In this chapter, we have implemented an application that uses a toolbar and two table views backed by a mutable array that contains mutable dictionaries and arrays. The backing data was stored in iCloud rather than on the local computer so that multiple copies of the App running on different computers can access the data on iCloud and iCloud will push changes that occurred on one computer to the other.
Specifically, we covered what is iCloud and what entitlements are required to use iCloud. Then we looked at how to manage multiple table views and how to implement a toolbar. Next, we covered how to read and write key-value pairs to iCloud. We finished by looking at how to register for notifications of changes from iCloud and how to use those notifications to update our program data.
Now that we have spent some time looking at business applications and data synchronization we are going to move on to something a bit more fun and look at some of the multi-touch features of Mac OS X. Every...