Firebase Analytics: screen_view for MainActivity triggered on app foreground after upgrading FlutterFire and Firebase Android BoM

[anhtuan9202]

Describe the problem

After upgrading our FlutterFire dependencies and Firebase Android BoM, we observed a change in Firebase Analytics automatic screen tracking behavior.

When the app returns from background → foreground, a screen_view event for MainActivity is now triggered automatically.

This behavior did not occur in the previous versions, where returning to foreground only produced a user_engagement event and no additional screen_view.

We would like to confirm whether this behavior change is expected due to updates in Firebase Analytics or the underlying Measurement SDK.

Dependency changes
FlutterFire (before)
firebase_core: 3.10.1
firebase_analytics: 11.4.1
firebase_crashlytics: 4.3.1
FlutterFire (after upgrade)
firebase_core: 4.3.0
firebase_analytics: 12.1.0
firebase_crashlytics: 5.0.6

Android Firebase BoM
Before
implementation platform("com.google.firebase:firebase-bom:32.7.2")
After upgrade
implementation platform("com.google.firebase:firebase-bom:34.7.0")
Environment

Flutter version

Flutter 3.38.6

Steps to reproduce

1. Launch the app

2. MainActivity is opened

3. Press Home button → app goes to background

4. Reopen the app from launcher or recent apps

5. Observe events in Firebase

Question

Was there any change in automatic screen tracking behavior in recent Firebase Analytics versions that causes screen_view to be triggered when the app returns from background?

Is this the intended behavior, or a side effect of updates in the Firebase Analytics / Measurement SDK?