iOS Retrieve iPhone system log to collect phone usage

[gscalzo]

Hi all,
I wonder if there is an official way (no jailbreak) to know when a system application (call, sms, ipod etc) has been started and closed.
My aim is to produce an application which collects basic usage of the iPhone and rearrange it in a daily report (how many hours calling, how many hours listening to music, etc).

For doing this, it needs intercept the life cycle of an app in same way: is this possible?

Any clues?

Thanks in advance.

-G-

 

[robbieduncan]

There is no way to do that.