supplementary view remains briefly when viewcontroller is dismissed

Question

I added a view to the top of my collection view, now when I dismiss the view remains for a split second. Does anyone have any idea to what might cause this?

let newView = UIView() newView.backgroundColor = UIColor.redColor() 

newView.translatesAutoresizingMaskIntoConstraints = false view.addSubview(newView) 

let pinTop = NSLayoutConstraint(item: newView, attribute: .Top, relatedBy: .Equal, toItem: 

self.topLayoutGuide, attribute: .Bottom, multiplier: 1.0, constant: 0) 

let heightConstraint = newView.heightAnchor.constraintEqualToAnchor(nil, constant: 50) 

let widthConstraint = NSLayoutConstraint(item: newView, attribute: .Width, relatedBy: .Equal, toItem: view, attribute: .Width, multiplier: 1.0, constant: 0) 

self.topContentAdditionalInset = 50 

NSLayoutConstraint.activateConstraints([pinTop, heightConstraint, widthConstraint])

by using the navigation controller back button from ios – slimboy Sep 05 '16 at 02:56 — slimboy, Sep 05 '16 at 02:56

score 1 · Answer 1 · answered Sep 05 '16 at 03:31

1

If you are dismissing it with the viewController, try to add newView .removeFromSuperview() in viewWillDissapear and re-adding it in viewWillAppear

answered Sep 05 '16 at 03:31

Tj3n

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score 0 · Answer 2 · answered Sep 05 '16 at 03:35

0

I was just missing a constraint, stupid me!

        let centerX = NSLayoutConstraint(item: newView, attribute: NSLayoutAttribute.CenterX, relatedBy: NSLayoutRelation.Equal, toItem: self.view, attribute: NSLayoutAttribute.CenterX, multiplier: 1, constant: 0)

answered Sep 05 '16 at 03:35

slimboy

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so you answered your own question? – Dan Leonard Sep 06 '16 at 02:50

supplementary view remains briefly when viewcontroller is dismissed

2 Answers2