Rendering issues on Android with Rive native when resizing animation

[dario-digregorio]

Description

I am using the latest rive prerelease 0.14.0-dev.8 and I am experiencing a rendering issue when resizing a RiveWidget on Android. When ever the animation is getting resized it disappears and reappears without throwing an error. On iOS it is working as expected. I attached a video showing the issue. If needed I can provide a reproducible repo and the riv file in a private message.

Expected behavior

Should be showing the Rive animation without disappearing.

Screenshots

Clipboard-20250924-131835-880.mp4

Device & Versions (please complete the following information)

• Device: On all Android devices. Emulator and real device. Both debug and release.
• OS: Tested in Emulator Android API 35 and real device with Android 16.
• Flutter Version: 3.35.4
  e.g.:

Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 3.35.4, on macOS 15.6.1 24G90 darwin-arm64, locale en-US)
[✓] Android toolchain - develop for Android devices (Android SDK version 36.0.0)
[✓] Xcode - develop for iOS and macOS (Xcode 16.4)
[✓] Chrome - develop for the web
[✓] Android Studio (version 2025.1)
[✓] Connected device (3 available)

[HayesGordon]

Thanks for the report. If you're able to provide a reproduction, that would be really helpful. It can also be any .riv file if it reproduces regardless of the file.

Something you can also consider using is the newly added RivePanel. This is a shared texture that multiple widgets can draw to. For your use case, you can instead create the RivePanel to be the maximum size of the view (or area that you want to draw to), and then continue resizing the RiveWidget as normal, making sure that RiveWidget draws to the RivePanel.

Then we won't be recreating the texture each time you resize, and instead draw to a fixed texture. See these docs:

• https://rive.app/docs/runtimes/flutter/flutter#using-rivepanel
• https://rive.app/docs/runtimes/flutter/flutter#rivepanel

I am currently working on other refactors regarding the texture creation and resizing logic. So this may already be fixed in an upcoming release, but if you can provide the reproduction we can take a look.

[dario-digregorio]

Thanks for the suggestions! I will try it out.

But I think it is a bug because I don't have this issue on iOS. I created a reproducible repo. There you can find the riv and rev file.
https://github.com/dario-digregorio/rive_render_bug

[dario-digregorio]

I also tried using RivePanel but the RiveWidget does not get rendered anymore and I don't get any errors. I followed the docs and tried it in my reproducible repo and have the same issue.