New to bluetooth programming

Question

Hi,
I've encountered some problem while trying to write out a program on a mobile device to discover some device and show the information
below is my code:
import javax.bluetooth.*;
import java.util.Vector.*;
public class btClient implements DiscoveryListener {
private LocalDevice localDevice; // local Bluetooth Manager
private DiscoveryAgent discoveryAgent; // discovery agent
Vector discoveredDevices = new Vector();
private RemoteDevice[] retrieveDevices;
/** Creates a new instance of btClient */
public btClient()
public void deviceDiscovered(javax.bluetooth.RemoteDevice remoteDevice, javax.bluetooth.DeviceClass deviceClass)
discoveredDevices.addElement(remoteDevice);
public void inquiryCompleted(int param)
int i;
int s;
s = discoveredDevices.size();
if(s >0)
for(i = 0; i<s; i++)
RemoteDevice rd = (RemoteDevice)discoveredDevices.elementAt(i);
public void servicesDiscovered(int transID,javax.bluetooth.ServiceRecord[] serviceRecord)
public void serviceSearchCompleted(int transID, int responseCode)
public RemoteDevice[] btInit() throws BluetoothStateException
RemoteDevice[] result;
localDevice = null;
discoveryAgent = null;
localDevice = LocalDevice.getLocalDevice(); // Retrieve the local device to get to the Bluetooth Manager
localDevice.setDiscoverable(DiscoveryAgent.GIAC); // Servers set the discoverable mode to GIAC
discoveryAgent = localDevice.getDiscoveryAgent(); // Clients retrieve the discovery agent
this.showDev();
if(discoveredDevices.size() >0)
retrieveDevices = new RemoteDevice[discoveredDevices.size()];
for(int i =0; i<discoveredDevices.size(); i++)
retrieveDevices[i] = (RemoteDevice)discoveredDevices.elementAt(i);
return retrieveDevices;
public void showDev()
boolean started = false;
discoveredDevices.removeAllElements();
try
//retrieveDevices = discoveryAgent.retrieveDevices(discoveryAgent.CACHED);
started = discoveryAgent.startInquiry(DiscoveryAgent.GIAC, this);
catch(BluetoothStateException e)
System.err.println("Error"+ e);
if(started)
System.out.println("Inquiry Started");
else
System.out.println("Inquiry Failed");
}//end
From what i know the startInquiry() will call the deviceDiscovered(), however when i am using a debugging I don't see that it step into the method, also, when i tried to deploy it to a few mobile handset, it don't seem to work too. What is wrong with my coding?

Answer 1

import javax.bluetooth.*;
import java.util.Vector;
* @author Reiji
public class btClient implements DiscoveryListener {
    private LocalDevice localDevice; // local Bluetooth Manager
    private DiscoveryAgent discoveryAgent; // discovery agent
    Vector discoveredDevices = new Vector();
    private RemoteDevice[] retrieveDevices;
    /** Creates a new instance of btClient */
    public btClient()
    public void deviceDiscovered(javax.bluetooth.RemoteDevice remoteDevice, javax.bluetooth.DeviceClass deviceClass)
        discoveredDevices.addElement(remoteDevice);
    public void inquiryCompleted(int param)
        int i;
        int s;
        s = discoveredDevices.size();
        if(s >0)
            for(i = 0; i<s; i++)
                RemoteDevice rd = (RemoteDevice)discoveredDevices.elementAt(i);
    public void servicesDiscovered(int transID,javax.bluetooth.ServiceRecord[] serviceRecord)
    public void serviceSearchCompleted(int transID, int responseCode)
    public RemoteDevice[] btInit() throws BluetoothStateException
        RemoteDevice[] result;
        localDevice = null;
        discoveryAgent = null;
        localDevice = LocalDevice.getLocalDevice();    // Retrieve the local device to get to the Bluetooth Manager
        localDevice.setDiscoverable(DiscoveryAgent.GIAC);     // Servers set the discoverable mode to GIAC
        discoveryAgent = localDevice.getDiscoveryAgent();     // Clients retrieve the discovery agent
        this.showDev();
        if(discoveredDevices.size() >0)
              retrieveDevices = new RemoteDevice[discoveredDevices.size()];
               for(int i =0; i<discoveredDevices.size(); i++)
                   retrieveDevices[i] = (RemoteDevice)discoveredDevices.elementAt(i);
        return retrieveDevices;
    public void showDev()
        boolean started = false;
        discoveredDevices.removeAllElements();
        try
        //retrieveDevices = discoveryAgent.retrieveDevices(discoveryAgent.CACHED);
           started = discoveryAgent.startInquiry(DiscoveryAgent.GIAC, this);
        catch(BluetoothStateException e)
            System.err.println("Error"+ e);
        if(started)
            System.out.println("Inquiry Started");
        else
            System.out.println("Inquiry Failed");
}sorry, this is the repost of my code thanks :)