Question

对于这个网络概念我真的很陌生，但是我必须使用UDP套接字流式传输音频文件，并且搜索了一周之后，我并没有真正有用的东西。我使用了CocoaAsyncSocket，并尝试将字符串从发送方应用程序发送到接收方应用程序，但它什么也没收到。

import Foundation
import CocoaAsyncSocket

class OutSocket : NSObject, GCDAsyncUdpSocketDelegate {

var hostIP : String = "255.255.255.255"
var port : UInt16 = 50008
var socket : GCDAsyncUdpSocket!

override init() {
    super.init()

    setUpConnection()
}

func setUpConnection() {
    socket = GCDAsyncUdpSocket(delegate: self, delegateQueue: DispatchQueue.main)
    do {
        try socket.connect(toHost: hostIP, onPort: port)
    } catch let err{
        print("Error Connecting, ", err)
    }
}

func sendData(message : String) {
    guard let data = message.data(using: .utf8) else { return }
    let str = String(data: data, encoding: .utf8)
    print(str!)
    socket.send(data, withTimeout: 1000, tag: 0)
}

func udpSocket(_ sock: GCDAsyncUdpSocket, didConnectToAddress address: Data) {
    print("didConnectToAddress")
}

func udpSocket(_ sock: GCDAsyncUdpSocket, didNotConnect error: Error?) {
    print("didNotConnect \(String(describing: error))")
}

func udpSocket(_ sock: GCDAsyncUdpSocket, didSendDataWithTag tag: Int) {
    print("didSendDataWithTag")
}

func udpSocket(_ sock: GCDAsyncUdpSocket, didNotSendDataWithTag tag: Int, dueToError error: Error?) {
    print("didNotSendDataWithTag")
    print(error!)
}
}
import Foundation
import CocoaAsyncSocket
class InSocket: NSObject, GCDAsyncUdpSocketDelegate {

var hostIP : String = "255.255.255.255"
var port : UInt16 = 50008
var socket : GCDAsyncUdpSocket!

override init() {
    super.init()

    setUpConnection()
}

func setUpConnection() {
    socket = GCDAsyncUdpSocket(delegate: self, delegateQueue: DispatchQueue.main)

    do {
        try socket.connect(toHost: hostIP, onPort: port)
        try socket.bind(toPort: port)
        try socket.enableBroadcast(true)
        try socket.enableReusePort(true)
        try socket.beginReceiving()
    } catch let err {
        print(err)
    }

    send(message: "Received")
}

func send(message:String){
    guard let data = message.data(using: .utf8) else { return }
    socket.send(data, withTimeout: 2, tag: 0)
}

并且在Listener View控制器中，我实现了didReceive委托方法，但未接收任何东西。有人可以至少在字符串部分帮助我，以便我可以从发送方应用发送字符串并可以在接收方应用中接收吗？

Answer 1

要接收数据，您必须编写此方法beginReceiving（），如果服务器向您发送了某些信息，您将从该方法获取服务器的响应。此方法开始接收过程，通过该过程，只要服务器发送任何东西，您都将在GCDAsyncUdpSocket的didReceiveData委托中接收数据。

  let socket = GCDAsyncUdpSocket(delegate: self, delegateQueue: DispatchQueue.main)
        do {
            try socket.connect(toHost: hostIP, onPort: port)
            try socket.beginReceiving()
        } catch let err{
            print("Error Connecting, ", err)
        }

如何在iOS Swift中使用UDP套接字流式传输音频？

1 个答案: