Database Reference
In-Depth Information
Chapter 7: Syncing with iCloud
By Saul Mora
Thus far, the tutorials in this topic have walked you through Core Data as a locally
persistent storage mechanism—that is, Core Data with only a single store on a
single device for a single user process. Core Data and its predecessor, EOF
(Enterprise Objects Framework), have worked this way since their inception.
However, the world has changed a bit since then. Users have multiple devices and
want—even expect!—their data to be synchronized between all of them. This
usually happens over what is mystically called “The Cloud.”
This chapter covers the steps necessary to sync a Core Data store using Apple's
iCloud. You'll update the app from the previous chapter to sync to iCloud and then
see how changes make it back and forth between two running copies of the app.
Note
: You'll need a paid iOS developer account to set up and test iCloud-
enabled apps. Make sure your account is in good standing and that you have
your iTunes Connect login information handy before continuing.
