bpipe | Bpipe - a tool for running and managing bioinformatics | Continuous Deployment library

I am trying to implement pagination in my application but I have not been successful in doing so.

I am using Firebase, specifically Firestore with the BLOC pattern alongside Built Value which I started using recently to make pagination easier.

I would really appreciate any help or referral links how to use these technologies together.

My application architecture is as follows:

I have tried to keep to the BLOC pattern as much as possible but this in turn has made it really difficult to paginate largely ,because of using built value as built value make it really difficult to use Streams and Futures. I have looked all over the Internet but I could not find any tutorial or docs to use built value with Firestore and BLOC specifically to paginate.

The problem is that when I do any of the CRUD functions for example delete an Category from a list, the Stream Builder is not updating the list despite the pagination and everything else working.

Currently I have tried using the a Listview builder by itself which obviously didn't work at all,so I moved to a Stream Builder and tryed both Streams and Futures(.asStream) but it is not updating.

Below is some of the code:

The model: