iOS : UINavigationbar button, font and text color

iOS : UINavigationbar button, font and text color

    
    UIBarButtonItem *barButtonItemCart = [[UIBarButtonItem alloc] initWithTitle:@"Cart"
                                                                      style:UIBarButtonItemStylePlain
                                                                     target:self
                                                                     action:@selector(buttonCartPressed:)];
    
    NSDictionary *navbarTitleTextAttributes = [NSDictionary dictionaryWithObjectsAndKeys:
                                               [UIColor whiteColor],NSForegroundColorAttributeName,
                                               [UIFont fontWithName:@"Avenir-Light" size:16],NSFontAttributeName,nil];
    [barButtonItemCart setTitleTextAttributes:navbarTitleTextAttributes forState:UIControlStateNormal];
    
    viewController.navigationItem.rightBarButtonItem = barButtonItemCart;