[Android] Parts of Text disappear due to incorrect
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Needs: Triage :mag:
Platform: Android
Type: New Architecture
- 主要语言
- C++
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- 平均合并
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- 30 天内合并 PR
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描述
Description
With certain word combinations and certain styling, Android Text rendering will calculate required size in such a way that some of the text will be dropped.
Minimal repro distilled from production code:
<View style={{ flexDirection: 'row'}}>
<Text style={{ fontSize: 15, lineHeight: 15, fontWeight: '900'}}>VERIFY NUMBER</Text>
</View>
Steps to reproduce
- Install application with
yarn android - Observe text visible on screen vs text props
Reproducer Tested on Android Emulator, Pixel 9a template, API 37.0
React Native Version
0.85.3 (also reproduced on 0.84, 0.83)
Affected Platforms
Runtime - Android
Areas
Fabric - The New Renderer
Output of npx @react-native-community/cli info
System:
OS: macOS 26.3.1
CPU: (11) arm64 Apple M3 Pro
Memory: 176.36 MB / 18.00 GB
Shell:
version: "5.9"
path: /bin/zsh
Binaries:
Node:
version: 22.14.0
path: /Users/mlisik/.nvm/versions/node/v22.14.0/bin/node
Yarn:
version: 1.22.22
path: /Users/mlisik/.nvm/versions/node/v22.14.0/bin/yarn
npm:
version: 11.16.0
path: /Users/mlisik/.nvm/versions/node/v22.14.0/bin/npm
Watchman:
version: 2026.03.09.00
path: /opt/homebrew/bin/watchman
Managers:
CocoaPods:
version: 1.16.2
path: /Users/mlisik/.rbenv/shims/pod
SDKs:
iOS SDK:
Platforms:
- DriverKit 25.2
- iOS 26.2
- macOS 26.2
- tvOS 26.2
- visionOS 26.2
- watchOS 26.2
Android SDK: Not Found
IDEs:
Android Studio: 2025.3 AI-253.30387.90.2532.14935130
Xcode:
version: 26.2/17C52
path: /usr/bin/xcodebuild
Languages:
Java:
version: 17.0.16
path: /usr/bin/javac
Ruby:
version: 3.3.5
path: /Users/mlisik/.rbenv/shims/ruby
npmPackages:
"@react-native-community/cli":
installed: 20.1.0
wanted: 20.1.0
react:
installed: 19.2.3
wanted: 19.2.3
react-native:
installed: 0.85.3
wanted: 0.85.3
react-native-macos: Not Found
npmGlobalPackages:
"*react-native*": Not Found
Android:
hermesEnabled: true
newArchEnabled: true
iOS:
hermesEnabled: Not found
newArchEnabled: false
Stacktrace or Logs
N/A
MANDATORY Reproducer
https://github.com/mlisikbf/MobileTest_AndroidTextWrapIssue
Screenshots and Videos
| default font weight - no issue | increased font weight to repro |
|---|---|
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
从必需的复现器开始,并在 Android 上使用 yarn android 运行它,将可见文本与 Text props 进行比较。跟踪 Issue 中所示的 flexDirection: 'row'、字体大小、行高和粗体样式对应的 Fabric Android Text 渲染路径。完成标准是复现器中完整的 VERIFY NUMBER 文本仍然可见。
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
- 基本清楚
- 新手友好度
- 45/100