[Bug]: Screen is not retained after process death

[gyorgygabor]

Is there an existing issue for this?

• I have searched the existing issues

Is there a StackOverflow question about this issue?

• I have searched StackOverflow

What happened?

Steps to reproduce:

1. Open the app
2. Go to Interests -> Accessibility(just an example)
3. Put the app in the background
4. Trigger a process death
5. Reopen the app

Result: The For You screen is opened, instead of the last opened screen(Interests -> Accessibility)

Tested on Samsung S20, demoDebug build.

Relevant logcat output

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[Vivek-2004]

Seems that this is not a bug, rather a normal behaviour of the app.

[vvb2060]

Saved instance state bundles persist through both configuration changes and process death, use saved instance state to store a minimal amount of data necessary, such as an ID, to re-create the data necessary to restore the UI back to its previous state should the other persistence mechanisms fail. Most apps should implement this to handle system-initiated process death.

https://developer.android.com/topic/libraries/architecture/saving-states#onsaveinstancestate

[alexvanyo]

I can't reproduce this with the latest main code. Please re-open if you can still reproduce.

[vvb2060]

@alexvanyo
open the app
scroll the list
switch to other app
exec adb shell am kill com.google.samples.apps.nowinandroid to simulate the system-initiated process death
come back to this app
the scroll position of list is lost

[vvb2060]

Interesting, only the scroll position of for you tab is not saved, the scroll position of other lists is stored normally. I think this is a bug.