[firebase_messaging]: Cloud Messaging: flutter firebase background notification not working for iOS (Callbacks not triggering)

[petrnymsa]

Is there an existing issue for this?

• I have searched the existing issues.

Which plugins are affected?

No response

Which platforms are affected?

No response

Description

Reopening issue #16878 which was closed by stale bot.

This issue persists.

Reproducing the issue

See #16878

Firebase Core version

3.10.1

Flutter Version

3.27.0

Relevant Log Output

Flutter dependencies

Expand Flutter dependencies snippet

Replace this line with the contents of your `flutter pub deps -- --style=compact`.

Additional context and comments

No response

[kirya355]

I am also facing same issue on last firebase_messaging example. With Flutter 3.29.2
https://github.com/firebase/flutterfire/tree/750e9c20dab1671029cb740c5fa505ac813c6edd/packages/firebase_messaging/firebase_messaging

[ndelanou]

This is a big deal 🚨
We are now unable to receive notifications on iOS since our notification system is based on data-only push notifications. Nothing goes through.

[dragongesa]

This is a big deal 🚨 We are now unable to receive notifications on iOS since our notification system is based on data-only push notifications. Nothing goes through.

Did you manage to show notifications when the app terminated on iOS before? How to do that? because FCM documentation says it's not possible to show notifications when the app is terminated in iOS. @ndelanou

---

For this issue, I still receive the background notification (not terminated), but then since evening I haven't received it anymore... it seems the bug is fresh.

[SelaseKay]

Hi @petrnymsa, thanks for the report! I couldn't reproduce the issue on my end. Could you provide detailed steps to help replicate it?

[petrnymsa]

They are still same as in original issue. Issue was closed just because of "stale bot" which does not make sense to push community keep "issue" updated.

Issue persists and I am not only one.

Firebase packages are updated. Real device or iOS simulator - behavior is same. background handler or event onMessageOpenedApp are not fired at all. (By the way started to see same behaviour for Android devices too)

[SelaseKay]

I couldn't reproduce this behaviour with the firebase_messaging example app. Could you run the example app with your firebase credentials to see if it's still reproducible?