I'm making this topic to see if anyone has experienced issues like I have, or if anyone has any tips.

So, long story short, I'm working on an app that has time sensitive content, and that content relies heavily on push notifications. The ideal scenario would look like:

• Notification comes in

• X time passes

• Silent notification comes in with an identifier and the system deletes the first notification that came in, since that is no longer relevant.

I use FirebaseMessaging for notifications.

Currently I have a solution using flutter_local_notifications and it will delete the notification with

flutterLocalNotificationsPlugin
        .cancel(int.parse(message.data["deletion_id"]));

This works perfectly on Android, however on iOS the backgroundHandler:

_firebaseMessagingBackgroundHandler does not appear to be called at all.

I have added the necessary background modes, and I have followed the documentation exactly to the letter.

Anyone has managed to delete notifications? Any tips you are able to share?

Thanks!