ListView

列表使用

body: new ListView(
          children: <Widget>[
            /*new Image.network(
                'https://cdn2.jianshu.io/assets/web/banner-s-club-aa8bdf19f8cf729a759da42e4a96f366.png'),
            new Image.network(
                'https://cdn2.jianshu.io/assets/web/banner-s-7-1a0222c91694a1f38e610be4bf9669be.png'),
             */ //图片列表使用
            new ListTile(
              leading: new Icon(
                Icons.perm_camera_mic,
              ),
              title: new Text('perm_camera_mic'),
            ),
            new ListTile(
              leading: new Icon(
                Icons.perm_phone_msg,
              ),
              title: new Text('perm_phone_msg'),
            ),
          ],
        ),

横向列表：ListView组件里加一个scrollDirection属性

body: new Center(
            child: new Container(
                height: 200.0,
                child: new ListView(
                  scrollDirection: Axis.horizontal, //Axis.vertical:纵向列表
                  children: <Widget>[
                    new Container(
                      width: 230.0,
                      color: Colors.lightBlue,
                    ),
                    new Container(
                      width: 230.0,
                      color: Colors.lightGreen,
                    ),
                  ],
                ))),

Dart语言List的声明方式：

• var myList = List(): 非固定长度的声明。
• var myList = List(2): 固定长度的声明。
• var myList= List<String>():固定类型的声明方式。
• var myList = [1,2,3]: 对List直接赋值

import 'package:flutter/material.dart';

void main() =>
    runApp(MyApp(items: List<String>.generate(1000, (i) => 'item $i')));

class MyApp extends StatelessWidget {
  final List<String> items;
  MyApp({Key key, @required this.items}) : super(key: key);
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'ListView Dome',
      home: new Scaffold(
        appBar: new AppBar(title: new Text('ListView Widget')),
        body: new ListView.builder(
            itemCount: items.length,
            itemBuilder: (context, index) {
              return new ListTile(
                title: new Text('${items[index]}'),
              );
            }),
      ),
    );
  }
}