Implementing a timer in Android that is active all the time (even during screen timeout)

Question

I implemented a service in my Android application that starts a timer (using the standard mechanism java.util.Timer and java.util.TimerTask) to do some processing in the background at a predetermined interval.

public class BackgroundProcessingService extends Service {

private int interval;
private Timer timer = new Timer();

public void onCreate() {
    super.onCreate();
    startTimer();
}

@Override
public void onDestroy() {
    timer.cancel();
    super.onDestroy();
}

public int getInterval() {
    return interval;
}

public void setInterval(int interval) {
    this.interval = interval;
}

private void startTimer() {

    timer.scheduleAtFixedRate( new TimerTask() {

        public void run() {
            // perform background processing        
        }

    }, 0, getInterval());

    ; }

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

}

The service starts / stops by my application as follows.

backgroundProcessingService = new Intent(getApplicationContext(), BackgroundProcessingService .class);

startService(backgroundProcessingService);

While the phone is active (there was no screen timeout), the service works fine, and the timer performs its task at the specified interval. Even when I exit the application (using the back button), the timer remains active.

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Answer 1

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Answer 2

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