If you're implementing child view controllers and want automaticallyAdjustsScrollViewInsets to work...

workaround.m

            // This ensures that the automaticallyAdjustsScrollViewInsets magic works
            // On our newly added view controller as well.
            // This triggers _layoutViewController which then triggers
            // _computeAndApplyScrollContentInsetDeltaForViewController:
            // which finally updates our content inset of the scroll view (if any)
            // rdar://19053416
            [self.navigationController.view setNeedsLayout];