小编Bla*_*ova的帖子

当我在 flutter 应用程序中使用嵌套的 Navigators 时，我正在尝试更新 Web URL。

/具有一个导航到该/sub路线的FlatButton的默认路线。然后在_generateSubRoute->/second

这是我的例子：

import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      routes: {
    // When navigating to the "/" route, build the FirstScreen widget
        '/': (context) => Scaffold(
              body: FlatButton(
                onPressed: () {
                  Navigator.of(context).pushNamed('/sub');
                },
                child: Text(
                  "Go to sub",
                ),
              ),
            ),
// When navigating to the "/second" route, build the  SecondScreen widget. …