concept CloudKit in category ios

This is an excerpt from Manning's book iOS Development with Swift. Login to get full access to this book.

You’ll need to import CloudKit, because CKRecord comes from the CloudKit framework.

import CloudKit

copy

To identify a record type, it needs a name.

12.3. Storing data using CloudKit

CloudKit is a service provided by Apple for storing data as records in a database in iCloud, ready to be accessed by your app from different devices.

Unlike the ubiquitous key-value store, CloudKit doesn’t perform any local storage. It’s up to you to determine whether your app requires an internet connection to access CloudKit data, or whether you want to maintain local storage in addition to CloudKit, and manage synchronization of the two. To keep things as simple as possible, in this section we’ll explore storage of data in iCloud using CloudKit without any local storage.

The same way the file system for your app on the device is sandboxed, your app has a sandboxed area in iCloud, called a container. When you activate iCloud for your app, Apple automatically creates a container for it, ready to store data using CloudKit.