接收UDP消息

Question

我在特定端口上接收消息時遇到問題。發送工作正常。

的代碼看起來像這樣：

import Foundation 
import CocoaAsyncSocket 


class InSocket: NSObject, GCDAsyncUdpSocketDelegate { 

//let IP = "192.168.1.196" 
let PORT:UInt16 = 14000 
var isocket:GCDAsyncUdpSocket! 

override init(){ 
    super.init() 
    setupConnection() 
} 

func setupConnection(){ 

    isocket = GCDAsyncUdpSocket(delegate: self, delegateQueue: DispatchQueue.main) 
    do{ 
     try isocket.bind(toPort:PORT) 
     try isocket.beginReceiving() 
     } catch {print("ErrorReceive")} 
} 


func udpSocket(sock: GCDAsyncUdpSocket!, didReceiveData data: NSData, fromAddress address: NSData!, withFilterContext filterContext: AnyObject!) { 
    let str = NSString(data: data as Data, encoding: String.Encoding.ascii.rawValue) 
    print(str) 

} 
} 

我網的統計數據看到，應用程序接收數據包： Packets

但我沒有看到一個控制檯東西。 有些想法？

Answer 1

添加委託函數之前：FUNC udpSocket（....）該屬性

@objc（udpSocket：didReceiveData：FROMADDRESS：withFilterContext :)

的XCode 8將發出警告，但不支付注意，UDP數據包將到達。