hiteshchopra11

class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            PreviewParameterDemoTheme {
                Greeting(name = "viewers")
            }
        }
    }
}

hiteshchopra11

suspend fun fetchImages(): Result {
    return withContext(Dispatchers.IO) {
      try {
        val result = ImageService.create().getImages()
        Result.SuccessWithData(result)
      } catch (exception: Exception) {
        Result.Error(exception)
      }
    }
  }

hiteshchopra11

public class HttpClient(
    public val engine: HttpClientEngine,
    private val userConfig: HttpClientConfig<out HttpClientEngineConfig> = HttpClientConfig()
) : {

   init {
        with(userConfig) {
            config.install(HttpRequestLifecycle)
            config.install(BodyProgress)
            if (useDefaultTransformers) {

hiteshchopra11

interface ImageService {
  suspend fun getImages(): ImageResponse

  companion object {
    @ExperimentalSerializationApi fun create(): ImageService {
      return ImageServiceImpl(
        client = HttpClient(Android) {
          install(Logging)
          install(JsonFeature) {
            serializer = GsonSerializer()

hiteshchopra11

class ImageServiceImpl(
  private val client: HttpClient
) : ImageService {
  override suspend fun getImages(): ImageResponse {
    return client.get {
      headers {
        append(HttpHeaders.Authorization, "Client-ID ${BuildConfig.CLIENT_ID}")
      }
      url(HttpRoutes.FETCH_IMAGES_URL)
    }

hiteshchopra11

interface ImageService {
  @GET("/photos?page=1")
  suspend fun getImages(): ImageResponse
}

object RetrofitBuilder {

    private const val BASE_URL = "https://api.unsplash.com/"

    private fun getRetrofit(): Retrofit {

hiteshchopra11

interface ImageService {
  suspend fun getImages(): ImageResponse
}

hiteshchopra11

public constructor(
        owner: ViewModelStoreOwner
    ) : this(owner.viewModelStore, defaultFactory(owner))

hiteshchopra11

val viewModel = ViewModelProvider(this)[MainActivityViewModel::class.java]
findViewById<Button>(R.id.btn_increment).setOnClickListener {
  viewModel.incrementByOne()
}
viewModel.counterLiveData.observe(this) { counter ->
  findViewById<TextView>(R.id.tv_counter).text = "$counter"
}

hiteshchopra11

val viewModel = MainActivityViewModel()
findViewById<Button>(R.id.btn_increment).setOnClickListener {
  viewModel.incrementByOne()
}
viewModel.counterLiveData.observe(this) { counter ->
  findViewById<TextView>(R.id.tv_counter).text = "$counter"
}