OnDragUpdate typedef

OnDragUpdate = void Function(int dragIndex, Offset position, Offset delta)

Called when the position of the dragged widget changes.

dragIndex is the index of the item that is dragged. position is the current position of the pointer in the global coordinate system. delta is the offset of the current position relative to the position of the last drag update call.

Implementation

typedef OnDragUpdate = void Function(
    int dragIndex, Offset position, Offset delta);