react-native: [New Architecture] LayoutAnimation Breaking

Description

After migrating to new architecture, the animation configured with LayoutAnimation are behaving differently, we can observe a kind of jerk in the animation. Attached the videos and repo for reproduction of the issue.

Also check in slow motion with simulator, eventually the views are not adopting the slow animation and breaking.

React Native Version

0.72.3

Output of `npx react-native info`

System: OS: macOS 13.4.1 CPU: (12) arm64 Apple M2 Pro Memory: 312.44 MB / 32.00 GB Shell: version: “5.9” path: /bin/zsh Binaries: Node: version: 16.20.0 path: /usr/local/bin/node Yarn: version: 1.22.19 path: /opt/homebrew/bin/yarn npm: version: 8.19.4 path: /usr/local/bin/npm Watchman: version: 2023.06.26.00 path: /opt/homebrew/bin/watchman Managers: CocoaPods: version: 1.12.1 path: /Users/ravindragupta/.rbenv/shims/pod SDKs: iOS SDK: Platforms: - DriverKit 22.4 - iOS 16.4 - macOS 13.3 - tvOS 16.4 - watchOS 9.4 Android SDK: Not Found IDEs: Android Studio: 2022.2 AI-222.4459.24.2221.10121639 Xcode: version: 14.3.1/14E300c path: /usr/bin/xcodebuild Languages: Java: version: 11.0.19 path: /usr/bin/javac Ruby: version: 3.0.4 path: /Users/ravindragupta/.rbenv/shims/ruby npmPackages: “@react-native-community/cli”: Not Found react: installed: 18.2.0 wanted: ^18.2.0 react-native: installed: 0.72.3 wanted: 0.72.3 react-native-macos: Not Found npmGlobalPackages: “react-native”: Not Found Android: hermesEnabled: false newArchEnabled: true iOS: hermesEnabled: false newArchEnabled: true

Steps to reproduce

Use LayoutAnimation with New Architecture (Fabric) and observe issues with animation.

Snack, code example, screenshot, or link to a repository

Reproducible Demo App: https://github.com/ravindraguptacapgemini/reproducer-react-native-maps-events/tree/layout-animation-issue

Videos and Screenshot:

https://github.com/facebook/react-native/assets/97147467/d9e66cc5-0fd5-4881-91d9-dd9b684aba97

https://github.com/facebook/react-native/assets/97147467/b5b752b5-7d02-412d-a61d-7a8a82e6dbd2

About this issue

Original URL
State: open
Created a year ago
Reactions: 2
Comments: 15 (6 by maintainers)

Most upvoted comments

from the video it looks like the animation is not working at all and it only shows first and last frame.

Debug -> Slow Animation unfortunately won’t work out of the box. The trouble is, the animation is not driven by CoreAnimation framework on iOS. The New Architecture has a cross-platform implementation and does not use animation primitives that host platforms offer.

sammy-SC on Aug 7, 2023