Ios 图像视图双边框

我正在调用设置UIImageView的函数：

func setupImageView(_ imageView: UIImageView) {}

我想给UIImageView一个图像，绕过它的角，给它两个不同的边界

以下是我目前正在做的事情：

imageView.image = imageConstants.imageThatIsWanted
imageView.clipsToBounds = true
imageView.layer.cornerRadius = imageView.frame.height / 2
imageView.layer.borderWidth = 3.0
imageView.layer.borderColor = UIColor.white.cgColor

在白色边框周围应用第二种边框颜色蓝色的最佳方法是什么

我尝试创建一个子层作为CALayer，并给它一个蓝色边框，但这在图像后面，也在白色边框的内部。我还试着画了一个UIBezierPath，但它也停留在白色边框内

import UIKit

class ViewController: UIViewController {

    @IBOutlet weak var secondView: UIView!
    @IBOutlet weak var imgView: UIImageView!
    override func viewDidLoad() {
        super.viewDidLoad()
        imgView.layer.cornerRadius = imgView.frame.size.height/2
         secondView.layer.cornerRadius = secondView.frame.size.height/2
        imgView.layer.borderWidth = 5.0
        imgView.layer.borderColor = UIColor.red.cgColor
        imgView.clipsToBounds = true
         secondView.clipsToBounds = true
        // Do any additional setup after loading the view, typically from a nib.
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


}

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如果您想减少代码行，可以在图像视图后面添加UIlabel或UIImageview，其大小略大于图像视图，并应用圆角半径（请检查下面的代码）

以编程方式在已拍摄图像视图的背面添加新图像视图

let img = UIImageView(frame: CGRect(x: imgview.frame.origin.x - 2, y: imgview.frame.origin.y - 2, width: imgview.frame.size.width + 4, height: imgview.frame.size.height + 4))
    img.layer.masksToBounds = true
    img.layer.cornerRadius = img.frame.size.width/2
//img.backgroundColor = UIColor.blue // You can also use background color instead of border
img.layer.borderWidth = 5
    img.layer.borderColor = UIColor.blue.cgColor
    self.view.addSubview(img)
    self.view.sendSubview(toBack: img)

我知道这不是合适的解决方案，但我们可以使用它来减少代码行数

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希望它能帮助您

您能将图像视图设置为更大的

ui视图

的子视图吗？一个高度/宽度多6点且有蓝色边框的？

let img = UIImageView(frame: CGRect(x: imgview.frame.origin.x - 2, y: imgview.frame.origin.y - 2, width: imgview.frame.size.width + 4, height: imgview.frame.size.height + 4))
    img.layer.masksToBounds = true
    img.layer.cornerRadius = img.frame.size.width/2
//img.backgroundColor = UIColor.blue // You can also use background color instead of border
img.layer.borderWidth = 5
    img.layer.borderColor = UIColor.blue.cgColor
    self.view.addSubview(img)
    self.view.sendSubview(toBack: img)