How do I use coordinators for navigation in Swift?

In Swift, using coordinators for navigation helps to manage the flow of your app and improve its structure. A coordinator is basically a design pattern that helps to encapsulate navigation logic and its associated view controllers. This makes your code easier to manage and scale as your app grows.

Here’s how you can implement a basic coordinator pattern in Swift:


        // Coordinator protocol
        protocol Coordinator {
            var navigationController: UINavigationController { get set }
            func start()
        }

        // App Coordinator
        class AppCoordinator: Coordinator {
            var navigationController: UINavigationController
            
            init(navigationController: UINavigationController) {
                self.navigationController = navigationController
            }
            
            func start() {
                let mainViewController = MainViewController()
                navigationController.pushViewController(mainViewController, animated: false)
            }
        }

        // Example of MainViewController
        class MainViewController: UIViewController {
            override func viewDidLoad() {
                super.viewDidLoad()
                // Setup view here
            }
            
            @objc func navigateToDetails() {
                let detailsViewController = DetailsViewController()
                navigationController?.pushViewController(detailsViewController, animated: true)
            }
        }

        // Setting up the App Coordinator in AppDelegate or SceneDelegate
        class SceneDelegate: UIResponder, UIWindowSceneDelegate {
            var window: UIWindow?
            var appCoordinator: AppCoordinator?

            func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
                guard let windowScene = scene as? UIWindowScene else { return }
                window = UIWindow(windowScene: windowScene)
                
                let navigationController = UINavigationController()
                appCoordinator = AppCoordinator(navigationController: navigationController)
                appCoordinator?.start()
                
                window?.rootViewController = navigationController
                window?.makeKeyAndVisible()
            }
        }

How do I use coordinators for navigation in Swift?

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How do I use coordinators for navigation in Swift?

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