问题
I am new to beacons and I'm having some troubles with Google Nearby Message API. I did as it was said on their page (https://developers.google.com/nearby/messages/android/get-beacon-messages) but it doesn't get any attachments from the beacons.
It connects to the Google API client, it successfully subscribes but it never gets to "onFound" or "onLost". I am able to successfully register the beacon and sea it in "Beacon Tools" app.
来源：https://stackoverflow.com/questions/55088217/not-able-to-get-beacon-attachment-data-using-nearby-google-api-on-android