title: Turn ON/OFF flashlight in zxing fragment lib
body: <p>I have implemented Zxing barcode scanning library in my application. I have used following library:
  <a href="https://code.google.com/p/barcodefraglibv2/" rel="noreferrer">https://code.google.com/p/barcodefraglibv2/</a>
  I want to turn ON/OFF the flash light on click of a button when scanning but I am not able to do this. Library has exposed one function for the same but it is not working. </p>
  
  <p>Code used is: 
  fragment = (BarcodeFragment)getSupportFragmentManager().findFragmentById(R.id.sample);
  fragment.getCameraManager().setTorch(true);</p>
  
  <p>Provide me any refrence code by which I can turn ON/OFF flashlight.</p>