iOS Components and Frameworks: Understanding the Advanced Features of the iOS SDK

Finishing a Task in the Background

To execute a long-running task in the background, the application needs to be informed that the task should be capable of running in the background. Consideration should also be given to the amount of memory needed for the task, and the total amount of time needed to complete the task. If the task will be longer than 10 to 15 minutes, it is very likely that the app will be terminated before the task can complete. The task logic should be able to handle a quick termination, and be capable of being restarted when the app is relaunched. Apps are given a set amount of time to complete their background tasks, and can be terminated earlier than the given amount of time if the operating system detects that resources ...