Why does Firebase pendingAuthResult return null when the app is killed?

[pesathem]

Step 1: Describe your environment

• Android device: Xiaomi Mi A1
• Android OS version: Android 8.1.0
• Google Play Services version: 4.3.3
• Firebase-core version: 17.2.1
• Firebase-auth version: 19.2.0

Step 2: Describe the problem:

When the app in the background is killed while performing Apple sign-in in Chrome, the authentication behaves inconsistently.

Steps to reproduce:

1. Go to GenericIdpActivity
2. Start the Apple sign-in flow
3. Before finishing the sign-in flow, terminate the app in Android Studio to simulate system killing the app
4. Finish signing in
5. Both auth.currentUser and auth.pendingAuthResult are null in onStart()

Observed Results:

If I then restart the app, I am suddenly signed in and the pending result is present. And it doesn't disappear no matter what I do.

Expected Results:

The pending result shouldn't be null if the app is killed while in the background. That is the whole point of the pending result. Generally, the current behavior when the app is killed seems really inconsistent and buggy.

Related SO question:

https://stackoverflow.com/questions/59718353/why-does-firebase-pendingauthresult-return-null

[pesathem]

Any update on this?

[pesathem]

Hello, will there be an update on this or is it better to post this issue somewhere else?

[samtstern]

@pesathem apologies I should have looked at this sooner. I do not know the answer, @malcolmdeck do you know if the quickstart has a mistake or if maybe there is something going on with the SDK?

[papabeckum007]

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[papabeckum007]

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[papabeckum007]

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[malcolmdeck]

This is being tracked internally in b/157154451

[jemshit]

I am using v19.3.2, behavior i get is: firebaseAuth.pendingAuthResult is null after returning from apple sign-in browser, while "Dont keep activities" is checked.

[lenoch0d]

Same here with v20.0.1, any update on this?

[jemshit]

Any update?