TextInput multiline is jumpy and flaky when pressing new line
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还没有人认领这个 Issue。
Component: TextInput
Needs: Triage :mag:
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- C++
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描述
Description
When you set mutline to true and enter/delete new lines, the scrolling is really flaky. Notice that this app was instantiated with npx react-native init myapp --template react-native-template-typescript
Android
iOS
Version
0.67.2
Output of npx react-native info
info Fetching system and libraries information...
System:
OS: macOS 11.6
CPU: (8) x64 Intel(R) Core(TM) i7-6820HQ CPU @ 2.70GHz
Memory: 72.38 MB / 16.00 GB
Shell: 5.8 - /bin/zsh
Binaries:
Node: 16.13.0 - ~/.nvm/versions/node/v16.13.0/bin/node
Yarn: 1.22.17 - ~/projects/samalapit/sellers/mobile-app/node_modules/.bin/yarn
npm: 8.1.0 - ~/.nvm/versions/node/v16.13.0/bin/npm
Watchman: 2021.12.06.00 - /usr/local/bin/watchman
Managers:
CocoaPods: 1.11.2 - /Users/aprilmintacpineda/.rvm/gems/ruby-3.0.2/bin/pod
SDKs:
iOS SDK:
Platforms: DriverKit 21.2, iOS 15.2, macOS 12.1, tvOS 15.2, watchOS 8.3
Android SDK: Not Found
IDEs:
Android Studio: 2020.3 AI-203.7717.56.2031.7935034
Xcode: 13.2.1/13C100 - /usr/bin/xcodebuild
Languages:
Java: 11.0.11 - /usr/bin/javac
npmPackages:
@react-native-community/cli: Not Found
react: 17.0.2 => 17.0.2
react-native: 0.67.2 => 0.67.2
react-native-macos: Not Found
npmGlobalPackages:
*react-native*: Not Found
Steps to reproduce
import { TextInput } from 'react-native';
<TextInput
style={{
borderWidth: 1,
borderColor: '#000'
}}
multiline
/>
Adding scrollEnabled={false} will somehow fix the issue but:
- it's not viable if you need the scrolling to be enabled.
- It only fixes it for iOS, Android will still have a problem especially when delete new lines fast as seen in the video above.
Snack, code example, screenshot, or link to a repository
No response
贡献指南
从这里开始
- 先读完整个 Issue,再读项目的贡献指南。
- 在 Issue 下留言说明你要接手 —— 这能避免两个人做同样的事。
- Fork 仓库,在一个分支上完成修改。
- 提交 Pull Request,并在描述里引用这个 Issue 编号。
调研方向
使用提供的 TypeScript 复现代码,从 React Native TextInput 的 multiline 行为入手,并比较在 Android 和 iOS 上启用滚动时换行符的插入和删除。完成标准是 multiline 输入不再出现不可靠的跳动或滚动,包括快速删除换行符时,同时 scrollEnabled 仍保持为 true。
由索引模型根据 Issue 内容生成。
评估
- 技术栈
- react-native
- 领域
- mobile
- Issue 类型
- 缺陷
- 难度
- 4/5
- 预计耗时
- 3-5 天
- 活跃度
- 冷清
- 描述清晰度
- 基本清楚
- 新手友好度
- 45/100