使用未声明的类型 UNAuthorizationOptions

问题描述

我正在尝试使用 Firebase 来处理推送通知.我已经安装了 Firebase pod(Firebase/Core"和FirebaseMessaging"pod).

I am trying to use Firebase to handle push notifications. I have installed Firebase pod ('Firebase/Core' and 'FirebaseMessaging' pods).

在我将 Firebase 导入项目之后

And after I imported Firebase to the project

import Firebase

我已经像这样配置了 Firebase 应用(代码是从官方文档中复制的):

I have configured the Firebase app like this( code is copied from official docs ):

  func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?)
-> Bool {FIRApp.configure() }

之后我尝试使用此代码(代码是从官方文档中复制的):

After that I've tried to use this code ( code is copied from official docs ):

if #available(iOS 10.0, *) {
            let authOptions : UNAuthorizationOptions = [.alert, .badge, .sound]
            UNUserNotificationCenter.current().requestAuthorization(
                options: authOptions,
                completionHandler: {_,_ in })

            // For iOS 10 display notification (sent via APNS)
            UNUserNotificationCenter.current().delegate = self
            // For iOS 10 data message (sent via FCM)
            FIRMessaging.messaging().remoteMessageDelegate = self

        } else {
            let settings: UIUserNotificationSettings =
                UIUserNotificationSettings(forTypes: [.Alert, .Badge, .Sound], categories: nil)
            application.registerUserNotificationSettings(settings)
        }

        application.registerForRemoteNotifications()

但是我从标题中得到了错误:

But I got the error from the title which says:

使用未声明的类型 UNAuthorizationOptions

我也有与 UNUserNotificationCenter 类相关的相同错误.

also I am having the same error related to the UNUserNotificationCenter class.

我使用的是 Swift 2.2 和 Xcode 7.3.1

I am using Swift 2.2 and Xcode 7.3.1

这个错误的原因是什么?

What is the cause of this error?

推荐答案

UserNotifications.framework 可从 iOS 10 获得，您使用 Xcode 7.3 意味着使用 iOS 9 及更低版本，因此没有需要你添加if #available(iOS 10.0, *) {，直接只写else部分并注册远程通知.

UserNotifications.framework is available from iOS 10 and you are working with Xcode 7.3 means with iOS 9 and lower, So there is no need for you to add that if #available(iOS 10.0, *) {, write only else part directly and register remote notifications.

let settings: UIUserNotificationSettings = UIUserNotificationSettings(forTypes: [.Alert, .Badge, .Sound], categories: nil)
application.registerUserNotificationSettings(settings)
application.registerForRemoteNotifications()

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