PeerToPeer Chat

[nfce]

Hi everbody,

I wrote peer to peer chat program . I got codes from this link. http://wiki.forum.nokia.com/index.ph...r_to_peer_chat
When it works , I touched phone to other nokia 6131 nfc phone but nothing happend. It cant recognize other phone.

Where is the my mistake ? How does it work ? Can you help me ?

[Dubb]

Is the NFC turned on in the phone's settings ?
Did you put the right permissions in the JAD file ?

[nfce]

yes, NFC is turned on. Which permission I have to put ?

[Dubb]

I just checked, no particular permission is required for this to work.
I had this example working on two 6212 and it worked fine as far as I remember.
Are the two applications properly launched on both 6131? Do you put the phone in the right position to connect? Because sometimes the NFC antenna can be a bit capricious

[nfce]

Two applications are launched on two 6131. I dont know right position. I just put one 6131 next to other 6131. and I touched 6131 to other's cover.

[Dubb]

If I remember well the antenna is on the top part of the phone when it's open, try aiming at that part.
Try reading a normal tag to make sure the handsets' NFC work properly.
Eventually consider simplifying your code to understand what happens. Something like below:

form.append("Waiting for connection...");
 try {
	Connector.open(TARGET_URL /* INITIATOR_URL on the other phone */);
} catch (IOException e) {
	form.append(e.getMessage());
}
form.append("Connected!");

[nfce]

I wrote two program for phones. One of them has target code,other has initiator codes like as below. Both of them work with normal nfc tags . but still cant connect each other.

Code for Target phone

public void run() {
			NFCIPConnection conn = null;
			// Reading state
			if (reading) {
				// Read while in reading state
			while (reading) {
				try {
					// Start waiting for other phone to initiate connection,
					// blocks until connection made or another NFCIP connection
					// open called
					conn = (NFCIPConnection) Connector.open(TARGET_URL);
						// Receive data from connection
					byte[] data = conn.receive();
						// Send empty message to connection
					conn.send(null);
						// Append received string to form
					form.append(">> " + new String(data) + "\n");
						// Close connection
					conn.close();
				} catch (Exception ex) {
				try {
					if (conn != null) {
					conn.close();
					}
				} 
				catch (IOException e) {
				}
			  }
			}

Codes for Iniatitor Phone

while (writing) {
			try {
				// Try to connect another phone, blocks until connection
				// made or another NFCIP connection open called
			conn = (NFCIPConnection) Connector.open(INITIATOR_URL);
				// Send string from TextBox to connection
			conn.send(writeTb.getString().getBytes());
				// Receive reply
			conn.receive();
				// Append sent message to form
			form.append("<< " + writeTb.getString() + "\n");
				// Close connection
			conn.close();
			display.setCurrent(form);
			read();
			}
			catch (Exception ex) {
			try {
					if (conn != null) {
						conn.close();
				}
					
			} catch (IOException e) {}
		}
	  }

[Dubb]

Well if, like you said, the Connector.open() method doesn't return then I have no clue of what might be the problem.