Cannot receive message using Smack

Hello!

I am trying to develop a chat application for android and iOS in which I am using OpenFire as the chat server. OpenFire has already been setup on AWS. But I am facing a problem here. I cannot receive messages using Smack.

Also I need to know that if I receive messages using Smack then does it retrieves all messages in one go or it sends the latest message, when this receive API is called.

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       I am using this to get messages function not returning message list,

i am able to send message to server but cant receive message list.

         ChatManager chatmanager = con.getChatManager();

Chat newChat = chatmanager.createChat("user4@jmj-pc",null);

newChat.addMessageListener(new MessageListener() {

                @Override

  public void processMessage(Chat chat, Message message) {

  System.out.println("Received message: " +message.getBody());

  }

  });

try {

    newChat.sendMessage("message body, jmj!");

}

catch (XMPPException e) {

    System.out.println("Error Delivering block");

}

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