iOS 清理圆角的个人资料图片 [英] iOS Clean corners for rounded profile image

问题描述

所以我遵循了 AppCoda 关于圆角的教程个人资料图片，它工作正常，除了一件事.无论图像被圆角化，图像中都会出现一点渗色(尤其是在使用白色边框的情况下).

So I followed an AppCoda tutorial on rounding the corners of a profile image, and it worked fine, except for one thing. Wherever the image was rounded, there is a bit of bleed-through from the image (especially if a white border is used).

self.imageview.image = image
self.imageview.layer.cornerRadius = 10.0
self.imageview.layer.borderWidth = 3.0
self.imageview.layer.borderColor = UIColor.whiteColor().CGColor
self.imageview.clipsToBounds = true

推荐答案

如果需要，您还可以添加一个稍微嵌入的蒙版:

You can also add a mask which is inset a little, if you want:

let path = UIBezierPath(roundedRect: CGRectInset(imageView.bounds, 0.5, 0.5), cornerRadius: 10.0)
let mask = CAShapeLayer()
mask.path = path.CGPath
imageview.layer.mask = mask

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