UIPasteboard
Excerpt
UIPasteboard | Apple Developer Documentation
Overview
For sharing data with any other app, use the systemwide general pasteboard. For sharing data with another app from your team — that has the same team ID as the app to share from — configure an App Group. For more information about configuring an App Group, see Configuring app groups.
In typical usage, an object in your app writes data to a pasteboard when the user requests a copy, cut, or duplicate operation on a selection in the user interface. Another object in the same or different app then reads that data from the pasteboard and presents it to the user at a new location. This usually happens when the user requests a paste operation.
The general pasteboard and named pasteboards
The system…
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