Accessibility bug: cannot scroll through timeline

[IanGClifton]

Accessibility focus does not allow navigating through the timeline correctly. If an image is displaying (e.g., the sheep reply), swiping right does not move away from the Timeline text image. Swiping right rapidly twice can sometimes move the focus to the animal name and swiping right again will scroll to the next item, but focus is moved to the Timeline text image again.

[calren]

@SigmanZero I can take a stab at looking at this one if you haven't started already.

[calren]

After some exploration and experimentation:

1. The content of item in the timeline should be grouped together: .semantics(mergeDescendants = true) {}
2. Using layout inspector, It seems like navigation isn't working correctly because the top app bar is laid out after the timeline contents.

[calren]

This only happens if there is more than 1 media item in the timeline. If there is only one picture in the timeline, TalkBack navigation works fine.

[calren]

possibly related? https://issuetracker.google.com/333670357

I'm not sure if this is a bug specific to this app anymore, so next step is to try and re-create in a new app and see if issue persists.