Today, virtually every non-trivial i Phone and i Pad app must manage data-quickly, smoothly, reliably, and with minimal impact on the CPU to conserve battery life. Core Data, Apple’s ready-made data persistence layer, can help you achieve all these goals. In Core Data for i OS, two leading i OS developers teach you the entire Core Data framework from the ground up. Writing for intermediate-to-advanced i OS developers, Tim Isted and Tom Harrington thoroughly explain how Core Data is used on i OS devices, introduce each of its primary classes, and show how they interact to provide amazing functionality with minimal configuration. You’ll learn how to store, fetch, and validate data; provide it efficiently to views; and much more. Isted and Harrington first give you a firm grounding in the technology, and then present real-world examples. They present multiple sample projects, as well as a start-to-finish, chapter-length case study. Coverage includes * Understanding Core Data’s features, classes, and interactions * Using Core Data in MVC-based i OS app development * Mapping relational data to object models, and building them with Xcode 4’s Data Modeler * Working with managed objects and using UITable View to display them * Creating predicates to match numbers, data, and objects * Maintaining compatibility across versions of an app’s data model * Tracking managed object contexts across view controllers * Using Core Data’s automatic Undo functionality * Integrating abstract entities, entity inheritance, and multiple view controllers into a complete app * Optimizing for i OS devices’ tight memory limits * Diagnosing and fixing common Core Data problems Introducing Addison-Wesley’s new Core Frameworks Series, written for experienced i OS developers by world-class Mac and i OS developers, these are the first comprehensive, code-rich reference guides to Apple’s Core Frameworks.
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