Add album detail fragment

Add a fragment for album details.

app/src/main/java/org/oxycblt/auxio/detail/AlbumDetailFragment.kt

@@ -0,0 +1,37 @@
+package org.oxycblt.auxio.detail
+
+import android.os.Bundle
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.navigation.fragment.navArgs
+import org.oxycblt.auxio.databinding.FragmentAlbumDetailBinding
+import org.oxycblt.auxio.music.MusicViewModel
+
+class AlbumDetailFragment : Fragment() {
+
+    private val args: AlbumDetailFragmentArgs by navArgs()
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        val binding = FragmentAlbumDetailBinding.inflate(inflater)
+
+        // I honestly don't want to turn of the any data classes into parcelables due to how
+        // many lists they store, so just pick up the artist id and find it from musicModel.
+        val musicModel: MusicViewModel by activityViewModels()
+        val album = musicModel.albums.value?.find { it.id == args.albumId }!!
+
+        binding.lifecycleOwner = this
+        binding.album = album
+
+        Log.d(this::class.simpleName, "Fragment created.")
+
+        return binding.root
+    }
+}

app/src/main/java/org/oxycblt/auxio/detail/ArtistDetailFragment.kt

@@ -7,14 +7,21 @@ import android.view.View
 import android.view.ViewGroup
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.activityViewModels
+import androidx.navigation.fragment.findNavController
+import androidx.navigation.fragment.navArgs
 import org.oxycblt.auxio.ClickListener
 import org.oxycblt.auxio.databinding.FragmentArtistDetailBinding
 import org.oxycblt.auxio.detail.adapters.DetailAlbumAdapter
+import org.oxycblt.auxio.library.DetailViewModel
 import org.oxycblt.auxio.music.MusicViewModel
+import org.oxycblt.auxio.music.models.Album
 import org.oxycblt.auxio.theme.applyDivider
 
 class ArtistDetailFragment : Fragment() {
 
+    private val args: ArtistDetailFragmentArgs by navArgs()
+    private val detailModel: DetailViewModel by activityViewModels()
+
     override fun onCreateView(
         inflater: LayoutInflater,
         container: ViewGroup?,
@@ -22,12 +29,10 @@ class ArtistDetailFragment : Fragment() {
     ): View? {
         val binding = FragmentArtistDetailBinding.inflate(inflater)
 
-        // I honestly don't want to turn of the any data classes into a parcelables due to how
+        // I honestly don't want to turn of the any data classes into parcelables due to how
         // many lists they store, so just pick up the artist id and find it from musicModel.
         val musicModel: MusicViewModel by activityViewModels()
-        val artistId = ArtistDetailFragmentArgs.fromBundle(requireArguments()).artistId
+        val artist = musicModel.artists.value?.find { it.id == args.artistId }!!
-
-        val artist = musicModel.artists.value?.find { it.id == artistId }!!
 
         binding.lifecycleOwner = this
         binding.artist = artist
@@ -35,7 +40,7 @@ class ArtistDetailFragment : Fragment() {
         binding.albumRecycler.adapter = DetailAlbumAdapter(
             artist.albums,
             ClickListener {
-                Log.d(this::class.simpleName, it.name)
+                navToAlbum(it)
             }
         )
         binding.albumRecycler.applyDivider()
@@ -45,4 +50,21 @@ class ArtistDetailFragment : Fragment() {
 
         return binding.root
     }
+
+    override fun onResume() {
+        super.onResume()
+
+        detailModel.isAlreadyNavigating = false
+    }
+
+    private fun navToAlbum(album: Album) {
+        // Don't navigate if an item already has been selected.
+        if (!detailModel.isAlreadyNavigating) {
+            detailModel.isAlreadyNavigating = true
+
+            findNavController().navigate(
+                ArtistDetailFragmentDirections.actionShowAlbum(album.id)
+            )
+        }
+    }
 }

app/src/main/java/org/oxycblt/auxio/detail/DetailViewModel.kt

@@ -0,0 +1,7 @@
+package org.oxycblt.auxio.library
+
+import androidx.lifecycle.ViewModel
+
+class DetailViewModel : ViewModel() {
+    var isAlreadyNavigating = false
+}

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

@@ -50,11 +50,10 @@ class LibraryFragment : Fragment() {
     }
 
     private fun navToArtist(artist: Artist) {
+        // Don't navigate if an item already has been selected.
         if (!libraryModel.isAlreadyNavigating) {
             libraryModel.isAlreadyNavigating = true
 
-            // When navigation, pass the artistImage of the item as a shared element to create
-            // the image popup.
             findNavController().navigate(
                 MainFragmentDirections.actionShowArtist(artist.id)
             )

app/src/main/java/org/oxycblt/auxio/music/MusicUtils.kt

@@ -82,17 +82,8 @@ fun TextView.bindArtistCounts(artist: Artist) {
     text = context.getString(R.string.format_double_counts, albums, songs)
 }
 
+// TODO: Add option to just list all genres.
 @BindingAdapter("artistGenre")
 fun TextView.getArtistGenre(artist: Artist) {
-    // If the artist has more than one genre, pick the most used one.
+    text = artist.genre
-    // TODO: Add an option to display all genres.
-    val genre: String = if (artist.genres.size > 1) {
-        val genres = artist.genres.groupBy { it.name }
-
-        genres.keys.sortedByDescending { genres[it]?.size }[0]
-    } else {
-        artist.genres[0].name
-    }
-
-    text = genre
 }

app/src/main/java/org/oxycblt/auxio/music/models/Album.kt

@@ -8,7 +8,7 @@ data class Album(
     var name: String = "",
     val artistName: String = "", // only used for sorting. Use artist.name instead.
     val coverUri: Uri = Uri.EMPTY,
-    val year: Int = 0
+    val year: String = ""
 ) {
     lateinit var artist: Artist
 

app/src/main/java/org/oxycblt/auxio/music/models/Artist.kt

@@ -7,6 +7,7 @@ data class Artist(
     val genres: MutableList<Genre> = mutableListOf(Genre())
 ) {
     val albums = mutableListOf<Album>()
+    var genre = ""
 
     val numAlbums: Int get() = albums.size
     var numSongs = 0
@@ -17,5 +18,14 @@ data class Artist(
         albums.forEach { album ->
             numSongs += album.numSongs
         }
+
+        // If the artist has more than one genre, pick the most used one.
+        genre = if (genres.size > 1) {
+            val groupGenres = genres.groupBy { it.name }
+
+            groupGenres.keys.sortedByDescending { groupGenres[it]?.size }[0]
+        } else {
+            genres[0].name
+        }
     }
 }

app/src/main/java/org/oxycblt/auxio/music/processing/MusicLoader.kt

@@ -191,7 +191,7 @@ class MusicLoader(private val resolver: ContentResolver) {
                 albums.add(
                     Album(
                         id, name, artist,
-                        coverUri, year
+                        coverUri, year.toString()
                     )
                 )
             }

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

@@ -0,0 +1,96 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <data>
+
+        <variable
+            name="album"
+            type="org.oxycblt.auxio.music.models.Album" />
+    </data>
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical">
+
+        <androidx.appcompat.widget.Toolbar
+            android:id="@+id/toolbar"
+            android:layout_width="match_parent"
+            android:layout_height="?android:attr/actionBarSize"
+            android:background="?android:attr/windowBackground"
+            android:elevation="@dimen/elevation_normal"
+            app:titleTextAppearance="@style/TextAppearance.Toolbar.Bold"
+            app:title="@string/title_library_fragment"
+            tools:titleTextColor="@color/blue" />
+
+        <androidx.core.widget.NestedScrollView
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
+
+            <androidx.constraintlayout.widget.ConstraintLayout
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:animateLayoutChanges="true"
+                android:orientation="vertical">
+
+                <ImageView
+                    android:id="@+id/cover"
+                    android:layout_width="@dimen/cover_size_huge"
+                    android:layout_height="@dimen/cover_size_huge"
+                    android:layout_marginTop="@dimen/margin_medium"
+                    app:coverArt="@{album}"
+                    app:layout_constraintEnd_toEndOf="parent"
+                    app:layout_constraintStart_toStartOf="parent"
+                    app:layout_constraintTop_toTopOf="parent"
+                    tools:src="@drawable/ic_album" />
+
+                <androidx.appcompat.widget.AppCompatTextView
+                    android:id="@+id/artist_name"
+                    style="@style/DetailHeader"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="@dimen/margin_medium"
+                    android:layout_marginEnd="@dimen/margin_medium"
+                    android:layout_marginStart="@dimen/margin_medium"
+                    android:text="@{album.name}"
+                    app:autoSizeMaxTextSize="@dimen/detail_header_size_max"
+                    app:autoSizeMinTextSize="@dimen/detail_header_size_min"
+                    app:autoSizeStepGranularity="@dimen/detail_header_size_increment"
+                    app:autoSizeTextType="uniform"
+                    app:layout_constraintEnd_toEndOf="parent"
+                    app:layout_constraintHorizontal_bias="0.5"
+                    app:layout_constraintStart_toStartOf="parent"
+                    app:layout_constraintTop_toBottomOf="@+id/cover"
+                    tools:text="Album Name" />
+
+                <TextView
+                    android:id="@+id/album_year"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:textAppearance="?android:attr/textAppearanceListItem"
+                    android:textColor="?android:attr/textColorSecondary"
+                    android:layout_marginStart="@dimen/margin_medium"
+                    android:text="@{album.year}"
+                    app:layout_constraintStart_toStartOf="parent"
+                    app:layout_constraintTop_toBottomOf="@+id/artist_name"
+                    tools:text="2020" />
+
+                <TextView
+                    android:id="@+id/artist_counts"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:textAppearance="?android:attr/textAppearanceListItem"
+                    android:textColor="?android:attr/textColorSecondary"
+                    android:layout_marginStart="@dimen/margin_medium"
+                    app:songCount="@{album}"
+                    app:layout_constraintStart_toStartOf="parent"
+                    app:layout_constraintTop_toBottomOf="@+id/album_year"
+                    tools:text="20 Songs" />
+
+            </androidx.constraintlayout.widget.ConstraintLayout>
+        </androidx.core.widget.NestedScrollView>
+    </LinearLayout>
+
+</layout>

app/src/main/res/navigation/nav_main.xml

@@ -38,5 +38,21 @@
         <argument
             android:name="artistId"
             app:argType="long" />
+        <action
+            android:id="@+id/action_show_album"
+            app:enterAnim="@anim/fragment_fade_enter"
+            app:exitAnim="@anim/fragment_fade_exit"
+            app:popEnterAnim="@anim/fragment_fade_enter"
+            app:popExitAnim="@anim/fragment_fade_exit"
+            app:destination="@id/album_detail_fragment" />
+    </fragment>
+    <fragment
+        android:id="@+id/album_detail_fragment"
+        android:name="org.oxycblt.auxio.detail.AlbumDetailFragment"
+        android:label="AlbumDetailFragment"
+        tools:layout="@layout/fragment_album_detail">
+        <argument
+            android:name="albumId"
+            app:argType="long" />
     </fragment>
 </navigation>

app/src/main/res/transition/transition_to_main.xml

@@ -1,3 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<fade xmlns:android="http://schemas.android.com/apk/res/android"
-    android:duration="@android:integer/config_mediumAnimTime" />