Created
January 13, 2018 19:52
-
-
Save SabagRonen/8852311a8f3cee86a5c2d2c87690f4b8 to your computer and use it in GitHub Desktop.
Clean Architecture and Kotlin Coroutines post loading image use case
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
data class LoadImageUseCaseRequest ( | |
val key: String, | |
val storage: Storage, | |
val imageFetcher: ImageFetcher | |
) | |
data class LoadImageUseCaseResponse (val bitmap: Bitmap) | |
class LoadImageUseCase : UseCase<LoadImageUseCaseRequest, LoadImageUseCaseResponse> { | |
override fun handleRequest(request: LoadImageUseCaseRequest) : LoadImageUseCaseResponse { | |
val url = request.storage.getUrlForKey(request.key) | |
val image = request.imageFetcher.getImageFromUrl(url) | |
return LoadImageUseCaseResponse(image) | |
} | |
} | |
class Model { | |
@Inject lateinit var useCaseRunner: UseCaseRunner<LoadImageUseCaseRequest, LoadImageUseCaseResponse> | |
@Inject lateinit var imageFetcher : ImageFetcher | |
@Inject lateinit var storage: Storage | |
fun fetchUseCase(storageKey: String) { | |
val request = LoadImageUseCaseRequest(storageKey, storage, imageFetcher) | |
val useCase = LoadImageUseCase() | |
useCaseRunner.runUseCase(useCase, request, object : UseCaseResponseHandler<LoadImageUseCaseResponse> { | |
override fun handleResponse(response: LoadImageUseCaseResponse) { | |
doSomthingWithResponse(response) | |
} | |
}) | |
} | |
private fun doSomthingWithResponse(response: LoadImageUseCaseResponse) { | |
.... | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment