Question

How to flip the UIImage horizontally, I found UIImageOrientationUpMirrored enumeration value in the UIImage class reference, how to make use of this property to flip UIImage.

Answer 1

Objective-C

UIImage* sourceImage = [UIImage imageNamed:@"whatever.png"];

UIImage* flippedImage = [UIImage imageWithCGImage:sourceImage.CGImage 
                                            scale:sourceImage.scale
                                      orientation:UIImageOrientationUpMirrored];

Swift

let flippedImage = myImage.withHorizontallyFlippedOrientation()