I have @1x, @2x, and @3x image, but when I change the image of the button, the image does not fill the size of the button, instead it's really small. Why is this happening? How do I fix it? Any help is appreciated.
self.reg.setImage(UIImage(named: "regButton.png"), forState: UIControlState.Normal)
self.in.setImage(UIImage(named: "inStart.png"), forState: UIControlState.Normal)