[iOS][KeyboardAvoidingView] Using KeyboardAvoidingView inside a ScrollView causes the app the crash when focusing an input
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Description
Description
When KeyboardAvoidingView inside a ScrollView and focus a TextInput the app crashes (goes extremely slow).
This seems to only happen if the KeyboardAvoidingView needs to trigger the animation, if the ScrollView is small it works fine.
Testing with react native 0.72.9 the issue doesn't seem to happen
Steps to reproduce
- install the app
yarn ios - Using the simulator make sure the keyboard shows when entering a text input
- Focus a text input and start typing on the keyboard
- Dismiss the keyboard / click outside of the input
- You will notice the app has now hung
React Native Version
0.73.4
Affected Platforms
Runtime - iOS
Output of npx react-native info
System:
OS: macOS 14.2.1
CPU: (10) arm64 Apple M1 Max
Memory: 127.84 MB / 32.00 GB
Shell:
version: "5.9"
path: /bin/zsh
Binaries:
Node:
version: 18.18.2
path: ~/.nvm/versions/node/v18.18.2/bin/node
Yarn:
version: 1.22.21
path: ~/.nvm/versions/node/v18.18.2/bin/yarn
npm:
version: 9.8.1
path: ~/.nvm/versions/node/v18.18.2/bin/npm
Watchman: Not Found
Managers:
CocoaPods:
version: 1.14.3
path: /usr/local/bin/pod
SDKs:
iOS SDK:
Platforms:
- DriverKit 23.2
- iOS 17.2
- macOS 14.2
- tvOS 17.2
- visionOS 1.0
- watchOS 10.2
Android SDK: Not Found
IDEs:
Android Studio: 2021.1 AI-211.7628.21.2111.8309675
Xcode:
version: 15.2/15C500b
path: /usr/bin/xcodebuild
Languages:
Java:
version: 17.0.9
path: /usr/bin/javac
Ruby:
version: 2.6.10
path: /usr/bin/ruby
npmPackages:
"@react-native-community/cli": Not Found
react:
installed: 18.2.0
wanted: 18.2.0
react-native:
installed: 0.73.4
wanted: 0.73.4
react-native-macos: Not Found
npmGlobalPackages:
"*react-native*": Not Found
Android:
hermesEnabled: true
newArchEnabled: false
iOS:
hermesEnabled: true
newArchEnabled: false
### Stacktrace or Logs
```text
Excessive number of pending callbacks: 501. Some pending callbacks that might have leaked by never being called from native code: {"235":{"module":"UIManager","method":"configureNextLayoutAnimation"},"238":{"module":"UIManager","method":"configureNextLayoutAnimation"},"241":{"module":"UIManager","method":"configureNextLayoutAnimation"},"244":{"module":"UIManager","method":"configureNextLayoutAnimation"},"247":{"module":"UIManager","method":"configureNextLayoutAnimation"},"250":{"module":"UIManager","method":"configureNextLayoutAnimation"},"253":{"module":"UIManager","method":"configureNextLayoutAnimation"},"256":{"module":"UIManager","method":"configureNextLayoutAnimation"},"259":{"module":"UIManager","method":"configureNextLayoutAnimation"},"262":{"module":"UIManager","method":"configureNextLayoutAnimation"},"265":{"module":"UIManager","method":"configureNextLayoutAnimation"},"268":{"module":"UIManager","method":"configureNextLayoutAnimation"},"271":{"module":"UIManager","method":"configureNextLayoutAnimation"},"274":{"module":"UIManager","method":"configureNextLayoutAnimation"},"277":{"module":"UIManager","method":"configureNextLayoutAnimation"},"280":{"module":"UIManager","method":"configureNextLayoutAnimation"},"283":{"module":"UIManager","method":"configureNextLayoutAnimation"},"286":{"module":"UIManager","method":"configureNextLayoutAnimation"},"289":{"module":"UIManager","method":"configureNextLayoutAnimation"},"292":{"module":"UIManager","method":"configureNextLayoutAnimation"},"295":{"module":"UIManager","method":"configureNextLayoutAnimation"},"298":{"module":"UIManager","method":"configureNextLayoutAnimation"},"301":{"module":"UIManager","method":"configureNextLayoutAnimation"},"304":{"module":"UIManager","method":"configureNextLayoutAnimation"},"307":{"module":"UIManager","method":"configureNextLayoutAnimation"},"310":{"module":"UIManager","method":"configureNextLayoutAnimation"},"313":{"module":"UIManager","method":"configureNextLayoutAnimation"},"316":{"module":"UIManager","method":"configureNextLayoutAnimation"},"319":{"module":"UIManager","method":"configureNextLayoutAnimation"},"322":{"module":"UIManager","method":"configureNextLayoutAnimation"},"325":{"module":"UIManager","method":"configureNextLayoutAnimation"},"328":{"module":"UIManager","method":"configureNextLayoutAnimation"},"331":{"module":"UIManager","method":"configureNextLayoutAnimation"},"334":{"module":"UIManager","method":"configureNextLayoutAnimation"},"337":{"module":"UIManager","method":"configureNextLayoutAnimation"},"340":{"module":"UIManager","method":"configureNextLayoutAnimation"},"343":{"module":"UIManager","method":"configureNextLayoutAnimation"},"346":{"module":"UIManager","method":"configureNextLayoutAnimation"},"349":{"module":"UIManager","method":"configureNextLayoutAnimation"},"352":{"module":"UIManager","method":"configureNextLayoutAnimation"},"355":{"module":"UIManager","method":"configureNextLayoutAnimation"},"358":{"module":"UIManager","method":"configureNextLayoutAnimation"},"361":{"module":"UIManager","method":"configureNextLayoutAnimation"},"364":{"module":"UIManager","method":"configureNextLayoutAnimation"},"367":{"module":"UIManager","method":"configureNextLayoutAnimation"},"370":{"module":"UIManager","method":"configureNextLayoutAnimation"},"373":{"module":"UIManager","method":"configureNextLayoutAnimation"},"376":{"module":"UIManager","method":"configureNextLayoutAnimation"},"379":{"module":"UIManager","method":"configureNextLayoutAnimation"},"382":{"module":"UIManager","method":"configureNextLayoutAnimation"},"...(truncated keys)...":451}
### Reproducer
https://github.com/slauzinho/KeyboardAvoidingViewExample
### Screenshots and Videos
https://github.com/facebook/react-native/assets/445345/72aa333e-f55a-446f-aea5-6b7615b8a4ca
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the linked KeyboardAvoidingViewExample reproducer and reproduce the hang on iOS with React Native 0.73.4, using a KeyboardAvoidingView inside a ScrollView. Inspect the KeyboardAvoidingView and ScrollView interaction around the repeated UIManager.configureNextLayoutAnimation callbacks, and compare the behavior with React Native 0.72.9. Done means dismissing the keyboard no longer hangs the app or accumulates pending callbacks.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- react-native
- Domain
- mobile
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 42/100