Switching UIViews within one tab of a TabBar Application

[Toliver182]

Hi All

ok here is my applications setup:
Two xib's

MainWindow.xib
NewsletterView.xib


Set up as follows:
MainWindow.xib
Files owner
First Responder
The Delegate
Window
Tab Bar Controller--setup to load tabs from .xib's
Two tabs -Newsletter
-Map

I'm not concerned about the Map tab.

Within the NewsletterView.xib ( i do have the .h and .m files setup)

Files owner set up with class NewsletterViewController via interface builder.
First Responder
and Two views:
View- setup as NewsSignUpView via IBOutlet - this is the first view that loads on the selected tab.
View - setup as NewsReaderView via IBOutlet


I want to be able to click a button (assigned via IBAction) on NewsSignUpView the flip horizontally to reveal NewsReaderView.


This is what i have so far:

    -(IBAction) revealNewsReaderView 
    {CGContextRef context = UIGraphicsGetCurrentContext();
    [UIView beginAnimations:nil context:context];
    [UIView setAnimationTransition: UIViewAnimationTransitionFlipFromLeft forView:newsSignUpView cache:YES];
    [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
    [UIView setAnimationDuration:1.0];	
    [self.view exchangeSubviewAtIndex:0 withSubviewAtIndex:1];
    [UIView commitAnimations];
    }

This Flips the view but doesn't change the view shown.


Can anyone provide some code, or point out where im going wrong?

Thanks in advance.