android-adapters | Example project how to use Avocarrot SDK

I solved this by adjusting the architecture slightly. It seems there is some issue with StaggeredGridLayoutManager when mixed with:

1. The dynamic ability of RealmRecyclerView to update itself automatically during bulk adds or deletes.
2. An adapter that attempts to limit what is shown by returning a count from getItemCount() that is not equal to the current list count.

I suspect this has to do with how ViewHolder instances get created and positioned by the layout manager, since this is where the error is pointing to.

So what I did instead is rather than have the adapter return a value that can be less than the actual count of the list being managed at any point in time, I changed the realm query to use the .limit() capability. Even when the query returns less than the limit initially, it has the nice side effect of capping itself at the limit requested as the list dynamically grows from the bulk add. And it has the benefit of allowing getItemCount() to return whatever the current size of that list is (which always works).

To recap - when in "Month View" (where I want the user to only see a max of 5 images like the screen shot above), the first step is to populate the adapter of the top level RealmRecyclerView with the result of a DISTINCT type query which results in an OrderedRealmCollection of Media objects which correspond to each month from each year in my media Library.

Then in the "bind" flow of that adapter, the MonthViewHolder performs the second realm query, this time with a limit() clause: