Disable vibration for a notification

You have 2 solutions with the notification channel.

1. Set a "fake" pattern to disable the vibration.
2. Set Importance flag, but less flexible (see https://developer.android.com/training/notify-user/channels#importance). Takes care, it will also impact some other stuff like priority...

As a result, you can use

NotificationChannel channel = new NotificationChannel(channelId, channelName, importance);
            // no vibration
            channel.setVibrationPattern(new long[]{ 0 });
            channel.enableVibration(true);

Or

 int importance = NotificationManager.IMPORTANCE_LOW;
            NotificationChannel channel = new NotificationChannel(channelId, channelName, importance);
        

After a long trial & error session, I think I finally understood what's wrong.

The problem lies in this instruction notificationBuilder.setDefaults(Notification.DEFAULT_ALL).

No matter what parameter you pass to notificationBuilder.setVibrate() after setting DEFAULT_ALL or DEFAULT_VIBRATE will be silently discarded. Someone at Google must have decided to give a higher precedence to setDefaults than to setVibrate.

This is how I ended up disabling vibration for notifications in my app:

notificationBuilder.setDefaults(Notification.DEFAULT_LIGHT | Notification.DEFAULT_SOUND)
                   .setVibrate(new long[]{0L}); // Passing null here silently fails

This works but doesn't feel right to initialize a new long[] just to disable the vibration.

They are not stop because you are use "setDefaults(Notification.DEFAULT_ALL)" so if you need to stop vibration and sound remove this line , or if you need to use the default sound and stop vibration I think you must use setDefaults(Notification.DEFAULT_SOUND) etc ...

In the year 2020:

Setting the importance of the notification channel to NotificationManager.IMPORTANCE_NONE worked for me.