I have a problem about messaging between two android devices via TCP/IP. The problem is I can't send any messages to a 2nd Android device. When I enter the local IP of the 1st device I can send messages to myself. Here are my Server and Client classes :
Server class:
public class ServerThread implements Runnable {
public void run() {
try {
if (SERVERIP != null) {
handler.post(new Runnable() {
@Override
public void run() {
//serverStatus.setText("Listening on IP: " + SERVERIP);
}
});
serverSocket = new ServerSocket(8080);
while (true) {
// listen for incoming clients
Socket client = serverSocket.accept();
handler.post(new Runnable() {
@Override
public void run() {
//serverStatus.setText("Connected.");
}
});
try {
BufferedReader in = new BufferedReader(new InputStreamReader(client.getInputStream()));
String line = null;
while ((line = in.readLine()) != null) {
final String a=line.toString();
Log.d("ServerActivity", line);
handler.post(new Runnable() {
@Override
public void run() {
thelist.add(a);
ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(getApplicationContext(),R.layout.chat_view, R.id.chat_view_label, thelist);
lvMessage.setAdapter(arrayAdapter);
//onStop();
try {
serverSocket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
}
break;
} catch (Exception e) {
handler.post(new Runnable() {
@Override
public void run() {
//serverStatus.setText("Oops. Connection interrupted. Please reconnect your phones.");
}
});
e.printStackTrace();
}
}
} else {
handler.post(new Runnable() {
@Override
public void run() {
//serverStatus.setText("Couldn't detect internet connection.");
}
});
}
} catch (Exception e) {
handler.post(new Runnable() {
@Override
public void run() {
//serverStatus.setText("Error");
}
});
e.printStackTrace();
}
}
}
Client class :
public class ClientThread implements Runnable {
public void run() {
try {
InetAddress serverAddr = InetAddress.getByName("141.196.41.145");
Log.d("ClientActivity", "C: Connecting...");
Socket socket = new Socket(serverAddr,8080);
//Socket socket = new Socket("141.196.41.145",8080);
connected=true;
while (connected) {
try {
Log.d("ClientActivity", "C: Sending command.");
PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())), true);
// where you issue the commands
out.println(" MT 02 : " + thevariable);
Log.d("ClientActivity", "C: Sent.");
break;
} catch (Exception e) {
Log.e("ClientActivity", "S: Error", e);
}
}
socket.close();
Log.d("ClientActivity", "C: Closed.");
} catch (Exception e) {
Log.e("ClientActivity", "C: Error", e);
connected=false;
}
}
}
There "141.196.41.145" is the local IP of my 2nd device. If I change this IP to my 1st device's local IP I can send messages to myself.
Thanks for your interest and help
