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UICollectionView extension to easily register/dequeue cells
import UIKit
protocol UICollectionViewRegisterable {
static var cellIdentifier: String { get }
static var cellNib: UINib { get }
extension UICollectionView {
func register(type: UICollectionViewRegisterable.Type) {
register(type.cellNib, forCellWithReuseIdentifier: type.cellIdentifier)
func dequeueCell<CellType: UICollectionViewRegisterable>(at indexPath: IndexPath) -> CellType {
guard let cell = dequeueReusableCell(withReuseIdentifier: CellType.cellIdentifier, for: indexPath) as? CellType else {
fatalError("UICollectionView should dequeue a cell of type \(CellType.self)")
return cell
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