Instance Method

viewDidUnload

Called when the controller'€™s view is released from memory.

Declaration

- (void)viewDidUnload;

Discussion

In iOS 5 and earlier, when a low-memory condition occurred and the current view controller'€™s views were not needed, the system could opt to call this method after the view controller'€™s view had been released. This method was your chance to perform any final cleanup. If your view controller stored separate references to the view or its subviews, you could use this method to release those references. You could also use this method to remove references to any objects that you created to support the view but that are no longer needed now that the view is gone. You would not use this method to release user data or any other information that cannot be easily recreated.

In iOS 6 and later, clearing references to views and other objects in your view controller is unnecessary.

At the time this method is called, the view property is nil.

See Also

Deprecated

- viewWillUnload

Called just before releasing the controller'€™s view from memory.

Deprecated
contentSizeForViewInPopover

The size of the view controller'€™s view while displayed in a popover.

Deprecated
- presentModalViewController:animated:

Presents a modal view managed by the given view controller to the user.

Deprecated
- dismissModalViewControllerAnimated:

Dismisses the view controller that was presented by the receiver.

Deprecated
wantsFullScreenLayout

A Boolean value indicating whether the view should underlap the status bar.

Deprecated
- shouldAutorotateToInterfaceOrientation:

Returns a Boolean value indicating whether the view controller supports the specified orientation.

Deprecated
- rotatingHeaderView

Returns the header view to transition during an interface orientation change.

Deprecated
- rotatingFooterView

Returns the footer view to transition during an interface orientation change.

Deprecated
interfaceOrientation

Convenience property that provides the current orientation of the interface, meaningful only if the view controller is taking up the full screen.

Deprecated
- willRotateToInterfaceOrientation:duration:

Sent to the view controller just before the user interface begins rotating.

Deprecated
- willAnimateRotationToInterfaceOrientation:duration:

Sent to the view controller before performing a one-step user interface rotation.

Deprecated
- didRotateFromInterfaceOrientation:

Sent to the view controller after the user interface rotates.

Deprecated
- willAnimateFirstHalfOfRotationToInterfaceOrientation:duration:

Sent to the view controller before performing the first half of a user interface rotation.

Deprecated
- didAnimateFirstHalfOfRotationToInterfaceOrientation:

Sent to the view controller after the completion of the first half of the user interface rotation.

Deprecated
- willAnimateSecondHalfOfRotationFromInterfaceOrientation:duration:

Sent to the view controller before the second half of the user interface rotates.

Deprecated
searchDisplayController

The search display controller associated with the view controller.

Deprecated
modalViewController

The controller for the active presented view'€”that is, the view that is temporarily displayed on top of the view managed by the receiver.

Deprecated
- shouldAutomaticallyForwardRotationMethods

Returns a Boolean value indicating whether rotation methods are forwarded to child view controllers.

Deprecated
- automaticallyForwardAppearanceAndRotationMethodsToChildViewControllers

Returns a Boolean value that indicates whether appearance and rotation methods are forwarded.

Deprecated
- presentMoviePlayerViewControllerAnimated:

Presents the movie player view controller using the standard movie player transition.

Deprecated
- dismissMoviePlayerViewControllerAnimated

Dismisses a movie player view controller using the standard movie player transition.

Deprecated
- viewControllerForUnwindSegueAction:fromViewController:withSender:

Called when an unwind segue action wants to search a container'€™s children for a view controller to handle the unwind action.

Deprecated
- segueForUnwindingToViewController:fromViewController:identifier:

Called when an unwind segue action needs to transition between two view controllers.

Deprecated
bottomLayoutGuide

Indicates the lowest vertical extent for your onscreen content, for use with Auto Layout constraints.

Deprecated
topLayoutGuide

Indicates the highest vertical extent for your onscreen content, for use with Auto Layout constraints.

Deprecated
automaticallyAdjustsScrollViewInsets

A Boolean value that indicates whether the view controller should automatically adjust its scroll view insets.

Deprecated
canDisplayBannerAds

A boolean value that indicates whether the view controller is configured to display banner ads.

Deprecated
originalContentView

The originally configured content view of the view controller before banner ads were enabled.

Deprecated
presentingFullScreenAd

A boolean value that indicates whether the view controller is displaying a full-screen ad.

Deprecated
displayingBannerAd

A boolean value that indicates whether the view controller is displaying a banner ad.

Deprecated
+ prepareInterstitialAds

Prepares the iAd framework to display interstitial ads, which may involve prefetching ad assets.

Deprecated
interstitialPresentationPolicy

Determines whether interstitials should be presented at all and whether the framework or app should manage the presentation.

Deprecated
- requestInterstitialAdPresentation

Asks the framework to display an interstitial ad.

Deprecated
shouldPresentInterstitialAd

Returns whether an interstitial ad should be displayed.

Deprecated