网站图怎么做才能小而清晰/宁波seo快速优化教程

1.基本路由跳转：文件引入在你要跳转的页面引入

        ElevatedButton(onPressed: () {Navigator.of(context).push(MaterialPageRoute(builder: (BuildContext context) {return const NewsPage(arguments: {"title": "基本路由新闻页面传值","aid": 88888888,},);},),);},child: const Text('基本路由跳转新闻页面(传值)'),),

2.命名路由跳转：此时文件在main.dart文件引入

        ElevatedButton(onPressed: () {Navigator.pushNamed(context, '/news', arguments: {"title": "命名路由新闻页面传值","aid": 999999999,});},child: const Text('命名路由跳转新闻页面(传值)'),),

此时需要在main.dart页面配置相关属性

import 'package:flutter/material.dart';
import "./pages/namedRoutes/tabs.dart";
import "./pages/namedRoutes/news.dart";
import "./pages/namedRoutes/form.dart";void main() {runApp(MyApp());
}class MyApp extends StatelessWidget {// 1.配置路由表final Map routes = {"/": (context) => const Tabs(),"/form": (context) => const FormPage(),"/news": (context, {arguments}) => NewsPage(arguments: arguments),};MyApp({super.key});@overrideWidget build(BuildContext context) {return MaterialApp(title: "Flutter Demo",debugShowCheckedModeBanner: false, // 去除debug标签theme: ThemeData(primarySwatch: Colors.blue,primaryColor: Colors.red,),// home: const Tabs(),//2、调用onGenerateRoute处理onGenerateRoute: (RouteSettings settings) {// 统一处理final String? name = settings.name;final Function? pageContentBuilder = routes[name];if (pageContentBuilder != null) {if (settings.arguments != null) {final Route route = MaterialPageRoute(builder: (context) =>pageContentBuilder(context, arguments: settings.arguments));return route;} else {final Route route = MaterialPageRoute(builder: (context) => pageContentBuilder(context));return route;}}return null;},);}
}