容器组件示例

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37

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: '容器组件示例',       home: Scaffold(         appBar: AppBar(           title: Text('容器组件示例'),         ),         body: Center(           child: Container(             width: 200.0,             height: 200,             decoration: BoxDecoration(               color: Colors.white,               border: new Border.all(                 color: Colors.grey,                 width: 8.0,               ),               borderRadius: const BorderRadius.all(const Radius.circular(8.0))             ),             child: Text(               'Flutter',               textAlign: TextAlign.center,               style: TextStyle(fontSize: 28.0),             ),           ),         ),       ),     );   } }