60e47f7c
 liangchengyou
feat:课程选择功能
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import 'package:flutter/cupertino.dart';
import 'package:flutter_bloc/flutter_bloc.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;
LessonBloc(this.pageIndex,this.pageController) : super(LessonInitial()) {
_currentPageIndex = pageIndex;
on<PageViewChangeIndexEvent>(_pageIndexChange);
}
void _pageIndexChange(PageViewChangeIndexEvent event,Emitter<LessonState> emitter) async {
_currentPageIndex = event.index;
emitter(PageIndexChangeState());
}
@override
Future<void> close() {
pageController.dispose();
return super.close();
}
}
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