title: Screen height compatible in iphone5 and iphone4
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/12397811/how-do-i-support-the-taller-iphone-5-screen-size">How do I support the taller iPhone 5 screen size?</a>  </p>
  </blockquote>
  
  
  
  <p>I am new to iPhone and I have a small doubt. Now the iphone5 screen height is 568 and previous iphone's screen height was 480. How can we implement apps for iphone5.Should we check views or controllers  all the time for iphone5 and below versions? If am wrong Please correct me. </p>
  
  <p>Thanks in advance.</p>