下面的代码块适用于 iOS 但不适用于 macOS

问题描述

当您测试代码时，您会看到 layoutSubviews 代码块失败。我该如何解决这个问题？

我不认为这是视频播放问题。

此代码在移动设备上运行良好，但不适用于 macOS 应用。

您可以通过复制粘贴代码自行测试。

视频播放器代码：

import AVFoundation
    struct LLVideoPlayerProvider: NSViewRepresentable {
        
        @Binding var url: URL
        
        @Binding var playerStatus: PlayerStatus
        
        func makeNSView(context: Context) -> some NSView {
            return LLVideoUIView(playerStatus: playerStatus,url: url,frame: .zero)
        }
        
        func updateNSView(_ nsView: NSViewType,context: Context) {
            
        }
    }
    
    class LLVideoUIView: NSView {
        private var playerLayer = AVPlayerLayer()
        
        var url: URL
        
        var playerStatus: PlayerStatus
        
        init(playerStatus: PlayerStatus,url: URL,frame: CGRect) {
           
            self.url = url
            
            self.playerStatus = playerStatus
            super.init(frame: frame)
            providerLLPlayer(playerLayer: playerLayer,videoURL: url,playerStatus: playerStatus)
        }
        
        required init?(coder: NSCoder) {
            fatalError("init(coder:) has not been implemented")
        }
        
        
        func providerLLPlayer(playerLayer: AVPlayerLayer,videoURL: URL,playerStatus: PlayerStatus) {
            let videoURL = videoURL
            let playerItem = AVPlayerItem(url: videoURL)
            
            let player = AVPlayer(playerItem: playerItem)
            playerLayer.player = player
            playerLayer.videoGravity = .resizeAspectFill
            layer?.addSublayer(playerLayer)
            
            player.actionAtItemEnd = .none
            NotificationCenter.default.addobserver(self,selector: #selector(rewindVideo(notification:)),name: .AVPlayerItemDidplayToEndTime,object: player.currentItem)
            
            
            switch playerStatus {
            
            case .start:
                return player.play()
            case .end:
                return player.pause()
            }
        }
        
        @objc
        func rewindVideo(notification: Notification) {
    
            playerLayer.player?.seek(to: .zero)
            
        }
        
        
        
        override func layoutSubviews() {
            super.frame = bounds
            playerLayer.frame = bounds
        }
        
        
    }
    
    enum PlayerStatus {
        case start
        case end
    }

使用视频播放器

LLVideoPlayerProvider(url: .constant(URL(fileURLWithPath: Bundle.main.path(forResource: "Test",ofType: "mp4")!)),playerStatus: .constant(.start))

解决方法

暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！

如果你已经找到好的解决方法，欢迎将解决方案带上本链接一起发送给小编。

小编邮箱:dio#foxmail.com (将#修改为@）