workouttest_app/lib/main.dart

import 'package:aitrainer_app/view/customer_modify_page.dart';
import 'package:aitrainer_app/view/customer_new_page.dart';
import 'package:aitrainer_app/view/exercise_new_page.dart';
import 'package:aitrainer_app/view/exercise_type_modify_page.dart';
import 'package:aitrainer_app/view/exercise_type_new_page.dart';
import 'package:aitrainer_app/viewmodel/exercise_changing_view_model.dart';
import 'package:flutter/material.dart';
import 'package:aitrainer_app/view/customer_list_page.dart';
import 'package:aitrainer_app/view/exercise_type_list_page.dart';
import 'package:aitrainer_app/widgets/nav_drawer.dart';
import 'package:provider/provider.dart';
import 'package:flutter_localizations/flutter_localizations.dart';

void main() {
  runApp(
      ChangeNotifierProvider(
        // Initialize the model in the builder. That way, Provider
        // can own Models's lifecycle, making sure to call `dispose`
        // when not needed anymore.
        create: (context) => ExerciseChangingViewModel(null),
        child: AitrainerApp(),
      ),
  );
}

class AitrainerApp extends StatelessWidget {

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      localizationsDelegates: [
        // ... app-specific localization delegate[s] here
        GlobalMaterialLocalizations.delegate,
        GlobalWidgetsLocalizations.delegate,
        GlobalCupertinoLocalizations.delegate,
      ],
      supportedLocales: [
        const Locale('en'), // English
        const Locale('hu'), // Hungarian
        // ... other locales the app supports
      ],
      routes: {
        'home': (context) => AitrainerHome(),
        'customersPage': (context) => CustomerListPage(),
        'customerNewPage': (context) => CustomerNewPage(),
        'customerModifyPage': (context) => CustomerModifyPage(),
        'exerciseTypeListPage': (context) => ExerciseTypeListPage(),
        'exerciseTypeNewPage': (context) => ExerciseTypeNewPage(),
        'exerciseTypeModifyPage': (context) => ExerciseTypeModifyPage(),
        'exerciseNewPage': (context) => ExerciseNewPage(),
      },
      initialRoute: 'home',
      title: 'Aitrainer Demo',
      theme: ThemeData(
        primarySwatch: Colors.green,
      ),
      home: AitrainerHome(),
    );
  }
}

class AitrainerHome extends StatelessWidget {
  final _biggerFont = const TextStyle(fontSize: 24.0, color: Color.fromRGBO(94, 123, 122, 0.9));
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      drawer: NavDrawer(),
      appBar: AppBar(
        title: Text('Menu'),
      ),
      body: Center(
        child: Text(
          'Welcome to the AITRAINER',
          style: _biggerFont),
      ),
    );
  }
}

/*
class CustomerScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      drawer: NavDrawer(),
      appBar: AppBar(
        title: Text('Customers'),
      ),
      body: Center(
        child: CustomerListPage(),
      ),
    );
  }
}
*/

/* class AitrainerApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
        title: "AITRAINER customers",
        home:
        ChangeNotifierProvider(
          create: (context) => CustomerListViewModel(),
          child: CustomerListPage(),
        )
    );
  }
}

*/

/*
// #docregion MyApp
class MyApp extends StatelessWidget {
  // #docregion build
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Startup Name Generator',
      theme: ThemeData(          // Add the 3 lines from here...
        primaryColor: Colors.white,
      ),
      home: RandomWords(),
    );
  }
// #enddocregion build
}
// #enddocregion MyApp

// #docregion RWS-var
class RandomWordsState extends State<RandomWords> {
  final _suggestions = <WordPair>[];
  final _biggerFont = const TextStyle(fontSize: 18.0);
  final Set<WordPair> _saved = Set<WordPair>();

  // #enddocregion RWS-var

  // #docregion _buildSuggestions
  Widget _buildSuggestions() {
    return ListView.builder(
        padding: const EdgeInsets.all(16.0),
        itemBuilder: /*1*/ (context, i) {
          if (i.isOdd) return Divider(); /*2*/

          final index = i ~/ 2; /*3*/
          if (index >= _suggestions.length) {
            _suggestions.addAll(generateWordPairs().take(10)); /*4*/
          }
          return _buildRow(_suggestions[index]);
        });
  }
  // #enddocregion _buildSuggestions

  // #docregion _buildRow
  Widget _buildRow(WordPair pair) {
    final bool alreadySaved = _saved.contains(pair);
    return ListTile(
      title: Text(
        pair.asPascalCase,
        style: _biggerFont,
      ),
      trailing: Icon(   // Add the lines from here...
        alreadySaved ? Icons.favorite : Icons.favorite_border,
        color: alreadySaved ? Colors.red : null,
      ),
      onTap: () {      // Add 9 lines from here...
        setState(() {
          if (alreadySaved) {
            _saved.remove(pair);
          } else {
            _saved.add(pair);
          }
        });
      },
    );
  }
  // #enddocregion _buildRow

  // #docregion RWS-build
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Startup Name Generator'),
        actions: <Widget>[      // Add 3 lines from here...
          IconButton(icon: Icon(Icons.list), onPressed: _pushSaved),
        ],
      ),
      body: _buildSuggestions(),
    );
  }

  void _pushSaved() {
    Navigator.of(context).push(
      MaterialPageRoute<void>(   // Add 20 lines from here...
        builder: (BuildContext context) {
          final Iterable<ListTile> tiles = _saved.map(
                (WordPair pair) {
              return ListTile(
                title: Text(
                  pair.asPascalCase,
                  style: _biggerFont,
                ),
              );
            },
          );
          final List<Widget> divided = ListTile
              .divideTiles(
            context: context,
            tiles: tiles,
          ).toList();
          return Scaffold(         // Add 6 lines from here...
            appBar: AppBar(
              title: Text('Saved Suggestions'),
            ),
            body: ListView(children: divided),
          );
        },

      ),

    );
  }
// #enddocregion RWS-build
// #docregion RWS-var
}
// #enddocregion RWS-var

class RandomWords extends StatefulWidget {
  @override
  RandomWordsState createState() => new RandomWordsState();
}

*/