Detect when Touch ID is being touched, no authentication

Question

I'm wondering if it's possible to detect when a user's finger is touching the home button on the iPhone 5S/6, without necessarily looking for an authentication. I don't need to verify any kind of biometric data, or even access the secure enclave at all, I just want to use it as another sensor on the phone.

In a similar way to how reachability works as of now on the iPhone, I'd want to just detect a touch on the sensor, not a button press.

Any ideas?

Answer 1

There is no public API for this. I looked on UIApplication for a private API, and couldn't find one of those either.