Xcode 4 Build Settings Display Abnormal

Normal Display (Xcode 4.2 4D199, Mac OS X Lion):

normal display

Abnormal Display (Xcode 4.2 4C199, Mac OS X Snow Leopard):

abnormal display

It occurs in one day I woke up, I don't know why and how to solve it. and I have reinstall Xcode and restart system many times.

Solution

I think you may be looking for the "Show Values" / "Show Definitions" toggle in the "Editor" menu. Depending on the version of Xcode, the menu choice may be labeled "Show Raw Keys & Values", but still under the "Editor" menu.