USER_IDLE or USER_PRESENT event in adobe air for ios

Hi All,

Does anybody is having any idea that how can we detect the user Idle time in Adobe air based ios mobile application.

For a desktop based air project this can eaisly be defined by the below two events:-

1) flash.events.Event.USER_IDLE

2) flash.events.Event.USER_PRESENT

But its very painfull to know that these events are not going to work with the mobile applications.

If anybody is having any idea,please let me know.

Any help will be appriciated.

with Regards,

Shardul