如何使用Getx读取/检索数组Firestore并在颤动上显示

import 'package:get/get.dart';

class MyController extends GetxController {
  RxList<String> myArray = <String>[].obs;
  
  // 添加数据到数组
  void addItem(String item) {
    myArray.add(item);
  }
  
  // 从数组中删除数据
  void removeItem(String item) {
    myArray.remove(item);
  }
}

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

class MyScreen extends StatelessWidget {
  final MyController myController = Get.put(MyController());

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('My Screen'),
      ),
      body: GetBuilder<MyController>(
        builder: (controller) {
          return ListView.builder(
            itemCount: controller.myArray.length,
            itemBuilder: (context, index) {
              return ListTile(
                title: Text(controller.myArray[index]),
              );
            },
          );
        },
      ),
    );
  }
}

ElevatedButton(
  onPressed: () {
    myController.addItem('New Item');
  },
  child: Text('Add Item'),
),