Question

I have in my app class UINavigationController (with NIB) and I want to open this as a ModalView.

I do that so: (ColorInfo is just this UINavigationController class)

ColorInfo *InfoScreen = [[ColorInfo alloc] initWithNibName:@"ColorInfo" bundle:[NSBundle mainBundle]];
[InfoScreen setModalTransitionStyle:UIModalTransitionStyleCrossDissolve];
[self presentModalViewController:InfoScreen animated:YES];

It displays me an empty UINavigtionController element. Tell me please how could I open ColorInfo (as UINavigationController) in ModalView, where I will be able to navigate through?
I thought I can complete ColorInfo with all pushViewController methods and then open it over another screen in ModalView.

Tell me how to reach this effect.

Answer 1

From what you’ve stated you’ve inherited UINavigationController in ColorInfo which is not what you want. You want ColorInfo to be the root view of a UINavigationController like so

ColorInfo *InfoScreen = [[ColorInfo alloc] initWithNibName:@"ColorInfo" bundle:[NSBundle mainBundle]];
UINavigationController *nav = [[UINavigationController alloc]   initWithRootViewController:InfoScreen];
[self presentModalViewController:nav animated:YES];

I recommend you read the navigation controller documentation for further clarity.

http://developer.apple.com/library/ios/#documentation/uikit/reference/UINavigationController_Class/Reference/Reference.html