             "barHeight":barHeight]
         
         addConstraints(NSLayoutConstraint.constraints(
-            withVisualFormat:"H:|-0-[loader]-0-|",
+            withVisualFormat:"H:|-0-[collectionView]-0-|",
             options:[],
             metrics:metrics,
             views:views))
         addConstraints(NSLayoutConstraint.constraints(
-            withVisualFormat:"V:|-(barHeight)-[loader]-0-|",
+            withVisualFormat:"V:|-(barHeight)-[collectionView]-0-|",
             options:[],
             metrics:metrics,
             views:views))

        return 1
    }
    
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section:Int) -> Int
    {
        let count:Int
        

    {
        self.init()
        translatesAutoresizingMaskIntoConstraints = false
        backgroundColor = UIColor.collectionBackground()
        clipsToBounds = true
        self.controller = controller
        
