我可以在swift中从后台队列中调用静态方法吗？

Question

我getData()在ServerCommunication类中有一个静态方法可以从后台队列中调用此方法.

//ServerCommunication.swift

import UIKit
import Foundation


class ServerCommunication
{
      class func getData(url: String, sessionId: String) -> ServerResponse {
            //server communication code goes here
      }
}

func populateData() {
     DispatchQueue.global(qos: .background).async {
           let response = ServerCommunication.getData(url: URL, sessionId: "")
     }
}

任何人都可以解释对线程执行有什么影响或者我可能需要将ServerCommunication类定义为Singleton？

从后台队列调用时多次执行getData()静态类

#Edit1更多解释

当我尝试在viewController发生推送通知时打开特定时,会发生此问题.我正在使用一个名为FAPanelController的第三方库,它分别接受一个center,left和right viewController.

代码示例:

@available(iOS 10.0, *)
func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
//Now I want to open a viewController
if let panel = self.window?.rootViewController as? FAPanelController     
{
    let centerNavVC = storyboard.instantiateViewController(withIdentifier: "HomeViewController") as! UINavigationController
        let vc = centerNavVC.topViewController as! HomeViewController
        panel.center(centerNavVC, afterThat: {
            //HomeViewController has a method populateData() in viewWillAppear()
        })
}
}

Answer 1

是的，您可以在后台线程中调用静态方法。

ClassName.performSelector(inBackground: #selector(self.ClassMethod), with: nil)