world_countries 4.2.0

Sealed world data in form of Flutter widgets (country, phone, currency pickers, etc.).

example/lib/main.dart

// ignore_for_file: avoid-late-keyword, avoid-disposing-late-fields

import "package:flutter/material.dart";
import "package:flutter_localizations/flutter_localizations.dart";
import "package:world_countries/world_countries.dart";

import "app_navigator.dart";
import "model/world_data.dart";
import "routing/delegate.dart";
import "routing/parser.dart";
import "routing/route_state.dart";
import "theme/flag_theme_controller.dart";
import "theme/flag_theme_scope.dart";
import "theme/theme_manager.dart";
import "theme/theme_provider.dart";

void main() => runApp(const ThemeManager(child: Main()));

class Main extends StatefulWidget {
  const Main({super.key});

  @override
  State<Main> createState() => _MainState();
}

class _MainState extends State<Main> {
  /// Also [CurrencyTileThemeData], [LanguageTileThemeData],
  /// [CountryTileThemeData], [FlagThemeData], etc.
  final _pickersExtensions = <ThemeExtension>[
    const PickersThemeData(primary: true),
    CurrencyTileThemeData(
      itemBuilder: (currency, currencyTile) => currencyTile.copyWith(
        leading: CurrencyFlag.fromFlagMap(
          currency.item, // Dual flags for currencies with multiple countries.
          alternativeMap: currency.context.maybeLocale?.maps.currencyFlags,
        ),
      ),
    ),
    LanguageTileThemeData(
      itemBuilder: (language, languageTile) => languageTile.copyWith(
        leading: LanguageFlag.fromFlagMap(language.item), // E.g. US/GB for ENG.
      ),
    ),
  ];

  final _flagThemeController = FlagThemeController();
  final _navigatorKey = GlobalKey<NavigatorState>();
  final _routeParser = TemplateRouteParser(allowedPaths: WorldData.paths);

  late final _routeState = RouteState(_routeParser);
  late final _routerDelegate = SimpleRouterDelegate(
    routeState: _routeState,
    builder: (_) => AppNavigator(_navigatorKey),
    navigatorKey: _navigatorKey,
  );

  @override
  void dispose() {
    _flagThemeController.dispose();
    _routerDelegate.dispose();
    _routeState.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) => RouteStateScope(
    notifier: _routeState,
    child: FlagThemeScope(
      _flagThemeController,
      child: ListenableBuilder(
        listenable: _flagThemeController,
        builder: (bc, _) => MaterialApp.router(
          routerDelegate: _routerDelegate,
          routeInformationParser: _routeParser,
          theme: ThemeProvider.maybeOf(bc)?.theme.copyWith(
            extensions: [..._pickersExtensions, _flagThemeController.theme],
          ),
          localizationsDelegates: const [
            ...GlobalMaterialLocalizations.delegates,
            TypedLocaleDelegate(), // ! Add for pickers L10N & improved search.
          ],
          supportedLocales: [
            ...const [
              Locale("de", "DE"),
              Locale("de", "AT"),
              Locale.fromSubtags(languageCode: "bs", scriptCode: "Cyrl"),
              Locale.fromSubtags(languageCode: "bs", scriptCode: "Latn"),
              TypedLocale(LangPor(), country: CountryBra()), // Typed one.
            ],
            for (final locale in kMaterialSupportedLanguages) Locale(locale),
          ],
        ),
      ),
    ),
  );
}