Programmatically adding a shadow to a UIButton label

Question

I\'m trying to add a 1px black drop shadow to a button label with no luck. I\'ve tried this:self.setTitleShadowOffset = CGSizeMake(0, -1); but I get:

Answer 1

for Swift 3:

  button.setTitleShadowColor(UIColor.red, for: .normal)
  button.titleLabel?.shadowOffset = CGSize(width: 2, height: 2)