UIImageViewにパディングとボーダーを追加する

Question

UIImageViewとその境界線の間にパディングを追加するにはどうすればよいですか？

    Img.layer.cornerRadius = Img.bounds.width / 2
    Img.layer.borderWidth = 2
    Img.layer.borderColor = UIColor.blue.cgColor
    Img.clipsToBounds = true

このような：

Answer 1

このリンク のとおり

class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        let image = UIImage(named: "imagename")!
        let imageView = UIImageView(image: image.imageWithInsets(insets: UIEdgeInsetsMake(30, 30, 30, 30)))
        imageView.frame = CGRect(x: 0, y: 0, width: 300, height: 400)
        imageView.backgroundColor = UIColor.gray
        imageView.layer.borderWidth = 2
        imageView.layer.borderColor = UIColor.blue.cgColor
        view.addSubview(imageView)
    }
}
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
    }
}