Simple code to get the touch event in the UITableView's or UICollectionView's cell.

CollectionViewController.swift

let tap = UITapGestureRecognizer(target: self, action: #selector(self.openWebView(sender:)))
cell.advtImage.isUserInteractionEnabled = true
cell.advtImage.addGestureRecognizer(tap)

func openWebView(sender: UITapGestureRecognizer) {
    let tapLocation = sender.location(in: self.collectionView) // Returns the CGPoints of the touched location
    if let indexPath = self.collectionView.indexPathForItem(at: tapLocation) // Returns the IndexPath at the above location {
        if let cell = self.collectionView.cellForItem(at: indexPath) as? Advertisment2 {
            if let url = URL(string: cell.url) {
                UIApplication.shared.openURL(url)
            }
        }
    }
}