title: Basic layout/navigation question for android development
body: <p>What is the best approach for navigating between "windows" in an android app? </p>
  
  <p>I say "windows" because I dont the proper terminology in java. I just started.</p>
  
  <p>Lets say the first screen the user sees is a username and password input with a button. On successful login, it shows a whole new "window" with relevant logged in information?</p>
  
  <p>I attempted putting 2 EditTexts and a Button inside a view (using the Main.xml graphical layout tab[eclipse]) in main.xml, but it did not like that.</p>