Which function is called when iPhone app is terminated?

Question

I\'m working on a project in Xcode version 4.2.1 and in iOS 5.0. I\'m wondering which function will be called when you completely terminate an application, which means even

Answer 1

The documentation here spells out the behavior for this case.

In short, you'll only receive the applicationWillTerminate: message if the app is running (either in the foreground or background) when it's terminated. So, unless your app is running in the foreground or in one of the long-running background modes (e.g. VoIP, Audio, or a long-running task indicated by beginBackgroundTaskWithExpirationHandler) it will transition from the background state to the suspended state fairly quickly. In this case, you'll never receive the applicationWillTerminate: message.