UIImageView的图层边框可见插图 [英] UIImageView's layer border visible inset

问题描述

刚做完：

self.imageView.backgroundColor = color1;
self.imageView.layer.masksToBounds = YES;
self.imageView.layer.borderColor = color1;
self.imageView.layer.borderWidth = 3.0;

以下是问题的屏幕截图：

Here is screenshot of the problem:

我可以看到图片，边界和图像碎片离开边界...

I can see image, borders, and image fragments out of the border…

我该如何解决？

推荐答案

我在图层上使用边框属性并管理了类似的问题通过在顶部添加一个CAShapeLayer来解决它。

我无法告诉你它在旧设备上的表现如何没有用很多动画测试它等等，但我真的怀疑它会慢他们失败了。

I had a similar issue using the border properties on the layer and managed to solve it by adding a CAShapeLayer on top.
I can't tell you how it will behave on older devices as haven't tested it with many animations and so on, but I really doubt it will slow them down.

以下是Swift中的一些代码：

Here is some code in Swift:

    imageView.backgroundColor = UIColor(red: 0.1137, green: 0.2745, blue: 0.4627, alpha: 1.0)
    imageView.layer.masksToBounds = true
    imageView.layer.cornerRadius = imageView.bounds.height / 2.0

    let stroke:CAShapeLayer = CAShapeLayer()
    let rect = imageView.bounds
    let strokePath = UIBezierPath(roundedRect: rect, cornerRadius: imageView.bounds.height / 2.0)

    stroke.path = strokePath.CGPath
    stroke.fillColor = nil
    stroke.lineWidth = 3.0
    stroke.strokeColor = UIColor(red: 0.1137, green: 0.2745, blue: 0.4627, alpha: 1.0).CGColor

    stroke.frame = imageView.bounds
    imageView.layer.insertSublayer(stroke, atIndex: 1)

希望它也适用于你的情况

Hope it will work in your case as well

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