alarm

public void restart(int delay) {
    Intent launchIntent = new Intent(context, YourStartUpActivity.class);
    PendingIntent intent = PendingIntent.getActivity(getApplicationContext(), 0, launchIntent , 0);
    AlarmManager manager = (AlarmManager) this.getSystemService(Context.ALARM_SERVICE);
    manager.set(AlarmManager.RTC, System.currentTimeMillis() + delay, intent);
    System.exit(2);
}