Question

I have a UIViewController with a UINavigationController and a tab bar in it.

when a button is clicked I want the view to change without changing away from the UINavigationController or the TabBarController.

I tried using a ModalViewController but it hides tab bar and navigation bar.

How can I achieve this? Should I create a new ViewController?

Also What am I supposed to do if I want that view to appear only on some part of the screen?

Answer 1

create another view in the same class and then add it to your viewController by writing

[self.view addSubview:newView];

and make it hide by

newView.hidden = YES;

and show it when user taps on button by

newView.hidden = NO;

EDIT: For view to appear only on some part of the screen.
set the frame of the newView as

newView.frame = CGRectMake(10,10,300,50);//do according to your needs