UIButtons at the bottom of UIScrollView not working

Question

I created a UIScrollView in my storyboards and have added 12 UIButtons in a container View which is inside the UIScrollView.

when running on the iPhone 5s simulator,

Answer 1

when using scrollview in storyboard with autolayout. it is usually set up using a content view inside the scrollview that will contain all the other views (e.g. buttons, labels, etc.) the content view are usually set to have equal height and equal width.

to make your content view expand it's height, you need to add a height constraint then assign it to an outlet so you could easily manipulate it's value with in your code. then set the content view's height constraint priority to 1000 ("required") and set the content view's "equal width to:view" constraint priority to 750 (high).