development: added default registry of CollectionViewCell to CollectionView

Sources/iOS/CardCollectionViewController.swift

@@ -127,7 +127,7 @@ extension CardCollectionViewController: CollectionViewDataSource {
         }
         
         dataSourceItemsIndexPaths[indexPath] = card
-        
+
         card.frame = cell.bounds
     
         cell.card = card

Sources/iOS/CollectionView.swift

@@ -104,21 +104,24 @@ open class CollectionView: UICollectionView {
      An initializer that initializes the object.
      - Parameter collectionViewLayout: A UICollectionViewLayout reference.
      */
-    public convenience init(collectionViewLayout layout: UICollectionViewLayout) {
-        self.init(frame: .zero, collectionViewLayout: layout)
+    public init(collectionViewLayout layout: UICollectionViewLayout) {
+        super.init(frame: .zero, collectionViewLayout: layout)
+        prepare()
     }
 	
 	/**
      An initializer that initializes the object.
      - Parameter frame: A CGRect defining the view's frame.
      */
-	public convenience init(frame: CGRect) {
-		self.init(frame: frame, collectionViewLayout: CollectionViewLayout())
-	}
+	public init(frame: CGRect) {
+		super.init(frame: frame, collectionViewLayout: CollectionViewLayout())
+        prepare()
+    }
 	
 	/// A convenience initializer that initializes the object.
-	public convenience init() {
-		self.init(frame: .zero)
+	public init() {
+        super.init(frame: .zero, collectionViewLayout: CollectionViewLayout())
+        prepare()
 	}
 	
 	/**
@@ -131,5 +134,6 @@ open class CollectionView: UICollectionView {
     open func prepare() {
         backgroundColor = .white
 		contentScaleFactor = Screen.scale
+        register(CollectionViewCell.self, forCellWithReuseIdentifier: "CollectionViewCell")
     }
 }

Sources/iOS/CollectionViewCell.swift

@@ -251,6 +251,7 @@ open class CollectionViewCell: UICollectionViewCell, Pulseable, PulseableLayer {
      when subclassing.
      */
 	open func prepare() {
+        backgroundColor = .white
 		contentScaleFactor = Screen.scale
 		prepareVisualLayer()
         preparePulse()

Sources/iOS/CollectionViewController.swift

@@ -112,6 +112,7 @@ extension CollectionViewController {
 }
 
 extension CollectionViewController: CollectionViewDelegate {}
+
 extension CollectionViewController: CollectionViewDataSource {
     @objc
     open func numberOfSections(in collectionView: UICollectionView) -> Int {
@@ -125,6 +126,6 @@ extension CollectionViewController: CollectionViewDataSource {
 
     @objc
     open func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
-        return UICollectionViewCell()
+        return collectionView.dequeueReusableCell(withReuseIdentifier: "CollectionViewCell", for: indexPath)
     }
 }