progressView没有使用AVAudioPlayer迅速按照音频文件的持续时间移动

Question

我正在尝试这段代码，但是progressView的移动速度并不慢，并不会根据文件的持续时间来

请告诉我如何根据音频文件的持续时间移动progressView。我正在updateProgress函数中更新progressView。我已经尝试了所有解决方案，但没有根据需要获得输出。

func updateProgress(){
    progressView.setProgress(duration, animated: true)
 }
        var path : String?

        path = Bundle.main.path(forResource: "cartoon001", ofType: "wav")

        let url = URL(fileURLWithPath: path!)

        //Audios/number\(fileNumber)
        do {
            player = try AVAudioPlayer(contentsOf: url)

            if player != nil {
                player!.delegate = self
                player!.pan = channelValue
                player!.volume = 1

                if micLocation == .front {
                    player!.numberOfLoops = 5
                    duration = Float((player?.duration)! * 5)
                }
                else {
                    player!.numberOfLoops = 3
                    duration = Float((player?.duration)! * 3)
                }

                player!.prepareToPlay()
                player!.play()
                //progressView.progress = Float(player?.duration)

            }
        }