The Core iOS Developer’s Cookbook, Fifth Edition

Storing Common Types

Pasteboards are further specialized for several data types, which represent the most commonly used pasteboard items. These are colors (not a property list “value” object), images (also not a property list “value” object), strings, and URLs. The UIPasteboard class provides specialized getters and setters to make it easier to handle these items. You can treat each of these as properties of the pasteboard, so you can set and retrieve them using dot notation. What’s more, each property has a plural form, allowing you to access those items as arrays of objects.

Pasteboard properties greatly simplify using the system pasteboard for the most common use cases. The property accessors include the following:

string—Sets or retrieves ...