Minor cleanup

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryAdapter.kt

@@ -6,7 +6,6 @@ import android.view.ViewGroup
 import eu.kanade.tachiyomi.data.database.models.Category
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
 import eu.kanade.tachiyomi.databinding.LibraryCategoryBinding
-import eu.kanade.tachiyomi.util.view.inflate
 import eu.kanade.tachiyomi.widget.RecyclerViewPagerAdapter
 import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
@@ -36,7 +35,7 @@ class LibraryAdapter(
     /**
      * The number of manga in each category.
      */
-    var mangaCountPerCategory: Map<Int, Int> = emptyMap()
+    var itemsPerCategory: Map<Int, Int> = emptyMap()
         set(value) {
             if (field !== value) {
                 field = value
@@ -97,7 +96,7 @@ class LibraryAdapter(
      */
     override fun getPageTitle(position: Int): CharSequence {
         if (preferences.categoryNumberOfItems().get()) {
-            return categories[position].let { "${it.name} (${mangaCountPerCategory[it.id]})" }
+            return categories[position].let { "${it.name} (${itemsPerCategory[it.id]})" }
         }
         return categories[position].name
     }

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryController.kt

@@ -144,27 +144,27 @@ class LibraryController(
     }
 
     private fun updateTitle() {
-        val categoryTabs = preferences.categoryTabs().get()
+        val showCategoryTabs = preferences.categoryTabs().get()
         val currentCategory = adapter?.categories?.getOrNull(binding.libraryPager.currentItem)
 
-        if (categoryTabs) {
-            currentTitle = resources?.getString(R.string.label_library)
+        var title = if (showCategoryTabs) {
+            resources?.getString(R.string.label_library)
         } else {
-            currentCategory?.let {
-                currentTitle = it.name
-            }
+            currentCategory?.name
         }
 
         if (preferences.categoryNumberOfItems().get() && libraryMangaRelay.hasValue()) {
             libraryMangaRelay.value.mangas.let { mangaMap ->
-                if (!categoryTabs) {
-                    currentTitle += " (${mangaMap[currentCategory?.id]?.size ?: 0})"
+                if (!showCategoryTabs) {
+                    title += " (${mangaMap[currentCategory?.id]?.size ?: 0})"
                 } else if (adapter?.categories?.size == 1) {
-                    // special case for if there are no categories
-                    currentTitle += " (${mangaMap[0]?.size ?: 0})"
+                    // Only "Default" category
+                    title += " (${mangaMap[0]?.size ?: 0})"
                 }
             }
         }
+
+        currentTitle = title
     }
 
     override fun createPresenter(): LibraryPresenter {
@@ -289,9 +289,9 @@ class LibraryController(
 
         // Set the categories
         adapter.categories = categories
-        adapter.mangaCountPerCategory = adapter.categories.map {
-            Pair(it.id ?: -1, mangaMap[it.id]?.size ?: 0)
-        }.toMap()
+        adapter.itemsPerCategory = adapter.categories
+            .map { (it.id ?: -1) to (mangaMap[it.id]?.size ?: 0) }
+            .toMap()
 
         // Restore active category.
         binding.libraryPager.setCurrentItem(activeCat, false)