SliverReorderableListState class

The state for a sliver list that allows the user to interactively reorder the list items.

An app that needs to start a new item drag or cancel an existing one can refer to the SliverReorderableList's state with a global key:

// (e.g. in a stateful widget)
GlobalKey<SliverReorderableListState> listKey = GlobalKey<SliverReorderableListState>();

// ...

@override
Widget build(BuildContext context) {
  return SliverReorderableList(
    key: listKey,
    itemBuilder: (BuildContext context, int index) => const SizedBox(height: 10.0),
    itemCount: 5,
    onReorderItem: (int oldIndex, int newIndex) {
       // ...
    },
  );
}

// ...

void _stop() {
  listKey.currentState!.cancelReorder();
}

ReorderableDragStartListener and ReorderableDelayedDragStartListener refer to their SliverReorderableList with the static SliverReorderableList.of method.