[iOS] Toggling `secureTextEntry` prop causes cursor to jump to the end of TextInput
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Description
Description
In iOS, when the secureTextEntry prop is toggled while the TextInput is focused, the cursor position always jumps to the end of the input no matter what the previous position was.
React Native Version
0.71.2
Output of npx react-native info
System:
OS: macOS 13.4.1
CPU: (10) arm64 Apple M1 Pro
Memory: 89.78 MB / 32.00 GB
Shell: 5.9 - /bin/zsh
Binaries:
Node: 16.15.1 - ~/.nvm/versions/node/v16.15.1/bin/node
Yarn: 1.22.15 - ~/.nvm/versions/node/v16.15.1/bin/yarn
npm: 8.11.0 - ~/.nvm/versions/node/v16.15.1/bin/npm
Watchman: Not Found
Managers:
CocoaPods: Not Found
SDKs:
iOS SDK:
Platforms: DriverKit 22.4, iOS 16.4, macOS 13.3, tvOS 16.4, watchOS 9.4
Android SDK:
API Levels: 28, 29, 30, 31, 32, 33
Build Tools: 28.0.3, 30.0.3, 33.0.0
System Images: android-31 | Android TV ARM 64 v8a, android-31 | Google APIs ARM 64 v8a, android-32 | Google Play ARM 64 v8a, android-33 | Google APIs ARM 64 v8a
Android NDK: 21.3.6528147
IDEs:
Android Studio: 2022.1 AI-221.6008.13.2211.9514443
Xcode: 14.3.1/14E300c - /usr/bin/xcodebuild
Languages:
Java: 17.0.8 - /usr/bin/javac
npmPackages:
@expensify/react-native: 0.71.2-alpha.3
@react-native-community/cli: Not Found
react: 18.2.0 => 18.2.0
react-native: Not Found
react-native-macos: Not Found
npmGlobalPackages:
react-native: Not Found
Steps to reproduce
- Write something on a TextInput, in iOS
- Move the cursor position to a different position
- Toggle secureTextEntry
- Notice that the cursor jumped to the end of the input
Snack, screenshot, or link to a repository
Snack: https://snack.expo.dev/IL4nCHYAQ
Demo:
https://github.com/facebook/react-native/assets/48553277/afd61900-bcd6-47d2-9d38-120c3611e885
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 by running the linked Snack on iOS and reproduce the cursor jump while toggling secureTextEntry on a focused TextInput. Then trace the iOS TextInput implementation and its selection handling; done means the cursor remains at its previous position after the prop changes.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- ios, react-native
- Domain
- mobile
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100