UIButton title not displaying

In case you subclass UIButton and override its layoutSubviews(), make sure you call super.layoutSubviews() inside

For me the issue was that I wasn't using the setter methods.

I was doing notificationsButton.titleLabel?.text = "x" instead of notificationsButton.setTitle("x", forState: UIControlState.Normal)

I actually figured out the issue.

In Swift the title of UIButton is white.

I changed the background color of parent View, now it is showing.

self.view.backgroundColor = UIColor.black