Question

here is my problem.
I have an application that uses a UITabBar, and, on some Views some NavigationControllers, and the bars are all Black Opaque. As I have more than 6 tabs, it opens the UIMoreListController, so far so good, I can change the color of the Navigation bar there.
My problem is when user clicks on Edit button to organize the toolbar on the moreListController. The title bar (which I do not know if it is a toolbar or a navigationBar) is blue. I would like to change it to black opaque. anyone knows how to do it??
Best regards!
Marcelo Marsson.

Answer 1

I did this in a previous project (however, I must stress the app was never released) by implementing the UITabBarControllerDelegate protocol, and this method in particular:

- (void)tabBarController:(UITabBarController *)tabBarController willBeginCustomizingViewControllers:(NSArray *)viewControllers
{
    UIView *editView = [[[self.tabBarController view] subviews] objectAtIndex:1];
    UINavigationBar *modalNavBar = [[editView subviews] objectAtIndex:0];
    [modalNavBar setBarStyle:UIBarStyleBlack];
}

Of course, this is extremely prone to breaking, because I’m assuming that the items in the subviews array at those indexes are what I expect them to be.

If you’re going to try this method, I would proceed with caution and do as many checks as you can before going ahead, e.g. check the bounds of the array before accessing certain indexes – check if the objects at those indexes respond to the method you’re about to send to them, and so on.

Again, I don’t think I could recommend this approach for a shipping app, but I don’t know of any other way to do this prior to iOS 5 with it’s UI customisation APIs.