swiftui 中的播放控件 [英] Playback controls in swiftui

问题描述

尝试使用 AVKit 的 AVPlayer 播放没有播放控件的视频:

Attempting to use AVKit's AVPlayer to play a video without playback controls:

private let player = AVPlayer(url: URL(fileURLWithPath: Bundle.main.path(forResource: "videoToPlay", ofType: "mp4")!))
player.showsPlaybackControls = false

上述结果会导致一条错误消息，声明必须以;"分隔.我也试过:

The above results in an error message that declarations must be separated by ';'. I've also tried:

VideoPlayer(player: player)
    .onAppear {
        player.showsPlaybackControls = false
    }

这会导致不同的错误.

关于使用 swiftui 隐藏播放控件有什么建议吗?

Any advice on hiding playback controls with swiftui?

推荐答案

VideoPlayer 似乎没有任何我可以在文档中找到的方法来控制是否显示播放控件.

VideoPlayer does not appear to have any methods on it that I can find in the documentation to control whether the playback controls are shown.

showPlaybackControls 不起作用，因为 AVPlayer 也没有该属性.

showPlaybackControls doesn't work because AVPlayer doesn't have that property either.

现在看起来你必须做一些事情，比如包装一个 AVPlayerViewController:

It looks like for now you'll have to do something like wrap an AVPlayerViewController:

请注意，这是一个非常有限的示例，并没有考虑到您可能需要考虑的很多情况，例如当 AVPlayerControllerRepresented 重新加载时会发生什么，因为它的父级发生了变化——你会吗?需要使用 updateUIViewController 来更新它的属性吗?您可能还需要一个比我使用的更稳定的解决方案来存储您的 AVPlayer，它也会在父视图更改时重新创建.但是，所有这些都是相对容易解决的架构决策(查看 ObservableObject、StateObject、Equatable 等)

Note that this is a very limited example and doesn't take into account a lot of scenarios you may need to consider, like what happens when AVPlayerControllerRepresented gets reloaded because it's parent changes -- will you need to use updateUIViewController to update its properties? You will also probably need a more stable solution to storing your AVPlayer than what I used, which will also get recreated any time the parent view changes. But, all of these are relatively easily solved architectural decisions (look into ObservableObject, StateObject, Equatable, etc)

struct ContentView: View {
    let player = AVPlayer(url: URL(fileURLWithPath: Bundle.main.path(forResource: "IMG_0226", ofType: "mp4")!))
    var body: some View {
        AVPlayerControllerRepresented(player: player)
            .onAppear {
                player.play()
            }
    }
}

struct AVPlayerControllerRepresented : UIViewControllerRepresentable {
    var player : AVPlayer
    
    func makeUIViewController(context: Context) -> AVPlayerViewController {
        let controller = AVPlayerViewController()
        controller.player = player
        controller.showsPlaybackControls = false
        return controller
    }
    
    func updateUIViewController(_ uiViewController: AVPlayerViewController, context: Context) {
        
    }
}

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