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Editorial Team
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Asked: 2026-05-15T00:57:28+00:00

My iPhone SDK and Objective-C learning is moving ahead quickly, thanks to several great

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My iPhone SDK and Objective-C learning is moving ahead quickly, thanks to several great books and online help (including this one). But I do have some basic questions due to what I already know that will be answered eventually, but I’d rather get a heads-up now if possible 🙂

  • Are there equivalents for LayoutManagers in Cocoa Touch? Are they used, or is absolute positioning used instead? I have seen some of the layout stuff in IB, but I’m not sure what to look at in code.
  • Aside from using the IB, are UIControls added directly to UIView instances using the addSubview (like add in Swing)?

These are just two concrete questions that I’ve thought of just now, but I would love to see any translation of Swing concepts to Cocoa Touch.

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  1. Editorial Team

    If you really want to code up an app like it’s a website, Three20 is the place to start. The framework provides a URL-based navigator component roughly equivalent to a front controller called TTNavigator.

    To directly answer your question about LayoutManager, there is a point where just about everything devolves into creative use of UITableView. It’s so customizable and flexible that you can do just about anything. When that breaks down, it’s parent UIScrollView is usually a good place to start because it has all the acceleration / bouncing baked-in.

    The second question is yes. UIViews are added to UIViews using - (void)addSubview:(UIView *)view. To remove them, use - (void)removeFromSuperview from the child view.

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