添加文本以切换表单控件，并使用material ui在切换中更改它

npm install react-native-paper

// App.js
import * as React from 'react';
import { Provider as PaperProvider } from 'react-native-paper';
import Main from './Main';

export default function App() {
  return (
    <PaperProvider>
      <Main />
    </PaperProvider>
  );
}

// Main.js
import React, { useState } from 'react';
import { View, Text, StyleSheet } from 'react-native';
import { Switch, TextInput, Button } from 'react-native-paper';

const Main = () => {
  const [isSwitchOn, setIsSwitchOn] = useState(false);
  const [text, setText] = useState('');

  const onToggleSwitch = () => setIsSwitchOn(!isSwitchOn);

  return (
    <View style={styles.container}>
      <Text style={styles.label}>Toggle the switch to change the text:</Text>
      <Switch value={isSwitchOn} onValueChange={onToggleSwitch} />
      <TextInput
        label="Enter some text"
        value={text}
        onChangeText={text => setText(text)}
        style={styles.input}
      />
      <Text style={styles.output}>
        {isSwitchOn ? text : 'Switch is off'}
      </Text>
    </View>
  );
};

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    padding: 16,
  },
  label: {
    fontSize: 18,
    marginBottom: 16,
  },
  input: {
    width: '100%',
    marginBottom: 16,
  },
  output: {
    fontSize: 18,
    marginTop: 16,
  },
});

export default Main;