lab-4
This commit is contained in:
parent
426b593788
commit
71b843976f
15
lib/domain/models/card.dart
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15
lib/domain/models/card.dart
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@ -0,0 +1,15 @@
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import 'package:flutter/material.dart';
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class CardData {
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final String text;
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final String descriptionText;
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final IconData icon;
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final String? imageUrl;
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CardData(
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this.text, {
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required this.descriptionText,
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this.icon = Icons.ac_unit_outlined,
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this.imageUrl,
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});
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}
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108
lib/main.dart
108
lib/main.dart
@ -1,5 +1,5 @@
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import 'package:flutter/material.dart';
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import 'package:flutter/material.dart';
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import 'package:leonteva_pmu/presentation/home_page/home_page.dart';
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void main() {
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void main() {
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runApp(const MyApp());
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runApp(const MyApp());
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}
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}
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@ -7,119 +7,15 @@ void main() {
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class MyApp extends StatelessWidget {
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class MyApp extends StatelessWidget {
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const MyApp({super.key});
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const MyApp({super.key});
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// This widget is the root of your application.
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@override
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@override
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Widget build(BuildContext context) {
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Widget build(BuildContext context) {
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return MaterialApp(
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return MaterialApp(
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title: 'Flutter Demo',
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title: 'Flutter Demo',
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theme: ThemeData(
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theme: ThemeData(
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// This is the theme of your application.
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//
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// TRY THIS: Try running your application with "flutter run". You'll see
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// the application has a purple toolbar. Then, without quitting the app,
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// try changing the seedColor in the colorScheme below to Colors.green
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// and then invoke "hot reload" (save your changes or press the "hot
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// reload" button in a Flutter-supported IDE, or press "r" if you used
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// the command line to start the app).
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//
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// Notice that the counter didn't reset back to zero; the application
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// state is not lost during the reload. To reset the state, use hot
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// restart instead.
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//
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// This works for code too, not just values: Most code changes can be
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// tested with just a hot reload.
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colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
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colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
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useMaterial3: true,
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useMaterial3: true,
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),
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),
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home: const MyHomePage(title: 'Leonteva_V.A._ PIbd-33'),
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home: const HomePage(title: 'The coolest hamsters on earth ^^'),
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);
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}
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}
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class MyHomePage extends StatefulWidget {
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const MyHomePage({super.key, required this.title});
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// This widget is the home page of your application. It is stateful, meaning
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// that it has a State object (defined below) that contains fields that affect
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// how it looks.
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// This class is the configuration for the state. It holds the values (in this
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// case the title) provided by the parent (in this case the App widget) and
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// used by the build method of the State. Fields in a Widget subclass are
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// always marked "final".
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final String title;
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@override
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State<MyHomePage> createState() => _MyHomePageState();
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}
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class _MyHomePageState extends State<MyHomePage> {
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int _counter = 0;
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void _incrementCounter() {
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setState(() {
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// This call to setState tells the Flutter framework that something has
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// changed in this State, which causes it to rerun the build method below
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// so that the display can reflect the updated values. If we changed
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// _counter without calling setState(), then the build method would not be
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// called again, and so nothing would appear to happen.
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_counter++;
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});
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}
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@override
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Widget build(BuildContext context) {
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// This method is rerun every time setState is called, for instance as done
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// by the _incrementCounter method above.
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//
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// The Flutter framework has been optimized to make rerunning build methods
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// fast, so that you can just rebuild anything that needs updating rather
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// than having to individually change instances of widgets.
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return Scaffold(
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appBar: AppBar(
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// TRY THIS: Try changing the color here to a specific color (to
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// Colors.amber, perhaps?) and trigger a hot reload to see the AppBar
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// change color while the other colors stay the same.
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backgroundColor: Theme.of(context).colorScheme.inversePrimary,
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// Here we take the value from the MyHomePage object that was created by
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// the App.build method, and use it to set our appbar title.
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title: Text(widget.title),
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),
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body: Center(
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// Center is a layout widget. It takes a single child and positions it
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// in the middle of the parent.
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child: Column(
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// Column is also a layout widget. It takes a list of children and
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// arranges them vertically. By default, it sizes itself to fit its
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// children horizontally, and tries to be as tall as its parent.
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//
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// Column has various properties to control how it sizes itself and
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// how it positions its children. Here we use mainAxisAlignment to
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// center the children vertically; the main axis here is the vertical
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// axis because Columns are vertical (the cross axis would be
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// horizontal).
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//
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// TRY THIS: Invoke "debug painting" (choose the "Toggle Debug Paint"
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// action in the IDE, or press "p" in the console), to see the
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// wireframe for each widget.
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mainAxisAlignment: MainAxisAlignment.center,
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children: <Widget>[
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const Text(
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'You have pushed the button this many times:',
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),
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Text(
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'$_counter',
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style: Theme.of(context).textTheme.headlineMedium,
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),
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],
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),
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),
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floatingActionButton: FloatingActionButton(
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onPressed: _incrementCounter,
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tooltip: 'Increment',
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child: const Icon(Icons.add),
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), // This trailing comma makes auto-formatting nicer for build methods.
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);
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);
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}
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}
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}
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}
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37
lib/presentation/details_page/details_page.dart
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37
lib/presentation/details_page/details_page.dart
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import 'package:flutter/material.dart';
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import 'package:leonteva_pmu/domain/models/card.dart';
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class DetailsPage extends StatelessWidget {
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final CardData data;
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const DetailsPage(this.data, {super.key});
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(),
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body: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Padding(
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padding: const EdgeInsets.only(bottom: 16.0),
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child: Image.network(
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data.imageUrl ?? '',
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),
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),
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Padding(
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padding: const EdgeInsets.only(bottom: 4.0),
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child: Text(
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data.text,
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style: Theme.of(context).textTheme.headlineLarge,
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),
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),
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Text(
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data.descriptionText,
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style: Theme.of(context).textTheme.bodyLarge,
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)
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],
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),
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);
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}
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}
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159
lib/presentation/home_page/card.dart
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159
lib/presentation/home_page/card.dart
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part of 'home_page.dart';
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typedef OnLikeCallback = void Function(String title, bool isLiked)?;
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class _Card extends StatefulWidget {
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final String text;
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final String descriptionText;
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final IconData icon;
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final String? imageUrl;
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final OnLikeCallback onLike;
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final VoidCallback? onTap;
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const _Card(
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this.text, {
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this.icon = Icons.ac_unit_outlined,
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required this.descriptionText,
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this.imageUrl,
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this.onLike,
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this.onTap,
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});
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factory _Card.fromData(
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CardData data, {
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OnLikeCallback onLike,
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VoidCallback? onTap,
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}) =>
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_Card(
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data.text,
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descriptionText: data.descriptionText,
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icon: data.icon,
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imageUrl: data.imageUrl,
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onLike: onLike,
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onTap: onTap,
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);
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@override
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State<_Card> createState() => _CardState();
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}
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class _CardState extends State<_Card> {
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bool isLiked = false;
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@override
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Widget build(BuildContext context) {
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return GestureDetector(
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onTap: widget.onTap,
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child: Container(
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margin: const EdgeInsets.all(16),
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constraints: const BoxConstraints(minHeight: 140),
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decoration: BoxDecoration(
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color: Colors.white70,
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borderRadius: BorderRadius.circular(20),
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boxShadow: [
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BoxShadow(
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color: Colors.grey.withOpacity(.5),
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spreadRadius: 4,
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offset: const Offset(0, 5),
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blurRadius: 8,
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),
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],
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),
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child: IntrinsicHeight(
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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ClipRRect(
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borderRadius: const BorderRadius.only(
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bottomLeft: Radius.circular(20),
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topLeft: Radius.circular(20),
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),
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child: SizedBox(
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height: double.infinity,
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width: 120,
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child: Stack(
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children: [
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Positioned.fill(
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child: Image.network(
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widget.imageUrl ?? '',
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fit: BoxFit.cover,
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errorBuilder: (_, __, ___) => const Placeholder(),
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),
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),
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Align(
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alignment: Alignment.bottomLeft,
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child: Container(
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decoration: const BoxDecoration(
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color: Colors.orangeAccent,
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borderRadius: BorderRadius.only(
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topRight: Radius.circular(20),
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//
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)),
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padding: const EdgeInsets.fromLTRB(8, 2, 8, 2),
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child: Text(
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'скидок нет',
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style: Theme.of(context)
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.textTheme
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.bodyMedium
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?.copyWith(color: Colors.black),
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),
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),
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),
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],
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),
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),
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),
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Expanded(
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child: Padding(
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padding: const EdgeInsets.only(left: 16.0),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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widget.text,
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style: Theme.of(context).textTheme.headlineLarge,
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),
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Text(
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widget.descriptionText,
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style: Theme.of(context).textTheme.bodyLarge,
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)
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],
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),
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),
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),
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Align(
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alignment: Alignment.bottomRight,
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child: Padding(
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padding: const EdgeInsets.only(
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left: 8.0,
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right: 16,
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bottom: 16,
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),
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child: GestureDetector(
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onTap: () {
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setState(() => isLiked = !isLiked);
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widget.onLike?.call(widget.text, isLiked);
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},
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child: AnimatedSwitcher(
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duration: const Duration(microseconds: 200),
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child: isLiked
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? const Icon(
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Icons.favorite,
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color: Colors.redAccent,
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key: ValueKey<int>(0),
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)
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: const Icon(
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Icons.favorite_border,
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key: ValueKey<int>(1),
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),
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),
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),
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),
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)
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],
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),
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),
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),
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);
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}
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}
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91
lib/presentation/home_page/home_page.dart
Normal file
91
lib/presentation/home_page/home_page.dart
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import 'package:flutter/material.dart';
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import 'package:leonteva_pmu/presentation/details_page/details_page.dart';
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import 'package:flutter/cupertino.dart';
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import 'package:leonteva_pmu/domain/models/card.dart';
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part 'card.dart';
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class HomePage extends StatefulWidget {
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const HomePage({super.key, required this.title});
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final String title;
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@override
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State<HomePage> createState() => _HomePageState();
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}
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class _HomePageState extends State<HomePage> {
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final Color _color = Colors.orangeAccent;
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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backgroundColor: _color,
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title: Text(widget.title),
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),
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body: const Body(),
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);
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}
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}
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class Body extends StatelessWidget {
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const Body({super.key}); // ключи
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@override
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Widget build(BuildContext context) {
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final data = [
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CardData('mouse',
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descriptionText: 'hahaha',
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icon: Icons.abc,
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imageUrl:
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'https://sun9-26.userapi.com/impg/sB_tLPWPCIqxQWmlbcmlRYiw1ibFb70_QMtNwg/56qpyc_C8Go.jpg?size=736x711&quality=95&sign=8f7163b54538a2e7bad5f36a857485d4&type=album'),
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CardData('mouse2',
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descriptionText: 'ahahaha',
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icon: Icons.access_alarm_outlined,
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imageUrl:
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'https://sun165-1.userapi.com/impg/EVLbaLilqr8xw5tsqZLQQb6DSYrdKo7Q9sYSsw/H4FRwyMR6Ec.jpg?size=1280x960&quality=96&sign=f606e4ae3d1ccd27917cd1ffa6d91e58&type=album'),
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CardData('mouse3',
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descriptionText: 'eeee',
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|
icon: Icons.access_alarm_rounded,
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imageUrl:
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'https://sun34-1.userapi.com/impg/_DLT-op0LbBdgh5h-ILvC7IMDY5kbLR349v7vA/tX7vtk6mNlA.jpg?size=736x736&quality=96&sign=47f2b0f63bf249c62f4498fb637695d5&type=album'),
|
||||||
|
];
|
||||||
|
|
||||||
|
return Center(
|
||||||
|
child: SingleChildScrollView(
|
||||||
|
child: Column(
|
||||||
|
mainAxisAlignment: MainAxisAlignment.center,
|
||||||
|
children: data.map((data) {
|
||||||
|
return _Card.fromData(
|
||||||
|
data,
|
||||||
|
onLike: (String title, bool isLiked) =>
|
||||||
|
_showSnackBar(context, title, isLiked),
|
||||||
|
onTap: () => _navToDetails(context, data),
|
||||||
|
);
|
||||||
|
}).toList(),
|
||||||
|
),
|
||||||
|
),
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
void _navToDetails(BuildContext context, CardData data) {
|
||||||
|
Navigator.push(
|
||||||
|
context,
|
||||||
|
CupertinoPageRoute(builder: (context) => DetailsPage(data)),
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
void _showSnackBar(BuildContext context, String title, bool isLiked) {
|
||||||
|
WidgetsBinding.instance.addPostFrameCallback((_) {
|
||||||
|
ScaffoldMessenger.of(context).showSnackBar(SnackBar(
|
||||||
|
content: Text(
|
||||||
|
'Cute hamster $title ${isLiked ? 'liked!' : 'disliked :('}',
|
||||||
|
style: Theme.of(context).textTheme.bodyLarge,
|
||||||
|
),
|
||||||
|
backgroundColor: Colors.orangeAccent,
|
||||||
|
duration: const Duration(seconds: 1),
|
||||||
|
));
|
||||||
|
});
|
||||||
|
}
|
||||||
|
}
|
Loading…
x
Reference in New Issue
Block a user