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ios - 向 UIImageView 添加填充和边框

转载 作者:可可西里 更新时间:2023-11-01 03:39:35 25 4
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如何在 UIImageView 和它的边框之间添加填充?

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

像这样:

desired result

最佳答案

根据 this link

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
}
}

关于ios - 向 UIImageView 添加填充和边框,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/46437504/

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