react-native - 一个 React Native 屏幕可以包含在两个不同的堆栈导航器中吗？

Question

是否有任何理由不应将屏幕包含在两个不同的堆栈导航器中？

我希望它在两个堆栈导航器中都有一个平滑的、流入的页面过渡和后退按钮，以平滑地返回上一页。在下面的示例中，ContactScreen出现两次:

const StackOne = createStackNavigator({
  About: AboutScreen,
  FAQ: FAQScreen,
  Contact: ContactScreen
});

const StackTwo = createStackNavigator({
  Main: MainScreen,
  Details: DetailsScreen
  Contact: ContactScreen
});

const MainTabs = createBottomTabNavigator({
  TabOne: StackOne,
  TabTwo: StackTwo
});

Answer 1

是的，您可以在不同的堆栈导航器中使用相同的屏幕。按照这个例子:

.js file

import React from 'react';
import { Button, Text, View } from 'react-native';
import { Ionicons } from '@expo/vector-icons';
import { createStackNavigator, createBottomTabNavigator, createAppContainer } from 'react-navigation';

class HomeScreen extends React.Component {
  render() {
    return (
      <View style={{ flex: 1, justifyContent: 'center', alignItems: 'center' }}>
        <Text>Home!</Text>
        <Button
          title="Go to Settings"
          onPress={() => this.props.navigation.navigate('Settings')}
        />
        <Button
          title="Go to Details"
          onPress={() => this.props.navigation.navigate('Details')}
        />
      </View>
    );
  }
}

class SettingsScreen extends React.Component {
  render() {
    return (
      <View style={{ flex: 1, justifyContent: 'center', alignItems: 'center' }}>
        <Text>Settings!</Text>
        <Button
          title="Go to Home"
          onPress={() => this.props.navigation.navigate('Home')}
        />
        <Button
          title="Go to Details"
          onPress={() => this.props.navigation.navigate('Details')}
        />
      </View>
    );
  }
}

class DetailsScreen extends React.Component {
  render() {
    return (
      <View style={{ flex: 1, justifyContent: 'center', alignItems: 'center' }}>
        <Text>Details!</Text>
      </View>
    );
  }
}

const HomeStack = createStackNavigator({
  Home: { screen: HomeScreen },
  Details: { screen: DetailsScreen },
});

const SettingsStack = createStackNavigator({
  Settings: { screen: SettingsScreen },
  Details: { screen: DetailsScreen },
});

export default createAppContainer(createBottomTabNavigator(
  {
    Home: { screen: HomeStack },
    Settings: { screen: SettingsStack },
  },
  {
    defaultNavigationOptions: ({ navigation }) => ({
      tabBarIcon: ({ focused, tintColor }) => {
        const { routeName } = navigation.state;
        let iconName;
        if (routeName === 'Home') {
          iconName = `ios-information-circle${focused ? '' : '-outline'}`;
        } else if (routeName === 'Settings') {
          iconName = `ios-options${focused ? '' : '-outline'}`;
        }

        // You can return any component that you like here! We usually use an
        // icon component from react-native-vector-icons
        return <Ionicons name={iconName} size={25} color={tintColor} />;
      },
    }),
    tabBarOptions: {
      activeTintColor: 'tomato',
      inactiveTintColor: 'gray',
    },
  }
));