Add sorted genres/albums to LibraryFragment

Re-add the ability to show [sortable] Genres/Albums in LibraryFragment. Again.

AuxioTODO

@@ -23,8 +23,6 @@ TODO:
 
 /library/
 
-- Re-add albums/genres into a single adapter
-- Add highlighting to the current sortmode
 - Search
 - Exit functionality
 - ? Show Artists, Albums, and Songs in search ?

app/src/main/java/org/oxycblt/auxio/library/LibraryAdapter.kt

@@ -0,0 +1,110 @@
+package org.oxycblt.auxio.library
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.recyclerview.widget.RecyclerView
+import org.oxycblt.auxio.databinding.ItemAlbumBinding
+import org.oxycblt.auxio.databinding.ItemArtistBinding
+import org.oxycblt.auxio.databinding.ItemGenreBinding
+import org.oxycblt.auxio.music.Album
+import org.oxycblt.auxio.music.Artist
+import org.oxycblt.auxio.music.BaseModel
+import org.oxycblt.auxio.music.Genre
+import org.oxycblt.auxio.recycler.BaseViewHolder
+import org.oxycblt.auxio.recycler.ClickListener
+import org.oxycblt.auxio.theme.SHOW_ALBUMS
+import org.oxycblt.auxio.theme.SHOW_ARTISTS
+import org.oxycblt.auxio.theme.SHOW_GENRES
+
+// A Great Value androidx ListAdapter that can display three types of ViewHolders.
+class LibraryAdapter(
+    private val showMode: Int,
+    private val listener: ClickListener<BaseModel>
+) : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
+
+    private var data: List<BaseModel>
+
+    init {
+        // Assign the data on startup depending on the type
+        data = when (showMode) {
+            SHOW_GENRES -> listOf<Genre>()
+            SHOW_ALBUMS -> listOf<Album>()
+            SHOW_ARTISTS -> listOf<Artist>()
+
+            else -> listOf<Artist>()
+        }
+    }
+
+    override fun getItemCount(): Int = data.size
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
+        // Return a different View Holder depending on the show type
+        return when (showMode) {
+            SHOW_GENRES -> GenreViewHolder(
+                ItemGenreBinding.inflate(LayoutInflater.from(parent.context))
+            )
+
+            SHOW_ARTISTS -> ArtistViewHolder(
+                ItemArtistBinding.inflate(LayoutInflater.from(parent.context))
+            )
+
+            SHOW_ALBUMS -> AlbumViewHolder(
+                ItemAlbumBinding.inflate(LayoutInflater.from(parent.context))
+            )
+
+            else -> ArtistViewHolder(
+                ItemArtistBinding.inflate(LayoutInflater.from(parent.context))
+            )
+        }
+    }
+
+    override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
+        when (showMode) {
+            SHOW_GENRES -> holder as GenreViewHolder
+            SHOW_ARTISTS -> holder as ArtistViewHolder
+            SHOW_ALBUMS -> holder as AlbumViewHolder
+
+            else -> return
+        }.bind(data[position])
+    }
+
+    // Update the data, as its an internal value.
+    // TODO: Call this from a coroutine.
+    fun updateData(newData: List<BaseModel>) {
+        data = newData
+
+        notifyDataSetChanged()
+    }
+
+    // --- VIEWHOLDERS ---
+
+    inner class GenreViewHolder(
+        private val binding: ItemGenreBinding
+    ) : BaseViewHolder<BaseModel>(binding, listener) {
+
+        override fun onBind(model: BaseModel) {
+            binding.genre = model as Genre
+            binding.genreName.requestLayout()
+        }
+    }
+
+    inner class ArtistViewHolder(
+        private val binding: ItemArtistBinding
+    ) : BaseViewHolder<BaseModel>(binding, listener) {
+
+        override fun onBind(model: BaseModel) {
+            binding.artist = model as Artist
+            binding.artistName.requestLayout()
+        }
+    }
+
+    inner class AlbumViewHolder(
+        private val binding: ItemAlbumBinding
+    ) : BaseViewHolder<BaseModel>(binding, listener) {
+
+        override fun onBind(model: BaseModel) {
+            binding.album = model as Album
+            binding.albumName.requestLayout()
+        }
+    }
+}

app/src/main/java/org/oxycblt/auxio/library/LibraryFragment.kt

@@ -13,13 +13,15 @@ import androidx.navigation.fragment.findNavController
 import org.oxycblt.auxio.MainFragmentDirections
 import org.oxycblt.auxio.R
 import org.oxycblt.auxio.databinding.FragmentLibraryBinding
-import org.oxycblt.auxio.library.adapters.ArtistAdapter
 import org.oxycblt.auxio.music.Album
 import org.oxycblt.auxio.music.Artist
 import org.oxycblt.auxio.music.BaseModel
 import org.oxycblt.auxio.music.Genre
 import org.oxycblt.auxio.music.MusicViewModel
 import org.oxycblt.auxio.recycler.ClickListener
+import org.oxycblt.auxio.theme.SHOW_ALBUMS
+import org.oxycblt.auxio.theme.SHOW_ARTISTS
+import org.oxycblt.auxio.theme.SHOW_GENRES
 import org.oxycblt.auxio.theme.applyColor
 import org.oxycblt.auxio.theme.applyDivider
 import org.oxycblt.auxio.theme.resolveAttr
@@ -36,7 +38,8 @@ class LibraryFragment : Fragment() {
     ): View? {
         val binding = FragmentLibraryBinding.inflate(inflater)
 
-        val artistAdapter = ArtistAdapter(
+        val artistAdapter = LibraryAdapter(
+            libraryModel.showMode.value!!,
             ClickListener { navToItem(it) }
         )
 
@@ -49,9 +52,13 @@ class LibraryFragment : Fragment() {
 
             // Update the adapter with the new data
             artistAdapter.updateData(
-                mode.getSortedArtistList(
-                    musicModel.artists.value!!
-                )
+                when (libraryModel.showMode.value) {
+                    SHOW_GENRES -> mode.getSortedGenreList(musicModel.genres.value!!)
+                    SHOW_ARTISTS -> mode.getSortedArtistList(musicModel.artists.value!!)
+                    SHOW_ALBUMS -> mode.getSortedAlbumList(musicModel.albums.value!!)
+
+                    else -> mode.getSortedArtistList(musicModel.artists.value!!)
+                }
             )
 
             // Then update the shown icon & the currently highlighted sort icon to reflect
@@ -75,8 +82,6 @@ class LibraryFragment : Fragment() {
             true
         }
 
-        binding.libraryToolbar.inflateMenu(R.menu.menu_library)
-
         Log.d(this::class.simpleName, "Fragment created.")
 
         return binding.root
@@ -93,6 +98,8 @@ class LibraryFragment : Fragment() {
         if (!libraryModel.isAlreadyNavigating) {
             libraryModel.isAlreadyNavigating = true
 
+            Log.d(this::class.simpleName, "Navigating to the detail fragment for $baseModel.name")
+
             findNavController().navigate(
                 when (baseModel) {
                     is Genre -> MainFragmentDirections.actionShowGenre(baseModel.id)

app/src/main/java/org/oxycblt/auxio/library/LibraryViewModel.kt

@@ -11,11 +11,11 @@ import org.oxycblt.auxio.theme.SHOW_ARTISTS
 class LibraryViewModel : ViewModel() {
     var isAlreadyNavigating = false
 
-    // TODO: Move these to pref values when they're added
+    // TODO: Move these to prefs when they're added
     private val mShowMode = MutableLiveData(SHOW_ARTISTS)
     val showMode: LiveData<Int> get() = mShowMode
 
-    private val mSortMode = MutableLiveData(SortMode.ALPHA_UP)
+    private val mSortMode = MutableLiveData(SortMode.ALPHA_DOWN)
     val sortMode: LiveData<SortMode> get() = mSortMode
 
     fun updateSortMode(item: MenuItem) {

app/src/main/java/org/oxycblt/auxio/library/adapters/AlbumAdapter.kt

@@ -1,35 +0,0 @@
-package org.oxycblt.auxio.library.adapters
-
-import android.view.LayoutInflater
-import android.view.ViewGroup
-import androidx.recyclerview.widget.ListAdapter
-import org.oxycblt.auxio.databinding.ItemAlbumBinding
-import org.oxycblt.auxio.music.Album
-import org.oxycblt.auxio.recycler.BaseViewHolder
-import org.oxycblt.auxio.recycler.ClickListener
-import org.oxycblt.auxio.recycler.DiffCallback
-
-class AlbumAdapter(
-    private val listener: ClickListener<Album>
-) : ListAdapter<Album, AlbumAdapter.ViewHolder>(DiffCallback()) {
-
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
-        return ViewHolder(
-            ItemAlbumBinding.inflate(LayoutInflater.from(parent.context))
-        )
-    }
-
-    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
-        holder.bind(getItem(position))
-    }
-
-    inner class ViewHolder(
-        private val binding: ItemAlbumBinding
-    ) : BaseViewHolder<Album>(binding, listener) {
-
-        override fun onBind(model: Album) {
-            binding.album = model
-            binding.albumName.requestLayout()
-        }
-    }
-}

app/src/main/java/org/oxycblt/auxio/library/adapters/ArtistAdapter.kt

@@ -1,44 +0,0 @@
-package org.oxycblt.auxio.library.adapters
-
-import android.view.LayoutInflater
-import android.view.ViewGroup
-import androidx.recyclerview.widget.RecyclerView
-import org.oxycblt.auxio.databinding.ItemArtistBinding
-import org.oxycblt.auxio.music.Artist
-import org.oxycblt.auxio.recycler.BaseViewHolder
-import org.oxycblt.auxio.recycler.ClickListener
-
-class ArtistAdapter(
-    private val listener: ClickListener<Artist>
-) : RecyclerView.Adapter<ArtistAdapter.ViewHolder>() {
-
-    private var data = listOf<Artist>()
-
-    override fun getItemCount(): Int = data.size
-
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
-        return ViewHolder(
-            ItemArtistBinding.inflate(LayoutInflater.from(parent.context))
-        )
-    }
-
-    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
-        holder.bind(data[position])
-    }
-
-    fun updateData(newData: List<Artist>) {
-        data = newData
-
-        notifyDataSetChanged()
-    }
-
-    inner class ViewHolder(
-        private val binding: ItemArtistBinding
-    ) : BaseViewHolder<Artist>(binding, listener) {
-
-        override fun onBind(model: Artist) {
-            binding.artist = model
-            binding.artistName.requestLayout()
-        }
-    }
-}

app/src/main/java/org/oxycblt/auxio/library/adapters/GenreAdapter.kt

@@ -1,35 +0,0 @@
-package org.oxycblt.auxio.library.adapters
-
-import android.view.LayoutInflater
-import android.view.ViewGroup
-import androidx.recyclerview.widget.ListAdapter
-import org.oxycblt.auxio.databinding.ItemGenreBinding
-import org.oxycblt.auxio.music.Genre
-import org.oxycblt.auxio.recycler.BaseViewHolder
-import org.oxycblt.auxio.recycler.ClickListener
-import org.oxycblt.auxio.recycler.DiffCallback
-
-class GenreAdapter(
-    private val listener: ClickListener<Genre>
-) : ListAdapter<Genre, GenreAdapter.ViewHolder>(DiffCallback()) {
-
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
-        return ViewHolder(
-            ItemGenreBinding.inflate(LayoutInflater.from(parent.context))
-        )
-    }
-
-    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
-        holder.bind(getItem(position))
-    }
-
-    inner class ViewHolder(
-        private val binding: ItemGenreBinding
-    ) : BaseViewHolder<Genre>(binding, listener) {
-
-        override fun onBind(model: Genre) {
-            binding.genre = model
-            binding.genreName.requestLayout()
-        }
-    }
-}

app/src/main/res/drawable/ic_sort_none.xml

@@ -5,7 +5,7 @@
     android:viewportWidth="24"
     android:viewportHeight="24"
     android:tint="?attr/colorPrimary">
-  <path
-      android:fillColor="@android:color/white"
-      android:pathData="M3,18h6v-2L3,16v2zM3,6v2h18L21,6L3,6zM3,13h12v-2L3,11v2z"/>
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M3,18h6v-2L3,16v2zM3,6v2h18L21,6L3,6zM3,13h12v-2L3,11v2z" />
 </vector>

app/src/main/res/layout/fragment_library.xml

@@ -17,6 +17,7 @@
             android:background="?android:attr/windowBackground"
             android:elevation="@dimen/elevation_normal"
             app:popupTheme="@style/AppThemeOverlay.Popup"
+            app:menu="@menu/menu_library"
             app:titleTextAppearance="@style/TextAppearance.Toolbar.Bold"
             app:title="@string/title_library_fragment" />
 

app/src/main/res/menu/menu_library.xml

@@ -4,15 +4,15 @@
         android:id="@+id/sort_none"
         android:icon="@drawable/ic_sort_none"
         android:title="@string/label_sort_none"
-        android:contentDescription="@string/description_sort_none"/>
+        android:contentDescription="@string/description_sort_none" />
     <item
         android:id="@+id/sort_alpha_down"
         android:icon="@drawable/ic_sort_alpha_down"
         android:title="@string/label_sort_alpha_down"
-        android:contentDescription="@string/description_sort_alpha_down"/>
+        android:contentDescription="@string/description_sort_alpha_down" />
     <item
         android:id="@+id/sort_alpha_up"
         android:icon="@drawable/ic_sort_alpha_up"
         android:title="@string/label_sort_alpha_up"
-        android:contentDescription="@string/description_sort_alpha_up"/>
+        android:contentDescription="@string/description_sort_alpha_up" />
 </menu>