title: Notification won't Vibrate
body: <p>I'm writing a simple Notification demo in Android Studio where there's a button in the main activity and when you click it, a notification comes up which leads to another activity on click. I setVibrate on the notification obj but there's no vibrate. Not sure if the pattern is off or not. </p>
  
  <pre><code>NotificationCompat.Builder notification;
  private static final int id = 123;
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
  
      notification = new NotificationCompat.Builder(this);
      notification.setAutoCancel(true);
  
  }
  
  
  public void notificationMethod(View v){
  
      notification.setSmallIcon(R.mipmap.ic_launcher);
      notification.setTicker("this is ticker");
      notification.setWhen(System.currentTimeMillis());
      notification.setContentTitle("This is the Title");
      notification.setContentText("This is the Text");
      notification.setVibrate(new long[]{1000,1000,1000,1000,1000} );
  
  
      Intent intent = new Intent(this, NotificationActivity.class);
      PendingIntent pintent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_CANCEL_CURRENT);
      notification.setContentIntent(pintent);
  
      NotificationManager nm = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
      nm.notify(id, notification.build());
  
  }
  </code></pre>