Flutter笔记（4）flutter创建应用的主题-全局/局部主题

下面的这段设置的是全局的主题，以Hello World为例

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Welcome to Flutter',
      theme: new ThemeData(
        brightness: Brightness.dark,
        primaryColor: Colors.lightBlue[800],
        accentColor: Colors.cyan[600],
      ),
      home: Scaffold(
        appBar: AppBar(
          title: Text('Welcome to Flutter '),
        ),
        body: Center(
          child: Text('Hello World'),
        ),
      ),
    );
  }
}

效果图

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