Global Variable

UIAccessibilityScreenChangedNotification

Posted by an application when a new view appears that makes up a major portion of the screen.

Declaration

UIAccessibilityNotifications UIAccessibilityScreenChangedNotification;

Discussion

This notification includes a parameter, which is either an NSString object that VoiceOver speaks or an accessibility element that VoiceOver moves to. Post this notification using the UIAccessibilityPostNotification function.

See Also

UI Changes

UIAccessibilityLayoutChangedNotification

Posted by an application when the layout of a screen changes, such as when an element appears or disappears.

UIAccessibilityPageScrolledNotification

Posted by an application when a scroll action has completed and the accessibilityScroll: method has been called.

UIAccessibilitySwitchControlStatusDidChangeNotification

Posted by UIKit when the system’s Switch Control setting has changed.

UIAccessibilityElementFocusedNotification

Posted by UIKit when an assistive technology focuses on an element.

UIAccessibilityReduceTransparencyStatusDidChangeNotification

Posted by UIKit when the system’s Reduce Transparency system setting has changed.