An immutable object that represents a collection of contacts.
- iOS 9.0+
- macOS 10.11+
- Mac Catalyst 13.0+
- watchOS 2.0+
A contact can be in only one container. CardDAV accounts usually have only one container whereas Exchange accounts may have multiple containers, where each container represents an Exchange folder.
CNContainer objects are thread-safe, and you may access their properties from any thread of your app.