fetch articles

app/build.gradle

@@ -117,6 +117,7 @@ dependencies {
     //RxBinding
     implementation "com.jakewharton.rxbinding3:rxbinding:$rxBindingVersion"
     implementation "com.jakewharton.rxbinding3:rxbinding-recyclerview:$rxBindingVersion"
+    implementation "com.jakewharton.rxbinding3:rxbinding-material:$rxBindingVersion"
 
     //Tests
     testImplementation 'junit:junit:4.12'

app/src/main/java/com/biganto/visual/roompark/presentation/screen/feeds/ScreenContract.kt

 package com.biganto.visual.roompark.presentation.screen.feeds
 
 import com.biganto.visual.roompark.conductor.BigantoBaseContract
+import io.reactivex.Observable
 
 /**
  * Created by Vladislav Bogdashkin on 30.09.2019.
  */
 
 interface FeedsScreen : BigantoBaseContract<FeedsScreenViewState> {
+    fun feedsTabSelected(): Observable<Int>
 }
 

app/src/main/java/com/biganto/visual/roompark/presentation/screen/feeds/ScreenController.kt

@@ -7,9 +7,12 @@ import com.biganto.visual.roompark.R
 import com.biganto.visual.roompark.base.RoomParkApplication
 import com.biganto.visual.roompark.base.RoomParkMainActivity
 import com.biganto.visual.roompark.conductor.BigantoBaseController
-import com.biganto.visual.roompark.presentation.screen.feeds.utils.FeedsPagerAdapter
+import com.biganto.visual.roompark.domain.model.FeedModel
 import com.google.android.material.tabs.TabLayout
+import com.jakewharton.rxbinding3.material.selections
+import io.reactivex.Observable
 import timber.log.Timber
+import java.util.concurrent.TimeUnit
 import javax.inject.Inject
 
 /**
@@ -22,6 +25,12 @@ class FeedsScreenController  :
         , FeedsScreenPresenter>()
     , FeedsScreen {
 
+    override fun feedsTabSelected(): Observable<Int>
+            = feedsTabs.selections().map { it.position }
+        .debounce (200L, TimeUnit.MILLISECONDS)
+        .map { storedFeedsList[it].feedId }
+
+
     override fun injectDependencies() {
         getComponent()
     }
@@ -29,7 +38,8 @@ class FeedsScreenController  :
     @BindView(R.id.feedsTabs)
     lateinit var feedsTabs:TabLayout
 
-    val feedsAdapter = FeedsPagerAdapter()
+
+    private var storedFeedsList:List<FeedModel> = arrayListOf()
 
     @Inject
     override lateinit var injectedPresenter: FeedsScreenPresenter
@@ -45,6 +55,7 @@ class FeedsScreenController  :
         when(viewState){
             is FeedsScreenViewState.Idle -> render(viewState)
             is FeedsScreenViewState.FeedsPages -> render(viewState)
+            is FeedsScreenViewState.GetFeedArticlesPreview -> render(viewState)
         }
     }
 
@@ -68,7 +79,12 @@ class FeedsScreenController  :
                 }
             feedsTabs.addTab(tab)
         }
+        storedFeedsList = viewState.items
+    }
+
 
+    private fun render(viewState: FeedsScreenViewState.GetFeedArticlesPreview){
+        snackbar.showSnackBar(viewState.items.first().announce)
     }
 
     private fun getComponent() = DaggerFeedsScreenComponent.factory()

app/src/main/java/com/biganto/visual/roompark/presentation/screen/feeds/ScreenPresenter.kt

@@ -23,8 +23,13 @@ class FeedsScreenPresenter @Inject constructor(
         val fetchFeeds = interactor.fetchTopFeeds()
             .map {FeedsScreenViewState.FeedsPages(it.feeds.toList()) }
 
+        val  getFeedArticlesPreview = intent(FeedsScreen::feedsTabSelected)
+            .flatMapSingle { interactor.fetchArticles(it) }
+            .map { FeedsScreenViewState.GetFeedArticlesPreview(it.articles.toList()) }
+
         val state = restoreStateObservable
             .mergeWith(fetchFeeds)
+            .mergeWith(getFeedArticlesPreview)
             .doOnError{ Timber.e(it)}
             .subscribeOn(Schedulers.io())
             .observeOn(AndroidSchedulers.mainThread())

app/src/main/java/com/biganto/visual/roompark/presentation/screen/feeds/ScreenViewState.kt

 package com.biganto.visual.roompark.presentation.screen.feeds
 
 import com.biganto.visual.roompark.conductor.BigantoBaseViewState
+import com.biganto.visual.roompark.domain.model.ArticlePreviewModel
 import com.biganto.visual.roompark.domain.model.FeedModel
 
 /**
@@ -11,4 +12,5 @@ import com.biganto.visual.roompark.domain.model.FeedModel
 sealed class FeedsScreenViewState : BigantoBaseViewState() {
     class Idle : FeedsScreenViewState()
     class FeedsPages(val items:List<FeedModel>) : FeedsScreenViewState()
+    class GetFeedArticlesPreview(val items:List<ArticlePreviewModel>) : FeedsScreenViewState()
 }
\ No newline at end of file

app/src/main/res/layout/feeds_tab_view.xml

@@ -23,7 +23,6 @@
         android:layout_height="wrap_content"
         android:layout_alignEnd="@id/tab_title"
         android:layout_marginStart="16dp"
-        android:layout_marginEnd="16dp"
         android:text="@string/feeds_tab_divider"
         android:textColor="@color/colorInvertedNoticeText"
         app:layout_constraintBottom_toBottomOf="parent"