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标题: XMPP接受发送消息 [打印本页]
作者: cnaka    时间: 2015-07-22 17:52
标题: XMPP接受发送消息
在现阶段的通信服务中，各种标准都有，因此会出现无法实现相互连通，而XMPP(Extensible Message and presence Protocol)协议的出现，实现了整个及时通信服务协议的互通。有了这个协议之后，使用任何一个组织或者个人提供的即使通信服务，都能够无障碍的与其他的及时通信服务的用户进行交流。例如google 公司2005年推出的Google talk就是一款基于XMPP协议的即时通信软件。下面我们就谈论一下如何简单的使用XMPP的接收和发送消息

1、在XMPPFramework.h中将需要用到的头文件打开

2、在storyboard创建展示消息页面

3、定义查询结果存储器并且进行初始化
  1. //消息存档
  2. @property(nonatomic,strong) XMPPMessageArchiving * messageArch;

  4. //消息存档存储模型
  5. @property(nonatomic,strong) XMPPMessageArchivingCoreDataStorage * messageStore;
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4、在上面storyboard创建的控制器中，添加如下代码
  1. AppDelegate * delgate=[UIApplication sharedApplication].delegate;
  2.    
  3.     //初始化头像
  4.     XMPPJID * fromJid=[XMPPJID jidWithString:self.fromJid];
  5.     NSData * fromData=[delgate.vCardAvatarModule photoDataForJID:fromJid];
  6.     self.fromImage=[[UIImage  alloc] initWithData:fromData];

  8.     NSString * userName= [[NSUserDefaults standardUserDefaults] objectForKey:@"userName"];
  9.     XMPPJID * tojid=[XMPPJID jidWithString:userName];
  10.    
  11.     //设置图片模型
  12.     NSData * toData=[delgate.vCardAvatarModule photoDataForJID:tojid];
  13.     self.meImage=[[UIImage  alloc] initWithData:toData];
  14.    
  15.     if (self.fromImage==nil) {
  16.         self.fromImage=[UIImage imageNamed:@"defalut"];
  17.     }
  18.    
  19.     if (self.meImage==nil) {
  20.         self.meImage=[UIImage imageNamed:@"defalut"];
  21.     }


  24.     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(showKey:) name:UIKeyboardWillShowNotification object:nil];
  25.    
  26.     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(hideKey:) name:UIKeyboardWillHideNotification object:nil];
  27.    
  28.     //初始化数据存储
  29.   NSString *user=  [[NSUserDefaults standardUserDefaults] objectForKey:@"userName"];
  30.    
  31.     //初始化请求
  32.     NSFetchRequest * request=[[NSFetchRequest alloc] initWithEntityName:@"XMPPMessageArchiving_Message_CoreDataObject"];
  33.     request.predicate=[NSPredicate predicateWithFormat:@"bareJidStr=%@ and streamBareJidStr=%@",self.fromJid,user];
  34.    
  35.    
  36.     //定义排序
  37.     NSSortDescriptor * des=[NSSortDescriptor sortDescriptorWithKey:@"timestamp" ascending:YES];
  38.     [request setSortDescriptors:@[des]];
  39.    
  40.     //获取上下文
  41.     NSManagedObjectContext *context=[delgate.messageStore mainThreadManagedObjectContext];
  42.    
  43.     //初始化结果存储器
  44.     fetch=[[NSFetchedResultsController alloc] initWithFetchRequest:request managedObjectContext:context sectionNameKeyPath:nil cacheName:nil];
  45.    
  46.     //设置代理
  47.     fetch.delegate=self;
  48.    
  49.     //开始查询
  50.     [fetch performFetch:nil];
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5、创实现tableView的代理方法
  1. -(NSInteger) tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
  2.     id <NSFetchedResultsSectionInfo>  info=fetch.sections[section];
  3.         NSLog(@"===%ld",info.numberOfObjects);
  4.     return [info numberOfObjects];
  5.    
  6. }
  7. - (UITableViewCell *) tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
  8.     XMPPMessageArchiving_Message_CoreDataObject * obj=[fetch objectAtIndexPath:indexPath];
  9.     JRChatTableViewCell * cell=nil;
  10.     if (obj.isOutgoing) {
  11.          cell=[tableView dequeueReusableCellWithIdentifier:@"cellto"];
  12.     }else{
  13.          cell=[tableView dequeueReusableCellWithIdentifier:@"cellfrom"];
  14.     }
  15.    
  16.    
  17.     //设置头像
  18.     cell.image.image=self.meImage;
  19.     cell.selectionStyle=UITableViewCellSelectionStyleNone;
  20.     [cell setText:obj.body WithFlag:obj.isOutgoing ];
  21.     return cell;

  23. }
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6、增加键盘控制
  1. [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(showKey:) name:UIKeyboardWillShowNotification object:nil];
  2.    
  3. [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(hideKey:) name:UIKeyboardWillHideNotification object:nil];
  4. - (void) showKey:(NSNotification * ) notify{
  5.     CGFloat time=[notify.userInfo[UIKeyboardAnimationDurationUserInfoKey] doubleValue]  ;
  6.     CGRect frame=[notify.userInfo[UIKeyboardFrameBeginUserInfoKey] CGRectValue];
  7.     [UIView animateWithDuration:time animations:^{
  8.         self.keyView.transform=CGAffineTransformMakeTranslation(0, frame.size.height*-1);
  9.     }];
  10. }

  12. - (void) hideKey:(NSNotification * ) notify{
  13.     CGFloat time=[notify.userInfo[UIKeyboardAnimationDurationUserInfoKey] doubleValue]  ;
  14.     [UIView animateWithDuration:time animations:^{
  15.         self.keyView.transform=CGAffineTransformIdentity;
  16.     }];
  17. }
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7、发送消息
  1. -(BOOL)textFieldShouldReturn:(UITextField *)textField{
  2.     [textField resignFirstResponder];
  3.    
  4.     //发送消息
  5.    
  6.     //1 取出文本
  7.     AppDelegate * delgate=[UIApplication sharedApplication].delegate;
  8.    
  9.     XMPPJID * jid=[XMPPJID jidWithString:self.fromJid];
  10.    
  11.     //初始化消息体
  12.     XMPPMessage * message=[XMPPMessage messageWithType:@"chat" to:jid];
  13.     [message addBody:self.ketf.text];
  14.    
  15.     //发送消息
  16.     [delgate.stream sendElement:message];
  17.    
  18.     //将消息置空
  19.     self.ketf.text=nil;
  20.     return YES;
  21. }
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作者: renxiao2003    时间: 2015-08-12 10:34
XMPP确实是不错的推送消息的框架。



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