UIView move animation

1. - (void)setHoverViewMovedUp:(BOOL)movedUp  
2. {  
3.     [UIView beginAnimations:nil context:NULL];  
4.     [UIView setAnimationDuration:0.3];  
5.   
6.     CGRect rect = self.seqHoverView.frame;  
7.     if (movedUp)   
8.     {  
9.         rect.origin.x += kOFFSET_FOR_KEYBOARD;  
10.     }  
11.     else   
12.     {  
13.         rect.origin.x -= kOFFSET_FOR_KEYBOARD;  
14.     }  
15.     self.seqHoverView.frame = rect;  
16.     [UIView commitAnimations];  
17. }