app/lib/components/menu.dart
2022-05-23 09:35:45 +07:00

319 lines
12 KiB
Dart

import 'dart:math' as math;
import 'package:universal_html/html.dart' as html;
import 'package:flutter/material.dart';
import 'package:nekoya_flutter/data/auth.dart';
import 'package:nekoya_flutter/screens/products.dart';
import 'package:nekoya_flutter/screens/cart.dart';
import 'package:nekoya_flutter/screens/sessions.dart';
import 'package:nekoya_flutter/screens/transactions.dart';
import 'package:nekoya_flutter/screens/home.dart';
class Menu extends StatefulWidget {
const Menu({Key? key, required this.initialScreen}) : super(key: key);
final int initialScreen;
@override
State<Menu> createState() => _MenuState();
}
class _MenuState extends State<Menu> {
int _selectedIndex = 2;
late Widget _selectedWidget;
@override
void initState() {
if (widget.initialScreen == 0) {
_selectedWidget = const Sessions();
} else if (widget.initialScreen == 1) {
_selectedWidget = const Products();
} else if (widget.initialScreen == 2) {
_selectedWidget = const Home();
} else if (widget.initialScreen == 3) {
_selectedWidget = const Cart();
} else if (widget.initialScreen == 4) {
_selectedWidget = const Transactions();
}
super.initState();
}
@override
Widget build(BuildContext context) {
return Scaffold(
extendBody: true,
body: _selectedWidget,
bottomNavigationBar: Navigation(
itemIcons: const [
Icons.settings,
Icons.list_alt_rounded,
Icons.shopping_cart,
Icons.wysiwyg
],
centerIcon: Icons.home,
selectedIndex: _selectedIndex,
onItemPressed: onPressed,
),
);
}
void onPressed(index) {
setState(() {
var oldSelectedIndex = _selectedIndex;
_selectedIndex = index;
if (index == 0) {
_selectedWidget = const Sessions();
checkSessionExist().then((isLoggedIn) {
if (!isLoggedIn) {
_selectedIndex = oldSelectedIndex;
Navigator.of(context).pushReplacement(MaterialPageRoute(
builder: (context) => const Menu(initialScreen: 2)));
Navigator.pushNamed(context, '/login');
}
});
} else if (index == 1) {
html.window.history.pushState(null, '', '/#/products');
_selectedWidget = const Products();
} else if (index == 2) {
html.window.history.pushState(null, '', '');
_selectedWidget = const Home();
} else if (index == 3) {
html.window.history.pushState(null, '', '/#/cart');
_selectedWidget = const Cart();
} else if (index == 4) {
_selectedWidget = const Transactions();
checkSessionExist().then((isLoggedIn) {
if (!isLoggedIn) {
_selectedIndex = oldSelectedIndex;
Navigator.of(context).pushReplacement(MaterialPageRoute(
builder: (context) => const Menu(initialScreen: 2)));
Navigator.pushNamed(context, '/login');
}
});
}
});
}
}
class Navigation extends StatelessWidget {
final List<IconData> itemIcons;
final IconData centerIcon;
final int selectedIndex;
final Function(int) onItemPressed;
final double? height;
final Color selectedColor;
final Color selectedLightColor;
final Color unselectedColor;
const Navigation({
Key? key,
required this.itemIcons,
required this.centerIcon,
required this.selectedIndex,
required this.onItemPressed,
this.height,
this.selectedColor = const Color(0xff8B0000),
this.unselectedColor = Colors.white,
this.selectedLightColor = const Color(0xff8B0000),
}) : assert(itemIcons.length == 4 || itemIcons.length == 2,
"Item must equal 4 or 2"),
super(key: key);
@override
Widget build(BuildContext context) {
SizeConfig.initSize(context);
final height = this.height ?? getRelativeHeight(0.076);
return SizedBox(
height: height + getRelativeHeight(0.025),
child: Stack(
children: [
Align(
alignment: Alignment.bottomCenter,
child: Container(
height: height,
color: const Color(0xff1b1c1e),
child: Padding(
padding:
EdgeInsets.symmetric(horizontal: getRelativeWidth(0.1)),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
Expanded(
flex: 2,
child: Row(
mainAxisAlignment: itemIcons.length == 4
? MainAxisAlignment.spaceBetween
: MainAxisAlignment.center,
children: [
Material(
color: Colors.transparent,
child: InkWell(
customBorder: const CircleBorder(),
splashColor: selectedColor.withOpacity(0.5),
onTap: () {
onItemPressed(0);
},
child: Padding(
padding: const EdgeInsets.all(3.0),
child: Icon(
itemIcons[0],
color: selectedIndex == 0
? selectedColor
: unselectedColor,
size: getRelativeWidth(0.07),
),
),
),
),
if (itemIcons.length == 4)
Material(
color: Colors.transparent,
child: InkWell(
customBorder: const CircleBorder(),
splashColor: selectedColor.withOpacity(0.5),
onTap: () {
onItemPressed(1);
},
child: Padding(
padding: const EdgeInsets.all(3.0),
child: Icon(
itemIcons[1],
color: selectedIndex == 1
? selectedColor
: unselectedColor,
),
),
),
),
],
),
),
const Spacer(flex: 3),
Expanded(
flex: 2,
child: Row(
mainAxisAlignment: itemIcons.length == 4
? MainAxisAlignment.spaceBetween
: MainAxisAlignment.center,
children: [
Material(
color: Colors.transparent,
child: InkWell(
customBorder: const CircleBorder(),
splashColor: selectedColor.withOpacity(0.5),
onTap: () {
onItemPressed(itemIcons.length == 4 ? 3 : 2);
},
child: Padding(
padding: const EdgeInsets.all(3.0),
child: Icon(
itemIcons[itemIcons.length == 4 ? 2 : 1],
color: selectedIndex ==
(itemIcons.length == 4 ? 3 : 2)
? selectedColor
: unselectedColor,
),
),
),
),
if (itemIcons.length == 4)
Material(
color: Colors.transparent,
child: InkWell(
customBorder: const CircleBorder(),
splashColor: selectedColor.withOpacity(0.5),
onTap: () {
onItemPressed(4);
},
child: Padding(
padding: const EdgeInsets.all(3.0),
child: Icon(
itemIcons[3],
color: selectedIndex == 4
? selectedColor
: unselectedColor,
),
),
),
),
],
),
),
],
),
),
),
),
Positioned.fill(
child: Align(
alignment: Alignment.topCenter,
child: Transform.rotate(
angle: -math.pi / 4,
child: Material(
color: Colors.transparent,
child: InkWell(
customBorder: const CircleBorder(),
onTap: () {
onItemPressed(itemIcons.length == 4 ? 2 : 1);
},
child: Container(
decoration: BoxDecoration(
boxShadow: [
BoxShadow(
blurRadius: 25,
offset: const Offset(0, 5),
color: selectedColor.withOpacity(0.75),
)
],
borderRadius:
const BorderRadius.all(Radius.circular(18)),
gradient: LinearGradient(
begin: Alignment.topCenter,
end: Alignment.bottomCenter,
colors: [
selectedLightColor,
selectedColor,
],
),
),
height: getRelativeWidth(0.135),
width: getRelativeWidth(0.135),
child: Center(
child: Transform.rotate(
angle: math.pi / 4,
child: Icon(
centerIcon,
color: Colors.white,
size: getRelativeWidth(0.07),
),
)),
),
),
),
),
),
)
],
),
);
}
}
class SizeConfig {
static double screenWidth = 0;
static double screenHeight = 0;
static initSize(BuildContext context) {
final mediaQuery = MediaQuery.of(context);
screenWidth = mediaQuery.size.width;
screenHeight = mediaQuery.size.height;
}
}
double getRelativeHeight(double percentage) {
return percentage * SizeConfig.screenHeight;
}
double getRelativeWidth(double percentage) {
return percentage * SizeConfig.screenWidth;
}