How do I prevent a button's background image from stretching?

Question

I\'m allocating a UIButtonTypeCustom UIButton to a UIView with a background image that is smaller than the button\'s frame. Reason why the image is smaller is because I\'m tryin

Answer 1

It is simple as:

    ImageBn.imageView?.contentMode = .scaleAspectFit
    ImageBn.setImage(chosenImage, for: .normal)