在不同的层次结构中为自动布局视图匹配宽度

I am trying to build a spreadsheet like app which has a scroll view and "floating" headers on the top and left which do not scroll with the rest of the content. I have this implemented in a ScrollView using layoutSubViews to override the frames of the header UIViews, with all the scrolling in a single UIView:I am trying to build a spreadsheet like app whi