         let stickerModel = sickerPack.stickers[indexPath.row]
         
         self.conv.sendSticker(stickerModel)
+        
+    }
+    
+    func collectionView(collectionView: UICollectionView, willDisplayCell cell: UICollectionViewCell, forItemAtIndexPath indexPath: NSIndexPath) {
+        
+        
+        
         
     }
     

        
        self.collectionView.contentInset = UIEdgeInsetsMake(15, 10, 15, 10)
        
        
        // add collection view as subview
        self.addSubview(self.collectionView)

        stickerCell.stickerImage.backgroundColor = UIColor.clearColor()
        stickerCell.bind(sickerPack.stickers[indexPath.row], clearPrev: true)
        
        
        return stickerCell;
        
    }
