iOS push services: is an invisible push notification possible?

Question

I\'m building a iPhone application which depends data from an online database.

To update the data in the app i could check at a certain time interval if an update is ne

Answer 1

Use the delegate methods applicationDidRecieveRemoteNotification to tell the app to check in with the update service. Or you can have the app poll the update service durin applicationwillEnterForgound of you don't want to set up push notifications.