ios - Swift - constraint issues with UIScrollView (programatically) -

I recently added a scrollwall for my view controller

(I showed the red red background to the UIScrollView, to show that it is taking the full screen)

Now I have a lot in this scene but to keep it simple, I'll focus on the blue bar, which is called my app "topbar"

First of all, I define.

var topBar = UIView ()

I'm auto resizing, give it a color and add it to my scroll weave.

  // ---- ------------- Topbar --------------- // Topbreststationletsautorerisingmask activation ( False) Topbars Background Corolr = Uaisilrkformulaalvr (blog) self.scrollView Add viewsview (topbar)  

Add it to my ideas:

  var viewsDictionary = [ "topbar Add: Height  

to my metrics:

  Let's get metrics extension = ["topbar height"]: 6]  < / Pre> 
 Set the height in a size barrier. 
 
  // size reduction self.scrollView.addConstraints (NSLayoutConstraint.constraintsWithVisualFormat ( "V: [topbar (topBarHeight)]", Options: NSLayoutFormatOptions (0), Matrix: metricsDictionary, consider: V I \\\\\ '>  
 
 And what does not work at the end I / try / to create the full width of this "scrollview" 
 
  // horizontal restriction self.scrollView.addConstraints (NSLayoutConstraint.constraintsWithVisualFormat ( "H: | [topbar] |", option:  
  // vertical restrictions self.scrollView .addConstraints (NSLayoutConstraint.constraintsWithVisualFormat ( "V: | [Topbar] ", option: zero, matrix: zero, witch Now: for my scrollview (one that probably causes headache of my layout)  
 Set as: first thing in the class:  
  scrollView = UIScrollView (frame: UIScreen.mainScreen () range)  
 My viewDidLoad 
 first thing () 
 
  self.view.addSubview (scrollview) scrollView.setTranslatesAutoresizingMaskIntoConstraints (. Wrong) scrollView.scrollEn = disabled = true  
 
 and finally my viewDidLayoutSubviews 
 
  override function viewDidLayoutSubviews () {super.viewDidLayoutSubviews () scrollView.frame = view.bounds scrollView.contentSize = CGSize (width: 2000, height: 5678)}  
 
 ^ The width of ContentSize will be changed to the width of the screen (I only want to scroll vertical). But now this is a minor issue compared to layout problems 
 
 With any help, why everything is squeezed will be greatly appreciated! 
 

I managed to recover from doing this.

viewDidLayoutSubviews

  override function viewDidLayoutSubviews () {super.viewDidLayoutSubviews () scrollView.frame = view.bounds scrollView.contentSize = CGSize (width : Self.view.bounds.width, height: 5678}}  

And instead of creating a scene equal to scrollview, I had to create a subview about it.

I had to do a subviewview of ScrollView to work with all of my stuff, properly barriers.

  self.view.addSubview (scrollView) scrollView.translatesAutoresizingMaskIntoConstraints = false content view. Tronssletsatorisijingmsk Inconstress = false scrollView.addSubview (contentView)  

and were not Updrishy all my other goods "content view" and Scrolwuyr.