isRegisteredForRemoteNotifications 返回 true，即使我完全禁用它

如何使用isRegisteredForRemoteNotifications在iOS应用中启用远程通知

swift
import UIKit
import UserNotifications
class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 请求用户授权
        UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .badge, .sound]) { (granted, error) in
            if granted {
                DispatchQueue.main.async {
                    UIApplication.shared.registerForRemoteNotifications()
                }
            }
        }
    }
    
    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)
        
        // 检查是否已注册远程通知
        if UIApplication.shared.isRegisteredForRemoteNotifications {
            print("应用已注册远程通知")
        } else {
            print("应用未注册远程通知")
        }
    }
}