Why does a custom UIButton image does not resize i

Question

Why does a custom UIButton image not resize with the button?

I set its view mode to Scale to Fill in Interface Builder, but unlike a UIImageView image, it doesn't respect that setting.

Am I looking in the wrong place or is it not possible?

Answer 1

Remember to set Control Alignment settings for the button

Answer 2

Try setting the Clip subviews property in Interface Builder to true.

Hope that helps.

Answer 3

The best solution I found so far in Swift 2.1 is the following:

self.imageButton.imageView?.clipsToBounds = true
self.imageButton.imageView?.contentMode = UIViewContentMode.ScaleAspectFit

This will scale the image so it has an aspect fit in the imageView.