title: Moving through classes without creating a new instance
body: <p>Does anyone know of a way to show another class without creating a new instance?
  It seems a bit crazy from a memory management point of view that each time you want to display a different form / page you need to use StartActivity which then creates a new instances of the class instead of reusing instances previously created.</p>
  
  <p>Thanks in advance</p>
  
  <p>I guess from what has been said - there is no real way to do it which won't hinder the "Back" functionality of the OS?
  I'm building an app which is linear except on each screen it has a home button which then makes it possible to countermand this functionality and end in a loop - is there anyway you know of to destroy all over views and reset back to the main class? (IE prevent a memory leak from becoming a problem but also not damaging OS functionality)</p>
  
  <p>Consider it a "clear history" without restarting the app</p>