MyApp类扩展了StatelessWidget {
@ override
小部件构建(BuildContext上下文){
返回MaterialApp(
家庭:脚手架(
body:Column(
mainAxisAlignment:MainAxisAlignment.center,
孩子:[
Center(
child:CircleAvatar(
半径:40.0,
child:Image.asset('images / pic.jpg'),
),
),
Text(
“” Michael dub“,
),
Text(“ FLUTTER DEVELOPER”),
Container(
宽度:350.0,
高度:70.0,
子:Card(
child:Row(
孩子:[
Icon(
图标电话,
),
Text(
“ + 12-345-678-910”,
textAlign:TextAlign.center,
),