UITableView Cannot be Scrolled all the way to the bottom

I am just curious. I make a few UITableView. In all cases, if I scroll all the way to the bottom it bounce up again.

So lower portion of the table cannot be accessed. How should I fix this?

I mean exactly that I asked. One of the solution is that the table size is not right.

And that is exactly the problem. I have to simulate the size for the toolbar below.

Thank you for those who answer. No thanks for those who close this good question.