A set of custom code snippets for Xcode. More see http://nshipster.com/xcode-snippets/, Drag snippet to xcode code snippet library,then look the new created file in ~/Library/Developer/Xcode/UserData/CodeSnippets. Open "xxx.codesnippet", it's a plist file.
Install manually by copy-pasting in Xcode or with the ACCodeSnippetRepository Xcode Plugin.