Problem with create UITableViewCell custom cell with progress view each cell

Question

Image 1

After scroll down and up. progress bar blank ??

Image 2

1. Custom cell for each cell and download via urlsession.

   ## custom cell
   class chattingCustomCell: UITableViewCell {
   
   
   
   var downloadCustomTask:URLSessionDownloadTask!
    lazy var progressView : UIProgressView = {
   
    let progress = UIProgressView.init()
    progress.tintColor = .red
    return progress
    }()
   
   
   
    lazy var lbProgressView : UILabel = {
   
    let lb = UILabel.init()
    lb.textAlignment = .center
    return lb
     }()
   
    func urlSession(_ session: URLSession, downloadTask: URLSessionDownloadTask, didWriteData bytesWritten: Int64, totalBytesWritten: Int64, totalBytesExpectedToWrite: Int64) {
    {
            DispatchQueue.main.async{
   
                if totalBytesExpectedToWrite > 0 {
                    let progress = Float(totalBytesWritten) / Float(totalBytesExpectedToWrite)
   
                    self.progressView.progress = progress
                    self.lbProgressView.text = "\(Float(totalBytesWritten)) / \(Float(totalBytesExpectedToWrite))"
   
                    //            DispatchQueue.main.async {
   
                    self.appDelegate.function.loglog(methodDesc: "\(NSStringFromClass(self.classForCoder))", str: "Video download progress : \(progress) -> \(Float(totalBytesWritten))/ \(Float(totalBytesExpectedToWrite))")
   
                    //                self.Progress.progress=progress
   
                    if(progress == 1)
                    {
   
                        self.appDelegate.function.loglog(methodDesc: "\(NSStringFromClass(self.classForCoder))", str: "Progress : done")
   
   
   
                    }
                    //            }
   
                    //            debugPrint("Progress \(downloadTask) \(progress)")
                }
            }
        }
   
   }
    .....
   
   
   
     override func setSelected(_ selected: Bool, animated: Bool) {
        super.setSelected(selected, animated: animated)
   
   
    progressView = UIProgressView.init(frame: CGRect(x: (imageFrame.frame.size.width/2)-(150/2), y: (imageFrame.frame.size.height/2), width: 150, height: 10))
                        progressView.backgroundColor = UIColor.red
                        progressView.layer.zPosition = 10
                        progressView.progress = 0
                        self.imageFrame.addSubview(progressView)
                        lbProgressView = UILabel.init(frame: CGRect(x: (imageFrame.frame.size.width/2)-(150/2), y: (imageFrame.frame.size.height/2)+10, width: 150, height: 10))
                        lbProgressView.font = UIFont.systemFont(ofSize: 10)
                        lbProgressView.textAlignment = .center
                        self.imageFrame.addSubview(lbProgressView)
   
   
    }
   

2. if don't scroll screen it's work perfect for download video each cell with display progress status.

3. when scroll down and scroll up screen. progress view it's blank but urlsession still downloading.

how to fixed it. Thank you for advance.