Could not cast value of type UIView to [CustomView] using Xib

Question

I\'ve seen a number of similar questions, but many aren\'t up-to-date, and none have fixed my issue.

I have a custom Xib and class, CardView. When I try to

Answer 1

In case someone still having this problem, I have the same problem and I think we follow same tutorial.

You have called loadNib() in your xibSetup(). I think you don't have to call it again.

So instead of using

let myCardView = CardView().loadNib() as! CardView

I just use

let myCardView = CardView()

Answer 2

For me loading xib programmatically in this way doesn’t work. I had to remove File owner’s class name and set that to the class name of first view. And then I had to set outlets to the components which I’m going to use.

required init(coder aDecoder: NSCoder) {
    super.init(coder: aDecoder)!
}
override init(frame: CGRect) {
    super.init(frame: frame)
}

Added to custom view class after outlets. For you it's CardView. Then I loaded that view class like

let viewCard = Bundle.main.loadNibNamed("CardView", owner: self, options: nil)?.first as! CardView
view.addSubview(viewCard)

Answer 3

In your UIViewController, when you create an instance of your CardView, instead of casting it like CardView().loadNib() as! CardView, you call the function object_setClass(_, _) to avoid that error (from Xcode 9).

So it should be like:

let myCardView = CardView().loadNib
object_setClass(myCardView, CardView.self)
view.addSubview(myCardView)

Answer 4

Old question, but in case anyone's here:

My problem was that the view subclass was fileprivate. IB doesn't like that apparently.