WeIio

Thanks for your answer. You seems not really understand what I say. In your codes,there is a line :boolean isCancelled = false; So If I call isAuthenticationCanceled before start authenticate...

@jariz _[AssertionError. This is because promise is sometimes null when errorCode == FINGERPRINT_ERROR_CANCELED]_ Maybe nathan-k said is why I asked you to change `isCancelled` variable. When cancel authenticate which is...

@nathan-k Thanks. I had figured out what he said. He had give me a solution that how to judge authentication status by keeping a reference to the promise returned by...