UICollectionView+NibView

UICollectionViewExtensions

import UIKit

extension UICollectionView {
    // MARK: - Dequeue Nib Views
    
    func dequeueNibView<T: UICollectionViewCell where T: ReuseIdentifierProtocol>(view: T.Type, indexPath: NSIndexPath) -> T {
        return dequeueReusableCellWithReuseIdentifier(view.reuseIdentifier(), forIndexPath: indexPath) as T
    }
    
    func dequeueSupplementaryReusableNibView<T: UICollectionReusableView where T: ReuseIdentifierProtocol>(view: T.Type, kind: String, indexPath: NSIndexPath) -> T {
        return dequeueReusableSupplementaryViewOfKind(kind, withReuseIdentifier: view.reuseIdentifier(), forIndexPath: indexPath) as T
    }
    
    func dequeueReusableNibViewKind<T: UICollectionReusableView where T: ReusableNibViewKind>(view: T.Type, indexPath: NSIndexPath) -> T {
        return dequeueSupplementaryReusableNibView(view, kind: view.reusableKind(), indexPath: indexPath)
    }
    
    // MARK: - Register Nib Views
    
    func registerNibView<T: UICollectionViewCell where T: CellNibView>(view: T.Type) {
        registerNibView(view, reuseIdentifier: view.reuseIdentifier())
    }
    
    func registerNibView<T: UICollectionViewCell where T: NibView>(view: T.Type, reuseIdentifier: String) {
        registerNib(view.nib(), forCellWithReuseIdentifier: reuseIdentifier)
    }
    
    func registerReusableNibView<T: UICollectionReusableView where T: ReusableNibView>(view: T.Type, kind: String) {
        registerReusableNibView(view, kind: kind, reuseIdentifier: view.reuseIdentifier())
    }
    
    func registerReusableNibView<T: UICollectionReusableView where T: NibView>(view: T.Type, kind: String, reuseIdentifier: String) {
        registerNib(view.nib(), forSupplementaryViewOfKind: kind, withReuseIdentifier: reuseIdentifier)
    }
    
    func registerReusableNibView<T: UICollectionReusableView where T: ReusableNibViewKind>(view: T.Type) {
        registerReusableNibView(view, kind: view.reusableKind())
    }
}