s = new Server();
mythread = new Thread(runnable);
mythread.start();

public class Server implements Runnable{
    ServerSocket servsock;
    String fname;

    @Override
    public void run() {
        int filesize=6022386;

        long start = System.currentTimeMillis();
        int bytesRead;
        int current = 0;

        try {
        // create socket
         servsock = new ServerSocket(5554);
          while (true) {
            System.out.println("Waiting...");
            Socket sock = servsock.accept();
            System.out.println("Accepted connection : " + sock);

            // receive file
            byte [] mybytearray  = new byte [filesize];
            InputStream is = sock.getInputStream();

            bytesRead = is.read(mybytearray,0,mybytearray.length);
            current = bytesRead;

            fname = new String(mybytearray,0,256).replace(" ", "");


            do {
                bytesRead =
                        is.read(mybytearray, current, (mybytearray.length-current));
                if(bytesRead >= 0) current += bytesRead;
            } while(bytesRead > -1);

                FileOutputStream fos = new FileOutputStream(Environment.getExternalStorageDirectory() + "/data/" + f);
                BufferedOutputStream bos = new BufferedOutputStream(fos);

                bos.write(mybytearray, 0, current);
                bos.flush();
                long end = System.currentTimeMillis();
                System.out.println(end - start);
                bos.close();
                sock.close();

          }
        }
            catch(Exception e) {
                Log.e("TCP", "S: Error", e);
            }
        finally {
            try {
                servsock.close();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    }
    //@Override
    protected void onDestroy() {
      //  super.onDestroy();
        if (servsock != null) {
            try {
                servsock.close();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    }
}