Finished sending of simple message between two phones. The server phone accepts connections on port 1234 and it just prints from the socket to the EditText. The client opens a socket to the server and sends a test message to the server, consequently closing the socket. The phone's local ip address is printed to the EditText at the beginning of the activity. Note that the client phone MUST put the server phone's ip address into the EditText before clicking client; the server phone must only click the server button before the client clicks the client button.