GetView and GetWidget

count_controller.dart

import 'package:get/get.dart';

class CountController extends GetxController
{
  var count=0.obs;
  void increment()
  {
    count++;
  }

}

main.dart

import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:getx_getview/count_controller.dart';

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

//GetView
// ==========
// If we have single controller as a  dependency then we can use GetView
//instead of Statelesswidget and avoid writing Get.find

//GetWidget
// ==========
//It is similar to GetView with one difference it gives the same instance of
//Get.find everytime. It becomes very useful when used in combination with
//Get.create

class MyApp extends GetView<CountController> {

  @override
  Widget build(BuildContext context) {
    Get.put(CountController());
    //Get.create(() => CountController());
    return GetMaterialApp(
      title: 'GetView',
      home: Scaffold(
        appBar: AppBar(
          title: Text('GetView'),
        ),
        body: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            crossAxisAlignment: CrossAxisAlignment.center,
            children: [
              Obx(
                () => Text(
                  'The value is ${controller.count}',
                  style: TextStyle(fontSize: 25),
                ),
              ),
              SizedBox(
                height: 8,
              ),
              RaisedButton(
                child: Text('Increment'),
                onPressed: () {
                  print(controller.hashCode);
                  controller.increment();
                },
              ),
            ],
          ),
        ),
      ),
    );
  }
}