Cropping an UIImage

Question

I\'ve got some code that resizes an image so I can get a scaled chunk of the center of the image - I use this to take a UIImage and return a small, square repre

Answer 1

swift3

extension UIImage {
    func crop(rect: CGRect) -> UIImage? {
        var scaledRect = rect
        scaledRect.origin.x *= scale
        scaledRect.origin.y *= scale
        scaledRect.size.width *= scale
        scaledRect.size.height *= scale
        guard let imageRef: CGImage = cgImage?.cropping(to: scaledRect) else {
            return nil
        }
        return UIImage(cgImage: imageRef, scale: scale, orientation: imageOrientation)
    }
}