mobdr/lib/ui/home/flashsale.dart

345 lines
12 KiB
Dart

import 'dart:async';
import 'package:mobdr/config/constant.dart';
import 'package:mobdr/config/global_style.dart';
import 'package:mobdr/model/flashsale_model.dart';
import 'package:mobdr/ui/general/product_detail/product_detail.dart';
import 'package:mobdr/ui/home/search.dart';
import 'package:mobdr/ui/reusable/reusable_widget.dart';
import 'package:mobdr/ui/reusable/cache_image_network.dart';
import 'package:mobdr/ui/reusable/global_function.dart';
import 'package:flutter/material.dart';
class FlashSalePage extends StatefulWidget {
final int seconds;
const FlashSalePage({Key? key, this.seconds = 0}) : super(key: key);
@override
_FlashSalePageState createState() => _FlashSalePageState();
}
class _FlashSalePageState extends State<FlashSalePage> {
// initialize global function and reusable widget
final _globalFunction = GlobalFunction();
final _reusableWidget = ReusableWidget();
Timer? _flashsaleTimer;
late int _flashsaleSecond;
void _startFlashsaleTimer() {
const period = const Duration(seconds: 1);
_flashsaleTimer = Timer.periodic(period, (timer) {
setState(() {
_flashsaleSecond--;
});
if (_flashsaleSecond == 0) {
_cancelFlashsaleTimer();
}
});
}
void _cancelFlashsaleTimer() {
if (_flashsaleTimer != null) {
_flashsaleTimer?.cancel();
_flashsaleTimer = null;
}
}
@override
void initState() {
_flashsaleSecond = widget.seconds;
if (_flashsaleSecond != 0) {
_startFlashsaleTimer();
}
super.initState();
}
@override
void dispose() {
_cancelFlashsaleTimer();
super.dispose();
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
iconTheme: IconThemeData(
color: GlobalStyle.appBarIconThemeColor,
),
elevation: GlobalStyle.appBarElevation,
title: Text(
'Flash Sale',
style: GlobalStyle.appBarTitle,
),
backgroundColor: GlobalStyle.appBarBackgroundColor,
systemOverlayStyle: GlobalStyle.appBarSystemOverlayStyle,
actions: [
IconButton(
icon: Icon(Icons.search, color: BLACK_GREY),
onPressed: () {
Navigator.push(context,
MaterialPageRoute(builder: (context) => SearchPage()));
}),
],
bottom: _reusableWidget.bottomAppBar(),
),
body: WillPopScope(
onWillPop: () {
Navigator.pop(context);
return Future.value(true);
},
child: ListView(
physics: AlwaysScrollableScrollPhysics(),
children: [
buildCacheNetworkImage(
width: MediaQuery.of(context).size.width,
height: MediaQuery.of(context).size.width / 2,
url: GLOBAL_URL + '/flashsale/1.jpg'),
Container(
margin: EdgeInsets.all(16),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text('Flash sale end in :',
style: TextStyle(
fontWeight: FontWeight.bold,
fontSize: 14,
color: CHARCOAL)),
_buildFlashsaleTime(),
],
),
),
CustomScrollView(
shrinkWrap: true,
primary: false,
slivers: <Widget>[
SliverPadding(
padding: EdgeInsets.fromLTRB(12, 8, 12, 8),
sliver: SliverGrid(
gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
crossAxisCount: 2,
mainAxisSpacing: 8,
crossAxisSpacing: 8,
childAspectRatio:
GlobalStyle.gridDelegateFlashsaleRatio,
),
delegate: SliverChildBuilderDelegate(
(BuildContext context, int index) {
return _buildFlashsaleCard(index);
},
childCount: flashsaleData.length,
),
),
),
])
],
),
));
}
Widget _buildFlashsaleTime() {
int hour = _flashsaleSecond ~/ 3600;
int minute = _flashsaleSecond % 3600 ~/ 60;
int second = _flashsaleSecond % 60;
return Row(
children: [
Container(
padding: EdgeInsets.fromLTRB(3, 4, 3, 4),
decoration: BoxDecoration(
color: Colors.red, borderRadius: BorderRadius.circular(5)), //
child: Text(_globalFunction.formatTime(hour),
style: TextStyle(
color: Colors.white,
fontSize: 13,
fontWeight: FontWeight.bold)),
),
Text(' : ',
style: TextStyle(
color: Colors.red, fontSize: 13, fontWeight: FontWeight.bold)),
Container(
padding: EdgeInsets.fromLTRB(3, 4, 3, 4),
decoration: BoxDecoration(
color: Colors.red, borderRadius: BorderRadius.circular(5)), //
child: Text(_globalFunction.formatTime(minute),
style: TextStyle(
color: Colors.white,
fontSize: 13,
fontWeight: FontWeight.bold)),
),
Text(' : ',
style: TextStyle(
color: Colors.red, fontSize: 13, fontWeight: FontWeight.bold)),
Container(
padding: EdgeInsets.fromLTRB(3, 4, 3, 4),
decoration: BoxDecoration(
color: Colors.red, borderRadius: BorderRadius.circular(5)), //
child: Text(_globalFunction.formatTime(second),
style: TextStyle(
color: Colors.white,
fontSize: 13,
fontWeight: FontWeight.bold)),
)
],
);
}
Widget _buildFlashsaleCard(index) {
final double boxImageSize =
((MediaQuery.of(context).size.width) - 24) / 2 - 12;
return Container(
child: Card(
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(10),
),
elevation: 2,
color: Colors.white,
child: GestureDetector(
behavior: HitTestBehavior.translucent,
onTap: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => ProductDetailPage(
name: flashsaleData[index].name,
image: flashsaleData[index].image,
price: flashsaleData[index].price,
rating: 4,
review: 45,
sale: flashsaleData[index].sale)));
},
child: Column(
children: <Widget>[
Stack(
children: [
ClipRRect(
borderRadius: BorderRadius.only(
topLeft: Radius.circular(10),
topRight: Radius.circular(10)),
child: buildCacheNetworkImage(
width: boxImageSize,
height: boxImageSize,
url: flashsaleData[index].image)),
Positioned(
right: 0,
top: 10,
child: Container(
decoration: BoxDecoration(
color: Colors.red,
borderRadius: BorderRadius.only(
topLeft: Radius.circular(6),
bottomLeft: Radius.circular(6))),
padding: EdgeInsets.fromLTRB(12, 6, 12, 6),
child: Text(
flashsaleData[index].discount.toString() + '%',
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
fontSize: 13)),
),
),
],
),
Container(
margin: EdgeInsets.fromLTRB(8, 8, 8, 8),
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
flashsaleData[index].name,
style: GlobalStyle.productName,
maxLines: 2,
overflow: TextOverflow.ellipsis,
),
Container(
margin: EdgeInsets.only(top: 8),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(
'\$ ' +
_globalFunction.removeDecimalZeroFormat(
(100 - flashsaleData[index].discount) *
flashsaleData[index].price /
100),
style: GlobalStyle.productPrice),
Container(
margin: EdgeInsets.only(top: 5),
child: Text(
'\$ ' +
_globalFunction.removeDecimalZeroFormat(
flashsaleData[index].price),
style: GlobalStyle.productPriceDiscounted,
textAlign: TextAlign.right,
),
)
],
),
),
_createAvailableBar(flashsaleData[index].sale.toDouble(),
flashsaleData[index].countItem),
Container(
margin: EdgeInsets.only(top: 5),
child: Text(
flashsaleData[index].countItem -
flashsaleData[index].sale ==
0
? 'Sold out'
: 'Available',
style: TextStyle(
color: CHARCOAL,
fontSize: 12,
fontWeight: FontWeight.bold)),
)
],
),
),
],
),
),
),
);
}
Widget _createAvailableBar(double sale, double total) {
final double availableWidth =
((MediaQuery.of(context).size.width) - 24) / 2 - 28;
return Container(
margin: EdgeInsets.only(top: 10),
child: Container(
child: Row(
children: [
Container(
width: sale / total * (availableWidth),
height: 5,
decoration: BoxDecoration(
color: SOFT_BLUE,
borderRadius: BorderRadius.only(
topLeft: Radius.circular(10),
bottomLeft: Radius.circular(10),
topRight: Radius.circular(sale == total ? 10 : 0),
bottomRight: Radius.circular(sale == total ? 10 : 0)),
),
),
Container(
width: (total - sale) / total * (availableWidth),
height: 5,
decoration: BoxDecoration(
color: Colors.grey[300],
borderRadius: BorderRadius.only(
topLeft: Radius.circular(sale == 0 ? 10 : 0),
bottomLeft: Radius.circular(sale == 0 ? 10 : 0),
topRight: Radius.circular(10),
bottomRight: Radius.circular(10)),
),
),
],
),
),
);
}
}