iOS在不重做自动布局的情况下更改UIView类型

class CustomView: UIView {
    override func layoutSubviews() {
        super.layoutSubviews()
        layer.cornerRadius = 10
        layer.shadowColor = UIColor.black.cgColor
        layer.shadowOpacity = 0.5
        layer.shadowOffset = CGSize(width: 2, height: 2)
        layer.shadowRadius = 4
    }
}

let customView = CustomView(frame: originalView.frame)
customView.backgroundColor = originalView.backgroundColor
customView.translatesAutoresizingMaskIntoConstraints = false
originalView.superview?.insertSubview(customView, aboveSubview: originalView)
originalView.removeFromSuperview()

customView.translatesAutoresizingMaskIntoConstraints = originalView.translatesAutoresizingMaskIntoConstraints
customView.topAnchor.constraint(equalTo: originalView.topAnchor).isActive = true
customView.leadingAnchor.constraint(equalTo: originalView.leadingAnchor).isActive = true
customView.trailingAnchor.constraint(equalTo: originalView.trailingAnchor).isActive = true
customView.bottomAnchor.constraint(equalTo: originalView.bottomAnchor).isActive = true

customView.layer.cornerRadius = 20
customView.layer.shadowOffset = CGSize(width: 4, height: 4)