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xcodeswiftuistoryboardnulliboutlet

IBOutlet is nil, but it is connected in storyboard, Swift

Using Swift 1.1 and Xcode 6.2.

I have a UIStoryboard containing a singular, custom UIViewController subclass. On it, I have an @IBOutlet connection of type UIView from that controller to a UIView subclass on the storyboard. I also have similar outlets for subviews of that view. See figure A.

But at run time, these properties are nil (Figure B). Even though I have assured I've connected the outlets in Interface Builder.

Thoughts:

  • Is it possible that because I am using a subclass of a subclass something messes up with the initialization? I am not overriding any initializers
  • awakeFromNib: is not getting called for some reason
  • Maybe it doesn't connecting to subviews on subviews

Things I have tried:

  • Matching @IBOutlet and storyboard item types exactly (instead of UIView)
  • Deleting property and outlet and re-added them

Figure A

Figure A*

Figure B

Figure B

*The obscured code in Figure A is:

@IBOutlet private var annotationOptionsView: UIView!
@IBOutlet private var arrivingLeavingSwitch: UISegmentedControl!

Thank you.

Solution

  • The storyboard wasn't recognizing any further UI things I added to it. At run time all the references were nil. So I cleared my derived data folder and then those connections worked again.