drag abstract method
- DragStartDetails details,
- VoidCallback dragCancelCallback
Start a drag activity corresponding to the given DragStartDetails.
The onDragCanceled
argument will be invoked if the drag is ended
prematurely (e.g. from another activity taking over). See
ScrollDragController.onDragCanceled for details.
Implementation
Drag drag(DragStartDetails details, VoidCallback dragCancelCallback);