gistfile1.txt

private BluetoothAdapter.LeScanCallback mLeScanCallback =
new BluetoothAdapter.LeScanCallback() {

    @Override    public void onLeScan(final BluetoothDevice device, final int rssi, byte[] scanRecord) {
        runOnUiThread(new Runnable() {
            @Override            public void run() {

                runOnUiThread(new Runnable() {
                    @Override                    public void run() {
                        addDevice(device, rssi);
                    }
                });

            }
        });
    }
}