Designing inside a scrollview in xcode 4.2 with storyboards

Question

I have a vertically scrolling uiscrollview - imagine an \'about this app\' page of a tab bar app which goes on a bit and requires a scrollview. It only contains a few images

Answer 1

I've been struggling with this for a while now, and every single thing I've tried has failed.

Specifically, What I am trying to achieve is a freeform sized modal dialog with a scrollable view containing a container for another view. I have had a lot of varied results, including occasionally having it working correctly. Most often I get it looking exactly correct, but with no scrolling.

In finally downloaded Dickey Singh's code, which worked perfectly but had nothing special. (Excellent clean solution BTW). So, I added a container view to it, exactly as I had in my code, and it broke!

After some experimenting, I worked out what is going on. Just bear with me.

1) Using Auto Layout, the size of the scroll view seems to dictate what the scrolling bounds will be. Setting "contentSize" in "USer Defined Runtime Attributes" seems to have no effect on this, and neither does setting "contentSize" or "bounds" in "viewWillDisplay" or "viewDidLoad". Thus if the initial size of the scroll view is 800x800, that will be all the space that can be displayed. For this reason, when I want a scrollable region, I create a container view and then put the scrolling view inside the content.

2) Without Auto Layout, setting "contentSize" in "User Defined Runtime Attributes" works, as does by setting it programmatically in "viewDidLoad". I prefer to use "User Defined Runtime Attributes" because it keeps the size with the layout. This solution allows you to use scrolling view with more flexibility, since it can be any size at design time.

3) Regardless of Auto Layout, if any view within the scrolling region exactly matches EITHER the horizontal or vertical frame bounds, then the scroll view ceases to function as a scroll view. This applies to my own code and to Dickey Singh's code in every possible configuration that I have tried.

I have no idea what is causing (3), but it is clearly a bug.

I hope this helps everybody out there who is struggling to use scroll view. I imagine that some people are using them without any problem, and some (like me) have had noting but problems with them.