-Sending messages back and forth is at the core of instant messaging. Although individual messages -can be sent and received as packets, it's generally easier to treat the string of messages -as a chat using the org.jivesoftware.smack.Chat class. + Sending messages back and forth is at the core of instant messaging. Although individual + messages + can be sent and received as packets, it's generally easier to treat the string of messages + as a chat using the org.jivesoftware.smack.Chat class.
-Chat + Chat
-A chat creates a new thread of messages (using a thread ID) between two users. The +A chat creates a new thread of messages (using a thread ID) between two users. The following code snippet demonstrates how to create a new Chat with a user and then send them a text message:-
-// Assume we've created an XMPPConnection name "connection".
-Chat newChat = connection.createChat("jsmith@jivesoftware.com", new MessageListener() {
+// Assume we've created an XMPPConnection name
+ "connection".
+ChatManager chatmanager = connection.getChatManager();
Chat newChat = chatmanager.createChat("jsmith@jivesoftware.com", new MessageListener() {
public void processMessage(Chat chat, Message message) {
- System.out.println("Received message: " + message);
- }
-});
-chat.sendMessage("Howdy!");
-
+ System.out.println("Received message: " + message);
+ }
+});
try {
+ chat.sendMessage("Howdy!");
} catch (XMPPException e) {
System.out.println("Error Delivering block");
}
+
+-The Chat.sendMessage(String) method is a convenience method that creates a Message -object, sets the body using the String parameter, then sends the message. In the case -that you wish to set additional values on a Message before sending it, use the -Chat.createMessage() and Chat.sendMessage(Message) methods, as in the -following code snippet:
+ The Chat.sendMessage(String) method is a convenience method that creates a Message + object, sets the body using the String parameter, then sends the message. In the case + that you wish to set additional values on a Message before sending it, use the + Chat.createMessage() and Chat.sendMessage(Message) methods, as in the + following code snippet: + +
Message newMessage = newChat.createMessage();
newMessage.setBody("Howdy!");
message.setProperty("favoriteColor", "red");
newChat.sendMessage(newMessage);
-+ + +
-You'll also notice in the example above that we specified a MessageListener when creating a chat. -The listener is notified any time a new message arrives from the other user in the chat. -The following code snippet uses the listener as a parrot-bot -- it echoes back everything the other user types.
+ You'll also notice in the example above that we specified a MessageListener when creating a + chat. + The listener is notified any time a new message arrives from the other user in the chat. + The following code snippet uses the listener as a parrot-bot -- it echoes back everything the + other user types. + +
- // Assume a MessageListener we've setup with a chat.
+ // Assume a MessageListener we've setup with a chat.
public void processMessage(Chat chat, Message message) {
// Send back the same text the other user sent us.
chat.sendMessage(message.getBody());
}
-+ + +
-
+