There are two ways you can get the scrolling to work.
Approach 1 (with code):
1) Pin UIScrollView to the sides of its parent view, as mentioned below.
2) Set content size of your scroll view in viewDidLayoutSubviews:
- (void)viewDidLayoutSubviews {
self.MainScroll.contentSize = CGSizeMake(320, 1800);
}
Approach 2 (pure IB, no code required):
1) Setting contentSize is not required if using AutoLayout. You need to pin your UIScrollView to the parent view as mentioned below:
2) Then add another UIView inside UIScrollView to act as a content view and pin it to the UIScrollView and move all controls inside this content view:
3) Pin content view to its parent scroll view as mentioned below:
4) Set your UIViewController’s Simulated Metrics to Freeform (this is important):
5) Size your content UIView to your desired height (obviously important too):
Apple article explaining UIScrollView and AutoLayouts:
https://developer.apple.com/library/content/technotes/tn2154/_index.html