import UIKitclass WSBUserinfo: NSObject {// 登录的用户名密码var  userName : String?   var  userPasswd : String?// 注册的用户名密码var  userRegisterName : String?var  userRegisterPasswd : String?// 为了区分登录和注册 var  isLogin : Bool?// 单例class func getShareInstance() -> WSBUserinfo{struct Singleton {static var  dispatchOne : dispatch_once_t = 0static var  instance : WSBUserinfo? = nil}dispatch_once(&Singleton.dispatchOne) { () -> Void inSingleton.instance = WSBUserinfo()}return Singleton.instance!}}

import UIKitclass WSBLoginViewController: UIViewController,WSBXMPPLoginDelegate {@IBOutlet weak var userNameField: UITextField!@IBOutlet weak var userPasswdField: UITextField!@IBAction func loginBtnClick(sender: AnyObject) {WSBUserinfo.getShareInstance().isLogin = trueprint("用户名:\(userNameField.text!)")dprint("密码是:\(userPasswdField.text!)")// 把用户名 密码存入工具类 WSBUserinfo 这个单例对象中WSBUserinfo.getShareInstance().userName = userNameField.text!WSBUserinfo.getShareInstance().userPasswd = userPasswdField.text!// 调用XMPP 工具类 完成登录// 登录之前先给WSBXMPPTool设置代理WSBXMPPTool.getSharedInstance().loginDelegate = selfWSBXMPPTool.getSharedInstance().userLogin()}/** 登录协议中的方法 */func loginSuccess() {print("登录成功")// 切换到主界面let  storyBoard  = UIStoryboard.init(name: "Main", bundle: nil)UIApplication.sharedApplication().keyWindow?.rootViewController =storyBoard.instantiateInitialViewController()}func loginFailed() {print("登录失败")}func loginNetError() {print("登录时网络错误")}override func viewDidLoad() {super.viewDidLoad()}deinit{print("deinit\(self)")}}RegisterViewController:import UIKitclass WSBRegisterViewController: UIViewController,WSBXMPPRegisterDelegate {@IBOutlet weak var userRegiserName: UITextField!@IBOutlet weak var userRegisterPasswd: UITextField!@IBAction func registerBtnClick(sender: AnyObject) {// 说明这是注册行为WSBUserinfo.getShareInstance().isLogin = falseWSBUserinfo.getShareInstance().userRegisterName = self.userRegiserName.text!WSBUserinfo.getShareInstance().userRegisterPasswd = self.userRegisterPasswd.text!// 调用XMPPTool的 注册方法WSBXMPPTool.getSharedInstance().registerDelegate = selfWSBXMPPTool.getSharedInstance().userRegister()}/** 实现注册协议中的方法 */func registerSuccess() {print("注册成功")self.dismissViewControllerAnimated(true, completion: nil)}func registerFailed() {print("注册失败")}func registerNetError() {print("注册时网络错误")}}登录和注册协议import Foundation// 登录协议 protocol WSBXMPPLoginDelegate : NSObjectProtocol {// 登录成功func  loginSuccess()// 登录失败func  loginFailed()//  网络错误func  loginNetError()}// 注册协议protocol WSBXMPPRegisterDelegate : NSObjectProtocol {// 注册成功func  registerSuccess()// 注册失败func  registerFailed()// 注册网络错误func  registerNetError()}Swift:import UIKit/** 桥接文件 项目--buildSettings --> 搜索 Objective-c Bride 设置即可这是一个XMPP的工具类 可以完成登录和注册的行*/class WSBXMPPTool: NSObject, XMPPStreamDelegate {var  xmppStream : XMPPStream!// 登录的Delegateweak var loginDelegate : WSBXMPPLoginDelegate?// 注册的Deletegateweak var registerDelegate : WSBXMPPRegisterDelegate?// 保证xmppStream 使用时非空override init() {super.init()setupXmppStream()}class func  getSharedInstance() -> WSBXMPPTool {struct Singleton {static var predicate : dispatch_once_t = 0static var instance : WSBXMPPTool? = nil}dispatch_once(&Singleton.predicate) { () -> Void inSingleton.instance = WSBXMPPTool()}return  Singleton.instance!}// 设置流 设置代理func setupXmppStream(){xmppStream = XMPPStream()xmppStream.addDelegate(self, delegateQueue: dispatch_get_main_queue())}// 连接服务器func connectToHost(){// 先断开上次的 不断开登录之后没法再登录xmppStream.disconnect();// 调用设置xmppStream if self.xmppStream == nil {self.setupXmppStream()}var userName : String? = nilif WSBUserinfo.getShareInstance().isLogin! {userName = WSBUserinfo.getShareInstance().userName}else{userName = WSBUserinfo.getShareInstance().userRegisterName}// 构建jid   设置hostName 和 port xmppStream.myJID = XMPPJID.jidWithUser(userName, domain: XMPPDOMAIN, resource: "iphone")xmppStream.hostName = XMPPHOSTNAMExmppStream.hostPort = XMPPPORTdo {try xmppStream.connectWithTimeout(XMPPStreamTimeoutNone)}catch let error as NSError{print(error.description)}}// 连接成功(代理方法)func xmppStreamDidConnect(sender: XMPPStream!) {// 调用发送密码 请求授权if WSBUserinfo.getShareInstance().isLogin!{self.sendLoginPasswd()}else{// 使用密码注册self.sendRegisterPasswd()}}// 发送密码 注册func sendRegisterPasswd(){do{try xmppStream.registerWithPassword(WSBUserinfo.getShareInstance().userRegisterPasswd)}catch let error as NSError{print(error.description)}}// 发送密码 请求授权func sendLoginPasswd(){do{try xmppStream.authenticateWithPassword(WSBUserinfo.getShareInstance().userPasswd)}catch let error as NSError{print(error.description)}}// 授权成功(代理方法)func xmppStreamDidAuthenticate(sender: XMPPStream!) {print("授权成功")// 发送在线消息self.sendOnLine()// 调用代理的登录成功的方法loginDelegate?.loginSuccess()}// 发送在线消息func sendOnLine(){xmppStream.sendElement(XMPPPresence())}// 授权失败func xmppStream(sender: XMPPStream!, didNotAuthenticate error: DDXMLElement!) {print(error.description)// 授权失败 调用代理的登录失败的方法loginDelegate?.loginFailed()}// 连接断开(代理方法)func xmppStreamDidDisconnect(sender: XMPPStream!, withError error: NSError!) {// 如果网络有问题断开 则error 中有值// 如果是主动断开  则error是 nilif error != nil {if WSBUserinfo.getShareInstance().isLogin!{//登录网络有问题 调用代理的网络错误loginDelegate?.loginNetError()}else{// 注册时网络有问题registerDelegate?.registerNetError()}}}//注册成功 (代理方法 )func  xmppStreamDidRegister(sender: XMPPStream!) {// 调用代理的注册成功registerDelegate?.registerSuccess()}// 注册失败 (代理方法 )func xmppStream(sender: XMPPStream!, didNotRegister error: DDXMLElement!) {registerDelegate?.registerFailed()}// 用户完成登录的方法func  userLogin(){self.connectToHost()}// 用户完成注册的方法func  userRegister(){self.connectToHost()}}

enum XMPPResultType{case XMPPResultTypeRegisterSuccess,XMPPResultTypeRegisterFailed,XMPPResultTypeRegisterNetError
}
typealias RegisterCloserType = (result : XMPPResultType) -> Void

    weak var loginDelegate : WSBXMPPLoginDelegate?// 保存传入的闭包var registerCloser : RegisterCloserType!

    /* 用户完成注册的方法 当用闭包时 需要让调用者传入一个闭包来获取注册状态  */func  userRegister(function : RegisterCloserType!){registerCloser = functionself.connectToHost()}

 registerCloser!(result: XMPPResultType.XMPPResultTypeRegisterSuccess)

 weak var weakVc = selfWSBXMPPTool.getSharedInstance().userRegister { (result) -> Void inswitch result{case .XMPPResultTypeRegisterSuccess:print("注册成功")weakVc?.dismissViewControllerAnimated(true, completion: nil)case .XMPPResultTypeRegisterFailed:print("注册失败")case .XMPPResultTypeRegisterNetError:print("网络错误")} } }