Xcode remember what folders were collapsed / opened

Question

I have a big iOS-project with many folders / groups. When I quit and restart Xcode, all folders in the Project Navigator are shown expanded, so I have to collapse most of them manually.

Is it possible to save the state of the Project Navigator, so that when Xcode restarts the same folders are collapsed / expanded as before?

Answer 1

The solution was to delete this file:

MyProjectName.xcodeproj > project.xcworkspace > xcuserdata > myusername.xcuserdatad > UserInterfaceState.xcuserstate

This file was recreated by XCode when re-opening the project.

Apparently that file got corrupted when XCode crashed. (Its size was 300 KB instead of the usual 10 KB).

To see the files right click on MyProjectName.xcodeproj, and choose Show Package Contents. You will find UserInterfaceState.xcuserstatein the subfiles.