1 +(XMPPManager *)share
 2 {
 3     static XMPPManager *_share=nil;
 4     static dispatch_once_t onceToken;
 5     dispatch_once(&onceToken, ^{
 6         _share=[[XMPPManager alloc] init];
 7     });
 8     return _share;
 9 }
10 -(id)init
11 {
12     if (self=[super init]) {
13         [self setupStream];
14     }
15     return self;
16 }
17 - (void)setupStream
18 {
19      xmppStream = [[XMPPStream alloc] init];
20 　　　[xmppStream addDelegate:self delegateQueue:dispatch_get_main_queue()];
21      [xmppStream setHostName:@"127.0.0.1"];
22      [xmppStream setHostPort:5222];
23 }

-(void)login
{[self connect];
}
-(void)reg
{isReg=YES;[self connect];
}
- (BOOL)connect
{if (xmppStream.isConnected) {[self disconnect];}if (![xmppStream isDisconnected]) {return YES;}if (self.userName == nil) {return NO;}[xmppStream setMyJID:[XMPPJID jidWithString:self.userName]];NSError *error = nil;if (![xmppStream connectWithTimeout:XMPPStreamTimeoutNone error:&error]){UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Error connecting"message:@"See console for error details."delegate:nilcancelButtonTitle:@"Ok"otherButtonTitles:nil];[alertView show];return NO;}return YES;
}

//成功连接服务器
- (void)xmppStream:(XMPPStream *)sender socketDidConnect:(GCDAsyncSocket *)socket
{DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD);
}
//连接服务器失败
- (void)xmppStreamDidDisconnect:(XMPPStream *)sender withError:(NSError *)error
{DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD);}
- (void)xmppStreamDidConnect:(XMPPStream *)sender
{DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD);NSError *error = nil;if (isReg){if (![xmppStream registerWithPassword:self.pwd error:&error]){}}else{if (![xmppStream authenticateWithPassword:self.pwd error:&error]){}}}

//登录成功
- (void)xmppStreamDidAuthenticate:(XMPPStream *)sender
{DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD);[self goOnline];UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"登录成功"message:@"登录成功"delegate:nilcancelButtonTitle:@"Ok"otherButtonTitles:nil];[alertView show];
}
//登录失败
- (void)xmppStream:(XMPPStream *)sender didNotAuthenticate:(NSXMLElement *)error
{DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD);UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"密码错误"message:@"密码错误"delegate:nilcancelButtonTitle:@"Ok"otherButtonTitles:nil];[alertView show];}
//注册成功
- (void)xmppStreamDidRegister:(XMPPStream *)sender
{DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD);UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"注册成功"message:@"注册成功"delegate:nilcancelButtonTitle:@"Ok"otherButtonTitles:nil];[alertView show];isReg=NO;
}
//注册失败
- (void)xmppStream:(XMPPStream *)sender didNotRegister:(NSXMLElement *)error
{DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD);NSLog(@"%@",[[error elementForName:@"error"] stringValue]);UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"注册失败"message:@"注册失败"delegate:nilcancelButtonTitle:@"Ok"otherButtonTitles:nil];[alertView show];isReg=NO;
}