Lexicon：一个可定制的原生移动应用程序，用于您的Discourse站点

sptrf · 2021 年8 月 31 日 16:35

你好，应用在加载包含非英文字符（例如中文）的帖子时似乎存在一些问题。我猜测这可能与 Discourse 的 Unicode 名称功能有关（https://meta.discourse.org/t/unicode-usernames-and-group-names/117737）。我已在 GitHub 仓库中提交了一个问题，并附上了详细的错误日志：

github.com/lexiconhq/lexicon

Got exception while the username and content of the post are encoded with Chinese or other non-English characters

opened 04:30PM - 31 Aug 21 UTC

closed 01:46PM - 28 Jul 22 UTC

sparkcyf

## Detailed Issue Hi, thank you for creating such an awesome app for the discou…rse instance! Unfortunately, when I tried to connect the app to my own discourse instance, I found some problems that may be related to character encoding: When the username or the content of the post contains unicode characters (e.g. Chinese characters), the application will throw an exception as follows: <details> <summary>Exception</summary> ``` TypeError: null is not an object (evaluating 'cacheUser.username') This error is located at: in PostDetail (at SceneView.tsx:122) in StaticContainer in StaticContainer (at SceneView.tsx:115) in EnsureSingleNavigator (at SceneView.tsx:114) in SceneView (at useDescriptors.tsx:153) in RCTView (at View.js:34) in View (at CardContainer.tsx:245) in RCTView (at View.js:34) in View (at CardContainer.tsx:244) in RCTView (at View.js:34) in View (at CardSheet.tsx:33) in ForwardRef(CardSheet) (at Card.tsx:573) in RCTView (at View.js:34) in View (at createAnimatedComponent.js:165) in AnimatedComponent (at createAnimatedComponent.js:215) in ForwardRef(AnimatedComponentWrapper) (at Card.tsx:555) in PanGestureHandler (at GestureHandlerNative.tsx:13) in PanGestureHandler (at Card.tsx:549) in RCTView (at View.js:34) in View (at createAnimatedComponent.js:165) in AnimatedComponent (at createAnimatedComponent.js:215) in ForwardRef(AnimatedComponentWrapper) (at Card.tsx:544) in RCTView (at View.js:34) in View (at Card.tsx:538) in Card (at CardContainer.tsx:206) in CardContainer (at CardStack.tsx:623) in RNSScreen (at createAnimatedComponent.js:165) in AnimatedComponent (at createAnimatedComponent.js:215) in ForwardRef(AnimatedComponentWrapper) (at src/index.native.tsx:147) in Screen (at Screens.tsx:74) in MaybeScreen (at CardStack.tsx:616) in RNSScreenContainer (at src/index.native.tsx:186) in ScreenContainer (at Screens.tsx:50) in MaybeScreenContainer (at CardStack.tsx:498) in CardStack (at StackView.tsx:462) in KeyboardManager (at StackView.tsx:458) in SafeAreaProviderCompat (at StackView.tsx:455) in RCTView (at View.js:34) in View (at StackView.tsx:454) in StackView (at createStackNavigator.tsx:87) in StackNavigator (at StackNavigator.tsx:36) in StackNavigator (at SceneView.tsx:122) in StaticContainer in StaticContainer (at SceneView.tsx:115) in EnsureSingleNavigator (at SceneView.tsx:114) in SceneView (at useDescriptors.tsx:153) in RCTView (at View.js:34) in View (at CardContainer.tsx:245) in RCTView (at View.js:34) in View (at CardContainer.tsx:244) in RCTView (at View.js:34) in View (at CardSheet.tsx:33) in ForwardRef(CardSheet) (at Card.tsx:573) in RCTView (at View.js:34) in View (at createAnimatedComponent.js:165) in AnimatedComponent (at createAnimatedComponent.js:215) in ForwardRef(AnimatedComponentWrapper) (at Card.tsx:555) in PanGestureHandler (at GestureHandlerNative.tsx:13) in PanGestureHandler (at Card.tsx:549) in RCTView (at View.js:34) in View (at createAnimatedComponent.js:165) in AnimatedComponent (at createAnimatedComponent.js:215) in ForwardRef(AnimatedComponentWrapper) (at Card.tsx:544) in RCTView (at View.js:34) in View (at Card.tsx:538) in Card (at CardContainer.tsx:206) in CardContainer (at CardStack.tsx:623) in RNSScreen (at createAnimatedComponent.js:165) in AnimatedComponent (at createAnimatedComponent.js:215) in ForwardRef(AnimatedComponentWrapper) (at src/index.native.tsx:147) in Screen (at Screens.tsx:74) in MaybeScreen (at CardStack.tsx:616) in RNSScreenContainer (at src/index.native.tsx:186) in ScreenContainer (at Screens.tsx:50) in MaybeScreenContainer (at CardStack.tsx:498) in CardStack (at StackView.tsx:462) in KeyboardManager (at StackView.tsx:458) in SafeAreaProviderCompat (at StackView.tsx:455) in RCTView (at View.js:34) in View (at StackView.tsx:454) in StackView (at createStackNavigator.tsx:87) in StackNavigator (at RootStackNavigator.tsx:29) in RootStackNavigator (at AppNavigator.tsx:21) in EnsureSingleNavigator (at BaseNavigationContainer.tsx:409) in ForwardRef(BaseNavigationContainer) (at NavigationContainer.tsx:91) in ThemeProvider (at NavigationContainer.tsx:90) in ForwardRef(NavigationContainer) (at AppNavigator.tsx:20) in AppNavigator (at App.tsx:26) in ModalProvider (at App.tsx:25) in PostProvider (at App.tsx:24) in ThemeProvider (at App.tsx:23) in AppearanceProvider (at App.tsx:22) in RNCSafeAreaProvider (at SafeAreaContext.tsx:76) in SafeAreaProvider (at App.tsx:21) in StorageProvider (at App.tsx:20) in ApolloProvider (at App.tsx:19) in App (created by ExpoRoot) in ExpoRoot (at renderApplication.js:45) in RCTView (at View.js:34) in View (at AppContainer.js:106) in DevAppContainer (at AppContainer.js:121) in RCTView (at View.js:34) in View (at AppContainer.js:132) in AppContainer (at renderApplication.js:39) at node_modules/react-native/Libraries/Core/ExceptionsManager.js:104:6 in reportException at node_modules/react-native/Libraries/Core/ExceptionsManager.js:171:19 in handleException at node_modules/react-native/Libraries/Core/ReactFiberErrorDialog.js:43:2 in showErrorDialog ``` </details> which may be related to: https://github.com/lexiconhq/lexicon/blob/e0a61d2f535181525edb3c1312aed51976c6ddec/frontend/src/screens/PostDetail.tsx#L357 ## Ways to reproduce - Set the `PROSE_DISCOURSE_HOST` of prose to `https://springboot.io/` (which is a chinese springboot discourse fourm) - start the app by `npm run --prefix frontend start` - Click any post that is written in Chinese. Which could lead to the exception of the application. Thanks in advanced!

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Lexicon：一个可定制的原生移动应用程序，用于您的Discourse站点

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