title: How to decode a barcode image using ZXing library in android
body: <p>I am developing an application based on the zxing library using intent and I would like the user to be able to decode a barcode image that is stored on the sd card.</p>
  
  <p>Since i am beginner in android,please tell me in detail about</p>
  
  <ol>
  <li>How to integrate ZXing with the application</li>
  <li>How to get a image file from sd card onto the application</li>
  <li>Finally how to decode the barcode image file and store the decoded result.</li>
  </ol>
  
  <p>Thanking you.</p>