Root view controller

[ios-utils]

Root view controller

[reececomo]

Heya, that could mean a couple things - but I'll try to address as best I can.

For the root view controller of the app
You would still set this the same way, via AppDelegate:

window.rootViewController = myRootViewController()
window.makeKeyAndVisible()

For the root view controller of some navigation controller
If your child navigation controller has a simple flow, you could configure a coordinator that manages the navigation stack:

class MovieLibraryCoordinator {
    private lazy var container = UINavigationController(rootViewController: menuViewController)
    private let menuViewController = UIViewController()

    func openMenu() -> UINavigationController {
        container.setViewControllers([menuViewController], animated: true)
        return container
    }

    func showDetails(for movie: Movie) -> UINavigationController {
        let detailViewController = MovieDetailsViewController(with: movie)
        container.pushViewController(detailViewController, animated: true)
        return container
    }
}

Where your routes are configured like so:

    func prepareForTransition(from sourceViewController: UIViewController) throws {
        // ...
        case .movieLibrary:
            return container.movieLibraryCoordinator.openMenu()
        case .movieDetails(let movie):
            return container.movieLibraryCoordinator.showDetails(for: movie)
        }
    }

Using a child router
If your flow was more complicated, you could also let the coordinator manage its own router.

class MovieLibraryCoordinator {

    enum MovieRoute: RouteProvider {
        case library
        case details(for: Movie)

        // ...
    }

    private let router = Router<MovieRoute>()
    private lazy var container = UINavigationController(rootViewController: menuViewController)
    private let menuViewController = UIViewController()

    func open(_ route: MovieRoute) -> UINavigationController {
        router.navigate(to: route, animated: true)
        return container
    }
}

Where your parent route is configured like so:

    func prepareForTransition(from sourceViewController: UIViewController) throws {
        // ...
        case .movies(let movieRoute):
            return container.movieCoordinator.open(movieRoute)
        }
    }

[reececomo]

Does that answer your question? I'd be happy to go through more examples. It's probably a good suggestion that we clean up the example project to be clearer

[reececomo]

I’ll leave this open for a little while longer and then mark as closed