update(adapter): using same RecycledViewPool for both RecyclerViews

Author: hoc081098

.idea/misc.xml

@@ -1,5 +1,6 @@
 package com.hoc.pagination_mvi.ui.main
 
+import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
@@ -61,8 +62,9 @@ class HorizontalAdapter(
 
   override fun onBindViewHolder(holder: VH, position: Int) = holder.bind(getItem(position))
 
-  override fun onBindViewHolder(holder: VH, position: Int, payloads: MutableList<Any>) {
+  override fun onBindViewHolder(holder: VH, position: Int, payloads: List<Any>) {
     if (payloads.isEmpty()) return holder.bind(getItem(position))
+    Log.d("###", "[PAYLOAD] HORIZONTAL size=${payloads.size}")
     payloads.forEach { payload ->
       when {
         payload is PostVS && holder is PostVH -> holder.update(payload)

app/src/main/java/com/hoc/pagination_mvi/ui/main/HorizontalAdapter.kt

@@ -50,7 +50,10 @@ private object DiffUtilItemCallback : DiffUtil.ItemCallback<Item>() {
   }
 }
 
-class MainAdapter(private val compositeDisposable: CompositeDisposable) :
+class MainAdapter(
+  private val compositeDisposable: CompositeDisposable,
+  private val viewPool: RecyclerView.RecycledViewPool
+) :
   ListAdapter<Item, MainAdapter.VH>(DiffUtilItemCallback) {
   private val scrollToFirst = PublishSubject.create<Unit>()
   private var layoutManagerSavedState: Parcelable? = null
@@ -79,8 +82,9 @@ class MainAdapter(private val compositeDisposable: CompositeDisposable) :
 
   override fun onBindViewHolder(holder: VH, position: Int) = holder.bind(getItem(position))
 
-  override fun onBindViewHolder(holder: VH, position: Int, payloads: MutableList<Any>) {
+  override fun onBindViewHolder(holder: VH, position: Int, payloads: List<Any>) {
     if (payloads.isEmpty()) return holder.bind(getItem(position))
+    Log.d("###", "[PAYLOAD] MAIN size=${payloads.size}")
     payloads.forEach { payload ->
       Log.d("###", "[PAYLOAD] $payload")
       when {
@@ -166,7 +170,7 @@ class MainAdapter(private val compositeDisposable: CompositeDisposable) :
   }
 
   private inner class HorizontalListVH(itemView: View, parent: ViewGroup) : VH(itemView) {
-    private val recycler = itemView.recycler_horizontal!!
+    private val recycler = itemView.recycler_horizontal!!.apply { setRecycledViewPool(viewPool) }
     private val progressBar = itemView.progress_bar_horizontal!!
     private val textError = itemView.text_error_horizontal!!
     private val buttonRetry = itemView.button_retry_horizontal!!

app/src/main/java/com/hoc/pagination_mvi/ui/main/MainAdapter.kt

@@ -29,6 +29,7 @@ import kotlinx.android.synthetic.main.fragment_main.*
 import kotlinx.coroutines.ExperimentalCoroutinesApi
 import java.util.concurrent.TimeUnit
 import javax.inject.Inject
+import kotlin.LazyThreadSafetyMode.NONE
 
 @ExperimentalCoroutinesApi
 class MainFragment : Fragment() {
@@ -40,7 +41,7 @@ class MainFragment : Fragment() {
   private val maxSpanCount get() = if (requireContext().isOrientationPortrait) 2 else 4
   private val visibleThreshold get() = 2 * maxSpanCount + 1
 
-  private val adapter = MainAdapter(compositeDisposable)
+  private val adapter by lazy(NONE) { MainAdapter(compositeDisposable, recycler.recycledViewPool) }
 
   override fun onCreate(savedInstanceState: Bundle?) {
     AndroidSupportInjection.inject(this)