Swift 3: How to create blurred side edges/corners of a UIImageView?

Question

Currently I have a CALayer applied to a UIImageView like so:

let l: CALayer = imageView.layer
l.masksToBounds = true
l.cornerRadius         


        

Answer 1

Base on Vincent Joy post,

Swift 3:

let maskLayer = CAGradientLayer()
maskLayer.frame = yourImageView.bounds
maskLayer.shadowRadius = 5
maskLayer.shadowPath = CGPathCreateWithRoundedRect(CGRectInset(yourImageView.bounds, 5, 5), 10, 10, nil)
maskLayer.shadowOpacity = 1;
maskLayer.shadowOffset = CGSizeZero;
maskLayer.shadowColor = UIColor.whiteColor().CGColor        
yourImageView.layer.mask = maskLayer;

Swift 4:

let maskLayer = CAGradientLayer()
maskLayer.frame = YourImagView.bounds
maskLayer.shadowRadius = 5
maskLayer.shadowPath = CGPath(roundedRect: YourImagView.bounds.insetBy(dx: 5, dy: 5), cornerWidth: 10, cornerHeight: 10, transform: nil)
maskLayer.shadowOpacity = 1;
maskLayer.shadowOffset = CGSize.zero;
maskLayer.shadowColor = UIColor.white.cgColor
YourImagView.layer.mask = maskLayer;

Answer 2

Swift 4

let maskLayer = CAGradientLayer()
maskLayer.frame = yourImageView.bounds
maskLayer.shadowRadius = 5
maskLayer.shadowPath = CGPath(roundedRect: YourImagView.bounds.insetBy(dx: 5, dy: 5), cornerWidth: 10, cornerHeight: 10, transform: nil)
maskLayer.shadowOpacity = 1
maskLayer.shadowOffset = CGSize.zero
maskLayer.shadowColor = UIColor.white.cgColor        
yourImageView.layer.mask = maskLayer