SharedPreferences sp = getSharedPreferences("notifications",MODE_PRIVATE);
            getAudioNotif = sp.getBoolean("audio_notif_get",false);
            getVideoNotif = sp.getBoolean("video_notif_get",false);
            getEventNotif = sp.getBoolean("event_notif_get",false);

            if (getAudioNotif) {
                FirebaseMessaging.getInstance().subscribeToTopic("Notifications_For_Audio_Items");
            } else if (!getAudioNotif) {
                FirebaseMessaging.getInstance().unsubscribeFromTopic("Notifications_For_Audio_Items");
            }
            else if(getVideoNotif) {
                FirebaseMessaging.getInstance().subscribeToTopic("Notifications_For_Video_Items");
            }
            else if(!getVideoNotif) {
                FirebaseMessaging.getInstance().unsubscribeFromTopic("Notifications_For_Video_Items");
            }
            else if(getEventNotif) {
                FirebaseMessaging.getInstance().subscribeToTopic("Notifications_For_Event_Items");
            }
            else if(!getEventNotif) {
                FirebaseMessaging.getInstance().unsubscribeFromTopic("Notifications_For_Event_Items");
            }