4US⌚️Tech

   class MyStatelessWidget extends StatelessWidget {
     @override
     Widget build(BuildContext context) {
       return Text('Hello, World!');
     }
   }
   

   class MyStatefulWidget extends StatefulWidget {
     @override
     _MyStatefulWidgetState createState() => _MyStatefulWidgetState();
   }

   class _MyStatefulWidgetState extends State<MyStatefulWidget> {
     int _counter = 0;

     void _incrementCounter() {
       setState(() {
         _counter++;
       });
     }

     @override
     Widget build(BuildContext context) {
       return Column(
         children: <Widget>[
           Text('Counter: $_counter'),
           ElevatedButton(
             onPressed: _incrementCounter,
             child: Text('Increment'),
           ),
         ],
       );
     }
   }
   

import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('أضف معرض أعمالك'),
        ),
        body: AddPortfolioScreen(),
        bottomNavigationBar: BottomNavigationBar(
          items: [
            BottomNavigationBarItem(
              icon: Icon(Icons.menu),
              label: 'القائمة',
            ),
            BottomNavigationBarItem(
              icon: Icon(Icons.search),
              label: 'بحث',
            ),
            BottomNavigationBarItem(
              icon: Icon(Icons.person),
              label: 'حسابي',
            ),
            BottomNavigationBarItem(
              icon: Icon(Icons.home),
              label: 'الرئيسية',
            ),
          ],
        ),
      ),
    );
  }
}

class AddPortfolioScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Padding(
      padding: const EdgeInsets.all(16.0),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Text(
            'أضف أفضل 3 أعمال حديثة تظهر بها خبرتك في مجال عملك.',
            style: TextStyle(fontSize: 16),
          ),
          SizedBox(height: 16),
          PortfolioItem('العمل 1 من 3'),
          PortfolioItem('العمل 2 من 3'),
          PortfolioItem('العمل 3 من 3'),
          SizedBox(height: 16),
          Text(
            'تأكيد الشروط',
            style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
          ),
          CheckboxListTile(
            title: Text('جميع الأعمال من تنفيذي ولدي الصلاحية لنشرها'),
            value: false,
            onChanged: (bool? value) {},
          ),
          CheckboxListTile(
            title: Text('أعلم أنه سيتم إيقاف حسابي إن استخدمت أعمال تنتهك حقوق الآخرين'),
            value: false,
            onChanged: (bool? value) {},
          ),
          SizedBox(height: 16),
          ElevatedButton(
            onPressed: () {},
            child: Text('التالي'),
          ),
        ],
      ),
    );
  }
}

class PortfolioItem extends StatefulWidget {
  final String title;
  PortfolioItem(this.title);

  @override
  _PortfolioItemState createState() => _PortfolioItemState();
}

class _PortfolioItemState extends State<PortfolioItem> {
  @override
  Widget build(BuildContext context) {
    return ExpansionTile(
      title: Row(
        children: [
          Icon(Icons.keyboard_arrow_up),
          SizedBox(width: 8),
          Text(widget.title),
          Spacer(),
          Icon(Icons.check_circle, color: Colors.green),
        ],
      ),
      children: [
        Padding(
          padding: const EdgeInsets.all(8.0),
          child: Column(
            children: [
              TextField(
                decoration: InputDecoration(
                  labelText: 'الاسم',
                  border: OutlineInputBorder(),
                ),
              ),
              SizedBox(height: 8),
              TextField(
                decoration: InputDecoration(
                  labelText: 'النوع',
                  border: OutlineInputBorder(),
                ),
              ),
            ],
          ),
        ),
      ],
    );
  }
}

   GET /users
   

   GET /users/{id}
   

   POST /users
   

   PUT /users/{id}
   

   PATCH /users/{id}
   

   DELETE /users/{id}
   

import 'package:flutter/material.dart';
import 'package:overlay_support/overlay_support.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return OverlaySupport.global(
      child: MaterialApp(
        home: MyHomePage(),
      ),
    );
  }
}

class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addPostFrameCallback((_) => showNotification(context));
  }

  void showNotification(BuildContext context) {
    showSimpleNotification(
      Text("This is a floating notification"),
      background: Colors.blue,
      autoDismiss: true,
      trailing: IconButton(
        icon: Icon(Icons.close, color: Colors.white),
        onPressed: () {
          OverlaySupportEntry.of(context)?.dismiss();
        },
      ),
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Floating Notification Demo"),
      ),
      body: Center(
        child: Text("Welcome to the app!"),
      ),
    );
  }
}

**صيغة المنشئ مع المعلمات:**

**مثال على المنشئ مع المعلمات:**

**منشئ مع المعلمات المسماة في دارت:**

**منشئ مع المعلمات الافتراضية في دارت:**

**المنشئ المسمي في دارت:**

class ClassName {
  // خصائص
  int property;

  // منشئ
  ClassName(this.property);

  // طرق
  void method() {
    // تنفيذ الطريقة
  }
}

class Person {
  String name;
  int age;

  Person(this.name, this.age);

  void displayInfo() {
    print('Name: $name, Age: $age');
  }
}

void main() {
  Person person = Person('Ali', 30);
  person.displayInfo();
}

class Area {
  double length;
  double width;

  Area(this.length, this.width);

  double calculateArea() {
    return length * width;
  }
}

void main() {
  Area rectangle = Area(5.0, 3.0);
  print('Area: ${rectangle.calculateArea()}');
}

ClassName objectName = ClassName();

class Camera {
  String name;
  String color;
  int megapixel;

  Camera(this.name, this.color, this.megapixel);

  void display() {
    print('Name: $name, Color: $color, Megapixel: $megapixel');
  }
}

void main() {
  Camera camera1 = Camera('Nikon', 'Black', 24);
  Camera camera2 = Camera('Canon', 'Red', 30);

  camera1.display();
  camera2.display();
}

Person person = Person('Ali', 30);
person.name = 'Ahmed';
person.age = 25;

class ClassName {
  ClassName() {
    // الكود الخاص بالتهيئة
  }
}

class ClassName {
  String name;

  ClassName(this.name);
}

class ClassName {
  String name;
  int age;

  ClassName(this.name, [this.age = 0]);
}

class ClassName {
  String name;
  int age;

  ClassName({required this.name, this.age = 0});
}

class ClassName {
  String name;
  int age;

  ClassName(this.name, {this.age = 18});
}

class ClassName {
  ClassName() {
    // تهيئة القيم الافتراضية
  }
}