22. Syncing with iCloud
At this point PhotoWheel is pretty useful—users can work with their photos in a variety of ways. But the app is limited to a single device. It is increasingly common for people to have more than one iOS device and often a Mac as well. Wouldn’t it be great if PhotoWheel could sync its data across multiple devices so that users could have their app data available on any of their devices? In this chapter we’ll expand PhotoWheel to use Apple’s iCloud service to sync photos and albums to different devices via the Internet. The technique we’ll cover makes Core Data into a cloud-enabled data storage system.
Syncing Made Simple
In earlier releases of iOS, syncing data from one device to another was difficult. There were no standard, ...
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