CODEWITHSUNDEEP
androidbluetooth
alexb
alexb

Reputation: 470

Pinging a bluetooth device in Android

Is there a way I can ping for a Bluetooth device in Android? The bluetooth device is not connected or paired in Android, but I know beforehand the MAC address and the PIN of the device. What I'm trying to achieve is to ping a list of MAC addresses to see if any of the devices are in range.

Upvotes: 2

Views: 8634

Answers (1)

alexb
alexb

Reputation: 470

Solved: What I did was query for the services available on the device (available UUIDs). If there's UUIDs received, then the device is in range.

So the steps were:

  • Register a broadcast received for the UUID action

    String action = "android.bluetooth.device.action.UUID";
IntentFilter filter = new IntentFilter(action);
registerReceiver(mReceiver, filter);

  • Create a bluetooth device based on the remote address and fetch it's UUIDs

    BluetoothDevice bd = bluetoothAdapter.getRemoteDevice(address);
bd.fetchUuidsWithSdp();

  • Create a broadcast receiver, which carries the device address, being able to tell me that that 

    private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
    public void onReceive(Context context, Intent intent) {
       //deviceExtra is our in range device
       deviceExtra  = 
       intent.getParcelableExtra("android.bluetooth.device.extra.DEVICE");
       Parcelable[] uuidExtra = 
       intent.getParcelableArrayExtra("android.bluetooth.device.extra.UUID");
}}};

Upvotes: 2

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