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/*
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* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package net.micode.notes.gtask.remote;
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import android.app.Notification;
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import android.app.NotificationManager;
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import android.app.PendingIntent;
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import android.content.Context;
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import android.content.Intent;
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import android.os.AsyncTask;
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import net.micode.notes.R;
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import net.micode.notes.ui.NotesListActivity;
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import net.micode.notes.ui.NotesPreferenceActivity;
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/**
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* <p>Google任务异步同步任务类。</p>
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* <p>设计意图：使用AsyncTask实现Google任务的异步同步操作，避免阻塞主线程，并提供用户友好的通知反馈。</p>
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* <p>核心职责：</p>
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* <ul>
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* <li>在后台线程执行Google任务的同步操作</li>
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* <li>显示同步进度和结果的通知</li>
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* <li>处理同步完成后的回调</li>
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* <li>支持取消同步操作</li>
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* </ul>
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* <p>关键关联：</p>
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* <ul>
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* <li>继承自{@link AsyncTask}，实现异步任务框架</li>
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* <li>使用{@link GTaskManager}执行实际的同步逻辑</li>
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* <li>与{@link GTaskSyncService}配合，支持服务环境下的广播通知</li>
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* <li>通过{@link OnCompleteListener}提供同步完成回调</li>
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* </ul>
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*/
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public class GTaskASyncTask extends AsyncTask<Void, String, Integer> {
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/**
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* Google任务同步通知的唯一ID
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*/
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private static int GTASK_SYNC_NOTIFICATION_ID = 5234235;
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/**
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* <p>同步完成监听器接口。</p>
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* <p>设计意图：提供Google任务同步完成后的回调机制。</p>
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*/
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public interface OnCompleteListener {
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/**
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* 同步完成时调用的方法
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*/
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void onComplete();
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}
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/**
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* 上下文对象，用于访问系统服务和资源
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*/
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private Context mContext;
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/**
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* 通知管理器，用于显示同步进度和结果通知
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*/
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private NotificationManager mNotifiManager;
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/**
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* Google任务管理器，用于执行实际的同步逻辑
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*/
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private GTaskManager mTaskManager;
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/**
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* 同步完成监听器，用于处理同步完成后的回调
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*/
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private OnCompleteListener mOnCompleteListener;
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/**
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* 构造方法，初始化Google任务异步同步任务。
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*
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* @param context 上下文对象，用于访问系统服务和资源
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* @param listener 同步完成监听器，用于处理同步完成后的回调
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*/
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public GTaskASyncTask(Context context, OnCompleteListener listener) {
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mContext = context;
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mOnCompleteListener = listener;
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mNotifiManager = (NotificationManager) mContext
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.getSystemService(Context.NOTIFICATION_SERVICE);
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mTaskManager = GTaskManager.getInstance();
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}
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/**
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* 取消正在进行的同步操作。
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*/
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public void cancelSync() {
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mTaskManager.cancelSync();
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}
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/**
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* 发布同步进度信息。
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*
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* @param message 进度信息消息
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*/
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public void publishProgess(String message) {
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publishProgress(new String[] {
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message
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});
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}
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// private void showNotification(int tickerId, String content) {
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// Notification notification = new Notification(R.drawable.notification, mContext
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// .getString(tickerId), System.currentTimeMillis());
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// notification.defaults = Notification.DEFAULT_LIGHTS;
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// notification.flags = Notification.FLAG_AUTO_CANCEL;
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// PendingIntent pendingIntent;
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// if (tickerId != R.string.ticker_success) {
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// pendingIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext,
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// NotesPreferenceActivity.class), 0);
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//
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// } else {
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// pendingIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext,
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// NotesListActivity.class), 0);
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// }
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// notification.setLatestEventInfo(mContext, mContext.getString(R.string.app_name), content,
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// pendingIntent);
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// mNotifiManager.notify(GTASK_SYNC_NOTIFICATION_ID, notification);
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// }
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/**
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* <p>显示同步通知。</p>
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* <p>业务逻辑：根据同步状态创建并显示相应的通知，支持成功、失败、取消等不同状态。</p>
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* <p>通知点击行为：
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* <ul>
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* <li>成功状态：点击打开笔记列表页面</li>
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* <li>其他状态：点击打开笔记设置页面</li>
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* </ul>
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* </p>
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*
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* @param tickerId 通知标题资源ID
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* @param content 通知内容字符串
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*/
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private void showNotification(int tickerId, String content) {
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PendingIntent pendingIntent;
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if (tickerId != R.string.ticker_success) {
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pendingIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext,
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NotesPreferenceActivity.class), PendingIntent.FLAG_IMMUTABLE);
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} else {
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pendingIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext,
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NotesListActivity.class), PendingIntent.FLAG_IMMUTABLE);
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}
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Notification.Builder builder = new Notification.Builder(mContext)
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.setAutoCancel(true)
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.setContentTitle(mContext.getString(R.string.app_name))
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.setContentText(content)
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.setContentIntent(pendingIntent)
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.setWhen(System.currentTimeMillis())
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.setOngoing(true);
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Notification notification=builder.getNotification();
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mNotifiManager.notify(GTASK_SYNC_NOTIFICATION_ID, notification);
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}
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/**
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* <p>在后台线程执行同步操作。</p>
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* <p>业务逻辑：初始化同步进度通知，调用GTaskManager执行实际的同步逻辑。</p>
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*
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* @param unused 未使用的参数
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* @return 同步结果状态码，对应GTaskManager中的STATE_*常量
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*/
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@Override
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protected Integer doInBackground(Void... unused) {
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publishProgess(mContext.getString(R.string.sync_progress_login, NotesPreferenceActivity
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.getSyncAccountName(mContext)));
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return mTaskManager.sync(mContext, this);
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}
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/**
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* <p>更新同步进度。</p>
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* <p>业务逻辑：显示当前同步进度通知，如果在服务环境下，还会发送广播通知。</p>
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*
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* @param progress 进度信息数组，其中第一个元素为进度消息
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*/
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@Override
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protected void onProgressUpdate(String... progress) {
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showNotification(R.string.ticker_syncing, progress[0]);
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if (mContext instanceof GTaskSyncService) {
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((GTaskSyncService) mContext).sendBroadcast(progress[0]);
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}
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}
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/**
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* <p>处理同步结果。</p>
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* <p>业务逻辑：根据同步结果显示相应的通知，更新最后同步时间，并调用完成监听器。</p>
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* <p>同步结果处理：
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* <ul>
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* <li>STATE_SUCCESS：显示成功通知，更新最后同步时间</li>
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* <li>STATE_NETWORK_ERROR：显示网络错误通知</li>
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* <li>STATE_INTERNAL_ERROR：显示内部错误通知</li>
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* <li>STATE_SYNC_CANCELLED：显示同步取消通知</li>
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* </ul>
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* </p>
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*
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* @param result 同步结果状态码，对应GTaskManager中的STATE_*常量
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*/
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@Override
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protected void onPostExecute(Integer result) {
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if (result == GTaskManager.STATE_SUCCESS) {
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showNotification(R.string.ticker_success, mContext.getString(
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R.string.success_sync_account, mTaskManager.getSyncAccount()));
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NotesPreferenceActivity.setLastSyncTime(mContext, System.currentTimeMillis());
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} else if (result == GTaskManager.STATE_NETWORK_ERROR) {
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showNotification(R.string.ticker_fail, mContext.getString(R.string.error_sync_network));
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} else if (result == GTaskManager.STATE_INTERNAL_ERROR) {
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showNotification(R.string.ticker_fail, mContext.getString(R.string.error_sync_internal));
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} else if (result == GTaskManager.STATE_SYNC_CANCELLED) {
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showNotification(R.string.ticker_cancel, mContext
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.getString(R.string.error_sync_cancelled));
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}
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if (mOnCompleteListener != null) {
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new Thread(new Runnable() {
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public void run() {
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mOnCompleteListener.onComplete();
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}
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}).start();
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}
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}
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}
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