MVP to MVVM: Lose Coupling Preview

LooseCoupling.kt

class MainActivity : AppCompatActivity() {

    val presenter: MainPresenter by currentScope.inject()

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        presenter.progressVisibilityObserver.observe {
            ..do something
        }
        
    }

}


class MainViewModel(val service: GithubService) {

    /*
        no instance of view present in the presenter.
        Hence, this can be plug-n-played to any UI Controller
     */
    val progressVisibilityObserver = DataObserver<Int>()
    ..

    private fun onSearchResultReceived(apiResponse: ApiResponse?) {
        progressVisibilityObserver.value = 0
        ..
    }

}