Global Variable

UIWindowDidBecomeKeyNotification

Posted whenever a UIWindow object becomes the key window.

Declaration

const NSNotificationName UIWindowDidBecomeKeyNotification;

Discussion

The notification object is the window object that has become key. This notification does not contain a userInfo dictionary.

See Also

Responding to Window-Related Notifications

UIWindowDidBecomeVisibleNotification

Posted when an UIWindow object becomes visible.

UIWindowDidBecomeHiddenNotification

Posted when an UIWindow object becomes hidden.

UIWindowDidResignKeyNotification

Posted whenever a UIWindow object resigns its status as main window.