在render react native之后调用的函数

import React, { Component } from 'react';
import axios from 'axios';

class MyComponent extends Component {
  componentDidMount() {
    axios.get('https://api.example.com/data')
      .then(response => {
        this.setState({ data: response.data });
      })
      .catch(error => {
        console.error(error);
      });
  }

  render() {
    // Render component using this.state.data
    return (
      <div>{this.state.data}</div>
    );
  }
}

import React, { Component } from 'react';

class MyComponent extends Component {
  componentDidMount() {
    window.addEventListener('scroll', this.handleScroll);
  }

  componentWillUnmount() {
    window.removeEventListener('scroll', this.handleScroll);
  }

  handleScroll = () => {
    // Handle scroll event
  }

  render() {
    // Render component
    return (
      <div>My Component</div>
    );
  }
}

import React, { Component } from 'react';
import VideoPlayer from 'video-player-library';

class MyComponent extends Component {
  componentDidMount() {
    this.videoPlayer = new VideoPlayer();
    this.videoPlayer.initialize();
  }

  componentWillUnmount() {
    this.videoPlayer.destroy();
  }

  render() {
    // Render component with video player
    return (
      <div>My Component with Video Player</div>
    );
  }
}