title: Android: date picker from calendar popdown
body: <p>In my app user should select a date by clicking on Edit Text, for that currently i'm using a date picker dialog and its working good but its like opening another dialog and all. so i thought of showing it like pop down menu, checkout the pic. please help me to achieve this!</p>
  
  <p><img src="https://i.stack.imgur.com/4Rq1e.png" alt="Calendar pic"></p>