Ios tableView滚动，然后progressView角半径自动更改

我在表格视图中添加进度视图。我滚动uitableView，然后轨迹角半径不显示如何设置其角半径。 甚至我还添加了层角半径

 progressBar.layer.sublayers![1].cornerRadius = 8
 progressBar.subviews[1].clipsToBounds = true

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请使用以下swift 5.0扩展设置角半径

extension UIView{
    func setCorner(withRadius:Int, borderWidth:Int = 0, color: UIColor = .clear){
        self.layer.cornerRadius = radius
        self.layer.borderColor = color
        self.layer.borderWidth = borderWidth
        self.clipsToBounds = true
    }
}

并将其用作

progressBar.setCorner(withRadius: 8)//what ever radius you want to set.