Java Development

[arif]

Hi

I tried to detect bluetooth devices with this code - 

         try
         {
             LocalDevice localDevice = LocalDevice.getLocalDevice();
             DiscoveryAgent discoveryAgent = localDevice.getDiscoveryAgent();
             discoveryAgent.startInquiry(DiscoveryAgent.GIAC, this);
         }
         catch(Exception e)
         {
         }

It detects one or two devices, and device discovered method is called, and sudenly inquiryCompleted is called, and no other device is detected.

What I want is to make the inquiry mode longer so that it can detect all the devices active near me. How can I do that?

Thanks.

[arif]

Hi

I really in need of help in this issue.

If my problem is not clear, please ask me.

[Bottomfish]

Do you have more than two devices around that you want to detect?

Make the other devices are discoverable if you want GIAC inquiry to find them.

Use retreiveDevices(CACHED/PREKNOWN) to get list of previously pair 

devices. Link:javax.bluetooth 

[arif]

Hi Bottomfish

Thanks for reply.

Yes, I have more than two discoverable devices around. 

When I search 1/2 device(s) is discovered. If I search immediately it discovers 1/2 devices again, sometimes same devices, some times another 1/2 devices. No consistency. What should I do then?

[Bottomfish]

Your other devices may be only set to be discoverable for only a limited period.

For example, my pearl can be set to be discoverable for only 2 minutes beside 

the yes or no options.

Try a stub discoverylistener object and pass it startInquiry.

Print out any devices discovered and inquiry completed status

for both startInquiry(GIAC and LIAC, listener)...

Please provide more info about your other devices. 

[arif]

---

Bottomfish wrote:

Your other devices may be only set to be discoverable for only a limited period.

---

I don't think so, the bluetooth demo that came with blackberry can discover all of those 7/8 devices.

---

Bottomfish wrote:

Try a stub discoverylistener object and pass it startInquiry.

Print out any devices discovered and inquiry completed status

for both startInquiry(GIAC and LIAC, listener)...

---

 

Can you give me sample code?

Thanks.

[Bottomfish]

Post your code, let us see what your are doing for

devicediscovered and inquirycomplete methods. 

[arif]

I coded in office, now this is weekend. I will go to office next Sunday, and will give you the code.

Thanks for posting.

Best Regards

[kilic]

Bottomfish,

I have the same issue.I also tried to call agent.startInquiry(DiscoveryAgent.GIAC, this) more than once, but without success. I have 3 diffrent BT-GPS  (V10, 382502) and it only find finds one @ a time, but sometimes two;

Below is my code posted..

    public void deviceDiscovered(RemoteDevice remoteDevice, DeviceClass deviceClass)
    {
        String strDevName = null;
        try {
            strDevName = remoteDevice.getFriendlyName(true);
        }
        catch (Exception e) {
            //TODO
            e.printStackTrace();
        }
       
        if (strDevName != null && !hstDevInfo.containsKey(strDevName) ) {
            hstDevInfo.put(strDevName, new Boolean(false));
            activeDevices.append(strDevName, null);
            devicesFound.addElement(remoteDevice);
        }
        if (iInquiryCounter < 5) {
            iInquiryCounter++;
            System.out.println("==========>starting Inguiry #" + iInquiryCounter);
            try {
                agent.startInquiry(DiscoveryAgent.GIAC, this);
            } catch (BluetoothStateException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    }

    public void inquiryCompleted(int param)
    {
        switch (param) {
            case DiscoveryListener.INQUIRY_COMPLETED:
                if (devicesFound.size() > 0) {
                    activeDevices.addCommand(select);
                    activeDevices.setSelectCommand(select);
                } else {
                    try {
                          activeDevices.append("No Devices Found", null);
                    }
                    catch (Exception e) {
                        //TODO
                    }
                }
                display.setCurrent(activeDevices);
                break;
           
            case DiscoveryListener.INQUIRY_ERROR:
                break;
           
            case DiscoveryListener.INQUIRY_TERMINATED:
                break;
        }
    }

[jdmidtun]

Did you ever get resolution for this issue?  I had the same problem and resolved it by not calling getFriendlyName from the diveceDiscovered callback.  Store up the remote devices and go through the names after words.