image disappears when styling class to make a round image

Question

class RoundImage: UIImageView {

    override func awakeFromNib() {
        super.awakeFromNib()
        setupView()
    }

     ...

    func setupView() {
        self         


        

Answer 1

When this code gets run the view hasn't been sized yet, so the width is incorrect. Try putting a listener on frame:

override var frame : CGRect {
    didSet {
        layer.cornerRadius = frame.size.width / 2
    }
}

Answer 2

I faced with this problem a few days ago. You should add layoutIfNeeded() before layer modifications.

In your case:

func setupView() {
        self.layoutIfNeeded()
        self.layer.borderWidth = borderWidth
        self.layer.borderColor = borderColor
        self.clipsToBounds = clip
        self.layer.cornerRadius = self.frame.size.width / 2
 }