Is there a way to create custom Tabbar?

I'm creating an application for both iOS and android devices. I'm using Alloy MVC framework for this project. I was using tabBar for my project and I realised that android tabBar appears on top which is what I don't want for my application.

I've 4 views or 4 screens to display corresponding to each tab. I've created the custom tabBar but i want the tabBar and the title Bar to be there all the time. When a tab is clicked only the view in the centre should change. I don't know how to do this. Please Help.

Thank You.