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iOS

Posted by Antoine Streiff
Antoine Streiff
4,649 Points

removeFromSuperView() and cells = fatal error: unexpectedly found nil while unwrapping an Optional value

I'm doing a little UITableView with a CustomCell in a XIB.

I want to remove views if a bool says FALSE.

So what I did was a little func : 

    func deleteStackOrNot(valeurPLIST: Bool, stack: UIStackView) {
    if valeurPLIST {
        stack.hidden = false

    } else {
        stack.removeFromSuperview()
          }
    }

and then : 

    deleteStackOrNot((corpusArray[indexPath.row]["iconesNPBool"] as! Bool), stack: cell.iconesStackOutlet)

It's working great on the first scroll down, on 2 cells. However, when I'm scrolling back to the first cell, I get :

fatal error: unexpectedly found nil while unwrapping an Optional value

Pointing on the function call.

I guess I've removed the outlet, like, "for ever", and now xcode doesnt seems to be able to recreate it…

I've also tried with .hidden but I need to remove it, since the constraints stays when the view is hidden.

Somebody suggested to "add a UIStackView property to the custom cell class to hold the view while it's not in the hierarchy and add it back", but I don't really understand what it would mean…

What do you think ?