UIView under UINavigationBar on IOS7

Question

We\'re working on the transition between IOS6 and IOS7 and have the next issues, for the moment without solution:

The structure of our view is the next one:

Answer 1

Regarding 2. We integrated the UIRefreshBar component and after refresh the UITableView always move under the UINavigationBar

Make the NavigationBar not translucent, by default it is which allows views to scroll underneath it.