iOSプロジェクトgitignoreファイルにファイルタイプの解釈が含まれています

iOSプロジェクトgitignoreファイルにファイルタイプの解釈が含まれています

# Xcode
.DS_Store
*/build/*
*.pbxuser
!default.pbxuser
*.mode1v3
!default.mode1v3
*.mode2v3
!default.mode2v3
*.perspectivev3
!default.perspectivev3
xcuserdata
profile
*.moved-aside
DerivedData
.idea/
*.hmap
*.xccheckout
*.xcworkspace
!default.xcworkspace

#CocoaPods
Pods
!Podfile
!Podfile.lock

!default.pbxuser   Xcode IDE 

!default.mode2v3  mode2v3 

*.perspectivev3
```
This is the file where XCode saves the preferences of your "perspective". Where you windows are, if your console is open, where it is on the screen.
Which groups are open in the side bar etc.
Basically everything you need that xcode looks the same when you open it next time.

There is another file name username.pbxuser. Xcode stores for example the code bookmarks in it.

You don't need them to compile the project. And you should not put them into version control either.
```
[Xcode projects — what is a “perspectivev3 file”](http://stackoverflow.com/questions/5223297/xcode-projects-what-is-a-perspectivev3-file)

   project.xcworkspace ：is a directory of files describing the workspace or projects. Although some of the answers here indicate it is unnecessary and should be ignored for source control, I don't agree, but it's going to be highly dependent upon how you use your environment. Generally, the contents of the project.xcworkspace directory contains the contents.xcworkspace data file, which lists the projects that are included as top-level entities in your project。

   xcuserdata ：You can safely delete the xcuserdata directories. It basically contains personal settings like breakpoints, user interface layout, open files, automatic snapshots configuration and so on。
   [iOS xcuserdata](http://www.cnblogs.com/wfwenchao/p/4624025.html)