How to subscribe to multiple topics in FCM?

Question

Hi everyone i'm newly learning android studio,so however i have one doubt in developing a android app that,How can we subscribe to multiple topics in FCM,Here is my code

public void subscribeToPushService() {
        FirebaseMessaging.getInstance().subscribeToTopic("News");

        Log.d("myname", "Subscribed");
        // Toast.makeText(Simple.this, "Subscribed", Toast.LENGTH_SHORT).show();

        String token = FirebaseInstanceId.getInstance().getToken();

        // Log and toast
        Log.d("myname", token);
        // Toast.makeText(Simple.this, token, Toast.LENGTH_SHORT).show();
    }

you can see in the above code i have already subscribed to one topic "News" so how can i subscribe to multiple topics instead of one. is it possible ,if yes how can we do that.

Thanks in advance

Answer 1

Yes,find below sample code for subscribe multiple topics

public void subscribeToPushService() {
        FirebaseMessaging.getInstance().subscribeToTopic("News");
        FirebaseMessaging.getInstance().subscribeToTopic("Movies");
        FirebaseMessaging.getInstance().subscribeToTopic("etc");
}

For unsubscribe topic

FirebaseMessaging.getInstance().unsubscribeFromTopic("Topic name");