We are trying to implement paging in Leanback VerticalGridSupportFragment with Architecture Components Paging Library. Leanback on it's own doesn't have any sort of out-of-box compatibility with Paging Library so we extended it's ObjectAdapter class and managed to implement append and clear operations quite easily but we are having a hard time trying to make modify operation work. During content modification operation, Paging Library's PagedList class computes the diff using AsyncPagedListDiffer which internally uses PagedStorageDiffHelper which is a package-private class and …