title: Switch between view without closing view xcode
body: <p>I have a Login interface, user interface, and a Main menu.</p>
  
  <p>When I'm logging in, I switch on my user interface.</p>
  
  <p>if I do a UIModalTransition, and if I come back to the page, I need to RE-login again, it's a problem for me.</p>
  
  <p>I search a method for Switch between view but don't close them, because if you closed them, views restart, it's the same for UIWebview, I would like to switch between views without closed and reset views.</p>
  
  <p>Is it possible ? 
  I don't really know what kind of Code is it.</p>
  
  <p>If you have ideas, please tell me.</p>