UIImage size in pixels

Question

Can I get the pixel size for a UIImage if I just multiply the image.size with the image.scale ? Is it the same as doing this:

   guard let cgImage = image.CGImage else{
        return nil
    }
    let width = CGImageGetWidth(cgImage)
    let height = CGImageGetHeight(cgImage)

Answer 1

Yes.

CGImageGetWidth and CGImageGetHeight will return the same size (in pixels) as returned by image.size * image.scale.