XMPPFrameWork IOS 开发（七）消息回执

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原始地址：XMPPFrameWork IOS 开发（七）消息回执

请参考：XEP-0184协议

协议内容：

发送消息时附加回执请求

[cpp] view plaincopyprint?
<message  
    from='northumberland@shakespeare.lit/westminster'  
    id='richard2-4.1.247'  
    to='kingrichard@royalty.england.lit/throne'>  
  <body>My lord, dispatch; read o'er these articles.</body>  
  <request xmlns='urn:xmpp:receipts'/>  
</message>  

代码实现

[cpp] view plaincopyprint?
NSString *siID = [XMPPStream generateUUID];  
//发送消息  
XMPPMessage *message = [XMPPMessage messageWithType:@"chat" to:jid elementID:siID];  
NSXMLElement *receipt = [NSXMLElement elementWithName:@"request" xmlns:@"urn:xmpp:receipts"];  
[message addChild:receipt];  
[message addBody:@"测试"];  
[self.xmppStream sendElement:message];  

收到回执请求的消息，发送回执

[cpp] view plaincopyprint?
<message  
    from='kingrichard@royalty.england.lit/throne'  
    id='bi29sg183b4v'  
    to='northumberland@shakespeare.lit/westminster'>  
  <received xmlns='urn:xmpp:receipts' id='richard2-4.1.247'/>  
</message>  

代码实现

[cpp] view plaincopyprint?
- (void)xmppStream:(XMPPStream *)sender didReceiveMessage:(XMPPMessage *)message  
{     
    //回执判断  
    NSXMLElement *request = [message elementForName:@"request"];  
    if (request)  
    {  
        if ([request.xmlns isEqualToString:@"urn:xmpp:receipts"])//消息回执  
        {  
            //组装消息回执  
            XMPPMessage *msg = [XMPPMessage messageWithType:[message attributeStringValueForName:@"type"] to:message.from elementID:[message attributeStringValueForName:@"id"]];  
            NSXMLElement *recieved = [NSXMLElement elementWithName:@"received" xmlns:@"urn:xmpp:receipts"];  
            [msg addChild:recieved];  
              
            //发送回执  
            [self.xmppStream sendElement:msg];  
        }  
    }else  
    {  
        NSXMLElement *received = [message elementForName:@"received"];  
        if (received)  
        {  
            if ([received.xmlns isEqualToString:@"urn:xmpp:receipts"])//消息回执  
            {  
                //发送成功  
                NSLog(@"message send success!");  
            }  
        }  
    }  
      
    //消息处理  
    //...  
}  

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