UILabel does not appear on SKScene

Question

I am trying to create a label on my SKScene but it is not appearing. I don't know what is wrong. The code seems perfectly fine:

class end: SKScene {

    var label = UILabel()

    override func didMoveToView(view: SKView) {
        scene?.backgroundColor = UIColor(red: CGFloat(59.0/255.0), green: CGFloat(89.0/255.0), blue: CGFloat(152.0/255.0), alpha: CGFloat(1.0))

         label.text = "Game Over!"
         label.backgroundColor = UIColor.blackColor()
         label = UILabel(frame: CGRect(x: 0, y: 0, width: view.frame.width/3, height: 30))
         label.center = CGPoint(x: view.frame.size.width / 2, y: view.frame.size.width/7)
         label.textColor = UIColor.whiteColor()
         self.view?.addSubview(label)      
    }
}

how do you know it is not appearing? first, what is .center? That is not a normal UILabel property from what I can tell — Knight0fDragon, Aug 08 '16 at 17:26
n/m center is a member of UIVIew, so the issue now is what are the coordinates. I am going to assume you are using auto layout, and at the time that didMoveToView is called, you are working in default coordinates, then autolayout takes over moving the view to outside of some forseeable scope perhaps — Knight0fDragon, Aug 08 '16 at 17:32

Nirav D · Answer 1 · 2016-08-08T10:22:00.123

1

The problem is you have set textColor and backgroundColor both whiteColor(), change any one will show your text properly.

Edit:

I think you want to add the label inside view that you are passing as a parameter than use view.addSubview(label) instead of self.view?.addSubview(label).

edited Aug 08 '16 at 10:22

answered Aug 08 '16 at 10:04

Nirav D

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i changed the background to black but it's still not showing. even if i hadn't changed, the label of white color should have shown on the screen but it doesn't show at all – Osaama Shehzad Aug 08 '16 at 10:08
@NDoc self.view is populated at the time of didMoveToView is called – Knight0fDragon Aug 08 '16 at 17:23

Alessandro Ornano · Answer 2 · 2016-08-08T17:44:11.457

1

In Sprite-kit you should use SKLabelNode in your scene instead of add a UIKit label directly to your view because this could cause bad performance to your game.

I make an example:

let titleLabel = SKLabelNode(fontNamed:"HelveticaNeue-Bold")
titleLabel.text = String("Game Over!")
titleLabel.fontColor = SKColor.whiteColor()
titleLabel.position = CGPoint(x: size.width/2.0, y: size.height/2)
self.addChild(titleLabel)

You can find SKLabelNode also in the Sprite-kit Xcode demo project "hello, world":

edited Aug 08 '16 at 17:44

answered Aug 08 '16 at 10:26

Alessandro Ornano

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this really helped!! Thank YOU SO MUCH! – Osaama Shehzad Aug 14 '16 at 09:08

UILabel does not appear on SKScene

2 Answers2