How to find the devices in the range by using bluetooth?

Question

I am new to android.I want to develop an application to find the devices in the range by using Bluetooth programmatically.If any one has idea please give some sample code to me.

Answer 1

Create Broad cast receiver something like the following and add the device information

    private final BroadcastReceiver mReceiver = new BroadcastReceiver() {

        @Override
        public void onReceive(Context context, Intent intent) {
            String action = intent.getAction();
ArrayList arl = new ArrayList();    
            // 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);
                // If it's already paired, skip it, because it's been listed already
                HashMap deviceMap = new HashMap();
                deviceMap.put(device.getName(), device.getAddress());
                arl.add(deviceMap);

            // When discovery is finished, change the Activity title
            } else if (BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action)) {
                setProgressBarIndeterminateVisibility(false);
                setTitle(R.string.select_device);
                if (mNewDevicesArrayAdapter.getCount() == 0) {
                    String noDevices = getResources().getText(R.string.none_found).toString();
                    mNewDevicesArrayAdapter.add(noDevices);
                }
            }
        }


    };