Listview.build 不在 Web 上滚动

Question

我只在 Dartpad 上试过，Listview 不滚动！我的代码基于 https://flutter.dev/docs/cookbook/lists/long-lists.

我的初衷是测试水平滚动，结果发现垂直滚动也不行！

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

void main() {
  runApp(
    MyApp(
      items: List<String>.generate(100, (i) => 'Item $i'),
    ),
  );
}

class MyApp extends StatelessWidget {
  final List<String> items;

  const 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(
          itemCount: items.length,
          itemBuilder: (context, index) {
            return ListTile(
              title: Text(items[index]),
            );
          },
        ),
      ),
    );
  }
}

Answer 1

用滚动条换行

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

void main() {
  runApp(
    MyApp(
      items: List<String>.generate(100, (i) => 'Item $i'),
    ),
  );
}

class MyApp extends StatelessWidget {
  final List<String> items;

  const 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: Scrollbar(
          child: ListView.builder(
            itemCount: items.length,
            itemBuilder: (context, index) {
              return ListTile(
                title: Text(items[index]),
              );
            },
          ),
        ),
      ),
    );
  }
}

Listview.build 不在 Web 上滚动

Listview.build does not scroll on Web

flutter

flutter-layout

flutter-web