Add a new UIToolbar to UIViewController
===

I'm developing a TabBar based application with an UIViewController witch appear when a cell is selected in the first view. I would like to add an UIToolBar with some informations (in the items) given by the segue of the selected cell. I already tried the code bellow (found in a similar question) but it doesn't work :
    
    if (self) {
        NSArray* toolbarItems = [NSArray arrayWithObjects:
                                 [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd 
                                                                               target:self
                                                                               action:@selector(addStuff:)],
                                 [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemSearch 
                                                                               target:self
                                                                               action:@selector(searchStuff:)],
                                 nil];
        [self setToolbarItems:toolbarItems];
        [self.navigationController setToolbarHidden:NO animated: YES];
        
    }
    return self;


Does anyone knows another way to add a new UIToolBar over the one inferred by the Navigation Controller ?