出现控制器后，SideMenu不起作用

Question

我已经实现了SSASide Menu控制器，并且在收到任何通知后，当我显示View控制器时，SideMenu无法正常工作。

  

我在AppDelegate类中的代码

func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any],
                 fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
    if let messageID = userInfo[gcmMessageIDKey] {
        print("Message ID: \(messageID)")
    }
    let info = userInfo as NSDictionary
    let aps = info.value(forKey: "aps") as! NSDictionary
    let dic = aps.value(forKey: "alert") as! NSDictionary
    let val = dic.value(forKey: "body") as! String
    let msg_id = userInfo[gcmMessageIDKey]
    let str_screenKey = userInfo[screenKey] as! String
    if str_screenKey == "Send_Invitation"{
    //        UserDefaults.standard.set(val, forKey: "msg_reminder") //setObject
    UserDefaults.standard.set(info, forKey: "msg_reminder") //setObject
    UserDefaults.standard.set(userInfo[gcmMessageIDKey], forKey: "msg_id") //setObject
    UserDefaults.standard.set("yes", forKey: "isMsgAlert") //setObject
    isMsgAlert = true
    if UserDefaults.standard.bool(forKey: islogin) {
        if let controller = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "SSASideMenu") as? SSASideMenu {
            if let window = self.window, let rootViewController = window.rootViewController {
                var currentController = rootViewController
                while let presentedController = currentController.presentedViewController {
                    currentController = presentedController
                }
                currentController.present(controller, animated: true, completion: nil)
            }
        }
    }
    }//If screen check
}

感谢与问候