Question: In my application. I have to use `UISplitViewController` and I want to do add `UISplitViewController` To `UINavigationController` but I can't do this.

I also know that inheritance of `UISplitViewController` is not possible. but it very important for me to add in `UINavigationController`. 

Thanks in advance :)

Answer: 
**Note**: a UISplitViewController must be the root view of an app (or perhaps more specifically, a window). It can not live inside a UINavigationController or anything else.

refer [can-a-uisplitviewcontroller-be-the-root-controller-in-a-uinavigationcontroller](https://stackoverflow.com/questions/3723342/can-a-uisplitviewcontroller-be-the-root-controller-in-a-uinavigationcontroller) link
I've been able to do this using the open source [MGSplitViewController](http://mattgemmell.com/2010/07/31/mgsplitviewcontroller-for-ipad/).