react-native - react native : How to remove the current stack navigator from the navigation-stack

Question

我正在为一种情况而苦苦挣扎。所以我有三个堆栈导航器。

导航器 1 => 屏幕 1

导航器 2 => 屏幕 2

导航器 3 => 屏幕 3、屏幕 4、屏幕 5

我从 screen1 导航至 screen2 .然后从 screen2至 screen3然后 screen4然后 screen5然后导航到 screen2再次。但是现在当我在 screen2 , onBack 按我不想继续 screen5 , 而是想直接上 screen1 .
当我试图弹出 screen5 , screen4和 screen3在导航到 screen2 之前从堆栈来自 screen5使用以下代码。没用，还是 screen3留在堆栈中。

  import { StackActions } from '@react-navigation/native';

  navigation.dispatch(
       StackActions.popToTop()
  );

或

  import { StackActions } from '@react-navigation/native';

  navigation.dispatch(
       StackActions.pop(3)
  );

如何删除 navigator3从导航堆栈？以免我继续下去 screen5来自 screen2再次在BackPress
我正在使用 react-navigation 版本 5.x。

Answer 1

看看这个例子，它可以如你所愿

import * as React from 'react';
import { View, Button, Text } from 'react-native';
import { NavigationContainer } from '@react-navigation/native';
import { createStackNavigator } from '@react-navigation/stack';

const Stack = createStackNavigator();

const A = ({ navigation }) => {
  return (
    <View>
      <Text>A</Text>
      <Button title={'Next'} onPress={() => navigation.navigate('Second')} />
    </View>
  );
};
const B = ({ navigation }) => {
  return (
    <View>
      <Text>B</Text>
      <Button
        title={'Next'}
        onPress={() => navigation.navigate('Third', { screen: 'C' })}
      />
    </View>
  );
};
const C = ({ navigation }) => {
  return (
    <View>
      <Text>C</Text>
      <Button
        title={'Next'}
        onPress={() => navigation.navigate('Third', { screen: 'D' })}
      />
    </View>
  );
};
const D = ({ navigation }) => {
  return (
    <View>
      <Text>D</Text>
      <Button
        title={'Next'}
        onPress={() => navigation.navigate('Third', { screen: 'E' })}
      />
    </View>
  );
};
const E = ({ navigation }) => {
  return (
    <View>
      <Text>E</Text>
      <Button title={'Next'} onPress={() => navigation.navigate('Second')} />
    </View>
  );
};

const FirstStackScreen = () => {
  return (
    <Stack.Navigator>
      <Stack.Screen name="A" component={A} />
    </Stack.Navigator>
  );
};

const SecondStackScreen = () => {
  return (
    <Stack.Navigator>
      <Stack.Screen name="B" component={B} />
    </Stack.Navigator>
  );
};
const ThirdStackScreen = () => {
  return (
    <Stack.Navigator>
      <Stack.Screen name="C" component={C} />
      <Stack.Screen name="D" component={D} />
      <Stack.Screen name="E" component={E} />
    </Stack.Navigator>
  );
};

export default function App() {
  return (
    <NavigationContainer>
      <Stack.Navigator>
        <Stack.Screen name="First" component={FirstStackScreen} />
        <Stack.Screen name="Second" component={SecondStackScreen} />
        <Stack.Screen name="Third" component={ThirdStackScreen} />
      </Stack.Navigator>
    </NavigationContainer>
  );
}