public final class AccessibilityManager extends Object
System level service that serves as an event dispatch for {@link AccessibilityEvent}s.
Such events are generated when something notable happens in the user interface,
for example an {@link android.app.Activity} starts, the focus or selection of a
{@link android.view.View} changes etc. Parties interested in handling accessibility
events implement and register an accessibility service which extends
{@code android.accessibilityservice.AccessibilityService}.