UIImage with smooth rounded corners in quartz

Question

I am just testing the following code to round corners on UIImage:

- (UIImage *)makeRoundedImage:(UIImage *)image radius:(float)radius;
{
    CALayer *imageLa         


        

Answer 1

Here is UIImage category:

- (UIImage *) imageWithRoundedCornersRadius: (float) radius
{
    // Begin a new image that will be the new image with the rounded corners
    UIGraphicsBeginImageContextWithOptions(self.size, NO, 0);

    // Add a clip before drawing anything, in the shape of an rounded rect
    CGRect rect = CGRectMake(0, 0, self.size.width, self.size.height);
    [[UIBezierPath bezierPathWithRoundedRect:rect cornerRadius:radius] addClip];

    // Draw your image
    [self drawInRect:rect];

    // Get the image, here setting the UIImageView image
    UIImage *roundedImage = UIGraphicsGetImageFromCurrentImageContext();

    // Lets forget about that we were drawing
    UIGraphicsEndImageContext();

    return roundedImage;
}