How to get CollectionViewCell indexPath on Out-sided UIButton Click

Question

How to get indexPath of collectionViewCell on Button click and Button is in Out sided from collectionviewCell. I am trying with sender and Superview. But it is not working.

@IBAction func btnCancel(_ sender: Any) {
    if let cell = (sender as AnyObject).superview??.superview?.superview?.superview?.superview?.superview as? ImageShowinPopUpCell {
        let indexPath = collectionview.indexPath(for: cell)
        deleteDublicateImage(id: isNilValue(assignValue: dbImageDataModel![(indexPath?.row)!].id))
        collectionview.reloadData()
        if dbImageDataModel.count == 0
        {
            dismiss(animated: true, completion: nil)
        }
    }
}

Answer 1

import UIKit

class ViewController: UIViewController ,UICollectionViewDelegate&UICollectionViewDataSource&UICollectionViewDelegateFlowLayout{

    @IBOutlet weak var collectionView: UICollectionView!

    var currentIndexPath:IndexPath!
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.
        collectionView.delegate = self
        collectionView.dataSource = self

    }

    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return 10
    }
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath)
        cell.backgroundColor = indexPath.row % 2 == 1 ? .blue : .red
        return cell
    }
    func collectionView(_ collectionView: UICollectionView, willDisplay cell: UICollectionViewCell, forItemAt indexPath: IndexPath) {
        currentIndexPath = indexPath
    }

    @IBAction func indexPathAction(_ sender: UIButton) {
        print("Current IndexPath",currentIndexPath)
    }
    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
        return collectionView.bounds.size
    }


}