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Learning Core Data for iOS: A Hands-On Guide to Building Core Data Applications by Tim Roadley

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14. iCloud

You never fail until you stop trying.

Albert Einstein

In Chapter 13, a manual approach to storing data ‘in the Cloud’ was demonstrated using Dropbox. In this chapter, automated data synchronization between user devices will be achieved using iCloud. Similar to Dropbox, iCloud is a web service that provides cloud storage. Once Core Data is integrated with iCloud, changes to data made on one user device will automatically be reflected on the user’s other devices. At the time of writing, neither Dropbox nor iCloud allows data to be shared between accounts. If an application requires the ability for multiple accounts to access the same data, custom web service integration will be more appropriate than Dropbox or iCloud. Likewise, if an ...

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