storyboards access globally iOS swift

 Solution:

import Foundation

import UIKit

enum AppStoryboard : String {

    

    case Main

    case Settings

    var instance : UIStoryboard {

        

        return UIStoryboard(name: self.rawValue, bundle: Bundle.main)

    }

    

    func viewController<T : UIViewController>(viewControllerClass : T.Type, function : String = #function, line : Int = #line, file : String = #file) -> T {

        let storyboardID = (viewControllerClass as UIViewController.Type).storyboardID

        guard let scene = instance.instantiateViewController(withIdentifier: storyboardID) as? T else {

            fatalError("ViewController with identifier \(storyboardID), not found in \(self.rawValue) Storyboard.\nFile : \(file) \nLine Number : \(line) \nFunction : \(function)")

        }

        

        return scene

    }

    

    func initialViewController() -> UIViewController? {

        return instance.instantiateInitialViewController()

    }

}

extension UIViewController {

    

    // Not using static as it wont be possible to override to provide custom storyboardID then

    class var storyboardID : String {

        return "\(self)"

    }

    

    static func instantiate(fromAppStoryboard appStoryboard: AppStoryboard) -> Self {

        return appStoryboard.viewController(viewControllerClass: self)

    }

}