Global Variable

UIAccessibilityAnnouncementNotification

Posted by an app when an announcement needs to be conveyed to the assistive technology.

Declaration

UIAccessibilityNotifications UIAccessibilityAnnouncementNotification;

Discussion

This notification includes a parameter, which is an NSString object that contains the announcement. An assistive technology outputs the announcement string contained in the parameter.

Use this notification to provide accessibility information about events that do not update the application user interface (UI), or that update the UI only briefly.

Post this notification using the UIAccessibilityPostNotification function.

See Also

VoiceOver

UIAccessibilityVoiceOverStatusDidChangeNotification

Posted by UIKit when VoiceOver starts or stops.

UIAccessibilityAnnouncementDidFinishNotification

Posted by UIKit when the system has finished reading an announcement.

UIAccessibilityVoiceOverStatusChanged

Posted by UIKit when VoiceOver starts or stops. This notification does not include a parameter.

Deprecated