ios - FCM ios 配置

Question

我正在尝试使用 FCM 进行推送通知。我遵循文档并尝试使用:

InstanceID.instanceID().instanceID { (result, error) in
    if let error = error {
        print("Error fetching remote instange ID: \(error)")
    } else if let result = result {
        print("Remote instance ID token: \(result.token)")
        self.instanceIDTokenMessage.text  = "Remote InstanceID token: \(result.token)"
    }
}

如文档中所述，但我不确定应该放在哪里，应该放在 didFinishLaunchingWithOptions 中吗？

我得到这个编译错误:

Static member 'instanceID' cannot be used on instance of type 'InstanceID'

Answer 1

在didFinishLaunchingWithOptions中添加Observer。

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    NotificationCenter.default.addObserver(self, selector: #selector(self.tokenRefreshNotification), name: NSNotification.Name.InstanceIDTokenRefresh, object: nil)
}

在didRegisterForRemoteNotificationsWithDeviceToken中调用

func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
    self.connectToFcm()
}

方法

@objc func tokenRefreshNotification(_ notification: Notification) {
    self.connectToFcm()
}

创建 1 个函数。

func connectToFcm() {
    InstanceID.instanceID().instanceID { (result, error) in
        if let error = error {
            print("Error fetching remote instange ID: \(error)")
        }
        else {
            print("FCM Token = \(String(describing: result?.token))")
            print("Remote instance ID token: \(result.token)")
            self.instanceIDTokenMessage.text  = "Remote InstanceID token: \(result.token)"
        }
    }
}