Action constant returned by DragEvent.Action: Signals to a View that the drag point has entered the bounding box of the View. The system stops sending ACTION_DRAG_LOCATION events to a View once the user moves the drag shadow out of the View object's bounding box. If the user moves the drag shadow back into the View object's bounding box, the View receives an ACTION_DRAG_ENTERED again before receiving any more ACTION_DRAG_LOCATION events.

If the View can accept a drop, it can react to ACTION_DRAG_ENTERED by changing its appearance in a way that tells the user that the View is the current drop target.