react / react/react-native

ios wont trigger re-render with appearance.setColorSheme() on app start

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#38,753 8 comentarios 0 reacciones 0 asignados Ver en GitHub

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Issue: Author Provided Repro Needs: Version Info Platform: iOS
Lenguaje dominante
C++
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Forks
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Merge medio
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PR fusionados (30 d)
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Descripción

Description

When using Appearance.setColorScheme on app start, the change doesnt trigger a re-render in ios. I used the latest react native bare app and added a Appeareance.setColorScheme('white') in app component.
This works on android, thus the app will start in white mode. But it doesnt work on ios, the app starts in system mode nevertheless.
But the colorScheme is set to white, because if i want to set it to white again to trigger re-render manually, nothing happens, because i want to change it to the same value it is set to.

React Native Version

0.72.3

Output of npx react-native info

System:
OS: macOS 13.4.1
CPU: (8) arm64 Apple M1 Pro
Memory: 79.59 MB / 16.00 GB
Shell:
version: "5.9"
path: /bin/zsh
Binaries:
Node:
version: 16.17.0
path: /usr/local/bin/node
Yarn:
version: 1.22.19
path: /usr/local/bin/yarn
npm:
version: 9.6.0
path: /usr/local/bin/npm
Watchman:
version: 2023.07.24.00
path: /opt/homebrew/bin/watchman
Managers:
CocoaPods:
version: 1.12.0
path: /usr/local/bin/pod
SDKs:
iOS SDK:
Platforms:
- DriverKit 22.2
- iOS 16.2
- macOS 13.1
- tvOS 16.1
- watchOS 9.1
Android SDK:
API Levels:
- "28"
- "30"
- "31"
- "33"
Build Tools:
- 29.0.2
- 30.0.2
- 30.0.3
- 31.0.0
- 33.0.0
System Images:
- android-31 | Google APIs ARM 64 v8a
Android NDK: Not Found
IDEs:
Android Studio: 2021.2 AI-212.5712.43.2112.8815526
Xcode:
version: 14.2/14C18
path: /usr/bin/xcodebuild
Languages:
Java:
version: 11.0.20
path: /opt/homebrew/opt/openjdk@11/bin/javac
Ruby:
version: 3.2.2
path: /Users/user/.rbenv/shims/ruby
npmPackages:
"@react-native-community/cli": Not Found
react:
installed: 18.2.0
wanted: 18.2.0
react-native:
installed: 0.72.3
wanted: 0.72.3
react-native-macos: Not Found
npmGlobalPackages:
"react-native": Not Found
Android:
hermesEnabled: true
newArchEnabled: false
iOS:
hermesEnabled: true
newArchEnabled: false

Steps to reproduce
  • new react native application
  • Appearance.setColorScheme() at the start of the app, i use layouteffect in app
function App(): JSX.Element {
  const isDarkMode = useColorScheme() === 'dark';

  const backgroundStyle = {
    backgroundColor: isDarkMode ? Colors.darker : Colors.lighter,
  };

  useLayoutEffect(() => {
    Appearance.setColorScheme('light');
  }, []);
.
.
.
Snack, screenshot, or link to a repository

https://github.com/Pluvas159/appearanceIOS

https://github.com/facebook/react-native/assets/79486973/50e18243-3723-4f51-8421-e9b8903f3cd7

Guía de contribución

Abrir la guía de contribución

Primeros pasos

  1. Lee el issue completo y luego la guía de contribución del proyecto.
  2. Comenta en el issue que vas a ocuparte — evita que dos personas hagan lo mismo.
  3. Haz un fork del repositorio y trabaja en una rama.
  4. Abre un pull request que haga referencia al número del issue.

Línea de trabajo

Comienza con la reproducción de appearanceIOS enlazada y la llamada a useLayoutEffect del componente App a Appearance.setColorScheme('light'). Compara el comportamiento de iOS y Android cuando se inicia la aplicación y, a continuación, verifica que iOS aplica el esquema solicitado y vuelve a renderizar, utilizando la configuración de React Native 0.72.3 indicada en el informe.

Escrito por el modelo de indexación a partir del texto del issue.

Evaluación

Stack tecnológico
react-native, typescript
Área
mobile
Tipo de issue
Error
Dificultad
3/5
Tiempo estimado
1-2 días
Estado de actividad
Estancado
Claridad
Bastante claro
Aptitud para principiantes
45/100

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