lesson_bloc.dart
1.55 KB
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import 'package:flutter/cupertino.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:flutter_easyloading/flutter_easyloading.dart';
import 'package:wow_english/common/request/dao/home_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';
part 'lesson_event.dart';
part 'lesson_state.dart';
class LessonBloc extends Bloc<LessonEvent, LessonState> {
final int pageIndex;
final PageController pageController;
int _currentPageIndex = 0;
int get currentPageIndex => _currentPageIndex;
List<CourseModuleEntity?> _listData = [];
List<CourseModuleEntity?> get listData => _listData;
LessonBloc(this.pageIndex, this.pageController) : super(LessonInitial()) {
_currentPageIndex = pageIndex;
on<PageViewChangeIndexEvent>(_pageIndexChange);
}
Future<void> requestData() async {
try {
await loading(() async {
var list = await HomeDao.courseModule();
if (list?.isNotEmpty == true) {
_listData = list!;
emit(LessonDataLoadState());
} else {
EasyLoading.showToast("数据获取失败！");
}
});
} catch (e) {
if (e is ApiException) {
}
}
}
void _pageIndexChange(PageViewChangeIndexEvent event, Emitter<LessonState> emitter) async {
_currentPageIndex = event.index;
emitter(PageIndexChangeState());
}
@override
Future<void> close() {
pageController.dispose();
return super.close();
}
}