Saving UIView contents in iOS 4 with real size of the images inside (i.e. scale contentes up for save)

Question

I have an UIView with many UIImageViews as subviews. The app runs on iOS4 and I use images with retina display resolution (i.e. the images load with scale = 2)

I wa

Answer 1

Import QuartzCore (Click main project, Build Phases, import) and where you need it add:

#import 

My imageViews are properties, if your are not, ignore the .self and pass the imageViews into the function as parameters, then call renderInContext on the two images in a new UIGraphicsCurrentContext

- (UIImage *)saveImage
{
    UIGraphicsBeginImageContextWithOptions(self.mainImage.bounds.size, NO, 0.0);

    [self.backgroundImage.layer renderInContext:UIGraphicsGetCurrentContext()];
    [self.mainImage.layer renderInContext:UIGraphicsGetCurrentContext()];

    UIImage *savedImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return savedImage;
}