BotZ_app/lib/main.dart

import 'package:flutter/material.dart';
import 'ui/main_page.dart';
import 'ui/welcome_page.dart';
import 'ui/credentials_form.dart';
import 'ui/server_form.dart';
import 'ui/dialog.dart';
import 'ui/settings_page.dart';
import 'ui/operations_page.dart';

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

class MyApp extends StatelessWidget {
  final title = 'BotZ';

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
        title: title,
        theme: ThemeData(
          primarySwatch: Colors.green,
          dialogTheme: baseDialogTheme,
        ),
        initialRoute: "/",
        routes: {
            "/": (context) => HomePage(nextRoute: "/welcome"),
            "/welcome": (context) => WelcomePage(nextRoute: "/settings/server"),
            "/settings": (context) => SettingsPage(),
            "/settings/server": (context) => ServerForm(defaultNextRoute: "/settings/credentials"),
            "/settings/credentials": (context) => CredentialsForm(defaultNextRoute: "/"),
            "/operations": (context) => OperationsPage(),
        });
  }
}



class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;

  void _incrementCounter() {
    setState(() {
      _counter++;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Text(
              'You have pushed the button this many times:',
            ),
            Text(
              '$_counter',
              style: Theme.of(context).textTheme.display1,
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: Icon(Icons.add),
      ),
    );
  }
}