一、 继承StatelessWidget组件
import 'package:Flutter/material.dart'; void main() { runApp(MyApp()); } class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { //Todo:implementbuild return Center( child: Text( "My name is maple", textDirection: TextDirection.ltr, ), ); } }
二、Text组件
import 'package:Flutter/material.dart'; void main() { runApp(MyApp()); } class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { //Todo:implementbuild return Center( child: Text( "My name is maple", textDirection: TextDirection.ltr, style: TextStyle( fontSize: 40.0, //字体大小 fontWeight: FontWeight.bold, //字体粗细 color: Colors.yellow //字体颜色 ), ), ); } }
三、MaterialApp顶层组件
import 'package:Flutter/material.dart'; void main() { runApp(MyApp()); } class MyApp extends StatelessWidget { final routes = { '/': (BuildContext context) => new Home(), }; @override Widget build(BuildContext context) { //Todo:implementbuild return MaterialApp( title: "标题", //主题 theme: ThemeData(primarySwatch: Colors.red, brightness: Brightness.light), // 主页 // home: Home(), // 路由 routes: routes); } } class Home extends StatelessWidget { @override Widget build(BuildContext context) { // Todo: implement build return Center( child: Text( "My name is maple", textDirection: TextDirection.ltr, style: TextStyle( fontSize: 30.0, //字体大小 fontWeight: FontWeight.bold, //字体粗细 color: Colors.yellow //字体颜色 ), ), ); } }
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