Paging library - Boundary callback for network + db with API taking page and size

Question

Short question:

What is the correct way to handle database + network on the Paging library from Architecture components, using an API that uses page + s

Answer 1

I have a similar API (pageNum + size), I have 2 extra fields in my data class, pageNum and pageSize with defaults 1 and PAGE_SIZE respectively.

If you're using Network+DB then you'll have onZeroItemsLoaded and onItemAtEndLoaded, In onZeroItemsLoaded send pageNum and pageSize as it is, and in onItemAtEndLoaded increment pageSize by 1 and then send.

Let's say you have a method fetchData(pageNum, pageSize) when you receive result in this just update the pageNum and pageSize accordingly in each item of this page.