AppCenterPush不注册设备并且不接收通知-Swift 4

Question

我正在关注microssoft's step-by-step to use AppCenterPush，但是当尝试插入“ MSPushDelegate.setDelegate（自己）”时，Xcode向我返回以下错误“类型'MSPushDelegate'没有成员'setDelegate'”。 我认为我无法注册设备或接收通知，因为我无法关联MSPushDelegate。

我当前的代码：

import UIKit
import UserNotifications
import AppCenter
import AppCenterAnalytics
import AppCenterCrashes
import AppCenterPush

@UIApplicationMain class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate, MSPushDelegate {

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
    // Clean notifications
    application.applicationIconBadgeNumber = 0
    application.cancelAllLocalNotifications()

    //enable notification (used for local notifications)
    let notificationSettings = UIUserNotificationSettings(types: [.alert, .sound, .badge], categories: nil)
    UIApplication.shared.registerUserNotificationSettings(notificationSettings)
    UIApplication.shared.registerForRemoteNotifications()

    // Notification by AppCenterPush
    MSPush.setDelegate(self) // this line show the error: "Type 'MSPush' has no member 'setDelegate'"
    MSAppCenter.setEnabled(true)
    MSAppCenter.start("{MyAppSecret}", withServices: [
        MSAnalytics.self,
        MSCrashes.self,
        MSPush.self
        ])
    return true
}

显示通知的代码：

func push(_ push: MSPush!, didReceive pushNotification: MSPushNotification!) {
    print("Working")
    let title: String = pushNotification.title ?? ""
    var message: String = pushNotification.message ?? ""
    var customData: String = ""
    for item in pushNotification.customData {
        customData =  ((customData.isEmpty) ? "" : "\(customData), ") + "\(item.key): \(item.value)"
    }
    if (UIApplication.shared.applicationState == .background) {
        NSLog("Notification received in background, title: \"\(title)\", message: \"\(message)\", custom data: \"\(customData)\"");
    } else {
        message =  message + ((customData.isEmpty) ? "" : "\n\(customData)")

        let alertController = UIAlertController(title: title, message: message, preferredStyle: .alert)
        alertController.addAction(UIAlertAction(title: "OK", style: .cancel))

        // Show the alert controller.
        self.window?.rootViewController?.present(alertController, animated: true)
    }
}