Help! Adding image to UIViewController Transition! :S

I currently have several view controllers and transitions set up throughout my app using:

 ViewController2 *controller2 = [[ViewController2 alloc] initWithNibName:@"ViewController2" bundle:nil];
 controller2.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
开发者_运维技巧 [self presentModalViewController:controller2 animated:YES];
 [controller2 release]; controller2 = nil;

What I really want is when the vertical transition is made, I want an image of bubbles to travel up the screen with the transition. Is there anyway of adding an Image to these transitions. If not I would like to know how to create this effect as I have seen it in apps before.

Thanks in Advance,

Adam

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Simple way would be to add a UIImageView the size of the view being animated, with your bubbles image set to it as a subview of that view. You can then remove it in the viewDidUnload or where appropriate in your code.