title: how to create infinite looping in navigation controller like instagram application in iphone?
body: <p>i am developing an application which would have many subviews like the flow of <code>instagram</code> and <code>picyou</code> kind of social networking apps the flow is image->detail image->any comment->username->following->username->image username->image->detail image->any comment->username->following->username->image username->damn this is infinite never stops.....</p>
  
  <p>and never gets memory warning or crashed by memory issue... </p>
  
  <p>i am using navigation controller but still after some time of navigation changing some viewcontrollers it gives me error like this <code>*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Pushing the same view controller instance more than once is not supported (&lt;ViewController: 0x6d97110&gt;)'</code></p>
  
  <p>i want to do same like this on pressing back you will also get all datas back. do you have any idea how to do like this.? </p>