UIViewController(AppearanceEvents) Category Reference

Declared in UIViewController+AppearanceEvents.h

Overview

UIViewController child view controller appearance management.

  shouldAutomaticallyManageAppearanceTransitions

Whether or not the view controller should automatically notify its children when it appears and disappears.

@property (nonatomic, readonly) BOOL shouldAutomaticallyManageAppearanceTransitions

Discussion

Whether or not the view controller should automatically notify its children when it appears and disappears.

Whenever you enable this, you must override shouldAutomaticallyForwardAppearanceMethods to false

Declared In

UIViewController+AppearanceEvents.h

– viewControllerWillAppear:animated:

Call when a child view controller will appear.

- (void)viewControllerWillAppear:(nonnull UIViewController *)viewController animated:(BOOL)animated

Parameters

viewController

The view controller.

animated

Whether the transition is animated.

Discussion

Call when a child view controller will appear.

Declared In

UIViewController+AppearanceEvents.h

– viewControllerDidAppear:animated:

Call when a child view controller did appear.

- (void)viewControllerDidAppear:(nonnull UIViewController *)viewController animated:(BOOL)animated

Parameters

viewController

The view controller.

animated

Whether the transition is animated.

Discussion

Call when a child view controller did appear.

Declared In

UIViewController+AppearanceEvents.h

– viewControllerWillDisappear:animated:

Call when a child view controller will disappear.

- (void)viewControllerWillDisappear:(nonnull UIViewController *)viewController animated:(BOOL)animated

Parameters

viewController

The view controller.

animated

Whether the transition is animated.

Discussion

Call when a child view controller will disappear.

Declared In

UIViewController+AppearanceEvents.h

– viewControllerDidDisappear:animated:

Call when a child view controller did disappear.

- (void)viewControllerDidDisappear:(nonnull UIViewController *)viewController animated:(BOOL)animated

Parameters

viewController

The view controller.

animated

Whether the transition is animated.

Discussion

Call when a child view controller did disappear.

Declared In

UIViewController+AppearanceEvents.h