Use ListAdapter in NotificationModeConfigAdapter.

app/src/main/java/org/schabi/newpipe/settings/notifications/NotificationModeConfigAdapter.kt

@@ -1,15 +1,13 @@
 package org.schabi.newpipe.settings.notifications
 
 import android.view.LayoutInflater
-import android.view.View
 import android.view.ViewGroup
-import android.widget.CheckedTextView
-import androidx.recyclerview.widget.AsyncListDiffer
 import androidx.recyclerview.widget.DiffUtil
+import androidx.recyclerview.widget.ListAdapter
 import androidx.recyclerview.widget.RecyclerView
-import org.schabi.newpipe.R
 import org.schabi.newpipe.database.subscription.NotificationMode
 import org.schabi.newpipe.database.subscription.SubscriptionEntity
+import org.schabi.newpipe.databinding.ItemNotificationConfigBinding
 import org.schabi.newpipe.settings.notifications.NotificationModeConfigAdapter.SubscriptionHolder
 
 /**
@@ -19,75 +17,31 @@ import org.schabi.newpipe.settings.notifications.NotificationModeConfigAdapter.S
  */
 class NotificationModeConfigAdapter(
     private val listener: ModeToggleListener
-) : RecyclerView.Adapter<SubscriptionHolder>() {
+) : ListAdapter<SubscriptionItem, SubscriptionHolder>(DiffCallback) {
-
+    override fun onCreateViewHolder(parent: ViewGroup, i: Int): SubscriptionHolder {
-    private val differ = AsyncListDiffer(this, DiffCallback())
+        return SubscriptionHolder(
-
+            ItemNotificationConfigBinding
-    init {
+                .inflate(LayoutInflater.from(parent.context), parent, false)
-        setHasStableIds(true)
+        )
     }
 
-    override fun onCreateViewHolder(viewGroup: ViewGroup, i: Int): SubscriptionHolder {
+    override fun onBindViewHolder(holder: SubscriptionHolder, position: Int) {
-        val view = LayoutInflater.from(viewGroup.context)
+        holder.bind(currentList[position])
-            .inflate(R.layout.item_notification_config, viewGroup, false)
-        return SubscriptionHolder(view, listener)
     }
 
-    override fun onBindViewHolder(subscriptionHolder: SubscriptionHolder, i: Int) {
-        subscriptionHolder.bind(differ.currentList[i])
-    }
-
-    fun getItem(position: Int): SubscriptionItem = differ.currentList[position]
-
-    override fun getItemCount() = differ.currentList.size
-
-    override fun getItemId(position: Int): Long {
-        return differ.currentList[position].id
-    }
-
-    fun getCurrentList(): List<SubscriptionItem> = differ.currentList
-
     fun update(newData: List<SubscriptionEntity>) {
-        differ.submitList(
+        val items = newData.map {
-            newData.map {
+            SubscriptionItem(it.uid, it.name, it.notificationMode, it.serviceId, it.url)
-                SubscriptionItem(
-                    id = it.uid,
-                    title = it.name,
-                    notificationMode = it.notificationMode,
-                    serviceId = it.serviceId,
-                    url = it.url
-                )
         }
-        )
+        submitList(items)
     }
 
-    data class SubscriptionItem(
+    inner class SubscriptionHolder(
-        val id: Long,
+        private val itemBinding: ItemNotificationConfigBinding
-        val title: String,
+    ) : RecyclerView.ViewHolder(itemBinding.root) {
-        @NotificationMode
-        val notificationMode: Int,
-        val serviceId: Int,
-        val url: String
-    )
-
-    class SubscriptionHolder(
-        itemView: View,
-        private val listener: ModeToggleListener
-    ) : RecyclerView.ViewHolder(itemView), View.OnClickListener {
-
-        private val checkedTextView = itemView as CheckedTextView
-
         init {
-            itemView.setOnClickListener(this)
+            itemView.setOnClickListener {
-        }
+                val mode = if (itemBinding.root.isChecked) {
-
-        fun bind(data: SubscriptionItem) {
-            checkedTextView.text = data.title
-            checkedTextView.isChecked = data.notificationMode != NotificationMode.DISABLED
-        }
-
-        override fun onClick(v: View) {
-            val mode = if (checkedTextView.isChecked) {
                     NotificationMode.DISABLED
                 } else {
                     NotificationMode.ENABLED
@@ -96,8 +50,13 @@ class NotificationModeConfigAdapter(
             }
         }
 
-    private class DiffCallback : DiffUtil.ItemCallback<SubscriptionItem>() {
+        fun bind(data: SubscriptionItem) {
+            itemBinding.root.text = data.title
+            itemBinding.root.isChecked = data.notificationMode != NotificationMode.DISABLED
+        }
+    }
 
+    private object DiffCallback : DiffUtil.ItemCallback<SubscriptionItem>() {
         override fun areItemsTheSame(oldItem: SubscriptionItem, newItem: SubscriptionItem): Boolean {
             return oldItem.id == newItem.id
         }
@@ -107,18 +66,27 @@ class NotificationModeConfigAdapter(
         }
 
         override fun getChangePayload(oldItem: SubscriptionItem, newItem: SubscriptionItem): Any? {
-            if (oldItem.notificationMode != newItem.notificationMode) {
+            return if (oldItem.notificationMode != newItem.notificationMode) {
-                return newItem.notificationMode
+                newItem.notificationMode
             } else {
-                return super.getChangePayload(oldItem, newItem)
+                super.getChangePayload(oldItem, newItem)
             }
         }
     }
 
-    interface ModeToggleListener {
+    fun interface ModeToggleListener {
         /**
          * Triggered when the UI representation of a notification mode is changed.
          */
         fun onModeChange(position: Int, @NotificationMode mode: Int)
     }
 }
+
+data class SubscriptionItem(
+    val id: Long,
+    val title: String,
+    @NotificationMode
+    val notificationMode: Int,
+    val serviceId: Int,
+    val url: String
+)

app/src/main/java/org/schabi/newpipe/settings/notifications/NotificationModeConfigFragment.kt

@@ -1,5 +1,6 @@
 package org.schabi.newpipe.settings.notifications
 
+import android.content.Context
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.Menu
@@ -8,30 +9,36 @@ import android.view.MenuItem
 import android.view.View
 import android.view.ViewGroup
 import androidx.fragment.app.Fragment
-import androidx.recyclerview.widget.RecyclerView
 import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers
 import io.reactivex.rxjava3.disposables.CompositeDisposable
 import io.reactivex.rxjava3.disposables.Disposable
 import io.reactivex.rxjava3.schedulers.Schedulers
 import org.schabi.newpipe.R
 import org.schabi.newpipe.database.subscription.NotificationMode
+import org.schabi.newpipe.databinding.FragmentChannelsNotificationsBinding
 import org.schabi.newpipe.local.subscription.SubscriptionManager
-import org.schabi.newpipe.settings.notifications.NotificationModeConfigAdapter.ModeToggleListener
 
 /**
  * [NotificationModeConfigFragment] is a settings fragment
  * which allows changing the [NotificationMode] of all subscribed channels.
  * The [NotificationMode] can either be changed one by one or toggled for all channels.
  */
-class NotificationModeConfigFragment : Fragment(), ModeToggleListener {
+class NotificationModeConfigFragment : Fragment() {
+    private var _binding: FragmentChannelsNotificationsBinding? = null
+    private val binding get() = _binding!!
 
-    private lateinit var updaters: CompositeDisposable
+    private val updaters = CompositeDisposable()
     private var loader: Disposable? = null
-    private var adapter: NotificationModeConfigAdapter? = null
+    private lateinit var adapter: NotificationModeConfigAdapter
+    private lateinit var subscriptionManager: SubscriptionManager
+
+    override fun onAttach(context: Context) {
+        super.onAttach(context)
+        subscriptionManager = SubscriptionManager(context)
+    }
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        updaters = CompositeDisposable()
         setHasOptionsMenu(true)
     }
 
@@ -39,23 +46,29 @@ class NotificationModeConfigFragment : Fragment(), ModeToggleListener {
         inflater: LayoutInflater,
         container: ViewGroup?,
         savedInstanceState: Bundle?,
-    ): View = inflater.inflate(R.layout.fragment_channels_notifications, container, false)
+    ): View {
+        _binding = FragmentChannelsNotificationsBinding.inflate(inflater, container, false)
+        return binding.root
+    }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
-        val recyclerView: RecyclerView = view.findViewById(R.id.recycler_view)
+        adapter = NotificationModeConfigAdapter { position, mode ->
-        adapter = NotificationModeConfigAdapter(this)
+            // Notification mode has been changed via the UI.
-        recyclerView.adapter = adapter
+            // Now change it in the database.
+            updaters.add(updateNotificationMode(adapter.currentList[position], mode))
+        }
+        binding.recyclerView.adapter = adapter
         loader?.dispose()
-        loader = SubscriptionManager(requireContext())
+        loader = subscriptionManager.subscriptions()
-            .subscriptions()
             .observeOn(AndroidSchedulers.mainThread())
-            .subscribe { newData -> adapter?.update(newData) }
+            .subscribe(adapter::update)
     }
 
     override fun onDestroyView() {
         loader?.dispose()
         loader = null
+        _binding = null
         super.onDestroyView()
     }
 
@@ -79,41 +92,22 @@ class NotificationModeConfigFragment : Fragment(), ModeToggleListener {
         }
     }
 
-    override fun onModeChange(position: Int, @NotificationMode mode: Int) {
-        // Notification mode has been changed via the UI.
-        // Now change it in the database.
-        val subscription = adapter?.getItem(position) ?: return
-        updaters.add(
-            SubscriptionManager(requireContext())
-                .updateNotificationMode(
-                    subscription.serviceId,
-                    subscription.url,
-                    mode
-                )
-                .subscribeOn(Schedulers.io())
-                .subscribe()
-        )
-    }
-
     private fun toggleAll() {
-        val subscriptions = adapter?.getCurrentList() ?: return
+        val mode = adapter.currentList.firstOrNull()?.notificationMode ?: return
-        val mode = subscriptions.firstOrNull()?.notificationMode ?: return
         val newMode = when (mode) {
             NotificationMode.DISABLED -> NotificationMode.ENABLED
             else -> NotificationMode.DISABLED
         }
-        val subscriptionManager = SubscriptionManager(requireContext())
+        val disposables = adapter.currentList.map { updateNotificationMode(it, newMode) }
-        updaters.add(
+        updaters.add(CompositeDisposable(disposables))
-            CompositeDisposable(
+    }
-                subscriptions.map { item ->
+
-                    subscriptionManager.updateNotificationMode(
+    private fun updateNotificationMode(
-                        serviceId = item.serviceId,
+        item: SubscriptionItem,
-                        url = item.url,
+        @NotificationMode mode: Int
-                        mode = newMode
+    ): Disposable {
-                    ).subscribeOn(Schedulers.io())
+        return subscriptionManager.updateNotificationMode(item.serviceId, item.url, mode)
+            .subscribeOn(Schedulers.io())
             .subscribe()
     }
-            )
-        )
-    }
 }