最简单的方法是使用AVFoundation框架的AVPlayer。使用您的URL示例化playerItem并将其传递给播放器。下面的代码将为您做。

let urlString = "your url string"
    guard let url = URL.init(string: urlString)
        else {
            return
    }
    let playerItem = AVPlayerItem.init(url: url)
    player = AVPlayer.init(playerItem: playerItem)
    player.play()

考虑AVPlayer来满足您的需求，类似于以下内容：

import AVKit
var player: AVPlayer?
func audioPlayer() {
    do {
         try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback)
         player = AVPlayer(url: URL.init(string: "your url")!)

          //This is for a player screen, if you don't want to show a player screen you comment this part

          let controller = AVPlayerViewController()
          controller.player = player
          controller.showsPlaybackControls = false
          self.addChildViewController(controller)
          let screenSize = UIScreen.main.bounds.size
          let videoFrame = CGRect(x: 0, y: 130, width: screenSize.width, height: (screenSize.height - 130) / 2)
          controller.view.frame = videoFrame
          self.view.addSubview(controller.view)
          // till here

          player?.play()
        } catch {
        }
}

更多信息请阅读：https://developer.apple.com/documentation/avfoundation/avplayer