StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

PO
text
Body
copied!<p>Have you looked at <a href="https://developer.qualcomm.com/mobile-development/mobile-technologies/peer-peer-alljoyn">Qualcomm's AllJoyn library</a>? It works over Bluetooth or wifi only.</p> <p>The below code is copied from this <a href="http://thinkandroid.wordpress.com/2010/03/27/incorporating-socket-programming-into-your-applications/">Incorporating Socket Programming into your Applications</a></p> <pre><code>public class ServerActivity extends Activity { private TextView serverStatus; // default ip public static String SERVERIP = "10.0.2.15"; // designate a port public static final int SERVERPORT = 8080; private Handler handler = new Handler(); private ServerSocket serverSocket; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.server); serverStatus = (TextView) findViewById(R.id.server_status); SERVERIP = getLocalIpAddress(); Thread fst = new Thread(new ServerThread()); fst.start(); } 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(SERVERPORT); 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) { Log.d("ServerActivity", line); handler.post(new Runnable() { @Override public void run() { // do whatever you want to the front end // this is where you can be creative } }); } 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(); } } } // gets the ip address of your phone's network private String getLocalIpAddress() { try { for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) { NetworkInterface intf = en.nextElement(); for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) { InetAddress inetAddress = enumIpAddr.nextElement(); if (!inetAddress.isLoopbackAddress()) { return inetAddress.getHostAddress().toString(); } } } } catch (SocketException ex) { Log.e("ServerActivity", ex.toString()); } return null; } @Override protected void onStop() { super.onStop(); try { // make sure you close the socket upon exiting serverSocket.close(); } catch (IOException e) { e.printStackTrace(); } } } </code></pre>

Querying!

Guidance

An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload