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Flutter: magic, initial prototype
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import 'dart:math'; | |
import 'dart:ui'; | |
import 'package:flutter/material.dart'; | |
void main() async { | |
runApp(MyApp()); | |
} | |
/// Represents some additional [Color]s to be used | |
/// across the application | |
class Palette { | |
static final background = Color(0xff202030); | |
static final background700 = Color(0xff303040); | |
static final accent = Colors.deepPurpleAccent.shade200; | |
} | |
class MyApp extends StatelessWidget { | |
// This widget is the root of your application. | |
@override | |
Widget build(BuildContext context) { | |
var textTheme = Typography.whiteMountainView.copyWith( | |
subtitle: Typography.whiteMountainView.subtitle.copyWith( | |
fontWeight: FontWeight.w900, | |
), | |
title: Typography.whiteMountainView.title.copyWith( | |
fontWeight: FontWeight.w900, | |
letterSpacing: -1, | |
fontSize: 28, | |
color: Colors.white, | |
), | |
display1: TextStyle( | |
fontSize: 32, | |
fontWeight: FontWeight.w600, | |
letterSpacing: -2, | |
), | |
caption: Typography.whiteMountainView.caption.copyWith( | |
fontStyle: FontStyle.italic, | |
), | |
); | |
return MaterialApp( | |
theme: ThemeData.dark().copyWith( | |
textTheme: textTheme, | |
accentColor: Palette.accent, | |
scaffoldBackgroundColor: Palette.background, | |
backgroundColor: Palette.background, | |
), | |
home: Root(), | |
); | |
} | |
} | |
/// Application root container | |
class Root extends StatelessWidget { | |
@override | |
Widget build(BuildContext context) { | |
return Scaffold( | |
body: Stack( | |
children: <Widget>[ | |
// Black backdrop when outscrolling | |
// the view to the top | |
Container( | |
color: Colors.black, | |
height: 350, | |
), | |
SingleChildScrollView( | |
physics: BouncingScrollPhysics(), | |
child: Container( | |
decoration: BoxDecoration( | |
gradient: LinearGradient( | |
begin: Alignment.topCenter, | |
end: Alignment.bottomCenter, | |
colors: [ | |
Colors.black, | |
Palette.background, | |
], | |
stops: [ | |
0, | |
.2 | |
]), | |
), | |
child: Column( | |
children: <Widget>[ | |
Toolbar(), | |
Categories(), | |
Padding( | |
padding: const EdgeInsets.all(32.0), | |
child: Quote( | |
body: | |
'It\'s still magic even if you know how it\'s done. 🔮', | |
author: 'Terry Pratchett, A Hat Full of Sky', | |
), | |
), | |
ProductSetout(products: firstRowProducts.values.toList()), | |
ProductSetout(products: secondRowProducts.values.toList()), | |
Container( | |
height: 80, | |
) | |
], | |
), | |
), | |
), | |
Positioned( | |
bottom: 0, | |
left: 0, | |
right: 0, | |
height: 80, | |
child: Cart(), | |
) | |
], | |
), | |
); | |
} | |
} | |
class Quote extends StatelessWidget { | |
final String body; | |
final String author; | |
const Quote({this.body, this.author}); | |
@override | |
Widget build(BuildContext context) { | |
var textTheme = Theme.of(context).textTheme; | |
return Container( | |
child: Row( | |
crossAxisAlignment: CrossAxisAlignment.start, | |
children: <Widget>[ | |
Icon( | |
Icons.format_quote, | |
size: 40.0, | |
), | |
Expanded( | |
child: Column( | |
crossAxisAlignment: CrossAxisAlignment.start, | |
children: <Widget>[ | |
Text( | |
'$body', | |
style: textTheme.display1, | |
), | |
Container( | |
height: 8.0, | |
), | |
Text( | |
author, | |
style: textTheme.caption, | |
) | |
], | |
), | |
), | |
], | |
), | |
); | |
} | |
} | |
class Categories extends StatelessWidget { | |
@override | |
Widget build(BuildContext context) { | |
return Container( | |
height: 20, | |
child: ListView( | |
scrollDirection: Axis.horizontal, | |
physics: BouncingScrollPhysics(), | |
children: <Widget>[ | |
Category(name: 'All', selected: true), | |
Category(name: 'Cards'), | |
Category(name: 'Coins'), | |
Category(name: 'Mentalism'), | |
Category(name: 'Comedy'), | |
], | |
), | |
); | |
} | |
} | |
class Category extends StatelessWidget { | |
final String name; | |
final bool selected; | |
Category({ | |
this.name, | |
this.selected = false, | |
}); | |
@override | |
Widget build(BuildContext context) { | |
return Container( | |
margin: const EdgeInsets.symmetric(horizontal: 32.0), | |
padding: selected ? const EdgeInsets.symmetric(horizontal: 8.0) : null, | |
decoration: BoxDecoration( | |
borderRadius: BorderRadius.circular(16.0), | |
color: selected ? Colors.white : Colors.transparent, | |
), | |
child: Text( | |
name.toUpperCase(), | |
style: Theme.of(context).textTheme.subtitle.copyWith( | |
height: 1.3, color: selected ? Palette.background : Colors.white), | |
), | |
); | |
} | |
} | |
class Toolbar extends StatelessWidget { | |
@override | |
Widget build(BuildContext context) { | |
return Container( | |
padding: const EdgeInsets.symmetric(vertical: 48.0, horizontal: 32.0), | |
child: Row(children: <Widget>[ | |
Icon(Icons.menu), | |
flexy(), | |
Text('Pure Magic Inc.'.toUpperCase(), | |
style: Theme.of(context).textTheme.title) | |
]), | |
); | |
} | |
} | |
class ProductSetout extends StatefulWidget { | |
final List<Product> products; | |
const ProductSetout({this.products}); | |
@override | |
_ProductSetoutState createState() => _ProductSetoutState(); | |
} | |
class _ProductSetoutState extends State<ProductSetout> { | |
final Random rnd = Random(); | |
ScrollController controller; | |
@override | |
void initState() { | |
controller = ScrollController( | |
initialScrollOffset: rnd.nextInt(500).toDouble(), | |
); | |
super.initState(); | |
} | |
@override | |
Widget build(BuildContext context) { | |
return ConstrainedBox( | |
constraints: BoxConstraints.tightFor(height: 380), | |
child: ListView( | |
padding: const EdgeInsets.all(16.0), | |
controller: controller, | |
scrollDirection: Axis.horizontal, | |
physics: BouncingScrollPhysics(), | |
children: widget.products | |
.map<Widget>((product) => ProductCard(product: product)) | |
.toList(), | |
), | |
); | |
} | |
} | |
class ProductCard extends StatelessWidget { | |
final Product product; | |
ProductCard({this.product}); | |
@override | |
Widget build(BuildContext context) { | |
return Container( | |
width: 240, | |
margin: const EdgeInsets.all(16.0), | |
decoration: BoxDecoration( | |
color: Palette.background700, | |
borderRadius: BorderRadius.circular(32.0), | |
boxShadow: [ | |
BoxShadow( | |
blurRadius: 16, | |
offset: Offset(0, 16), | |
color: Colors.black26, | |
) | |
], | |
), | |
child: ClipRRect( | |
borderRadius: BorderRadius.circular(32.0), | |
child: Stack( | |
fit: StackFit.expand, | |
children: <Widget>[ | |
Container( | |
foregroundDecoration: BoxDecoration( | |
color: Colors.grey.withOpacity(.5), | |
backgroundBlendMode: BlendMode.saturation, | |
), | |
child: Image.network( | |
product.photo, | |
fit: BoxFit.cover, | |
), | |
), | |
Container( | |
decoration: BoxDecoration( | |
gradient: LinearGradient( | |
begin: Alignment.topCenter, | |
end: Alignment.bottomCenter, | |
stops: [0.2, 0.8], | |
colors: [Colors.transparent, Palette.background700], | |
), | |
), | |
), | |
Padding( | |
padding: const EdgeInsets.all(16.0), | |
child: Column( | |
crossAxisAlignment: CrossAxisAlignment.start, | |
children: <Widget>[ | |
flexy(), | |
Text( | |
product.name, | |
style: Theme.of(context).textTheme.title, | |
), | |
Container( | |
height: 8.0, | |
), | |
Text( | |
product.description, | |
style: Theme.of(context).textTheme.caption, | |
), | |
Container( | |
height: 16.0, | |
), | |
OutlineButton( | |
child: Padding( | |
padding: const EdgeInsets.all(8.0), | |
child: Row( | |
crossAxisAlignment: CrossAxisAlignment.center, | |
mainAxisAlignment: MainAxisAlignment.center, | |
children: <Widget>[ | |
Text('\$${product.price}', | |
style: Theme.of(context).textTheme.title), | |
], | |
), | |
), | |
onPressed: () { | |
print('Adding $product to cart!'); | |
}, | |
) | |
], | |
), | |
) | |
], | |
), | |
), | |
); | |
} | |
} | |
class OutlineButton extends StatelessWidget { | |
final Widget child; | |
final void Function() onPressed; | |
const OutlineButton({ | |
@required this.child, | |
@required this.onPressed, | |
}); | |
@override | |
Widget build(BuildContext context) { | |
final borderRadius = BorderRadius.circular(32.0); | |
return ClipRRect( | |
borderRadius: borderRadius, | |
child: RawMaterialButton( | |
onPressed: onPressed, | |
child: Container( | |
child: child, | |
decoration: BoxDecoration( | |
borderRadius: borderRadius, | |
border: Border.all( | |
color: Colors.white, | |
width: 3.0, | |
), | |
) | |
), | |
), | |
); | |
} | |
} | |
class Cart extends StatelessWidget { | |
@override | |
Widget build(BuildContext context) { | |
return Padding( | |
padding: const EdgeInsets.symmetric(horizontal: 8.0), | |
child: ClipRRect( | |
borderRadius: BorderRadius.only( | |
topLeft: Radius.circular(32.0), | |
topRight: Radius.circular(32.0), | |
), | |
child: BackdropFilter( | |
filter: ImageFilter.blur( | |
sigmaX: 10, | |
sigmaY: 10, | |
), | |
child: Container( | |
decoration: BoxDecoration( | |
color: Colors.white24, | |
), | |
padding: const EdgeInsets.all(16.0), | |
child: Row( | |
children: <Widget>[ | |
flexy(), | |
OutlineButton( | |
child: Padding( | |
padding: const EdgeInsets.symmetric( | |
vertical: 8.0, horizontal: 16.0), | |
child: Text( | |
'Checkout', | |
style: Theme.of(context).textTheme.title, | |
), | |
), | |
onPressed: () { | |
print('Checking out all items in the cart!'); | |
}, | |
) | |
], | |
), | |
), | |
), | |
), | |
); | |
} | |
} | |
Widget flexy() { | |
return Expanded( | |
child: Container(), | |
); | |
} | |
class Product { | |
final String name; | |
final String description; | |
final String photo; | |
final double price; | |
Product({this.name, this.description, this.photo, this.price}); | |
@override | |
String toString() => 'Product($name)'; | |
} | |
final Map<String, Product> firstRowProducts = { | |
'vanishingCoins': Product( | |
name: 'Bitcoin', | |
description: 'Make money instantly vanish in your hand!', | |
photo: | |
'https://cdn.pixabay.com/photo/2017/02/11/10/24/bitcoin-2057405__340.jpg', | |
price: 59.99, | |
), | |
'diamondsCard': Product( | |
name: 'Hand of midas', | |
description: 'Do not pet your dog with it!', | |
photo: | |
'https://www.smashinglists.com/wp-content/uploads/2010/07/Hand-of-Midas1-600x399.jpg', | |
price: 99.99, | |
), | |
'flyingCarpter': Product( | |
name: 'Flying Carpet', | |
description: 'You best last mile transport. Works for any other mile too!', | |
price: 499.99, | |
photo: | |
'https://www.smashinglists.com/wp-content/uploads/2010/07/flying-carpet-600x330.jpg', | |
), | |
}; | |
final Map<String, Product> secondRowProducts = { | |
'magicLamp': Product( | |
name: 'Magic Lamp', | |
description: 'Rub with caution, do not shake.', | |
price: 69.99, | |
photo: | |
'https://www.smashinglists.com/wp-content/uploads/2010/07/magic-lamp-600x416.jpg', | |
), | |
'theRing': Product( | |
name: 'The Ring', | |
description: | |
'Just a ring. Nothing special about it. Just move on. Do not look. Skip it.', | |
price: 89.99, | |
photo: | |
'https://www.smashinglists.com/wp-content/uploads/2010/07/onering-600x431.jpg', | |
), | |
'philosophersStone': Product( | |
name: 'Philosopher\'s stone', | |
description: | |
'Philosopher didn\'t tell what the stone is for. Should be useful.', | |
price: 129.99, | |
photo: | |
'https://static1.therichestimages.com/wordpress/wp-content/uploads/2016/11/pottermore.jpg?q=50&fit=crop&w=963&h=617'), | |
}; |
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