Navigator.swift allow decoupled navigation in iOS apps, useful to handle external requests such as deep linking, push notifications or shortcuts (open a given viewController from AppDelegate) and/or to simply call funcs on VCs not directly accessible.

Navigator recursively scan all instantiated view controllers in your view hierarchy looking for the class.Type you're searching for in childs and/or presentedViewController.

It can then navigate to it using all native container view controllers methods (UITabBarController, UISplitViewController and UINavigationController).

NOTE: If you use custom containers then you can navigate to them and complete navigation steps in closure, same for not loaded UIViewControllers.

Use the UIViewController extension on your view controller itself. It returns the vc instance (auto-inferred type) synchronously while navigation always happen async on the main thread:

// return the running instance and call one of its funcs in one line:
HelloVC.find()?.sayHelloInConsole()

// go to it
HelloVC.select()

// execute something in the main thread asynchronously:
HelloVC.find { (helloVCParent, helloVC) in
    helloVC?.sayHelloWithAlertFromRootViewController()
    print("HelloVC found: ", helloVC?.title as? String)
}

let hVC = HelloVC.select { (helloVCParent, helloVC) in
    helloVC?.sayHelloWithAlert()
    print("HelloVC found, printing on main thread async: ", helloVC?.title as? String)
}
hVC.doSomething() // sync

Activate debug and whatch the view hierarchy printed on console:

Navigator.debug = true

APP_DELEGATE // Returns the AppDelegate
APP_WINDOW // Returns the App Window
APP_ROOT // Returns the root viewController also if it is not in the view hierarchy
APP_ROOT_VH // Returns the root viewController which is in the view hierarchy
APP_TOP // Returns the top most viewController

Simply drag Navigator.swift inside your project and start using it.

• Found a bug or have a feature request? Open an issue.
• Want to contribute? Submit a pull request.

• Marco Muratori

Navigator.swift is available under the MIT license. See the LICENSE file for more information.