using the vibrate(long[] pattern, int repeat)
Vibrator vibrator = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
// Start time delay
// Vibrate for 500 milliseconds
// Sleep for 1000 milliseconds
long[] pattern = {0, 500, 1000};
// 0 meaning is repeat indefinitely
vibrator.vibrate(pattern, 0);