Lab1-2-3
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lib/Lr2/Car.dart
Normal file
55
lib/Lr2/Car.dart
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@ -0,0 +1,55 @@
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import 'dart:math';
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enum Car{Lada, BMW, Skoda}
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extension CarX on Car{
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static List<Car> generateRandomCar(int n){
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var rnd = Random();
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return List.generate(n, (i) => Car.values[rnd.nextInt(Car.values.length)]);
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}
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}
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class NewCar{
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final String name;
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double cost;
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NewCar(this.name, this.cost);
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String get info => 'New car: $name, cost: $cost';
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}
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class OldCar extends NewCar{
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final int mileage;
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OldCar(
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super.name,
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super.cost, {
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required this.mileage
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});
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double costOldCar(cost, mileage){
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return cost - (mileage * 0.7);
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}
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//String info() => 'Old car: $name, cost: $cost, mileage: $mileage';
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}
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void main(){
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asynchronous();
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}
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Future<void> asynchronous() async{
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for (int i = 1; i < 5; i++) {
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List<Car> car = CarX.generateRandomCar(1);
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final auto = NewCar('$car', i * 1000000);
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await Future.delayed(
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const Duration(milliseconds: 10),
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() => print(auto.info),
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);
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final oldAuto = OldCar('$car', i * 1000000 - (i * 100000 * 0.7), mileage: i * 100000);
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await Future.delayed(
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const Duration(milliseconds: 20),
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() => print(oldAuto.info),
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);
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print('');
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}
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}
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163
lib/main.dart
163
lib/main.dart
@ -15,7 +15,7 @@ class MyApp extends StatelessWidget {
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colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
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useMaterial3: true,
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),
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home: const MyHomePage(title: 'Юнусов Нияз Наилевич'),
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home: const MyHomePage(title: 'Тренажёры'),
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);
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}
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}
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@ -28,12 +28,7 @@ class MyHomePage extends StatefulWidget {
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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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_counter++;
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});
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}
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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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@ -42,24 +37,144 @@ class _MyHomePageState extends State<MyHomePage> {
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backgroundColor: Theme.of(context).colorScheme.inversePrimary,
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title: Text(widget.title),
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),
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body: Center(
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child: Column(
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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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body: const MyWidget(),
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);
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}
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}
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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.accessibility_new,
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this.imageUrl,
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});
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}
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class MyWidget extends StatelessWidget {
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const MyWidget({super.key});
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@override
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Widget build(BuildContext context) {
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final data = [
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_CardData(
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'Силовой',
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descriptionText: 'Задействуются все группы мышц',
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imageUrl:
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'https://sportavsem.ru/image/cache/catalog/multistancii-i-silovye-kompleksy/2/data-public-shop-products-29-20-2029-images-11573-11573-970-1000x1000.gif',
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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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_CardData(
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'Гребной',
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descriptionText: 'Повышает выносливость',
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icon: Icons.directions_bike,
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imageUrl: 'https://avatars.mds.yandex.net/get-mpic/5303146/img_id2968731285466973579.jpeg/orig'
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),
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_CardData(
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'Для пресса',
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descriptionText: 'Качает пресс',
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icon: Icons.local_atm,
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imageUrl: 'https://avatars.mds.yandex.net/i?id=ea33ce886c474cb617b94e45ec9cffde350c2a75-6254930-images-thumbs&n=13'
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),
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];
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return Center(
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child: SingleChildScrollView(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: data.map((e) => _Card.fromData(e)).toList(),
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),
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),
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);
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}
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}
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class _Card extends StatelessWidget {
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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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const _Card(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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});
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factory _Card.fromData(_CardData data) =>
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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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);
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@override
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Widget build(BuildContext context) {
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return Container(
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margin: const EdgeInsets.all(16),
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padding: const EdgeInsets.all(16),
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decoration: BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.circular(20),
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border: Border.all(color: Colors.grey, width: 2),
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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: Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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ClipRRect(
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borderRadius: BorderRadius.circular(20),
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child: SizedBox(
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height: 140,
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width: 100,
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child: Image.network(
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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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),
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Expanded(
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child: Padding(
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padding: const EdgeInsets.all(8.0),
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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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text,
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style: Theme
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.of(context)
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.textTheme
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.headlineLarge,
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),
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Text(
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descriptionText,
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style: Theme
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.of(context)
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.textTheme
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.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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Padding(
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padding: const EdgeInsets.only(left: 8.0),
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child: Icon(icon),
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),
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],
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),
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);
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}
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