// locale 'en_US'
1234.5.toCurrency(code: 'EUR') // 1 234,50 €
1234.5.toCurrency(code: 'EUR', withPattern: false) // €1,234.50

// Init from context
CurrencyProvider.initFromContext(context);

// [OR] Inject your own
import 'package:flutter_gen/gen_l10n/app_localization_de.dart';
CurrencyDefaults.labels = AppLocalizationsDe();

Currency? currency;

@override
Widget build(BuildContext context) {
  return CurrencySelector(
    value: currency?.code,
    hintText: 'Currency Type (Code)',
    hintStyle: Theme.of(context).textTheme.copyWith(
      color: textTheme.headlineSmall?.color!.withOpacity(0.4),
      overflow: TextOverflow.ellipsis,
    ),
    fieldBackground: Theme.of(context).colorScheme.onSurface.withOpacity(0.1),
    update: (value) => setState(() => currency = value),
  );
}