Grand Central Dispatch, Background Processing, and You
If you’ve ever tried your hand at multithreaded programming, in any environment, chances are you’ve come away from the experience with a feeling of dread, terror, or worse. Fortunately, technology marches on, and Apple has come up with a new approach that makes multithreaded programming much easier. This approach is called Grand Central Dispatch, and we’ll get you started using it in this chapter. We’ll also dig into the multitasking capabilities of iOS, showing you how to adjust your applications to play nicely in this new world and work even better than before.