isTextSelectable
Gets if the node has selectable text.
Services should use ACTION_SET_SELECTION for selection. Editable text nodes must also be selectable. But not all UIs will populate this field, so services should consider 'isTextSelectable | isEditable' to ensure they don't miss nodes with selectable text.
Compatibility:
- Api <19: Returns false.
Return
True if the node has selectable text.