title: Android - How to disable QR Code scanning in ZXing Library and allow only Bar code scaning
body: <p>I want to give 2 options in My Code for Zxing Bar scanning.</p>
  
  <p><strong>Options:</strong> </p>
  
  <ol>
  <li>Scan Bar Code</li>
  <li>Scan QR Code.</li>
  </ol>
  
  <p>After selecting first option only Bar-Code should get scan by ZXing Library and same for option two.</p>
  
  <p>Please help me with the code if any flag is there in Zxing to enable and disable.</p>