createNewPointerState method Null safety

  1. @protected
  2. @factory
MultiDragPointerState createNewPointerState(
  1. PointerDownEvent event
)

Subclasses should override this method to create per-pointer state objects to track the pointer associated with the given event.

Implementation

@protected
@factory
MultiDragPointerState createNewPointerState(PointerDownEvent event);