big scroll test

main.dart

import 'dart:math';
import 'package:flutter/material.dart';

void main() {
  runApp(
    MyApp(
      items: List<String>.generate(130, (i) => 'Item $i'),
    ),
  );
}

class MyApp extends StatelessWidget {
  final List<String> items;
  final _scrollController = ScrollController();

  MyApp({Key? key, required this.items}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    const title = 'Long List';

    return MaterialApp(
      title: title,
      home: Scaffold(
        appBar: AppBar(
          title: const Text(title),
        ),
        body: ListView.builder(
          clipBehavior: Clip.none,
          itemCount: items.length,
          padding: const EdgeInsets.all(0),
          itemBuilder: (context, index) {
            return ListTile(
              minVerticalPadding: 0,
              contentPadding: const EdgeInsets.all(0),
              title: Container(
                color:
                    Colors.primaries[Random().nextInt(Colors.primaries.length)],
                padding: EdgeInsets.zero,
                height: 100.0,
                child: ListView.builder(
                  scrollDirection: Axis.horizontal,
                  controller: _scrollController,
                  itemCount: 120,
                  padding: const EdgeInsets.all(0),
                  itemBuilder: (context, index) {
                    return Container(
                      padding: EdgeInsets.zero,
                      width: 50 + Random().nextDouble() * 100.0,
                      child: Card(
                        color: Colors.primaries[
                            Random().nextInt(Colors.primaries.length)],
                        child: Text(items[index]),
                        margin: const EdgeInsets.all(0),
                        shape: const Border(
                            right: BorderSide(color: Colors.white24, width: 5)),
                      ),
                    );
                  },
                ),
              ),
            );
          },
        ),
      ),
    );
  }
}