What if there is navigationBar present?

[kyco16]

I have a UIViewController inside a UINavigationController as well as UITabBarController. I have 2 UIViews, one being the month name and the other being a weekly view. I obviously have a navBar that contains 3 UIBarButtonItems. How would I go about configuring this flexible height bar to work with the navBar and my two UIViews, which are all set in the storyboard?

[bryankeller]

On the view controller that you want to use this, you'd have hide the built in navigation bar and programmatically add a BLKFlexibleHeightBar.

If you absolutely need the built in navigation bar with bar button items (rather than a BLKFlexibleHeightBar with subviews), then this solution might not be the best one for your needs.