(informal protocol)
Adopted by | |
Framework | /System/Library/Frameworks/UIKit.framework |
Companion guide | |
Declared in | UIAccessibility.h |
The UIAccessibilityAction
informal protocol provides a way for accessibility elements to support specific actions. For example, for UI elements such as sliders and picker views, users can select a value by manipulating the element through a range of values. To make such elements accessible, you first need to characterize it by including the UIAccessibilityTraitAdjustable
trait. Then, you must implement the methods of the UIAccessibilityAction
protocol. When you do this, assistive technology users can adjust the element using technology-specific gestures.
Last updated: 2010-05-18