Flutter使用Getx关闭选定的对话框

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

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return GetMaterialApp(
      home: Scaffold(
        appBar: AppBar(title: Text('GetX Dialog Example')),
        body: DialogExample(),
      ),
    );
  }
}

class DialogExample extends StatelessWidget {
  final controller = Get.put(DialogController());

  @override
  Widget build(BuildContext context) {
    return Center(
      child: ElevatedButton(
        onPressed: () => controller.openDialog(),
        child: Text('Open Dialog'),
      ),
    );
  }
}

class DialogController extends GetxController {
  final isOpen = false.obs;

  void openDialog() {
    isOpen.value = true;
    showDialog(
      context: Get.context!,
      builder: (_) => AlertDialog(
        title: Text('Dialog'),
        content: Obx(() => Text(isOpen.value ? 'Close me' : '')),
        actions: [
          TextButton(
            onPressed: () {
              isOpen.value = false;
              Navigator.of(Get.context!).pop();
            },
            child: Text('Close'),
          ),
        ],
      ),
    );
  }
}

void openDialog() {
  isOpen.value = true;
  showDialog(
    context: Get.context!,
    builder: (_) => AlertDialog(
      title: Text('Dialog'),
      content: Obx(() => Text(isOpen.value ? 'Close me' : '')),
      actions: [
        TextButton(
          onPressed: () {
            isOpen.value = false;
            Navigator.of(Get.context!).pop();
          },
          child: Text('Close'),
        ),
      ],
    ),
  ).then((_) {
    if (!isOpen.value) {
      Get.until((route) => Get.currentRoute == '/');
    }
  });
}