网站制作 东莞,gta 买房网站建设中,网站推广临沂,公司品牌网络推广方案1、Center介绍
Center将子控件放在其内部中心#xff0c;里面只能放一个child#xff0c;但是child里面可以放Container Center继承勒Align#xff0c;然后Align默认是center. 2、测试代码
测试1、 overrideWidget build(BuildContext context) {return MaterialApp(title…1、Center介绍
Center将子控件放在其内部中心里面只能放一个child但是child里面可以放Container Center继承勒Align然后Align默认是center. 2、测试代码
测试1、 overrideWidget build(BuildContext context) {return MaterialApp(title: open url,home: Scaffold(appBar: AppBar(// Here we take the value from the MyHomePage object that was created by// the App.build method, and use it to set our appbar title.title: Text(hello flutter),),body: Center(child: Text(chenyu),),),);}
} 测试2、 overrideWidget build(BuildContext context) {return MaterialApp(title: open url,home: Scaffold(appBar: AppBar(// Here we take the value from the MyHomePage object that was created by// the App.build method, and use it to set our appbar title.title: Text(hello flutter),),body: Center(child: Container(color: Colors.blue,width: 200,height: 200,),),),);}
} 3、运行结果
测试1效果、 测试2效果、
