1、首先,创建全局常量类constants,用于设置背景色、默认内边距等。
<code>const kPrimaryColor = Color(0xFF6F35A5); const kPrimaryLightColor = Color(0xFFF1E6FF); const double defaultPadding = 16.0;</code>
2、在项目根目录下创建assets文件夹,添加图片。如下图所示:
3、在配置文件添加svg图片插件库:
<code> flutter_svg: ^1.1.0</code>
4、创建引导页--测试
<code>import 'package:flutter/material.dart'; import 'package:hot_shop/constants.dart'; main()=>runApp(const MyApp()); class MyApp extends StatelessWidget { const MyApp({Key? key}) : super(key: key); @override Widget build(BuildContext context) { return MaterialApp( debugShowCheckedModeBanner: false, title: "好物商城", theme: ThemeData( primaryColor: kPrimaryColor, //全局主题颜色 scaffoldBackgroundColor: Colors.white,//页面背景色 elevatedButtonTheme: ElevatedButtonThemeData( //全局按钮主题设置 style: ElevatedButton.styleFrom( elevation: 0, primary: kPrimaryColor, shape: const StadiumBorder(),//体育场形状 maximumSize: const Size(double.infinity, 56), minimumSize: const Size(double.infinity, 56) ) ), inputDecorationTheme: const InputDecorationTheme( //全局输入框主题设置 filled: true, fillColor: kPrimaryLightColor,//背景色 iconColor: kPrimaryColor,//图标颜色 prefixIconColor: kPrimaryColor,//前置图标颜色 contentPadding: EdgeInsets.symmetric(vertical: defaultPadding,horizontal: defaultPadding), border: OutlineInputBorder( borderRadius: BorderRadius.all(Radius.circular(30)), borderSide: BorderSide.none ) ) ), home: const MyHomePage(), ); } } class MyHomePage extends StatefulWidget { const MyHomePage({Key? key}) : super(key: key); @override State<MyHomePage> createState() => _MyHomePageState(); } class _MyHomePageState extends State<MyHomePage> { @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: const Text("欢迎页",style: TextStyle(fontSize: 18,fontWeight: FontWeight.w500)), centerTitle: true, ), body: Padding( padding: const EdgeInsets.all(8.0), child: Center( child: TextField( onTap: (){}, decoration: const InputDecoration( //icon: Icon(Icons.person), //输入框之外的图标 prefixIcon: Icon(Icons.person),//输入框之内的图标 //labelText: "用户名", //标签提示 hintText: "请输入用户名", //隐藏提示 ), ), ), ), ); } }</code>
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