Android background notifications vibration

Question

I think like I searched whole internet at this point and time my question is: Is it even possible to make android phone vibrate on firebase notification? I tried everything but I was only able to make it vibrate in foreground.

class MyFirebaseMessagingService : FirebaseMessagingService() {
override fun onMessageReceived(remoteMessage: RemoteMessage) {
    val vibrator = getSystemService(Context.VIBRATOR_SERVICE) as Vibrator
    vibrator.vibrate(1000)
}

}

This is piece of code that I ended up with. Super simple but working

Answer 1

please confirm you have add vibrate permission on manifest file or not

<uses-permission android:name="android.permission.VIBRATE"/>