Toglefritz

 @override
Widget build(BuildContext context) {
  return MaterialApp(
    title: 'Partly Windy',
    theme: buildLightTheme(),
    darkTheme: buildDarkTheme(),
    themeMode: ThemeMode.system,
    debugShowCheckedModeBanner: false,
    home: const DailyForecastRoute(),
  );

Toglefritz

// Return the view appropriate for the device screen size
return LayoutBuilder(
  builder: (BuildContext context, BoxConstraints constraints) {
    debugPrint('Host device screen width: ${constraints.maxWidth}');

    // Watch-sized device
    if (constraints.maxWidth < 300) {
      return DailyForecastViewWatch(this);
    }
    // Phone-sized device

Toglefritz

/// The Model Widget defines external parameters.
class Page extends StatefulWidget {
  const Page({Key? key}) : super(key: key);

  @override
  PageController createState() => PageController();
}

/// The Controller handles the state and business logic.
class PageController extends State<Page> {