iOS - 在 AVPlayerViewController 之上添加控件

Question

我有一个 AVPlayerViewController 的子类，我想在其上添加自定义控件。我成功地将自定义控件添加到 AVPlayerViewController 之上。然而，这些控件只能在短时间内做出响应。几秒钟后，单击任何按钮都不会触发 touchUpInside 事件。

下面是我正在使用的代码:

class LSPlayerViewController : AVPlayerViewController {

private var btnPlay : UIButton!

func addControls() {
    self.showsPlaybackControls = false
    
    //PLAY BUTTON
    let btnPlayRect = CGRect(x: 0, y: 0, width: 19, height: 25)
    btnPlay = UIButton(frame: btnPlayRect)
    btnPlay.center = self.view.center
    btnPlay.setImage(#imageLiteral(resourceName: "PauseIcon"), for: .normal)
    btnPlay.addTarget(self, action: #selector(self.playButtonTapped(sender:)), for: .touchUpInside)
    btnPlay.alpha = 0
    btnPlay.isUserInteractionEnabled = true
    self.view.addSubview(btnPlay)
}

func playButtonTapped(sender: UIButton!) {
    if sender.isPlayIconOn == true {
        sender.setImage(#imageLiteral(resourceName: "PauseIcon"), for: .normal)
        self.player?.play()
    } else {
        sender.setImage(#imageLiteral(resourceName: "PlayIcon"), for: .normal)
        self.player?.pause()
    }
}

Answer 1

我通过在 addSubview 函数旁边添加以下两行解决了该问题:

self.addChildViewController(playerViewController)
playerView.addSubview(playerViewController.view)
playerViewController.didMove(toParentViewController: self)