title: Iphone page curl effect
body: <p>I am using this code for Page curl effect ....Its work fine in simulator and device... But its not (setType:@"pageCurl") apple documented api , this caused it to be rejected by the iPhone Developer Program during the App Store review process:   </p>
  
  <pre><code>animation = [CATransition animation];
  [animation setDelegate:self];
  [animation setDuration:1.0f];
  animation.startProgress = 0.5;
  animation.endProgress   = 1;
  [animation setTimingFunction:UIViewAnimationCurveEaseInOut];
  [animation setType:@"pageCurl"];
  [animation setSubtype:@"fromRight"];
  [animation setRemovedOnCompletion:NO];
  [animation setFillMode: @"extended"];
  [animation setRemovedOnCompletion: NO];
  [[imageView layer] addAnimation:animation 
                           forKey:@"pageFlipAnimation"]; 
  </code></pre>
  
  <p>So i changed and using like this </p>
  
  <pre><code>[UIView beginAnimations:nil context:NULL];
  [UIView setAnimationDuration:1];
  [UIView setAnimationDelegate:self];
  [UIView setAnimationBeginsFromCurrentState:YES];
  [UIView setAnimationCurve:UIViewAnimationCurveLinear];
  [UIView setAnimationWillStartSelector:@selector(transitionWillStart:finished:context:)];
  [UIView setAnimationDidStopSelector:@selector(transitionDidStop:finished:context:)];
  // other animation properties
  [UIView setAnimationTransition:UIViewAnimationTransitionCurlUp 
                         forView:imageView cache:YES];
  // set view properties
  [UIView commitAnimations];
  </code></pre>
  
  <p>In this above code i want to stop the page curl effect at midway.. But i cant stop it in midway like map applications in ipod... Is this any fix for this? or Is there any apple documented methods used for page curl effect in ipod touch?</p>
  
  <p>I am searching lot. but didnt get any answer ? can anyone help me?
  Thanks in advance..plz </p>