@Override
    public void onAuthenticationError(int errMsgId, CharSequence errString) {
        if (!mSelfCancelled) {
            showError(errString);
            mIcon.postDelayed(new Runnable() {
                @Override
                public void run() {
                    mCallback.onError();
                }
            }, ERROR_TIMEOUT_MILLIS);
        }
    }
Called by {@link FingerprintManager} if the authentication threw an error.
lib/src/main/java/com/github/omadahealth/lollipin/lib/managers/FingerprintUiHelper.java