How do you implement and manage navigation in an application?

In iOS, navigation is usually implemented using UINavigationController, UITabBarController, or custom solutions.

To manage navigation, I use UINavigationController for stack navigation, where you can move forward and backward between screens. For dividing the app into main sections — UITabBarController.

An example of a simple transition to the next screen:

let nextVC = NextViewController()
navigationController?.pushViewController(nextVC, animated: true)

For more complex applications, I apply patterns like Coordinator or Router to centralize navigation logic and avoid tight coupling between controllers.

I also use Storyboard Segues or SwiftUI NavigationView/NavigationLink if the project is on SwiftUI.

It is important to maintain a clear navigation structure so that the user does not get lost, and to provide the ability to go back if necessary.