CNGroup
An immutable object that represents a group of contacts.
Declaration
class CNGroupOverview
Contacts may be members of one or more groups, depending upon their accounts.
CNGroup objects are thread-safe, and you may access their properties from any thread of your app.
Topics
Getting the Group Information
Generating Search Predicates for Groups
predicateForGroups(withIdentifiers:)predicateForGroupsInContainer(withIdentifier:)predicateForSubgroupsInGroup(withIdentifier:)