scale Image in an UIButton to AspectFit?
I had the same problem. Just set the ContentMode of the ImageView that is inside the UIButton.
[[self.itemImageButton imageView] setContentMode: UIViewContentModeScaleAspectFit];
[self.itemImageButton setImage:[UIImage imageNamed:stretchImage] forState:UIControlStateNormal];
Hope this helps.
None of the answers here really worked for me, I solved the problem with the following code:
button.contentMode = UIViewContentModeScaleToFill;
button.contentHorizontalAlignment = UIControlContentHorizontalAlignmentFill;
button.contentVerticalAlignment = UIControlContentVerticalAlignmentFill;
You can do this in the Interface Builder as well.