使用Redux通过React-Navigation建立受保护的路由

Question

我们如何使用redux在react-navigation中创建受保护的路由？

考虑我有一个包含以下状态的redux存储

const mapStateToProps = state => {
  return {
    isAuthenticated: state.profileInfo.isAuthenticated,
    isLoaded: state.profileInfo.isLoaded,
    googleProfileLoading: state.profileInfo.googleProfileLoading
  }
};

我正在使用React导航来导航用户。

const loginNavigation = createStackNavigator(
  {
    login: {
      screen: Login
    },
    signup: {
      screen: Signup
    }
  },
  {
    headerMode: "none"
  }
)

const allRoutes = createSwitchNavigator(
  {
    home: {
      screen: loginNavigation
    },
    user: {
      screen: user

  },
  {
    initialRouteName: "home"
  }
);

const App = createAppContainer(allRoutes);

现在，如果用户尚未登录，我想重定向到登录屏幕。

在简单的react-redux中，这通常是我通常要做的事情：https : //github.com/irohitb/SelfieApp/blob/master/client/src/routes.js

有人可以帮我弄清楚我们如何在react-native，redux和react-navigation中创建受保护的路由

Answer 1

react-navigation createSwitchNavigator正是针对这种Authentication Flow的情况。

您必须将受保护的路由分组到一个MainStack中。用途createStackNavigator：

const MainStack = createStackNavigator(
  {
    home: { screen: HomeScreen },
    events: { screen: EventsScreen },
    profile: { screen: ProfileScreen },
    ...
  {
    initialRouteName: "home"
  }
);

然后，再次使用来配置身份验证堆栈createStackNavigator：

const AuthStack = createStackNavigator({
    login: { screen: LoginScreen },
    register: { screen: RegisterScreen },
    forgot: { screen: ForgottenPasswordScreen },
    ...
});

现在来了createSwitchNavigator-加载MainStack堆栈或AuthStack-

const Routes = createSwitchNavigator({
    initialLoading: InitialLoadingScreen,
    auth: AuthStack,
    all: MainStack,
}, {
    initialRouteName: 'initialLoading',
});

export default createAppContainer(Routes);

无论用户是否通过身份验证，createSwitchNavigatorwill加载InitialLoadingScreen都会保存逻辑：

class InitialLoadingScreen extends React.Component {
    constructor(props) {
        super(props);
        this.bootstrapAsync();
    }

    bootstrapAsync = async () => {
        // Load the home screen for the logged in users 
        if (this.props.isAuthenticated) {
            return this.props.navigation.navigate('home');
        }

        // load the Auth screen if the user is NOT logged in
        this.props.navigation.navigate('login');
    }

    // Render any loading content that you like here
    render() {
        return (
            <View style={styles.container}>
                <ActivityIndicator />
            </View>
        );
    }
}

const mapStateToProps = ({ settings }) => ({
    isAuthenticated: state.profileInfo.isAuthenticated,
    isLoaded: state.profileInfo.isLoaded,
    googleProfileLoading: state.profileInfo.googleProfileLoading
});

export default connect(mapStateToProps)(InitialLoadingScreen);

如您所见，您可以连接InitialLoadingScreen到redux存储，以访问任何数据并将其用于路由逻辑:)