NavigationBar hides TableView in TabBarViewController - iphone

Question

I have a ViewController that Pushes a TabBarViewController. Inside that TabBar View Controller I have 4 tabs. Two of these tab bars are UITableViewControllers and the other two are ViewControllers. The first tab is a table view controller and is working fine, ie not being hidden by the navigation bar. The third tab, which is another TableViewController, is being partially covered by the navigation bar. The first section and first cell is being hidden underneath the navigation bar. Has anyone had this problem in the past or does anyone know a solution to this? I've tried a couple of things like resizing the frame size manually
self.tableView.frame = CGRectMake(10,10,self.view.bounds.size.width -20, self.view.bounds.size.height-20);
That did't seem to work. I tried AutoLayout as well and didn't work. I don't know what else to do. Anyone have any suggestions or ideas of how to tackle this.
Edit: I've tried the edgesForExtendedLayout but it is making my navigationbar a darker color. It animates the color change in the navigationbar, sort of like a loading bar.
Note: This is only happening in ios7. I just simulated it in iOS 6.1 and the navigationbar does not cover the table view controller at all, which is weird to me. Any one have any suggestions?
Edit #2: Noticing that this is an iOS 7 > problem i did the following but now the navigation bar has changed color to a darker color.
if([[[[UIDevice currentDevice] systemVersion] componentsSeparatedByString:#"."][0] intValue] >= 7)
{
if ([self respondsToSelector:#selector(edgesForExtendedLayout)])
{
self.edgesForExtendedLayout = UIRectEdgeNone;
self.extendedLayoutIncludesOpaqueBars = YES;
self.automaticallyAdjustsScrollViewInsets = NO;
}
}

Answer 1

In the viewDidLoad method of UITableViewController (assuming it's loaded with a call to the tabBarController) that is associated with the tabs use
if ([self respondsToSelector:#selector(edgesForExtendedLayout)]) {
self.edgesForExtendedLayout = UIRectEdgeNone;
self.tableView.contentInset = UIEdgeInsetsMake(0., 0., CGRectGetHeight(self.tabBarController.tabBar.frame), 0);
}

Answer 2

I fixed that with:
if ([self respondsToSelector:#selector(edgesForExtendedLayout)]) {
viewcontroller.edgesForExtendedLayout = UIRectEdgeNone;
viewcontroller.extendedLayoutIncludesOpaqueBars = NO;
viewcontroller.automaticallyAdjustsScrollViewInsets = NO;
}