Change frame size of table programmatically

I am trying to do the example on http://ift.tt/1GyxexT where I am putting json values. I used navigational bar but then the header data is getting hidden. I tried changing the frame size in XCMultiSortTableView.m file but the position of header doesn't change. I am getting output as

But I want the output where years is displayed along with navigational bar as

Please do reply.