section_page.dart
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import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:nested_scroll_views/material.dart';
import 'package:wow_english/common/core/user_util.dart';
import 'package:wow_english/common/extension/string_extension.dart';
import 'package:wow_english/models/course_unit_entity.dart';
import 'package:wow_english/pages/section/section_type.dart';
import 'package:wow_english/pages/section/widgets/home_video_item.dart';
import 'package:wow_english/pages/section/widgets/section_bouns_item.dart';
import 'package:wow_english/pages/section/widgets/section_header_widget.dart';
import 'package:wow_english/route/route.dart';
import 'package:wow_english/utils/toast_util.dart';
import '../../models/course_section_entity.dart';
import 'bloc/section_bloc.dart';
import 'courese_module_model.dart';
/// 环节列表页
class SectionPage extends StatelessWidget {
const SectionPage(
{super.key, required this.courseUnitEntity, required this.courseUnitId});
final CourseUnitEntity courseUnitEntity;
/// unitId
final int courseUnitId;
@override
Widget build(BuildContext context) {
int initialPage = courseUnitEntity.courseUnitVOList
?.indexWhere((element) => element.id == courseUnitId) ??
0;
return BlocProvider(
create: (context) => SectionBloc(courseUnitEntity, initialPage,
PageController(initialPage: initialPage), ScrollController()),
child: _SectionPageView(context),
);
}
}
class _SectionPageView extends StatelessWidget {
const _SectionPageView(this.context);
final BuildContext context;
@override
Widget build(BuildContext context) {
final bloc = BlocProvider.of<SectionBloc>(context);
return BlocListener<SectionBloc, SectionState>(
listener: (context, state) {
if (state is RequestVideoLessonState) {
final videoUrl = bloc.processEntity?.videos?.videoUrl ?? '';
var title = '';
if (state.type == SectionType.song.value) {
title = 'song';
}
if (state.type == SectionType.video.value) {
title = 'video';
}
if (state.type == SectionType.bouns.value) {
title = 'bonus';
}
if (videoUrl.isEmpty || !videoUrl.contains('http')) {
return;
}
pushNamed(AppRouteName.lookVideo, arguments: {
'videoUrl': videoUrl,
'title': title,
'courseLessonId': state.courseLessonId,
'isTopic': true
}).then((value) {
if (value != null) {
Map<String, dynamic> dataMap = value as Map<String, dynamic>;
bloc.add(RequestEndClassEvent(
dataMap['courseLessonId']!, dataMap['isCompleted'],
currentTime: dataMap['currentTime'],
autoNextSection: dataMap['nextSection']));
}
});
return;
}
if (state is RequestEnterClassState) {
if (state.courseType != SectionType.practice.value &&
state.courseType != SectionType.pictureBook.value) {
///视频类型
///获取视频课程内容
bloc.add(RequestVideoLessonEvent(
state.courseLessonId, state.courseType));
return;
}
if (state.courseType == SectionType.pictureBook.value) {
//绘本
pushNamed(AppRouteName.reading,
arguments: {'courseLessonId': state.courseLessonId})
.then((value) {
if (value != null) {
Map<String, dynamic> dataMap = value as Map<String, dynamic>;
bloc.add(RequestEndClassEvent(
dataMap['courseLessonId']!,
dataMap['isCompleted'],
currentStep: dataMap['currentStep'],
autoNextSection: dataMap['nextSection'],
));
}
});
return;
}
if (state.courseType == SectionType.practice.value) {
//练习
pushNamed(AppRouteName.topicPic,
arguments: {'courseLessonId': state.courseLessonId})
.then((value) {
if (value != null) {
Map<String, dynamic> dataMap = value as Map<String, dynamic>;
bloc.add(RequestEndClassEvent(
dataMap['courseLessonId']!, dataMap['isCompleted'],
currentStep: dataMap['currentStep'],
autoNextSection: dataMap['nextSection']));
}
});
return;
}
}
},
child: _sectionView(),
);
}
Widget _sectionView() =>
BlocBuilder<SectionBloc, SectionState>(builder: (context, state) {
final bloc = BlocProvider.of<SectionBloc>(context);
return Scaffold(
body: Container(
color: Colors.white,
child: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
SectionHeaderWidget(
title: bloc.getCourseUnitDetail().name,
courseModuleCode: bloc.courseUnitEntity.courseModuleCode),
Expanded(
child: Padding(
padding: EdgeInsets.symmetric(horizontal: 10.w),
child: OverflowBox(
child: NestedPageView.builder(
itemCount: bloc.unlockPageCount(),
controller: bloc.pageController,
onPageChanged: (int index) {
bloc.add(CurrentUnitIndexChangeEvent(index));
},
itemBuilder: (context, index) {
return ScrollConfiguration(
///去掉 Android 上默认的边缘拖拽效果
behavior: ScrollConfiguration.of(context)
.copyWith(overscroll: false),
child: _itemTransCard(
bloc.getCourseUnitDetail(pageIndex: index),
index,
context),
);
}),
), // 设置外部padding,
)),
SafeArea(
child: Padding(
padding: EdgeInsets.symmetric(horizontal: 13.w),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
SizedBox(
height: 47.h,
width: 80.w,
),
Container(
decoration: BoxDecoration(
color: CourseModuleModel(
bloc.courseUnitEntity.courseModuleCode ??
'Phase-1')
.color,
borderRadius: BorderRadius.circular(14.5.r),
),
padding: EdgeInsets.symmetric(
vertical: 8.h, horizontal: 24.w),
child: Text(
'${bloc.currentPage + 1}/${bloc.unlockPageCount()}',
style: TextStyle(
color: Colors.white, fontSize: 12.sp),
),
),
Image.asset(
CourseModuleModel(
bloc.courseUnitEntity.courseModuleCode ??
'Phase-1')
.courseModuleLogo
.assetPng,
height: 47.h,
width: 80.w,
// color: Colors.red,
),
],
),
),
)
],
),
),
),
);
});
}
Widget _itemTransCard(
CourseUnitDetail courseUnitDetail, int pageIndex, BuildContext context) {
final bloc = BlocProvider.of<SectionBloc>(context);
List<CourseSectionEntity>? courseSectionEntities =
bloc.courseSectionDatasMap[courseUnitDetail.id];
if (courseSectionEntities == null) {
bloc.add(RequestDataEvent(courseUnitDetail.id!));
return Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
const Text(
'暂无数据',
style: TextStyle(fontSize: 24.0),
),
const SizedBox(height: 16.0),
// 间距
CircularProgressIndicator(
color: CourseModuleModel(
bloc.courseUnitEntity.courseModuleCode ?? 'Phase-1')
.color),
// 加载动画
],
),
);
} else {
return NestedListView.builder(
itemCount: bloc.courseSectionDatasMap[courseUnitDetail.id]?.length ?? 0,
scrollDirection: Axis.horizontal,
itemBuilder: (BuildContext context, int index) {
CourseSectionEntity sectionData = courseSectionEntities[index];
if (sectionData.courseType == SectionType.bouns.value) {
//彩蛋
return GestureDetector(
onTap: () {
if (!UserUtil.isLogined()) {
pushNamed(AppRouteName.login);
return;
}
if (sectionData.lock == true) {
showToast('当前课程暂未解锁');
return;
}
///进入课堂
bloc.add(RequestEnterClassEvent(
sectionData.id.toString(), sectionData.courseType));
},
child: SectionBoundsItem(
imageUrl: sectionData.coverUrl,
),
);
} else {
return GestureDetector(
onTap: () {
if (!UserUtil.isLogined()) {
pushNamed(AppRouteName.login);
return;
}
if (sectionData.lock == true) {
showToast('当前课程暂未解锁');
return;
}
///进入课堂
bloc.add(RequestEnterClassEvent(
sectionData.id.toString(), sectionData.courseType));
},
child: SectionVideoItem(
unitEntity: bloc.courseUnitEntity,
lessons: sectionData,
),
);
}
});
}
}