What is the best way to create a shadow behind a UIImageView

Question

I have a UIImageView that I want to add a shadow behind. I wish that apple had that as a property but they have to make lots of things hard for us programmers so I need to a

Answer 1

Swift solution with extension. Subclassing is not required. Call myImage.addShadow() from viewDidLoad(). This should work for UIView and UIImageView.

extension UIView {

    func addShadow() {
        layer.shadowColor = UIColor.black.cgColor
        layer.shadowOffset = CGSize(width: 0, height: 0)
        layer.shadowOpacity = 0.5
        layer.shadowRadius = 5
        clipsToBounds = false
    }
}