UIViewController.... AppDelegate.... Where does the code go!
<p>I'm slowly picking up Objective-C and the iPhoneSDK but I'm having some problems getting my head around the MVC pattern. </p>

<p>I'm fleshing out a game which I hope will have screens like a splash screen, title, help etc. What I'm currently doing is creating a new UIViewController and a new nib for each of these screens, is this the right practice? In the main AppDelegate I've created methods that show the views and add them with [window addSubView:controller.view]. What I'm finding is that with the show/hide code sat in the AppDelegate, I have to create a reference of the AppDelegate in the loaded controller in order to target the hide code.
This seems a bit awkward but I expect I'm probably approaching this wrong, how do you guys usually do this sort of thing?</p>

<pre><code>// example from AppDelegate
-(IBAction)showHelp:(id)sender
{
    helpScreen = [[helpController alloc] initWithNibName:@"helpView" bundle:nil];

    // send copy of self in order to target closeHelp method from InterfaceBuilder
    helpScreen.appDel = self;

    helpScreen.view.alpha = 0;
    [window addSubview:helpScreen.view];

    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:1.0];
    helpScreen.view.alpha = 1.0;
    [UIView commitAnimations];
}
</code></pre>

<p>Many Thanks,</p>
