facebook
iOS only: `onChangeText` of `TextInput` is fired with text longer than `maxLength`
Description
We noticed that sometimes the onChangeText event of TextInput was fired with text longer than maxLength. According to the doc, this behaviour seems to be unexpected.
maxLength: Limits the maximum number of characters that can be entered.
This happens only on iOS relating to autocompletion.
Steps to reproduce
Here is a snack link to reproduce the issue: https://snack.expo.dev/@yupeng_li/textinput
It contains only a TextInput component and maxLength is set to 3. If you type in bef and let the autocomplete suggestion come up, you will see an alert triggered by onChangeText when text is longer the maxLength.
In the screenshot below, the text returned is "Before", and the text displayed in the input is "ore".
React Native Version
0.71.14
Affected Platforms
Runtime - iOS
Output of npx react-native info
info Fetching system and libraries information...
System:
OS: macOS 14.1.2
CPU: (10) arm64 Apple M1 Pro
Memory: 81.80 MB / 32.00 GB
Shell: 5.9 - /bin/zsh
Binaries:
Node: 18.17.0 - ~/Library/Caches/fnm_multishells/24849_1670237417415/bin/node
Yarn: 1.22.19 - /usr/local/bin/yarn
npm: 9.6.7 - ~/Library/Caches/fnm_multishells/24849_1670237417415/bin/npm
Watchman: 2023.10.09.00 - /opt/homebrew/bin/watchman
Managers:
CocoaPods: Not Found
SDKs:
iOS SDK:
Platforms: DriverKit 23.0, iOS 17.0, macOS 14.0, tvOS 17.0, watchOS 10.0
Android SDK: Not Found
IDEs:
Android Studio: 2022.3 AI-223.8836.35.2231.10671973
Xcode: 15.0.1/15A507 - /usr/bin/xcodebuild
Languages:
Java: 11.0.19 - /Users/yupeng/.sdkman/candidates/java/11.0.19-tem/bin/javac
npmPackages:
@react-native-community/cli: Not Found
react: 18.2.0 => 18.2.0
react-native: 0.71.14 => 0.71.14
react-native-macos: Not Found
npmGlobalPackages:
*react-native*: Not Found
info React Native v0.73.0 is now available (your project is running on v0.71.14).
info Changelog: https://github.com/facebook/react-native/releases/tag/v0.73.0
info Diff: https://react-native-community.github.io/upgrade-helper/?from=0.71.14
info For more info, check out "https://reactnative.dev/docs/upgrading".
Stacktrace or Logs
No stacktrace
Reproducer
https://snack.expo.dev/@yupeng_li/textinput
Screenshots and Videos
No response
I cannot seem to reproduce this issue with the snack you've provided. Please check the video attached:
https://github.com/facebook/react-native/assets/1658237/a4d667b4-466c-43a7-8fde-af6d8311d2a4
Could you collect more information on if this is an issue only for specific RN/iOS versions?
I cannot seem to reproduce this issue with the snack you've provided. Please check the video attached:
working_ios.mov Could you collect more information on if this is an issue only for specific RN/iOS versions?
When pasting text in the "TextInput" or selecting a suggestion with length greater than 3
