How to implement with remote data on tying?

[sopharasum]

How do we implement this library with keyword typing on request to the server?

[hanggrian]

I'm thinking a lot about this too. But can't yet find an API that doesn't stray away too far from how native AutoCompleteTextView should work.

Also, should this hypothetical server request API be a simple listener that returns boolean (username/mention has been found or not), or complete with full-fledged REST client with Retrofit/OkHttp?