import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  @override
  MyHomePageState createState() => MyHomePageState();
}

class MyHomePageState extends State<MyHomePage> {
  final items = [for (int i = 0; i < 10; i++) 'Item $i'];

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('SliverReorderableList Example'),
      ),
      body: CustomScrollView(
        slivers: [
          SliverReorderableList(
            itemBuilder: (context, index) {
              return ReorderableDragStartListener(
                key: ValueKey(items[index]),
                index: index,
                child: _Tile(
                  Text(items[index]),
                ),
              );
            },
            itemCount: items.length,
            onReorder: (oldIndex, newIndex) {
              setState(() {
                if (newIndex > oldIndex) {
                  newIndex -= 1;
                }
                final item = items.removeAt(oldIndex);
                items.insert(newIndex, item);
              });
            },
            // Comment `prototypeItem` to fix the issue
            prototypeItem: const _Tile(
              Text('Item 0'),
            ),
          ),
        ],
      ),
    );
  }
}

final class _Tile extends StatelessWidget {
  const _Tile(this.title);

  final Widget title;

  @override
  Widget build(BuildContext context) {
    return Material(
      child: ListTile(
        title: title,
        trailing: const Icon(Icons.drag_handle),
      ),
    );
  }
}