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Is it possible for two iPhone apps to communicate with each other by any means like sending messages etc?
EDIT: Also is there any way a system app can communicate with our app?
For example: If I want to play a sound when I receive a phone call, then is it feasible?
Thanx in advance.
Do you mean in realtime? On the same device?
Of course there are uncountable ways to do IPC (pasteboard,
-[UIApplication openURL:], via a web-service). The best way to send data depends on the actual use case.For now two apps cannot run at the same time, so realtime communication would not be possible on one device.