Makes life a little easier with UITableView or UICollectionView cells and some more :)

Reusable.swift

//
//  Reusable.swift
//  TodoMVVM
//
//  Created by Ashik uddin Ahmad on 7/20/17.
//  Copyright © 2017 Ashik uddin Ahmad. All rights reserved.
//

import UIKit

protocol ClassNameStringConvertible {
    static var classNameString: String { get }
}

protocol Reusable: ClassNameStringConvertible {
    static func reuseId()->String
}

extension ClassNameStringConvertible {
    static var classNameString: String {
        return "\(Self.self)"
    }
}

extension Reusable {
    static func reuseId()->String {
        return classNameString
    }
}

extension UITableView {
    func register<T: Reusable>(_ cellType: T.Type) where T:UITableViewCell {
        register(T.self, forCellReuseIdentifier: T.reuseId())
    }
    
    func dequeCell<T:Reusable>()->T where T:UITableViewCell {
        return dequeueReusableCell(withIdentifier: T.reuseId()) as! T
    }
    
    func dequeCell<T:Reusable>(for indexPath: IndexPath)->T where T:UITableViewCell {
        return dequeueReusableCell(withIdentifier: T.reuseId(), for: indexPath) as! T
    }
}

extension UICollectionView {
    func dequeueCell<T:Reusable>(for indexPath: IndexPath)->T? where T:UICollectionViewCell {
        return dequeueReusableCell(withReuseIdentifier: T.reuseId(), for: indexPath) as? T
    }
}

extension UIStoryboard {
    /// To use this method, VC's storyboard identifier must be the same as ClassName.
    func instantiateVC<T: ClassNameStringConvertible>()->T where T:UIViewController {
        return instantiateViewController(withIdentifier: T.classNameString) as! T
    }
}