如何在 iOS swift 中使用 UDP 套接字流式传输音频?

Question

我对这个网络概念真的很陌生，但我必须使用 UDP 套接字流式传输音频文件，搜索了一个星期后，我真的没有得到任何有用的东西。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，但它没有收到任何内容。

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)
}

在侦听器视图控制器中，我已经实现了didReceive委托方法，但它没有接收任何内容。任何人都可以至少在字符串部分帮助我，以便我可以从发送器应用程序发送字符串并可以在接收应用程序中接收？

Answer 1

对于接收数据，您必须编写此方法beginReceptiving((，如果服务器向您发送某些东西，您将通过该方法从服务器获得响应。此方法启动接收过程，每当服务器发送任何内容时，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)
}