title: ios UIView animation curves
body: <p>Is there any way to do things the "short and easy" way like below? The curve appears to still use <code>EaseOut</code>.</p>
  
  <pre><code>[UIView setAnimationCurve:UIViewAnimationCurveEaseIn];
  [UIView animateWithDuration:0.5 animations:^{
      // ... do stuff here
  }];
  </code></pre>