Remove cover/genre loading

Remove the cover loading [For now] and permanently remove the genre loading, as both take too long to do in the loading screen. Will re-add album loading once more UI is added.

app/build.gradle

@@ -47,10 +47,18 @@ dependencies {
     implementation 'androidx.appcompat:appcompat:1.2.0'
     implementation 'androidx.constraintlayout:constraintlayout:2.0.0-rc1'
 
+    // Navigation
     def navigation_version = "2.3.0"
     implementation "androidx.navigation:navigation-fragment-ktx:$navigation_version"
     implementation "androidx.navigation:navigation-ui-ktx:$navigation_version"
 
+    // Room Database
+    def room_version = "2.2.5"
+    kapt "androidx.room:room-compiler:$room_version"
+    implementation "androidx.room:room-runtime:$room_version"
+    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
+    implementation "androidx.lifecycle:lifecycle-extensions:2.2.0"
+
     // Lifecycle
     implementation "androidx.lifecycle:lifecycle-extensions:2.2.0"
 

app/src/main/java/org/oxycblt/auxio/loading/LoadingFragment.kt

@@ -72,13 +72,13 @@ class LoadingFragment : Fragment() {
                 // depending on which error response was given, along with a retry button
 
                 binding.loadingBar.visibility = View.GONE
-                binding.statusText.visibility = View.VISIBLE
+                binding.errorText.visibility = View.VISIBLE
                 binding.resetButton.visibility = View.VISIBLE
 
                 if (response == MusicLoaderResponse.NO_MUSIC) {
-                    binding.statusText.text = getString(R.string.error_no_music)
+                    binding.errorText.text = getString(R.string.error_no_music)
                 } else {
-                    binding.statusText.text = getString(R.string.error_music_load_failed)
+                    binding.errorText.text = getString(R.string.error_music_load_failed)
                 }
             }
 
@@ -89,7 +89,7 @@ class LoadingFragment : Fragment() {
     private fun onRetry(retry: Boolean) {
         if (retry) {
             binding.loadingBar.visibility = View.VISIBLE
-            binding.statusText.visibility = View.GONE
+            binding.errorText.visibility = View.GONE
             binding.resetButton.visibility = View.GONE
 
             loadingModel.doneWithRetry()

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

@@ -2,9 +2,7 @@ package org.oxycblt.auxio.music
 
 import android.app.Application
 import android.content.ContentResolver
-import android.content.ContentUris
 import android.database.Cursor
-import android.media.MediaMetadataRetriever
 import android.provider.MediaStore
 import android.provider.MediaStore.Audio.AudioColumns
 import android.util.Log
@@ -15,12 +13,11 @@ enum class MusicLoaderResponse {
 }
 
 // Class that loads music from the FileSystem.
-// This thing is probably full of memory leaks.
+// FIXME: This thing probably has some memory leaks *somewhere*
 class MusicLoader(private val app: Application) {
 
     var songs = mutableListOf<Song>()
 
-    private val retriever: MediaMetadataRetriever = MediaMetadataRetriever()
     private var musicCursor: Cursor? = null
 
     val response: MusicLoaderResponse
@@ -29,7 +26,7 @@ class MusicLoader(private val app: Application) {
         response = findMusic()
     }
 
-    private fun findMusic() : MusicLoaderResponse {
+    private fun findMusic(): MusicLoaderResponse {
         try {
             musicCursor = getCursor(
                 app.contentResolver
@@ -38,14 +35,11 @@ class MusicLoader(private val app: Application) {
             Log.i(this::class.simpleName, "Starting music search...")
 
             useCursor()
-
         } catch (error: Exception) {
-            // TODO: Add better error handling
-
             Log.e(this::class.simpleName, "Something went horribly wrong.")
             error.printStackTrace()
 
-            finalize()
+            musicCursor?.close()
 
             return MusicLoaderResponse.FAILURE
         }
@@ -72,11 +66,20 @@ class MusicLoader(private val app: Application) {
     private fun getCursor(resolver: ContentResolver): Cursor? {
         Log.i(this::class.simpleName, "Getting music cursor.")
 
+        // Get all the values that can be retrieved by the cursor.
+        // The rest are retrieved using MediaMetadataExtractor and
+        // stored into a database.
         return resolver.query(
             MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,
             arrayOf(
-                AudioColumns._ID,
+                AudioColumns._ID, // 0
-                AudioColumns.DISPLAY_NAME
+                AudioColumns.DISPLAY_NAME, // 1
+                AudioColumns.TITLE, // 2
+                AudioColumns.ARTIST, // 3
+                AudioColumns.ALBUM, // 4
+                AudioColumns.YEAR, // 5
+                AudioColumns.TRACK, // 6
+                AudioColumns.DURATION // 7
             ),
             AudioColumns.IS_MUSIC + "=1", null,
             MediaStore.Audio.Media.DEFAULT_SORT_ORDER
@@ -94,81 +97,35 @@ class MusicLoader(private val app: Application) {
 
             val idIndex = cursor.getColumnIndexOrThrow(AudioColumns._ID)
             val displayIndex = cursor.getColumnIndexOrThrow(AudioColumns.DISPLAY_NAME)
+            val titleIndex = cursor.getColumnIndexOrThrow(AudioColumns.TITLE)
+            val artistIndex = cursor.getColumnIndexOrThrow(AudioColumns.ARTIST)
+            val albumIndex = cursor.getColumnIndexOrThrow(AudioColumns.ALBUM)
+            val yearIndex = cursor.getColumnIndexOrThrow(AudioColumns.YEAR)
+            val trackIndex = cursor.getColumnIndexOrThrow(AudioColumns.TRACK)
+            val durationIndex = cursor.getColumnIndexOrThrow(AudioColumns.DURATION)
 
             while (cursor.moveToNext()) {
                 val id = cursor.getLong(idIndex)
 
-                // Read the current file from the ID
+                // Get the basic metadata from the cursor
-                retriever.setDataSource(
+                val title = cursor.getString(titleIndex) ?: cursor.getString(displayIndex)
-                    app.applicationContext,
+                val artist = cursor.getString(artistIndex)
-                    ContentUris.withAppendedId(
+                val album = cursor.getString(albumIndex)
-                        MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,
+                val year = cursor.getInt(yearIndex)
-                        id
+                val track = cursor.getInt(trackIndex)
-                    )
+                val duration = cursor.getLong(durationIndex)
-                )
 
-                // Get the metadata attributes
+                // TODO: Add album art [But its loaded separately, as that will take a bit]
-                val title = retriever.extractMetadata(
+                // TODO: Add genres whenever android hasn't borked it
-                    MediaMetadataRetriever.METADATA_KEY_TITLE
-                ) ?: cursor.getString(displayIndex)
-
-                val artist = retriever.extractMetadata(
-                    MediaMetadataRetriever.METADATA_KEY_ARTIST
-                )
-
-                val album = retriever.extractMetadata(
-                    MediaMetadataRetriever.METADATA_KEY_ALBUM
-                )
-
-                val genre = retriever.extractMetadata(
-                    MediaMetadataRetriever.METADATA_KEY_GENRE
-                )
-
-                val year = (
-                    retriever.extractMetadata(
-                        MediaMetadataRetriever.METADATA_KEY_YEAR
-                    ) ?: "0"
-                    ).toInt()
-
-                // Track is formatted as X/0, so trim off the /0 part to parse
-                // the track number correctly.
-                val track = (
-                    retriever.extractMetadata(
-                        MediaMetadataRetriever.METADATA_KEY_CD_TRACK_NUMBER
-                    ) ?: "0/0"
-                    ).split("/")[0].toInt()
-
-                // Something has gone horribly wrong if a file has no duration,
-                // so assert it as such.
-                val duration = retriever.extractMetadata(
-                    MediaMetadataRetriever.METADATA_KEY_DURATION
-                )!!.toLong()
-
-                // TODO: Add int-based genre compatibility
                 songs.add(
                     Song(
-                        title,
+                        id, title, artist, album,
-                        artist,
+                        year, track, duration
-                        album,
-                        genre,
-                        year,
-                        track,
-                        duration,
-
-                        retriever.embeddedPicture,
-                        id
-
                     )
                 )
             }
-        }
-    }
 
-    // Free the metadata retriever & the musicCursor, and make the song list immutable.
+            cursor.close()
-    private fun finalize() {
-        retriever.close()
-        musicCursor?.use{
-            it.close()
         }
     }
 }

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

@@ -1,13 +1,11 @@
 package org.oxycblt.auxio.music
 
-import android.util.Log
 import org.oxycblt.auxio.music.models.Album
 import org.oxycblt.auxio.music.models.Artist
 import org.oxycblt.auxio.music.models.Song
 
-
 // Sort a list of Song objects into lists of songs, albums, and artists.
-fun processSongs(songs: MutableList<Song>) : MutableList<Song> {
+fun processSongs(songs: MutableList<Song>): MutableList<Song> {
     // Eliminate all duplicates from the list
     // excluding the ID, as that's guaranteed to be unique [I think]
     return songs.distinctBy {
@@ -16,7 +14,7 @@ fun processSongs(songs: MutableList<Song>) : MutableList<Song> {
 }
 
 // Sort a list of song objects into albums
-fun sortIntoAlbums(songs: MutableList<Song>) : MutableList<Album> {
+fun sortIntoAlbums(songs: MutableList<Song>): MutableList<Album> {
     val songsByAlbum = songs.groupBy { it.album }
     val albumList = mutableListOf<Album>()
 
@@ -33,7 +31,7 @@ fun sortIntoAlbums(songs: MutableList<Song>) : MutableList<Album> {
 }
 
 // Sort a list of album objects into artists
-fun sortIntoArtists(albums: MutableList<Album>) : MutableList<Artist> {
+fun sortIntoArtists(albums: MutableList<Album>): MutableList<Artist> {
     val albumsByArtist = albums.groupBy { it.artist }
     val artistList = mutableListOf<Artist>()
 

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

@@ -1,20 +1,16 @@
 package org.oxycblt.auxio.music.models
 
-import android.graphics.Bitmap
-
 // Abstraction for Song
 data class Album(
     var songs: List<Song>
 ) {
     var title: String? = null
     var artist: String? = null
-    var genre: String? = null
-    var cover: Bitmap? = null
     var year: Int = 0
 
     init {
         // Iterate through the child songs and inherit the first valid value
-        // for the Album Name, Artist, Genre, Year, and Cover
+        // for the Album Name, Artist, and Year
         for (song in songs) {
             if (song.album != null) {
                 title = song.album
@@ -24,14 +20,6 @@ data class Album(
                 artist = song.artist
             }
 
-            if (song.genre != null) {
-                genre = song.genre
-            }
-
-            if (song.cover != null) {
-                cover = song.cover
-            }
-
             if (song.year != 0) {
                 year = song.year
             }

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

@@ -5,21 +5,13 @@ data class Artist(
     private var albums: List<Album>
 ) {
     var name: String? = null
-    var genre: String? = null
-
-    // TODO: Artist photos
 
     init {
-        // Like Album, iterate through the child albums and pick out the first valid
+        // Like Album, iterate through the child albums and pick out the first valid for artist
-        // tag for Album/Genre
         for (album in albums) {
             if (album.artist != null) {
                 name = album.artist
             }
-
-            if (album.genre != null) {
-                genre = album.genre
-            }
         }
 
         // Also sort the mAlbums by year

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

@@ -1,32 +1,13 @@
 package org.oxycblt.auxio.music.models
 
-import android.graphics.Bitmap
-import android.graphics.BitmapFactory
-
 // Class containing all relevant values for a song.
 data class Song(
+    val id: Long,
     val name: String?,
     val artist: String?,
     val album: String?,
-    val genre: String?,
     val year: Int,
     val track: Int,
     val duration: Long,
-
+    val coverData: ByteArray? = null
-    private val coverData: ByteArray?,
+)
-    val id: Long
-) {
-    var cover: Bitmap? = null
-
-    init {
-        coverData?.let { data ->
-            // Decode the Album Cover ByteArray if not null.
-            val options = BitmapFactory.Options()
-            options.inMutable = true
-
-            cover = BitmapFactory.decodeByteArray(
-                data, 0, data.size, options
-            )
-        }
-    }
-}

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

@@ -21,7 +21,7 @@
             android:indeterminateTint="?attr/colorAccent"
             android:indeterminateTintMode="src_in"
             android:paddingBottom="@dimen/padding_small"
-            app:layout_constraintBottom_toTopOf="@+id/status_text"
+            app:layout_constraintBottom_toTopOf="@+id/error_text"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintHorizontal_bias="0.5"
             app:layout_constraintStart_toStartOf="parent"
@@ -29,15 +29,15 @@
             app:layout_constraintVertical_chainStyle="packed" />
 
         <TextView
-            android:id="@+id/status_text"
+            android:id="@+id/error_text"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:text="@string/status_loading_music"
             app:layout_constraintBottom_toTopOf="@+id/reset_button"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintHorizontal_bias="0.5"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@+id/loading_bar" />
+            app:layout_constraintTop_toBottomOf="@+id/loading_bar"
+            tools:text="@string/error_music_load_failed" />
 
         <Button
             android:id="@+id/reset_button"
@@ -51,7 +51,8 @@
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintHorizontal_bias="0.5"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@+id/status_text" />
+            app:layout_constraintTop_toBottomOf="@+id/error_text"
+            tools:visibility="visible" />
 
     </androidx.constraintlayout.widget.ConstraintLayout>
 </layout>

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

@@ -2,8 +2,6 @@
 <resources>
     <string name="app_name">Auxio</string>
 
-    <string name="status_loading_music">Scanning your music library for the first time...</string>
-
     <string name="error_no_music">No music found.</string>
     <string name="error_music_load_failed">Music loading failed.</string>