPlayer; +import android.media.RingtoneManager; +import android.net.Uri; +import android.os.Bundle; +import android.os.PowerManager; +import android.provider.Settings; +import android.view.Window; +import android.view.WindowManager; + +import net.micode.notes.R; +import net.micode.notes.data.Notes; +import net.micode.notes.tool.DataUtils; + +import java.io.IOException; + +public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener { + private long mNoteId; //文本在数据库存储中的ID号 + private String mSnippet; //闹钟提示时出现的文本片段 + private static final int SNIPPET_PREW_MAX_LEN = 60; + MediaPlayer mPlayer; + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + //Bundle类型的数据与Map类型的数据相似，都是以key-value的形式存储数据的 + //onsaveInstanceState方法是用来保存Activity的状态的 + //能从onCreate的参数savedInsanceState中获得状态数据 + requestWindowFeature(Window.FEATURE_NO_TITLE); + //界面显示——无标题 + + final Window win = getWindow(); + win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED); + + if (!isScreenOn()) { + win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON + //保持窗体点亮 + | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON + //将窗体点亮 + | WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON + //允许窗体点亮时锁屏 + | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR); + }//在手机锁屏后如果到了闹钟提示时间，点亮屏幕 + + Intent intent = getIntent(); + + try { + mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1)); + mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId); + //根据ID从数据库中获取标签的内容； + //getContentResolver（）是实现数据共享，实例存储。 + mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0, + SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info) + : mSnippet; + //判断标签片段是否达到符合长度 + } catch (IllegalArgumentException e) { + e.printStackTrace(); + return; + } + /* + try + { + // 代码区 + } + catch(Exception e) + { + // 异常处理 + } + 代码区如果有错误，就会返回所写异常的处理。*/ + mPlayer = new MediaPlayer(); + if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) { + showActionDialog(); + //弹出对话框 + playAlarmSound(); + //闹钟提示音激发 + } else { + finish(); + //完成闹钟动作 + } + } + + private boolean isScreenOn() { + //判断屏幕是否锁屏，调用系统函数判断，最后返回值是布尔类型 + PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE); + return pm.isScreenOn(); + } + + private void playAlarmSound() { + //闹钟提示音激发 + Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM); + //调用系统的铃声管理URI，得到闹钟提示音 + int silentModeStreams = Settings.System.getInt(getContentResolver(), + Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0); + + if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) { + mPlayer.setAudioStreamType(silentModeStreams); + } else { + mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM); + } + try { + mPlayer.setDataSource(this, url); + //方法：setDataSource(Context context, Uri uri) + //解释：无返回值，设置多媒体数据来源【根据 Uri】 + mPlayer.prepare(); + //准备同步 + mPlayer.setLooping(true); + //设置是否循环播放 + mPlayer.start(); + //开始播放 + } catch (IllegalArgumentException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + //e.printStackTrace()函数功能是抛出异常， 还将显示出更深的调用信息 + //System.out.println(e)，这个方法打印出异常，并且输出在哪里出现的异常 + } catch (SecurityException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } catch (IllegalStateException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } catch (IOException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } + } + + private void showActionDialog() { + AlertDialog.Builder dialog = new AlertDialog.Builder(this); + //AlertDialog的构造方法全部是Protected的 + //所以不能直接通过new一个AlertDialog来创建出一个AlertDialog。 + //要创建一个AlertDialog，就要用到AlertDialog.Builder中的create()方法 + //如这里的dialog就是新建了一个AlertDialog + dialog.setTitle(R.string.app_name); + //为对话框设置标题 + dialog.setMessage(mSnippet); + //为对话框设置内容 + dialog.setPositiveButton(R.string.notealert_ok, this); + //给对话框添加"Yes"按钮 + if (isScreenOn()) { + dialog.setNegativeButton(R.string.notealert_enter, this); + }//对话框添加"No"按钮 + dialog.show().setOnDismissListener(this); + } + + public void onClick(DialogInterface dialog, int which) { + switch (which) { + //用which来选择click后下一步的操作 + case DialogInterface.BUTTON_NEGATIVE: + //这是取消操作 + Intent intent = new Intent(this, NoteEditActivity.class); + //实现两个类间的数据传输 + intent.setAction(Intent.ACTION_VIEW); + //设置动作属性 + intent.putExtra(Intent.EXTRA_UID, mNoteId); + //实现key-value对 + //EXTRA_UID为key；mNoteId为键 + startActivity(intent); + //开始动作 + break; + default: + //这是确定操作 + break; + } + } + + public void onDismiss(DialogInterface dialog) { + //忽略 + stopAlarmSound(); + //停止闹钟声音 + finish(); + //完成该动作 + } + + private void stopAlarmSound() { + if (mPlayer != null) { + mPlayer.stop(); + //停止播放 + mPlayer.release(); + //释放MediaPlayer对象 + mPlayer = null; + } + } +} +2、AlarmInitReceiver.java + +package net.micode.notes.ui; + +import android.app.AlarmManager; +import android.app.PendingIntent; +import android.content.BroadcastReceiver; +import android.content.ContentUris; +import android.content.Context; +import android.content.Intent; +import android.database.Cursor; + +import net.micode.notes.data.Notes; +import net.micode.notes.data.Notes.NoteColumns; + + +public class AlarmInitReceiver extends BroadcastReceiver { + + private static final String [] PROJECTION = new String [] { + NoteColumns.ID, + NoteColumns.ALERTED_DATE + }; + //对数据库的操作，调用标签ID和闹钟时间 + private static final int COLUMN_ID = 0; + private static final int COLUMN_ALERTED_DATE = 1; + + @Override + public void onReceive(Context context, Intent intent) { + long currentDate = System.currentTimeMillis(); + //System.currentTimeMillis()产生一个当前的毫秒 + //这个毫秒其实就是自1970年1月1日0时起的毫秒数 + Cursor c = context.getContentResolver().query(Notes.CONTENT_NOTE_URI, + PROJECTION, + NoteColumns.ALERTED_DATE + ">? AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE, + new String[] { String.valueOf(currentDate) }, + //将long变量currentDate转化为字符串 + null); + //Cursor在这里的作用是通过查找数据库中的标签内容，找到和当前系统时间相等的标签 + + if (c != null) { + if (c.moveToFirst()) { + do { + 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 + .getSystemService(Context.ALARM_SERVICE); + alermManager.set(AlarmManager.RTC_WAKEUP, alertDate, pendingIntent); + } while (c.moveToNext()); + } + c.close(); + } + //然而通过网上查找资料发现，对于闹钟机制的启动，通常需要上面的几个步骤 + //如新建Intent、PendingIntent以及AlarmManager等 + //这里就是根据数据库里的闹钟时间创建一个闹钟机制 + } +} +3、AlarmReceiver.java + +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， +//作用还需要深究但是对于setClass和addFlags的 + +4、DateTimePicker.java + +package net.micode.notes.ui; + +import java.text.DateFormatSymbols; +import java.util.Calendar; + +import net.micode.notes.R; + + +import android.content.Context; +import android.text.format.DateFormat; +import android.view.View; +import android.widget.FrameLayout; +import android.widget.NumberPicker; + +public class DateTimePicker extends FrameLayout { + //FrameLayout是布局模板之一 + //所有的子元素全部在屏幕的右上方 + private static final boolean DEFAULT_ENABLE_STATE = true; + + 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); + }// 对与小时的算法 + } + + /** + * 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()); + } + } +} +5、DateTimePickerDialog.java + +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 + +} +6、DropdownMenu.java + +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 +} +7、FoldersListAdapter.java + +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); + } + } + +} +8、NoteEditActivity.java + +package net.micode.notes.ui; + +import android.app.Activity; +import android.app.AlarmManager; +import android.app.AlertDialog; +import android.app.PendingIntent; +import android.app.SearchManager; +import android.appwidget.AppWidgetManager; +import android.content.ContentUris; +import android.content.Context; +import android.content.DialogInterface; +import android.content.Intent; +import android.content.SharedPreferences; +import android.graphics.Paint; +import android.os.Bundle; +import android.preference.PreferenceManager; +import android.text.Spannable; +import android.text.SpannableString; +import android.text.TextUtils; +import android.text.format.DateUtils; +import android.text.style.BackgroundColorSpan; +import android.util.Log; +import android.view.LayoutInflater; +import android.view.Menu; +import android.view.MenuItem; +import android.view.MotionEvent; +import android.view.View; +import android.view.View.OnClickListener; +import android.view.WindowManager; +import android.widget.CheckBox; +import android.widget.CompoundButton; +import android.widget.CompoundButton.OnCheckedChangeListener; +import android.widget.EditText; +import android.widget.ImageView; +import android.widget.LinearLayout; +import android.widget.TextView; +import android.widget.Toast; + +import net.micode.notes.R; +import net.micode.notes.data.Notes; +import net.micode.notes.data.Notes.TextNote; +import net.micode.notes.model.WorkingNote; +import net.micode.notes.model.WorkingNote.NoteSettingChangedListener; +import net.micode.notes.tool.DataUtils; +import net.micode.notes.tool.ResourceParser; +import net.micode.notes.tool.ResourceParser.TextAppearanceResources; +import net.micode.notes.ui.DateTimePickerDialog.OnDateTimeSetListener; +import net.micode.notes.ui.NoteEditText.OnTextViewChangeListener; +import net.micode.notes.widget.NoteWidgetProvider_2x; +import net.micode.notes.widget.NoteWidgetProvider_4x; + +import java.util.HashMap; +import java.util.HashSet; +import java.util.Map; +import java.util.regex.Matcher; +import java.util.regex.Pattern; + + +public class NoteEditActivity extends Activity implements OnClickListener, + NoteSettingChangedListener, OnTextViewChangeListener { + //该类主要是针对标签的编辑 + //继承了系统内部许多和监听有关的类 + private class HeadViewHolder { + public TextView tvModified; + + public ImageView ivAlertIcon; + + public TextView tvAlertDate; + + public ImageView ibSetBgColor; + } + //使用Map实现数据存储 + private static final Map sBgSelectorBtnsMap = new HashMap(); + static { + sBgSelectorBtnsMap.put(R.id.iv_bg_yellow, ResourceParser.YELLOW); + sBgSelectorBtnsMap.put(R.id.iv_bg_red, ResourceParser.RED); + sBgSelectorBtnsMap.put(R.id.iv_bg_blue, ResourceParser.BLUE); + sBgSelectorBtnsMap.put(R.id.iv_bg_green, ResourceParser.GREEN); + sBgSelectorBtnsMap.put(R.id.iv_bg_white, ResourceParser.WHITE); + //put函数是将指定值和指定键相连 + } + + private static final Map sBgSelectorSelectionMap = new HashMap(); + static { + sBgSelectorSelectionMap.put(ResourceParser.YELLOW, R.id.iv_bg_yellow_select); + sBgSelectorSelectionMap.put(ResourceParser.RED, R.id.iv_bg_red_select); + sBgSelectorSelectionMap.put(ResourceParser.BLUE, R.id.iv_bg_blue_select); + sBgSelectorSelectionMap.put(ResourceParser.GREEN, R.id.iv_bg_green_select); + sBgSelectorSelectionMap.put(ResourceParser.WHITE, R.id.iv_bg_white_select); + //put函数是将指定值和指定键相连 + } + + private static final Map sFontSizeBtnsMap = new HashMap(); + static { + sFontSizeBtnsMap.put(R.id.ll_font_large, ResourceParser.TEXT_LARGE); + sFontSizeBtnsMap.put(R.id.ll_font_small, ResourceParser.TEXT_SMALL); + sFontSizeBtnsMap.put(R.id.ll_font_normal, ResourceParser.TEXT_MEDIUM); + sFontSizeBtnsMap.put(R.id.ll_font_super, ResourceParser.TEXT_SUPER); + //put函数是将指定值和指定键相连 + } + + private static final Map sFontSelectorSelectionMap = new HashMap(); + static { + sFontSelectorSelectionMap.put(ResourceParser.TEXT_LARGE, R.id.iv_large_select); + sFontSelectorSelectionMap.put(ResourceParser.TEXT_SMALL, R.id.iv_small_select); + sFontSelectorSelectionMap.put(ResourceParser.TEXT_MEDIUM, R.id.iv_medium_select); + sFontSelectorSelectionMap.put(ResourceParser.TEXT_SUPER, R.id.iv_super_select); + //put函数是将指定值和指定键相连 + } + + private static final String TAG = "NoteEditActivity"; + + private HeadViewHolder mNoteHeaderHolder; + + private View mHeadViewPanel; + //私有化一个界面操作mHeadViewPanel，对表头的操作 + private View mNoteBgColorSelector; + //私有化一个界面操作mNoteBgColorSelector，对背景颜色的操作 + private View mFontSizeSelector; + //私有化一个界面操作mFontSizeSelector，对标签字体的操作 + private EditText mNoteEditor; + //声明编辑控件，对文本操作 + private View mNoteEditorPanel; + //私有化一个界面操作mNoteEditorPanel，文本编辑的控制板 + //private WorkingNote mWorkingNote; + public WorkingNote mWorkingNote; + //对模板WorkingNote的初始化 + private SharedPreferences mSharedPrefs; + //私有化SharedPreferences的数据存储方式 + //它的本质是基于XML文件存储key-value键值对数据 + private int mFontSizeId; + //用于操作字体的大小 + private static final String PREFERENCE_FONT_SIZE = "pref_font_size"; + + private static final int SHORTCUT_ICON_TITLE_MAX_LEN = 10; + + public static final String TAG_CHECKED = String.valueOf('\u221A'); + public static final String TAG_UNCHECKED = String.valueOf('\u25A1'); + + private LinearLayout mEditTextList; + //线性布局 + private String mUserQuery; + private Pattern mPattern; + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + this.setContentView(R.layout.note_edit); + //对数据库的访问操作 + if (savedInstanceState == null && !initActivityState(getIntent())) { + finish(); + return; + } + initResources(); + } + + /** + * Current activity may be killed when the memory is low. Once it is killed, for another time + * user load this activity, we should restore the former state + */ + @Override + protected void onRestoreInstanceState(Bundle savedInstanceState) { + super.onRestoreInstanceState(savedInstanceState); + if (savedInstanceState != null && savedInstanceState.containsKey(Intent.EXTRA_UID)) { + Intent intent = new Intent(Intent.ACTION_VIEW); + intent.putExtra(Intent.EXTRA_UID, savedInstanceState.getLong(Intent.EXTRA_UID)); + if (!initActivityState(intent)) { + finish(); + return; + } + Log.d(TAG, "Restoring from killed activity"); + }//为防止内存不足时程序的终止，在这里有一个保存现场的函数 + } + + private boolean initActivityState(Intent intent) { + /** + * If the user specified the {@link Intent#ACTION_VIEW} but not provided with id, + * then jump to the NotesListActivity + */ + mWorkingNote = null; + if (TextUtils.equals(Intent.ACTION_VIEW, intent.getAction())) { + long noteId = intent.getLongExtra(Intent.EXTRA_UID, 0); + mUserQuery = ""; + //如果用户实例化标签时，系统并未给出标签ID + /** + * Starting from the searched result + */ + //根据键值查找ID + if (intent.hasExtra(SearchManager.EXTRA_DATA_KEY)) { + noteId = Long.parseLong(intent.getStringExtra(SearchManager.EXTRA_DATA_KEY)); + mUserQuery = intent.getStringExtra(SearchManager.USER_QUERY); + } + //如果ID在数据库中未找到 + if (!DataUtils.visibleInNoteDatabase(getContentResolver(), noteId, Notes.TYPE_NOTE)) { + Intent jump = new Intent(this, NotesListActivity.class); + startActivity(jump); + //程序将跳转到上面声明的intent——jump + showToast(R.string.error_note_not_exist); + finish(); + return false; + } + //ID在数据库中找到 + else { + mWorkingNote = WorkingNote.load(this, noteId); + if (mWorkingNote == null) { + Log.e(TAG, "load note failed with note id" + noteId); + //打印出红色的错误信息 + finish(); + return false; + } + } + //setSoftInputMode——软键盘输入模式 + getWindow().setSoftInputMode( + WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN + | WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE); + } else if(TextUtils.equals(Intent.ACTION_INSERT_OR_EDIT, intent.getAction())) { + // intent.getAction() + // 大多用于broadcast发送广播时给机制（intent）设置一个action，就是一个字符串 + // 用户可以通过receive（接受）intent，通过 getAction得到的字符串，来决定做什么 + long folderId = intent.getLongExtra(Notes.INTENT_EXTRA_FOLDER_ID, 0); + int widgetId = intent.getIntExtra(Notes.INTENT_EXTRA_WIDGET_ID, + AppWidgetManager.INVALID_APPWIDGET_ID); + int widgetType = intent.getIntExtra(Notes.INTENT_EXTRA_WIDGET_TYPE, + Notes.TYPE_WIDGET_INVALIDE); + int bgResId = intent.getIntExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, + ResourceParser.getDefaultBgId(this)); + // intent.getInt（Long、String）Extra是对各变量的语法分析 + // Parse call-record note + String phoneNumber = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER); + long callDate = intent.getLongExtra(Notes.INTENT_EXTRA_CALL_DATE, 0); + if (callDate != 0 && phoneNumber != null) { + if (TextUtils.isEmpty(phoneNumber)) { + Log.w(TAG, "The call record number is null"); + } + long noteId = 0; + if ((noteId = DataUtils.getNoteIdByPhoneNumberAndCallDate(getContentResolver(), + phoneNumber, callDate)) > 0) { + mWorkingNote = WorkingNote.load(this, noteId); + if (mWorkingNote == null) { + Log.e(TAG, "load call note failed with note id" + noteId); + finish(); + return false; + } + //将电话号码与手机的号码簿相关 + } else { + mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId, + widgetType, bgResId); + mWorkingNote.convertToCallNote(phoneNumber, callDate); + // + } + } else { + mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId, widgetType, + bgResId); + }//创建一个新的WorkingNote + + getWindow().setSoftInputMode( + WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE + | WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE); + } else { + Log.e(TAG, "Intent not specified action, should not support"); + finish(); + return false; + } + mWorkingNote.setOnSettingStatusChangedListener(this); + return true; + } + + @Override + protected void onResume() { + super.onResume(); + initNoteScreen(); + } + + private void initNoteScreen() { + //对界面的初始化操作 + mNoteEditor.setTextAppearance(this, TextAppearanceResources + .getTexAppearanceResource(mFontSizeId)); + //设置外观 + if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) { + switchToListMode(mWorkingNote.getContent()); + } else { + mNoteEditor.setText(getHighlightQueryResult(mWorkingNote.getContent(), mUserQuery)); + mNoteEditor.setSelection(mNoteEditor.getText().length()); + } + for (Integer id : sBgSelectorSelectionMap.keySet()) { + findViewById(sBgSelectorSelectionMap.get(id)).setVisibility(View.GONE); + } + mHeadViewPanel.setBackgroundResource(mWorkingNote.getTitleBgResId()); + mNoteEditorPanel.setBackgroundResource(mWorkingNote.getBgColorResId()); + + mNoteHeaderHolder.tvModified.setText(DateUtils.formatDateTime(this, + mWorkingNote.getModifiedDate(), DateUtils.FORMAT_SHOW_DATE + | DateUtils.FORMAT_NUMERIC_DATE | DateUtils.FORMAT_SHOW_TIME + | DateUtils.FORMAT_SHOW_YEAR)); + + /** + * TODO: Add the menu for setting alert. Currently disable it because the DateTimePicker + * is not ready + */ + showAlertHeader(); + } + //设置闹钟的显示 + private void showAlertHeader() { + if (mWorkingNote.hasClockAlert()) { + long time = System.currentTimeMillis(); + if (time > mWorkingNote.getAlertDate()) { + mNoteHeaderHolder.tvAlertDate.setText(R.string.note_alert_expired); + } + //如果系统时间大于了闹钟设置的时间，那么闹钟失效 + else { + mNoteHeaderHolder.tvAlertDate.setText(DateUtils.getRelativeTimeSpanString( + mWorkingNote.getAlertDate(), time, DateUtils.MINUTE_IN_MILLIS)); + } + mNoteHeaderHolder.tvAlertDate.setVisibility(View.VISIBLE); + mNoteHeaderHolder.ivAlertIcon.setVisibility(View.VISIBLE); + //显示闹钟开启的图标 + } else { + mNoteHeaderHolder.tvAlertDate.setVisibility(View.GONE); + mNoteHeaderHolder.ivAlertIcon.setVisibility(View.GONE); + }; + } + + @Override + protected void onNewIntent(Intent intent) { + super.onNewIntent(intent); + initActivityState(intent); + } + + @Override + protected void onSaveInstanceState(Bundle outState) { + super.onSaveInstanceState(outState); + /** + * For new note without note id, we should firstly save it to + * generate a id. If the editing note is not worth saving, there + * is no id which is equivalent to create new note + */ + if (!mWorkingNote.existInDatabase()) { + saveNote(); + } + //在创建一个新的标签时，先在数据库中匹配 + //如果不存在，那么先在数据库中存储 + outState.putLong(Intent.EXTRA_UID, mWorkingNote.getNoteId()); + Log.d(TAG, "Save working note id: " + mWorkingNote.getNoteId() + " onSaveInstanceState"); + } + + @Override + //MotionEvent是对屏幕触控的传递机制 + public boolean dispatchTouchEvent(MotionEvent ev) { + if (mNoteBgColorSelector.getVisibility() == View.VISIBLE + && !inRangeOfView(mNoteBgColorSelector, ev)) { + mNoteBgColorSelector.setVisibility(View.GONE); + return true; + }//颜色选择器在屏幕上可见 + + if (mFontSizeSelector.getVisibility() == View.VISIBLE + && !inRangeOfView(mFontSizeSelector, ev)) { + mFontSizeSelector.setVisibility(View.GONE); + return true; + }//字体大小选择器在屏幕上可见 + return super.dispatchTouchEvent(ev); + } + //对屏幕触控的坐标进行操作 + private boolean inRangeOfView(View view, MotionEvent ev) { + int []location = new int[2]; + view.getLocationOnScreen(location); + int x = location[0]; + int y = location[1]; + if (ev.getX() < x + || ev.getX() > (x + view.getWidth()) + || ev.getY() < y + || ev.getY() > (y + view.getHeight())) + //如果触控的位置超出了给定的范围，返回false + { + return false; + } + return true; + } + + private void initResources() { + mHeadViewPanel = findViewById(R.id.note_title); + mNoteHeaderHolder = new HeadViewHolder(); + mNoteHeaderHolder.tvModified = (TextView) findViewById(R.id.tv_modified_date); + mNoteHeaderHolder.ivAlertIcon = (ImageView) findViewById(R.id.iv_alert_icon); + mNoteHeaderHolder.tvAlertDate = (TextView) findViewById(R.id.tv_alert_date); + mNoteHeaderHolder.ibSetBgColor = (ImageView) findViewById(R.id.btn_set_bg_color); + mNoteHeaderHolder.ibSetBgColor.setOnClickListener(this); + mNoteEditor = (EditText) findViewById(R.id.note_edit_view); + mNoteEditorPanel = findViewById(R.id.sv_note_edit); + mNoteBgColorSelector = findViewById(R.id.note_bg_color_selector); + for (int id : sBgSelectorBtnsMap.keySet()) { + ImageView iv = (ImageView) findViewById(id); + iv.setOnClickListener(this); + }//对标签各项属性内容的初始化 + + mFontSizeSelector = findViewById(R.id.font_size_selector); + for (int id : sFontSizeBtnsMap.keySet()) { + View view = findViewById(id); + view.setOnClickListener(this); + };//对字体大小的选择 + mSharedPrefs = PreferenceManager.getDefaultSharedPreferences(this); + mFontSizeId = mSharedPrefs.getInt(PREFERENCE_FONT_SIZE, ResourceParser.BG_DEFAULT_FONT_SIZE); + /** + * 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(mFontSizeId >= TextAppearanceResources.getResourcesSize()) { + mFontSizeId = ResourceParser.BG_DEFAULT_FONT_SIZE; + } + mEditTextList = (LinearLayout) findViewById(R.id.note_edit_list); + } + + @Override + protected void onPause() { + super.onPause(); + if(saveNote()) { + Log.d(TAG, "Note data was saved with length:" + mWorkingNote.getContent().length()); + } + clearSettingState(); + } + //和桌面小工具的同步 + private void updateWidget() { + Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE); + if (mWorkingNote.getWidgetType() == Notes.TYPE_WIDGET_2X) { + intent.setClass(this, NoteWidgetProvider_2x.class); + } else if (mWorkingNote.getWidgetType() == Notes.TYPE_WIDGET_4X) { + intent.setClass(this, NoteWidgetProvider_4x.class); + } else { + Log.e(TAG, "Unspported widget type"); + return; + } + + intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[] { + mWorkingNote.getWidgetId() + }); + + sendBroadcast(intent); + setResult(RESULT_OK, intent); + } + + public void onClick(View v) { + int id = v.getId(); + if (id == R.id.btn_set_bg_color) { + mNoteBgColorSelector.setVisibility(View.VISIBLE); + findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility( + - View.VISIBLE); + } else if (sBgSelectorBtnsMap.containsKey(id)) { + findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility( + View.GONE); + mWorkingNote.setBgColorId(sBgSelectorBtnsMap.get(id)); + mNoteBgColorSelector.setVisibility(View.GONE); + } else if (sFontSizeBtnsMap.containsKey(id)) { + findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.GONE); + mFontSizeId = sFontSizeBtnsMap.get(id); + mSharedPrefs.edit().putInt(PREFERENCE_FONT_SIZE, mFontSizeId).commit(); + findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.VISIBLE); + if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) { + getWorkingText(); + switchToListMode(mWorkingNote.getContent()); + } else { + mNoteEditor.setTextAppearance(this, + TextAppearanceResources.getTexAppearanceResource(mFontSizeId)); + } + mFontSizeSelector.setVisibility(View.GONE); + } + }//************************存在问题 + + @Override + public void onBackPressed() { + if(clearSettingState()) { + return; + } + + saveNote(); + super.onBackPressed(); + } + + private boolean clearSettingState() { + if (mNoteBgColorSelector.getVisibility() == View.VISIBLE) { + mNoteBgColorSelector.setVisibility(View.GONE); + return true; + } else if (mFontSizeSelector.getVisibility() == View.VISIBLE) { + mFontSizeSelector.setVisibility(View.GONE); + return true; + } + return false; + } + + public void onBackgroundColorChanged() { + findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility( + View.VISIBLE); + mNoteEditorPanel.setBackgroundResource(mWorkingNote.getBgColorResId()); + mHeadViewPanel.setBackgroundResource(mWorkingNote.getTitleBgResId()); + } + + @Override + //对选择菜单的准备 + public boolean onPrepareOptionsMenu(Menu menu) { + if (isFinishing()) { + return true; + } + clearSettingState(); + menu.clear(); + if (mWorkingNote.getFolderId() == Notes.ID_CALL_RECORD_FOLDER) { + getMenuInflater().inflate(R.menu.call_note_edit, menu); + // MenuInflater是用来实例化Menu目录下的Menu布局文件的 + } else { + getMenuInflater().inflate(R.menu.note_edit, menu); + } + if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) { + menu.findItem(R.id.menu_list_mode).setTitle(R.string.menu_normal_mode); + } else { + menu.findItem(R.id.menu_list_mode).setTitle(R.string.menu_list_mode); + } + if (mWorkingNote.hasClockAlert()) { + menu.findItem(R.id.menu_alert).setVisible(false); + } else { + menu.findItem(R.id.menu_delete_remind).setVisible(false); + } + return true; + } + + @Override + /* + * 函数功能：动态改变菜单选项内容 + * 函数实现：如下注释 + */ + public boolean onOptionsItemSelected(MenuItem item) { + switch (item.getItemId()) { + //根据菜单的id来编剧相关项目 + case R.id.menu_new_note: + //创建一个新的便签 + createNewNote(); + break; + case R.id.menu_delete: + //删除便签 + AlertDialog.Builder builder = new AlertDialog.Builder(this); + //创建关于删除操作的对话框 + builder.setTitle(getString(R.string.alert_title_delete)); + // 设置标签的标题为alert_title_delete + builder.setIcon(android.R.drawable.ic_dialog_alert); + //设置对话框图标 + builder.setMessage(getString(R.string.alert_message_delete_note)); + //设置对话框内容 + builder.setPositiveButton(android.R.string.ok, + new DialogInterface.OnClickListener() { + //建立按键监听器 + public void onClick(DialogInterface dialog, int which) { + //点击所触发事件 + deleteCurrentNote(); + // 删除单签便签 + finish(); + } + }); + //添加“YES”按钮 + builder.setNegativeButton(android.R.string.cancel, null); + //添加“NO”的按钮 + builder.show(); + //显示对话框 + break; + case R.id.menu_font_size: + //字体大小的编辑 + mFontSizeSelector.setVisibility(View.VISIBLE); + // 将字体选择器置为可见 + findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.VISIBLE); + // 通过id找到相应的大小 + break; + case R.id.menu_list_mode: + //选择列表模式 + mWorkingNote.setCheckListMode(mWorkingNote.getCheckListMode() == 0 ? + TextNote.MODE_CHECK_LIST : 0); + break; + case R.id.menu_share: + //菜单共享 + getWorkingText(); + sendTo(this, mWorkingNote.getContent()); + // 用sendto函数将运行文本发送到遍历的本文内 + break; + case R.id.menu_send_to_desktop: + //发送到桌面 + sendToDesktop(); + break; + case R.id.menu_alert: + //创建提醒器 + setReminder(); + break; + case R.id.menu_delete_remind: + //删除日期提醒 + mWorkingNote.setAlertDate(0, false); + break; + default: + break; + } + return true; + } + + /* + * 函数功能：建立事件提醒器 + * 函数实现：如下注释 + */ + private void setReminder() { + DateTimePickerDialog d = new DateTimePickerDialog(this, System.currentTimeMillis()); + // 建立修改时间日期的对话框 + d.setOnDateTimeSetListener(new OnDateTimeSetListener() { + public void OnDateTimeSet(AlertDialog dialog, long date) { + mWorkingNote.setAlertDate(date , true); + //选择提醒的日期 + } + }); + //建立时间日期的监听器 + d.show(); + //显示对话框 + } + + /** + * Share note to apps that support {@link Intent#ACTION_SEND} action + * and {@text/plain} type + */ + /* + * 函数功能：共享便签 + * 函数实现：如下注释 + */ + private void sendTo(Context context, String info) { + Intent intent = new Intent(Intent.ACTION_SEND); + //建立intent链接选项 + intent.putExtra(Intent.EXTRA_TEXT, info); + //将需要传递的便签信息放入text文件中 + intent.setType("text/plain"); + //编辑连接器的类型 + context.startActivity(intent); + //在acti中进行链接 + } + + /* + * 函数功能：创建一个新的便签 + * 函数实现：如下注释 + */ + private void createNewNote() { + // Firstly, save current editing notes + //保存当前便签 + saveNote(); + + // For safety, start a new NoteEditActivity + finish(); + Intent intent = new Intent(this, NoteEditActivity.class); + //设置链接器 + intent.setAction(Intent.ACTION_INSERT_OR_EDIT); + //该活动定义为创建或编辑 + intent.putExtra(Notes.INTENT_EXTRA_FOLDER_ID, mWorkingNote.getFolderId()); + //将运行便签的id添加到INTENT_EXTRA_FOLDER_ID标记中 + startActivity(intent); + //开始activity并链接 + } + + /* + * 函数功能：删除当前便签 + * 函数实现：如下注释 + */ + private void deleteCurrentNote() { + if (mWorkingNote.existInDatabase()) { + //假如当前运行的便签内存有数据 + HashSet ids = new HashSet(); + long id = mWorkingNote.getNoteId(); + if (id != Notes.ID_ROOT_FOLDER) { + ids.add(id); + //如果不是头文件夹建立一个hash表把便签id存起来 + } else { + Log.d(TAG, "Wrong note id, should not happen"); + //否则报错 + } + if (!isSyncMode()) { + //在非同步模式情况下 + //删除操作 + if (!DataUtils.batchDeleteNotes(getContentResolver(), ids)) { + Log.e(TAG, "Delete Note error"); + } + } else { + //同步模式 + //移动至垃圾文件夹的操作 + if (!DataUtils.batchMoveToFolder(getContentResolver(), ids, Notes.ID_TRASH_FOLER)) { + Log.e(TAG, "Move notes to trash folder error, should not happens"); + } + } + } + mWorkingNote.markDeleted(true); + //将这些标签的删除标记置为true + } + + /* + * 函数功能：判断是否为同步模式 + * 函数实现：直接看NotesPreferenceActivity中同步名称是否为空 + */ + private boolean isSyncMode() { + return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0; + } + + /* + * 函数功能：设置提醒时间 + * 函数实现：如下注释 + */ + public void onClockAlertChanged(long date, boolean set) { + /** + * User could set clock to an unsaved note, so before setting the + * alert clock, we should save the note first + */ + if (!mWorkingNote.existInDatabase()) { + //首先保存已有的便签 + saveNote(); + } + if (mWorkingNote.getNoteId() > 0) { + Intent intent = new Intent(this, AlarmReceiver.class); + intent.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mWorkingNote.getNoteId())); + //若有有运行的便签就是建立一个链接器将标签id都存在uri中 + PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0); + AlarmManager alarmManager = ((AlarmManager) getSystemService(ALARM_SERVICE)); + //设置提醒管理器 + showAlertHeader(); + if(!set) { + alarmManager.cancel(pendingIntent); + } else { + alarmManager.set(AlarmManager.RTC_WAKEUP, date, pendingIntent); + } + //如果用户设置了时间，就通过提醒管理器设置一个监听事项 + } else { + /** + * There is the condition that user has input nothing (the note is + * not worthy saving), we have no note id, remind the user that he + * should input something + */ + //没有运行的便签就报错 + Log.e(TAG, "Clock alert setting error"); + showToast(R.string.error_note_empty_for_clock); + } + } + + /* + * 函数功能：Widget发生改变的所触发的事件 + */ + public void onWidgetChanged() { + updateWidget();//更新Widget + } + + /* + * 函数功能： 删除编辑文本框所触发的事件 + * 函数实现：如下注释 + */ + public void onEditTextDelete(int index, String text) { + int childCount = mEditTextList.getChildCount(); + if (childCount == 1) { + return; + } + //没有编辑框的话直接返回 + for (int i = index + 1; i < childCount; i++) { + ((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text)) + .setIndex(i - 1); + //通过id把编辑框存在便签编辑框中 + } + + mEditTextList.removeViewAt(index); + //删除特定位置的视图 + NoteEditText edit = null; + if(index == 0) { + edit = (NoteEditText) mEditTextList.getChildAt(0).findViewById( + R.id.et_edit_text); + } else { + edit = (NoteEditText) mEditTextList.getChildAt(index - 1).findViewById( + R.id.et_edit_text); + } + //通过id把编辑框存在空的NoteEditText中 + int length = edit.length(); + edit.append(text); + edit.requestFocus();//请求优先完成该此 编辑 + edit.setSelection(length);//定位到length位置处的条目 + } + + /* + * 函数功能：进入编辑文本框所触发的事件 + * 函数实现：如下注释 + */ + public void onEditTextEnter(int index, String text) { + /** + * Should not happen, check for debug + */ + if(index > mEditTextList.getChildCount()) { + Log.e(TAG, "Index out of mEditTextList boundrary, should not happen"); + //越界把偶偶 + } + + View view = getListItem(text, index); + mEditTextList.addView(view, index); + //建立一个新的视图并添加到编辑文本框内 + NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text); + edit.requestFocus();//请求优先操作 + edit.setSelection(0);//定位到起始位置 + for (int i = index + 1; i < mEditTextList.getChildCount(); i++) { + ((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text)) + .setIndex(i); + //遍历子文本框并设置对应对下标 + } + } + + /* + * 函数功能：切换至列表模式 + * 函数实现：如下注释 + */ + private void switchToListMode(String text) { + mEditTextList.removeAllViews(); + String[] items = text.split("\n"); + int index = 0; + //清空所有视图，初始化下标 + for (String item : items) { + if(!TextUtils.isEmpty(item)) { + mEditTextList.addView(getListItem(item, index)); + index++; + //遍历所有文本单元并添加到文本框中 + } + } + mEditTextList.addView(getListItem("", index)); + mEditTextList.getChildAt(index).findViewById(R.id.et_edit_text).requestFocus(); + //优先请求此操作 + + mNoteEditor.setVisibility(View.GONE); + //便签编辑器不可见 + mEditTextList.setVisibility(View.VISIBLE); + //将文本编辑框置为可见 + } + + /* + * 函数功能：获取高亮效果的反馈情况 + * 函数实现：如下注释 + */ + private Spannable getHighlightQueryResult(String fullText, String userQuery) { + SpannableString spannable = new SpannableString(fullText == null ? "" : fullText); + //新建一个效果选项 + if (!TextUtils.isEmpty(userQuery)) { + mPattern = Pattern.compile(userQuery); + //将用户的询问进行解析 + Matcher m = mPattern.matcher(fullText); + //建立一个状态机检查Pattern并进行匹配 + int start = 0; + while (m.find(start)) { + spannable.setSpan( + new BackgroundColorSpan(this.getResources().getColor( + R.color.user_query_highlight)), m.start(), m.end(), + Spannable.SPAN_INCLUSIVE_EXCLUSIVE); + //设置背景颜色 + start = m.end(); + //跟新起始位置 + } + } + return spannable; + } + + /* + * 函数功能：获取列表项 + * 函数实现：如下注释 + */ + private View getListItem(String item, int index) { + View view = LayoutInflater.from(this).inflate(R.layout.note_edit_list_item, null); + //创建一个视图 + final NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text); + edit.setTextAppearance(this, TextAppearanceResources.getTexAppearanceResource(mFontSizeId)); + //创建一个文本编辑框并设置可见性 + CheckBox cb = ((CheckBox) view.findViewById(R.id.cb_edit_item)); + cb.setOnCheckedChangeListener(new OnCheckedChangeListener() { + public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { + if (isChecked) { + edit.setPaintFlags(edit.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG); + } else { + edit.setPaintFlags(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG); + } + } + }); + //建立一个打钩框并设置监听器 + + if (item.startsWith(TAG_CHECKED)) { + //选择勾选 + cb.setChecked(true); + edit.setPaintFlags(edit.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG); + item = item.substring(TAG_CHECKED.length(), item.length()).trim(); + } else if (item.startsWith(TAG_UNCHECKED)) { + //选择不勾选 + cb.setChecked(false); + edit.setPaintFlags(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG); + item = item.substring(TAG_UNCHECKED.length(), item.length()).trim(); + } + + edit.setOnTextViewChangeListener(this); + edit.setIndex(index); + edit.setText(getHighlightQueryResult(item, mUserQuery)); + //运行编辑框的监听器对该行为作出反应，并设置下标及文本内容 + return view; + } + + /* + * 函数功能：便签内容发生改变所 触发的事件 + * 函数实现：如下注释 + */ + public void onTextChange(int index, boolean hasText) { + if (index >= mEditTextList.getChildCount()) { + Log.e(TAG, "Wrong index, should not happen"); + return; + //越界报错 + } + if(hasText) { + mEditTextList.getChildAt(index).findViewById(R.id.cb_edit_item).setVisibility(View.VISIBLE); + } else { + mEditTextList.getChildAt(index).findViewById(R.id.cb_edit_item).setVisibility(View.GONE); + } + //如果内容不为空则将其子编辑框可见性置为可见，否则不可见 + } + + /* + * 函数功能：检查模式和列表模式的切换 + * 函数实现：如下注释 + */ + public void onCheckListModeChanged(int oldMode, int newMode) { + if (newMode == TextNote.MODE_CHECK_LIST) { + switchToListMode(mNoteEditor.getText().toString()); + //检查模式切换到列表模式 + } else { + if (!getWorkingText()) { + mWorkingNote.setWorkingText(mWorkingNote.getContent().replace(TAG_UNCHECKED + " ", + "")); + } + //若是获取到文本就改变其检查标记 + mNoteEditor.setText(getHighlightQueryResult(mWorkingNote.getContent(), mUserQuery)); + mEditTextList.setVisibility(View.GONE); + mNoteEditor.setVisibility(View.VISIBLE); + //修改文本编辑器的内容和可见性 + } + } + + /* + * 函数功能：设置勾选选项表并返回是否勾选的标记 + * 函数实现：如下注释 + */ + private boolean getWorkingText() { + boolean hasChecked = false; + //初始化check标记 + if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) { + // 若模式为CHECK_LIST + StringBuilder sb = new StringBuilder(); + //创建可变字符串 + for (int i = 0; i < mEditTextList.getChildCount(); i++) { + View view = mEditTextList.getChildAt(i); + //遍历所有子编辑框的视图 + NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text); + if (!TextUtils.isEmpty(edit.getText())) { + //若文本不为空 + if (((CheckBox) view.findViewById(R.id.cb_edit_item)).isChecked()) { + //该选项框已打钩 + sb.append(TAG_CHECKED).append(" ").append(edit.getText()).append("\n"); + hasChecked = true; + //扩展字符串为已打钩并把标记置true + } else { + sb.append(TAG_UNCHECKED).append(" ").append(edit.getText()).append("\n"); + //扩展字符串添加未打钩 + } + } + } + mWorkingNote.setWorkingText(sb.toString()); + //利用编辑好的字符串设置运行便签的内容 + } else { + mWorkingNote.setWorkingText(mNoteEditor.getText().toString()); + // 若不是该模式直接用编辑器中的内容设置运行中标签的内容 + } + return hasChecked; + } + + /* + * 函数功能：保存便签 + * 函数实现：如下注释 + */ + private boolean saveNote() { + getWorkingText(); + boolean saved = mWorkingNote.saveNote(); + //运行 getWorkingText()之后保存 + if (saved) { + /** + * There are two modes from List view to edit view, open one note, + * create/edit a node. Opening node requires to the original + * position in the list when back from edit view, while creating a + * new node requires to the top of the list. This code + * {@link #RESULT_OK} is used to identify the create/edit state + */ + //如英文注释所说链接RESULT_OK是为了识别保存的2种情况，一是创建后保存，二是修改后保存 + setResult(RESULT_OK); + } + return saved; + } + + /* + * 函数功能：将便签发送至桌面 + * 函数实现：如下注释 + */ + private void sendToDesktop() { + /** + * Before send message to home, we should make sure that current + * editing note is exists in databases. So, for new note, firstly + * save it + */ + if (!mWorkingNote.existInDatabase()) { + saveNote(); + //若不存在数据也就是新的标签就保存起来先 + } + + if (mWorkingNote.getNoteId() > 0) { + //若是有内容 + Intent sender = new Intent(); + Intent shortcutIntent = new Intent(this, NoteEditActivity.class); + //建立发送到桌面的连接器 + shortcutIntent.setAction(Intent.ACTION_VIEW); + //链接为一个视图 + shortcutIntent.putExtra(Intent.EXTRA_UID, mWorkingNote.getNoteId()); + sender.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent); + sender.putExtra(Intent.EXTRA_SHORTCUT_NAME, + makeShortcutIconTitle(mWorkingNote.getContent())); + sender.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, + Intent.ShortcutIconResource.fromContext(this, R.drawable.icon_app)); + sender.putExtra("duplicate", true); + //将便签的相关信息都添加到要发送的文件里 + sender.setAction("com.android.launcher.action.INSTALL_SHORTCUT"); + //设置sneder的行为是发送 + showToast(R.string.info_note_enter_desktop); + sendBroadcast(sender); + //显示到桌面 + } else { + /** + * There is the condition that user has input nothing (the note is + * not worthy saving), we have no note id, remind the user that he + * should input something + */ + Log.e(TAG, "Send to desktop error"); + showToast(R.string.error_note_empty_for_send_to_desktop); + //空便签直接报错 + } + } + + /* + * 函数功能：编辑小图标的标题 + * 函数实现：如下注释 + */ + private String makeShortcutIconTitle(String content) { + content = content.replace(TAG_CHECKED, ""); + content = content.replace(TAG_UNCHECKED, ""); + return content.length() > SHORTCUT_ICON_TITLE_MAX_LEN ? content.substring(0, + SHORTCUT_ICON_TITLE_MAX_LEN) : content; + //直接设置为content中的内容并返回，有勾选和未勾选2种 + } + + /* + * 函数功能：显示提示的视图 + * 函数实现：根据下标显示对应的提示 + */ + private void showToast(int resId) { + showToast(resId, Toast.LENGTH_SHORT); + } + + /* + * 函数功能：持续显示提示的视图 + * 函数实现：根据下标和持续的时间（duration）编辑提示视图并显示 + */ + private void showToast(int resId, int duration) { + Toast.makeText(this, resId, duration).show(); + } +} +9、NoteEditText.java + +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 sSchemaActionResMap = new HashMap(); + 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 construct or stub + } + + @Override + //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。*/ + 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); + } + + @Override + /* + * 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 + */ + 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); + } +} +10、NoteItemData.java + +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, + }; + //常量标记和数据就不一一标记了，意义翻译基本就知道 + 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) { + //初始化几个标记，cursor具体功能笔记中已提到，不一一叙述 + 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"); + } + } + } + } +///以下都是获取标记没什么好说的，不过倒数第二个需要说明下，很具体看下面 + 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); + } +} +11、NotesListActivity.java + +package net.micode.notes.ui; + +import android.app.Activity; +import android.app.AlertDialog; +import android.app.Dialog; +import android.appwidget.AppWidgetManager; +import android.content.AsyncQueryHandler; +import android.content.ContentResolver; +import android.content.ContentValues; +import android.content.Context; +import android.content.DialogInterface; +import android.content.Intent; +import android.content.SharedPreferences; +import android.database.Cursor; +import android.os.AsyncTask; +import android.os.Bundle; +import android.preference.PreferenceManager; +import android.text.Editable; +import android.text.TextUtils; +import android.text.TextWatcher; +import android.util.Log; +import android.view.ActionMode; +import android.view.ContextMenu; +import android.view.ContextMenu.ContextMenuInfo; +import android.view.Display; +import android.view.HapticFeedbackConstants; +import android.view.LayoutInflater; +import android.view.Menu; +import android.view.MenuItem; +import android.view.MenuItem.OnMenuItemClickListener; +import android.view.MotionEvent; +import android.view.View; +import android.view.View.OnClickListener; +import android.view.View.OnCreateContextMenuListener; +import android.view.View.OnTouchListener; +import android.view.inputmethod.InputMethodManager; +import android.widget.AdapterView; +import android.widget.AdapterView.OnItemClickListener; +import android.widget.AdapterView.OnItemLongClickListener; +import android.widget.Button; +import android.widget.EditText; +import android.widget.ListView; +import android.widget.PopupMenu; +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; +import net.micode.notes.model.WorkingNote; +import net.micode.notes.tool.BackupUtils; +import net.micode.notes.tool.DataUtils; +import net.micode.notes.tool.ResourceParser; +import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute; +import net.micode.notes.widget.NoteWidgetProvider_2x; +import net.micode.notes.widget.NoteWidgetProvider_4x; + +import java.io.BufferedReader; +import java.io.IOException; +import java.io.InputStream; +import java.io.InputStreamReader; +import java.util.HashSet; +//主界面，一进入就是这个界面 +/** + * @author k + * + */ +public class NotesListActivity extends Activity implements OnClickListener, OnItemLongClickListener { //没有用特定的标签加注释。。。感觉没有什么用 + private static final int FOLDER_NOTE_LIST_QUERY_TOKEN = 0; + + private static final int FOLDER_LIST_QUERY_TOKEN = 1; + + private static final int MENU_FOLDER_DELETE = 0; + + private static final int MENU_FOLDER_VIEW = 1; + + private static final int MENU_FOLDER_CHANGE_NAME = 2; + + private static final String PREFERENCE_ADD_INTRODUCTION = "net.micode.notes.introduction"; //单行超过80个字符 + + private enum ListEditState { + NOTE_LIST, SUB_FOLDER, CALL_RECORD_FOLDER + }; + + private ListEditState mState; + + private BackgroundQueryHandler mBackgroundQueryHandler; + + private NotesListAdapter mNotesListAdapter; + + private ListView mNotesListView; + + private Button mAddNewNote; + + private boolean mDispatch; + + private int mOriginY; + + private int mDispatchY; + + private TextView mTitleBar; + + private long mCurrentFolderId; + + private ContentResolver mContentResolver; + + private ModeCallback mModeCallBack; + + private static final String TAG = "NotesListActivity"; + + public static final int NOTES_LISTVIEW_SCROLL_RATE = 30; + + private NoteItemData mFocusNoteDataItem; + + private static final String NORMAL_SELECTION = NoteColumns.PARENT_ID + "=?"; + + private static final String ROOT_FOLDER_SELECTION = "(" + NoteColumns.TYPE + "<>" + + Notes.TYPE_SYSTEM + " AND " + NoteColumns.PARENT_ID + "=?)" + " OR (" + + NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER + " AND " + + NoteColumns.NOTES_COUNT + ">0)"; + + private final static int REQUEST_CODE_OPEN_NODE = 102; + private final static int REQUEST_CODE_NEW_NODE = 103; + + @Override + // 创建类 + protected void onCreate(final Bundle savedInstanceState) { //需要是final类型 根据程序上下文环境，Java关键字final有“这是无法改变的”或者“终态的”含义，它可以修饰非抽象类、非抽象类成员方法和变量。你可能出于两种理解而需要阻止改变：设计或效率。 + // final类不能被继承，没有子类，final类中的方法默认是final的。 + //final方法不能被子类的方法覆盖，但可以被继承。 + //final成员变量表示常量，只能被赋值一次，赋值后值不再改变。 + //final不能用于修饰构造方法。 + super.onCreate(savedInstanceState); // 调用父类的onCreate函数 + setContentView(R.layout.note_list); + initResources(); + + /** + * Insert an introduction when user firstly use this application + */ + setAppInfoFromRawRes(); + } + + @Override + // 返回一些子模块完成的数据交给主Activity处理 + protected void onActivityResult(int requestCode, int resultCode, Intent data) { + // 结果值 和 要求值 符合要求 + if (resultCode == RESULT_OK + && (requestCode == REQUEST_CODE_OPEN_NODE || requestCode == REQUEST_CODE_NEW_NODE)) { + mNotesListAdapter.changeCursor(null); + } else { + super.onActivityResult(requestCode, resultCode, data); + // 调用 Activity 的onActivityResult（） + } + } + + private void setAppInfoFromRawRes() { + // Android平台给我们提供了一个SharedPreferences类，它是一个轻量级的存储类，特别适合用于保存软件配置参数。 + SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this); + if (!sp.getBoolean(PREFERENCE_ADD_INTRODUCTION, false)) { + StringBuilder sb = new StringBuilder(); + InputStream in = null; + try { + // 把资源文件放到应用程序的/raw/raw下，那么就可以在应用中使用getResources获取资源后, + // 以openRawResource方法（不带后缀的资源文件名）打开这个文件。 + in = getResources().openRawResource(R.raw.introduction); + if (in != null) { + InputStreamReader isr = new InputStreamReader(in); + BufferedReader br = new BufferedReader(isr); + char [] buf = new char[1024]; // 自行定义的数值，使用者不知道有什么意义 + int len = 0; + while ((len = br.read(buf)) > 0) { + sb.append(buf, 0, len); + } + } else { + Log.e(TAG, "Read introduction file error"); + return; + } + } catch (IOException e) { + e.printStackTrace(); + return; + } finally { + if (in != null) { + try { + in.close(); + } catch (IOException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } + } + } + + // 创建空的WorkingNote + WorkingNote note = WorkingNote.createEmptyNote(this, Notes.ID_ROOT_FOLDER, + AppWidgetManager.INVALID_APPWIDGET_ID, Notes.TYPE_WIDGET_INVALIDE, + ResourceParser.RED); + note.setWorkingText(sb.toString()); + if (note.saveNote()) { + // 更新保存note的信息 + sp.edit().putBoolean(PREFERENCE_ADD_INTRODUCTION, true).commit(); + } else { + Log.e(TAG, "Save introduction note error"); + return; + } + } + } + + @Override + protected void onStart() { + super.onStart(); + startAsyncNotesListQuery(); + } + + // 初始化资源 + private void initResources() { + mContentResolver = this.getContentResolver(); // 获取应用程序的数据，得到类似数据表的东西 + mBackgroundQueryHandler = new BackgroundQueryHandler(this.getContentResolver()); + mCurrentFolderId = Notes.ID_ROOT_FOLDER; + + // findViewById 是安卓编程的定位函数，主要是引用.R文件里的引用名 + mNotesListView = (ListView) findViewById(R.id.notes_list); // 绑定XML中的ListView，作为Item的容器 + mNotesListView.addFooterView(LayoutInflater.from(this).inflate(R.layout.note_list_footer, null), + null, false); + mNotesListView.setOnItemClickListener(new OnListItemClickListener()); + mNotesListView.setOnItemLongClickListener(this); + mNotesListAdapter = new NotesListAdapter(this); + mNotesListView.setAdapter(mNotesListAdapter); + mAddNewNote = (Button) findViewById(R.id.btn_new_note);// 在activity中要获取该按钮 + mAddNewNote.setOnClickListener(this); + mAddNewNote.setOnTouchListener(new NewNoteOnTouchListener()); + mDispatch = false; + mDispatchY = 0; + mOriginY = 0; + mTitleBar = (TextView) findViewById(R.id.tv_title_bar); + mState = ListEditState.NOTE_LIST; + mModeCallBack = new ModeCallback(); + } + + // 继承自ListView.MultiChoiceModeListener 和 OnMenuItemClickListener + private class ModeCallback implements ListView.MultiChoiceModeListener, OnMenuItemClickListener { + private DropdownMenu mDropDownMenu; + private ActionMode mActionMode; + private MenuItem mMoveMenu; + + public boolean onCreateActionMode(ActionMode mode, Menu menu) { + getMenuInflater().inflate(R.menu.note_list_options, menu); + menu.findItem(R.id.delete).setOnMenuItemClickListener(this); + mMoveMenu = menu.findItem(R.id.move); + if (mFocusNoteDataItem.getParentId() == Notes.ID_CALL_RECORD_FOLDER + || DataUtils.getUserFolderCount(mContentResolver) == 0) { + mMoveMenu.setVisible(false); + } else { + mMoveMenu.setVisible(true); + mMoveMenu.setOnMenuItemClickListener(this); + } + mActionMode = mode; + mNotesListAdapter.setChoiceMode(true); + mNotesListView.setLongClickable(false); + mAddNewNote.setVisibility(View.GONE); + + View customView = LayoutInflater.from(NotesListActivity.this).inflate( + R.layout.note_list_dropdown_menu, null); + mode.setCustomView(customView); + mDropDownMenu = new DropdownMenu(NotesListActivity.this, + (Button) customView.findViewById(R.id.selection_menu), + R.menu.note_list_dropdown); + mDropDownMenu.setOnDropdownMenuItemClickListener(new PopupMenu.OnMenuItemClickListener(){ + public boolean onMenuItemClick(final MenuItem item) { + mNotesListAdapter.selectAll(!mNotesListAdapter.isAllSelected()); + updateMenu(); + return true; + } + + }); + return true; + } + + // 更新菜单 + private void updateMenu() { + int selectedCount = mNotesListAdapter.getSelectedCount(); + // Update dropdown menu + String format = getResources().getString(R.string.menu_select_title, selectedCount); + mDropDownMenu.setTitle(format); // 更改标题 + MenuItem item = mDropDownMenu.findItem(R.id.action_select_all); + if (item != null) { + if (mNotesListAdapter.isAllSelected()) { + item.setChecked(true); + item.setTitle(R.string.menu_deselect_all); + } else { + item.setChecked(false); + item.setTitle(R.string.menu_select_all); + } + } + } + + public boolean onPrepareActionMode(ActionMode mode, Menu menu) { + // TODO Auto-generated method stub + return false; + } + + public boolean onActionItemClicked(ActionMode mode, MenuItem item) { + // TODO Auto-generated method stub + return false; + } + + public void onDestroyActionMode(ActionMode mode) { + mNotesListAdapter.setChoiceMode(false); + mNotesListView.setLongClickable(true); + mAddNewNote.setVisibility(View.VISIBLE); + } + + public void finishActionMode() { + mActionMode.finish(); + } + + public void onItemCheckedStateChanged(ActionMode mode, int position, long id, + boolean checked) { + mNotesListAdapter.setCheckedItem(position, checked); + updateMenu(); + } + + public boolean onMenuItemClick(MenuItem item) { + if (mNotesListAdapter.getSelectedCount() == 0) { + Toast.makeText(NotesListActivity.this, getString(R.string.menu_select_none), + Toast.LENGTH_SHORT).show(); + return true; + } + + switch (item.getItemId()) { + case R.id.delete: + AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); + builder.setTitle(getString(R.string.alert_title_delete)); + builder.setIcon(android.R.drawable.ic_dialog_alert); + builder.setMessage(getString(R.string.alert_message_delete_notes, + mNotesListAdapter.getSelectedCount())); + builder.setPositiveButton(android.R.string.ok, + new DialogInterface.OnClickListener() { + public void onClick(DialogInterface dialog, + int which) { + batchDelete(); + } + }); + builder.setNegativeButton(android.R.string.cancel, null); + builder.show(); + break; + case R.id.move: + startQueryDestinationFolders(); + break; + default: + return false; + } + return true; + } + } + + private class NewNoteOnTouchListener implements OnTouchListener { + + public boolean onTouch(View v, MotionEvent event) { + switch (event.getAction()) { + case MotionEvent.ACTION_DOWN: { + Display display = getWindowManager().getDefaultDisplay(); + int screenHeight = display.getHeight(); + int newNoteViewHeight = mAddNewNote.getHeight(); + int start = screenHeight - newNoteViewHeight; + int eventY = start + (int) event.getY(); + /** + * Minus TitleBar's height + */ + if (mState == ListEditState.SUB_FOLDER) { + eventY -= mTitleBar.getHeight(); + start -= mTitleBar.getHeight(); + } + /** + * HACKME:When click the transparent part of "New Note" button, dispatch + * the event to the list view behind this button. The transparent part of + * "New Note" button could be expressed by formula y=-0.12x+94锛圲nit:pixel锛 + * and the line top of the button. The coordinate based on left of the "New + * Note" button. The 94 represents maximum height of the transparent part. + * Notice that, if the background of the button changes, the formula should + * also change. This is very bad, just for the UI designer's strong requirement. + */ + if (event.getY() < (event.getX() * (-0.12) + 94)) { + View view = mNotesListView.getChildAt(mNotesListView.getChildCount() - 1 + - mNotesListView.getFooterViewsCount()); + if (view != null && view.getBottom() > start + && (view.getTop() < (start + 94))) { + mOriginY = (int) event.getY(); + mDispatchY = eventY; + event.setLocation(event.getX(), mDispatchY); + mDispatch = true; + return mNotesListView.dispatchTouchEvent(event); + } + } + break; + } + case MotionEvent.ACTION_MOVE: { + if (mDispatch) { + mDispatchY += (int) event.getY() - mOriginY; + event.setLocation(event.getX(), mDispatchY); + return mNotesListView.dispatchTouchEvent(event); + } + break; + } + default: { + if (mDispatch) { + event.setLocation(event.getX(), mDispatchY); + mDispatch = false; + return mNotesListView.dispatchTouchEvent(event); + } + break; + } + } + return false; + } + + }; + + private void startAsyncNotesListQuery() { + String selection = (mCurrentFolderId == Notes.ID_ROOT_FOLDER) ? ROOT_FOLDER_SELECTION + : NORMAL_SELECTION; + mBackgroundQueryHandler.startQuery(FOLDER_NOTE_LIST_QUERY_TOKEN, null, + Notes.CONTENT_NOTE_URI, NoteItemData.PROJECTION, selection, new String[] { + String.valueOf(mCurrentFolderId) + }, NoteColumns.TYPE + " DESC," + NoteColumns.MODIFIED_DATE + " DESC"); + } + + private final class BackgroundQueryHandler extends AsyncQueryHandler { + public BackgroundQueryHandler(ContentResolver contentResolver) { + super(contentResolver); + } + + @Override + protected void onQueryComplete(int token, Object cookie, Cursor cursor) { + switch (token) { + case FOLDER_NOTE_LIST_QUERY_TOKEN: + mNotesListAdapter.changeCursor(cursor); + break; + case FOLDER_LIST_QUERY_TOKEN: + if (cursor != null && cursor.getCount() > 0) { + showFolderListMenu(cursor); + } else { + Log.e(TAG, "Query folder failed"); + } + break; + default: + return; + } + } + } + + private void showFolderListMenu(Cursor cursor) { + AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); + builder.setTitle(R.string.menu_title_select_folder); + final FoldersListAdapter adapter = new FoldersListAdapter(this, cursor); + builder.setAdapter(adapter, new DialogInterface.OnClickListener() { + + public void onClick(DialogInterface dialog, int which) { + DataUtils.batchMoveToFolder(mContentResolver, + mNotesListAdapter.getSelectedItemIds(), adapter.getItemId(which)); + Toast.makeText( + NotesListActivity.this, + getString(R.string.format_move_notes_to_folder, + mNotesListAdapter.getSelectedCount(), + adapter.getFolderName(NotesListActivity.this, which)), + Toast.LENGTH_SHORT).show(); + mModeCallBack.finishActionMode(); + } + }); + builder.show(); + } + + private void createNewNote() { + Intent intent = new Intent(this, NoteEditActivity.class); + intent.setAction(Intent.ACTION_INSERT_OR_EDIT); + intent.putExtra(Notes.INTENT_EXTRA_FOLDER_ID, mCurrentFolderId); + this.startActivityForResult(intent, REQUEST_CODE_NEW_NODE); + } + + private void batchDelete() { + new AsyncTask>() { + protected HashSet doInBackground(Void... unused) { + HashSet widgets = mNotesListAdapter.getSelectedWidget(); + if (!isSyncMode()) { + // if not synced, delete notes directly + if (DataUtils.batchDeleteNotes(mContentResolver, mNotesListAdapter + .getSelectedItemIds())) { + } else { + Log.e(TAG, "Delete notes error, should not happens"); + } + } else { + // in sync mode, we'll move the deleted note into the trash + // folder + if (!DataUtils.batchMoveToFolder(mContentResolver, mNotesListAdapter + .getSelectedItemIds(), Notes.ID_TRASH_FOLER)) { + Log.e(TAG, "Move notes to trash folder error, should not happens"); + } + } + return widgets; + } + + @Override + protected void onPostExecute(HashSet widgets) { + if (widgets != null) { + for (AppWidgetAttribute widget : widgets) { + if (widget.widgetId != AppWidgetManager.INVALID_APPWIDGET_ID + && widget.widgetType != Notes.TYPE_WIDGET_INVALIDE) { + updateWidget(widget.widgetId, widget.widgetType); + } + } + } + mModeCallBack.finishActionMode(); + } + }.execute(); + } + + private void deleteFolder(long folderId) { + if (folderId == Notes.ID_ROOT_FOLDER) { + Log.e(TAG, "Wrong folder id, should not happen " + folderId); + return; + } + + HashSet ids = new HashSet(); + ids.add(folderId); + HashSet widgets = DataUtils.getFolderNoteWidget(mContentResolver, + folderId); + if (!isSyncMode()) { + // if not synced, delete folder directly + DataUtils.batchDeleteNotes(mContentResolver, ids); + } else { + // in sync mode, we'll move the deleted folder into the trash folder + DataUtils.batchMoveToFolder(mContentResolver, ids, Notes.ID_TRASH_FOLER); + } + if (widgets != null) { + for (AppWidgetAttribute widget : widgets) { + if (widget.widgetId != AppWidgetManager.INVALID_APPWIDGET_ID + && widget.widgetType != Notes.TYPE_WIDGET_INVALIDE) { + updateWidget(widget.widgetId, widget.widgetType); + } + } + } + } + + private void openNode(NoteItemData data) { + Intent intent = new Intent(this, NoteEditActivity.class); + intent.setAction(Intent.ACTION_VIEW); + intent.putExtra(Intent.EXTRA_UID, data.getId()); + this.startActivityForResult(intent, REQUEST_CODE_OPEN_NODE); + } + + private void openFolder(NoteItemData data) { + mCurrentFolderId = data.getId(); + startAsyncNotesListQuery(); + if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) { + mState = ListEditState.CALL_RECORD_FOLDER; + mAddNewNote.setVisibility(View.GONE); + } else { + mState = ListEditState.SUB_FOLDER; + } + if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) { + mTitleBar.setText(R.string.call_record_folder_name); + } else { + mTitleBar.setText(data.getSnippet()); + } + mTitleBar.setVisibility(View.VISIBLE); + } + + public void onClick(View v) { + switch (v.getId()) { + case R.id.btn_new_note: + createNewNote(); + break; + default: + break; + } + } + + private void showSoftInput() { + InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); + if (inputMethodManager != null) { + inputMethodManager.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0); + } + } + + private void hideSoftInput(View view) { + InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); + inputMethodManager.hideSoftInputFromWindow(view.getWindowToken(), 0); + } + + private void showCreateOrModifyFolderDialog(final boolean create) { + final AlertDialog.Builder builder = new AlertDialog.Builder(this); + View view = LayoutInflater.from(this).inflate(R.layout.dialog_edit_text, null); + final EditText etName = (EditText) view.findViewById(R.id.et_foler_name); + showSoftInput(); + if (!create) { + if (mFocusNoteDataItem != null) { + etName.setText(mFocusNoteDataItem.getSnippet()); + builder.setTitle(getString(R.string.menu_folder_change_name)); + } else { + Log.e(TAG, "The long click data item is null"); + return; + } + } else { + etName.setText(""); + builder.setTitle(this.getString(R.string.menu_create_folder)); + } + + builder.setPositiveButton(android.R.string.ok, null); + builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() { + public void onClick(DialogInterface dialog, int which) { + hideSoftInput(etName); + } + }); + + final Dialog dialog = builder.setView(view).show(); + final Button positive = (Button)dialog.findViewById(android.R.id.button1); + positive.setOnClickListener(new OnClickListener() { + public void onClick(View v) { + hideSoftInput(etName); + String name = etName.getText().toString(); + if (DataUtils.checkVisibleFolderName(mContentResolver, name)) { + Toast.makeText(NotesListActivity.this, getString(R.string.folder_exist, name), + Toast.LENGTH_LONG).show(); + etName.setSelection(0, etName.length()); + return; + } + if (!create) { + if (!TextUtils.isEmpty(name)) { + ContentValues values = new ContentValues(); + values.put(NoteColumns.SNIPPET, name); + values.put(NoteColumns.TYPE, Notes.TYPE_FOLDER); + values.put(NoteColumns.LOCAL_MODIFIED, 1); + mContentResolver.update(Notes.CONTENT_NOTE_URI, values, NoteColumns.ID + + "=?", new String[] { + String.valueOf(mFocusNoteDataItem.getId()) + }); + } + } else if (!TextUtils.isEmpty(name)) { + ContentValues values = new ContentValues(); + values.put(NoteColumns.SNIPPET, name); + values.put(NoteColumns.TYPE, Notes.TYPE_FOLDER); + mContentResolver.insert(Notes.CONTENT_NOTE_URI, values); + } + dialog.dismiss(); + } + }); + + if (TextUtils.isEmpty(etName.getText())) { + positive.setEnabled(false); + } + /** + * When the name edit text is null, disable the positive button + */ + etName.addTextChangedListener(new TextWatcher() { + public void beforeTextChanged(CharSequence s, int start, int count, int after) { + // TODO Auto-generated method stub + + } + + public void onTextChanged(CharSequence s, int start, int before, int count) { + if (TextUtils.isEmpty(etName.getText())) { + positive.setEnabled(false); + } else { + positive.setEnabled(true); + } + } + + public void afterTextChanged(Editable s) { + // TODO Auto-generated method stub + + } + }); + } + + /* (non-Javadoc) + * @see android.app.Activity#onBackPressed() + * 按返回键时根据情况更改类中的数据 + */ + @Override + public void onBackPressed() { switch (mState) { + case SUB_FOLDER: + mCurrentFolderId = Notes.ID_ROOT_FOLDER; + mState = ListEditState.NOTE_LIST; + startAsyncNotesListQuery(); + mTitleBar.setVisibility(View.GONE); + break; + case CALL_RECORD_FOLDER: + mCurrentFolderId = Notes.ID_ROOT_FOLDER; + mState = ListEditState.NOTE_LIST; + mAddNewNote.setVisibility(View.VISIBLE); + mTitleBar.setVisibility(View.GONE); + startAsyncNotesListQuery(); + break; + case NOTE_LIST: + super.onBackPressed(); + break; + default: + break; + } + } + + /** + * @param appWidgetId + * @param appWidgetType + * 根据不同类型的widget更新插件，通过intent传送数据 + */ + private void updateWidget(int appWidgetId, int appWidgetType) { + Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE); + if (appWidgetType == Notes.TYPE_WIDGET_2X) { + intent.setClass(this, NoteWidgetProvider_2x.class); + } else if (appWidgetType == Notes.TYPE_WIDGET_4X) { + intent.setClass(this, NoteWidgetProvider_4x.class); + } else { + Log.e(TAG, "Unspported widget type"); + return; + } + + intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[] { + appWidgetId + }); + + sendBroadcast(intent); + setResult(RESULT_OK, intent); + } + + /** + * 声明监听器，建立菜单，包括名称，视图，删除操作，更改名称操作； + */ + private final OnCreateContextMenuListener mFolderOnCreateContextMenuListener = new OnCreateContextMenuListener() { + public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { + if (mFocusNoteDataItem != null) { + menu.setHeaderTitle(mFocusNoteDataItem.getSnippet()); + menu.add(0, MENU_FOLDER_VIEW, 0, R.string.menu_folder_view); + menu.add(0, MENU_FOLDER_DELETE, 0, R.string.menu_folder_delete); + menu.add(0, MENU_FOLDER_CHANGE_NAME, 0, R.string.menu_folder_change_name); + } + } + }; + + @Override + public void onContextMenuClosed(Menu menu) { + if (mNotesListView != null) { + mNotesListView.setOnCreateContextMenuListener(null); + } + super.onContextMenuClosed(menu); + } + + /* (non-Javadoc) + * @see android.app.Activity#onContextItemSelected(android.view.MenuItem) + * 针对menu中不同的选择进行不同的处理，里面详细注释 + */ + @Override + public boolean onContextItemSelected(MenuItem item) { + if (mFocusNoteDataItem == null) { + Log.e(TAG, "The long click data item is null"); + return false; + } + switch (item.getItemId()) { + case MENU_FOLDER_VIEW: + openFolder(mFocusNoteDataItem);//打开对应文件 + break; + case MENU_FOLDER_DELETE: + AlertDialog.Builder builder = new AlertDialog.Builder(this);//设置确认是否删除的对话框 + builder.setTitle(getString(R.string.alert_title_delete)); + builder.setIcon(android.R.drawable.ic_dialog_alert); + builder.setMessage(getString(R.string.alert_message_delete_folder)); + builder.setPositiveButton(android.R.string.ok, + new DialogInterface.OnClickListener() { + public void onClick(DialogInterface dialog, int which) { + deleteFolder(mFocusNoteDataItem.getId()); + } + }); + builder.setNegativeButton(android.R.string.cancel, null); + builder.show();//显示对话框 + break; + case MENU_FOLDER_CHANGE_NAME: + showCreateOrModifyFolderDialog(false); + break; + default: + break; + } + + return true; + } + + @Override + public boolean onPrepareOptionsMenu(Menu menu) { + menu.clear(); + if (mState == ListEditState.NOTE_LIST) { + getMenuInflater().inflate(R.menu.note_list, menu); + // set sync or sync_cancel + menu.findItem(R.id.menu_sync).setTitle( + GTaskSyncService.isSyncing() ? R.string.menu_sync_cancel : R.string.menu_sync); + } else if (mState == ListEditState.SUB_FOLDER) { + getMenuInflater().inflate(R.menu.sub_folder, menu); + } else if (mState == ListEditState.CALL_RECORD_FOLDER) { + getMenuInflater().inflate(R.menu.call_record_folder, menu); + } else { + Log.e(TAG, "Wrong state:" + mState); + } + return true; + } + + @Override + public boolean onOptionsItemSelected(MenuItem item) { + switch (item.getItemId()) { + case R.id.menu_new_folder: { + showCreateOrModifyFolderDialog(true); + break; + } + case R.id.menu_export_text: { + exportNoteToText(); + break; + } + case R.id.menu_sync: { + if (isSyncMode()) { + if (TextUtils.equals(item.getTitle(), getString(R.string.menu_sync))) { + GTaskSyncService.startSync(this); + } else { + GTaskSyncService.cancelSync(this); + } + } else { + startPreferenceActivity(); + } + break; + } + case R.id.menu_setting: { + startPreferenceActivity(); + break; + } + case R.id.menu_new_note: { + createNewNote(); + break; + } + case R.id.menu_search: + onSearchRequested(); + break; + default: + break; + } + return true; + } + + /* (non-Javadoc) + * @see android.app.Activity#onSearchRequested() + * 直接调用startSearch函数 + */ + @Override + public boolean onSearchRequested() { + startSearch(null, false, null /* appData */, false); + return true; + } + + /** + * 函数功能：实现将便签导出到文本功能 + */ + private void exportNoteToText() { + final BackupUtils backup = BackupUtils.getInstance(NotesListActivity.this); + new AsyncTask() { + + @Override + protected Integer doInBackground(Void... unused) { + return backup.exportToText(); + } + + @Override + protected void onPostExecute(Integer result) { + if (result == BackupUtils.STATE_SD_CARD_UNMOUONTED) { + AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); + builder.setTitle(NotesListActivity.this + .getString(R.string.failed_sdcard_export)); + builder.setMessage(NotesListActivity.this + .getString(R.string.error_sdcard_unmounted)); + builder.setPositiveButton(android.R.string.ok, null); + builder.show(); + } else if (result == BackupUtils.STATE_SUCCESS) { + AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); + builder.setTitle(NotesListActivity.this + .getString(R.string.success_sdcard_export)); + builder.setMessage(NotesListActivity.this.getString( + R.string.format_exported_file_location, backup + .getExportedTextFileName(), backup.getExportedTextFileDir())); + builder.setPositiveButton(android.R.string.ok, null); + builder.show(); + } else if (result == BackupUtils.STATE_SYSTEM_ERROR) { + AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); + builder.setTitle(NotesListActivity.this + .getString(R.string.failed_sdcard_export)); + builder.setMessage(NotesListActivity.this + .getString(R.string.error_sdcard_export)); + builder.setPositiveButton(android.R.string.ok, null); + builder.show(); + } + } + + }.execute(); + } + + /** + * @return + * 功能：判断是否正在同步 + */ + private boolean isSyncMode() { + return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0; + } + + /** + * 功能：跳转到PreferenceActivity界面 + */ + private void startPreferenceActivity() { + Activity from = getParent() != null ? getParent() : this; + Intent intent = new Intent(from, NotesPreferenceActivity.class); + from.startActivityIfNeeded(intent, -1); + } + + /** + * @author k + * 函数功能：实现对便签列表项的点击事件（短按） + */ + private class OnListItemClickListener implements OnItemClickListener { + + public void onItemClick(AdapterView parent, View view, int position, long id) { + if (view instanceof NotesListItem) { + NoteItemData item = ((NotesListItem) view).getItemData(); + if (mNotesListAdapter.isInChoiceMode()) { + if (item.getType() == Notes.TYPE_NOTE) { + position = position - mNotesListView.getHeaderViewsCount(); + mModeCallBack.onItemCheckedStateChanged(null, position, id, + !mNotesListAdapter.isSelectedItem(position)); + } + return; + } + + switch (mState) { + case NOTE_LIST: + if (item.getType() == Notes.TYPE_FOLDER + || item.getType() == Notes.TYPE_SYSTEM) { + openFolder(item); + } else if (item.getType() == Notes.TYPE_NOTE) { + openNode(item); + } else { + Log.e(TAG, "Wrong note type in NOTE_LIST"); + } + break; + case SUB_FOLDER: + case CALL_RECORD_FOLDER: + if (item.getType() == Notes.TYPE_NOTE) { + openNode(item); + } else { + Log.e(TAG, "Wrong note type in SUB_FOLDER"); + } + break; + default: + break; + } + } + } + + } + + /** + * 查询目标文件 + */ + private void startQueryDestinationFolders() { + String selection = NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>? AND " + NoteColumns.ID + "<>?"; + selection = (mState == ListEditState.NOTE_LIST) ? selection: + "(" + selection + ") OR (" + NoteColumns.ID + "=" + Notes.ID_ROOT_FOLDER + ")"; + + mBackgroundQueryHandler.startQuery(FOLDER_LIST_QUERY_TOKEN, + null, + Notes.CONTENT_NOTE_URI, + FoldersListAdapter.PROJECTION, + selection, + new String[] { + String.valueOf(Notes.TYPE_FOLDER), + String.valueOf(Notes.ID_TRASH_FOLER), + String.valueOf(mCurrentFolderId) + }, + NoteColumns.MODIFIED_DATE + " DESC"); + } + + /* (non-Javadoc) + * @see android.widget.AdapterView.OnItemLongClickListener#onItemLongClick(android.widget.AdapterView, android.view.View, int, long) + * 长按某一项时进行的操作 + * 如果长按的是便签，则通过ActionMode菜单实现；如果长按的是文件夹，则通过ContextMenu菜单实现； + * 具体ActionMOde菜单和ContextMenu菜单的详细见精度笔记 + */ + public boolean onItemLongClick(AdapterView parent, View view, int position, long id) { + if (view instanceof NotesListItem) { + mFocusNoteDataItem = ((NotesListItem) view).getItemData(); + if (mFocusNoteDataItem.getType() == Notes.TYPE_NOTE && !mNotesListAdapter.isInChoiceMode()) { + if (mNotesListView.startActionMode(mModeCallBack) != null) { + mModeCallBack.onItemCheckedStateChanged(null, position, id, true); + mNotesListView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); + } else { + Log.e(TAG, "startActionMode fails"); + } + } else if (mFocusNoteDataItem.getType() == Notes.TYPE_FOLDER) { + mNotesListView.setOnCreateContextMenuListener(mFolderOnCreateContextMenuListener); + } + } + return false; + } +} +12、NotesListAdapter.java + +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 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(); //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 getSelectedItemIds() { + HashSet itemSet = new HashSet(); + //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 getSelectedWidget() { + HashSet itemSet = new HashSet(); + 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 values = mSelectedIndex.values(); + //首先获取选项下标的值 + if (null == values) { + return 0; + } + Iterator 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 + } + } +} +13、NotesListItem.java + +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())); + ///关于闹钟的设置 + 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; + } +} +14、NotesPreferenceActivity.java + +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：NotesPreferenceActivity，在小米便签中主要实现的是对背景颜色和字体大小的数据储存。 + * 继承了PreferenceActivity主要功能为对系统信息和配置进行自动保存的Activity + */ +public class NotesPreferenceActivity extends PreferenceActivity { + public static final String PREFERENCE_NAME = "notes_preferences"; + //优先名 + public static final String PREFERENCE_SYNC_ACCOUNT_NAME = "pref_key_account_name"; + //同步账号 + public static final String PREFERENCE_LAST_SYNC_TIME = "pref_last_sync_time"; + //同步时间 + public static final String PREFERENCE_SET_BG_COLOR_KEY = "pref_key_bg_random_appear"; + + private static final String PREFERENCE_SYNC_ACCOUNT_KEY = "pref_sync_account_key"; + //同步密码 + private static final String AUTHORITIES_FILTER_KEY = "authorities"; + //本地密码 + private PreferenceCategory mAccountCategory; + //账户分组 + private GTaskReceiver mReceiver; + //同步任务接收器 + private Account[] mOriAccounts; + //账户 + private boolean mHasAddedAccount; + //账户的hash标记 + + @Override + /* + *函数功能：创建一个activity，在函数里要完成所有的正常静态设置 + *参数：Bundle icicle：存放了 activity 当前的状态 + *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listvivew，ListView的作用:用于列出所有选择 + getListView().addHeaderView(header, null, true); + //在listview组件上方添加其他组件 + } + + @Override + /* + * 函数功能：activity交互功能的实现，用于接受用户的输入 + * 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; + } + } +}