[Android] Layout animations enabled by default on android

Description

Layout Animations are enabled by default on Android. The react-native doc says they are experimental on this platform:

https://reactnative.dev/docs/layoutanimation

I use layout animations on my app on iOS only and having them enabled on android breaks multiple parts of the app. Is it safe to just disable them again by calling the following code?

if (Platform.OS === 'android') {
  if (UIManager.setLayoutAnimationEnabledExperimental) {
    UIManager.setLayoutAnimationEnabledExperimental(false);
  }
}

Here’s the line that enables them:

https://github.com/software-mansion/react-native-reanimated/blob/e52d733ab9f0fc33e52c54c8d7adbfe86a2608ac/android/src/main/java/com/swmansion/reanimated/layoutReanimation/ReanimatedNativeHierarchyManager.java#L259

Steps to reproduce

Just install react-native-reanimated, launch an app ( you can use the example ).

Snack or a link to a repository

https://github.com/software-mansion/react-native-reanimated/tree/main/Example

Reanimated version

2.9.0

React Native version

0.67.4

Platforms

Android

JavaScript runtime

Hermes

Workflow

No response

Architecture

No response

Build type

No response

Device

No response

Device model

No response

Acknowledgements

Yes

[hirbod]

Kinda weird, but try this

import { enableLayoutAnimations } from 'react-native-reanimated';

enableLayoutAnimations(false);

[maxencehenneron]

I know these are completely different. This is what I’m saying. react-native-reanimated is enabling react-native’s layout animation which I believe should not happen, hence, I created this issue.

If you put a breakpoint inside react-native’s code to enable react-native’s implementation of layout animations, you can clearly see that it is being enabled by react-native-reanimated. It should not.