如何在React Navigation5中将组件的"this.state“传递到屏幕

import React from 'react';

const MyContext = React.createContext();

import React, { useState } from 'react';
import { NavigationContainer } from '@react-navigation/native';
import { createStackNavigator } from '@react-navigation/stack';
import { MyContext } from './MyContext';

const Stack = createStackNavigator();

const App = () => {
  const [state, setState] = useState('Hello');

  return (
    <MyContext.Provider value={{ state, setState }}>
      <NavigationContainer>
        <Stack.Navigator>
          {/* 定义屏幕 */}
        </Stack.Navigator>
      </NavigationContainer>
    </MyContext.Provider>
  );
};

export default App;

import React from 'react';
import { View, Text } from 'react-native';
import { MyContext } from './MyContext';

const Screen = () => {
  return (
    <MyContext.Consumer>
      {({ state }) => (
        <View>
          <Text>{state}</Text>
        </View>
      )}
    </MyContext.Consumer>
  );
};

export default Screen;