5. Getting Started with Address Book

The iOS Address Book frameworks have existed largely unchanged from their introduction in iOS 2.0 (then called iPhone OS 2.0). These frameworks were largely ported unchanged from their OS X counterparts, which have existed since OS X 10.2, making Address Book one of the oldest frameworks available on iOS. This legacy will become evident as you begin working with Address Book technology. It is largely seated on Core Foundation framework, which might seem unfamiliar to developers who have come over to Objective-C and Cocoa development after the introduction of the iPhone SDKs.

Why Address Book Support Is Important

When developing iOS software, you are running in an environment alongside your user’s mobile life. ...

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