xcode git 忽略user interface state文件

1. 退出xcdoe， 打开终端（Terminal），进入到你的项目目录下

2. 在终端键入  git rm --cached [YourProjectName].xcodeproj/project.xcworkspace/xcuserdata/[YourUsername].xcuserdatad/

UserInterfaceState.xcuserstate
3. 在终端键入  git commit -m "Removed file that shouldn't be tracked"

4. 在.gitignore文件中加入如下几行

# Xcode
.DS_Store

*.xcuserstate
*.xcodeproj/project.xcworkspace
*.xcodeproj/xcuserdata

project.xcworkspace  
xcuserdata
UserInterfaceState.xcuserstate  
project.xcworkspace/  
xcuserdata/  
UserInterface.xcuserstate 

5. 重新打开Xcode commit, push。