UINavigationBar custom title position - iphone

Question

I have a custom made UINavigationBar (different size, background etc) that has inside a custom title view. I used this code to achieve this:
UIView * mainView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, kScreenWidth, kScreenHeight)];
mainView.backgroundColor = [UIColor yellowColor];
UINavigationBar *navBar = [[UINavigationBar alloc] initWithFrame:CGRectMake(0,0,kScreenWidth,80)];
navBar.autoresizingMask = UIViewAutoresizingFlexibleWidth;
UINavigationItem *currentItem = [[UINavigationItem alloc] init];
UILabel *label = [[UILabel alloc] init];
label.font = [UIFont fontWithName:#"Helvetica-Bold" size: 30.0];
[label setBackgroundColor:[UIColor clearColor]];
[label setTextColor:[UIColor whiteColor]];
[label setText:self.title];
[label sizeToFit];
[currentItem setTitleView:label];
[label release];
[navBar pushNavigationItem:currentItem animated:NO];
[currentItem release];
[mainView addSubview:navBar];
[navBar release];
self.view = mainView;
[mainView release];
However, my problem now is that, even if the custom title view is correctly added, it's not vertically centered with the NavBar. What I am missing?
Thanks!

Answer 1

You can use setTitleVerticalPositionAdjustment:forBarMetrics: in iOS 5 to change the title position, it works on normal title e.g.:
CGFloat verticalOffset = -4;
[[UINavigationBar appearance] setTitleVerticalPositionAdjustment:verticalOffset forBarMetrics:UIBarMetricsDefault];

Answer 2

You created you UINavigationBar with a height of 80 points, when a standard UINavigationBar has 44 pts. It probably position it centred it on a 44 pts based centre...
You can try to make a UIView with a height of 80 pts and add the UILabel centred inside it. (not tested, just a guess)