how to check received message is read or unread in xmpp framework in ios

Question

i am developing chat application using xmppframework and i am successfully completed the send and receive message , but

1) if i am chat with user A and user B send me

Answer 1

You can have look to XEP-0184

This should be the message stanza format

  your message 
  

And This is received response message

Here messageId-1010 will be unique to get you know which message response it is.