title: Android : how to add multiple images on a layout with zoom,pan,scale functionality
body: <p>I am making an application which will work like this : </p>
  
  <ul>
  <li>I will have a viewpager </li>
  <li>each pager element will be an image as background </li>
  <li>I need to have the ability to add custom objects (other small images) on this background and to move and scale </li>
  <li>I need the functionality to zoom the whole page with all the objects on it zooming as well with the background</li>
  </ul>
  
  <p>Can you help me on this ?</p>
  
  <p>thank you</p>