UIImagePNGRepresentation issues? / Images rotated by 90 degrees

Question

I want to load images from UIImagePickerController, then save the selected photo to my app\'s document directory.

UIImage *image = [info objectForKey:UIImage         


        

Answer 1

Stefan's answer updated for Swift 4:

func rotateImage(image: UIImage) -> UIImage {
        if (image.imageOrientation == UIImage.Orientation.up) {
            return image
        }
        UIGraphicsBeginImageContext(image.size)
        image.draw(in: CGRect(origin: .zero, size: image.size))
        let copy = UIGraphicsGetImageFromCurrentImageContext()
        UIGraphicsEndImageContext()

        return copy!
    }

And then:

var originalImage = yourImage.image!
image = rotateImage(image: originalImage)