图片圆角

- (UIImage *)imageWithCornerRadius:(CGFloat)radius {

CGRect rect = (CGRect){0.f, 0.f, self.size};

 

UIGraphicsBeginImageContextWithOptions(self.size, NO, UIScreen.mainScreen.scale);

CGContextAddPath(UIGraphicsGetCurrentContext(),

 [UIBezierPath bezierPathWithRoundedRect:rect cornerRadius:radius].CGPath);

CGContextClip(UIGraphicsGetCurrentContext());

 

[self drawInRect:rect];

UIImage *image = UIGraphicsGetImageFromCurrentImageContext();

 

UIGraphicsEndImageContext();

 

return image;

}