Book Image

RestKit for iOS

By : Taras Kalapun
Book Image

RestKit for iOS

By: Taras Kalapun

Overview of this book

<p>RestKit is an iOS framework for streamlining communication with web services, and it relies on the AFNetworking library that is used by thousands of app developers. It has an interface that is elegant and well designed, and it provides a powerful object-mapping engine that integrates well with the CoreData database. RestKit for iOS will teach you everything from loading a simple list of objects to creating a fully-featured app.<br /><br />RestKit for iOS delivers constructive tools and insights into app development that will benefit any app developer. The book starts with a simple example and then moves on to more complex ones as your knowledge increases. By the end of the guide, you will be able to build a fully-featured app that uses RESTful web services and performs CRUD object manipulation.<br /><br />RestKit for iOS will provide you with all the information you need to boost the development process of both simple and complex apps. Once you have executed a simple example and reviewed the basic theory, you will move on to more advanced concepts with descriptions of real-life scenarios and how to overcome bottlenecks. RestKit for iOS is full of real-life examples that show you how to simplify data loading, basic and advanced object mapping, metadata mapping, and routing. This book also teaches you about routing, RESTful object manipulation and synchronization, integration with the user interface, and caching</p>
Table of Contents (13 chapters)

Background processing


Sometimes we need to download large amount of data, or process a long operation. However, when the user clicks on the Home button on his iOS device, the iOS operating system will move the application from the active state to the inactive state. This can also occur for certain types of temporary interruptions, such as an incoming phone call or an SMS. The OS will notice the AppDelegate application's applicationWillResignActive: method before it begins to transition the application to the background state. Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.

AFURLConnectionOperation and its subclasses have the pause method, which will pause the operation, and resume, which will resume the operation. Depending on an operation class, the pause/resume method can be overridden and can be made to work differently. For example, in AFURLConnectionOperation, the resume method will restart...