android.accessibilityservice.package.html Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of android-all Show documentation

A library jar that provides APIs for Applications written for the Google Android Platform.

There is a newer version: 14-robolectric-10818077




  The classes in this package are used for development of accessibility service that
  provide alternative or augmented feedback to the user.


  An {@link android.accessibilityservice.AccessibilityService} runs in the background and
  receives callbacks by the system when {@link android.view.accessibility.AccessibilityEvent}s
  are fired. Such events denote some state transition in the user interface, for example, the
  focus has changed, a button has been clicked, etc. Such a service can optionally request the
  capability for querying the content of the active window. Development of an accessibility
  service requires extends this class and implements its abstract methods.


  An {@link android.accessibilityservice.AccessibilityServiceInfo} describes an
  {@link android.accessibilityservice.AccessibilityService}. The system notifies an
  AccessibilityService for {@link android.view.accessibility.AccessibilityEvent}s
  according to the information encapsulated in this class.