Collectionview Cell detection

detection.swift

func buildCollectionView() {
        let layout: UICollectionViewFlowLayout = UICollectionViewFlowLayout()
        layout.scrollDirection = .horizontal
        layout.minimumInteritemSpacing = 0;
        layout.minimumLineSpacing = 4;
        
        collectionView = UICollectionView(frame: CGRect(x: 0, y: screenSize.midY - 120, width: screenSize.width, height: 180), collectionViewLayout: layout)
        
        collectionView.dataSource = self
        collectionView.delegate = self
        collectionView.register(VideoCell.self, forCellWithReuseIdentifier: "videoCell")
        collectionView.showsHorizontalScrollIndicator = false
        collectionView.showsVerticalScrollIndicator = false
        collectionView.contentInset = UIEdgeInsetsMake(0, 20, 0, 30)
        collectionView.backgroundColor = UIColor.white()
        collectionView.alpha = 0.0
        
        collectionView.layer.masksToBounds = false
        collectionView.clipsToBounds = false
        collectionView.isUserInteractionEnabled = true
        
        //adding gesturerecognizer to the complete view
        swipeUpRecognizer = UIPanGestureRecognizer(target: self, action: #selector(self.deleteCell))
        swipeUpRecognizer.delegate = self
        self.view.addGestureRecognizer(swipeUpRecognizer)
    }
    
    func deleteCell(sender: UIPanGestureRecognizer) {
        let tapLocation = sender.location(in: self.view)
        let indexPath = self.collectionView.indexPathForItem(at: tapLocation)
        print(indexPath) //only prints when I'm at 0 - 180. But as you can see from my collectionView it starts at the center of the screen - 120
    }