Remove unneeded casts

app/src/main/java/eu/kanade/tachiyomi/ui/recently_read/RecentlyReadAdapter.kt

@@ -1,6 +1,5 @@
 package eu.kanade.tachiyomi.ui.recently_read
 
-import android.support.v7.widget.RecyclerView
 import android.view.ViewGroup
 import eu.davidea.flexibleadapter.FlexibleAdapter
 import eu.kanade.tachiyomi.R
@@ -15,13 +14,15 @@ import eu.kanade.tachiyomi.util.inflate
  * @param fragment a RecentlyReadFragment object
  * @constructor creates an instance of the adapter.
  */
-class RecentlyReadAdapter(val fragment: RecentlyReadFragment) : FlexibleAdapter<RecyclerView.ViewHolder, Any>() {
+class RecentlyReadAdapter(val fragment: RecentlyReadFragment)
+: FlexibleAdapter<RecentlyReadHolder, MangaChapterHistory>() {
+
     /**
      * Called when ViewHolder is created
      * @param parent parent View
      * @param viewType int containing viewType
      */
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder? {
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecentlyReadHolder {
         val view = parent.inflate(R.layout.item_recent_manga)
         return RecentlyReadHolder(view, this)
     }
@@ -31,9 +32,9 @@ class RecentlyReadAdapter(val fragment: RecentlyReadFragment) : FlexibleAdapter<
      * @param holder bind holder
      * @param position position of holder
      */
-    override fun onBindViewHolder(holder: RecyclerView.ViewHolder?, position: Int) {
-        val item = getItem(position) as MangaChapterHistory
-        (holder as RecentlyReadHolder).onSetValues(item)
+    override fun onBindViewHolder(holder: RecentlyReadHolder, position: Int) {
+        val item = getItem(position)
+        holder.onSetValues(item)
     }
 
     /**

app/src/main/java/eu/kanade/tachiyomi/ui/recently_read/RecentlyReadHolder.kt

@@ -22,8 +22,8 @@ import java.text.DecimalFormatSymbols
  * @param adapter the adapter handling this holder.
  * @constructor creates a new recent chapter holder.
  */
-class RecentlyReadHolder(view: View, private val adapter: RecentlyReadAdapter) :
-        RecyclerView.ViewHolder(view) {
+class RecentlyReadHolder(view: View, private val adapter: RecentlyReadAdapter)
+: RecyclerView.ViewHolder(view) {
 
     /**
      * DecimalFormat used to display correct chapter number

app/src/main/java/eu/kanade/tachiyomi/ui/recently_read/RecentlyReadPresenter.kt

@@ -13,17 +13,20 @@ import java.text.SimpleDateFormat
 import java.util.*
 import javax.inject.Inject
 
-/**
- * The id of the restartable.
- */
-const private val GET_RECENT_MANGA = 1
-
 /**
  * Presenter of RecentlyReadFragment.
  * Contains information and data for fragment.
  * Observable updates should be called from here.
  */
 class RecentlyReadPresenter : BasePresenter<RecentlyReadFragment>() {
+
+    companion object {
+        /**
+         * The id of the restartable.
+         */
+        const private val GET_RECENT_MANGA = 1
+    }
+
     /**
      * Used to connect to database
      */
@@ -35,9 +38,9 @@ class RecentlyReadPresenter : BasePresenter<RecentlyReadFragment>() {
         // Used to get recent manga
         restartableLatestCache(GET_RECENT_MANGA,
                 { getRecentMangaObservable() },
-                { recentMangaFragment, manga ->
+                { view, manga ->
                     // Update adapter to show recent manga's
-                    recentMangaFragment.onNextManga(manga)
+                    view.onNextManga(manga)
                 }
         )