Implement Android and press exit program code again

 

Private long exittime = 0;
	
/**
 * Capture Return Event button
 * 
 * For this activity to inherit tabactivity with OnKeyDown no response, so instead
 of dispatchkeyevent * General activity Onke Ydown on it.
 * *

@Override public
boolean dispatchkeyevent (KeyEvent event) {
  if (event.getkeycode () = = Keyevent.keycode_back) {
    if (event.getaction () = = Keyevent.action_down && event.getrepeatcount () = 0) { C13/>this.exitapp ();
    }
    return true;
  }
  Return Super.dispatchkeyevent (event);
}

/**
 * Exit program
 /
private void Exitapp () {
  //Judge 2 Click event Time
  if (System.currenttimemillis ()- Exittime) >) {
    toast.maketext (mainactivity.this, "Click again to exit the program", Toast.length_short). Show ();
    Exittime = System.currenttimemillis ();
  } else {
    finish ();
  }
}