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router.dart
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router.dart
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import 'package:flutter/material.dart';
import './routers.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: "老菜鸟",
initialRoute: "/",
onGenerateRoute: (settings){
final String routersname = settings.name;
final Function controllerFn = routers[routersname];
//判断是否访问不存在的路由地址
if(controllerFn == null){
return MaterialPageRoute(
builder: (context)=> routers['/Lcn404']()
);
}
//判断是否传参
if(settings.arguments == null){
return MaterialPageRoute(
builder: (context)=> controllerFn()
);
}else{
return MaterialPageRoute(
builder: (context)=> controllerFn(settings.arguments)
);
}
},
onUnknownRoute: (settings){
return MaterialPageRoute(
builder: (context)=> routers['/error']()
);
},
);
}
}
//routers里面的代码
import './page/about.dart';
import './page/home.dart';
import './page/error.dart';
import './page/Lcn404.dart';
final routers = {
"/" : () => Home(),
"/about" : (args)=> About(args),
"/error": () => Error(),
"/Lcn404": () => Lcn404()
};