如何使用XMPP Framework发送消息

import XMPPFramework

// 创建XMPPStream对象
let xmppStream = XMPPStream()

// 设置XMPPStream的代理
xmppStream.addDelegate(self, delegateQueue: DispatchQueue.main)

// 连接到XMPP服务器
func connectToXMPPServer() {
    let jid = XMPPJID(string: "username@xmppserver.com")
    xmppStream.myJID = jid
    xmppStream.hostName = "xmppserver.com"
    xmppStream.hostPort = 5222
    
    do {
        try xmppStream.connect(withTimeout: XMPPStreamTimeoutNone)
    } catch {
        print("连接失败：\(error)")
    }
}

// 连接成功后调用该方法
func xmppStreamDidConnect(_ sender: XMPPStream!) {
    do {
        try xmppStream.authenticate(withPassword: "password")
    } catch {
        print("身份验证失败：\(error)")
    }
}

// 身份验证成功后调用该方法
func xmppStreamDidAuthenticate(_ sender: XMPPStream!) {
    let message = XMPPMessage(type: "chat", to: XMPPJID(string: "receiver@xmppserver.com"))
    message.addBody("Hello, World!")
    
    xmppStream.send(message)
}