title: Is there a way to change the animation style of a modal view controller appearance?
body: <p>I am trying to animate the appearance and disappearance of two view controllers' view.</p>
  
  <p>I used the following two lines of code:</p>
  
  <pre><code>self.modalTransitionStyle=UIModalTransitionStyleCoverVertical;
  [self presentModalViewController:viewcontroller animated:YES]; 
  </code></pre>
  
  <p>to make the view controller's view animate in from the bottom of the screen, which works well.</p>
  
  <p>My question is: can I change the style of this animation so that the view isn't always sliding in from the bottom of the screen?  How can I make it animate in from the top of the screen, for example?</p>