Instance Method

willRotate(to:duration:)

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

Declaration

func willRotate(to toInterfaceOrientation: UIInterfaceOrientation, duration: TimeInterval)

Parameters

toInterfaceOrientation

The new orientation for the user interface. The possible values are described in UIInterfaceOrientation.

duration

The duration of the pending rotation, measured in seconds.

Discussion

Subclasses may override this method to perform additional actions immediately prior to the rotation. For example, you might use this method to disable view interactions, stop media playback, or temporarily turn off expensive drawing or live updates. You might also use it to swap the current view for one that reflects the new interface orientation. When this method is called, the interfaceOrientation property still contains the view'€™s original orientation. Your implementation of this method must call super at some point during its execution.

This method is called regardless of whether your code performs one-step or two-step rotations.

See Also

Methods

func registerForPreviewing(with: UIViewControllerPreviewingDelegate, sourceView: UIView) -> UIViewControllerPreviewing

Registers a view controller to participate with 3D Touch preview (peek) and commit (pop).

Deprecated
func unregisterForPreviewing(withContext: UIViewControllerPreviewing)

Unregisters a previously registered view controller identified by its context object.

Deprecated
func canPerformUnwindSegueAction(Selector, from: UIViewController, withSender: Any) -> Bool

Called on a view controller to determine whether it wants to respond to an unwind action.

Deprecated
func didRotate(from: UIInterfaceOrientation)

Sent to the view controller after the user interface rotates.

Deprecated
func dismissMoviePlayerViewControllerAnimated()

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

Deprecated
func forUnwindSegueAction(Selector, from: UIViewController, withSender: Any?) -> UIViewController?

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

Deprecated
class func prepareInterstitialAds()

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

Deprecated
func presentMoviePlayerViewControllerAnimated(MPMoviePlayerViewController!)

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

Deprecated
func requestInterstitialAdPresentation() -> Bool

Asks the framework to display an interstitial ad.

Deprecated
func rotatingFooterView() -> UIView?

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

Deprecated
func rotatingHeaderView() -> UIView?

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

Deprecated
func segueForUnwinding(to: UIViewController, from: UIViewController, identifier: String?) -> UIStoryboardSegue?

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

Deprecated
func shouldAutomaticallyForwardRotationMethods() -> Bool

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

Deprecated
func willAnimateRotation(to: UIInterfaceOrientation, duration: TimeInterval)

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

Deprecated