注册远程通知ios10并捕获apn令牌

if #available(iOS 10.0, *) {
    let center = UNUserNotificationCenter.current()
    center.requestAuthorization(options: [.alert, .badge, .sound]) { (granted, error) in
        if granted {
            DispatchQueue.main.async {
                UIApplication.shared.registerForRemoteNotifications()
            }
        }
    }
} else {
    let settings = UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)
    UIApplication.shared.registerUserNotificationSettings(settings)
    UIApplication.shared.registerForRemoteNotifications()
}

func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
    let token = deviceToken.map { String(format: "%02.2hhx", $0) }.joined()
    print("APN令牌：\(token)")
    // 在这里可以将APN令牌发送到服务器，用于后续的推送通知
}

func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
    print("注册远程通知失败：\(error.localizedDescription)")
}