writing a time out event for android

Question

hey, i have a small issue i can't figure out. for my program, i basically want to execute some code if the user hasn't done anything with the application for 5 minutes (say log out).

how can i go about doing this? i'm lost on detecting that the user has done nothing, and then reset the count once the user has touched the tablet or something. can somebody give me some pointers?

thanks in advance!

Answer 1

So if you are having single Activity in your app then you create a Timer and TimerTask to achieve this. And can track touch and key events.So in your activity you can do something like this.

Timer longTimer;
synchronized void setupLongTimeout(long timeout) {
  if(longTimer != null) {
    longTimer.cancel();
    longTimer = null;
  }
  if(longTimer == null) {
    Timer longTimer = new Timer();
    longTimer.schedule(new TimerTask() {
      public void run() {
        longTimer.cancel();
        longTimer = null;
        //do your stuff, i.e. finishing activity etc.
      }
    }, 300000 /*delay in milliseconds i.e. 5 min = 300000 ms or use timeout argument*/);
  }
}
@override
public boolean onTouchEvent(MotionEvent me) {
  setupLongTimeout(300000);
  return super.onTouchEvent(me);
}
@override
public boolean onKeyUp(int keyCode, KeyEvent ke) {
  setupLongTimeout(300000);
  return super.onKeyUp(keyCode, ke);
}

If you are handling any key/touch events for any of the views then you need to return false so that event comes to the activity.