UIScrollView + Centered View + Ambigous Scrollable Content Size + many iPhone sizes

Question

I have:

• application, that should work in landscape and portrait mode.
• view with full-size scroll view on top.
• some view inside scroll view wi

Answer 1

Problem :

1. The warning is telling us that the the content size of the scrollview depends on its subviews.
2. while your subview don't have any strict rule of position and size (no fixed constraints) it will confuse nib generated scrollview content size.

Solution :

1. Make only one subview as a 'contentView' for scrollview.

2. Add strict (fixed) constraints to that 'contentView'.

   Best practice : equal width and height to its scroll view.

3. Add all other subviews and constraints to your 'contentView'.