Returns the user record ID associated in the user’s contacts with the phone number.
- iOS 10.0+
- macOS 10.12+
- Mac Catalyst 13.0+
- tvOS 10.0+
- watchOS 3.0+
The phone number used to locate the user.
The block to execute with the results. Your block must be capable of executing on any thread of the app. This block returns no value and takes the following parameters:
Use this method to retrieve the ID of a user that is known to the current user. The user you are searching for must meet the following criteria:
The user must be in the current user’s address book.
The user must have run the app.
The user must have granted the
userpermission for this container.
This method searches for the user asynchronously and with a low priority. If you want the task to execute with a higher priority, create a
CKDiscover object and configure the desired priority.