Instance Method

application(_:willChangeStatusBarFrame:)

Tells the delegate when the frame of the status bar is about to change.

Declaration

optional func application(_ application: UIApplication, willChangeStatusBarFrame newStatusBarFrame: CGRect)

Parameters

application

Your singleton app object.

newStatusBarFrame

The changed frame of the status bar, in screen coordinates.

Discussion

The app calls this method when it receives a setStatusBarOrientation(_:animated:) message and is about to change the interface orientation.

After calling this method, the app also posts a willChangeStatusBarFrameNotification notification to give interested objects a chance to respond to the change.

See Also

Managing Interface Geometry

func application(UIApplication, supportedInterfaceOrientationsFor: UIWindow?) -> UIInterfaceOrientationMask

Asks the delegate for the interface orientations to use for the view controllers in the specified window.

func application(UIApplication, willChangeStatusBarOrientation: UIInterfaceOrientation, duration: TimeInterval)

Tells the delegate when the interface orientation of the status bar is about to change.

func application(UIApplication, didChangeStatusBarOrientation: UIInterfaceOrientation)

Tells the delegate when the interface orientation of the status bar has changed.

func application(UIApplication, didChangeStatusBarFrame: CGRect)

Tells the delegate when the frame of the status bar has changed.

enum UIInterfaceOrientation

The orientation of the app's user interface.

struct UIInterfaceOrientationMask

These constants are mask bits for specifying a view controller’s supported interface orientations.

class let invalidInterfaceOrientationException: NSExceptionName

This exception is thrown if a view controller or the app returns 0 instead of a valid set of supported interface orientation values. It is also thrown if the orientation returned by a view controller’s preferredInterfaceOrientationForPresentation method does not match one of the view controller’s supported orientations.