dependencies:  
  get: ^4.6.5  

Run flutter pub get to download the package.

Step 3: Create a Controller

Controllers manage the app’s logic and state.

import 'package:get/get.dart';  

class CounterController extends GetxController {  
  var count = 0.obs;  

  void increment() {  
    count++;  
  }  
}  

Step 4: Bind the Controller

Use bindings to initialize controllers automatically when a screen is accessed.

import 'package:get/get.dart';  
import 'controllers/counter_controller.dart';  

class CounterBinding extends Bindings {  
  @override  
  void dependencies() {  
    Get.lazyPut<CounterController>(() => CounterController());  
  }  
}  

Step 5: Build the UI

Use Obx widgets to update the UI whenever the state changes.

import 'package:flutter/material.dart';  
import 'package:get/get.dart';  
import 'controllers/counter_controller.dart';  

class CounterView extends StatelessWidget {  
  @override  
  Widget build(BuildContext context) {  
    final CounterController controller = Get.find();  

    return Scaffold(  
      appBar: AppBar(title: Text('GetX Counter')),  
      body: Center(  
        child: Obx(() => Text(  
              'Count: ${controller.count}',  
              style: TextStyle(fontSize: 24),  
            )),  
      ),  
      floatingActionButton: FloatingActionButton(  
        onPressed: controller.increment,  
        child: Icon(Icons.add),  
      ),  
    );  
  }  
}  

Step 6: Set Up Navigation

Define routes for easy navigation.

import 'package:get/get.dart';  
import 'bindings/counter_binding.dart';  
import 'views/counter_view.dart';  

class AppRoutes {  
  static final routes = [  
    GetPage(  
      name: '/counter',  
      page: () => CounterView(),  
      binding: CounterBinding(),  
    ),  
  ];  
}  

Step 7: Start the App

Initialize your app with GetX.

import 'package:flutter/material.dart';  
import 'package:get/get.dart';  
import 'routes/app_routes.dart';  

void main() {  
  runApp(GetMaterialApp(  
    initialRoute: '/counter',  
    getPages: AppRoutes.routes,  
  ));  
}  

Why This Setup Works