@Override
    public void onAuthenticationFailed() {
        showError(mIcon.getResources().getString(
                R.string.pin_code_fingerprint_not_recognized));
    }
Called by {@link FingerprintManager} if the authentication failed (bad finger etc...).
lib/src/main/java/com/github/omadahealth/lollipin/lib/managers/FingerprintUiHelper.java