iosuiimageuiimageorientation

How to flip UIImage horizontally?

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.

Solution

  • Objective-C

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

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

    Swift

    let flippedImage = myImage.withHorizontallyFlippedOrientation()