Draw a circle and save to UIImage

Question

How to draw a filled circle with kernel graphics and return it as a UIImage?

I want to do something like the following:

+ (UIImage*) circleImageWithRadius:(CGFloat)radius fillColor:(UIColor*)clr;

Answer 1

This should do you most of the way: http://www.codza.com/creating-and-drawing-on-a-new-uiimage

Also see CGContextFillEllipseInRect: http://developer.apple.com/library/mac/#documentation/GraphicsImaging/Reference/CGContext/Reference/reference.html