MochaTheCoder

class VC: UIViewController {

  private let asyncButton = UIButton()

  func doAsyncAction() {
    // Change button to display loading when we click on it
    asyncButton.isEnabled = false
    asyncButton.setTitle("Loading", for: .disabled)
    asyncButton.setTitleColor(.red, for: .disabled)
    networkManager.makeRequest() { response in 

MochaTheCoder

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {

        window = UIWindow(frame: UIScreen.main.bounds)
        let aVC = AViewController()
        let nav = UINavigationController(rootViewController: aVC)
        window!.rootViewController = nav
        window!.makeKeyAndVisible()
        return true
    }

MochaTheCoder

// Assuming .xib name is the same as class name

extension UIView {
    func nibView<T>(for: T.Type) -> UIView? {
        let nib = UINib(nibName: String(describing: T.self), bundle: nil)
        let view = nib.instantiate(withOwner: self, options: nil).first as? UIView
        return view
    }
    
    func addNibView<T>(from: T.Type) -> UIView? {

MochaTheCoder

extension UITableView {
    func registerNib<T>(from: T.Type) {
        register(UINib(nibName: String(describing: T.self), bundle: nil), forCellReuseIdentifier: String(describing: T.self))
    }

    func dequeReusableCell<T>() -> T? {
        return dequeueReusableCell(withIdentifier: String(describing: T.self)) as? T
    }
}
// To Use: