使用反应导航将导航历史重置为登录屏幕

Question

我想在登录(欢迎)后用户导航到Home.我重置了历史记录,因此用户无法像这样返回:

const actionToDispatch = NavigationActions.reset({
            index: 0,
            actions: [NavigationActions.navigate({ routeName: 'Home' })]
        });

        this.props.navigation.dispatch(actionToDispatch);

这工作正常.按下注销后,用户应该返回欢迎,但它不起作用.这就是我在做什么:

const resetAction = NavigationActions.reset({
            index: 0,
            actions: [
                NavigationActions.navigate({ routeName: 'Welcome' }),
            ]
        });

        this.props.navigation.dispatch(resetAction);

该错误表示没有"欢迎"的路线.必须是"主要","隐私","条款"之一,它们是主页中某个标签的路线.见下文:

 const AppStack = StackNavigator({
                    Welcome: {
                        screen: Welcome
                    },
                    Home: {
                        screen: Tabs
                    }
                }, {
                        initialRouteName: this.state.isLoggedIn ? 'Home' : 'Welcome',
                        headerMode: 'none'
                    }
                );

export const ProfileStack = StackNavigator({
    Profile: {
        screen: Profile,
    },
});

export const SettingsStack = StackNavigator({
    Settings: {
        screen: Settings,
    },
}, {
    });

export const InfoStack = StackNavigator({
    Main: {
        screen: Main,
    },
    Privacy: {
        screen: Privacy
    },
    Terms: {
        screen: Terms
    }
});

const routeConfiguration = {

    Profile: { screen: ProfileStack },
    Settings: { screen: SettingsStack },
    Info: { screen: InfoStack }
};

const tabBarConfiguration = {
    tabBarOptions: {
        activeTintColor: 'white',
        inactiveTintColor: 'lightgray',
        labelStyle: {
            fontSize: Normalize(10),
            fontFamily: Fonts.book
        },
        style: {
            backgroundColor: Colors.greenLightGradient,
            borderTopWidth: 1,
            borderTopColor: Colors.tabGreenLine
        },
    }
};

export const Tabs = TabNavigator(routeConfiguration, tabBarConfiguration);

Answer 1

我在这里找到了解决方案:https://github.com/react-community/react-navigation/pull/789.

const resetAction = NavigationActions.reset({
            index: 0,
            actions: [
                NavigationActions.navigate({ routeName: 'Welcome' }),
            ],
            key: null
        });

this.props.navigation.dispatch(resetAction);

key:null是重要的部分.