问题
I have been using Xcode 4 for 2 weeks and I noticed that I don't get code completion macros for if-else and switch statements.
Like this article describes: http://macdevelopertips.com/xcode/xcode-code-completion-macros.html
I had it working in the beginning, but it suddenly stopped.
回答1:
Have you tried deleting the project's derived data (which contains the project index used by Code Sense)?
To do so, open the organizer (Window -> Organizer), then the Projects tab. Select your project then hit the delete button next to the derived data path (to the right). Confirm and let it re-index your project.
来源：https://stackoverflow.com/questions/6157782/xcode-4-no-code-completion