Swift button created programmatically needs to have 2 lines for title - ios

Question

I am creating buttons programmatically like this:
let stage: Stages = stagesObjectsArray[i]
let button = UIButton(type: .Custom) as UIButton
button.setTitle(stage.name, forState: .Normal)
button.sizeToFit()
button.frame.origin = buttonPosition
let buttonIncrement = button.frame.size.width + padding.width
buttonPosition.x = buttonPosition.x + buttonIncrement
button.backgroundColor = UIColor.blackColor()
button.titleLabel?.font = UIFont(name: "", size: widthOfScreen/3.2)
button.setTitleColor(UIColor.darkGrayColor(), forState: UIControlState.Normal)
button.tag = stage.id
button.addTarget(self, action: #selector(GamesAllViewController.buttonPressedTopMenu(_:)), forControlEvents: .TouchUpInside)
buttonView.addSubview(button)
What I want to implement and can't figure out how is to have the title of the button on 2 rows if the width of the button becomes too big(for instance more than half the width of the screen).
I have found some questions on this topic, but they all assume they know the title of the button, while in my case it is dynamic and I do not know what it might be.
I have tried this code, but with no change:
button.titleLabel!.lineBreakMode = NSLineBreakMode.ByWordWrapping
button.titleLabel!.numberOfLines = 2
Can somebody help?

Answer 1

You can use "\n" and NoOFLines to 0
try this code
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(true)
let button = UIButton(type: .Custom) as UIButton
button.setTitle("Line 1\nLine 2", forState: .Normal)
button.sizeToFit()
button.titleLabel!.lineBreakMode = NSLineBreakMode.ByWordWrapping
button.titleLabel!.numberOfLines = 0
button.titleLabel!.textAlignment = NSTextAlignment.Center
button.frame = CGRectMake(20, 100, 280, 40)
button.titleLabel?.textColor = UIColor.redColor()
button.backgroundColor = UIColor.blackColor()
button.addTarget(self, action: "methodName:", forControlEvents: .TouchUpInside)
self.view.addSubview(button)
}