[iOS] 페이지 넘기는 효과

CGContextRef context = UIGraphicsGetCurrentContext();

[UIView beginAnimations:nil context:context];

[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];

[UIView setAnimationDuration:1.0];

UIView *whiteBackdrop = self.pageView;

NSArray *array = [self.pageView subviews];

// Choose up or down curl

[UIView setAnimationTransition: UIViewAnimationTransitionCurlUp forView:whiteBackdrop cache:YES];

for (int i=1; i<[array count]; i++)

{

    [whiteBackdrop exchangeSubviewAtIndex:[array count]-i withSubviewAtIndex:[array count]-i-1];

}

[UIView setAnimationDelegate:self];

[UIView commitAnimations];