author | Wuzzy <Wuzzy2@mail.ru> |
Thu, 15 Feb 2018 18:32:28 +0100 | |
changeset 13009 | 67cc3cac4c8e |
parent 10017 | de822cd3df3a |
permissions | -rw-r--r-- |
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/* |
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* Hedgewars for Android. An Android port of Hedgewars, a free turn based strategy game |
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* Copyright (c) 2011-2012 Richard Deurwaarder <xeli@xelification.com> |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* of the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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*/ |
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|
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package org.hedgewars.hedgeroid.Downloader; |
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import java.util.LinkedList; |
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import java.util.List; |
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import org.hedgewars.hedgeroid.R; |
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|
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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.app.Service; |
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import android.content.Intent; |
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import android.os.Handler; |
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import android.os.IBinder; |
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import android.os.Message; |
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import android.os.Messenger; |
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import android.os.RemoteException; |
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import android.widget.RemoteViews; |
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public class DownloadService extends Service { |
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public final static String INTENT_TASKID = "taskId"; |
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public final static String INTENT_TASK = "task"; |
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public static final String PREF_DOWNLOADED = "downloaded"; |
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public static final int MSG_CANCEL = 0; |
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public static final int MSG_UNREGISTER_CLIENT = 2; |
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public final static int MSG_ADDTASK = 4; |
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public static final int NOTIFICATION_PROCESSING = 0; |
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public static final int NOTIFICATION_DONE = 1; |
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private DownloadAsyncTask asyncExecutor; |
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private DownloadHandler handler = new DownloadHandler(); |
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private final Messenger messenger = new Messenger(handler); |
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private NotificationManager nM; |
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private RemoteViews contentView; |
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private LinkedList<DownloadTask> downloadTasks = new LinkedList<DownloadTask>(); |
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private DownloadTask currentTask = null; |
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public class DownloadHandler extends Handler{ |
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public void handleMessage(Message msg){ |
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if(msg.obj != null){ |
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DownloadPackage pack = (DownloadPackage) msg.obj; |
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DownloadTask task = null; |
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Messenger replyToMessenger = msg.replyTo; |
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for(DownloadTask _task : downloadTasks){ |
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if(_task.getPackage().equals(pack)){ |
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task = _task; |
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break; |
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} |
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} |
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switch(msg.what){ |
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case MSG_ADDTASK: |
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if(task == null){ |
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task = new DownloadTask(pack); |
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downloadTasks.add(task); |
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} |
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task.addClient(replyToMessenger); |
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runNextTask(); |
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return; |
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case MSG_CANCEL: |
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if(task != null && task.getPackage().equals(pack) && task.getStatus() == TASK_STATE.PENDING){ |
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downloadTasks.remove(task); |
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} |
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if(currentTask != null && currentTask.getPackage().equals(pack)){//TODO synchronization problem? |
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asyncExecutor.cancel(false); |
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} |
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return; |
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case MSG_UNREGISTER_CLIENT: |
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if(task != null){ |
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task.removeClient(replyToMessenger); |
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} |
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return; |
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} |
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} |
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} |
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} |
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public void onCreate(){ |
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super.onCreate(); |
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nM = (NotificationManager) getSystemService(NOTIFICATION_SERVICE); |
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} |
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public IBinder onBind(Intent intent) { |
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return messenger.getBinder(); |
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} |
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private void runNextTask(){ |
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if(asyncExecutor == null){//if (task isnt running right now) ... |
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currentTask = downloadTasks.poll(); |
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if(currentTask != null){ |
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asyncExecutor = new DownloadAsyncTask(currentTask); |
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asyncExecutor.execute(currentTask.getPackage()); |
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} |
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} |
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} |
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public void onDestroy(){ |
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super.onDestroy(); |
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asyncExecutor.cancel(false); |
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} |
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class DownloadTask { |
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private final DownloadPackage pack; |
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private TASK_STATE status = TASK_STATE.PENDING; |
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private Notification progressNotification, doneNotification; |
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//I expect little to no removeClient calls that's why we go for a list rather than a map |
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private final List<Messenger> clients; |
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public DownloadTask(DownloadPackage _pack){ |
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pack = _pack; |
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clients = new LinkedList<Messenger>(); |
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} |
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public void addClient(Messenger messenger){ |
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clients.add(messenger); |
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} |
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public void removeClient(Messenger messenger){ |
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clients.remove(messenger); |
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} |
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public DownloadPackage getPackage(){ |
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return pack; |
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} |
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public TASK_STATE getStatus(){ |
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return status; |
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} |
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public void sendMessageToClients(Message msg){ |
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for(Messenger messenger : clients){ |
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try { |
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messenger.send(msg); |
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} catch (RemoteException e) { |
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e.printStackTrace(); |
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} |
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} |
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} |
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/* |
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* Callbacks called from the async tasks |
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*/ |
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//Thread safe method to let clients know the processing is starting and will process int max kbytes |
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public void start(int max){ |
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progressNotification = new Notification(R.drawable.statusbar, getString(R.string.notification_title), System.currentTimeMillis()); |
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progressNotification.flags |= Notification.FLAG_ONGOING_EVENT; |
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contentView = new RemoteViews(getPackageName(), R.layout.notification); |
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contentView.setProgressBar(R.id.notification_progress, 100, 34, false); |
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progressNotification.contentView = contentView; |
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PendingIntent contentIntent = PendingIntent.getActivity(DownloadService.this, 0, new Intent(DownloadService.this, DownloadListActivity.class), Intent.FLAG_ACTIVITY_NEW_TASK); |
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progressNotification.contentIntent = contentIntent; |
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startForeground(NOTIFICATION_PROCESSING, progressNotification); |
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Message msg = Message.obtain(null, DownloadFragment.MSG_START, max, 0); |
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sendMessageToClients(msg); |
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} |
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//periodically gets called by the ASyncTask, we can't tell for sure when it's called |
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public void update(int progress, int max, String fileName){ |
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progress = (progress/1024); |
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contentView.setProgressBar(R.id.notification_progress, max, progress, false); |
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contentView.setTextViewText(R.id.progressbar_sub, String.format("%dkb/%dkb (Compressed sizes)", progress, max)); |
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nM.notify(NOTIFICATION_PROCESSING, progressNotification); |
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sendMessageToClients(Message.obtain(handler, DownloadFragment.MSG_UPDATE, progress, max, fileName)); |
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} |
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//Call back from the ASync task when the task has either run into an error or finished otherwise |
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public void done(int result){ |
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switch(result){ |
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case DownloadAsyncTask.EXIT_SUCCESS: sendMessageToClients(Message.obtain(handler, DownloadFragment.MSG_DONE)); break; |
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case DownloadAsyncTask.EXIT_CONNERROR: sendMessageToClients(Message.obtain(handler, DownloadFragment.MSG_FAILED, DownloadAsyncTask.EXIT_CONNERROR, 0)); break; |
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case DownloadAsyncTask.EXIT_FNF: sendMessageToClients(Message.obtain(handler, DownloadFragment.MSG_FAILED, DownloadAsyncTask.EXIT_FNF, 0)); break; |
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case DownloadAsyncTask.EXIT_MD5: sendMessageToClients(Message.obtain(handler, DownloadFragment.MSG_FAILED, DownloadAsyncTask.EXIT_MD5, 0)); break; |
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case DownloadAsyncTask.EXIT_URLFAIL: sendMessageToClients(Message.obtain(handler, DownloadFragment.MSG_FAILED, DownloadAsyncTask.EXIT_URLFAIL, 0)); break; |
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case DownloadAsyncTask.EXIT_CANCELLED: sendMessageToClients(Message.obtain(handler, DownloadFragment.MSG_DONE)); break; |
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} |
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stopForeground(true); |
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nM.cancel(NOTIFICATION_PROCESSING); |
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String title = getString(R.string.notification_title); |
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doneNotification = new Notification(R.drawable.icon, title, System.currentTimeMillis()); |
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doneNotification.flags |= Notification.FLAG_AUTO_CANCEL; |
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PendingIntent contentIntent = PendingIntent.getActivity(DownloadService.this, 0, new Intent(DownloadService.this, DownloadListActivity.class), Intent.FLAG_ACTIVITY_NEW_TASK); |
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doneNotification.setLatestEventInfo(DownloadService.this, title, getString(R.string.notification_done) + pack, contentIntent); |
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nM.notify(pack.getId(), doneNotification); |
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asyncExecutor = null; |
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runNextTask();//see if there are more tasks |
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} |
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} |
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enum TASK_STATE{ |
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RUNNING, FINISHED, PENDING; |
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} |
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} |