Detecting syncing event for iOS

Is there any way if my iphone app can detect if the user is trying to sync the iphone d开发者_StackOverflow社区evice when the app runs? My app crashes a lot when this syncing occurs...

Your App Delegate receives a applicationWillResignActive: call, nothing more. You can't be sure if its because of syncing or because your user got a call.

About the crashes, make sure that you respond to memory warnings by freeing up as much memory as possible for the system, this should solve the problem in 99% of the cases.