在 Flutter 中使用 Hive 未为类型“Object”定义方法“get”

Question

I am facing this kind of issue while I'm trying to cache News from WordPress website by using Hive library, I'm getting this issue in code, The method 'get' isn't defined for the type 'Object' on " box?.get ". It is the first time I use Hive on Flutter How can I solve this issue?

import 'package:hive_flutter/hive_flutter.dart';
import 'package:hive/hive.dart';

const String SETTINGS_BOX = "settings";
const String API_BOX = "api_data";
///
Future main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp();
  await SystemChrome.setPreferredOrientations([
    DeviceOrientation.portraitUp,
    DeviceOrientation.portraitDown,
  ]);
  SystemChrome.setSystemUIOverlayStyle(
    const SystemUiOverlayStyle(
      statusBarColor: Color(0xFF0D47A1),
     
    ),
  );
  setupLocator();

  await Hive.initFlutter();
  await Hive.openBox(SETTINGS_BOX);
  await Hive.openBox(API_BOX);

  runApp(MyApp());
}

/// ignore: must_be_immutable
class MyApp extends StatelessWidget {
  late final List<Article> posts;
  var data;

  @override
  Widget build(BuildContext context) {
    print(Hive.box(SETTINGS_BOX).get("welcome_shown"));
    return ValueListenableBuilder(
      valueListenable: Hive.box(SETTINGS_BOX).listenable(),
      builder: (context, box, child) => box?.get('welcome_shown', defaultValue: false)
          ? HomePage()
          : MultiProvider(
        providers: [
          Provider(create: (context) => FavoriteListModel()),
          ChangeNotifierProxyProvider<FavoriteListModel, FavoritePageModel>(
            create: (context) => FavoritePageModel(),
            update: (context, favoritelist, favoritepage) {
              if (favoritepage == null) {
                throw ArgumentError.notNull('favoritepage');
              }
              favoritepage.favoritelist = favoritelist;
              return favoritepage;
            },
          ),
        ],
        child: MaterialApp(
          initialRoute: "/splashScreen",
          routes: {
            "/splashScreen": (_) => SplashScreen(),
            "/presentationScreens": (_) => OnboardingScreens(),
            "/homepage": (_) => HomePage(),
          },
        ),
      ),
    );
  }
}

Answer 1

Have you registered the box adapter?

await Hive.initFlutter();
Hive.registerAdapter(<YOUR ADAPTER>);

https://pub.dev/packages/hive/example