flutter路由的几种用法小结-kb88凯时官网登录

flutter路由跳转

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,
  });
  @override
  state createstate() => _searchpagestatestate();
}
class _searchpagestatestate extends state {
  @override
  void initstate() {
    super.initstate();
  }
  @override
  widget 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: "kb88凯时d88尊龙官网手机app官网登录首页传过来的参数", 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kb88凯时d88尊龙官网手机app官网登录首页添加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});
  @override
  widget 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,
  });
  @override
  state createstate() => _formpagestatestate();
}
class _formpagestatestate extends state {
  @override
  void initstate() {
    super.initstate();
  }
  @override
  widget 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。