Protocol: UINavigationControllerDelegate

Overview

The UINavigationControllerDelegate protocol defines methods a navigation controller delegate can implement to change the behavior when view controllers are pushed and popped from the stack of a navigation controller.Sent to the receiver just after the navigation controller displays a view controller’s view and navigation item properties.Sent to the receiver just before the navigation controller displays a view controller’s view and navigation item properties.

Instance Method Summary (collapse)

- navigationController:didShowViewController:animated:

Sent to the receiver just after the navigation controller displays a view controller’s view and navigation item properties.
- navigationController:willShowViewController:animated:

Sent to the receiver just before the navigation controller displays a view controller’s view and navigation item properties.

Instance Method Details

- (`Object`) navigationController(navigationController, didShowViewController:viewController, animated:animated)

Sent to the receiver just after the navigation controller displays a view controller’s view and navigation item properties.

Parameters:

navigationController (UINavigationController) —

The navigation controller that is showing the properties of a view controller.
viewController (UIViewController) —

The view controller whose view and navigation item properties are being shown.
animated (Boolean) —

YES to animate the transition; otherwise, NO.

Returns:

(Object)

- (`Object`) navigationController(navigationController, willShowViewController:viewController, animated:animated)

Sent to the receiver just before the navigation controller displays a view controller’s view and navigation item properties.