public final class UIAccessibilityScrollDirection
extends java.lang.Object
If the user interface requires a scrolling action (e.g. turning the page of a book), a view in the view
hierarchy should implement the following method. The return result indicates whether the action
succeeded for that direction. If the action failed, the method will be called on a view higher
in the hierarchy. If the action succeeds, UIAccessibilityPageScrolledNotification must be posted after
the scrolling completes.
default == NO