IssueTracker

Hey Doris, any ideas on where this random animation could be coming from?

Re comment #1,

I tried the repro project locally. I was not able to reproduce in the the tip of tree compose code base, after dozens of attempts. It's possible the issue has been fixed recently.

Could you try the latest androidx snapshot here: https://androidx.dev/snapshots/builds and let us know if you still see the issue?

Hi! Thank you for checking into it and giving it a try.

Unfortunately, the issue is still reproducible with snapshot 12123985, 2.8.0-SNAPSHOT for navigation, and 1.8.0-SNAPSHOT for compose.

I've pushed an update containing SNAPSHOT dependencies and automated reproduction attempts: https://github.com/smelfungus/NavHostAnimationIssue

Now, it's sufficient to launch the application and wait.

Here's a new video: https://drive.google.com/file/d/1q3C3ErIzPbTdfLsZH85KgPGNqmL-h1MN/view?usp=sharing

Thanks for the repro in comment #4. I'm able to repro the issue with the project in #4.

Initial investigation showed that the enter/exit transitions are correct. What appears like a scale animation is a size transform. During the repeated destination change, there seems to be a frame where the new content is resolved into an empty list of measurables, which is incorrect.

Unclear what's causing this yet - either the content composable is not yet populated for that frame, or the UI tree applier deferred adding the nodes to the tree to the next frame. More investigation will be needed.