init library

Classes

U: App-wide settings and data: base URL, localized strings (U.s), user, app settings, dynamic tabs. U.s.save, U.baseUrl
UMaterialApp: MaterialApp wired for u: navigatorKey, fa/en localizations, saved theme and language that switch live. UMaterialApp(locale: const Locale("fa"), home: const HomePage(), lightThemeData: light, darkThemeData: dark)
UTabData: One tab of U.tabs: a title and its page.

navigatorKey ↔ GlobalKey<NavigatorState>: The app's navigator key; UMaterialApp uses it so UNavigator/UToast/ULoading work without a context.
getter/setter pair

initU({String? baseUrl, String? apiKey, String defaultPhoneCountryCode = "IR", int snackBarDuration = 4, ULoadingSettings loadingSettings = const ULoadingSettings(blurAmount: 1, overlayColor: Colors.black12), List<DeviceOrientation> deviceOrientations = const <DeviceOrientation>[DeviceOrientation.portraitUp, DeviceOrientation.portraitDown]}) → Future<void>: Starts u (storage, device/app/network info, notifications, loading overlay, web updates); locks portrait unless you pass deviceOrientations. Call once before runApp. await initU(baseUrl: "https://api.x.com");