module_bloc.dart
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import 'package:flutter/cupertino.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:wow_english/common/request/dao/lesson_dao.dart';
import 'package:wow_english/common/request/exception.dart';
import 'package:wow_english/models/course_module_entity.dart';
import 'package:wow_english/utils/loading.dart';
import 'package:wow_english/utils/toast_util.dart';
part 'module_event.dart';
part 'module_state.dart';
class ModuleBloc extends Bloc<ModuleEvent, ModuleState> {
final int pageIndex;
final PageController pageController;
int _currentPageIndex = 0;
int get currentPageIndex => _currentPageIndex;
List<CourseModuleEntity?> _listData = [];
List<CourseModuleEntity?> get listData => _listData;
ModuleBloc(this.pageIndex, this.pageController) : super(ModuleInitial()) {
_currentPageIndex = pageIndex;
on<PageViewChangeIndexEvent>(_pageIndexChange);
on<RequestDataEvent>(_requestData);
}
void _pageIndexChange(PageViewChangeIndexEvent event, Emitter<ModuleState> emitter) async {
_currentPageIndex = event.index;
emitter(PageIndexChangeState());
}
void _requestData(RequestDataEvent event, Emitter<ModuleState> emitter) async {
try {
await loading(() async {
_listData = await LessonDao.courseModule() ?? [];
emitter(ModuleDataLoadState());
});
} catch (e) {
if (e is ApiException) {
showToast(e.message ?? '请求失败,请检查网络连接');
}
}
}
@override
Future<void> close() {
pageController.dispose();
return super.close();
}
}