Rounded Corners on UIImage

Question

I\'m trying to draw images on the iPhone using with rounded corners, a la the contact images in the Contacts app. I\'ve got code that generally work, but it occasionally cra

Answer 1

I'm gonna go ahead here and actually answer the question in the title.

Try this category.

UIImage+additions.h

#import 

@interface UIImage (additions)
-(UIImage*)makeRoundCornersWithRadius:(const CGFloat)RADIUS;
@end

UIImage+additions.m

#import "UIImage+additions.h"

@implementation UIImage (additions)
-(UIImage*)makeRoundCornersWithRadius:(const CGFloat)RADIUS {
    UIImage *image = self;

    // Begin a new image that will be the new image with the rounded corners
    // (here with the size of an UIImageView)
    UIGraphicsBeginImageContextWithOptions(image.size, NO, image.scale);

    const CGRect RECT = CGRectMake(0, 0, image.size.width, image.size.height);
    // Add a clip before drawing anything, in the shape of an rounded rect
    [[UIBezierPath bezierPathWithRoundedRect:RECT cornerRadius:RADIUS] addClip];
    // Draw your image
    [image drawInRect:RECT];

    // Get the image, here setting the UIImageView image
    //imageView.image
    UIImage* imageNew = UIGraphicsGetImageFromCurrentImageContext();

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

    return imageNew;
}
@end