Custom UIImageView Border - swift

Question

I'm trying to make a border like this:
With this code:
self.slot1.layer.cornerRadius = self.slot1.bounds.height / 2
self.slot1.layer.borderWidth = 1.5
self.slot1.layer.borderColor = UIColor.orange.cgColor
It produces:
How can i add a "spacing" between the border and the actual image?

Answer 1

You can achieve this using below extension
extension UIImage {
func imageWithInsets(insets: UIEdgeInsets) -> UIImage? {
UIGraphicsBeginImageContextWithOptions(
CGSize(width: self.size.width + insets.left + insets.right,
height: self.size.height + insets.top + insets.bottom), false, self.scale)
let _ = UIGraphicsGetCurrentContext()
let origin = CGPoint(x: insets.left, y: insets.top)
self.draw(at: origin)
let imageWithInsets = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return imageWithInsets
}
}
Use below code to add space between image and border, i add here 20 you can give your own space
self.slot1.layer.cornerRadius = self.slot1.bounds.height / 2
self.slot1.layer.borderWidth = 1.5
self.slot1.layer.borderColor = UIColor.orange.cgColor
let image = self.slot1.image?.imageWithInsets(insets: UIEdgeInsets(top: 20, left: 20, bottom: 20, right: 20))
self.slot1.image = image
Hope this help!

Answer 2

Instead of trying to make space in between, take one UIView inside that put your UIImageView. UIImageView should have less width and height, then add corner radius to both but add border color to UIVIew only.
Your UI should be like this :

Answer 3

Run in playground
import PlaygroundSupport
import UIKit
let iv = UIImageView(frame: CGRect(x: 0.0, y: 0.0, width: 200, height: 200))
PlaygroundPage.current.liveView = iv
iv.backgroundColor = .blue
iv.layer.cornerRadius = 100
iv.layer.borderColor = UIColor.red.cgColor
iv.layer.borderWidth = 5
iv.layer.sublayers?.count
let layer2 = CAShapeLayer()
let newFrame = iv.bounds.insetBy(dx: 7, dy: 7)
layer2.path = UIBezierPath(roundedRect: newFrame, cornerRadius: newFrame.height / 2).cgPath
layer2.frame = iv.bounds
layer2.lineWidth = 5
layer2.strokeColor = UIColor.yellow.cgColor
layer2.fillColor = UIColor.clear.cgColor
iv.layer.addSublayer(layer2)