InterfaceBuilder，更改视图层次结构并保留约束

Question

I have

viewcontroller - scrollview - child views

I want to change it to

viewcontroller - view - scrollview - child views
                    \
                     - fixed bottom button

There are many constraints created for (scrollview - child views).
What's the recommended way to change the hierarchy?

Answer 1

I believe you have:

Just copy your scrollView to another viewController. Then replace your scrollView with UIView and finally copy back scrollView as a subView.