Question

I am having a weird situation where a Service that is created is stopping – sometimes. I have a entry Activity A that starts a service using bindService

// if we now have an IP address then bind ourselves to the MessageService
bindService(new Intent(this, MessagingService.class), 
            onMessageService,
            BIND_AUTO_CREATE);

The MessageService handles kicking of Read and Send threads to handle message traffic with the app. It basically handles polling for new messages at 1 second intervals using a StatusTask and it’s timer using timer.scheduleAtFixedRate.

Activity A then kicks off another Activity B that displays info to the user. For some reason that I yet to figure out, most of the time when I press the home button, the polling stops and the Service seems to have stopped. Reslecting my app from the Home recent apps list or via a notification I post when not visible brings the Activity to the foreground, but the Service seems to be gone. Making this harder to debug, about 10-20% of the time everything works great and the Message Polling service keeps plugging away.

Should I be using startService instead? The only direct relationship that the second Activity B has with the Service is that registers itself as an observer of the Read thread in order to be notified about timeouts on Reads. I am not calling stopService anywhere in my code.

Answer 1

public class Testservice extends Service {

private static final String TAG = Testservice.class.getSimpleName();

public Timer timer;
TimerTask scanTask;
final Handler handler = new Handler();
Timer t = new Timer();

@Override
public IBinder onBind(Intent intent) {
    return null;

}

@Override
public void onCreate() {
    super.onCreate();
    Log.i(TAG, "Service creating");
    _startService();
}

@Override
public void onDestroy() {
    super.onDestroy();
    Log.i(TAG, "Service destroying");

    t.cancel();
    t = null;
}

public void yourfunction()
{

}

//this will invoke the function on everysecond basis so try it if it helpsa
public void _startService(){

    scanTask = new TimerTask() { 
            public void run() { 

                    handler.post(new Runnable() { 
                            public void run() { 

                                yourfunction();

                            } 
                   }); 
            }}; 

            t.schedule(scanTask, 1000L, 1000L);  
}