onDrag property

Stream<DraggableEvent> onDrag

Fired periodically throughout the drag operation.

Implementation

Stream<DraggableEvent> get onDrag {
  if (_onDrag == null) {
    _onDrag = StreamController<DraggableEvent>.broadcast(
        sync: true, onCancel: () => _onDrag = null);
  }
  return _onDrag!.stream;
}