iPhone : Running services in the background
问题 Having a look around, am I correct in thinking that the only type of background services are audio, voip and location services and so that if I wanted to communicate with a server I have to use push notifications. This means that badges are only uses for push notifications. Update: I want to check for updates on the server every 5 minutes or so. So the device is checking the server, not the server pushing to the device. I suppose email is an example. It polls the server. Thanks Simon 回答1: You