custom picker view animation like action sheet
<p>How to animate custom picker view like actionsheet?</p>

<pre><code>UIView *view = [[[UIView alloc]initWithFrame:CGRectMake(0,300,320,300)] autorelease];
view.backgroundColor = [UIColor brownColor];
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1.0];
[UIView setAnimationTransition:UIViewAnimationTransitionNone forView:[self view] cache:YES];
[view setFrame:CGRectMake(0.0f,300.0f,320.0f,325.0f)];
[UIView commitAnimations]; 
</code></pre>
