iPhone Recalculate Scroller Content Height?

I am adding a bunch of boxes into a UIView inside of a UIScrollerView. The content of the UIView goes beyond the bottom of the device's screen and should cause the whole scene to scroll.

However, thi开发者_StackOverflows isn't happening. The content gets added but the scene will not scroll. I assume it has to do with UIKit not automatically resizing the UIView container to match the overflowed content (I can understand why), so I tried setting the new bounds rectangle with [container setBounds: CGRectMake(0, 90, 768, 230*20)], with the 20 being the number of boxes (the height of each is 230). When I do this, nothing appears at all...

Anyone know why the content doesn't reappear or does anyone have another solution for making the UIScrollView scroll?

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You should set the contentSize of scrollview, to match your UIView's size.

Please see

http://developer.apple.com/library/ios/documentation/UIKit/Reference/UIScrollView_Class/Reference/UIScrollView.html#//apple_ref/occ/instp/UIScrollView/contentSize