Following this tutorial. https://itnext.io/app-theming-in-flutter-dark-mode-light-mode-27d9adf3cee
void main() {
WidgetsFlutterBinding.ensureInitialized();
SystemChrome.setPreferredOrientations([
DeviceOrientation.portraitUp,
DeviceOrientation.portraitDown,
]);
runApp(
ChangeNotifierProvider<AppStateNotifier>(
builder: (context) => AppStateNotifier(), //<--COMPILER ERROR, details below.
child: MyApp(),
),
);
}
class MyApp extends StatelessWidget {
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return Consumer<AppStateNotifier>(
builder: (context, appState, child) {
return MaterialApp(
title: 'Lockify',
debugShowCheckedModeBanner: false,
theme: AppTheme.lightTheme,
darkTheme:
AppTheme.darkTheme,
home: MyHomePage(),
themeMode: appState.isDarkModeOn ? ThemeMode.dark : ThemeMode.light,
);
},
);
}
}
ERROR: Compiler message: lib/main.dart:16:29: Error: A value of type 'AppStateNotifier' can't be assigned to a variable of type 'Widget'.
- 'AppStateNotifier' is from 'package:lockify/appstatenotifier.dart' ('lib/appstatenotifier.dart').
- 'Widget' is from 'package:flutter/src/widgets/framework.dart' ('../../Developer/flutter/packages/flutter/lib/src/widgets/framework.dart'). builder: (context) => AppStateNotifier(),
lib/main.dart:16:16: Error: The argument type 'Widget Function(BuildContext)' can't be assigned to the parameter type 'Widget Function(BuildContext, Widget)'.
- 'Widget' is from 'package:flutter/src/widgets/framework.dart' ('../../Developer/flutter/packages/flutter/lib/src/widgets/framework.dart').
- 'BuildContext' is from 'package:flutter/src/widgets/framework.dart' ('../../Developer/flutter/packages/flutter/lib/src/widgets/framework.dart'). builder: (context) => AppStateNotifier(),
