WPF文本框中加提示语

文章目录

• 1.截图
• 2.代码
• 3.导入本地文件

1.截图

2.代码

import UIKit
import AVKit
import AVFoundation

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        view.backgroundColor = .white
        
        // 创建按钮
        let button = UIButton(type: .system)
        button.frame = CGRect(x: 100, y: 100, width: 200, height: 50)
        button.setTitle("Play Video", for: .normal)
        button.backgroundColor = .systemBlue
        button.setTitleColor(.white, for: .normal)
        
        // 添加按钮的点击事件
        button.addTarget(self, action: #selector(buttonTapped), for: .touchUpInside)
        
        // 将按钮添加到视图中
        self.view.addSubview(button)
    }


    var playerViewController: AVPlayerViewController!
    var player: AVPlayer!


    @objc func buttonTapped() {
        //本地视频
        guard let localVideoURL = Bundle.main.url(forResource: "sample3", withExtension: "mp4") else {
            MyPrint("Invalid URL")
            return
        }
        // 创建AVPlayer
        player = AVPlayer(url: localVideoURL)

        // 创建AVPlayerViewController并设置player
        playerViewController = AVPlayerViewController()
        playerViewController.player = player
        present(playerViewController, animated: true) { [self] in
            player.play()
        }

    }

}

3.导入本地文件