颤振-屏幕未滚动

我插入了6张卡，但是无法滚动屏幕。

根据下图，页脚中出现红色条纹，并且屏幕不滚动。

滚动屏幕缺少了什么？

主镖

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
      title: "Myapp",
      home: new HomePage(),
    );
  }
}

class HomePage extends StatelessWidget {
  @override
  Widget build(BuildContext context) => new Scaffold(
    appBar: new AppBar(
      backgroundColor: new Color(0xFF26C6DA),
    ),
    body: new Column(
      children: <Widget>[
        new Card(
          child: new Column(
            mainAxisSize: MainAxisSize.min,
            children: <Widget>[
              const ListTile(
                leading: const Icon(Icons.album),
                title: const Text('The Enchanted Nightingale'),
                subtitle: const Text('Music by Julie Gable. Lyrics by Sidney Stein.'),
              ),
            ],
          ),
        ),
        ...
        ...
        ...
      ],
    )    
  );
}