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Zakharov_Rostislav:lab-5-6-7
Zakharov_Rostislav:lab-4
Zakharov_Rostislav:lab-3
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pull from: Zakharov_Rostislav:lab-4
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Zakharov_Rostislav:lab-5-6-7
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Zakharov_Rostislav:lab-3
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Zakharov_Rostislav:lab-1
Zakharov_Rostislav:main

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5 changed files with 317 additions and 104 deletions
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15
lib/domain/models/card.dart Normal file
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@ -0,0 +1,15 @@
import 'package:flutter/material.dart';
class CardData {
final String text;
final String description;
final IconData icon;
final String? imageUrl;
CardData(
this.text, {
required this.description,
this.icon = Icons.icecream,
this.imageUrl,
});
}

105
lib/main.dart
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@ -1,4 +1,5 @@
import 'package:flutter/material.dart';
import 'package:mdp_pi_33_zakharov/presentation/home_page/home_page.dart';
void main() {
runApp(const MyApp());
@ -7,27 +8,11 @@ void main() {
class MyApp extends StatelessWidget {
const MyApp({super.key});
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
// This is the theme of your application.
//
// TRY THIS: Try running your application with "flutter run". You'll see
// the application has a purple toolbar. Then, without quitting the app,
// try changing the seedColor in the colorScheme below to Colors.green
// and then invoke "hot reload" (save your changes or press the "hot
// reload" button in a Flutter-supported IDE, or press "r" if you used
// the command line to start the app).
//
// Notice that the counter didn't reset back to zero; the application
// state is not lost during the reload. To reset the state, use hot
// restart instead.
//
// This works for code too, not just values: Most code changes can be
// tested with just a hot reload.
colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
useMaterial3: true,
),
@ -35,91 +20,3 @@ class MyApp extends StatelessWidget {
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title});
// This widget is the home page of your application. It is stateful, meaning
// that it has a State object (defined below) that contains fields that affect
// how it looks.
// This class is the configuration for the state. It holds the values (in this
// case the title) provided by the parent (in this case the App widget) and
// used by the build method of the State. Fields in a Widget subclass are
// always marked "final".
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
int _counter = 0;
void _incrementCounter() {
setState(() {
// This call to setState tells the Flutter framework that something has
// changed in this State, which causes it to rerun the build method below
// so that the display can reflect the updated values. If we changed
// _counter without calling setState(), then the build method would not be
// called again, and so nothing would appear to happen.
_counter++;
});
}
@override
Widget build(BuildContext context) {
// This method is rerun every time setState is called, for instance as done
// by the _incrementCounter method above.
//
// The Flutter framework has been optimized to make rerunning build methods
// fast, so that you can just rebuild anything that needs updating rather
// than having to individually change instances of widgets.
return Scaffold(
appBar: AppBar(
// TRY THIS: Try changing the color here to a specific color (to
// Colors.amber, perhaps?) and trigger a hot reload to see the AppBar
// change color while the other colors stay the same.
backgroundColor: Theme.of(context).colorScheme.inversePrimary,
// Here we take the value from the MyHomePage object that was created by
// the App.build method, and use it to set our appbar title.
title: Text(widget.title),
),
body: Center(
// Center is a layout widget. It takes a single child and positions it
// in the middle of the parent.
child: Column(
// Column is also a layout widget. It takes a list of children and
// arranges them vertically. By default, it sizes itself to fit its
// children horizontally, and tries to be as tall as its parent.
//
// Column has various properties to control how it sizes itself and
// how it positions its children. Here we use mainAxisAlignment to
// center the children vertically; the main axis here is the vertical
// axis because Columns are vertical (the cross axis would be
// horizontal).
//
// TRY THIS: Invoke "debug painting" (choose the "Toggle Debug Paint"
// action in the IDE, or press "p" in the console), to see the
// wireframe for each widget.
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
const Text(
'You have pushed the button this many times:',
),
Text(
'$_counter',
style: Theme.of(context).textTheme.headlineMedium,
),
],
),
),
floatingActionButton: FloatingActionButton(
onPressed: _incrementCounter,
tooltip: 'Increment',
child: const Icon(Icons.add),
), // This trailing comma makes auto-formatting nicer for build methods.
);
}
}

36
lib/presentation/details_page/details_page.dart Normal file
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@ -0,0 +1,36 @@
import 'package:flutter/material.dart';
import '../../domain/models/card.dart';
class DetailsPage extends StatelessWidget {
final CardData data;
const DetailsPage(this.data, {super.key});
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(),
body: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Padding(
padding: const EdgeInsets.only(bottom: 16.0),
child: Image.network(
data.imageUrl ?? '',
),
),
Padding(
padding: const EdgeInsets.only(bottom: 4.0),
child: Text(
data.text,
style: Theme.of(context).textTheme.headlineLarge,
),
),
Text(
data.description,
style: Theme.of(context).textTheme.bodyLarge,
)
],
),
);
}
}

165
lib/presentation/home_page/card.dart Normal file
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@ -0,0 +1,165 @@
part of 'home_page.dart';
typedef OnLikeCallback = void Function(String title, bool isLiked);
class _Card extends StatefulWidget {
final String text;
final String description;
final IconData icon;
final String? imageUrl;
final OnLikeCallback? onLike;
final VoidCallback? onTap;
const _Card(
this.text, {
required this.description,
this.icon = Icons.icecream,
this.imageUrl,
this.onLike,
this.onTap,
});
factory _Card.fromData(
CardData data, {
OnLikeCallback? onLike,
VoidCallback? onTap,
}) =>
_Card(
data.text,
description: data.description,
icon: data.icon,
imageUrl: data.imageUrl,
onLike: onLike,
onTap: onTap,
);
@override
State<_Card> createState() => _CardState();
}
class _CardState extends State<_Card> {
bool isLiked = false;
@override
Widget build(BuildContext context) {
return GestureDetector(
onTap: widget.onTap,
child: Container(
margin: const EdgeInsets.only(top: 16),
constraints: const BoxConstraints(minHeight: 140),
decoration: BoxDecoration(
color: Colors.orangeAccent,
borderRadius: BorderRadius.circular(20),
border: Border.all(
color: Colors.redAccent,
width: 4,
),
boxShadow: [
BoxShadow(
color: Colors.redAccent.withOpacity(.6),
spreadRadius: 4,
offset: const Offset(0, 5),
blurRadius: 8,
),
],
),
child: IntrinsicHeight(
child: Row(
crossAxisAlignment: CrossAxisAlignment.start,
mainAxisAlignment: MainAxisAlignment.start,
children: [
ClipRRect(
borderRadius: const BorderRadius.only(
bottomLeft: Radius.circular(20),
topLeft: Radius.circular(20),
),
child: SizedBox(
height: double.infinity,
width: 100,
child: Stack(
children: [
Positioned.fill(
child: Image.network(
fit: BoxFit.cover,
widget.imageUrl ?? '',
errorBuilder: (_, __, ___) => const Placeholder(),
),
),
Align(
alignment: Alignment.bottomLeft,
child: Container(
decoration: const BoxDecoration(
color: Colors.orangeAccent,
borderRadius: BorderRadius.only(
topRight: Radius.circular(20),
),
),
padding: const EdgeInsets.fromLTRB(8, 2, 8, 2),
child: Text(
'скидка 20%',
style: Theme.of(context)
.textTheme
.bodyMedium
?.copyWith(color: Colors.black),
),
),
),
],
),
),
),
Expanded(
child: Padding(
padding: const EdgeInsets.all(8.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
widget.text,
style: Theme.of(context).textTheme.headlineLarge,
),
Text(
widget.description,
style: Theme.of(context).textTheme.bodyLarge,
),
],
),
),
),
Align(
alignment: Alignment.bottomRight,
child: Padding(
padding: const EdgeInsets.only(
left: 8,
right: 16,
bottom: 16,
),
child: GestureDetector(
onTap: () {
setState(() {
isLiked = !isLiked;
});
widget.onLike?.call(widget.text, isLiked);
},
child: AnimatedSwitcher(
duration: const Duration(milliseconds: 300),
child: isLiked
? const Icon(
color: Colors.redAccent,
Icons.favorite,
key: ValueKey(0),
)
: const Icon(
Icons.favorite_border,
key: ValueKey(1),
),
)),
),
),
],
),
),
),
);
}
}

100
lib/presentation/home_page/home_page.dart Normal file
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@ -0,0 +1,100 @@
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import '../../domain/models/card.dart';
import '../details_page/details_page.dart';
part 'card.dart';
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title});
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
final Color _color = Colors.redAccent;
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
backgroundColor: _color,
title: Text(widget.title),
),
body: const Center(child: Body()),
);
}
}
class Body extends StatelessWidget {
const Body({super.key});
@override
Widget build(BuildContext context) {
final data = [
CardData(
'Oh?',
description: 'pain',
icon: Icons.add_box,
imageUrl:
'https://www.thespruceeats.com/thmb/QjCQ4RTjmnhrovGkuJWzZCXYFX8=/1500x0/filters:no_upscale():max_bytes(150000):strip_icc()/GettyImages-90053856-588b7aff5f9b5874ee534b04.jpg',
),
CardData(
'Freeze?',
description: 'suffering',
icon: Icons.ac_unit_sharp,
imageUrl:
'https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTwgAMeszx47tsBuUK20XIByglQcnAZCOEQJw&s',
),
CardData(
'Hi?',
description: 'horror',
icon: Icons.access_alarms,
imageUrl:
'https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRsya6wSRjwvxaWlZEKn0U7gW6F2PWI54D6hw&s',
),
];
return Center(
child: SingleChildScrollView(
child: Padding(
padding: const EdgeInsets.all(8.0),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: data
.map((CardData data) => _Card.fromData(
data,
onLike: (String title, bool isLiked) =>
_showSnackBar(context, title, isLiked),
onTap: () => _navToDetails(context, data),
))
.toList(),
),
),
),
);
}
void _showSnackBar(BuildContext context, String title, bool isLiked) {
WidgetsBinding.instance.addPostFrameCallback((_) {
ScaffoldMessenger.of(context).showSnackBar(SnackBar(
content: Text(
'Ice cream $title ${isLiked ? 'liked!' : 'disliked :('}',
style: Theme.of(context).textTheme.bodyLarge,
),
backgroundColor: Colors.orangeAccent,
duration: const Duration(seconds: 1),
));
});
}
void _navToDetails(BuildContext context, CardData data) {
Navigator.push(
context,
CupertinoPageRoute(builder: (context) => DetailsPage(data)),
);
}
}