iOS 图片切圆角的另外两种方式
1:
UIBezierPath * maskPath = [UIBezierPath bezierPathWithRoundedRect:imageView.bounds byRoundingCorners:UIRectCornerAllCorners cornerRadii:imageView.bounds.size];
CAShapeLayer * maskLayer = [[CAShapeLayer alloc]init];
maskLayer.frame = imageView.bounds;
maskLayer.path = maskPath.CGPath;
imageView.layer.mask = maskLayer;
2:
UIGraphicsBeginImageContextWithOptions(imageView.bounds.size, NO, 1.0);
[[UIBezierPath bezierPathWithRoundedRect:imageView.bounds cornerRadius:imageView.frame.size.width]addClip];
[imageView drawRect:imageView.bounds];
imageView.image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
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