Global Variable

UIWindowDidBecomeVisibleNotification

Posted when an UIWindow object becomes visible.

Declaration

const NSNotificationName UIWindowDidBecomeVisibleNotification;

Discussion

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

Switching between apps does not generate visibility-related notifications for windows. Window visibility changes reflect changes to the window’s hidden property and reflect only the window’s visibility within the app.

See Also

Responding to Window-Related Notifications

UIWindowDidBecomeHiddenNotification

Posted when an UIWindow object becomes hidden.

UIWindowDidBecomeKeyNotification

Posted whenever a UIWindow object becomes the key window.

UIWindowDidResignKeyNotification

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