Flutter：在_WidgetsAppState中找不到路由RouteSettings的生成器（“ / HomePage”，null） [英] Flutter : Could not find a generator for route RouteSettings("/HomePage", null) in the _WidgetsAppState

问题描述

我在演示项目中使用以下路线

I'm using below in my demo project for routes

 routes: <String, WidgetBuilder>{
    '/HomePage': (BuildContext context) => HomePage()
  },

并尝试使用以下代码导航主屏幕

And trying to navigate home screen using below code

onPressed: () {
    debugPrint("Hello button is clicked");

     Navigator.of(context)
               .pushReplacementNamed('/HomePage');
 },

但是当我单击按钮时，我得到了Exception

But When my button clicked I'm getting below Exception

════════ Exception caught by gesture ═══════════════════════════════════════════════════════════════
The following assertion was thrown while handling a gesture:
Could not find a generator for route RouteSettings("/HomePage", null) in the _WidgetsAppState.

Generators for routes are searched for in the following order:
 1. For the "/" route, the "home" property, if non-null, is used.
 2. Otherwise, the "routes" table is used, if it has an entry for the route.
 3. Otherwise, onGenerateRoute is called. It should return a non-null value for any valid route not handled by "home" and "routes".
 4. Finally if all else fails onUnknownRoute is called.
Unfortunately, onUnknownRoute was not set.
When the exception was thrown, this was the stack: 
#0      _WidgetsAppState._onUnknownRoute.<anonymous closure> (package:flutter/src/widgets/app.dart:772:9)
#1      _WidgetsAppState._onUnknownRoute (package:flutter/src/widgets/app.dart:785:6)
#2      NavigatorState._routeNamed (package:flutter/src/widgets/navigator.dart:1625:22)
#3      NavigatorState.pushReplacementNamed (package:flutter/src/widgets/navigator.dart:1690:35)
#4      _RegisterPage.build.<anonymous closure> (package:oricon/register.dart:231:42)

I已经在下面检查了堆栈溢出链接

I have already checked below Stack-overflow links

• 在_WidgetsAppState


中找不到路由RouteSettings（ /，空）的生成器： //stackoverflow.com/q/56233077/8112541>如何在flutter中使用路线导航到主页面以外的页面？

• 找不到路由 home-page的生成器_MaterialAppState
中的

• 为什么在我使用pushNamedReplacement而不是pushReplacement时它不​​起作用？


• Could not find a generator for route RouteSettings("/", null) in the _WidgetsAppState
• How to use routes in flutter to navigate to page other than from main?
• Could not find a generator for route "home-page" in the _MaterialAppState
• Why does it not work when I use pushNamedReplacement instead of pushReplacement?

如果需要更多信息，请告诉我。提前致谢。

If need more information please do let me know. Thanks in advance. Your efforts will be appreciated.

推荐答案

您可以使用：

Navigator.of(context)
           .pushReplacementNamed('/HomePage');

使用此：

 Navigator.push(context, new MaterialPageRoute(
   builder: (context) => new MyHomePage())
 );

您可以在答案，这对我有用

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