Question

我的应用程序包含抽屉导航器和堆栈导航器。但问题是，当我试图goback时，即使我是2-3堆深，它也会带我进入第一个屏幕。它不显示以前的屏幕，它总是把我带到主屏幕。下面是我的App.js代码

import React from 'react';
import {
    ActivityIndicator,
    AsyncStorage,
    Button,
    StatusBar,
    StyleSheet,
    View,
} from 'react-native';
import {StackNavigator, SwitchNavigator, DrawerNavigator} from 'react-navigation';

import Screen1 from './Screen/Screen1';
import Screen2 from './Screen/Screen2';
import Screen3 from './Screen/Screen3';
import Screen4 from './Screen/Screen4';
import Screen5 from './Screen/Screen5';
import ScreenList from './Screen/ScreenList';

import Login from './Screen/Login';


class AuthLoadingScreen extends React.Component {
    constructor() {
        super();
        this._bootstrapAsync();
    }

    // Fetch the token from storage then navigate to our appropriate place
    _bootstrapAsync = async () => {
        const userToken = await AsyncStorage.getItem('user');

        // This will switch to the App screen or Auth screen and this loading
        // screen will be unmounted and thrown away.
        this.props.navigation.navigate(userToken ? 'App' : 'Auth');
    };

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

const styles = StyleSheet.create({
    container: {
        flex: 1,
        alignItems: 'center',
        justifyContent: 'center',
    },
});

const AppStack = DrawerNavigator({
    Screen1: { screen: Screen1},
    Screen2: { screen: Screen2},
    Screen3: { screen: Screen3},
    Screen4: { screen: Screen4},
    Screen5: { screen: Screen5},
    ScreenList: { screen: ScreenList},
}, {contentComponent: SideBar});


const AuthStack = StackNavigator({Login: { screen: Login}},{headerMode:'none'});

const MyNavigator = SwitchNavigator(
    {
        AuthLoading: AuthLoadingScreen,
        App: AppStack,
        Auth: AuthStack,
    },
    {
        initialRouteName: 'AuthLoading'
    }
);

export default class App extends React.Component {
    render() {
        return <MyNavigator />;
    }
}

从屏幕1，我点击按钮，然后转到屏幕2和屏幕3，如：

onPress={() => navigate('Screen2', { })}

它工作正常，但是当我使用屏幕3中的波纹管代码返回时，我需要屏幕1而不是屏幕2

this.props.navigation.goBack();

我错过了什么吗？

Answer 1

你试过吗

1 - ＆gt; 2 - ＆gt; 3 - ＆gt; 4

<Button
   onPress={() => goBack('3')}
   title="Go to 3 screen"
 />

React Native onBack进入首屏问题

1 个答案: