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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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* GTaskASyncTask类 - 继承自AsyncTask，用于在后台执行Google Tasks同步操作
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*
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* 该类负责在后台线程中执行Google Tasks的同步工作，并在UI线程中更新同步进度和结果
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* 主要功能包括：
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* - 在后台执行同步操作
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* - 显示同步进度通知
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* - 发送同步状态广播
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* - 处理同步完成后的回调
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* - 支持取消同步操作
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*
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* @author MiCode Open Source Community
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*/
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public class GTaskASyncTask extends AsyncTask<Void, String, Integer> {
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/**
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* 同步通知的唯一标识符
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*/
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private static int GTASK_SYNC_NOTIFICATION_ID = 5234235;
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/**
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* OnCompleteListener接口 - 同步完成事件的监听器
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*
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* 该接口用于在同步操作完成后接收回调通知
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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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private Context mContext;
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private NotificationManager mNotifiManager;
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private GTaskManager mTaskManager;
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private OnCompleteListener mOnCompleteListener;
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/**
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* 构造方法，创建一个GTaskASyncTask实例
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*
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* @param context 上下文对象，用于获取系统服务和资源
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* @param listener 同步完成监听器，用于接收同步完成的回调
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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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* 该方法通过调用GTaskManager的cancelSync方法来取消同步
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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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* 发布同步进度消息
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*
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* 该方法用于向UI线程发送同步进度更新
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*
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* @param message 进度消息内容
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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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/**
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* 显示同步通知
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*
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* 该方法用于显示同步状态的通知消息，包括进度通知和结果通知
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*
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* @param tickerId 通知标题的资源ID
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* @param content 通知内容
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*/
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private void showNotification(int tickerId, String content) {
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// 1. 创建通知构建器（替代旧构造函数）
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Notification.Builder builder = new Notification.Builder(mContext)
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.setSmallIcon(R.drawable.notification) // 替代旧的第一个参数
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.setTicker(mContext.getString(tickerId)) // 替代旧的第二个参数
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.setWhen(System.currentTimeMillis()) // 替代旧的第三个参数
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.setDefaults(Notification.DEFAULT_LIGHTS) // 替代 notification.defaults
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.setAutoCancel(true) // 替代 notification.flags = FLAG_AUTO_CANCEL
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.setContentTitle(mContext.getString(R.string.app_name))
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.setContentText(content);
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// 2. 创建 PendingIntent
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Intent intent;
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if (tickerId != R.string.ticker_success) {
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intent = new Intent(mContext, NotesPreferenceActivity.class);
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} else {
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intent = new Intent(mContext, NotesListActivity.class);
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}
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// Android 12+ 需要 FLAG_IMMUTABLE 或 FLAG_MUTABLE
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PendingIntent pendingIntent = PendingIntent.getActivity(
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mContext, 0, intent, PendingIntent.FLAG_IMMUTABLE);
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// 3. 设置意图
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builder.setContentIntent(pendingIntent);
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// 4. 构建并发送通知
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Notification notification = builder.build();
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mNotifiManager.notify(GTASK_SYNC_NOTIFICATION_ID, notification);
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}
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/**
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* 在后台线程中执行同步操作
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*
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* 该方法是AsyncTask的核心方法，在后台线程中执行Google Tasks的同步工作
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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中的状态常量
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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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* 在UI线程中更新同步进度
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*
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* 当后台线程调用publishProgress方法时，该方法会在UI线程中被调用
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*
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* @param progress 进度消息数组，包含最新的进度消息
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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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* 在UI线程中处理同步完成后的结果
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*
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* 当后台线程的doInBackground方法执行完成后，该方法会在UI线程中被调用
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*
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* @param result 同步结果状态码，对应GTaskManager中的状态常量
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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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