IOS: create a UIImage or UIImageView with rounded corners

Question

Is it possible create an UIImage or an UIImageView with rounded corners? Because I want take an UIImage and show it inside an UI

Answer 1

Setting cornerRadius and clipsToBounds is the right way to do this. However if the view's size changes, the radius will not update. In order to get proper resizing and animation behavior, you need to create a UIImageView subclass.

class RoundImageView: UIImageView {
    override var bounds: CGRect {
        get {
            return super.bounds
        }
        set {
            super.bounds = newValue
            setNeedsLayout()
        }
    }

    override func layoutSubviews() {
        super.layoutSubviews()
        layer.cornerRadius = bounds.width / 2.0
        clipsToBounds = true
    }
}