Test flutter routing

flutter doctor

flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel master, v1.15.3-pre.37, on Microsoft Windows [Version 10.0.18362.592], locale en-AU)
[!] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
    X Android license status unknown.
      Try re-installing or updating your Android SDK Manager.
      See https://developer.android.com/studio/#downloads or visit https://flutter.dev/setup/#android-setup for detailed instructions.
[√] Chrome - develop for the web
[√] Android Studio (version 3.5)
[!] IntelliJ IDEA Community Edition (version 2019.3)
    X Flutter plugin not installed; this adds Flutter specific functionality.
    X Dart plugin not installed; this adds Dart specific functionality.
[!] VS Code (version 1.42.0)
    X Flutter extension not installed; install from
      https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter
[√] Connected device (2 available)

! Doctor found issues in 3 categories.

main.dart

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Route Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      routes: {
        "/": (_) => Home()
      },
      onGenerateRoute: (RouteSettings settings) {
        return MaterialPageRoute(builder: (_) => Detail(), settings: settings);
      },
    );
  }
}

class Home extends StatelessWidget {
  @override
  Widget build(BuildContext context) => Scaffold(
    appBar: AppBar(title: Text("Home")),
    body: Center(child: RaisedButton(
      child: Text('Go Detail'),
      onPressed: () => Navigator.pushNamed(context, "Detail")
    ))
  );
}

class Detail extends StatelessWidget {
  @override
  Widget build(BuildContext context) => Scaffold(
    appBar: AppBar(title: Text("Detail")),
    body: Center(child: RaisedButton(
      child: Text('Go Home'),
      onPressed: () => Navigator.pop(context)
    ))
  );
}

pubspec.yml

name: route_test
description: Test named routes
version: 1.0.0+1
environment:
  sdk: ">=2.1.0 <3.0.0"
dependencies:
  flutter:
    sdk: flutter
dev_dependencies:
  flutter_test:
    sdk: flutter
flutter:
  uses-material-design: true