인프런 커뮤니티 질문&답변

안녕하세요

강의 실습 중 오류가 발생해서 도움을 요청드립니다

현재 개발 중인 환경은 윈도우에서 안드로이드 시뮬레이터로 진행 중이며 IDE 는 인텔리제이를 사용하고 있고 gorouter 7.0.1 버전을 사용해서 실습을 하고 있습니다

GoRouter 설정 부분은 7.0.1 버전 실습 강좌를 참고해서 변경했고 정상적으로 로그인 및 스플래시 스크린까지 동작을 했습니다.

레스토랑 리스트에서 레스토랑 상세화면으로 이동하는 부분을 실습 중 오류가 발생합니다

첫번째. context에서 gorouter 관련 메소드가 자동완성이 안되며 실제로 동작도 하지 않습니다.

두번째. context.named() ,context.go() 둘 다 아래와 같은 오류가 나타납니다

1. 레스토랑 스크린

import 'package:actual/common/component/pagination_list_view.dart';
import 'package:actual/restaurant/component/restaurant_card.dart';
import 'package:actual/restaurant/provider/restaurant_provider.dart';
import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart'; // 미사로 나옵니다

class RestaurantScreen extends StatelessWidget {
  const RestaurantScreen({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return PaginationListView(
      provider: restaurantProvider,
      itemBuilder: <RestaurantModel>(context, index, model) {
        return GestureDetector(
          onTap: () {
            context.go("/restaurant/${model.id}");
          },
          child: RestaurantCard.fromModel(model: model),
        );
      },
    );
  }
}

2. 레스토랑 디테일 스크린

   import 'package:actual/common/layout/default_layout.dart';
   import 'package:actual/common/model/cursor_pagination_model.dart';
   import 'package:actual/common/utils/pagination_utils.dart';
   import 'package:actual/product/componet/product_card.dart';
   import 'package:actual/rating/component/rating_card.dart';
   import 'package:actual/rating/model/rating_model.dart';
   import 'package:actual/restaurant/component/restaurant_card.dart';
   import 'package:actual/restaurant/model/restaurant_detail_model.dart';
   import 'package:actual/restaurant/model/restaurant_model.dart';
   import 'package:actual/restaurant/provider/restaurant_provider.dart';
   import 'package:actual/restaurant/provider/restaurant_rating_provider.dart';
   import 'package:flutter/material.dart';
   import 'package:flutter_riverpod/flutter_riverpod.dart';
   import 'package:skeletons/skeletons.dart';
   
   class RestaurantDetailScreen extends ConsumerStatefulWidget {
     static String get routeName => "restaurantDetail";
     final String id;
   
     const RestaurantDetailScreen({required this.id, Key? key}) : super(key: key);
   
     @override
     ConsumerState<RestaurantDetailScreen> createState() =>
         _RestaurantDetailScreenState();
   }
   
   class _RestaurantDetailScreenState
       extends ConsumerState<RestaurantDetailScreen> {
     final ScrollController controller = ScrollController();
     
     @override
     void initState() {
       super.initState();
       ref.read(restaurantProvider.notifier).getDetail(id: widget.id);
       controller.addListener(listener);
     }
     
     void listener(){
       PaginationUtils.paginate(controller: controller, provider: ref.read(restaurantRatingProvider(widget.id).notifier));
     } 
     
     @override
     Widget build(BuildContext context) {
       final state = ref.watch(restaurantDetailProvider(widget.id));
       final ratingsState = ref.watch(restaurantRatingProvider(widget.id));
   
       print(ratingsState);
   
       if (state == null) {
         return DefaultLayout(
           child: Center(
             child: CircularProgressIndicator(),
           ),
         );
       }
   
       return DefaultLayout(
         title: "제목",
         child: CustomScrollView(
           controller: controller,
           slivers: [
             renderTop(
               model: state,
             ),
             if (state is! RestaurantDetailModel) renderLoading(),
             if (state is RestaurantDetailModel) renderLabel(),
             if (state is RestaurantDetailModel)
               renderProducts(products: state.products),
             if (ratingsState is CursorPagination<RatingModel>)
               renderRatings(
                 models: ratingsState.data,
               ),
           ],
         ),
       );
     }
   
     SliverToBoxAdapter renderTop({
       required RestaurantModel model,
     }) {
       // 일반 위젯 넣기
       return SliverToBoxAdapter(
         child: RestaurantCard.fromModel(model: model, isDetail: true),
       );
     }
   
     SliverPadding renderRatings({
       required List<RatingModel> models,
     }) {
       return SliverPadding(
         padding: EdgeInsets.symmetric(horizontal: 16.0, vertical: 16.0),
        sliver: SliverList(
          delegate: SliverChildBuilderDelegate(
              (_, index) => Padding(
                padding: const EdgeInsets.only(bottom: 16.0),
                child: RatingCard.fromModel(
                  model: models[index],
                ),
              ),
            childCount: models.length,
          ),
        ),
       );
     }
   
     SliverPadding renderLoading() {
       return SliverPadding(
         padding: EdgeInsets.symmetric(
           vertical: 16.0,
           horizontal: 16.0,
         ),
         sliver: SliverList(
           delegate: SliverChildListDelegate(
             List.generate(
               3,
               (index) => Padding(
                 padding: const EdgeInsets.only(bottom: 32.0),
                 child: SkeletonParagraph(
                   style: SkeletonParagraphStyle(
                     lines: 5,
                     padding: EdgeInsets.zero,
                   ),
                 ),
               ),
             ),
           ),
         ),
       );
     }
   
     SliverPadding renderLabel() {
       return SliverPadding(
         padding: EdgeInsets.symmetric(horizontal: 16.0),
         sliver: SliverToBoxAdapter(
           child: Text(
             "메뉴",
             style: TextStyle(
               fontSize: 18.0,
               fontWeight: FontWeight.w500,
             ),
           ),
         ),
       );
     }
   
     SliverPadding renderProducts({
       required List<RestaurantProductModel> products,
     }) {
       return SliverPadding(
         padding: EdgeInsets.symmetric(horizontal: 16.0),
         sliver: SliverList(
           delegate: SliverChildBuilderDelegate(
             (context, index) {
               final model = products[index];
   
               return Padding(
                 padding: const EdgeInsets.only(top: 16.0),
                 child: ProductCard.fromRestaurantProductModel(model: model),
               );
             },
             childCount: products.length,
           ),
         ),
       );
     }
   }

3. 라우터 설정부분 (auth_provider.dart)

   List<GoRoute> get routes => [
         GoRoute(
           path: "/",
           name: RootTab.routeName,
           builder: (_, state) => RootTab(),
           routes: [
             GoRoute(
               path: "restaurant/:rid",
               name: RestaurantDetailScreen.routeName,
               builder: (_, state) => RestaurantDetailScreen(
                 id: state.pathParameters['rid']!,
               ),
             ),
           ],
         ),
         GoRoute(
           path: "/splash",
           name: SplashScreen.routeName,
           builder: (_, state) => SplashScreen(),
         ),
         GoRoute(
           path: "/login",
           name: LoginScreen.routeName,
           builder: (_, state) => LoginScreen(),
         ),
       ];

4. 메인

   import 'package:actual/common/provider/go_router.dart';
   import 'package:flutter/material.dart';
   import 'package:flutter_riverpod/flutter_riverpod.dart';
   
   void main() {
     runApp(
       ProviderScope(
         child: _App(),
       ),
     );
   }
   
   class _App extends ConsumerWidget {
     const _App({Key? key}) : super(key: key);
   
     // 라우팅시 BuildContext 사용하기 위한 구조
     @override
     Widget build(BuildContext context, WidgetRef ref) {
       final router = ref.watch(routerProvider);
   
       return MaterialApp.router(
         theme: ThemeData(
           fontFamily: "NotoSans",
         ),
         debugShowCheckedModeBanner: false,
         routerConfig: router,
       );
     }
   }

5. 라우트 프로바이더 (go_router. dart)

   import 'package:actual/user/provider/auth_provider.dart';
   import 'package:flutter_riverpod/flutter_riverpod.dart';
   import 'package:go_router/go_router.dart';
   
   final routerProvider = Provider<GoRouter>((ref) {
     final provider = ref.read(authProvider);
   
     return GoRouter(
       routes: provider.routes,
       initialLocation: "/splash",
       refreshListenable: provider,
       redirect: (context, state) {
         return provider.redirectLogic(state);
       },
     );
   });
   

오류 로그

======== Exception caught by gesture ===============================================================
The following NoSuchMethodError was thrown while handling a gesture:
Class 'ConsumerStatefulElement' has no instance method 'go'.
Receiver: Instance of 'ConsumerStatefulElement'
Tried calling: go("/restaurant/5ac83bfb-f2b5-55f4-be3c-564be3f01a5b")

When the exception was thrown, this was the stack: 
#0      Object.noSuchMethod (dart:core-patch/object_patch.dart:38:5)
#1      RestaurantScreen.build.<anonymous closure>.<anonymous closure> (package:actual/restaurant/view/restaurant_screen.dart:17:21)
#2      GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.dart:275:24)
#3      TapGestureRecognizer.handleTapUp (package:flutter/src/gestures/tap.dart:654:11)
#4      BaseTapGestureRecognizer._checkUp (package:flutter/src/gestures/tap.dart:311:5)
#5      BaseTapGestureRecognizer.acceptGesture (package:flutter/src/gestures/tap.dart:281:7)
#6      GestureArenaManager.sweep (package:flutter/src/gestures/arena.dart:167:27)
#7      GestureBinding.handleEvent (package:flutter/src/gestures/binding.dart:469:20)
#8      GestureBinding.dispatchEvent (package:flutter/src/gestures/binding.dart:445:22)
#9      RendererBinding.dispatchEvent (package:flutter/src/rendering/binding.dart:331:11)
#10     GestureBinding._handlePointerEventImmediately (package:flutter/src/gestures/binding.dart:400:7)
#11     GestureBinding.handlePointerEvent (package:flutter/src/gestures/binding.dart:363:5)
#12     GestureBinding._flushPointerEventQueue (package:flutter/src/gestures/binding.dart:320:7)
#13     GestureBinding._handlePointerDataPacket (package:flutter/src/gestures/binding.dart:293:9)
#14     _invoke1 (dart:ui/hooks.dart:158:13)
#15     PlatformDispatcher._dispatchPointerDataPacket (dart:ui/platform_dispatcher.dart:382:7)
#16     _dispatchPointerDataPacket (dart:ui/hooks.dart:91:31)
Handler: "onTap"
Recognizer: TapGestureRecognizer#cc27d
  debugOwner: GestureDetector
  state: ready
  won arena
  finalPosition: Offset(158.8, 246.5)
  finalLocalPosition: Offset(142.8, 190.5)
  button: 1
  sent tap down
====================================================================================================
F/crash_dump32(30915): crash_dump.cpp:474] failed to attach to thread 188: Permission denied