How do  you create a Custom bottom tab bar in iOS xib files?

In the application I am currently building for an undisclosed client (lets just say a major name in chocolate) they had a very custom menu (resembling a tab bar). However, some of the buttons were not intended to launch a new view. The interfaces were designed by another firm, and my job as an engineer is to implement it. I would have suggested another design to resemble a toolbar. Reasoning for this is that up until I knew (because things change) all the desired functionality I began to code it as a Tab Bar application. Then I was told that the interactions were changed so that 2 of the buttons caused actions to happen while in the same view. That meant I had to rebuild so that the app would pass through Apple's Human Interface Guidelines which state, "Don’t use a tab bar to give users controls that act on elements in the current mode or screen. If you need to provide controls for your users, use a toolbar instead (for usage guidelines, see “Toolbar”)." One of the "tabs" was then also specified to launch a video in full screen. Which, again, was something that was discouraged in the Human Interface Guidelines which state, 'Don’t remove a tab when its function is unavailable. If a tab represents a part of your app that is unavailable in the current context, it’s better to display a disabled tab than to remove the tab altogether. If you remove a tab in some cases but not in others, you make your app’s UI unstable and unpredictable." But rather than delay the project, I just made it happen. I cannot include a screenshot of the actual project, so I included something I threw together for this question. Basically you 1. Add a View 2. Add an ImageView (for background) 3. Add an ImageView along the bottom (to simulate the Tab Bar). Add the custom image. 4. Add the buttons (Round Rect Button). Make them a type "custom". Add an image to them. I will followup later elsewhere with how to best calculate the dimensions of the buttons. Ideally someone else can ask how to do it, then do the "Ask To Answer" from me.