检测用户何时将 AVPlayer 静音

Question

我正在使用 AVPlayer 和 AVPlayerItem 播放现场直播 stream。 有没有办法知道用户在播放视频时是否静音/取消静音

Answer 1

您可以检查 AVPlayer 的isMuted值。

文档：

https://developer.apple.com/documentation/avfoundation/avplayer/1387544-ismuted

Answer 2

您可以结合使用KVO和Combine来观察isMuted属性的变化：

let player: AVPlayer
private var cancellables = Set<AnyCancellable>()

//...

player
    .publisher(for: \.isMuted)
    .sink { isMuted in
        // here you can handle the fact the the user has muted or unmuted the player  
     }
     .store(in: &cancellables)