[PlayerView] Shared element transitions not work on 1.4.0

[onlymash]

Version

Media3 1.4.0

More version details

After updating media3 to version 1.4.0, Shared element transitions fail. Specifically, PlayerView does not scale properly on Android 14 and above. The issue does not occur on Android 13. Reverting back to version 1.3.1 resolves the problem.

Devices that reproduce the issue

• OnePlus 12 running Android 15 beta
• Lenovo Legion Tab running Android 14

Devices that do not reproduce the issue

• Lenovo Legion Tab running Android 13

Reproducible in the demo app?

Not tested

Reproduction steps

none

Expected result

none

Actual result

none

Media

example
1.3.1.webm
1.4.0.webm

Bug Report

• You will email the zip file produced by adb bugreport to android-media-github@google.com after filing this issue.

[onlymash]

This may be caused by this commit
30cb762

[icbaker]

This may be caused by this commit
30cb762

That commit shouldn't affect Android 15 (SDK_INT == 35), because all the logic is gated by a SDK_INT == 34 check, but you said that Android 15 did reproduce the issue. Please can you check that repro case again, and confirm the value of Build.VERSION.SDK_INT that you see?

If you are able to build locally and revert that change on top of 1.4.0 to confirm it as the culprit, that would also be very helpful.

[onlymash]

This may be caused by this commit
30cb762

That commit shouldn't affect Android 15 (SDK_INT == 35), because all the logic is gated by a SDK_INT == 34 check, but you said that Android 15 did reproduce the issue. Please can you check that repro case again, and confirm the value of Build.VERSION.SDK_INT that you see?

If you are able to build locally and revert that change on top of 1.4.0 to confirm it as the culprit, that would also be very helpful.

OnePlus 12's A15 beta is an early version, and the SDK_INT is still 34

[onlymash]

This may be caused by this commit
30cb762

That commit shouldn't affect Android 15 (SDK_INT == 35), because all the logic is gated by a SDK_INT == 34 check, but you said that Android 15 did reproduce the issue. Please can you check that repro case again, and confirm the value of Build.VERSION.SDK_INT that you see?

If you are able to build locally and revert that change on top of 1.4.0 to confirm it as the culprit, that would also be very helpful.

I reverted this commit and build it locally, and I can confirm that this commit caused it.

[icbaker]

Thank for you for confirming.

Are you able to explain your repro set-up in more detail? You mention 'shared element transitions' - is that referring to this Compose feature? https://developer.android.com/develop/ui/compose/animation/shared-elements

If you have a code snippet describing how your UI is wired together, or even a minimal reproducible example that demonstrates the problem in a way that we can build locally, that would be really helpful.

The easiest way to do this is probably to fork this project and make changes in one of the demo apps, then link us to the fork.

Alternatively it could be an Android Studio project zipped up and sent to android-media-github@google.com with the subject "Issue #1594". If emailing please also update this issue to indicate you’ve done this.