Look for the actual error in the logcat view (Eclipse) or "adb logcat"
(command line).
Also make sure you declared the INTERNET permission in your manifest.
R/
On Fri, Oct 2, 2009 at 8:58 AM, Android_n00b <nikhil...@gmail.com> wrote:
>
> Hi
> I'm implementing a program which uses sockets to communicate between
> the client and server. I am getting this to work fine with just a
> message. However, I want to have an EditText field in my application,
> which when I hit a 'Send' button, sends the text from the field to my
> server and logs it. I am trying to implement this, but my program
> always crashes. Any help would be appreciated. Here is my code:
>
> Android Client:
> public class SocketTest extends Activity {
> /** Called when the activity is first created. */
> �...@override
> public void onCreate(Bundle savedInstanceState) {
> super.onCreate(savedInstanceState);
> setContentView(R.layout.main);
> Thread sThread = new Thread(new TCPServer());
> Thread cThread = new Thread(new TCPClient());
> sThread.start();
> try {
> Thread.sleep(1000);
> } catch (InterruptedException e) { }
>
> cThread.start();
> }
> }
>
> TCP Server:
> public class TCPServer implements Runnable{
>
> public static final String SERVERIP = "127.0.0.1";
> public static final int SERVERPORT = 8888;
> public void run() {
> try {
> Log.d("TCP", "S: Connecting...");
>
> ServerSocket serverSocket = new ServerSocket
> (SERVERPORT);
> while (true) {
> Socket client = serverSocket.accept();
> Log.d("TCP", "S: Receiving...");
> try {
> BufferedReader in = new BufferedReader(new
> InputStreamReader(client.getInputStream()));
> String str = in.readLine();
> Log.d("TCP", "S: Received: '" + str + "'");
> } catch(Exception e) {
> Log.e("TCP", "S: Error", e);
> } finally {
> client.close();
> Log.d("TCP", "S: Done.");
> }
>
> }
>
> } catch (Exception e) {
> Log.e("TCP", "S: Error", e);
> }
> }
> }
>
> TCP Client:
> public class TCPClient extends Activity implements Runnable {
>
> final EditText msg = (EditText) findViewById(R.id.message);
> final Button sendButton = (Button) findViewById(R.id.sendserver);
>
> public void run() {
> sendButton.setOnClickListener(new OnClickListener() {
>
> �...@override
> public void onClick(View v) {
> // TODO Auto-generated method stub
> try {
>
> InetAddress serverAddr =
> InetAddress.getLocalHost();
> Log.d("TCP", "C: Connecting...");
> Socket socket = new Socket(serverAddr,
> TCPServer.SERVERPORT);
> String message = msg.toString();
> try {
> Log.d("TCP", "C: Sending: '" + message
> + "'");
> PrintWriter out = new PrintWriter( new
> BufferedWriter( new OutputStreamWriter(socket.getOutputStream
> ())),true);
>
> out.println(message);
> Log.d("TCP", "C: Sent.");
> Log.d("TCP", "C: Done.");
>
> } catch(Exception e) {
> Log.e("TCP", "S: Error", e);
> } finally {
> socket.close();
> }
> } catch (Exception e) {
> Log.e("TCP", "C: Error", e);
> }
> }
> }) ;
>
> }
> }
> >
>
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