因此，我在尝试为flutter项目实现平台方法通道时遇到了一个问题，当我尝试从flutter调用一个方法到ios端时，它会被触发，一切都正常工作，但当我尝试从ios端（appDelegate文件）调用一个方法到flutter以执行特定任务时，它不工作。
应用委托.swift代码：

@UIApplicationMain
@objc class AppDelegate: FlutterAppDelegate {
    
  override func application(
    _ application: UIApplication,
    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
  ) -> Bool {
    FirebaseApp.configure()
    application.registerForRemoteNotifications()
    GeneratedPluginRegistrant.register(with: self)

    let controller = (window?.rootViewController as! FlutterViewController)
        let methodChannle = FlutterMethodChannel(name: "channelMethodTest", binaryMessenger: controller.binaryMessenger)
        methodChannle.invokeMethod("taskName", arguments: [:])
      
    
    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
  }

Flutter主省道：

const methodChannel = MethodChannel('channelMethodTest');

Future<void> methodHandler(MethodCall call) async {
  final String idea = call.arguments;

  switch (call.method) {
    case "taskName":
      print(
          "receiving task from ios to flutter");
      break;
    default:
      print('no method handler for method ${call.method}');
  }
}

Future<void> main() async {
  WidgetsFlutterBinding.ensureInitialized();
  methodChannel.setMethodCallHandler(methodHandler);
}

我试着搜索如何做这件事的教程，但我找不到