Save data in Shared Preferences when Message Received in FCM

Question

I just want to know if it's really possible to save data when onMessageReceived is triggered. I want to show a notification badge inside my application to show how much notifications he received when the app was closed. The code I made is not working, I am receiving the notifications when my app is closed but I am unable to save an integer in sharedPreferences. Is it maybe because of the context? I'm not really sure, every answer is appreciated thanks!

class FirebaseMessagingServiceClass : FirebaseMessagingService(){
    override fun onMessageReceived(remoteMessage: RemoteMessage) {
        super.onMessageReceived(remoteMessage)

        if (remoteMessage.notification != null){
            val title = remoteMessage.notification?.title
            val body = remoteMessage.notification?.body

            val prefs = PreferenceManager.getDefaultSharedPreferences(applicationContext)
            val notificationBadgeCount = prefs.getInt("notification_badge_count", 0)

            val prefsEditor = prefs?.edit()
            prefsEditor?.putInt("notification_badge_count", notificationBadgeCount + 1)
            prefsEditor?.apply()

            NotificationHelper.displayNotification(applicationContext, "Status Channel", 1010, title!!, body!!)
        }
    }
}

`onMessageReceived` function won't be called if your apps is in the background. Learn more here. https://stackoverflow.com/questions/37358462/firebase-onmessagereceived-not-called-when-app-in-background — Franz Andel, Jul 16 '20 at 12:09
@FranzAndel Thank you for your reply sir! You're right, looks like I have to revise the question. — CoconutShark, Jul 17 '20 at 03:36
@EvansChepsiror No sir, I'm not getting any exceptions. Thank you for your reply! — CoconutShark, Jul 17 '20 at 03:37

Save data in Shared Preferences when Message Received in FCM

0 Answers0