didSelectItemAt not called in CustomCollectionVC ? about pinterestlayout HOT 2 OPEN

let TapDetector: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(Tapped(_:)))
        TapDetector.numberOfTapsRequired = 1
        TapDetector.numberOfTouchesRequired = 1
        collectionView?.addGestureRecognizer(TapDetector)
    }

@objc func Tapped(_ tap: UITapGestureRecognizer){
        let point: CGPoint = tap.location(in: collectionView)
        let indexPath: IndexPath = (collectionView?.indexPathForItem(at: point))!
        let ArrayIndex = indexPath.row
        NSLog("Tapped: \(ArrayIndex)")
    }