TextInput value flickers when adding new lines
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- C++
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- 30 天内合并 PR
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描述
Description
Text inside text input is flickering while going to next line as well as deleting text (video 1)
but problem solved if i give height prop instead of maxHeight to the textinput or specify number of lines (video 2)
code
<TextInput
multiline
onFocus={() => setIsFocused(true)}
underlineColorAndroid={'red'}
style={{
color: colors.text,
// height: 350,
fontSize: 18,
maxHeight: 350,
marginLeft: 5,
width: '100%',
}}
textAlignVertical="top"
spellCheck={false}
onChange={e => setText(e.nativeEvent.text)}>
{txt}
Steps to reproduce
React Native Version
0.73.5
Affected Platforms
Runtime - Android
Output of npx react-native info
info Fetching system and libraries information...
System:
OS: Windows 11 10.0.22631
CPU: "(8) x64 AMD Ryzen 3 5300U with Radeon Graphics "
Memory: 969.45 MB / 7.33 GB
Binaries:
Node:
version: 20.11.0
path: C:\Program Files\nodejs\node.EXE
Yarn: Not Found
npm:
version: 10.5.0
path: C:\Program Files\nodejs\npm.CMD
Watchman: Not Found
SDKs:
Android SDK:
API Levels:
- "21"
- "28"
- "29"
- "30"
- "31"
- "33"
- "34"
Build Tools:
- 29.0.2
- 30.0.3
- 33.0.0
- 33.0.1
- 34.0.0
System Images:
- android-34 | Google APIs Intel x86_64 Atom
Android NDK: Not Found
Windows SDK:
AllowDevelopmentWithoutDevLicense: Enabled
Versions:
- 10.0.19041.0
IDEs:
Android Studio: AI-222.4459.24.2221.10121639
Visual Studio: Not Found
Languages:
Java: 17.0.8
Ruby: Not Found
npmPackages:
"@react-native-community/cli": Not Found
react:
installed: 18.2.0
wanted: 18.2.0
react-native:
installed: 0.73.5
wanted: 0.73.5
react-native-windows: Not Found
npmGlobalPackages:
"*react-native*": Not Found
Android:
hermesEnabled: true
newArchEnabled: false
iOS:
hermesEnabled: Not found
newArchEnabled: Not found
Stacktrace or Logs
-
Reproducer
snack.expo.dev/@akshaykhapare/carefree-blue-croissant?platform=android
Screenshots and Videos
video 1
https://github.com/facebook/react-native/assets/139696100/89d6f958-aefd-401e-b9dc-40a9f799abd8
video 2
https://github.com/facebook/react-native/assets/139696100/38443aae-2857-47db-b8ec-0047d9dd07fd
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
该 issue 未指定源文件或测试。首先在 Android 上运行链接的 Expo Snack,并在使用 maxHeight 的多行 TextInput 中添加或删除行时复现闪烁;完成的标准是闪烁消失,且不需要固定高度或显式的行数。
由索引模型根据 Issue 内容生成。
评估
- 技术栈
- android, react-native
- 领域
- mobile-dev
- 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
- 需要澄清
- 新手友好度
- 42/100