Switching between iPhone ViewControllers programmatically - iphone

Question

I have several view controllers for various parts of a game I am working on, let's call them screens 1,2,3,4.
I would like to be able to start the game up in screen 1, then show 2, 3, 4 and then go back to screen 1 and start all over again (sometimes I want to leave out #3, etc). I have managed to get this functionality with the UITabBarController but I couldn't figure out how to hide the tab control itself. If I hid the actual control it would just display a white bar in its place. If I tried to resize the view it worked on the first screen, then the others appeared to be twice the screen size (set in viewWillAppear):
[[self view] setFrame:[[UIScreen mainScreen] bounds]];
Has anybody managed to get this sort of thing working? Would I be able to use a navigation controller to do this?

Answer 1

I suggest you to use UINavigationController for this because for your purpose this can be done with UINavigationController instead of UITabBarController.
But if you want to continue with UITabBarController then you can hide your UITabBarController by calling this method in your app delegate:
- (void) hideTabBar:(UITabBarController *) tabbarcontroller {
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.5];
for(UIView *view in tabbarcontroller.view.subviews)
{
if([view isKindOfClass:[UITabBar class]])
{
[view setFrame:CGRectMake(view.frame.origin.x, 480, view.frame.size.width, view.frame.size.height)];
}
else
{
[view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, 480)];
}
}
[UIView commitAnimations];
}