UIApplication beginBackgroundTaskWithExpirationHandler question

Question

guys :) I have an iOS alarm app, which uses UILocalNotification-s to schedule the user defined alarms if the app enters background. Since this (in my implementation) can be a relatively long process, I need to make sure that the registering of the notifications is completed before the app goes inactive. I read that there is a method in UIApplication: beginBackgroundTaskWithExpirationHandler, which asks iOS for more time, so that it can complete its tasks, but I have no idea how to use it. These (void(^)(void)) parameters scare me :). I know it's too much to ask, but... if I have a method [self registerLocalNotifications], which registeres all local notifications, can you please point me how to make sure the method finishes before the app goes to background. Huge thanks!

Solution

This looks like good sample code where you can see the usage of blocks ^{} together with applicationDidEnterBackground: http://iphonesdkdev.blogspot.com/2010/04/local-push-notification-sample-code-os.html

Comments

[cpprulez]

Thank you! I'll check it out :)