Dialog-manager - A Flutter package that allows for neater declaration, abstraction and use of customisable dialogs

import 'package:flutter_dialog_manager/flutter_dialog_manager.dart';

@override
  Widget build(BuildContext context) {
    return DialogManager(
      navigatorKey: _navigatorKey,
      child: MaterialApp(
        title: 'Flutter Demo',
        theme: ThemeData(
          primarySwatch: Colors.blue,
        ),
        navigatorKey: _navigatorKey,
        home: const MyHomePage(title: 'Flutter Demo Home Page'),
      ),
    )

  onGenerateDialogs: (settings) {
        switch (settings.name) {
          case "/counter":
            if (settings.arguments != null) {
              return CounterDialog(
                counter: settings.arguments as int,
              );
            }
            break;
      }}

 dialogRoutes: {
        "/": (context) => DefaultDialog(),
        "/home": (context) => HomeDialog(),
      }

 DialogManager.of(context).showDialog(
      routeName: "/counter",
      arguments: _counter,
    );