100% height does not match window height on some devices.
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描述
Description
The height obtained from useWindowDimensions() and the height provided by "onLayout" when the style is "height: 100%" is not consistent on some Android devices. I have specifically seen this on the Nexus 4 and Nexus 5X devices. When the same code runs on the Pixel 6, it provide consistent results out to many decimal places.
Steps to reproduce
- Clone this project: HeightBug (github) (based on the standard new tempate-- only App.tsx differs)
- Run it on a Pixel 6 (emulator, API 33). See that it reports similar numbers
- Run it on a Nexus 4 (emulator, API 33). See that it does dissimilar numbers (616, and 592 for me).
React Native Version
0.73.1
Affected Platforms
Runtime - Android
Output of npx react-native info
info Fetching system and libraries information...
System:
OS: macOS 14.2
CPU: (10) arm64 Apple M1 Max
Memory: 79.38 MB / 64.00 GB
Shell:
version: "5.9"
path: /bin/zsh
Binaries:
Node:
version: 18.16.1
path: ~/.nvm/versions/node/v18.16.1/bin/node
Yarn:
version: 1.22.19
path: ~/.nvm/versions/node/v18.16.1/bin/yarn
npm:
version: 9.5.1
path: ~/.nvm/versions/node/v18.16.1/bin/npm
Watchman:
version: 2023.07.03.00
path: /opt/homebrew/bin/watchman
Managers:
CocoaPods:
version: 1.12.0
path: /opt/homebrew/bin/pod
SDKs:
iOS SDK:
Platforms:
- DriverKit 23.0
- iOS 17.0
- macOS 14.0
- tvOS 17.0
- watchOS 10.0
Android SDK:
API Levels:
- "29"
- "33"
- "34"
Build Tools:
- 29.0.2
- 30.0.3
- 33.0.0
- 34.0.0
System Images:
- android-21 | Google APIs ARM 64 v8a
- android-23 | ARM 64 v8a
- android-33 | Google APIs ARM 64 v8a
- android-33 | Google Play ARM 64 v8a
Android NDK: Not Found
IDEs:
Android Studio: Not Found
Xcode:
version: 15.0.1/15A507
path: /usr/bin/xcodebuild
Languages:
Java:
version: 20.0.1
path: /Users/dcorbin/.jenv/shims/javac
Ruby:
version: 3.1.0
path: /Users/dcorbin/.rbenv/shims/ruby
npmPackages:
"@react-native-community/cli": Not Found
react:
installed: 18.2.0
wanted: 18.2.0
react-native:
installed: 0.73.1
wanted: 0.73.1
react-native-macos: Not Found
npmGlobalPackages:
"*react-native*": Not Found
Android:
hermesEnabled: true
newArchEnabled: false
iOS:
hermesEnabled: Not found
newArchEnabled: false
Stacktrace or Logs
There is no crash.
Reproducer
https://github.com/dcorbin/rnHeightBug
Screenshots and Videos
Nexus4Api33
Pixel6API33
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 rnHeightBug 复现器开始,在 Pixel 6 和 Nexus 4 API 33 配置上,对样式设置为 height: 100% 的视图,将 useWindowDimensions() 与 onLayout 的结果进行比较。检查涉及这些测量的 React Native 0.73.1 Android 布局行为。当受影响设备上报告的高度保持一致,且不改变复现器预期的布局时,即视为完成。
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
- 停滞
- 描述清晰度
- 基本清楚
- 新手友好度
- 35/100