Fixed toggle not in sync with list after app restart + refactored the code a bit

app/src/main/java/org/schabi/newpipe/local/feed/FeedFragment.kt

@@ -126,9 +126,9 @@ class FeedFragment : BaseStateFragment<FeedState>() {
         _feedBinding = FragmentFeedBinding.bind(rootView)
         super.onViewCreated(rootView, savedInstanceState)
 
-        val factory = FeedViewModel.Factory(requireContext(), groupId, showPlayedItems)
+        val factory = FeedViewModel.Factory(requireContext(), groupId)
         viewModel = ViewModelProvider(this, factory).get(FeedViewModel::class.java)
-        showPlayedItems = viewModel.getSavedPlayedItemsToggle()
+        showPlayedItems = viewModel.getShowPlayedItemsFromPreferences()
         viewModel.stateLiveData.observe(viewLifecycleOwner, { it?.let(::handleResult) })
 
         groupAdapter = GroupieAdapter().apply {
@@ -214,7 +214,7 @@ class FeedFragment : BaseStateFragment<FeedState>() {
             showPlayedItems = !item.isChecked
             updateTogglePlayedItemsButton(item)
             viewModel.togglePlayedItems(showPlayedItems)
-            viewModel.savePlayedItemsToggle(showPlayedItems)
+            viewModel.saveShowPlayedItemsToPreferences(showPlayedItems)
         }
 
         return super.onOptionsItemSelected(item)

app/src/main/java/org/schabi/newpipe/local/feed/FeedViewModel.kt

@@ -26,12 +26,11 @@ import java.time.OffsetDateTime
 import java.util.concurrent.TimeUnit
 
 class FeedViewModel(
-    val applicationContext: Context,
+    private val applicationContext: Context,
     groupId: Long = FeedGroupEntity.GROUP_ALL_ID,
     initialShowPlayedItems: Boolean = true
 ) : ViewModel() {
     private var feedDatabaseManager: FeedDatabaseManager = FeedDatabaseManager(applicationContext)
-    private var sharedPreferences = PreferenceManager.getDefaultSharedPreferences(applicationContext)
 
     private val toggleShowPlayedItems = BehaviorProcessor.create<Boolean>()
     private val streamItems = toggleShowPlayedItems
@@ -85,21 +84,32 @@ class FeedViewModel(
         toggleShowPlayedItems.onNext(showPlayedItems)
     }
 
-    fun savePlayedItemsToggle(showPlayedItems: Boolean) = sharedPreferences.edit {
-        this.putBoolean(applicationContext.getString(R.string.show_played_items_filter_key), showPlayedItems)
-        this.apply()
-    }
+    fun saveShowPlayedItemsToPreferences(showPlayedItems: Boolean) =
+        PreferenceManager.getDefaultSharedPreferences(applicationContext).edit {
+            this.putBoolean(applicationContext.getString(R.string.feed_show_played_items_key), showPlayedItems)
+            this.apply()
+        }
 
-    fun getSavedPlayedItemsToggle() = sharedPreferences.getBoolean(applicationContext.getString(R.string.show_played_items_filter_key), true)
+    fun getShowPlayedItemsFromPreferences() = getShowPlayedItemsFromPreferences(applicationContext)
+
+    companion object {
+        private fun getShowPlayedItemsFromPreferences(context: Context) =
+            PreferenceManager.getDefaultSharedPreferences(context)
+                .getBoolean(context.getString(R.string.feed_show_played_items_key), true)
+    }
 
     class Factory(
         private val context: Context,
-        private val groupId: Long = FeedGroupEntity.GROUP_ALL_ID,
-        private val showPlayedItems: Boolean
+        private val groupId: Long = FeedGroupEntity.GROUP_ALL_ID
     ) : ViewModelProvider.Factory {
         @Suppress("UNCHECKED_CAST")
         override fun <T : ViewModel?> create(modelClass: Class<T>): T {
-            return FeedViewModel(context.applicationContext, groupId, showPlayedItems) as T
+            return FeedViewModel(
+                context.applicationContext,
+                groupId,
+                // Read initial value from preferences
+                getShowPlayedItemsFromPreferences(context.applicationContext)
+            ) as T
         }
     }
 }

app/src/main/res/values/settings_keys.xml

@@ -14,7 +14,7 @@
     <string name="saved_tabs_key" translatable="false">saved_tabs_key</string>
 
     <!-- Key values -->
-    <string name="show_played_items_filter_key" translatable="false">show_played_items_preference_key</string>
+    <string name="feed_show_played_items_key" translatable="false">feed_show_played_items</string>
     <string name="download_path_video_key" translatable="false">download_path</string>
     <string name="download_path_audio_key" translatable="false">download_path_audio</string>