一、在同 .Git目录下创建.gitignore文件。在文件中加入如下内容：
*.xcuserstate project.xcworkspace xcuserdata UserInterfaceState.xcuserstate project.xcworkspace/ xcuserdata/ UserInterface.xcuserstate
二、退出xcdoe， 打开终端（Terminal），进入项目目录下。
三、在终端键入
git rm --cached [YourProjectName].xcodeproj/project.xcworkspace/xcuserdata/[ YourUsername].xcuserdatad/UserInterfaceState.xcuserstate
四、在终端键入
git commit -m "Removed file that shouldn't be tracked"
五、重新打开Xcode
git commit
git push