I'm currently working on a user experience problem that involves a user's multiple devices (smart phone, tablet, laptop, etc.)
What I'm trying to accomplish is that the app "intuitively senses" when the user is on their laptop/desktop (as opposed to smart phone or tablet), and adjusts its behavior accordingly.
My question is: what sort of criteria would suffice to determine if a user is at their computer?
- Smart phone / tablet is connected to computer. (This method seems pretty strong but presents some nearly-insurmountable technical challenges, especially within Apple's walled garden.)
- Computer is on.
- Computer is not idle.