Lab1-2-3

lib/Lr2/Car.dart

@@ -0,0 +1,55 @@
+import 'dart:math';
+
+enum Car{Lada, BMW, Skoda}
+
+extension CarX on Car{
+  static List<Car> generateRandomCar(int n){
+    var rnd = Random();
+    return List.generate(n, (i) => Car.values[rnd.nextInt(Car.values.length)]);
+  }
+}
+
+class NewCar{
+  final String name;
+  double cost;
+
+  NewCar(this.name, this.cost);
+
+  String get info => 'New car: $name, cost: $cost';
+}
+
+class OldCar extends NewCar{
+  final int mileage;
+
+  OldCar(
+      super.name,
+      super.cost, {
+        required this.mileage
+      });
+
+  double costOldCar(cost, mileage){
+    return cost - (mileage * 0.7);
+  }
+  //String info() => 'Old car: $name, cost: $cost, mileage: $mileage';
+}
+
+void main(){
+  asynchronous();
+}
+
+Future<void> asynchronous() async{
+    for (int i = 1; i < 5; i++) {
+      List<Car> car = CarX.generateRandomCar(1);
+      final auto = NewCar('$car', i * 1000000);
+      await Future.delayed(
+        const Duration(milliseconds: 10),
+          () => print(auto.info),
+      );
+      final oldAuto = OldCar('$car', i * 1000000 - (i * 100000 * 0.7), mileage: i * 100000);
+      await Future.delayed(
+        const Duration(milliseconds: 20),
+            () => print(oldAuto.info),
+      );
+      print('');
+  }
+}

lib/main.dart

@@ -15,7 +15,7 @@ class MyApp extends StatelessWidget {
                                                                                                                                 colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
         useMaterial3: true,
       ),
-      home: const MyHomePage(title: 'Юнусов Нияз Наилевич'),
+      home: const MyHomePage(title: 'Тренажёры'),
     );
   }
 }
@@ -28,12 +28,7 @@ class MyHomePage extends StatefulWidget {
 }
 
 class _MyHomePageState extends State<MyHomePage> {
-  int _counter = 0;
+  final Color _color = Colors.orangeAccent;
-  void _incrementCounter() {
-    setState(() {
-      _counter++;
-    });
-  }
 
   @override
   Widget build(BuildContext context) {
@@ -42,24 +37,144 @@ class _MyHomePageState extends State<MyHomePage> {
         backgroundColor: Theme.of(context).colorScheme.inversePrimary,
         title: Text(widget.title),
       ),
-      body: Center(
+      body: const MyWidget(),
-        child: Column(
+    );
-          mainAxisAlignment: MainAxisAlignment.center,
+  }
-          children: <Widget>[
+}
-            const Text(
+
-              'You have pushed the button this many times:',
+class _CardData {
-            ),
+  final String text;
-            Text(
+  final String descriptionText;
-              '$_counter',
+  final IconData icon;
-              style: Theme.of(context).textTheme.headlineMedium,
+  final String? imageUrl;
-            ),
+
-          ],
+  _CardData(
-        ),
+      this.text, {
+        required this.descriptionText,
+        this.icon = Icons.accessibility_new,
+        this.imageUrl,
+      });
+}
+
+class MyWidget extends StatelessWidget {
+  const MyWidget({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    final data = [
+      _CardData(
+        'Силовой',
+        descriptionText: 'Задействуются все группы мышц',
+        imageUrl:
+        'https://sportavsem.ru/image/cache/catalog/multistancii-i-silovye-kompleksy/2/data-public-shop-products-29-20-2029-images-11573-11573-970-1000x1000.gif',
       ),
-      floatingActionButton: FloatingActionButton(
+      _CardData(
-        onPressed: _incrementCounter,
+        'Гребной',
-        tooltip: 'Increment',
+        descriptionText: 'Повышает выносливость',
-        child: const Icon(Icons.add),
+        icon: Icons.directions_bike,
+        imageUrl: 'https://avatars.mds.yandex.net/get-mpic/5303146/img_id2968731285466973579.jpeg/orig'
+      ),
+      _CardData(
+        'Для пресса',
+        descriptionText: 'Качает пресс',
+        icon: Icons.local_atm,
+        imageUrl: 'https://avatars.mds.yandex.net/i?id=ea33ce886c474cb617b94e45ec9cffde350c2a75-6254930-images-thumbs&n=13'
+      ),
+    ];
+    return Center(
+      child: SingleChildScrollView(
+        child: Column(
+            mainAxisAlignment: MainAxisAlignment.center,
+            children: data.map((e) => _Card.fromData(e)).toList(),
+        ),
+      ),
+    );
+  }
+}
+
+class _Card extends StatelessWidget {
+  final String text;
+  final String descriptionText;
+  final IconData icon;
+  final String? imageUrl;
+
+  const _Card(this.text, {
+    this.icon = Icons.ac_unit_outlined,
+    required this.descriptionText,
+    this.imageUrl,
+  });
+
+  factory _Card.fromData(_CardData data) =>
+      _Card(
+        data.text,
+        descriptionText: data.descriptionText,
+        icon: data.icon,
+        imageUrl: data.imageUrl,
+      );
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      margin: const EdgeInsets.all(16),
+      padding: const EdgeInsets.all(16),
+      decoration: BoxDecoration(
+          color: Colors.white,
+          borderRadius: BorderRadius.circular(20),
+          border: Border.all(color: Colors.grey, width: 2),
+          boxShadow: [
+            BoxShadow(
+              color: Colors.grey.withOpacity(.5),
+              spreadRadius: 4,
+              offset: const Offset(0, 5),
+              blurRadius: 8,
+            )
+          ]
+      ),
+      child: Row(
+        mainAxisAlignment: MainAxisAlignment.spaceBetween,
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          ClipRRect(
+            borderRadius: BorderRadius.circular(20),
+            child: SizedBox(
+              height: 140,
+              width: 100,
+              child: Image.network(
+                imageUrl ?? '',
+                fit: BoxFit.cover,
+                errorBuilder: (_, __, ___) => const Placeholder(),
+              ),
+            ),
+          ),
+          Expanded(
+            child: Padding(
+              padding: const EdgeInsets.all(8.0),
+              child: Column(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: [
+                  Text(
+                    text,
+                    style: Theme
+                        .of(context)
+                        .textTheme
+                        .headlineLarge,
+                  ),
+                  Text(
+                    descriptionText,
+                    style: Theme
+                        .of(context)
+                        .textTheme
+                        .bodyLarge,
+                  ),
+                ],
+              ),
+            ),
+          ),
+          Padding(
+            padding: const EdgeInsets.only(left: 8.0),
+            child: Icon(icon),
+          ),
+        ],
       ),
     );
   }