[android-developers] Hi, i am having an error regarding connection between android phone and pc(bluetooth dongle)

this is my server code

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import javax.bluetooth.*;
import javax.microedition.io.*;

public class ServerSide {

//private static LocalDevice localDevice;
static LocalDevice localDevice;
DiscoveryAgent agent;

private void startServer() throws IOException{

UUID uuid = new UUID("112f8dbf1e46442292b6796539467bc9", false);
String connectionString = "btspp://localhost:" + uuid
+";name=SampleSPPServer";
//open server url
StreamConnectionNotifier streamConnNotifier =
(StreamConnectionNotifier)Connector.open( connectionString );
System.out.println("\nServer Started. Waiting for clients to
connect...");
StreamConnection connection=streamConnNotifier.acceptAndOpen();
RemoteDevice dev = RemoteDevice.getRemoteDevice(connection);
System.out.println("Remote device address:
"+dev.getBluetoothAddress());
System.out.println("Remote device name:
"+dev.getFriendlyName(true));

}
public static void main(String[] args) {
//display local device address and name
try{
localDevice = LocalDevice.getLocalDevice();
System.out.println("Address: "+localDevice.getBluetoothAddress());
System.out.println("Name: "+localDevice.getFriendlyName());
}catch(Exception e){
System.err.println(e.toString());
System.err.println(e.getStackTrace());
e.printStackTrace();}
try{
ServerSide sampleSPPServer=new ServerSide();
sampleSPPServer.startServer();
}catch(Exception e){
System.err.println(e.toString());
System.err.println(e.getStackTrace());
e.printStackTrace();}

}
}


**************************************************************

and this is my client(android) code
package client.side;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import java.util.UUID;

import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

public class ClientSideActivity extends Activity {
int REQUEST_ENABLE_BT = 0;
private BluetoothAdapter mBluetoothAdapter;
private ArrayAdapter<String> mArrayAdapter;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button btn1 = (Button)findViewById(R.id.button1);
Button btn2 = (Button)findViewById(R.id.button2);
final ListView lv1 = (ListView)findViewById(R.id.listView1);
final TextView out = (TextView)findViewById(R.id.textView1);
mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
mArrayAdapter = new
ArrayAdapter<String>(this,android.R.layout.simple_list_item_1);



if (!mBluetoothAdapter.isEnabled()) {
Intent enableBtIntent = new
Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent,
REQUEST_ENABLE_BT);
}
out.setText(null);





btn1.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
out.setText("Paired Devices");
Set<BluetoothDevice> pairedDevices =
mBluetoothAdapter.getBondedDevices();

if (pairedDevices.size() > 0){
for(BluetoothDevice device : pairedDevices){
mArrayAdapter.add(device.getName() + "\n" +
device.getAddress());
}
}
lv1.setAdapter(mArrayAdapter);

}
});



btn2.setOnClickListener(new View.OnClickListener() {

public void onClick(View v) {
out.setText("Discovered Devices");
mBluetoothAdapter.startDiscovery();
Toast msg = Toast.makeText(ClientSideActivity.this, "Discovering
Devices please wait.", Toast.LENGTH_LONG);
msg.show();

final BroadcastReceiver mReceiver = new BroadcastReceiver() {
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
// When discovery finds a device
if (BluetoothDevice.ACTION_FOUND.equals(action)) {
// Get the BluetoothDevice object from the Intent
BluetoothDevice device =
intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
// Add the name and address to an array adapter to show
in a ListView
mArrayAdapter.add(device.getAddress());
} }
};
// Register the BroadcastReceiver
IntentFilter filter = new
IntentFilter(BluetoothDevice.ACTION_FOUND);
registerReceiver(mReceiver, filter); // Don't forget to unregister
during onDestroy
}

});


lv1.setOnItemClickListener(new OnItemClickListener()
{
public void onItemClick(AdapterView<?> arg0, View arg1, int
position,long id)

{

out.setText(arg0.getItemAtPosition(position).toString());
BluetoothDevice remoteDev = (BluetoothDevice)
arg0.getItemAtPosition(position);
ConnectThread conDev = new ConnectThread(remoteDev);
conDev.start();


}
});

}


public class ConnectThread extends Thread {
private final UUID MY_UUID =
UUID.fromString("112f8dbf1e46442292b6796539467bc9");
private final BluetoothSocket mmSocket;
private final BluetoothDevice mmDevice;


public ConnectThread(BluetoothDevice device) {
// Use a temporary object that is later assigned to
mmSocket,
// because mmSocket is final
BluetoothSocket tmp = null;
mmDevice = device;

try {
// MY_UUID is the app's UUID string, also used by the
server code
tmp =
device.createRfcommSocketToServiceRecord(MY_UUID);
} catch (IOException e) { }
mmSocket = tmp;
}

public void run() {
// Cancel discovery because it will slow down the
connection
mBluetoothAdapter.cancelDiscovery();

try {
// Connect the device through the socket. This will
block
// until it succeeds or throws an exception
mmSocket.connect();
} catch (IOException connectException) {
// Unable to connect; close the socket and get out
try {
mmSocket.close();
} catch (IOException closeException) { }
return;
}
// Do work to manage the connection (in a separate
thread)

}
/** Will cancel an in-progress connection, and close the
socket */

}



}

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