Android OS后退按钮可将我带回到Expo项目屏幕 [英] Android OS back button takes me back to Expo projects screen

问题描述

首先，我有一个使用Expo构建的React Native应用程序，并使用React Navigation进行路由.

Firstly, I have a React Native app built using Expo and utilising React Navigation for routing.

我正在使用SwitchNavigator在代表我的授权工作流程(登录之前的屏幕)和应用程序工作流程(登录之后的屏幕)的两个堆栈导航器之间切换，看起来像这样

I'm using a SwitchNavigator to switch between two stack navigators which represent my authorisation workflow (my screens before I've logged in) and my app workflow (the screens after I've logged in) and it looks something like this.

const AppStack = createStackNavigator({ Home: HomeScreen, Second: SecondScreen, HouseDetail: HouseDetailScreen, Camera: CameraScreen}
);
const AuthStack = createStackNavigator({ Login: LoginScreen }
);

export default createSwitchNavigator(
  {
    AuthLoading: AuthLoadingScreen,
    App: AppStack,
    Auth: AuthStack,
  },
  {
    initialRouteName: 'AuthLoading'


  }
);

我的问题是Android中后退按钮的行为不正常.

My problem is that the behaviour of the back button in Android does not behave properly.

这是一个场景.我刚刚登录，并且在App堆栈的HomeScreen页面中.我将使用

Here is a scenario. I've just logged in, and I'm in the App stack's HomeScreen page. I will navigate to the SecondScreen using

this.props.navigation.navigate('Second')

在这一点上，我可以想象如果按下后退按钮，我应该回到主屏幕.

At this point, I would imagine that if I hit the back button, I should go back to the HomeScreen.

但是，当我按下后退"按钮(操作系统内置的那个)时，我退出了我的应用程序，进入了Expo项目列表.

However, when I press the back button (the one built into the OS), I get taken out of my app and into the Expo projects list.

但是，如果我运行this.props.navigation.goBack()，则它会按预期运行，并且我将返回主屏幕.

If I run this.props.navigation.goBack() though, then it works as expected and I'm back at the home screen.

为什么会这样?这是世博会的东西吗?

Why is this happening? Is this an Expo thing?

推荐答案

好，所以这是我永远都不会回来的时间.

Ok, so this was hours of time I'll never get back.

事实证明，这是最新版本的Firebase的问题.

Turns out this is an issue with the latest version of Firebase.

https://github.com/react-navigation/react-navigation /issues/1603

解决方案是降级到5.0.3，这对我有用.

The solution is to downgrade to 5.0.3 and this worked for me.

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