title: Listview that expands when we zoom inside in android
body: <p><img src="https://i.stack.imgur.com/EVTHd.png" alt="enter image description here"></p>
  
  <p>I have tried different examples searching different sites for expandable list view...
  I had been successful in making an Expandable Listview....but it expands only when click on to it groups and button...i may require it like when i drag my two fingers in v shape model...it opens inside view....like in iphone map...when we zoom with two fingers it zoomins... any suggestions??
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