CristianMG

  imageLoader.resource {
            resource { backgroundDrawable }
        }.loadBackground(actionButton)

CristianMG

        // From resource
        imageLoader.resource {
              resource { backgroundDrawable }
          }.loadBackground(actionButton)

        //From network
        imageLoader.network {
            url { FAKE_IMAGE_URL }
            error { PLACE_HOLDER_ID }

CristianMG

@RunWith(AndroidJUnit4::class)
class TestImageLoader : AutoCloseKoinTest() {

    private val imageLoader: ImageLoader by inject()

    @Before
    fun before() {
        loadKoinModules(testModule)
    }

CristianMG

class ImageLoader(val context: Context, val networkLoader: LoaderImageNetwork) {

    fun network(init: FromNetwork.() -> Unit): FromNetwork {
        return FromNetwork(init)
    }


    fun resource(init: FromResource.() -> Unit): FromResource {
        return FromResource(init)
    }

CristianMG

   
    @Transaction
    @Insert(onConflict = OnConflictStrategy.REPLACE)
    fun insertAll(list: List<CharacterEntity>): Completable

    @Query("""
            SELECT * FROM character ORDER BY name ASC
            """)
    fun getAllPaged(): DataSource.Factory<Int, CharacterEntity

CristianMG

private fun initAdapter() {
    rvCharacters.layoutManager = layoutManager
    rvCharacters.adapter = adapter
    rvCharacters.setHasFixedSize(true)

    viewModel.dataSource
        .observe(this, Observer {
            adapter.submitList(it)
        })

CristianMG

class MainViewModel(
    private val characterRepository: CharacterRepository
) : ViewModel() {


    private val listing: LiveData<Listing<CharacterModel>> by lazy {
        liveData(characterRepository.getListable())
    }

    private val boundaryCallback = switchMap(listing) { it.getBoundaryCallback() }!!

CristianMG

override fun getListable(): Listing<CharacterModel> {
    return object : Listing<CharacterModel> {

        /** Create the boundary callback **/
        val bc: GenericBoundaryCallback<CharacterModel> by lazy {
            GenericBoundaryCallback(
                { dao.deleteAll() },
                { character(it, SIZE_PAGE) },
                { insertCharacters(it) },
                SIZE_PAGE

CristianMG

/**
 * For a clean architecture
 * encapsulated all methods for paginate in this class
 *
 * For more information
 * @see https://github.com/googlesamples/android-architecture-components/blob/master/PagingWithNetworkSample
 **/
interface Listing<T> {
fun getBoundaryCallback(): LiveData<GenericBoundaryCallback<T>>
 fun getDataSource(): LiveData<PagedList<CharacterModel>>

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override fun characters(offset: Int, sizePage: Int): Single<List<CharacterEntity>> {
  val ts = apiInf.ts
  return retrofit.create(NetworkCalls::class.java)
  .getCharacters(ts, apiInf.publicApiKey, apiInf.getHash(ts), offset, sizePage,"name")
  .subscribeOn(Schedulers.io())
  .map { it.getDataOrError().results }
 }