ios AVPlayer按钮操作未被触发

Question

我正在尝试在视频播放器上添加按钮。按钮已添加，但点击事件未从iOS模拟器触发。

但是，当我以编程方式执行时，事件会被准确触发。

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.


    guard let url = URL(string: "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_adv_example_hevc/master.m3u8") else {
        return
    }
    // Create an AVPlayer, passing it the HTTP Live Streaming URL.
    let player = AVPlayer(url: url)

    // Create a new AVPlayerViewController and pass it a reference to the player.
    let playerLayer = AVPlayerLayer(player: player)
    playerLayer.frame = self.view.bounds



    let btn = UIButton(type: .roundedRect)
    btn.backgroundColor = UIColor.yellow
    btn.setTitle("Do stuff 1", for: .normal)
    btn.frame = CGRect(x: 0, y: 330, width: 300, height: 300)
    btn.isUserInteractionEnabled = true
    btn.addTarget( self, action: #selector(self.pressButton(button:)), for: .touchUpInside)

    //btn.sendActions(for: .touchUpInside)
    //controller.contentOverlayView?.addSubview(btn)
    playerLayer.addSublayer(btn.layer)

    self.view.layer.addSublayer(playerLayer)
    player.play()
}

请帮忙。我怎样才能解决这个问题？

Answer 1

您无法使用storyboard按钮按下按钮，因为它位于图层后面。

你有两个选择。

1）在故事板中创建一个单独的视图，您可以在其中添加视频图层，而不是直接添加到主视图和按钮顶部

2）改变按钮的Z位置

button.layer.zPosition = 1

Answer 2

问题是您要添加按钮的图层而不是将按钮添加为子视图。这是您可以剪切和粘贴的完整代码。

import UIKit
import AVFoundation

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.


        guard let url = URL(string: "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_adv_example_hevc/master.m3u8") else {
            return
        }
        // Create an AVPlayer, passing it the HTTP Live Streaming URL.
        let player = AVPlayer(url: url)

        // Create a new AVPlayerViewController and pass it a reference to the player.
        let playerLayer = AVPlayerLayer(player: player)
        playerLayer.frame = self.view.bounds
        self.view.layer.addSublayer(playerLayer)

        let btn = UIButton(type: .roundedRect)
        btn.backgroundColor = UIColor.yellow
        btn.setTitle("Do stuff 1", for: .normal)
        btn.frame = CGRect(x: 0, y: 330, width: 300, height: 300)
        btn.isUserInteractionEnabled = true
        btn.addTarget( self, action: #selector(self.pressButton(button:)), for: .touchUpInside)
        view.addSubview(btn)
        player.play()
    }

    @objc func pressButton(button: Any) {
        print("PRESSED")
    }
}

但主要的是view.addSubview（btn）。