Yimaru-Mobile/lib/ui/views/course_lesson/course_lesson_view.dart

120 lines
3.9 KiB
Dart

import 'package:flutter/material.dart';
import 'package:stacked/stacked.dart';
import 'package:yimaru_app/models/course.dart';
import 'package:yimaru_app/models/course_lesson.dart';
import 'package:yimaru_app/ui/widgets/course_lesson_tile.dart';
import '../../common/app_colors.dart';
import '../../common/enmus.dart';
import '../../common/ui_helpers.dart';
import '../../widgets/custom_circular_progress_indicator.dart';
import '../../widgets/small_app_bar.dart';
import 'course_lesson_viewmodel.dart';
class CourseLessonView extends StackedView<CourseLessonViewModel> {
final Course course;
const CourseLessonView({Key? key, required this.course}) : super(key: key);
@override
void onViewModelReady(CourseLessonViewModel viewModel) async {
await viewModel.getCourseLessons(course.id ?? 0);
super.onViewModelReady(viewModel);
}
@override
CourseLessonViewModel viewModelBuilder(BuildContext context) =>
CourseLessonViewModel();
@override
Widget builder(
BuildContext context,
CourseLessonViewModel viewModel,
Widget? child,
) =>
_buildScaffoldWrapper(viewModel);
Widget _buildScaffoldWrapper(CourseLessonViewModel viewModel) => Scaffold(
backgroundColor: kcBackgroundColor,
body: _buildScaffold(viewModel),
);
Widget _buildScaffold(CourseLessonViewModel viewModel) =>
SafeArea(child: _buildBody(viewModel));
Widget _buildBody(CourseLessonViewModel viewModel) => Padding(
padding: const EdgeInsets.symmetric(horizontal: 15),
child: _buildColumn(viewModel),
);
Widget _buildColumn(CourseLessonViewModel viewModel) => Column(
children: [
verticalSpaceMedium,
_buildAppBar(viewModel),
verticalSpaceMedium,
_buildLessonColumnWrapper(viewModel),
],
);
Widget _buildAppBar(CourseLessonViewModel viewModel) => SmallAppBar(
onPop: viewModel.pop,
showBackButton: true,
title: 'Course Detail',
);
Widget _buildLessonColumnWrapper(CourseLessonViewModel viewModel) =>
Expanded(child: _buildLessonColumnScrollView(viewModel));
Widget _buildLessonColumnScrollView(CourseLessonViewModel viewModel) =>
SingleChildScrollView(
child: _buildLessonColumn(viewModel),
);
Widget _buildLessonColumn(CourseLessonViewModel viewModel) => Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.center,
children: _buildLessonColumnChildren(viewModel),
);
List<Widget> _buildLessonColumnChildren(CourseLessonViewModel viewModel) =>
[_buildTitle(), verticalSpaceMedium, _buildListViewBuilder(viewModel)];
Widget _buildTitle() => Text(
'${course.title} course lessons',
style: style18DG700,
textAlign: TextAlign.center,
);
Widget _buildListViewBuilder(CourseLessonViewModel viewModel) =>
viewModel.busy(StateObjects.courseLessons)
? _buildProgressIndicator()
: _buildListView(viewModel);
Widget _buildProgressIndicator() => const Center(
child: CustomCircularProgressIndicator(color: kcPrimaryColor),
);
Widget _buildListView(CourseLessonViewModel viewModel) => ListView.builder(
shrinkWrap: true,
itemCount: viewModel.courseLessons.length,
physics: const NeverScrollableScrollPhysics(),
itemBuilder: (context, index) => _buildTile(
lesson: viewModel.courseLessons[index],
onPracticeTap: () async =>
await viewModel.navigateToCoursePractice(course.id ?? 0),
onVideoTap: () async => await viewModel
.navigateToCourseLessonDetail(viewModel.courseLessons[index])),
);
Widget _buildTile({
required CourseLesson lesson,
required GestureTapCallback onVideoTap,
required GestureTapCallback onPracticeTap,
}) =>
CourseLessonTile(
lesson: lesson,
onVideoTap: onVideoTap,
onPracticeTap: onPracticeTap,
);
}