Android Open Source - expo-connect I P Address Sender

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Back to project page expo-connect.

License

The source code is released under:

GNU General Public License

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Java Source Code

package it.polimi.camparollo.expoconnect.datatransfer;
/*ww w .j a  v a  2s.co  m*/
import it.polimi.camparollo.expoconnect.wifi.StartActivity;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.util.ArrayList;

import android.os.AsyncTask;
import android.util.Log;


public class IPAddressSender {

  private SenderTask task = new SenderTask(); 
  private StartActivity context;
  
  public IPAddressSender(StartActivity context) {
    this.context = context;
  }
  
  public void sendData(ArrayList<String> data){
    
    task.execute(data);
    
  }

  public class SenderTask extends AsyncTask<ArrayList<String>, Void, Boolean> {

    @Override
    protected Boolean doInBackground(ArrayList<String>... params) {
      
      Socket socket = new Socket();
      
      try {
        
        String ipstr = params[0].get(0).split("/")[1];
        InetAddress host = InetAddress.getByName(ipstr);
        Log.d(StartActivity.TAG, host.toString());
        int port = 7777;
        int len;
        byte buf[]  = new byte[1024];
        
          /**
           * Create a client socket with the host,
           * port, and timeout information.
           */
          socket.bind(null);
          socket.connect(new InetSocketAddress(host, port), 10000);

          OutputStream outputStream = socket.getOutputStream();
          InputStream inputStream = new ByteArrayInputStream(params[0].get(1).getBytes());
          while ((len = inputStream.read(buf)) != -1) {
            Log.d(StartActivity.TAG, "sending IP Address");
              outputStream.write(buf, 0, len);
          }
          outputStream.close();
          inputStream.close();
          Log.d(StartActivity.TAG, "IP Address sent");
      } catch (Exception e) {
          e.printStackTrace();
      } finally {
          if (socket != null) {
              if (socket.isConnected()) {
                  try {
                      socket.close();
                  } catch (IOException e) {
                      e.printStackTrace();
                  }
              }
          }
      }
      return null;
    }

    @Override
    protected void onPostExecute(Boolean result) {
      super.onPostExecute(result);
      new ScreenDataReceiver(context).receiveData();
    }
    
    
  }
}

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