Question

我正在学习通过将tabNavigator，DrawerNavigator和StackNavigator配置为一个没有NativeBase或Expo的单一反应导航库来进行本地反应。

我实现了它，但是当我在应用程序中执行某些特定的顺序时会出错。

应用程序从“选项卡屏幕”开始。 ->更改选项卡->打开抽屉->转到堆栈->打开抽屉，然后转到选项卡会出现此错误。

这是我的代码：

App.js

import React from 'react';
import {Drawer} from "./src/navigation/MergedNavigator";
import {View,Text} from "react-native";

const App = () => (
    <View style={{flex: 1,backgroundColor: '#293656'}}>
        <Drawer />
    </View>
);

export default App;

MergedNavigator.js

import {DrawerNavigator,StackNavigator,createBottomTabNavigator} from 'react-navigation';

// stack navigation screens
import DetailScreen from '../screens/detail';
import MainScreen from '../screens/main';
import ForgotScreen from '../screens/ForgotScreen';
import RegisterScreen from '../screens/RegisterScreen';

// tab navigator screens
import LoginScreen from '../screens/Login';
import TabOne from '../screens/tabA';
import TabTwo from '../screens/tabB';

//plain

export const stack = StackNavigator({
    DetailScreen:{screen:DetailScreen},
    MainScreen:{screen:MainScreen}
},{
    initialRouteName:'DetailScreen'
});

const secondStack = StackNavigator({
    RegisterScreen:{screen:RegisterScreen},
    ForgotScreen:{screen:ForgotScreen}
},{
    initialRouteName:'ForgotScreen'
})

export const Tabs = createBottomTabNavigator({
    Login:{screen:LoginScreen},
    TabOne:{screen:secondStack},
    TabTwo:{screen:TabTwo}
},{
    animationEnabled:true
})

export const Drawer = DrawerNavigator({
    Tabs:{screen:Tabs},
    Stack:{screen:stack}
})

所有其他导入的堆栈屏幕都只有标题。我的代码在这里出什么问题？还是有什么更好的方法可以仅通过反应导航来实现所有这三个导航器？

Answer 1

首先，您的主要问题是您不能在代码上创建多个StackNavigator（）。

请尝试使用其他导航器进行重定向，例如以下示例代码。

import {DrawerNavigator,StackNavigator,createBottomTabNavigator,createMaterialTopTabNavigator} from 'react-navigation';

// stack navigation screens
import DetailScreen from '../screens/detail';
import MainScreen from '../screens/main';
import ForgotScreen from '../screens/ForgotScreen';
import RegisterScreen from '../screens/RegisterScreen';

// tab navigator screens
import * as TAB from '../tab';

export const stack = StackNavigator({
    DetailScreen:{screen:DetailScreen},
    MainScreen:{screen:MainScreen}
},{
    initialRouteName:'DetailScreen'
});

const secondStack = createMaterialTopTabNavigator({
    RegisterScreen:{screen:RegisterScreen},
    ForgotScreen:{screen:ForgotScreen}
},{
    initialRouteName:'ForgotScreen'
})

export const Tabs = createBottomTabNavigator({
    Login:{screen:TAB.Login},
    TabOne:{screen:secondStack},
    TabTwo:{screen:TAB.TabB}
},{
    animationEnabled:true,
    initialRouteName:'Login'
})

export const Drawer = DrawerNavigator({
    Tabs:{screen:Tabs},
    Stack:{screen:stack}
},
{
    animationEnabled:true,
    initialRouteName:'Tabs'
})

希望以上代码段对您有用。

Answer 2

子操作在堆栈中被重置存在问题，here

因此，解决此问题的方法是将createBottomTabNavigator用createStackNavigator包装在headerMode: none内，以达到预期的效果。

信息

通过添加直接嵌套在 DrawerNavigator 中的 StackNavigator ，子操作将仅重置为定义的 StackNavigator ，并且不会影响子屏幕显示状态，因此不会引发错误，如code

中所述

if (route.index !== undefined && route.index !== 0) {
   subAction = NavigationActions.reset({
   index: 0,
   actions: [
      NavigationActions.navigate({
      routeName: route.routes[0].routeName,
   }),
  ],
 });
}

MergedNavigator.js

import ForgotScreen from '../screens/ForgotScreen';
import RegisterScreen from '../screens/RegisterScreen';

// tab navigator screens
import LoginScreen from '../screens/Login';
import TabOne from '../screens/tabA';
import TabTwo from '../screens/tabB';

//plain

export const stack = StackNavigator({
    DetailScreen:{screen:DetailScreen},
    MainScreen:{screen:MainScreen}
},{
    initialRouteName:'DetailScreen'
});

const secondStack = StackNavigator({
    RegisterScreen:{screen:RegisterScreen},
    ForgotScreen:{screen:ForgotScreen}
},{
    initialRouteName:'ForgotScreen'
})

export const Tabs = createBottomTabNavigator({
    Login:{screen:LoginScreen},
    TabOne:{screen:secondStack},
    TabTwo:{screen:TabTwo}
},{
    animationEnabled:true
})

const TabStack = createStackNavigator({ //... Adding the Stack here
  Tabs: {screen: Tabs}
}, {
  headerMode: 'none'
})

export const Drawer = DrawerNavigator({
    Tabs:{screen:Tab},
    Stack:{screen:stack}
})

Here's启用了标题的修改后的小吃

Answer 3

import { StackActions, NavigationActions } from 'react-navigation';

let { navigation } = this.props;
let resetAction = StackActions.reset({
    key: undefined,
    index: 0,
    actions: [NavigationActions.navigate({ routeName: 'YourScreen' })],
});
navigation.dispatch(resetAction);

将键设置为undefined时，导航器将使用实际的堆栈，而不是根。

React Native-没有为登录定义路由

3 个答案:

信息

MergedNavigator.js