project_files/Android-build/SDL-android-project/src/org/hedgewars/mobile/DownloadService.java
author Xeli
Tue, 05 Jul 2011 18:27:18 +0200
branchhedgeroid
changeset 5397 4ae1b082e4ba
child 5406 a3f98a8a0b80
permissions -rw-r--r--
Added download functionality and changed some icons
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package org.hedgewars.mobile;
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import java.io.File;
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import java.util.ArrayList;
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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.Context;
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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.util.Log;
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import android.widget.RemoteViews;
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import android.widget.Toast;
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public class DownloadService extends Service {
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	private final static String URL = "http://www.xelification.com/tmp/data.zip";
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	public static final int MSG_CANCEL = 0;
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	public static final int MSG_REGISTER_CLIENT = 1;
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	public static final int MSG_UNREGISTER_CLIENT = 2;
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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 downloadTask;
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	private final Messenger messenger = new Messenger(new DownloadHandler());
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	private NotificationManager nM;
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	private RemoteViews contentView;
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	private Notification notification;
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	private ArrayList<Messenger> clientList = new ArrayList<Messenger>();
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	private Message onRegisterMessage = null;
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	class DownloadHandler extends Handler{
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		public void handleMessage(Message msg){
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			switch(msg.what){
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			case MSG_CANCEL:
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				downloadTask.cancel(false);
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				break;
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			case MSG_REGISTER_CLIENT:
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				clientList.add(msg.replyTo);
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				if(onRegisterMessage != null){
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					try {
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						msg.replyTo.send(Message.obtain(onRegisterMessage));
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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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				break;
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			case MSG_UNREGISTER_CLIENT:
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				clientList.remove(msg.replyTo);
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				break;
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			}
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		}
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	}
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	public final static int TASKID_START = 0;
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	public final static int TASKID_CANCEL = 1;
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	public int onStartCommand(Intent intent, int flags, int startId){
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		switch(intent.getIntExtra("taskID", TASKID_START)){
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		case TASKID_START:
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			nM = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
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			notification = new Notification(R.drawable.statusbar, getString(R.string.notification_title), System.currentTimeMillis());
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			//notification.flags |= Notification.FLAG_ONGOING_EVENT;// | Notification.FLAG_NO_CLEAR | Notification.FLAG_FOREGROUND_SERVICE;
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			notification.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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			notification.contentView = contentView;
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			PendingIntent contentIntent = PendingIntent.getActivity(this, 0, new Intent(this, DownloadActivity.class), Intent.FLAG_ACTIVITY_NEW_TASK);
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			notification.contentIntent = contentIntent;
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			//nM.notify(NOTIFICATION_PROCESSING, notification);
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			startForeground(NOTIFICATION_PROCESSING, notification);
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			if(downloadTask == null){
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				downloadTask = new DownloadAsyncTask(this);
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				downloadTask.execute(getDownloadPath(this), URL);
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			}	
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			break;
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		case TASKID_CANCEL:
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			downloadTask.cancel(false);
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			stopService();
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			break;
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		}		
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		return 0;
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	}
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	public void onDestroy(){
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		Log.e("bla", "onDestroy");
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		downloadTask.cancel(false);	
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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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	/*
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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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	 * 
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	 */
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	public void start(int max){
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		onRegisterMessage = Message.obtain(null, DownloadActivity.MSG_START, max, -1);
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		sendMessageToClients(onRegisterMessage);
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	}
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	public void update(int progress, int max, String fileName){
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		progress = (progress/1024);
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		updateNotification(progress, max, fileName);
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		sendMessageToClients(Message.obtain(null, DownloadActivity.MSG_UPDATE, progress, max, fileName));
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	}
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	public void done(boolean succesful){
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		sendMessageToClients(Message.obtain(null, DownloadActivity.MSG_DONE));
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		stopService();//stopService clears all notifications and thus must be called before we show the ready notification
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		showDoneNotification();
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	}
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	private void stopService(){
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		nM.cancelAll();
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		stopForeground(true);
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		stopSelf();
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	}
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	private void updateNotification(int progress, int max, String fileName){
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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, notification);
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	}
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	private void showDoneNotification(){
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		nM.cancelAll();
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		stopForeground(true);
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		String title = getString(R.string.notification_title);
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		notification = new Notification(R.drawable.icon, title, System.currentTimeMillis());
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		notification.flags |= Notification.FLAG_AUTO_CANCEL;
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		PendingIntent contentIntent = PendingIntent.getActivity(this, 0, new Intent(this, MainActivity.class), Intent.FLAG_ACTIVITY_NEW_TASK);
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		notification.setLatestEventInfo(this, title, getString(R.string.notification_done), contentIntent);
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		nM.notify(NOTIFICATION_DONE, notification);
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	}	
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	private void sendMessageToClients(Message msg){
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		for(Messenger m : clientList){
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			try {
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				m.send(Message.obtain(msg));
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			} catch (RemoteException e) {}//TODO should we catch this properly?
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		}
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	}
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	public static String getDownloadPath(Context c){
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		File f =  c.getExternalCacheDir();
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		if(f != null){
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			return f.getAbsolutePath();
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		}else{
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			Toast.makeText(c, R.string.sdcard_not_mounted, Toast.LENGTH_LONG);
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			return null;
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		}
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	}
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}