GridView，顾名思义就是我们用来做网格的，通常我们用来做相册，或者网格状的展示栏
上码
import 'package:flutter/material.dart'; void main() => runApp(MyApp()); class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( title: 'roadkiller', home: Scaffold( appBar: new AppBar( title: new Text('roadkiller'), ), body:GridView( padding: new EdgeInsets.all(3.0),//学过前端好理解吧 gridDelegate: SliverGridDelegateWithFixedCrossAxisCount( crossAxisCount:2,//一行放几幅图片 mainAxisSpacing: 2.0,//行距 crossAxisSpacing: 2.0,//列距 childAspectRatio: 0.75//图片宽高比，因为海报一般长：宽是4:3嘛所以我搞的是这样 ), children: <Widget>[ new Image.network('https://ss0.baidu.com/6ONWsjip0QIZ8tyhnq/it/u=3246509238,1077330305&fm=58&s=DFD513C6886286D432620FBC0300301F'), new Image.network('https://ss2.baidu.com/6ONYsjip0QIZ8tyhnq/it/u=2512763846,3067531314&fm=58&s=9102AEFBD3A7E4EE4437527303008074'), new Image.network('https://ss1.baidu.com/6ONXsjip0QIZ8tyhnq/it/u=2585813656,2994285865&fm=58&s=C5649A468F378ECC266911AC03008012'), new Image.network('https://ss2.baidu.com/6ONYsjip0QIZ8tyhnq/it/u=3351456143,3085413485&fm=58&s=0CC0F804845BBFCE320951990300C082'), new Image.network('https://ss0.baidu.com/6ONWsjip0QIZ8tyhnq/it/u=581555814,2183385336&fm=58&s=2740D94FDE3283DC1259A91301008092'), new Image.network('https://ss0.baidu.com/6ONWsjip0QIZ8tyhnq/it/u=3527165871,1016449403&fm=58&s=787B20C402B38BC456651C8D0300E088'), new Image.network('https://ss2.baidu.com/6ONYsjip0QIZ8tyhnq/it/u=2801239214,2575519245&fm=58'), new Image.network('https://ss1.baidu.com/6ONXsjip0QIZ8tyhnq/it/u=3895436776,1493313546&fm=58&s=C115C730589647FF5E89F0C5030070A1'), new Image.network('https://ss0.baidu.com/6ONWsjip0QIZ8tyhnq/it/u=3343253172,1276100043&fm=58&s=9DB5109B1C1247F56898AFCA03005037'), new Image.network('https://ss0.baidu.com/6ONWsjip0QIZ8tyhnq/it/u=1588364103,2036988885&fm=58&s=DFDDA844965203D4CFA4599303008099'), ], ) ), ); } } i
