Move album art loading to Coil

Move the album art loading to Coil to decrease initial loading times.

app/build.gradle

@@ -30,6 +30,10 @@ android {
     buildFeatures {
         dataBinding true
     }
+
+    kotlinOptions {
+        jvmTarget = "1.8"
+    }
 }
 
 configurations {
@@ -45,13 +49,16 @@ dependencies {
     // Support
     implementation 'androidx.core:core-ktx:1.3.1'
     implementation 'androidx.appcompat:appcompat:1.2.0'
-    implementation 'androidx.constraintlayout:constraintlayout:2.0.0-rc1'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.0'
 
     // Navigation
     def navigation_version = "2.3.0"
     implementation "androidx.navigation:navigation-fragment-ktx:$navigation_version"
     implementation "androidx.navigation:navigation-ui-ktx:$navigation_version"
 
+    // Image loading
+    implementation("io.coil-kt:coil:0.12.0")
+
     /*
     // Room Database
     def room_version = "2.2.5"

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

@@ -1,13 +1,13 @@
 package org.oxycblt.auxio.music.models
 
-import android.graphics.Bitmap
+import android.net.Uri
 
 // Abstraction for Song
 data class Album(
     val id: Long = 0L,
     val title: String = "",
     val artistName: String = "",
-    val cover: Bitmap? = null,
+    val coverUri: Uri = Uri.EMPTY,
     val year: Int = 0,
     var numSongs: Int = 0
 ) {

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

@@ -3,9 +3,6 @@ package org.oxycblt.auxio.music.processing
 import android.app.Application
 import android.content.ContentResolver
 import android.database.Cursor
-import android.graphics.ImageDecoder
-import android.os.Build
-import android.provider.MediaStore
 import android.provider.MediaStore.Audio.Albums
 import android.provider.MediaStore.Audio.Artists
 import android.provider.MediaStore.Audio.Genres
@@ -17,7 +14,6 @@ import org.oxycblt.auxio.music.models.Genre
 import org.oxycblt.auxio.music.models.Song
 import org.oxycblt.auxio.music.toAlbumArtURI
 import org.oxycblt.auxio.music.toNamedGenre
-import java.io.FileNotFoundException
 
 enum class MusicLoaderResponse {
     DONE, FAILURE, NO_MUSIC
@@ -193,29 +189,12 @@ class MusicLoader(private val app: Application) {
                 val year = cursor.getInt(yearIndex)
                 val numSongs = cursor.getInt(numIndex)
 
-                // TODO:
-                // Album art loading during the initial load isn't really practical for a large amount of albums
-                // Use glide or something
-                val artUri = id.toAlbumArtURI()
-
-                // Get the album art through either ImageDecoder or MediaStore depending on the
-                // version.
-                val cover = try {
-                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
-                        ImageDecoder.decodeBitmap(
-                            ImageDecoder.createSource(resolver, artUri)
-                        )
-                    } else {
-                        MediaStore.Images.Media.getBitmap(resolver, artUri)
-                    }
-                } catch (noFound: FileNotFoundException) {
-                    null
-                }
+                val coverUri = id.toAlbumArtURI()
 
                 albums.add(
                     Album(
                         id, name, artist,
-                        cover, year, numSongs
+                        coverUri, year, numSongs
                     )
                 )
             }

app/src/main/java/org/oxycblt/auxio/recycler/AlbumViewHolder.kt

@@ -1,6 +1,8 @@
 package org.oxycblt.auxio.recycler
 
+import android.net.Uri
 import androidx.recyclerview.widget.RecyclerView
+import coil.load
 import org.oxycblt.auxio.databinding.AlbumItemBinding
 import org.oxycblt.auxio.music.models.Album
 
@@ -13,12 +15,11 @@ class AlbumViewHolder(
     fun bind(album: Album) {
         binding.album = album
 
-        if (album.cover == null) {
-            // If there is no cover, clear the ImageView so that the previous
-            // View's cover doesn't stick around.
-            binding.cover.setImageResource(android.R.color.transparent)
-        } else {
-            binding.cover.setImageBitmap(album.cover)
+        // Load the album cover
+        binding.cover.load(album.coverUri) {
+            crossfade(true)
+            placeholder(android.R.color.transparent)
+            error(android.R.color.transparent)
         }
 
         binding.executePendingBindings()

build.gradle

@@ -1,6 +1,6 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 buildscript {
-    ext.kotlin_version = "1.3.72"
+    ext.kotlin_version = "1.4.0"
 
     repositories {
         google()