buildChild method

@override Widget buildChild(BuildContext context)

Override to impose your own WidgetsApp (like CupertinoApp or MaterialApp)

Implementation

@override
Widget buildChild(BuildContext context) {
  //
  Widget app;

  assert(() {
    /// Highlights UI while debugging.
    debug.debugPaintSizeEnabled = debugPaintSizeEnabled ?? false;
    debug.debugPaintBaselinesEnabled = debugPaintBaselinesEnabled ?? false;
    debug.debugPaintPointersEnabled = debugPaintPointersEnabled ?? false;
    debug.debugPaintLayerBordersEnabled =
        debugPaintLayerBordersEnabled ?? false;
    debug.debugRepaintRainbowEnabled = debugRepaintRainbowEnabled ?? false;
    debug.debugRepaintTextRainbowEnabled =
        debugRepaintTextRainbowEnabled ?? false;
    return true;
  }());

  final _routerDelegate = routerDelegate ?? onRouterDelegate();
  final _routerConfig = routerConfig ?? onRouterConfig();
  var _routeInformationParser =
      routeInformationParser ?? onRouteInformationParser();
  // Supply the appropriate parser for the developer.
  if (_routerDelegate is v.AppRouterDelegate &&
      _routeInformationParser == null) {
    _routeInformationParser = v.AppRouteInformationParser();
  }

  if (useCupertino!) {
    // A CupertinoApp object has been supplied.
    if (cupertinoApp != null) {
      app = cupertinoApp!;
      //
    } else if (_routerDelegate == null) {
      //
      app = CupertinoApp(
        key: key ?? cupertinoKey,
        navigatorKey: navigatorKey ?? onNavigatorKey(),
        routes: routes ?? onRoutes() ?? const <String, WidgetBuilder>{},
        initialRoute: initialRoute ?? onInitialRoute(),
        onGenerateRoute: onGenerateRoute ?? onOnGenerateRoute(),
        onUnknownRoute: onUnknownRoute ?? onOnUnknownRoute(),
        navigatorObservers: navigatorObservers ??
            onNavigatorObservers() ??
            const <NavigatorObserver>[],
        builder: builder ?? onBuilder(),
        title: title = onTitle(),
        onGenerateTitle: onGenerateTitle ?? onOnGenerateTitle(context),
        color: color ?? onColor() ?? Colors.blue,
        theme: _iosThemeData(),
        locale:
            onLocale() ?? locale, // locale gets assigned elsewhere so switch
        localizationsDelegates:
            localizationsDelegates ?? onLocalizationsDelegates(),
        localeListResolutionCallback:
            localeListResolutionCallback ?? onLocaleListResolutionCallback,
        localeResolutionCallback:
            localeResolutionCallback ?? onLocaleResolutionCallback,
        supportedLocales: v.App.supportedLocales = supportedLocales ??
            onSupportedLocales() ??
            const <Locale>[Locale('en', 'US')],
        showPerformanceOverlay:
            showPerformanceOverlay ?? onShowPerformanceOverlay() ?? false,
        checkerboardRasterCacheImages: checkerboardRasterCacheImages ??
            onCheckerboardRasterCacheImages() ??
            false,
        checkerboardOffscreenLayers: checkerboardOffscreenLayers ??
            onCheckerboardOffscreenLayers() ??
            false,
        showSemanticsDebugger:
            showSemanticsDebugger ?? onShowSemanticsDebugger() ?? false,
        debugShowCheckedModeBanner: debugShowCheckedModeBanner ??
            onDebugShowCheckedModeBanner() ??
            false,
        shortcuts: shortcuts ?? onShortcuts(),
        actions: actions ?? onActions(),
        restorationScopeId: restorationScopeId ?? onRestorationScopeId(),
        scrollBehavior: scrollBehavior ?? onScrollBehavior(),
        useInheritedMediaQuery:
            useInheritedMediaQuery ?? onInheritedMediaQuery() ?? false,
        // Let the parameters run before the home parameter.
        home: home ?? onHome(),
      );
    } else {
      //
      app = CupertinoApp.router(
        key: key ?? cupertinoKey,
        routeInformationProvider:
            routeInformationProvider ?? onRouteInformationProvider(),
        routeInformationParser: _routeInformationParser,
        routerDelegate: _routerDelegate,
        routerConfig: _routerConfig,
        theme: _iosThemeData(),
        builder: builder ?? onBuilder(),
        title: title = onTitle(),
        onGenerateTitle: onGenerateTitle ?? onOnGenerateTitle(context),
        color: color ?? onColor() ?? Colors.blue,
        locale:
            onLocale() ?? locale, // locale gets assigned elsewhere so switch
        localizationsDelegates:
            localizationsDelegates ?? onLocalizationsDelegates(),
        localeListResolutionCallback:
            localeListResolutionCallback ?? onLocaleListResolutionCallback,
        localeResolutionCallback:
            localeResolutionCallback ?? onLocaleResolutionCallback,
        supportedLocales: v.App.supportedLocales = supportedLocales ??
            onSupportedLocales() ??
            const <Locale>[Locale('en', 'US')],
        showPerformanceOverlay:
            showPerformanceOverlay ?? onShowPerformanceOverlay() ?? false,
        checkerboardRasterCacheImages: checkerboardRasterCacheImages ??
            onCheckerboardRasterCacheImages() ??
            false,
        checkerboardOffscreenLayers: checkerboardOffscreenLayers ??
            onCheckerboardOffscreenLayers() ??
            false,
        showSemanticsDebugger:
            showSemanticsDebugger ?? onShowSemanticsDebugger() ?? false,
        debugShowCheckedModeBanner: debugShowCheckedModeBanner ??
            onDebugShowCheckedModeBanner() ??
            false,
        shortcuts: shortcuts ?? onShortcuts(),
        actions: actions ?? onActions(),
        restorationScopeId: restorationScopeId ?? onRestorationScopeId(),
        scrollBehavior: scrollBehavior ?? onScrollBehavior(),
        useInheritedMediaQuery:
            useInheritedMediaQuery ?? onInheritedMediaQuery() ?? false,
      );
    }
  } else {
    // A MaterialApp object has been supplied.
    if (materialApp != null) {
      app = materialApp!;
      //
    } else if (_routerDelegate == null) {
      app = MaterialApp(
        key: key ?? materialKey,
        navigatorKey: navigatorKey ?? onNavigatorKey(),
        scaffoldMessengerKey:
            scaffoldMessengerKey ?? onScaffoldMessengerKey(),
        routes: routes ?? onRoutes() ?? const <String, WidgetBuilder>{},
        initialRoute: initialRoute ?? onInitialRoute(),
        onGenerateRoute: onGenerateRoute ?? onOnGenerateRoute(),
        onUnknownRoute: onUnknownRoute ?? onOnUnknownRoute(),
        navigatorObservers: navigatorObservers ??
            onNavigatorObservers() ??
            const <NavigatorObserver>[],
        builder: builder ?? onBuilder(),
        title: title = onTitle(),
        onGenerateTitle: onGenerateTitle ?? onOnGenerateTitle(context),
        color: color ?? onColor() ?? Colors.white,
        theme: _themeData(),
        darkTheme: darkTheme ?? onDarkTheme(),
        themeMode: themeMode ?? onThemeMode() ?? ThemeMode.system,
        locale:
            onLocale() ?? locale, // locale gets assigned elsewhere so switch
        localizationsDelegates: onLocalizationsDelegates(),
        localeListResolutionCallback:
            localeListResolutionCallback ?? onLocaleListResolutionCallback,
        localeResolutionCallback:
            localeResolutionCallback ?? onLocaleResolutionCallback,
        supportedLocales: v.App.supportedLocales = supportedLocales ??
            onSupportedLocales() ??
            const <Locale>[Locale('en', 'US')],
        debugShowMaterialGrid:
            debugShowMaterialGrid ?? onDebugShowMaterialGrid() ?? false,
        showPerformanceOverlay:
            showPerformanceOverlay ?? onShowPerformanceOverlay() ?? false,
        checkerboardRasterCacheImages: checkerboardRasterCacheImages ??
            onCheckerboardRasterCacheImages() ??
            false,
        checkerboardOffscreenLayers: checkerboardOffscreenLayers ??
            onCheckerboardOffscreenLayers() ??
            false,
        showSemanticsDebugger:
            showSemanticsDebugger ?? onShowSemanticsDebugger() ?? false,
        debugShowCheckedModeBanner: debugShowCheckedModeBanner ??
            onDebugShowCheckedModeBanner() ??
            false,
        shortcuts: shortcuts ?? onShortcuts(),
        actions: actions ?? onActions(),
        restorationScopeId: restorationScopeId ?? onRestorationScopeId(),
        scrollBehavior: scrollBehavior ?? onScrollBehavior(),
        useInheritedMediaQuery:
            useInheritedMediaQuery ?? onInheritedMediaQuery() ?? false,
        // Let the parameters run before the home parameter.
        home: home ?? onHome(),
      );
    } else {
      app = MaterialApp.router(
        key: key ?? materialKey,
        scaffoldMessengerKey:
            scaffoldMessengerKey ?? onScaffoldMessengerKey(),
        routeInformationProvider:
            routeInformationProvider ?? onRouteInformationProvider(),
        routeInformationParser: _routeInformationParser,
        routerDelegate: _routerDelegate,
        routerConfig: _routerConfig,
        backButtonDispatcher:
            backButtonDispatcher ?? onBackButtonDispatcher(),
        builder: builder ?? onBuilder(),
        title: title = onTitle(),
        onGenerateTitle: onGenerateTitle ?? onOnGenerateTitle(context),
        color: color ?? onColor() ?? Colors.white,
        theme: _themeData(),
        darkTheme: darkTheme ?? onDarkTheme(),
        themeMode: themeMode ?? onThemeMode() ?? ThemeMode.system,
        locale:
            onLocale() ?? locale, // locale gets assigned elsewhere so switch
        localizationsDelegates: onLocalizationsDelegates(),
        localeListResolutionCallback:
            localeListResolutionCallback ?? onLocaleListResolutionCallback,
        localeResolutionCallback:
            localeResolutionCallback ?? onLocaleResolutionCallback,
        supportedLocales: v.App.supportedLocales = supportedLocales ??
            onSupportedLocales() ??
            const <Locale>[Locale('en', 'US')],
        debugShowMaterialGrid:
            debugShowMaterialGrid ?? onDebugShowMaterialGrid() ?? false,
        showPerformanceOverlay:
            showPerformanceOverlay ?? onShowPerformanceOverlay() ?? false,
        checkerboardRasterCacheImages: checkerboardRasterCacheImages ??
            onCheckerboardRasterCacheImages() ??
            false,
        checkerboardOffscreenLayers: checkerboardOffscreenLayers ??
            onCheckerboardOffscreenLayers() ??
            false,
        showSemanticsDebugger:
            showSemanticsDebugger ?? onShowSemanticsDebugger() ?? false,
        debugShowCheckedModeBanner: debugShowCheckedModeBanner ??
            onDebugShowCheckedModeBanner() ??
            false,
        shortcuts: shortcuts ?? onShortcuts(),
        actions: actions ?? onActions(),
        restorationScopeId: restorationScopeId ?? onRestorationScopeId(),
        scrollBehavior: scrollBehavior ?? onScrollBehavior(),
        useInheritedMediaQuery:
            useInheritedMediaQuery ?? onInheritedMediaQuery() ?? false,
      );
    }
  }

//     // The theme may not have been set. This property must have a value.
//     // Assign Flutter's current theme default
// //    v.App.themeData ??= ThemeData.light();
//     if (v.App.themeData == null) {
//       v.App.themeData = ThemeData.light();
//       // If a color is already stored in preferences, don't overwrite.
//       v.App.preferredTheme(
//           color: v.App.themeData!.primaryColor, overWrite: false);
//     }
//
//     // Supply the iOS theme if necessary.
//     v.App.iOSTheme ??=
//         MaterialBasedCupertinoThemeData(materialTheme: v.App.themeData!);

  return app;
}