ACTION_ACCESSIBILITY_FOCUS
Action that gives accessibility focus to the node.
The UI element that implements this should send a TYPE_VIEW_ACCESSIBILITY_FOCUSED event if successful. The node that is focused should return true
for isAccessibilityFocused.
This is intended to be used by screen readers to assist with user navigation. Apps changing focus can confuse screen readers, so the resulting behavior can vary by device and screen reader version.
This is distinct from ACTION_FOCUS, which refers to system focus. System focus is typically used to convey targets for keyboard navigation.