I want to set an image to the button

But every time when I add an image to the button it shows a huge image and the image doesn't fit the button size. Like this: 
I want to set an image to the button

But every time when I add an image to the button it shows a huge image and the image doesn't fit the button size. Like this: 
yourButton.clipsToBounds = true
yourButton.contentMode = .scaleAspectFill
// Use setBackgroundImage or setImage
yourButton.setBackgroundImage(UIImage(named: "yourImage"), for: .normal)