How to save a png image to camera roll?

Question

I'd like to save screenshots from my game to camera roll. Right now I'm using UIImageWriteToSavedPhotosAlbum which saves the image in jpg format with way too much ugly jpg artifacts. Is there a way to save an UIImage in png format to camera roll?

Answer 1

This tells how to represent a UIImage as a jpg or png: Save UIImage Object as PNG or JPEG File