How to capture UIView to UIImage without loss of quality on retina display

Switch from use of UIGraphicsBeginImageContext to UIGraphicsBeginImageContextWithOptions (as documented on this page). Pass 0.0 for scale (the third argument) and you’ll get a context with a scale factor equal to that of the screen. UIGraphicsBeginImageContext uses a fixed scale factor of 1.0, so you’re actually getting exactly the same image on an iPhone 4 as … Read more