苹果官方IOS Demo-Group

一个简单的Group ABUIGroups shows how to check and request access to a user’s address book database. It also demonstrates how to retrieve, add, and remove group records from the address book database using AddressBook APIs. It displays groups organized by their source in the address book. This sample also shows how to retrieve the name of a group and of a source. Build Requirements: iOS SDK 6.0 or later Runtime Requirements: iOS 6.0 or later Using the Sample The application displays a list of groups organized by sources in the address book. It first prompts a user for access to their address book database. It displays existing groups and the Add and Edit buttons if the user has granted access. Tap the Add button to add a group to the default source in the address book. Tap the Edit button to delete a group from a source. Packaging List ABUIGroupsAppDelegate The application's delegate to setup its window and content.