AccessibilityActionCompat

A class defining an action that can be performed on an AccessibilityNodeInfo. Each action has a unique id and a label.

There are three categories of actions:

• Standard actions - These are actions that are reported and handled by the standard UI widgets in the platform. Each standard action is associated with a resource id, e.g. accessibilityActionScrollUp. Note that actions were formerly associated with static constants defined in this class, e.g. ACTION_FOCUS. These actions will have null labels.
• Custom actions action - These are actions that are reported and handled by custom widgets. i.e. ones that are not part of the UI toolkit. For example, an application may define a custom action for clearing the user history.
• Overriden standard actions - These are actions that override standard actions to customize them. For example, an app may add a label to the standard ACTION_CLICK action to indicate to the user that this action clears browsing history.

Note: Views which support these actions should invoke setImportantForAccessibility with IMPORTANT_FOR_ACCESSIBILITY_YES to ensure an android.accessibilityservice.AccessibilityService can discover the set of supported actions.