flutter Icon

import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    // TODO: implement build
    return new MaterialApp(
      title: 'flutter demo',
      home: _home(),
    );
  }
}

class _home extends StatefulWidget {
  @override
  State<StatefulWidget> createState() {
    return _homeState();
  }
}

class _homeState extends State<_home> {
  @override
  Widget build(BuildContext context) {
    // TODO: implement build
    return new Scaffold(
        appBar: new AppBar(
          title: Text("title"),
          centerTitle: true,
        ),
        body: new Column(

          //垂直布局
          children: <Widget>[
            Icon(
              Icons.favorite,
              color: Colors.pink,
              size: 24.0,
              semanticLabel: 'Text to announce in accessibility modes',
            ),
            Icon(
              Icons.audiotrack,
              color: Colors.green,
              size: 30.0,
              textDirection: TextDirection.ltr,
            ),//IconData(0xe3a1, fontFamily: 'MaterialIcons')
            Icon(IconData(0xe3a1, fontFamily: 'MaterialIcons',matchTextDirection: true),color: Colors.red,size: 30,textDirection: TextDirection.rtl,),
            Icon(
              Icons.beach_access,
              color: Colors.blue,
              size: 36.0,
            ),
            Icon(
              Icons.bluetooth,
              color: Colors.blue,
              size: 48.0,
            ),
            Icon(Icons.accessible,),//默认是黑色
            Icon(Icons.accessible,color: Colors.green,),//设置图标为绿色
            Icon(Icons.accessible,color: Colors.red,),//设置图标为红色

            Icon(Icons.accessible,color: Colors.red,size: 10,),//设置图标大小
            Icon(Icons.accessible,color: Colors.red,),//size默认24
            Icon(Icons.accessible,color: Colors.red,size: 30,),//设置图标大小

            Icon(IconData(0xe914, fontFamily: 'MaterialIcons',matchTextDirection: true),color: Colors.red,size: 30,textDirection: TextDirection.ltr,),
            Icon(IconData(0xe914, fontFamily: 'MaterialIcons',matchTextDirection: true),color: Colors.red,size: 30,textDirection: TextDirection.rtl,),
          ],
        ));

  }
}

跑起来吧少年。