title: Show/hide listview
body: <p>I am using listview in my activity. Now i need to hide the listview for a particular period of time and
  then it needs to display. Its similar to our video players where seekbars while hide automatically and
  when the user touches it will get display na similar i need to achieve in my activity. Instead of seekbar i 
  need to hide my listview from the screen.Simply show/hide listviews in alternative touches. Am a newbiew. So Guide me in achieving this. Thanks in advance.</p>