         
         self.collectionView.contentInset = UIEdgeInsetsMake(15, 10, 15, 10)
         
+        self.collectionView.preservesSuperviewLayoutMargins = false
+        self.collectionView.layoutMargins = UIEdgeInsetsZero
+        
         
         // add collection view as subview
         self.addSubview(self.collectionView)

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

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