Action constant returned by DragEvent.Action: Signals that the user has moved the drag shadow outside the bounding box of the View. The View can react by changing its appearance in a way that tells the user that View is no longer the immediate drop target.
After the system sends an ACTION_DRAG_EXITED event to the View, the View receives no more ACTION_DRAG_LOCATION events until the user drags the drag shadow back over the View.