Scrolling code in UICatalog

Hi,

The below code is used in UICatalog example for scrolling.


in TextFieldController.m

// Animate the entire view up or down, to prevent the keyboard from covering the author field.
- (void)setViewMovedUpBOOL)movedUp
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.3];
// Make changes to the view's frame inside the animation block. They will be animated instead
// of taking place immediately.
CGRect rect = self.view.frame;
if (movedUp)
{
// If moving up, not only decrease the origin but increase the height so the view
// covers the entire screen behind the keyboard.
rect.origin.y -= kOFFSET_FOR_KEYBOARD;
rect.size.height += kOFFSET_FOR_KEYBOARD;
}
else
{
// If moving down, not only increase the origin but decrease the height.
rect.origin.y += kOFFSET_FOR_KEYBOARD;
rect.size.height -= kOFFSET_FOR_KEYBOARD;
}
self.view.frame = rect;

[UIView commitAnimations];
}

I used that code,But it is not working.

Whats mistake i done.

Can anybody please tell me?

Regards
judy