title: Android widget preview image
body: <p>As I have been seeing out there, most of Android Widget preview images follow a design pattern which contains a simple image Centre-Vertical and left aligned with the same image's big grey shadow below it. See the Android Contacts Widget image:</p>
  
  <p><img src="https://i.stack.imgur.com/F4EbX.png" alt="enter image description here"></p>
  
  <p>If the user wants to add the widget to the screen dragging it, the logo will be the only image object which is going to be dragged and not its shadow. Trying to emulate this kind of images for my widget, I have created a simple PNG24 with a logo and its shadow below, but when dragging it both the logo and the shadow are dragged, and not just the logo as the mentioned widgets do.</p>
  
  <p>How do they do to achieve that behaviour?</p>