title: Fetch URL of current page from WebView
body: <p>I have a link which contains collection of books (for eg. <em>www.bookstore.com</em>), from which I select one book (with URL <em>www.bookstore.com/book1.epub</em>) which should be downloaded to my library when user clicks on Download button of that book. </p>
  
  <p>I'm done with download part but what is bothering to me is How will I get the URL of specific book which has been selected by user to download i.e. <em>www.bookstore.com/book1.epub</em> ?</p>
  
  <p>I tried with <code>webView.getUrl()</code>, but it doesn't get fired at all except for first load when it's null.</p>
  
  <p>Any help appreciated.</p>