Added errMsgId parameter to FingerprintAuthenticationException

[o-vitaliy]

Added errMsgId to be able to filter exceptions which are not have to be handled

[Mauin]

I'd be interested to hear which kind of errors you want to filter? What is the use case?

[o-vitaliy]

I have several use cases
In the first case an authentication is available only while a dialog is shown. When user closes the dialog, I call fingerprintDisposable.dispose() and I get exception FINGERPRINT_ERROR_CANCELED in onError callback. I don't what to give any feedback to user when authentication is canceled, and I want to skip this exception.

And in the second case when I get FINGERPRINT_ERROR_LOCKOUT I have to offer to user other way to sign in in the application

[Mauin]

Interesting. It might make sense including the errMsgId in the Exception, however:

• I'm currently not seeing the FINGERPRINT_ERROR_CANCELED message in onError when cancelling the fingerprint operation by calling .dispose(). Which version of RxFingerprint are you currently using?
• The user should always have the ability to fall back to another way of signing into the application as defined by Google's guidelines.

[LosDanieloss]

It's been some time since the last activity in this PR. Can or maybe when can we expect a new version with this change? It would have been a pretty useful addition.

[TerryJung]

is there any changed ?