by Michael Morrison | Released November 2010 | ISBN: 9781449301927

If you've been paying any attention at all to iOS 4 on the iPhone, you know multitasking is a big deal. But multitasking in an iPhone world isn't anything like multithreading or traditional multitasking. In this O'Reilly Breakdown, experienced iOS 4 programmer Mike Morrison explains what multitasking is, and teaches you how to get your own apps multitasking. You'll also build backward compatibility to support the still-huge number of devices that don't support multitasking.As you build a multitasked app, you'll learn how much (or how little!) time you have to operate in a background mode on an iPhone. Morrison also discusses at length the types of tasks well-suited for multitasking, and the types that just don't fit Apple's paradigm. By the time you're through this Breakdown, you'll be prepared not to just code for iOS 4, but to optimize your app for multitasking.The experts in the O'Reilly Breakdown live video series not only break down the concepts of difficult and complex subjects, they also demonstrate practical implementation and use. Each episode features an experienced programmer, developer, or software designer working on real-world challenges, ranging from iPad user interface design and multi-tasking on Android phones to caching in cloud-based applications. Show and hide more

1. Supporting Multitasking on the iPhone 00:24:43
2. What is Multitasking in iOS4? 00:13:13
3. Supporting App Persistence without Multitasking 00:05:53
4. Refreshing App Data after a Long Suspension 00:15:31
5. Completing a Task in the Background 00:18:51
6. Confirming Completion with a Local Notification 00:14:04
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