ListView as main widget

main.dart

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

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

class MyApp extends StatelessWidget {
  MyApp({Key key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
        home: ListView.builder(
            scrollDirection: Axis.vertical,
            shrinkWrap: true,
            itemCount: 20,
            itemBuilder: (context, index) {
              var text = 'Card $index';
              print('Building card $text');
              return Card(
                  child: Container(
                      height: 130,
                      child: Center(
                        child: Text(text),
                      )));
            }));
  }
}