title: Showing progressbar in MapInfoWindow in Google Maps api v2
body: <p>I am working on an app, in which I would like to display progressbar in InfoWindow of google maps v2. I have managed to customize the InfoWindow using a customized class MapInfoWindowAdapter. </p>
  
  <p>Now, I want to show the progressbar on that InfoWindow as such used in the Uber map, to show progress.</p>
  
  <p>For that, I have tried two things</p>
  
  <ol>
  <li><p>Using progressbar in info_window_layout file </p></li>
  <li><p>Using gif image for loader to show the progress, by animating its frames one by one.</p></li>
  </ol>
  
  <p>Both of them resulted in a static image, i.e, showing no progress at all.</p>