無法使用自定義按鈕暫停 AVPlayer

Question

我正在嘗試在 swift 中進行詳細查看，但我無法找到使用自定義按鈕暫停視頻的方法。 而且當我 go 回到我的列表時，我仍然可以聽到在后台播放的視頻。 這是我的 AVPlayer 和按鈕的代碼。

import SwiftUI
import AVKit

struct Workdetail: View {

    var work: WorkoutDe
    @State var player = AVPlayer()
    @State var isplaying = true
    
    var body: some View {
        VStack {
            ZStack {
                VideoPlayer(player: $player, work: work)
                    .frame(height: UIScreen.main.bounds.height / 3.5)
     
                Butto(player: $player, isplaying: $isplaying)
            }
            Spacer()
        }
    }
}

struct Butto : View {
                
    @Binding var player : AVPlayer
    @Binding var isplaying : Bool
               
    var body : some View {
         Button(action: {
             if self.isplaying {
                 self.player.pause()
                 self.isplaying = false
             } else {
                 self.player.play()
                 self.isplaying = true
             }
         }) {
             Image(systemName: self.isplaying ? "pause.fill" : "play.fill")
                 .font(.title)
                 .foregroundColor(.white)
                 .padding(20)
         }
    }       
}

struct VideoPlayer : UIViewControllerRepresentable {
            
    var work : WorkoutDe
    @Binding var player : AVPlayer
    var playerLayer = AVPlayerLayer()
        
    public func makeUIViewController(context: Context) -> AVPlayerViewController {
        player = AVPlayer(url: URL(fileURLWithPath: String(work.url)))
        
        let controller = AVPlayerViewController()
        controller.player = player
        controller.videoGravity = .resizeAspectFill

        player.actionAtItemEnd = .none
        NotificationCenter.default.addObserver(forName: .AVPlayerItemDidPlayToEndTime, object: player.currentItem, queue: .main) { _ in
            player.seek(to: CMTime.zero)
            player.play()
        }
        player.play()
        
        return controller
    }
    
    func rewindVideo(notification: Notification) {
        playerLayer.player?.seek(to: .zero)
    }
    
    public func updateUIViewController(_ uiViewController: AVPlayerViewController, context: UIViewControllerRepresentableContext<VideoPlayer>) {
          
    }
}

AVPlayer 可以工作，但是當我按下按鈕時沒有任何反應。 按鈕的圖像發生變化，但視頻不會停止播放。 有人可以向我解釋如何綁定按鈕，因為我無法弄清楚

Answer 1

您在子視圖中與不同的玩家一起工作，嘗試

 public func makeUIViewController(context: Context) -> AVPlayerViewController {

    let player = AVPlayer(url: URL(fileURLWithPath: String(work.url)))
    let controller = AVPlayerViewController()

    DispatchQueue.main.async {
       self.player = player
    }

綁定應該更新父 state，這將更新按鈕，所以它應該工作。