core/java/android/view/accessibility/package.html - platform/frameworks/base - Git at Google

 <html>
 <body>
 <p>
   The classes in this package are used to represent screen content and changes to it
   as well as APIs for querying the global accessibility state of the system.
 </p>
 <p>
   {@link android.view.accessibility.AccessibilityEvent}s are sent by the system when
   something notable happens in the user interface. For example, when a
   {@link android.widget.Button} is clicked, a {@link android.view.View} is focused, etc.
 </p>
 <p>
   {@link android.view.accessibility.AccessibilityRecord} contains information
   about state change of its source {@link android.view.View}. When a view fires
   an accessibility event it requests from its parent to dispatch the
   constructed event. The parent may optionally append a record for itself for
   providing more context to {@link android.accessibilityservice.AccessibilityService}s.
   Hence, accessibility services can facilitate additional accessibility records
   to enhance feedback.
 </p>
 <p>
   {@link android.view.accessibility.AccessibilityNodeInfo} represents a node of the
   window content as well as actions that can be requested from its source. From the point
   of view of an {@link android.accessibilityservice.AccessibilityService} a window content is
   presented as tree of accessibility node info which may or may not map one-to-one
   to the view hierarchy. In other words, a custom view is free to report itself as
   a tree of accessibility node info.
 </p>
 <p>
   {@link android.view.accessibility.AccessibilityManager} is a system level service that
   serves as an event dispatch for  {@link android.view.accessibility.AccessibilityEvent}s,
   and provides facilities for querying the accessibility state of the system. Accessibility
   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 {@link android.accessibilityservice.AccessibilityService}.
 </p>
 <div class="special reference">
 <h3>Developer Guides</h3>
 <p>For more information about making applications accessible, read the
 <a href="{@docRoot}guide/topics/ui/accessibility/index.html">Accessibility</a>
 developer guide.</p>
 </div>

 </body>
 </html>
	<html>
	<body>
	<p>
	The classes in this package are used to represent screen content and changes to it
	as well as APIs for querying the global accessibility state of the system.
	</p>
	<p>
	{@link android.view.accessibility.AccessibilityEvent}s are sent by the system when
	something notable happens in the user interface. For example, when a
	{@link android.widget.Button} is clicked, a {@link android.view.View} is focused, etc.
	</p>
	<p>
	{@link android.view.accessibility.AccessibilityRecord} contains information
	about state change of its source {@link android.view.View}. When a view fires
	an accessibility event it requests from its parent to dispatch the
	constructed event. The parent may optionally append a record for itself for
	providing more context to {@link android.accessibilityservice.AccessibilityService}s.
	Hence, accessibility services can facilitate additional accessibility records
	to enhance feedback.
	</p>
	<p>
	{@link android.view.accessibility.AccessibilityNodeInfo} represents a node of the
	window content as well as actions that can be requested from its source. From the point
	of view of an {@link android.accessibilityservice.AccessibilityService} a window content is
	presented as tree of accessibility node info which may or may not map one-to-one
	to the view hierarchy. In other words, a custom view is free to report itself as
	a tree of accessibility node info.
	</p>
	<p>
	{@link android.view.accessibility.AccessibilityManager} is a system level service that
	serves as an event dispatch for {@link android.view.accessibility.AccessibilityEvent}s,
	and provides facilities for querying the accessibility state of the system. Accessibility
	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 {@link android.accessibilityservice.AccessibilityService}.
	</p>
	<div class="special reference">
	<h3>Developer Guides</h3>
	<p>For more information about making applications accessible, read the
	<a href="{@docRoot}guide/topics/ui/accessibility/index.html">Accessibility</a>
	developer guide.</p>
	</div>

	</body>
	</html>