Flutter GetX -绑定中的绑定

import 'package:get/get.dart';

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

  void increment() {
    count.value++;
  }
}

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

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

import 'package:get/get.dart';
import 'counter_page.dart';
import 'counter_bindings.dart';

void main() {
  runApp(GetMaterialApp(
    initialRoute: '/counter',
    getPages: [
      GetPage(name: '/counter', page: () => CounterPage(), binding: CounterBindings()),
    ],
  ));
}

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

class CounterPage extends StatelessWidget {
  final CounterController counterController = Get.find();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('Counter')),
      body: Center(
        child: Obx(() => Text('Count: ${counterController.count}')),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: counterController.increment,
        child: Icon(Icons.add),
      ),
    );
  }
}