flutter-卡片组件布局

import 'package:flutter/material.dart';

void main ()=>runApp(MyApp());

class MyApp extends StatelessWidget{
  @override
  Widget build(BuildContext context){
    
    var card=Card(
      child: Column(
        children: <Widget>[
          ListTile(
               title:new Text('aaaaaaaaaaa',style: TextStyle(fontWeight: FontWeight.w500),),
               subtitle: new Text('aaa:123213123321'),
               leading: new Icon(Icons.account_box,color: Colors.lightBlue,),
             ),
             new Divider(),
              ListTile(
               title:new Text('bbbbbbbbbb',style: TextStyle(fontWeight: FontWeight.w500),),
               subtitle: new Text('bbb:1513938888'),
               leading: new Icon(Icons.account_box,color: Colors.lightBlue,),
             ),
             new Divider(),
              ListTile(
               title:new Text('ccccccccccccc',style: TextStyle(fontWeight: FontWeight.w500),),
               subtitle: new Text('ccc:1513938888'),
               leading: new Icon(Icons.account_box,color: Colors.lightBlue,),
             ),
             new Divider(),
        ],
      ),
    );

    return MaterialApp(
      title:"layout",
      home:Scaffold(
        appBar: AppBar(
          title:Text('层叠布局Stack')
        ),
        body: card
      )
    );
  }
}