如何在react native中按下按钮打开键盘？

import React, { Component } from 'react';
import { View, TextInput, Button } from 'react-native';

class MyComponent extends Component {
  render() {
    return (
      <View>
        <TextInput
          placeholder="请输入文本"
          // 其他TextInput属性设置
        />
        <Button
          title="打开键盘"
          onPress={() => {
            // 在按钮的onPress事件中，使用TextInput的focus方法来打开键盘
            this.textInput.focus();
          }}
        />
      </View>
    );
  }
}

export default MyComponent;

import React, { Component } from 'react';
import { View, TextInput, Button } from 'react-native';

class MyComponent extends Component {
  constructor(props) {
    super(props);
    this.textInput = React.createRef();
  }

  render() {
    return (
      <View>
        <TextInput
          ref={this.textInput}
          placeholder="请输入文本"
          // 其他TextInput属性设置
        />
        <Button
          title="打开键盘"
          onPress={() => {
            this.textInput.current.focus();
          }}
        />
      </View>
    );
  }
}

export default MyComponent;