ios - ImageView 双边框
<p><p>我正在调用一个设置 UIImageView 的函数:</p>
<pre><code>func setupImageView(_ imageView: UIImageView) {}
</code></pre>
<p>我想给那个 UIImageView 一个图像，把它的角弄圆，并给它两个不同的边框。</p>
<p>这是我目前正在做的事情:</p>
<pre><code>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
</code></pre>
<p>在白色边框周围应用第二个蓝色边框颜色的最佳方法是什么？ </p>
<p>我尝试创建一个子图层作为 CALayer 并给它一个蓝色边框，但这在图像后面，也在白色边框内。我还尝试绘制 UIBezierPath，但它也位于白色边框内。</p></p>
<br><hr><h1><strong>Best Answer-推荐答案</ strong></h1><br>
<p><pre><code>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.
}
}
</code></pre>
<p> <a href="/image/vygRj.png" rel="noreferrer noopener nofollow"><img src="/image/vygRj.png" alt="enter image description here"/></a> </p></p>
<p style="font-size: 20px;">关于ios -ImageView 双边框，我们在Stack Overflow上找到一个类似的问题：
<a href="https://stackoverflow.com/questions/47703742/" rel="noreferrer noopener nofollow" style="color: red;">
https://stackoverflow.com/questions/47703742/
</a>
</p>
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