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strong Reference to Custom SCNScene is keeping it from deinit

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0

In my ViewController I declare a UIGesturerecognitzer like this :

 var scnView : SCNView!

 override func viewdidload 
 let swipeDownGesture = UISwipeGestureRecognizer(target: self, action: #selector(handleswipedown(_:)))
 swipeDownGesture.direction = .down
 scnView.addGestureRecognizer(swipeDownGesture)

@objc
 func handleswipedown(_ gestureRecognize: UIGestureRecognizer) 
 if movingallowed == true 
 if let scene = scnView.scene as! GameScene 
 scene.swipedDown()
 
 
 

GameScene is a custom SCNScene Class.

After the Player is done with the Level, I would like to present the next GameScene and deinit the last one, but it doesn't deinit. When I comment out the GestureRecognizer, it does though.

I think this is because I create a strong reference here:

if let scene = scnView.scene as! GameScene 
 scene.swipedDown()
 

My Question is, how do I make this a weak reference?

Thank you in advance

swift reference scnscene

share|improve this question

edited Mar 9 at 13:46

Kaushik Makwana

1,031723

asked Mar 9 at 8:57

Hergen LehmannHergen Lehmann

86

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  func viewdidload – did you post your actual code?
  
  – Martin R
  Mar 9 at 10:01
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Yes besided that part(i was lazy).
  
  – Hergen Lehmann
  Mar 9 at 15:58
  

  
  
  
  

add a comment | 

0

In my ViewController I declare a UIGesturerecognitzer like this :

 var scnView : SCNView!

 override func viewdidload 
 let swipeDownGesture = UISwipeGestureRecognizer(target: self, action: #selector(handleswipedown(_:)))
 swipeDownGesture.direction = .down
 scnView.addGestureRecognizer(swipeDownGesture)

@objc
 func handleswipedown(_ gestureRecognize: UIGestureRecognizer) 
 if movingallowed == true 
 if let scene = scnView.scene as! GameScene 
 scene.swipedDown()
 
 
 

GameScene is a custom SCNScene Class.

After the Player is done with the Level, I would like to present the next GameScene and deinit the last one, but it doesn't deinit. When I comment out the GestureRecognizer, it does though.

I think this is because I create a strong reference here:

if let scene = scnView.scene as! GameScene 
 scene.swipedDown()
 

My Question is, how do I make this a weak reference?

Thank you in advance

swift reference scnscene

share|improve this question

edited Mar 9 at 13:46

Kaushik Makwana

1,031723

asked Mar 9 at 8:57

Hergen LehmannHergen Lehmann

86

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  func viewdidload – did you post your actual code?
  
  – Martin R
  Mar 9 at 10:01
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Yes besided that part(i was lazy).
  
  – Hergen Lehmann
  Mar 9 at 15:58
  

  
  
  
  

add a comment | 

In my ViewController I declare a UIGesturerecognitzer like this :

 var scnView : SCNView!

 override func viewdidload 
 let swipeDownGesture = UISwipeGestureRecognizer(target: self, action: #selector(handleswipedown(_:)))
 swipeDownGesture.direction = .down
 scnView.addGestureRecognizer(swipeDownGesture)

@objc
 func handleswipedown(_ gestureRecognize: UIGestureRecognizer) 
 if movingallowed == true 
 if let scene = scnView.scene as! GameScene 
 scene.swipedDown()
 
 
 

GameScene is a custom SCNScene Class.

After the Player is done with the Level, I would like to present the next GameScene and deinit the last one, but it doesn't deinit. When I comment out the GestureRecognizer, it does though.

I think this is because I create a strong reference here:

if let scene = scnView.scene as! GameScene 
 scene.swipedDown()
 

My Question is, how do I make this a weak reference?

Thank you in advance

swift reference scnscene

share|improve this question

edited Mar 9 at 13:46

Kaushik Makwana

1,031723

asked Mar 9 at 8:57

Hergen LehmannHergen Lehmann

86

 var scnView : SCNView!

 override func viewdidload 
 let swipeDownGesture = UISwipeGestureRecognizer(target: self, action: #selector(handleswipedown(_:)))
 swipeDownGesture.direction = .down
 scnView.addGestureRecognizer(swipeDownGesture)

@objc
 func handleswipedown(_ gestureRecognize: UIGestureRecognizer) 
 if movingallowed == true 
 if let scene = scnView.scene as! GameScene 
 scene.swipedDown()
 
 
 

if let scene = scnView.scene as! GameScene 
 scene.swipedDown()
 

share|improve this question

edited Mar 9 at 13:46

Kaushik Makwana

1,031723

asked Mar 9 at 8:57

Hergen LehmannHergen Lehmann

86

share|improve this question

edited Mar 9 at 13:46

Kaushik Makwana

1,031723

asked Mar 9 at 8:57

Hergen LehmannHergen Lehmann

86

edited Mar 9 at 13:46

Kaushik Makwana

1,031723

edited Mar 9 at 13:46

Kaushik Makwana

1,031723

asked Mar 9 at 8:57

Hergen LehmannHergen Lehmann

86

asked Mar 9 at 8:57

Hergen LehmannHergen Lehmann

86