Creating a shadow for a UIImageView that has rounded corners?

Question

I am trying to create an ImageView that has rounded corners and a shadow to give it some depth. I was able to create a shadow for the UIImageView, but whenever I added the code to also make it have rounded corners, it only had rounded corners with no shadow. I have an IBOutlet named myImage, and it is inside of the viewDidLoad function. Does anybody have any ideas on how to make it work? What am I doing wrong?

override func viewDidLoad() {
    super.ViewDidLoad() 
    myImage.layer.shadowColor = UIColor.black.cgColor
    myImage.layer.shadowOpacity = 1 
    myImage.layer.shadowOffset = CGSize.zero
    myImage.layer.shadowRadius = 10
    myImage.layer.shadowPath = UIBezierPath(rect: myImage.bounds).cgPath
    myImage.layer.shouldRasterize = false
    myImage.layer.cornerRadius = 10
    myImage.clipsToBounds = true
}

Answer 1

If you set clipsToBounds to true, this will round the corners but prevent the shadow from appearing. In order to resolve this, you can create two views. The container view should have the shadow, and its subview should have the rounded corners.

The container view has clipsToBounds set to false, and has the shadow properties applied. If you want the shadow to be rounded as well, use the UIBezierPath constructor that takes in a roundedRect and cornerRadius.

let outerView = UIView(frame: CGRect(x: 0, y: 0, width: 100, height: 100))
outerView.clipsToBounds = false
outerView.layer.shadowColor = UIColor.black.cgColor
outerView.layer.shadowOpacity = 1
outerView.layer.shadowOffset = CGSize.zero
outerView.layer.shadowRadius = 10
outerView.layer.shadowPath = UIBezierPath(roundedRect: outerView.bounds, cornerRadius: 10).cgPath

Next, set the image view (or any other type of UIView) to be the same size of the container view, set clipsToBounds to true, and give it a cornerRadius.

let myImage = UIImageView(frame: outerView.bounds)
myImage.clipsToBounds = true
myImage.layer.cornerRadius = 10

Finally, remember to make the image view a subview of the container view.

outerView.addSubview(myImage)

The result should look something like this: