diff --git a/lib/pages/section/bloc/section_bloc.dart b/lib/pages/section/bloc/section_bloc.dart
index 3e6ae2b..8f5c8e1 100644
--- a/lib/pages/section/bloc/section_bloc.dart
+++ b/lib/pages/section/bloc/section_bloc.dart
@@ -110,11 +110,12 @@ class SectionBloc extends Bloc<SectionEvent, SectionState> {
     }
     if (event.autoNextSection) {
       final nextCourseSection =
-          getNextCourseSection(int.parse(event.courseLessonId));
-      debugPrint("WQF nextCourseSection: $nextCourseSection");
-      ///进入课堂
-      add(RequestEnterClassEvent(nextCourseSection!.id.toString(),
-          nextCourseSection.courseType));
+          await getNextCourseSection(int.parse(event.courseLessonId));
+      if (nextCourseSection != null) {
+        ///进入课堂
+        add(RequestEnterClassEvent(nextCourseSection.id.toString(),
+            nextCourseSection.courseType));
+      }
     }
   }
 
@@ -124,13 +125,14 @@ class SectionBloc extends Bloc<SectionEvent, SectionState> {
     emitter(CurrentPageIndexState());
   }
 
-  // 未锁定的页（单元）数
+  ///未锁定的页（单元）数
   int unlockPageCount() {
     return _courseUnitEntity.courseUnitVOList
             ?.indexWhereOrNull((element) => element.lock == true) ??
         1;
   }
 
+  ///当前页的课程详情
   CourseUnitDetail getCourseUnitDetail({int? pageIndex}) {
     return _courseUnitEntity.courseUnitVOList![pageIndex ?? _currentPage];
   }
@@ -176,7 +178,8 @@ class SectionBloc extends Bloc<SectionEvent, SectionState> {
     return null;
   }
 
-  CourseSectionEntity? getNextCourseSection(int courseLessonId) {
+  ///根据courseLessonId查找下一个courseSection
+  Future<CourseSectionEntity?> getNextCourseSection(int courseLessonId) async {
     final curCourseSectionEntity = findCourseSectionById(courseLessonId);
     final curSectionSort = curCourseSectionEntity?.sortOrder ?? 0;
     final nextCourseSectionEntity = findCourseSectionBySort(curSectionSort + 1);
@@ -189,9 +192,24 @@ class SectionBloc extends Bloc<SectionEvent, SectionState> {
         final nextCourseUnitDetail = _courseUnitEntity.courseUnitVOList
             ?.firstWhere((element) => element.sortOrder == (curCourseUnitDetail.sortOrder! + 1));
         if (nextCourseUnitDetail != null) {
-          add(RequestDataEvent(nextCourseUnitDetail.id!));
-          ///pageView翻页了，可能需要预加载 todo
-          return null;
+          final courseUnitId = nextCourseUnitDetail.id!;
+          try {
+            await loading(() async {
+              _courseSectionDatasMap[courseUnitId] =
+              await LessonDao.courseSection(courseUnitId: courseUnitId);
+              emit(LessonDataLoadState());
+            });
+            _pageController.nextPage(
+              duration: const Duration(milliseconds: 500),
+              curve: Curves.ease,
+            );
+            return _courseSectionDatasMap[courseUnitId]!.first;
+          } catch (e) {
+            if (e is ApiException) {
+              showToast(e.message.toString());
+            }
+            return null;
+          }
         } else {
           ///最后一个unit了
           return null;