title: how to create a navigation bar programmatically
body: <p>i have a view in which i have table view and when user taps these cells in tabel view it gets loaded another view ..
  like this i have view hierarchy and i need a navigation bar at bottom of my view whatever is the view currently visible in this hierarchy and i need to place 3 buttons on it ...
  home,about,visit...</p>
  
  <p>if any suggestions appreciated ....</p>