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diplomatic-quarter/lib/pages/learning/course_list.dart

207 lines
8.3 KiB
Dart

import 'dart:async';
import 'package:cached_network_image/cached_network_image.dart';
import 'package:diplomaticquarterapp/core/enum/viewstate.dart';
import 'package:diplomaticquarterapp/extensions/string_extensions.dart';
import 'package:diplomaticquarterapp/models/course/education_journey_list_model.dart' as model;
import 'package:diplomaticquarterapp/pages/learning/scroll_widget.dart';
import 'package:diplomaticquarterapp/routes.dart';
import 'package:diplomaticquarterapp/services/course_service/course_service.dart';
import 'package:diplomaticquarterapp/uitl/gif_loader_dialog_utils.dart';
import 'package:diplomaticquarterapp/widgets/others/app_scaffold_widget.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
class CourseList extends StatefulWidget {
@override
State<CourseList> createState() => _CourseListState();
}
class _CourseListState extends State<CourseList> {
CourseServiceProvider? _courseServiceProvider;
GlobalKey _cardKey = GlobalKey();
@override
void initState() {
super.initState();
_courseServiceProvider = context.read<CourseServiceProvider>();
_courseServiceProvider!.getCourses(context);
}
@override
void dispose() {
_clearData();
super.dispose();
}
Future<void> _clearData() async {
await _courseServiceProvider!.postNabedJourneyData();
await _courseServiceProvider!.clearData();
}
@override
Widget build(BuildContext context) {
return AppScaffold(
isShowAppBar: false,
isShowDecPage: false,
showNewAppBarTitle: true,
showNewAppBar: true,
appBarTitle: "Learning",
backgroundColor: Color(0xFFF7F7F7),
onTap: () {},
body: Consumer<CourseServiceProvider>(builder: (context, provider, child) {
if (provider.nabedJourneyResponse != null) {
return ListViewSeparatedExtension.separatedWithScrollListener(
itemCount: provider.data!.length,
itemBuilder: (context, index) {
List<model.ContentClass> conClass = provider.data![index].contentClasses!;
model.Datum data = provider.data![index];
return Card(
key: index == 0 ? _cardKey : null,
margin: EdgeInsets.only(left: 20, right: 20, top: 20),
shape: RoundedRectangleBorder(
side: BorderSide(width: 1, color: Color(0xFFEFEFEF)),
borderRadius: BorderRadius.circular(10.0), // Set your desired radius here
),
child: Padding(
padding: EdgeInsets.all(12.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
ClipRRect(
borderRadius: BorderRadius.circular(10),
child: CachedNetworkImage(
imageUrl: conClass.first.image!.thumbUrl!,
width: double.infinity,
height: MediaQuery.of(context).size.height * .25,
imageBuilder: (context, imageProvider) => Container(
decoration: BoxDecoration(
image: DecorationImage(
image: imageProvider,
fit: BoxFit.cover,
//colorFilter: ColorFilter.mode(Colors.red, BlendMode.colorBurn),
),
),
),
placeholder: (context, url) => Center(child: CircularProgressIndicator()),
errorWidget: (context, url, error) => Icon(Icons.error),
),
),
SizedBox(height: 20.0),
Text(
conClass.first.title ?? "",
// "Basics of Heart",
style: TextStyle(
fontSize: 16.0,
height: 24 / 16,
color: Color(0xFF2E303A),
fontWeight: FontWeight.w600,
),
),
SizedBox(height: 2.0),
Text(
//data.date!.toIso8601String(),
"Heart diseases include conditions like coronary and heart failure, often caused by factors ",
style: TextStyle(fontSize: 10.0, height: 15 / 10, color: Color(0xFF575757)),
),
SizedBox(height: 6.0),
Text(
"${data.stats!.videosReadCount} of ${data.stats!.videosCount} Watched",
// conClass.first.readPercentage.toString() + "% Watched",
// "2 Hours",
style: TextStyle(
fontSize: 10.0,
height: 15 / 10,
color: Color(0xFF2E303A),
fontWeight: FontWeight.w600,
),
),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Row(
mainAxisAlignment: MainAxisAlignment.start,
children: [
Icon(
Icons.play_arrow,
),
Text(
"${data.stats!.videosCount} Videos",
// conClass.first.readPercentage.toString() + "% Watched",
// "2 Hours",
style: TextStyle(
fontSize: 10.0,
height: 15 / 10,
color: Color(0xFF2E303A),
fontWeight: FontWeight.w600,
),
),
],
),
SizedBox(
width: 8,
),
Icon(
Icons.arrow_right_alt,
size: 18.0,
color: Color(0xFF2B353E),
),
],
),
],
),
),
).onTap(() {
provider.insertJourneyListData(index, true);
provider.navigate(context, data.id!, conClass.first.title!, onBack: (val) {
// provider.uploadStats();
provider.clear();
});
});
},
separatorBuilder: (context, index) {
return SizedBox();
},
onScroll: onScroll,
);
} else {
return SizedBox();
}
}),
);
}
final Set<int> _visibleCardIds = {};
void onScroll(ScrollNotification notification, ScrollController controller, int itemCount) {
double _cardHeight = _getCardSize();
if (_cardHeight > 0) {
final double offset = controller.offset;
final double screenHeight = MediaQuery.of(context).size.height;
int firstVisibleIndex = (offset / _cardHeight).floor();
int lastVisibleIndex = ((offset + screenHeight) / _cardHeight).ceil();
Set<int> newlyVisibleCards = {};
for (int index = firstVisibleIndex; index <= lastVisibleIndex && index < itemCount; index++) {
final double cardStartOffset = index * _cardHeight;
final double cardEndOffset = cardStartOffset + _cardHeight;
if (cardStartOffset >= offset && cardEndOffset <= offset + screenHeight) {
if (!_visibleCardIds.contains(index)) {
newlyVisibleCards.add(index);
_courseServiceProvider!.insertJourneyListData(index, false);
}
}
}
_visibleCardIds.addAll(newlyVisibleCards);
}
}
double _getCardSize() {
final RenderBox renderBox = _cardKey.currentContext?.findRenderObject() as RenderBox;
final cardHeight = renderBox.size.height;
return cardHeight;
}
}