Nib IBOutlet makes application crash

Question

Actually need your help! I went through every possible post considering this issue and nothing works.

So, I use the .xib file to create a subview in ProfileFoldingCellView.swift, which works fine until I try to add an IBOutlet to the same class. Here is the code:

import Foundation
import UIKit

class ProfileFoldingCellView: UIView {

    @IBOutlet var mainLabel: UILabel!
    public var cellIndex: Int = 0

    init(index: Int) {
        super.init(frame: CGRect(x: 0, y: 0, width: 0, height: 0))

        cellIndex = index
        print("Index: \(cellIndex)")

        setupContentView()
    }

    func setupContentView() {
        let contentView = UINib(nibName: "ProfileFoldingCellView", bundle: nil).instantiate(withOwner: nil, options: nil)[0] as! UIView
        contentView.autoresizingMask = [.flexibleWidth, .flexibleHeight]

        addSubview(contentView)
    }

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        setupContentView()
    }

}

As you can see, the IBOutlet shortcut is created without any problems, and there are no other outdated or unused roaming.

http://imgur.com/a/jb9CA

I also made sure that ProfileFoldingCellView.swift is the file owner class.

Everything works fine until I plug in the socket! Then I get this error:

http://imgur.com/a/6hHPG

Believe me, I tried everything. I probably again created the output a million times, nothing works. Any help would be greatly appreciated!

Answer 1

NSObject ProfileFoldingCellView, mainLabel UIView, File Owner

Answer 2

, , mainLabel ... files owner, , , , UILabel.

Answer 3

!

let contentView = UINib(nibName: "ProfileFoldingCellView", bundle: nil).instantiate(withOwner: nil, options: nil)[0] as! UIView

:

let contentView = Bundle.main.loadNibNamed("ProfileFoldingCellView", owner: self, options: nil)?[0] as! UIView

ProfileFoldingCellView