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Chapter 22. Drag-and-drop > The shadow builder
22.3. The shadow builder
An important aspect of the drag-and-drop operation is the visual feedback provided during the drag or data move. When the drag operation is started for a given view by calling the startDrag() method, a View.DragShadowBuilder callback is specified. The DragShadowBuilder is called by the system to generate a drag shadow for the view being dragged.
DragShadowBuilder defines two kinds of constructors: one that takes a View for an argument, and a no-argument constructor with no associated view. DragShadowBuilder defines three methods:
