Flutter路由的几种用法

基本路由跳转 

ElevatedButton(onPressed: () {//基本路由跳转Navigator.of(context).push(MaterialPageRoute(builder: (BuildContext context) {return const SearchPage();}),);},child: const Text("基本路由跳转"),
),

search.dart页面

import 'package:flutter/material.dart';class SearchPage extends StatefulWidget {final String context;final int aid;const SearchPage({super.key,this.context = "",this.aid = 0,});@overrideState<SearchPage> createState() => _SearchPageStateState();
}class _SearchPageStateState extends State<SearchPage> {@overridevoid initState() {super.initState();}@overrideWidget build(BuildContext context) {return Scaffold(floatingActionButton: FloatingActionButton(onPressed: () {//返回到上一页路由Navigator.pop(context);},child: const Icon(Icons.close),),appBar: AppBar(title: const Text("搜索页面"),),body: Center(child: Text("${widget.context} ""${widget.aid == 0 ? "" : ",代号：${widget.aid}"}"),),);}
}

返回上一页路由

Navigator.pop(context);

基本路由跳转传参

ElevatedButton(onPressed: () {//基本路由跳转传参Navigator.of(context).push(MaterialPageRoute(builder: (BuildContext context) {return const SearchPage(context: "首页传过来的参数", aid: 123456);}),);},child: const Text("基本路由跳转传参"),
),

命名路由跳转

ElevatedButton(onPressed: () {//命名路由跳转Navigator.pushNamed(context, "/search");},child: const Text("命名路由跳转"),
),

命名路由跳转需要先配置路由

routers.dart配置文件

import 'package:flutter/material.dart';
import 'package:flutter_demo/form.dart';
import 'package:flutter_demo/register2.dart';
import 'package:flutter_demo/search.dart';//配置路由
Map routes = {"/search": (context) => const SearchPage(),"/register2": (context) => const Register2(),"/form": (context, {arguments}) => FormPage(arguments: arguments),
};//配置onGenerateRoute固定写法,这个方法相当于一个中间件，可以做权限判断
var onGenerateRoute = (RouteSettings settings) {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;
};

然后需要在首页添加initialRoute和onGenerateRoute配置

import 'package:flutter_demo/routers/routers.dart';void main() {runApp(const MyApp());
}class MyApp extends StatelessWidget {const MyApp({super.key});@overrideWidget build(BuildContext context) {return MaterialApp(//隐藏DEBUG图标debugShowCheckedModeBanner: false,theme: ThemeData(primarySwatch: Colors.blue),home: const Scaffold(body: MyHomePage(),),initialRoute: "/",onGenerateRoute: onGenerateRoute,);}
}

命名路由跳转传参

ElevatedButton(onPressed: () {//命名路由传参Navigator.pushNamed(context,"/form",arguments: {"aid": 123456,"name": "张三","age": "18",},);},child: const Text("命名路由传参"),
),

context属性中写配置中的路径，arguments属性中是跳转需要带的参数，跳转到form.dart页面并接收参数。

import 'package:flutter/material.dart';class FormPage extends StatefulWidget {final Map arguments;const FormPage({super.key,required this.arguments,});@overrideState<FormPage> createState() => _FormPageStateState();
}class _FormPageStateState extends State<FormPage> {@overridevoid initState() {super.initState();}@overrideWidget build(BuildContext context) {return Scaffold(appBar: AppBar(title: const Text("表单页面"),),body: Center(child: Text(widget.arguments.isEmpty? "": "我是${widget.arguments["name"]},我${widget.arguments["age"]}了，""代号：${widget.arguments["aid"]}",),),);}
}

命名路由替换跳转

Navigator.of(context).pushReplacementNamed("/register2");

命名路由替换跳转用pushReplacementNamed，跳转新页面后本页面被替换掉。

移除所有页面返回到根页面

Navigator.of(context).pushAndRemoveUntil(MaterialPageRoute(builder: (BuildContext context) {return const MyApp();
}), (route) => false);

移除所有页面并返回到指定页面用pushAndRemoveUntil。