GetX Package in Flutter

GetX is an extra-light and powerful solution for Flutter. It combines high-performance state management, intelligent dependency injection, and route management quickly and practically

Installing

dependencies:
  get: ^4.1.4

However, most times to achieve things like navigating to screens, state management, and show alerts, a lot of boilerplates are needed

Let’s say you want to navigate to a screen called SecondScreen. you will have to write:

Navigator.push(
    context,
    MaterialPageRoute(builder: (context) => SecondScreen()),
  );

but in GetX Package :

Get.to(SecondScreen());

When you need to navigate back to the previous page in Flutter you will have to write

Navigator.pop(context);

but in GetX like this :

Get.back();

GetxController

import 'package:get/get.dart';

class MyHomePageController extends GetxController {
  final count = 0.obs;

  increment() => count.value++;

}

class MyHomePage extends StatelessWidget {
  final String title;
  final MyHomePageController controller =  Get.put(MyHomePageController());

  MyHomePage({this.title});
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Text(
              'You have pushed the button this many times:',
            ),
            Obx(
                  () => Text(
                '${controller.count.value}',
                style: Theme.of(context).textTheme.headline4,
              ),
            )
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: controller.increment,
        tooltip: 'Increment',
        child: Icon(Icons.add),
      ),
    );
  }
}

Snackbar

Get.snackbar('GetX Snackbar', 'Yay! Awesome GetX Snackbar');

Conclusion

GetX was created to improve the productivity of Flutter developers as they build out features. Instead of having to search for boilerplate needed to do things like state management, navigation management, and more, GetX provides a simple intuitive API to achieve these activities without sacrificing performance

If you find more detail click here : https://pub.dev/packages/get