ios - Changing viewController on Button Click

Question

I am new to iPhone programming. what I am trying is I have one screen with a button. And I want to change the view controller not only the view when I click that button (I know how to add subview) because from that 2nd view controler, I have to go to the third view which is not possible if I add subview in first place. Can anybody please help me with that? Is this possible? and if yes, how? All the views and view controller are created programmaticaly. I am not using IB.

EDIT: here is the relevant code that fires when clicking button

-(id)showCurrentLoc:(id)sender { 
 locationController = [currentLocController alloc]; 
 [entry removeFromSuperview]; 
 [newLoc removeFromSuperview]; 
 [currentLoc removeFromSuperview]; 
 [self.view setBackgroundColor:[UIColor clearColor]]; //[self.view addSubview: [locationController view]]; 
 [self.navigationController pushViewController:locationController animated:YES];  [locationController release]; 
 return 0; 
} //Location Controller is the tableViewController

Thanks Vik

Answer 1

You can do something like this

        YourViewController *objYourViewController = [[YourViewController alloc] initWithNibName:@"YourViewController" bundle:nil];
        [self.navigationController pushViewController:objYourViewController animated:YES];
        [YourViewController release];