xcode - How do you use auto layout in a scroll view?

Question

So I'm using a UIScrollView in a view controller in the latest Xcode. I have buttons inside the scroll view. When I run the application, the scroll view disappears. Can anyone tell me what is causing this and how the auto layout tools work?

Answer 1

Follow these steps,

1. Take scroll view and set constraints (leading, trailing, top, bottom) with respect to the parent view. And set some background color to it so that it will visible at run time.

2. Take UIButton and place it over scrollview, and then set constraints for your button (leading, trailing, top) with respect to the scroll view, and also set the width and height constraints for button ,and also some background color to button so that it will visible at runtime.

Note: The hirearchy of your contents should be like this- -parentView -ScrollView -button

please let me know if anything is not clear.

Thanks.