I am new to scanning beacons using Android. I am using Library mentioned above, which is easy enough to understand. The reference application works and detects my Eddystone beacons. Based on the sample code, I wrote a simple app to detect Eddystone beacons. It does not work.

On the logcat, I get the following messages;

D/BluetoothAdapter: STATE_ON

D/BluetoothLeScanner: could not find callback wrapper

Here is my code, can anyone tell, what am I doing wrong.

Please Help.

public class MainActivity extends AppCompatActivity implements BeaconConsumer {

private BeaconManager beaconManager;

Identifier myBeaconNamespaceId;

Identifier myBeaconInstanceId;

Region region;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

myBeaconNamespaceId = Identifier.parse("0x334652820242ac130002");

myBeaconInstanceId = Identifier.parse("0x987654321cba");

beaconManager = BeaconManager.getInstanceForApplication(this.getApplicationContext());

beaconManager.getBeaconParsers().clear();

beaconManager.getBeaconParsers().add(new BeaconParser().setBeaconLayout(BeaconParser.EDDYSTONE_UID_LAYOUT));

// beaconManager.setDebug(true);

region = new Region("MyRegion",

myBeaconNamespaceId, myBeaconInstanceId, null);

beaconManager.bind(this);

}

@Override

protected void onDestroy() {

super.onDestroy();

beaconManager.unbind(this);

}

@Override

public void onBeaconServiceConnect() {

beaconManager.removeAllRangeNotifiers();

beaconManager.addRangeNotifier(new RangeNotifier() {

@Override

public void didRangeBeaconsInRegion(Collection beacons, Region region) {

if (beacons.size() > 0) {

Log.i("INFORMATION", "The first beacon I see is about "+beacons.iterator().next().getDistance()+" meters away.");

}

}

});

try {

beaconManager.startRangingBeaconsInRegion(new Region("MyRegion", myBeaconNamespaceId, myBeaconInstanceId, null));

} catch (RemoteException e) {

Toast.makeText(getApplicationContext(), e.getMessage() ,Toast.LENGTH_LONG).show();

}

}

private void logToDisplay(final String line) {

runOnUiThread(new Runnable() {

public void run() {

EditText editText = (EditText)MainActivity.this.findViewById(R.id.rangingText);

editText.append(line+"\n");

}

});

}

}