Instance Method

willMove(toWindow:)

Tells the view that its window object is about to change.

Declaration

func willMove(toWindow newWindow: UIWindow?)

Parameters

newWindow

The window object that will be at the root of the receiver's new view hierarchy. This parameter may be nil.

Discussion

The default implementation of this method does nothing. Subclasses can override it to perform additional actions whenever the window changes.

See Also

Observing View-Related Changes

func didAddSubview(UIView)

Tells the view that a subview was added.

func willRemoveSubview(UIView)

Tells the view that a subview is about to be removed.

func willMove(toSuperview: UIView?)

Tells the view that its superview is about to change to the specified superview.

func didMoveToSuperview()

Tells the view that its superview changed.

func didMoveToWindow()

Tells the view that its window object changed.