Adding UITextField in SpriteKit?

Question

I'm just learning Swift and I'm having some trouble with adding a UITextField. This is currently what I have in my GameOverScene.swift file:

import SpriteKit
import UIKit

class GameOverScene: SKScene{

    let gameOver = SKLabelNode(fontNamed: "I pixel u")
    let submitScore = SKSpriteNode(imageNamed: "button")
    let submitScoreText = SKLabelNode(fontNamed: "I pixel u")
    let submitScoreTextShadow = SKLabelNode(fontNamed: "I pixel u")
    let highScoreText = UITextField(frame: CGRectMake(self.frame.width/2, self.frame.height/2+20, 320, 40))

    override func didMoveToView(view: SKView) {
  
        self.backgroundColor = UIColor(hex: 0x80D9FF)
        highScoreText.center = CGPointMake(CGRectGetMidX(self.frame), CGRectGetMidY(self.frame))
  
        highScoreText.borderStyle = UITextBorderStyle.RoundedRect
        highScoreText.textColor = UIColor(hex: 0x000000)
        highScoreText.placeholder = "Enter your name here"
        highScoreText.backgroundColor = UIColor(hex: 0xFFFFFF)
        highScoreText.autocorrectionType = UITextAutocorrectionType.Yes
        highScoreText.keyboardType = UIKeyboardType.Twitter
        highScoreText.clearButtonMode = UITextFieldViewMode.WhileEditing
        highScoreText.autocapitalizationType = UITextAutocapitalizationType.AllCharacters
        self.view!.addSubview(highScoreText)
  
      }

    override func touchesBegan(touches: Set<NSObject>, withEvent event: UIEvent) {
        for touch: AnyObject in touches {
            let location = touch.locationInNode(self)
            if self.nodeAtPoint(location) == self.submitScoreText{
                highScoreName = highScoreText.text
        }
    }
    }

}

I'm getting "'GameOverScene -> () -> GameOverScene' does not have a member named 'frame'" on line 08 where the TextField is defined. Not quite sure what I'm doing wrong and I can't seem to figure out a fix for it. Any idea how I could handle this properly?

SpriteKit

7k

Posted by

Cilerba

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Answer 1

Hi Cilerba,

The UITextField is added as a subview of your UIView.

self.view!.addSubview(highScoreText)

The GameScene is also presented by the view in the GameViewController.

When you present a new scene, the same view is presenting the new scene.

You will need to remove the UITextField subview manually when you change your scene.

highScoreText.removeFromSuperview()

Cheers

Jim

Posted by

jimmymac

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Answer 2

Hi Cilerba,

Try this...

// add the UITextFieldDelegate to your GameScene class
class GameScene: SKScene, UITextFieldDelegate {

    let gameOver = SKLabelNode(fontNamed: "arial")
    // let submitScore = SKSpriteNode(imageNamed: "button")
    let submitScoreText = SKLabelNode(fontNamed: "arial")
    let submitScoreTextShadow = SKLabelNode(fontNamed: "arial")
    var highScoreText: UITextField!

    override func didMoveToView(view: SKView) {
        // changed to SKColor, but UIColor will work the same way. No Hex value.
        backgroundColor = SKColor(red: 0.53, green: 0.85, blue: 0.99, alpha: 1)
    
        // create the UITextField instance with positions... half of the screen width minus half of the textfield width.
        // Same for the height.
        highScoreText = UITextField(frame: CGRectMake(view.bounds.width / 2 - 160, view.bounds.height / 2 - 20, 320, 40))

        // add the UITextField to the GameScene's view
        view.addSubview(highScoreText)
     
        // add the gamescene as the UITextField delegate.
        // delegate funtion called is textFieldShouldReturn:
        highScoreText.delegate = self
    
        highScoreText.borderStyle = UITextBorderStyle.RoundedRect
        highScoreText.textColor = SKColor.blackColor()
        highScoreText.placeholder = "Enter your name here"
        highScoreText.backgroundColor = SKColor.whiteColor()
        highScoreText.autocorrectionType = UITextAutocorrectionType.Yes
       
        highScoreText.clearButtonMode = UITextFieldViewMode.WhileEditing
        highScoreText.autocapitalizationType = UITextAutocapitalizationType.AllCharacters
        self.view!.addSubview(highScoreText)
    
        submitScoreText.fontSize = 22
        submitScoreText.position = CGPoint(x: size.width / 2, y: size.height * 0.7)
        submitScoreText.text = "your text will show here"
        addChild(submitScoreText)
    }


    // Called by tapping return on the keyboard.
    func textFieldShouldReturn(textField: UITextField) -> Bool {
        // Populates the SKLabelNode
        submitScoreText.text = textField.text

        // Hides the keyboard

        textField.resignFirstResponder()
        return true
    }

}

I hope this helps.

Jim

Posted by

jimmymac

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Answer 3

Thank you! That did the trick, but when I switch scenes the TextField still appears for some reason.

Posted by

Cilerba

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Answer 4

Hi Cilerba,

The UITextField is added as a subview of your UIView.

self.view!.addSubview(highScoreText)

The GameScene is also presented by the view in the GameViewController.

When you present a new scene, the same view is presenting the new scene.

You will need to remove the UITextField subview manually when you change your scene.

highScoreText.removeFromSuperview()

Cheers

Jim

Posted by

jimmymac

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Adding UITextField in SpriteKit?

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