main.dart

import 'dart:developer';

import 'package:flutter/material.dart';
import 'package:medium_story_app/config.dart';

void main() {
  // Init the default timezone
  Config.instance.set('timezone', 'Europe/London');
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  void _changeTimezone() {
    Config.instance.set('timezone', 'Europe/Istanbul');
    log('Timezone is updated.');
  }

  void _logTimezone() {
    log('Current timezone is ' + Config.instance.get('timezone'));
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Singleton Demo',
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Change Timezone'),
        ),
        body: Center(
          child: IconButton(
            icon: const Icon(Icons.print),
            onPressed: _logTimezone,
          )
        ),
        floatingActionButton: FloatingActionButton(
          onPressed: _changeTimezone,
          child: const Icon(Icons.update),
        ),
      ),
    );
  }
}