Global Variable


Posted when an UIWindow object becomes hidden.


const NSNotificationName UIWindowDidBecomeHiddenNotification;


The notification object is the window object that has become hidden. 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


Posted when an UIWindow object becomes visible.


Posted whenever a UIWindow object becomes the key window.


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

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