Render UIView to UIImage

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There’s a simple way to render a UIView into a UIImage: use the view’s layer, and render it into a bitmap graphic context. Here is the code, phrased as a UIView category:

#import "UIView+RenderUIImage.h"
#import 

@implementation UIView (RenderUIImage)

- (UIImage *)renderAsImage
{
    // setup context
    UIGraphicsBeginImageContextWithOptions(self.bounds.size, NO, 0.0f); // use same scale factor as device
    CGContextRef c = UIGraphicsGetCurrentContext();

    // render view
    [self.layer renderInContext:c];

    // get reslting image
    UIImage *result = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return result;
}

@end

Just remember to link the QuartzCore.framework and you’re good to go.

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