问将报文从应用程序发送到Swift中的watchOS

EN

WCSession.default.sendMessageData(Data(), replyHandler: { (data) in
            let deviceId = String(data: data, encoding: .utf8)
            print("DEVICE ID : \(deviceId)")
            DataModel.shared.deviceId = deviceId
        }, errorHandler: nil)

   // WATCH OS MESSAGE RECIEVE WITH REPLY HANDLER
    func session(_ session: WCSession, didReceiveMessageData messageData: Data, replyHandler: @escaping (Data) -> Void) {
        print("SESSION MESSSAGE DATA: \(messageData)")
        if let deviceId = UIDevice.current.identifierForVendor?.uuidString,
            let data = deviceId.data(using: .utf8) {
            print("REPLY HANDLER MESSSAGE DATA: \(data)")
            replyHandler(data)
        }
    }