SwapiPeoplePagedListProvider.kt

class SwapiPeoplePagedListProvider(private val factory: DataSource.Factory<Int, Person?>) : PagedListProvider<Person?> {

    override fun provide(): LiveData<PagedList<Person?>> {

        return LivePagedListBuilder(factory, PagedList.Config.Builder()
                .setEnablePlaceholders(false)
                .setPageSize(20)
                .setInitialLoadSizeHint(20)
                .build()
        ).setFetchExecutor(createFetchExecutor())
                .build()
    }

    private fun createFetchExecutor(): ExecutorService {
        val threads = Runtime.getRuntime().availableProcessors() + 1
        return Executors.newFixedThreadPool(threads)
    }
}