Merge branch 'dev' of https://github.com/tnyeanderson/RetroMusicPlayer into pr/889

app/build.gradle

@@ -107,6 +107,7 @@ dependencies {
     implementation 'androidx.palette:palette-ktx:1.0.0'
 
     def nav_version = "2.3.0"
+    implementation "androidx.navigation:navigation-runtime-ktx:$nav_version"
     implementation "androidx.navigation:navigation-fragment-ktx:$nav_version"
     implementation "androidx.navigation:navigation-ui-ktx:$nav_version"
 

app/src/main/assets/contributors.json

@@ -13,13 +13,13 @@
   },
   {
     "name": "Daksh P. Jain",
-    "summary": "Telegram group maintainer",
+    "summary": "Support Representative & Moderator",
-    "link": "https://dakshpjain.eu.org",
+    "link": "https://daksh.eu.org",
     "profile_image": "https://i.imgur.com/fnYpg65.jpg"
   },
   {
     "name": "Milind Goel",
-    "summary": "Github & Telegram maintainer",
+    "summary": "Support Representative & Moderator",
     "link": "https://t.me/MilindGoel15",
     "profile_image": "https://i.imgur.com/Bz4De21_d.jpg"
   }

app/src/main/java/code/name/monkey/retromusic/MainModule.kt

@@ -162,14 +162,14 @@ private val viewModules = module {
         LibraryViewModel(get())
     }
 
-    viewModel { (albumId: Int) ->
+    viewModel { (albumId: Long) ->
         AlbumDetailsViewModel(
             get(),
             albumId
         )
     }
 
-    viewModel { (artistId: Int) ->
+    viewModel { (artistId: Long) ->
         ArtistDetailsViewModel(
             get(),
             artistId

app/src/main/java/code/name/monkey/retromusic/activities/MainActivity.kt

@@ -28,8 +28,6 @@ class MainActivity : AbsSlidingMusicPanelActivity(), OnSharedPreferenceChangeLis
         const val APP_UPDATE_REQUEST_CODE = 9002
     }
 
-    private var blockRequestPermissions = false
-
     override fun createContentView(): View {
         return wrapSlidingMusicPanel(R.layout.activity_main_content)
     }
@@ -64,14 +62,6 @@ class MainActivity : AbsSlidingMusicPanelActivity(), OnSharedPreferenceChangeLis
         }
     }
 
-
-    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
-        super.onActivityResult(requestCode, resultCode, data)
-        if (!hasPermissions()) {
-            //requestPermissions()
-        }
-    }
-
     override fun onSharedPreferenceChanged(sharedPreferences: SharedPreferences?, key: String?) {
         if (key == GENERAL_THEME || key == BLACK_THEME || key == ADAPTIVE_COLOR_APP || key == USER_NAME || key == TOGGLE_FULL_SCREEN || key == TOGGLE_VOLUME || key == ROUND_CORNERS || key == CAROUSEL_EFFECT || key == NOW_PLAYING_SCREEN_ID || key == TOGGLE_GENRE || key == BANNER_IMAGE_PATH || key == PROFILE_IMAGE_PATH || key == CIRCULAR_ALBUM_ART || key == KEEP_SCREEN_ON || key == TOGGLE_SEPARATE_LINE || key == TOGGLE_HOME_BANNER || key == TOGGLE_ADD_CONTROLS || key == ALBUM_COVER_STYLE || key == HOME_ARTIST_GRID_STYLE || key == ALBUM_COVER_TRANSFORM || key == DESATURATED_COLOR || key == EXTRA_SONG_INFO || key == TAB_TEXT_MODE || key == LANGUAGE_NAME || key == LIBRARY_CATEGORIES
         ) {
@@ -107,8 +97,8 @@ class MainActivity : AbsSlidingMusicPanelActivity(), OnSharedPreferenceChangeLis
                 MusicPlayerRemote.playFromUri(uri)
                 handled = true
             } else if (MediaStore.Audio.Playlists.CONTENT_TYPE == mimeType) {
-                val id: Int = parseIdFromIntent(intent, "playlistId", "playlist").toInt()
+                val id = parseLongFromIntent(intent, "playlistId", "playlist")
-                if (id >= 0) {
+                if (id >= 0L) {
                     val position: Int = intent.getIntExtra("position", 0)
                     val songs: List<Song> =
                         PlaylistSongsLoader.getPlaylistSongList(this@MainActivity, id)
@@ -116,19 +106,19 @@ class MainActivity : AbsSlidingMusicPanelActivity(), OnSharedPreferenceChangeLis
                     handled = true
                 }
             } else if (MediaStore.Audio.Albums.CONTENT_TYPE == mimeType) {
-                val id = parseIdFromIntent(intent, "albumId", "album").toInt()
+                val id = parseLongFromIntent(intent, "albumId", "album")
-                if (id >= 0) {
+                if (id >= 0L) {
                     val position: Int = intent.getIntExtra("position", 0)
                     MusicPlayerRemote.openQueue(
-                        libraryViewModel.albumById(id).songs!!,
+                        libraryViewModel.albumById(id).songs,
                         position,
                         true
                     )
                     handled = true
                 }
             } else if (MediaStore.Audio.Artists.CONTENT_TYPE == mimeType) {
-                val id: Int = parseIdFromIntent(intent, "artistId", "artist").toInt()
+                val id = parseLongFromIntent(intent, "artistId", "artist")
-                if (id >= 0) {
+                if (id >= 0L) {
                     val position: Int = intent.getIntExtra("position", 0)
                     MusicPlayerRemote.openQueue(
                         libraryViewModel.artistById(id).songs,
@@ -145,7 +135,7 @@ class MainActivity : AbsSlidingMusicPanelActivity(), OnSharedPreferenceChangeLis
 
     }
 
-    private fun parseIdFromIntent(
+    private fun parseLongFromIntent(
         intent: Intent, longKey: String,
         stringKey: String
     ): Long {

app/src/main/java/code/name/monkey/retromusic/activities/tageditor/AbsTagEditorActivity.kt

@@ -40,7 +40,7 @@ abstract class AbsTagEditorActivity : AbsBaseActivity() {
     val repository by inject<Repository>()
 
     lateinit var saveFab: MaterialButton
-    protected var id: Int = 0
+    protected var id: Long = 0
         private set
     private var paletteColorPrimary: Int = 0
     private var isInNoImageMode: Boolean = false
@@ -251,7 +251,7 @@ abstract class AbsTagEditorActivity : AbsBaseActivity() {
     private fun getIntentExtras() {
         val intentExtras = intent.extras
         if (intentExtras != null) {
-            id = intentExtras.getInt(EXTRA_ID)
+            id = intentExtras.getLong(EXTRA_ID)
         }
     }
 
@@ -396,7 +396,7 @@ abstract class AbsTagEditorActivity : AbsBaseActivity() {
         }
     }
 
-    class ArtworkInfo constructor(val albumId: Int, val artwork: Bitmap?)
+    class ArtworkInfo constructor(val albumId: Long, val artwork: Bitmap?)
 
     companion object {
 

app/src/main/java/code/name/monkey/retromusic/activities/tageditor/AlbumTagEditorActivity.kt

@@ -18,6 +18,7 @@ import code.name.monkey.retromusic.R
 import code.name.monkey.retromusic.extensions.appHandleColor
 import code.name.monkey.retromusic.glide.palette.BitmapPaletteTranscoder
 import code.name.monkey.retromusic.glide.palette.BitmapPaletteWrapper
+import code.name.monkey.retromusic.model.Song
 import code.name.monkey.retromusic.util.ImageUtil
 import code.name.monkey.retromusic.util.RetroColorUtil.generatePalette
 import code.name.monkey.retromusic.util.RetroColorUtil.getColor
@@ -168,12 +169,8 @@ class AlbumTagEditorActivity : AbsTagEditorActivity(), TextWatcher {
     }
 
     override fun getSongPaths(): List<String> {
-        val songs = repository.albumById(id).songs
+        return repository.albumById(id).songs
-        val paths = ArrayList<String>(songs!!.size)
+            .map(Song::data)
-        for (song in songs) {
-            paths.add(song.data)
-        }
-        return paths
     }
 
     override fun beforeTextChanged(s: CharSequence, start: Int, count: Int, after: Int) {

app/src/main/java/code/name/monkey/retromusic/adapter/CategoryInfoAdapter.java

@@ -71,13 +71,13 @@ public class CategoryInfoAdapter extends RecyclerView.Adapter<CategoryInfoAdapte
     public void onBindViewHolder(@NonNull CategoryInfoAdapter.ViewHolder holder, int position) {
         CategoryInfo categoryInfo = categoryInfos.get(position);
 
-        holder.checkBox.setChecked(categoryInfo.visible);
+        holder.checkBox.setChecked(categoryInfo.isVisible());
-        holder.title.setText(holder.title.getResources().getString(categoryInfo.category.stringRes));
+        holder.title.setText(holder.title.getResources().getString(categoryInfo.getCategory().getStringRes()));
 
         holder.itemView.setOnClickListener(v -> {
-            if (!(categoryInfo.visible && isLastCheckedCategory(categoryInfo))) {
+            if (!(categoryInfo.isVisible() && isLastCheckedCategory(categoryInfo))) {
-                categoryInfo.visible = !categoryInfo.visible;
+                categoryInfo.setVisible(!categoryInfo.isVisible());
-                holder.checkBox.setChecked(categoryInfo.visible);
+                holder.checkBox.setChecked(categoryInfo.isVisible());
             } else {
                 Toast.makeText(holder.itemView.getContext(), R.string.you_have_to_select_at_least_one_category,
                         Toast.LENGTH_SHORT).show();
@@ -110,9 +110,9 @@ public class CategoryInfoAdapter extends RecyclerView.Adapter<CategoryInfoAdapte
     }
 
     private boolean isLastCheckedCategory(CategoryInfo categoryInfo) {
-        if (categoryInfo.visible) {
+        if (categoryInfo.isVisible()) {
             for (CategoryInfo c : categoryInfos) {
-                if (c != categoryInfo && c.visible) {
+                if (c != categoryInfo && c.isVisible()) {
                     return false;
                 }
             }

app/src/main/java/code/name/monkey/retromusic/adapter/HomeAdapter.kt

@@ -233,7 +233,7 @@ class HomeAdapter(
     fun gridLayoutManager() = GridLayoutManager(activity, 1, GridLayoutManager.HORIZONTAL, false)
     fun linearLayoutManager() = LinearLayoutManager(activity, LinearLayoutManager.HORIZONTAL, false)
 
-    override fun onArtist(artistId: Int, imageView: ImageView) {
+    override fun onArtist(artistId: Long, imageView: ImageView) {
         activity.findNavController(R.id.fragment_container).navigate(
             R.id.artistDetailsFragment,
             bundleOf(EXTRA_ARTIST_ID to artistId),
@@ -244,7 +244,7 @@ class HomeAdapter(
         )
     }
 
-    override fun onAlbumClick(albumId: Int, view: View) {
+    override fun onAlbumClick(albumId: Long, view: View) {
         activity.findNavController(R.id.fragment_container).navigate(
             R.id.albumDetailsFragment,
             bundleOf(EXTRA_ALBUM_ID to albumId),

app/src/main/java/code/name/monkey/retromusic/adapter/album/AlbumAdapter.kt

@@ -136,7 +136,7 @@ open class AlbumAdapter(
     private fun getSongList(albums: List<Album>): List<Song> {
         val songs = ArrayList<Song>()
         for (album in albums) {
-            songs.addAll(album.songs!!)
+            songs.addAll(album.songs)
         }
         return songs
     }
@@ -170,8 +170,7 @@ open class AlbumAdapter(
             if (isInQuickSelectMode) {
                 toggleChecked(layoutPosition)
             } else {
-                println(dataSet[layoutPosition].id)
+                albumClickListener?.onAlbumClick(dataSet[layoutPosition].id, itemView)
-                image?.let { albumClickListener?.onAlbumClick(dataSet[layoutPosition].id, it) }
             }
         }
 

app/src/main/java/code/name/monkey/retromusic/adapter/album/AlbumCoverPagerAdapter.kt

@@ -9,7 +9,6 @@ import androidx.fragment.app.Fragment
 import androidx.fragment.app.FragmentManager
 import androidx.lifecycle.lifecycleScope
 import code.name.monkey.retromusic.R
-import code.name.monkey.retromusic.dialogs.LyricsDialog
 import code.name.monkey.retromusic.fragments.AlbumCoverStyle
 import code.name.monkey.retromusic.fragments.NowPlayingScreen.*
 import code.name.monkey.retromusic.glide.RetroMusicColoredTarget
@@ -91,7 +90,7 @@ class AlbumCoverPagerAdapter(
             val view = inflater.inflate(getLayoutWithPlayerTheme(), container, false)
             albumCover = view.findViewById(R.id.player_image)
             albumCover.setOnClickListener {
-                LyricsDialog().show(childFragmentManager, "LyricsDialog")
+                //LyricsDialog().show(childFragmentManager, "LyricsDialog")
                 showLyricsDialog()
             }
             return view

app/src/main/java/code/name/monkey/retromusic/adapter/base/MediaEntryViewHolder.java

@@ -113,6 +113,7 @@ public class MediaEntryViewHolder extends AbstractDraggableSwipeableItemViewHold
         itemView.setOnLongClickListener(this);
     }
 
+    @Nullable
     @Override
     public View getSwipeableContainerView() {
         return null;
@@ -129,11 +130,12 @@ public class MediaEntryViewHolder extends AbstractDraggableSwipeableItemViewHold
     }
 
     public void setImageTransitionName(@NonNull String transitionName) {
-        if (imageContainerCard != null) {
+        itemView.setTransitionName(transitionName);
+        /* if (imageContainerCard != null) {
             imageContainerCard.setTransitionName(transitionName);
         }
         if (image != null) {
             image.setTransitionName(transitionName);
-        }
+        }*/
     }
 }

app/src/main/java/code/name/monkey/retromusic/adapter/song/OrderablePlaylistSongAdapter.kt

@@ -6,6 +6,7 @@ import androidx.fragment.app.FragmentActivity
 import code.name.monkey.retromusic.R
 import code.name.monkey.retromusic.R.menu
 import code.name.monkey.retromusic.db.PlaylistEntity
+import code.name.monkey.retromusic.db.toSongEntity
 import code.name.monkey.retromusic.db.toSongs
 import code.name.monkey.retromusic.dialogs.RemoveSongFromPlaylistDialog
 import code.name.monkey.retromusic.interfaces.CabHolder

app/src/main/java/code/name/monkey/retromusic/db/HistoryDao.kt

@@ -13,7 +13,7 @@ interface HistoryDao {
     suspend fun insertSongInHistory(historyEntity: HistoryEntity)
 
     @Query("SELECT * FROM HistoryEntity WHERE id = :songId LIMIT 1")
-    suspend fun isSongPresentInHistory(songId: Int): HistoryEntity?
+    suspend fun isSongPresentInHistory(songId: Long): HistoryEntity?
 
     @Update
     suspend fun updateHistorySong(historyEntity: HistoryEntity)

app/src/main/java/code/name/monkey/retromusic/db/HistoryEntity.kt

@@ -7,7 +7,7 @@ import androidx.room.PrimaryKey
 @Entity
 class HistoryEntity(
     @PrimaryKey
-    val id: Int,
+    val id: Long,
     val title: String,
     @ColumnInfo(name = "track_number")
     val trackNumber: Int,
@@ -17,11 +17,11 @@ class HistoryEntity(
     @ColumnInfo(name = "date_modified")
     val dateModified: Long,
     @ColumnInfo(name = "album_id")
-    val albumId: Int,
+    val albumId: Long,
     @ColumnInfo(name = "album_name")
     val albumName: String,
     @ColumnInfo(name = "artist_id")
-    val artistId: Int,
+    val artistId: Long,
     @ColumnInfo(name = "artist_name")
     val artistName: String,
     val composer: String?,

app/src/main/java/code/name/monkey/retromusic/db/PlayCountDao.kt

@@ -14,14 +14,14 @@ interface PlayCountDao {
     fun deleteSongInPlayCount(playCountEntity: PlayCountEntity)
 
     @Query("SELECT * FROM PlayCountEntity WHERE id =:songId")
-    fun checkSongExistInPlayCount(songId: Int): List<PlayCountEntity>
+    fun checkSongExistInPlayCount(songId: Long): List<PlayCountEntity>
 
     @Query("SELECT * FROM PlayCountEntity ORDER BY play_count DESC")
     fun playCountSongs(): List<PlayCountEntity>
 
     @Query("DELETE FROM SongEntity WHERE id =:songId")
-    fun deleteSong(songId: Int)
+    fun deleteSong(songId: Long)
 
     @Query("UPDATE PlayCountEntity SET play_count = play_count + 1 WHERE id = :id")
-    fun updateQuantity(id: Int)
+    fun updateQuantity(id: Long)
 }

app/src/main/java/code/name/monkey/retromusic/db/PlayCountEntity.kt

@@ -7,7 +7,7 @@ import androidx.room.PrimaryKey
 @Entity
 class PlayCountEntity(
     @PrimaryKey
-    val id: Int,
+    val id: Long,
     val title: String,
     @ColumnInfo(name = "track_number")
     val trackNumber: Int,
@@ -17,11 +17,11 @@ class PlayCountEntity(
     @ColumnInfo(name = "date_modified")
     val dateModified: Long,
     @ColumnInfo(name = "album_id")
-    val albumId: Int,
+    val albumId: Long,
     @ColumnInfo(name = "album_name")
     val albumName: String,
     @ColumnInfo(name = "artist_id")
-    val artistId: Int,
+    val artistId: Long,
     @ColumnInfo(name = "artist_name")
     val artistName: String,
     val composer: String?,

app/src/main/java/code/name/monkey/retromusic/db/PlaylistDao.kt

@@ -9,7 +9,7 @@ interface PlaylistDao {
     suspend fun createPlaylist(playlistEntity: PlaylistEntity): Long
 
     @Query("UPDATE PlaylistEntity SET playlist_name = :name WHERE playlist_id = :playlistId")
-    suspend fun renamePlaylist(playlistId: Int, name: String)
+    suspend fun renamePlaylist(playlistId: Long, name: String)
 
     @Query("SELECT * FROM PlaylistEntity WHERE playlist_name = :name")
     fun isPlaylistExists(name: String): List<PlaylistEntity>
@@ -18,10 +18,10 @@ interface PlaylistDao {
     suspend fun playlists(): List<PlaylistEntity>
 
     @Query("DELETE FROM SongEntity WHERE playlist_creator_id = :playlistId")
-    suspend fun deletePlaylistSongs(playlistId: Int)
+    suspend fun deletePlaylistSongs(playlistId: Long)
 
     @Query("DELETE FROM SongEntity WHERE playlist_creator_id = :playlistId AND id = :songId")
-    suspend fun deleteSongFromPlaylist(playlistId: Int, songId: Int)
+    suspend fun deleteSongFromPlaylist(playlistId: Long, songId: Long)
 
     @Transaction
     @Query("SELECT * FROM PlaylistEntity")
@@ -31,10 +31,10 @@ interface PlaylistDao {
     suspend fun insertSongsToPlaylist(songEntities: List<SongEntity>)
 
     @Query("SELECT * FROM SongEntity WHERE playlist_creator_id = :playlistId AND id = :songId")
-    suspend fun isSongExistsInPlaylist(playlistId: Int, songId: Int): List<SongEntity>
+    suspend fun isSongExistsInPlaylist(playlistId: Long, songId: Long): List<SongEntity>
 
     @Query("SELECT * FROM SongEntity WHERE playlist_creator_id = :playlistId")
-    fun songsFromPlaylist(playlistId: Int): LiveData<List<SongEntity>>
+    fun songsFromPlaylist(playlistId: Long): LiveData<List<SongEntity>>
 
     @Delete
     suspend fun deletePlaylist(playlistEntity: PlaylistEntity)
@@ -47,10 +47,10 @@ interface PlaylistDao {
 
 
     @Query("SELECT * FROM SongEntity WHERE playlist_creator_id= :playlistId")
-    fun favoritesSongsLiveData(playlistId: Int): LiveData<List<SongEntity>>
+    fun favoritesSongsLiveData(playlistId: Long): LiveData<List<SongEntity>>
 
     @Query("SELECT * FROM SongEntity WHERE playlist_creator_id= :playlistId")
-    fun favoritesSongs(playlistId: Int): List<SongEntity>
+    fun favoritesSongs(playlistId: Long): List<SongEntity>
 
 
 }

app/src/main/java/code/name/monkey/retromusic/db/PlaylistEntity.kt

@@ -9,10 +9,9 @@ import kotlinx.android.parcel.Parcelize
 @Entity
 @Parcelize
 class PlaylistEntity(
-    @ColumnInfo(name = "playlist_name")
-    val playlistName: String
-) : Parcelable {
     @PrimaryKey(autoGenerate = true)
     @ColumnInfo(name = "playlist_id")
-    var playListId: Int = 0
+    val playListId: Long = 0,
-}
+    @ColumnInfo(name = "playlist_name")
+    val playlistName: String
+) : Parcelable

app/src/main/java/code/name/monkey/retromusic/db/SongEntity.kt

@@ -10,9 +10,12 @@ import kotlinx.android.parcel.Parcelize
 @Parcelize
 @Entity(indices = [Index(value = ["playlist_creator_id", "id"], unique = true)])
 class SongEntity(
+    @PrimaryKey(autoGenerate = true)
+    @ColumnInfo(name = "song_key")
+    val songPrimaryKey: Long = 0L,
     @ColumnInfo(name = "playlist_creator_id")
-    val playlistCreatorId: Int,
+    val playlistCreatorId: Long,
-    val id: Int,
+    val id: Long,
     val title: String,
     @ColumnInfo(name = "track_number")
     val trackNumber: Int,
@@ -22,19 +25,15 @@ class SongEntity(
     @ColumnInfo(name = "date_modified")
     val dateModified: Long,
     @ColumnInfo(name = "album_id")
-    val albumId: Int,
+    val albumId: Long,
     @ColumnInfo(name = "album_name")
     val albumName: String,
     @ColumnInfo(name = "artist_id")
-    val artistId: Int,
+    val artistId: Long,
     @ColumnInfo(name = "artist_name")
     val artistName: String,
     val composer: String?,
     @ColumnInfo(name = "album_artist")
     val albumArtist: String?
-) : Parcelable {
+) : Parcelable
-    @PrimaryKey(autoGenerate = true)
-    @ColumnInfo(name = "song_key")
-    var songPrimaryKey: Long = 0
-}
 

app/src/main/java/code/name/monkey/retromusic/db/SongExtension.kt

@@ -8,83 +8,121 @@ fun List<SongEntity>.toSongs(): List<Song> {
     }
 }
 
-fun List<Song>.toSongs(playlistId: Int): List<SongEntity> {
+fun List<Song>.toSongs(playlistId: Long): List<SongEntity> {
     return map {
         it.toSongEntity(playlistId)
     }
 }
 
+fun Song.toHistoryEntity(timePlayed: Long): HistoryEntity {
+    return HistoryEntity(
+        id = id,
+        title = title,
+        trackNumber = trackNumber,
+        year = year,
+        duration = duration,
+        data = data,
+        dateModified = dateModified,
+        albumId = albumId,
+        albumName = albumName,
+        artistId = artistId,
+        artistName = artistName,
+        composer = composer,
+        albumArtist = albumArtist,
+        timePlayed = timePlayed
+    )
+}
+
+fun Song.toSongEntity(playListId: Long): SongEntity {
+    return SongEntity(
+        playlistCreatorId = playListId,
+        id = id,
+        title = title,
+        trackNumber = trackNumber,
+        year = year,
+        duration = duration,
+        data = data,
+        dateModified = dateModified,
+        albumId = albumId,
+        albumName = albumName,
+        artistId = artistId,
+        artistName = artistName,
+        composer = composer,
+        albumArtist = albumArtist
+    )
+}
+
 fun SongEntity.toSong(): Song {
     return Song(
-        id,
+        id = id,
-        title,
+        title = title,
-        trackNumber,
+        trackNumber = trackNumber,
-        year,
+        year = year,
-        duration,
+        duration = duration,
-        data,
+        data = data,
-        dateModified,
+        dateModified = dateModified,
-        albumId,
+        albumId = albumId,
-        albumName,
+        albumName = albumName,
-        artistId,
+        artistId = artistId,
-        artistName,
+        artistName = artistName,
-        composer,
+        composer = composer,
-        albumArtist
+        albumArtist = albumArtist
     )
 }
 
 fun PlayCountEntity.toSong(): Song {
     return Song(
-        id,
+        id = id,
-        title,
+        title = title,
-        trackNumber,
+        trackNumber = trackNumber,
-        year,
+        year = year,
-        duration,
+        duration = duration,
-        data,
+        data = data,
-        dateModified,
+        dateModified = dateModified,
-        albumId,
+        albumId = albumId,
-        albumName,
+        albumName = albumName,
-        artistId,
+        artistId = artistId,
-        artistName,
+        artistName = artistName,
-        composer,
+        composer = composer,
-        albumArtist
+        albumArtist = albumArtist
     )
 }
 
 fun HistoryEntity.toSong(): Song {
     return Song(
-        id,
+        id = id,
-        title,
+        title = title,
-        trackNumber,
+        trackNumber = trackNumber,
-        year,
+        year = year,
-        duration,
+        duration = duration,
-        data,
+        data = data,
-        dateModified,
+        dateModified = dateModified,
-        albumId,
+        albumId = albumId,
-        albumName,
+        albumName = albumName,
-        artistId,
+        artistId = artistId,
-        artistName,
+        artistName = artistName,
-        composer,
+        composer = composer,
-        albumArtist
+        albumArtist = albumArtist
     )
 }
 
 fun Song.toPlayCount(): PlayCountEntity {
     return PlayCountEntity(
-        id,
+        id = id,
-        title,
+        title = title,
-        trackNumber,
+        trackNumber = trackNumber,
-        year,
+        year = year,
-        duration,
+        duration = duration,
-        data,
+        data = data,
-        dateModified,
+        dateModified = dateModified,
-        albumId,
+        albumId = albumId,
-        albumName,
+        albumName = albumName,
-        artistId,
+        artistId = artistId,
-        artistName,
+        artistName = artistName,
-        composer,
+        composer = composer,
-        albumArtist,
+        albumArtist = albumArtist,
-        System.currentTimeMillis(),
+        timePlayed = System.currentTimeMillis(),
-        1
+        playCount = 1
     )
 }
 

app/src/main/java/code/name/monkey/retromusic/dialogs/CreatePlaylistDialog.kt

@@ -11,6 +11,7 @@ import androidx.lifecycle.lifecycleScope
 import code.name.monkey.retromusic.EXTRA_SONG
 import code.name.monkey.retromusic.R
 import code.name.monkey.retromusic.db.PlaylistEntity
+import code.name.monkey.retromusic.db.toSongEntity
 import code.name.monkey.retromusic.extensions.colorButtons
 import code.name.monkey.retromusic.extensions.extra
 import code.name.monkey.retromusic.extensions.materialDialog
@@ -56,8 +57,8 @@ class CreatePlaylistDialog : DialogFragment() {
                     lifecycleScope.launch(Dispatchers.IO) {
                         if (libraryViewModel.checkPlaylistExists(playlistName).isEmpty()) {
                             val playlistId: Long =
-                                libraryViewModel.createPlaylist(PlaylistEntity(playlistName))
+                                libraryViewModel.createPlaylist(PlaylistEntity(playlistName = playlistName))
-                            libraryViewModel.insertSongs(songs.map { it.toSongEntity(playlistId.toInt()) })
+                            libraryViewModel.insertSongs(songs.map { it.toSongEntity(playlistId) })
                             libraryViewModel.forceReload(Playlists)
                         } else {
                             Toast.makeText(requireContext(), "Playlist exists", Toast.LENGTH_SHORT)

app/src/main/java/code/name/monkey/retromusic/extensions/CursorExtensions.kt

@@ -0,0 +1,37 @@
+package code.name.monkey.retromusic.extensions
+
+import android.database.Cursor
+
+// exception is rethrown manually in order to have a readable stacktrace
+
+internal fun Cursor.getInt(columnName: String): Int {
+    try {
+        return this.getInt(this.getColumnIndex(columnName))
+    } catch (ex: Throwable) {
+        throw IllegalStateException("invalid column $columnName", ex)
+    }
+}
+
+internal fun Cursor.getLong(columnName: String): Long {
+    try {
+        return this.getLong(this.getColumnIndex(columnName))
+    } catch (ex: Throwable) {
+        throw IllegalStateException("invalid column $columnName", ex)
+    }
+}
+
+internal fun Cursor.getString(columnName: String): String {
+    try {
+        return this.getString(this.getColumnIndex(columnName))
+    } catch (ex: Throwable) {
+        throw IllegalStateException("invalid column $columnName", ex)
+    }
+}
+
+internal fun Cursor.getStringOrNull(columnName: String): String? {
+    try {
+        return this.getString(this.getColumnIndex(columnName))
+    } catch (ex: Throwable) {
+        throw IllegalStateException("invalid column $columnName", ex)
+    }
+}

app/src/main/java/code/name/monkey/retromusic/fragments/DetailListFragment.kt

@@ -3,8 +3,11 @@ package code.name.monkey.retromusic.fragments
 import android.os.Bundle
 import android.view.View
 import android.widget.ImageView
+import androidx.core.os.bundleOf
 import androidx.lifecycle.Observer
 import androidx.lifecycle.lifecycleScope
+import androidx.navigation.fragment.FragmentNavigatorExtras
+import androidx.navigation.fragment.findNavController
 import androidx.navigation.fragment.navArgs
 import androidx.recyclerview.widget.GridLayoutManager
 import androidx.recyclerview.widget.LinearLayoutManager
@@ -178,11 +181,21 @@ class DetailListFragment : AbsMainActivityFragment(R.layout.fragment_playlist_de
         GridLayoutManager(requireContext(), 2, GridLayoutManager.VERTICAL, false)
 
 
-    override fun onArtist(artistId: Int, imageView: ImageView) {
+    override fun onArtist(artistId: Long, imageView: ImageView) {
-
+        findNavController().navigate(
+            R.id.artistDetailsFragment,
+            bundleOf(EXTRA_ARTIST_ID to artistId),
+            null,
+            FragmentNavigatorExtras(imageView to getString(R.string.transition_artist_image))
+        )
     }
 
-    override fun onAlbumClick(albumId: Int, view: View) {
+    override fun onAlbumClick(albumId: Long, view: View) {
-
+        findNavController().navigate(
+            R.id.albumDetailsFragment,
+            bundleOf(EXTRA_ALBUM_ID to albumId),
+            null,
+            FragmentNavigatorExtras(view to getString(R.string.transition_album_art))
+        )
     }
 }

app/src/main/java/code/name/monkey/retromusic/fragments/LibraryViewModel.kt

@@ -7,6 +7,7 @@ import androidx.lifecycle.viewModelScope
 import code.name.monkey.retromusic.db.PlaylistEntity
 import code.name.monkey.retromusic.db.PlaylistWithSongs
 import code.name.monkey.retromusic.db.SongEntity
+import code.name.monkey.retromusic.db.toSongEntity
 import code.name.monkey.retromusic.fragments.ReloadType.*
 import code.name.monkey.retromusic.helper.MusicPlayerRemote
 import code.name.monkey.retromusic.interfaces.MusicServiceEventListener
@@ -75,7 +76,6 @@ class LibraryViewModel(
     }
 
     fun getHome(): LiveData<List<Home>> {
-        fetchHomeSections()
         return home
     }
 
@@ -184,7 +184,7 @@ class LibraryViewModel(
         )
     }
 
-    fun renameRoomPlaylist(playListId: Int, name: String) = viewModelScope.launch(IO) {
+    fun renameRoomPlaylist(playListId: Long, name: String) = viewModelScope.launch(IO) {
         repository.renameRoomPlaylist(playListId, name)
     }
 
@@ -200,8 +200,8 @@ class LibraryViewModel(
         repository.deleteRoomPlaylist(playlists)
     }
 
-    suspend fun albumById(id: Int) = repository.albumById(id)
+    suspend fun albumById(id: Long) = repository.albumById(id)
-    suspend fun artistById(id: Int) = repository.artistById(id)
+    suspend fun artistById(id: Long) = repository.artistById(id)
     suspend fun favoritePlaylist() = repository.favoritePlaylist()
     suspend fun isFavoriteSong(song: SongEntity) = repository.isFavoriteSong(song)
     suspend fun insertSongs(songs: List<SongEntity>) = repository.insertSongs(songs)
@@ -224,9 +224,9 @@ class LibraryViewModel(
                 }
                 repository.insertSongs(songEntities)
             } else {
-                val playListId = createPlaylist(PlaylistEntity(playlist.name))
+                val playListId = createPlaylist(PlaylistEntity(playlistName = playlist.name))
                 val songEntities = playlist.getSongs().map {
-                    it.toSongEntity(playListId.toInt())
+                    it.toSongEntity(playListId)
                 }
                 repository.insertSongs(songEntities)
             }

app/src/main/java/code/name/monkey/retromusic/fragments/albums/AlbumDetailsFragment.kt

@@ -10,6 +10,7 @@ import androidx.core.text.HtmlCompat
 import androidx.lifecycle.Observer
 import androidx.lifecycle.lifecycleScope
 import androidx.navigation.findNavController
+import androidx.navigation.fragment.FragmentNavigatorExtras
 import androidx.navigation.fragment.findNavController
 import androidx.navigation.fragment.navArgs
 import androidx.recyclerview.widget.DefaultItemAnimator
@@ -46,6 +47,8 @@ import code.name.monkey.retromusic.util.PreferenceUtil
 import code.name.monkey.retromusic.util.RetroUtil
 import code.name.monkey.retromusic.util.color.MediaNotificationProcessor
 import com.bumptech.glide.Glide
+import com.google.android.material.transition.platform.MaterialArcMotion
+import com.google.android.material.transition.platform.MaterialContainerTransform
 import kotlinx.android.synthetic.main.fragment_album_content.*
 import kotlinx.android.synthetic.main.fragment_album_details.*
 import kotlinx.coroutines.Dispatchers
@@ -70,8 +73,16 @@ class AlbumDetailsFragment : AbsMainActivityFragment(R.layout.fragment_album_det
     private val savedSortOrder: String
         get() = PreferenceUtil.albumDetailSongSortOrder
 
-    override fun onActivityCreated(savedInstanceState: Bundle?) {
+    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onActivityCreated(savedInstanceState)
+        super.onCreate(savedInstanceState)
+        sharedElementEnterTransition = MaterialContainerTransform().apply {
+            duration = 1000L
+            pathMotion = MaterialArcMotion()
+        }
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
         setHasOptionsMenu(true)
         mainActivity.hideBottomBarVisibility(false)
         mainActivity.addMusicServiceEventListener(detailsViewModel)
@@ -79,7 +90,6 @@ class AlbumDetailsFragment : AbsMainActivityFragment(R.layout.fragment_album_det
         toolbar.title = " "
         postponeEnterTransition()
         detailsViewModel.getAlbum().observe(viewLifecycleOwner, Observer {
-            println(Thread.currentThread().name)
             startPostponedEnterTransition()
             showAlbum(it)
         })
@@ -92,11 +102,11 @@ class AlbumDetailsFragment : AbsMainActivityFragment(R.layout.fragment_album_det
                     bundleOf(EXTRA_ARTIST_ID to album.artistId)
                 )
         }
-        playAction.setOnClickListener { MusicPlayerRemote.openQueue(album.songs!!, 0, true) }
+        playAction.setOnClickListener { MusicPlayerRemote.openQueue(album.songs, 0, true) }
 
         shuffleAction.setOnClickListener {
             MusicPlayerRemote.openAndShuffleQueue(
-                album.songs!!,
+                album.songs,
                 true
             )
         }
@@ -135,7 +145,7 @@ class AlbumDetailsFragment : AbsMainActivityFragment(R.layout.fragment_album_det
     }
 
     private fun showAlbum(album: Album) {
-        if (album.songs!!.isEmpty()) {
+        if (album.songs.isEmpty()) {
             return
         }
         this.album = album
@@ -255,10 +265,12 @@ class AlbumDetailsFragment : AbsMainActivityFragment(R.layout.fragment_album_det
         playAction.applyOutlineColor(color)
     }
 
-    override fun onAlbumClick(albumId: Int, view: View) {
+    override fun onAlbumClick(albumId: Long, view: View) {
         findNavController().navigate(
             R.id.albumDetailsFragment,
-            bundleOf(EXTRA_ALBUM_ID to albumId)
+            bundleOf(EXTRA_ALBUM_ID to albumId),
+            null,
+            FragmentNavigatorExtras(view to getString(R.string.transition_album_art))
         )
     }
 
@@ -350,29 +362,31 @@ class AlbumDetailsFragment : AbsMainActivityFragment(R.layout.fragment_album_det
 
     private fun setSaveSortOrder(sortOrder: String) {
         PreferenceUtil.albumDetailSongSortOrder = sortOrder
-        when (sortOrder) {
+        val songs = when (sortOrder) {
-            SortOrder.AlbumSongSortOrder.SONG_TRACK_LIST -> album.songs?.sortWith(Comparator { o1, o2 ->
+            SortOrder.AlbumSongSortOrder.SONG_TRACK_LIST -> album.songs.sortedWith { o1, o2 ->
                 o1.trackNumber.compareTo(
                     o2.trackNumber
                 )
-            })
+            }
-            SortOrder.AlbumSongSortOrder.SONG_A_Z -> album.songs?.sortWith(Comparator { o1, o2 ->
+            SortOrder.AlbumSongSortOrder.SONG_A_Z -> album.songs.sortedWith { o1, o2 ->
                 o1.title.compareTo(
                     o2.title
                 )
-            })
+            }
-            SortOrder.AlbumSongSortOrder.SONG_Z_A -> album.songs?.sortWith(Comparator { o1, o2 ->
+            SortOrder.AlbumSongSortOrder.SONG_Z_A -> album.songs.sortedWith { o1, o2 ->
                 o2.title.compareTo(
                     o1.title
                 )
-            })
+            }
-            SortOrder.AlbumSongSortOrder.SONG_DURATION -> album.songs?.sortWith(Comparator { o1, o2 ->
+            SortOrder.AlbumSongSortOrder.SONG_DURATION -> album.songs.sortedWith { o1, o2 ->
                 o1.duration.compareTo(
                     o2.duration
                 )
-            })
+            }
+            else -> throw IllegalArgumentException("invalid $sortOrder")
         }
-        album.songs?.let { simpleSongAdapter.swapDataSet(it) }
+        album = album.copy(songs = songs)
+        simpleSongAdapter.swapDataSet(album.songs)
     }
 
     companion object {

app/src/main/java/code/name/monkey/retromusic/fragments/albums/AlbumDetailsViewModel.kt

@@ -13,15 +13,14 @@ import kotlinx.coroutines.Dispatchers.IO
 
 class AlbumDetailsViewModel(
     private val repository: RealRepository,
-    private val albumId: Int
+    private val albumId: Long
 ) : ViewModel(), MusicServiceEventListener {
 
     fun getAlbum(): LiveData<Album> = liveData(IO) {
-        val album = repository.albumByIdAsync(albumId)
+        emit(repository.albumByIdAsync(albumId))
-        emit(album)
     }
 
-    fun getArtist(artistId: Int): LiveData<Artist> = liveData(IO) {
+    fun getArtist(artistId: Long): LiveData<Artist> = liveData(IO) {
         val artist = repository.artistById(artistId)
         emit(artist)
     }
@@ -32,7 +31,7 @@ class AlbumDetailsViewModel(
     }
 
     fun getMoreAlbums(artist: Artist): LiveData<List<Album>> = liveData(IO) {
-        artist.albums?.filter { item -> item.id != albumId }?.let { albums ->
+        artist.albums.filter { item -> item.id != albumId }.let { albums ->
             if (albums.isNotEmpty()) emit(albums)
         }
     }

app/src/main/java/code/name/monkey/retromusic/fragments/albums/AlbumsFragment.kt

@@ -16,11 +16,17 @@ import code.name.monkey.retromusic.helper.SortOrder
 import code.name.monkey.retromusic.helper.SortOrder.AlbumSortOrder
 import code.name.monkey.retromusic.util.PreferenceUtil
 import code.name.monkey.retromusic.util.RetroUtil
+import com.google.android.material.transition.platform.MaterialFadeThrough
 
 
 class AlbumsFragment : AbsRecyclerViewCustomGridSizeFragment<AlbumAdapter, GridLayoutManager>(),
     AlbumClickListener {
 
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enterTransition = MaterialFadeThrough()
+    }
+
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
         libraryViewModel.getAlbums().observe(viewLifecycleOwner, Observer {
@@ -43,7 +49,7 @@ class AlbumsFragment : AbsRecyclerViewCustomGridSizeFragment<AlbumAdapter, GridL
         return AlbumAdapter(
             requireActivity(),
             dataSet,
-            R.layout.item_grid,
+            itemLayoutRes(),
             null,
             this
         )
@@ -97,7 +103,7 @@ class AlbumsFragment : AbsRecyclerViewCustomGridSizeFragment<AlbumAdapter, GridL
         }
     }
 
-    override fun onAlbumClick(albumId: Int, view: View) {
+    override fun onAlbumClick(albumId: Long, view: View) {
         findActivityNavController(R.id.fragment_container).navigate(
             R.id.albumDetailsFragment,
             bundleOf(EXTRA_ALBUM_ID to albumId),
@@ -285,5 +291,5 @@ class AlbumsFragment : AbsRecyclerViewCustomGridSizeFragment<AlbumAdapter, GridL
 }
 
 interface AlbumClickListener {
-    fun onAlbumClick(albumId: Int, view: View)
+    fun onAlbumClick(albumId: Long, view: View)
 }

app/src/main/java/code/name/monkey/retromusic/fragments/artists/ArtistDetailsFragment.kt

@@ -17,7 +17,6 @@ import androidx.navigation.fragment.navArgs
 import androidx.recyclerview.widget.DefaultItemAnimator
 import androidx.recyclerview.widget.GridLayoutManager
 import androidx.recyclerview.widget.LinearLayoutManager
-import code.name.monkey.appthemehelper.ThemeStore
 import code.name.monkey.retromusic.EXTRA_ALBUM_ID
 import code.name.monkey.retromusic.R
 import code.name.monkey.retromusic.adapter.album.HorizontalAlbumAdapter
@@ -38,7 +37,6 @@ import code.name.monkey.retromusic.network.model.LastFmArtist
 import code.name.monkey.retromusic.repository.RealRepository
 import code.name.monkey.retromusic.util.CustomArtistImageUtil
 import code.name.monkey.retromusic.util.MusicUtil
-import code.name.monkey.retromusic.util.PreferenceUtil
 import code.name.monkey.retromusic.util.RetroUtil
 import com.bumptech.glide.Glide
 import kotlinx.android.synthetic.main.fragment_artist_content.*
@@ -199,14 +197,12 @@ class ArtistDetailsFragment : AbsMainActivityFragment(R.layout.fragment_artist_d
     }
 
     private fun setColors(color: Int) {
-        val finalColor = if (PreferenceUtil.isAdaptiveColor) color
+        shuffleAction.applyColor(color)
-        else ThemeStore.accentColor(requireContext())
+        playAction.applyOutlineColor(color)
-        shuffleAction.applyColor(finalColor)
-        playAction.applyOutlineColor(finalColor)
     }
 
 
-    override fun onAlbumClick(albumId: Int, view: View) {
+    override fun onAlbumClick(albumId: Long, view: View) {
         findNavController().navigate(
             R.id.albumDetailsFragment,
             bundleOf(EXTRA_ALBUM_ID to albumId),

app/src/main/java/code/name/monkey/retromusic/fragments/artists/ArtistDetailsViewModel.kt

@@ -12,7 +12,7 @@ import kotlinx.coroutines.Dispatchers.IO
 
 class ArtistDetailsViewModel(
     private val realRepository: RealRepository,
-    private val artistId: Int
+    private val artistId: Long
 ) : ViewModel(), MusicServiceEventListener {
 
     fun getArtist(): LiveData<Artist> = liveData(IO) {

app/src/main/java/code/name/monkey/retromusic/fragments/artists/ArtistsFragment.kt

@@ -15,10 +15,15 @@ import code.name.monkey.retromusic.fragments.base.AbsRecyclerViewCustomGridSizeF
 import code.name.monkey.retromusic.helper.SortOrder.ArtistSortOrder
 import code.name.monkey.retromusic.util.PreferenceUtil
 import code.name.monkey.retromusic.util.RetroUtil
+import com.google.android.material.transition.platform.MaterialFadeThrough
 
 
 class ArtistsFragment : AbsRecyclerViewCustomGridSizeFragment<ArtistAdapter, GridLayoutManager>(),
     ArtistClickListener {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enterTransition = MaterialFadeThrough()
+    }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
@@ -46,7 +51,7 @@ class ArtistsFragment : AbsRecyclerViewCustomGridSizeFragment<ArtistAdapter, Gri
         return ArtistAdapter(
             requireActivity(),
             dataSet,
-            R.layout.item_grid_circle,
+            itemLayoutRes(),
             null,
             this
         )
@@ -96,7 +101,7 @@ class ArtistsFragment : AbsRecyclerViewCustomGridSizeFragment<ArtistAdapter, Gri
         }
     }
 
-    override fun onArtist(artistId: Int, imageView: ImageView) {
+    override fun onArtist(artistId: Long, imageView: ImageView) {
         val controller = findActivityNavController(R.id.fragment_container)
         controller.navigate(R.id.artistDetailsFragment, bundleOf(EXTRA_ARTIST_ID to artistId))
     }
@@ -258,5 +263,5 @@ class ArtistsFragment : AbsRecyclerViewCustomGridSizeFragment<ArtistAdapter, Gri
 }
 
 interface ArtistClickListener {
-    fun onArtist(artistId: Int, imageView: ImageView)
+    fun onArtist(artistId: Long, imageView: ImageView)
 }

app/src/main/java/code/name/monkey/retromusic/fragments/base/AbsPlayerFragment.kt

@@ -23,6 +23,7 @@ import code.name.monkey.retromusic.activities.tageditor.AbsTagEditorActivity
 import code.name.monkey.retromusic.activities.tageditor.SongTagEditorActivity
 import code.name.monkey.retromusic.db.PlaylistEntity
 import code.name.monkey.retromusic.db.SongEntity
+import code.name.monkey.retromusic.db.toSongEntity
 import code.name.monkey.retromusic.dialogs.*
 import code.name.monkey.retromusic.extensions.hide
 import code.name.monkey.retromusic.extensions.whichFragment

app/src/main/java/code/name/monkey/retromusic/fragments/genres/GenresFragment.kt

@@ -21,8 +21,13 @@ import androidx.recyclerview.widget.LinearLayoutManager
 import code.name.monkey.retromusic.R
 import code.name.monkey.retromusic.adapter.GenreAdapter
 import code.name.monkey.retromusic.fragments.base.AbsRecyclerViewFragment
+import com.google.android.material.transition.platform.MaterialFadeThrough
 
 class GenresFragment : AbsRecyclerViewFragment<GenreAdapter, LinearLayoutManager>() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enterTransition = MaterialFadeThrough()
+    }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)

app/src/main/java/code/name/monkey/retromusic/fragments/home/HomeFragment.kt

@@ -36,6 +36,7 @@ import code.name.monkey.retromusic.glide.UserProfileGlideRequest
 import code.name.monkey.retromusic.util.NavigationUtil
 import code.name.monkey.retromusic.util.PreferenceUtil
 import com.bumptech.glide.Glide
+import com.google.android.material.transition.platform.MaterialFadeThrough
 import kotlinx.android.synthetic.main.abs_playlists.*
 import kotlinx.android.synthetic.main.fragment_banner_home.*
 import kotlinx.android.synthetic.main.home_content.*
@@ -43,6 +44,10 @@ import org.koin.androidx.viewmodel.ext.android.sharedViewModel
 
 class HomeFragment :
     AbsMainActivityFragment(if (PreferenceUtil.isHomeBanner) R.layout.fragment_banner_home else R.layout.fragment_home) {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enterTransition = MaterialFadeThrough()
+    }
 
     private val libraryViewModel: LibraryViewModel by sharedViewModel()
 

app/src/main/java/code/name/monkey/retromusic/fragments/player/gradient/GradientPlayerFragment.kt

@@ -14,12 +14,16 @@ import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.widget.Toolbar
 import androidx.constraintlayout.widget.ConstraintLayout
 import androidx.core.view.ViewCompat
+import androidx.lifecycle.lifecycleScope
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import code.name.monkey.appthemehelper.util.ColorUtil
 import code.name.monkey.retromusic.R
 import code.name.monkey.retromusic.RetroBottomSheetBehavior
 import code.name.monkey.retromusic.adapter.song.PlayingQueueAdapter
+import code.name.monkey.retromusic.db.PlaylistEntity
+import code.name.monkey.retromusic.db.SongEntity
+import code.name.monkey.retromusic.db.toSongEntity
 import code.name.monkey.retromusic.extensions.hide
 import code.name.monkey.retromusic.extensions.ripAlpha
 import code.name.monkey.retromusic.extensions.show
@@ -36,7 +40,7 @@ import code.name.monkey.retromusic.util.MusicUtil
 import code.name.monkey.retromusic.util.PreferenceUtil
 import code.name.monkey.retromusic.util.ViewUtil
 import code.name.monkey.retromusic.util.color.MediaNotificationProcessor
-import com.google.android.material.bottomsheet.BottomSheetBehavior
+import com.google.android.material.bottomsheet.BottomSheetBehavior.*
 import com.h6ah4i.android.widget.advrecyclerview.animator.DraggableItemAnimator
 import com.h6ah4i.android.widget.advrecyclerview.draggable.RecyclerViewDragDropManager
 import com.h6ah4i.android.widget.advrecyclerview.swipeable.RecyclerViewSwipeManager
@@ -45,6 +49,9 @@ import com.h6ah4i.android.widget.advrecyclerview.utils.WrapperAdapterUtils
 import kotlinx.android.synthetic.main.fragment_gradient_controls.*
 import kotlinx.android.synthetic.main.fragment_gradient_player.*
 import kotlinx.android.synthetic.main.status_bar.*
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 
 class GradientPlayerFragment : AbsPlayerFragment(R.layout.fragment_gradient_player),
     MusicProgressViewUpdateHelper.Callback,
@@ -61,7 +68,7 @@ class GradientPlayerFragment : AbsPlayerFragment(R.layout.fragment_gradient_play
     private var playingQueueAdapter: PlayingQueueAdapter? = null
     private lateinit var linearLayoutManager: LinearLayoutManager
 
-    private val bottomSheetCallbackList = object : BottomSheetBehavior.BottomSheetCallback() {
+    private val bottomSheetCallbackList = object : BottomSheetCallback() {
         override fun onSlide(bottomSheet: View, slideOffset: Float) {
             mainActivity.getBottomSheetBehavior().setAllowDragging(false)
             playerQueueSheet.setPadding(
@@ -74,11 +81,11 @@ class GradientPlayerFragment : AbsPlayerFragment(R.layout.fragment_gradient_play
 
         override fun onStateChanged(bottomSheet: View, newState: Int) {
             when (newState) {
-                BottomSheetBehavior.STATE_EXPANDED,
+                STATE_EXPANDED,
-                BottomSheetBehavior.STATE_DRAGGING -> {
+                STATE_DRAGGING -> {
                     mainActivity.getBottomSheetBehavior().setAllowDragging(false)
                 }
-                BottomSheetBehavior.STATE_COLLAPSED -> {
+                STATE_COLLAPSED -> {
                     resetToCurrentPosition()
                     mainActivity.getBottomSheetBehavior().setAllowDragging(true)
                 }
@@ -167,9 +174,9 @@ class GradientPlayerFragment : AbsPlayerFragment(R.layout.fragment_gradient_play
 
     override fun onBackPressed(): Boolean {
         var wasExpanded = false
-        if (getQueuePanel().state == BottomSheetBehavior.STATE_EXPANDED) {
+        if (getQueuePanel().state == STATE_EXPANDED) {
-            wasExpanded = getQueuePanel().state == BottomSheetBehavior.STATE_EXPANDED
+            wasExpanded = getQueuePanel().state == STATE_EXPANDED
-            getQueuePanel().state = BottomSheetBehavior.STATE_COLLAPSED
+            getQueuePanel().state = STATE_COLLAPSED
             return wasExpanded
         }
         return wasExpanded
@@ -216,7 +223,7 @@ class GradientPlayerFragment : AbsPlayerFragment(R.layout.fragment_gradient_play
     override fun toggleFavorite(song: Song) {
         super.toggleFavorite(song)
         if (song.id == MusicPlayerRemote.currentSong.id) {
-            updateIsFavorite()
+            updateIsFavoriteIcon()
         }
     }
 
@@ -224,6 +231,23 @@ class GradientPlayerFragment : AbsPlayerFragment(R.layout.fragment_gradient_play
         toggleFavorite(MusicPlayerRemote.currentSong)
     }
 
+    private fun updateIsFavoriteIcon() {
+        lifecycleScope.launch(Dispatchers.IO) {
+            val playlist: PlaylistEntity? = libraryViewModel.favoritePlaylist()
+            if (playlist != null) {
+                val song: SongEntity =
+                    MusicPlayerRemote.currentSong.toSongEntity(playlist.playListId)
+                val isFavorite: Boolean = libraryViewModel.isFavoriteSong(song).isNotEmpty()
+                withContext(Dispatchers.Main) {
+                    val icon =
+                        if (isFavorite) R.drawable.ic_favorite
+                        else R.drawable.ic_favorite_border
+                    songFavourite.setImageResource(icon)
+                }
+            }
+        }
+    }
+
     private fun hideVolumeIfAvailable() {
         if (PreferenceUtil.isVolumeVisibilityMode) {
             childFragmentManager.beginTransaction()
@@ -241,6 +265,7 @@ class GradientPlayerFragment : AbsPlayerFragment(R.layout.fragment_gradient_play
         updatePlayPauseDrawableState()
         updatePlayPauseDrawableState()
         updateQueue()
+        updateIsFavoriteIcon()
     }
 
     override fun onPlayStateChanged() {
@@ -259,6 +284,7 @@ class GradientPlayerFragment : AbsPlayerFragment(R.layout.fragment_gradient_play
         super.onPlayingMetaChanged()
         updateSong()
         updateQueuePosition()
+        updateIsFavoriteIcon()
     }
 
     override fun onQueueChanged() {
@@ -359,13 +385,10 @@ class GradientPlayerFragment : AbsPlayerFragment(R.layout.fragment_gradient_play
     private fun updateLabel() {
         (MusicPlayerRemote.playingQueue.size - 1).apply {
             if (this == (MusicPlayerRemote.position)) {
-                nextSong.hide()
+                nextSong.text = "Last song"
             } else {
                 val title = MusicPlayerRemote.playingQueue[MusicPlayerRemote.position + 1].title
-                nextSong.apply {
+                nextSong.text = title
-                    text = title
-                    show()
-                }
             }
         }
     }
@@ -460,12 +483,10 @@ class GradientPlayerFragment : AbsPlayerFragment(R.layout.fragment_gradient_play
 
     override fun onUpdateProgressViews(progress: Int, total: Int) {
         progressSlider.max = total
-
         val animator = ObjectAnimator.ofInt(progressSlider, "progress", progress)
         animator.duration = AbsPlayerControlsFragment.SLIDER_ANIMATION_TIME
         animator.interpolator = LinearInterpolator()
         animator.start()
-
         songTotalTime.text = MusicUtil.getReadableDurationString(total.toLong())
         songCurrentProgress.text = MusicUtil.getReadableDurationString(progress.toLong())
     }

app/src/main/java/code/name/monkey/retromusic/fragments/playlists/ImportPlaylistFragment.kt

@@ -1,72 +0,0 @@
-package code.name.monkey.retromusic.fragments.playlists
-
-import android.os.Bundle
-import android.view.Menu
-import android.view.MenuInflater
-import android.view.View
-import android.widget.Toast
-import androidx.lifecycle.Observer
-import androidx.lifecycle.lifecycleScope
-import androidx.recyclerview.widget.LinearLayoutManager
-import code.name.monkey.retromusic.R
-import code.name.monkey.retromusic.adapter.playlist.LegacyPlaylistAdapter
-import code.name.monkey.retromusic.db.PlaylistEntity
-import code.name.monkey.retromusic.fragments.ReloadType.Playlists
-import code.name.monkey.retromusic.fragments.base.AbsRecyclerViewFragment
-import code.name.monkey.retromusic.model.Playlist
-import kotlinx.coroutines.Dispatchers.IO
-import kotlinx.coroutines.launch
-
-class ImportPlaylistFragment :
-    AbsRecyclerViewFragment<LegacyPlaylistAdapter, LinearLayoutManager>(),
-    LegacyPlaylistAdapter.PlaylistClickListener {
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        super.onViewCreated(view, savedInstanceState)
-        libraryViewModel.getLegacyPlaylist().observe(viewLifecycleOwner, Observer {
-            if (it.isNotEmpty())
-                adapter?.swapData(it)
-            else
-                adapter?.swapData(listOf())
-        })
-    }
-
-    override fun createLayoutManager(): LinearLayoutManager {
-        return LinearLayoutManager(requireContext())
-    }
-
-    override fun createAdapter(): LegacyPlaylistAdapter {
-        return LegacyPlaylistAdapter(
-            requireActivity(),
-            ArrayList(),
-            R.layout.item_list_no_image,
-            this
-        )
-    }
-
-    override fun onPlaylistClick(playlist: Playlist) {
-        Toast.makeText(requireContext(), "Importing ${playlist.name}", Toast.LENGTH_LONG).show()
-        lifecycleScope.launch(IO) {
-            if (playlist.name.isNotEmpty()) {
-                if (libraryViewModel.checkPlaylistExists(playlist.name).isEmpty()) {
-                    val playlistId: Long =
-                        libraryViewModel.createPlaylist(PlaylistEntity(playlist.name))
-                    libraryViewModel.insertSongs(playlist.getSongs().map {
-                        it.toSongEntity(playlistId.toInt())
-                    })
-                    libraryViewModel.forceReload(Playlists)
-                } else {
-                    Toast.makeText(requireContext(), "Playlist exists", Toast.LENGTH_SHORT)
-                        .show()
-                }
-            }
-        }
-    }
-
-    override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
-        menu.removeItem(R.id.action_grid_size)
-        menu.removeItem(R.id.action_layout_type)
-        menu.removeItem(R.id.action_sort_order)
-        super.onCreateOptionsMenu(menu, inflater)
-    }
-}

app/src/main/java/code/name/monkey/retromusic/fragments/playlists/PlaylistsFragment.kt

@@ -11,9 +11,14 @@ import code.name.monkey.appthemehelper.util.ToolbarContentTintHelper
 import code.name.monkey.retromusic.R
 import code.name.monkey.retromusic.adapter.playlist.PlaylistAdapter
 import code.name.monkey.retromusic.fragments.base.AbsRecyclerViewFragment
+import com.google.android.material.transition.platform.MaterialFadeThrough
 import kotlinx.android.synthetic.main.fragment_library.*
 
 class PlaylistsFragment : AbsRecyclerViewFragment<PlaylistAdapter, LinearLayoutManager>() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enterTransition = MaterialFadeThrough()
+    }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)

app/src/main/java/code/name/monkey/retromusic/fragments/search/SearchViewModel.kt

@@ -15,6 +15,6 @@ class SearchViewModel(private val realRepository: RealRepository) : ViewModel()
 
     fun search(query: String?) = viewModelScope.launch(IO) {
         val result = realRepository.search(query)
-        results.value = result
+        results.postValue(result)
     }
 }

app/src/main/java/code/name/monkey/retromusic/fragments/songs/SongsFragment.kt

@@ -12,10 +12,14 @@ import code.name.monkey.retromusic.fragments.base.AbsRecyclerViewCustomGridSizeF
 import code.name.monkey.retromusic.helper.SortOrder.SongSortOrder
 import code.name.monkey.retromusic.util.PreferenceUtil
 import code.name.monkey.retromusic.util.RetroUtil
+import com.google.android.material.transition.platform.MaterialFadeThrough
 
 
 class SongsFragment : AbsRecyclerViewCustomGridSizeFragment<SongAdapter, GridLayoutManager>() {
-
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enterTransition = MaterialFadeThrough()
+    }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)

app/src/main/java/code/name/monkey/retromusic/model/AbsCustomPlaylist.kt

@@ -7,8 +7,8 @@ import org.koin.core.KoinComponent
 import org.koin.core.inject
 
 abstract class AbsCustomPlaylist(
-    id: Int = -1,
+    id: Long,
-    name: String = ""
+    name: String
 ) : Playlist(id, name), KoinComponent {
 
     abstract fun songs(): List<Song>

app/src/main/java/code/name/monkey/retromusic/model/Album.kt

@@ -14,19 +14,15 @@
 
 package code.name.monkey.retromusic.model
 
-import java.util.*
+data class Album(
-
+    val id: Long,
-class Album {
+    val songs: List<Song>
-
+) {
-    val songs: ArrayList<Song>?
-
-    val id: Int
-        get() = safeGetFirstSong().albumId
 
     val title: String?
         get() = safeGetFirstSong().albumName
 
-    val artistId: Int
+    val artistId: Long
         get() = safeGetFirstSong().artistId
 
     val artistName: String?
@@ -39,20 +35,17 @@ class Album {
         get() = safeGetFirstSong().dateModified
 
     val songCount: Int
-        get() = songs!!.size
+        get() = songs.size
 
     val albumArtist: String?
         get() = safeGetFirstSong().albumArtist
 
-    constructor(songs: ArrayList<Song>) {
-        this.songs = songs
-    }
-
-    constructor() {
-        this.songs = ArrayList()
-    }
-
     fun safeGetFirstSong(): Song {
-        return if (songs!!.isEmpty()) Song.emptySong else songs[0]
+        return songs.firstOrNull() ?: Song.emptySong
     }
+
+    companion object {
+        val empty = Album(-1, emptyList())
+    }
+
 }

app/src/main/java/code/name/monkey/retromusic/model/Artist.kt

@@ -15,17 +15,20 @@
 package code.name.monkey.retromusic.model
 
 import code.name.monkey.retromusic.util.MusicUtil
+import code.name.monkey.retromusic.util.PreferenceUtil
 import java.util.*
 
-class Artist {
+data class Artist(
-    val albums: ArrayList<Album>?
+    val id: Long,
-
+    val albums: List<Album>
-    val id: Int
+) {
-        get() = safeGetFirstAlbum().artistId
 
     val name: String
         get() {
             val name = safeGetFirstAlbum().safeGetFirstSong().albumArtist
+            if (PreferenceUtil.albumArtistsOnly && MusicUtil.isVariousArtists(name)) {
+                return VARIOUS_ARTISTS_DISPLAY_NAME
+            }
             return if (MusicUtil.isArtistNameUnknown(name)) {
                 UNKNOWN_ARTIST_DISPLAY_NAME
             } else safeGetFirstAlbum().safeGetFirstSong().artistName
@@ -34,37 +37,27 @@ class Artist {
     val songCount: Int
         get() {
             var songCount = 0
-            for (album in albums!!) {
+            for (album in albums) {
                 songCount += album.songCount
             }
             return songCount
         }
 
     val albumCount: Int
-        get() = albums!!.size
+        get() = albums.size
 
-    val songs: ArrayList<Song>
+    val songs: List<Song>
-        get() {
+        get() = albums.flatMap { it.songs }
-            val songs = ArrayList<Song>()
-            for (album in albums!!) {
-                songs.addAll(album.songs!!)
-            }
-            return songs
-        }
-
-    constructor(albums: ArrayList<Album>) {
-        this.albums = albums
-    }
-
-    constructor() {
-        this.albums = ArrayList()
-    }
 
     fun safeGetFirstAlbum(): Album {
-        return if (albums!!.isEmpty()) Album() else albums[0]
+        return albums.firstOrNull() ?: Album.empty
     }
 
     companion object {
         const val UNKNOWN_ARTIST_DISPLAY_NAME = "Unknown Artist"
+        const val VARIOUS_ARTISTS_DISPLAY_NAME = "Various Artists"
+        const val VARIOUS_ARTISTS_ID : Long = -2
+        val empty = Artist(-1, emptyList())
+
     }
 }

app/src/main/java/code/name/monkey/retromusic/model/CategoryInfo.java

@@ -1,82 +0,0 @@
-/*
- * Copyright (c) 2019 Hemanth Savarala.
- *
- * Licensed under the GNU General Public License v3
- *
- * This is free software: you can redistribute it and/or modify it under
- * the terms of the GNU General Public License as published by
- *  the Free Software Foundation either version 3 of the License, or (at your option) any later version.
- *
- * This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
- * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- * See the GNU General Public License for more details.
- */
-
-package code.name.monkey.retromusic.model;
-
-import android.os.Parcel;
-import android.os.Parcelable;
-
-import androidx.annotation.DrawableRes;
-import androidx.annotation.StringRes;
-
-import code.name.monkey.retromusic.R;
-
-
-public class CategoryInfo implements Parcelable {
-
-    public static final Creator<CategoryInfo> CREATOR = new Creator<CategoryInfo>() {
-        public CategoryInfo createFromParcel(Parcel source) {
-            return new CategoryInfo(source);
-        }
-
-        public CategoryInfo[] newArray(int size) {
-            return new CategoryInfo[size];
-        }
-    };
-    public Category category;
-    public boolean visible;
-
-    public CategoryInfo(Category category, boolean visible) {
-        this.category = category;
-        this.visible = visible;
-    }
-
-
-    private CategoryInfo(Parcel source) {
-        category = (Category) source.readSerializable();
-        visible = source.readInt() == 1;
-    }
-
-    @Override
-    public int describeContents() {
-        return 0;
-    }
-
-    public void writeToParcel(Parcel dest, int flags) {
-        dest.writeSerializable(category);
-        dest.writeInt(visible ? 1 : 0);
-    }
-
-    public enum Category {
-        Home(R.id.action_home, R.string.for_you, R.drawable.ic_face),
-        Songs(R.id.action_song, R.string.songs, R.drawable.ic_audiotrack),
-        Albums(R.id.action_album, R.string.albums, R.drawable.ic_album),
-        Artists(R.id.action_artist, R.string.artists, R.drawable.ic_artist),
-        Playlists(R.id.action_playlist, R.string.playlists, (R.drawable.ic_queue_music)),
-        Genres(R.id.action_genre, R.string.genres, R.drawable.ic_guitar),
-        Folder(R.id.action_folder, R.string.folders, R.drawable.ic_folder);
-
-        public final int icon;
-
-        public final int id;
-
-        public final int stringRes;
-
-        Category(int id, @StringRes int stringRes, @DrawableRes int icon) {
-            this.stringRes = stringRes;
-            this.id = id;
-            this.icon = icon;
-        }
-    }
-}

app/src/main/java/code/name/monkey/retromusic/model/CategoryInfo.kt

@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2019 Hemanth Savarala.
+ *
+ * Licensed under the GNU General Public License v3
+ *
+ * This is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by
+ *  the Free Software Foundation either version 3 of the License, or (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ */
+package code.name.monkey.retromusic.model
+
+import android.os.Parcelable
+import androidx.annotation.DrawableRes
+import androidx.annotation.StringRes
+import code.name.monkey.retromusic.R
+import kotlinx.android.parcel.Parcelize
+
+@Parcelize
+data class CategoryInfo(
+    val category: Category,
+    @get:JvmName("isVisible")
+    var visible: Boolean
+) : Parcelable {
+
+    enum class Category(
+        val id: Int,
+        @StringRes val stringRes: Int,
+        @DrawableRes val icon: Int
+    ) {
+        Home(R.id.action_home, R.string.for_you, R.drawable.ic_face),
+        Songs(R.id.action_song, R.string.songs, R.drawable.ic_audiotrack),
+        Albums(R.id.action_album, R.string.albums, R.drawable.ic_album),
+        Artists(R.id.action_artist, R.string.artists, R.drawable.ic_artist),
+        Playlists(R.id.action_playlist, R.string.playlists, R.drawable.ic_queue_music),
+        Genres(R.id.action_genre, R.string.genres, R.drawable.ic_guitar),
+        Folder(R.id.action_folder, R.string.folders, R.drawable.ic_folder);
+    }
+
+}

app/src/main/java/code/name/monkey/retromusic/model/Contributor.kt

@@ -16,8 +16,10 @@ package code.name.monkey.retromusic.model
 
 import com.google.gson.annotations.SerializedName
 
-class Contributor(
+data class Contributor(
     val name: String,
     val summary: String,
-    val link: String, @SerializedName("profile_image") val profileImage: String
+    val link: String,
+    @SerializedName("profile_image")
+    val profileImage: String
 )

app/src/main/java/code/name/monkey/retromusic/model/Genre.kt

@@ -18,4 +18,8 @@ import android.os.Parcelable
 import kotlinx.android.parcel.Parcelize
 
 @Parcelize
-data class Genre(val id: Int = -1, val name: String, val songCount: Int) : Parcelable
+data class Genre(
+    val id: Long,
+    val name: String,
+    val songCount: Int
+) : Parcelable

app/src/main/java/code/name/monkey/retromusic/model/Home.kt

@@ -17,7 +17,7 @@ package code.name.monkey.retromusic.model
 import androidx.annotation.StringRes
 import code.name.monkey.retromusic.HomeSection
 
-class Home(
+data class Home(
     val arrayList: List<Any>,
     @HomeSection
     val homeSection: Int,

app/src/main/java/code/name/monkey/retromusic/model/Playlist.kt

@@ -10,10 +10,14 @@ import org.koin.core.get
 
 @Parcelize
 open class Playlist(
-    val id: Int = -1,
+    val id: Long,
-    val name: String = ""
+    val name: String
 ) : Parcelable, KoinComponent {
 
+    companion object {
+        val empty = Playlist(-1, "")
+    }
+
     // this default implementation covers static playlists
     fun getSongs(): List<Song> {
         return RealPlaylistRepository(get()).playlistSongs(id)
@@ -27,4 +31,24 @@ open class Playlist(
             ""
         )
     }
+
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+
+        other as Playlist
+
+        if (id != other.id) return false
+        if (name != other.name) return false
+
+        return true
+    }
+
+    override fun hashCode(): Int {
+        var result = id.hashCode()
+        result = 31 * result + name.hashCode()
+        return result
+    }
+
+
 }

app/src/main/java/code/name/monkey/retromusic/model/PlaylistSong.java

@@ -1,58 +0,0 @@
-/*
- * Copyright (c) 2019 Hemanth Savarala.
- *
- * Licensed under the GNU General Public License v3
- *
- * This is free software: you can redistribute it and/or modify it under
- * the terms of the GNU General Public License as published by
- *  the Free Software Foundation either version 3 of the License, or (at your option) any later version.
- *
- * This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
- * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- * See the GNU General Public License for more details.
- */
-
-package code.name.monkey.retromusic.model;
-
-import org.jetbrains.annotations.NotNull;
-
-import kotlinx.android.parcel.Parcelize;
-
-/**
- * Created by hemanths on 3/4/19
- */
-@Parcelize
-public class PlaylistSong extends Song {
-
-    final int idInPlayList;
-
-    final int playlistId;
-
-    public PlaylistSong(int id,
-                        @NotNull String title,
-                        int trackNumber,
-                        int year,
-                        long duration,
-                        @NotNull String data,
-                        long dateModified,
-                        int albumId,
-                        @NotNull String albumName,
-                        int artistId,
-                        @NotNull String artistName,
-                        int playlistId,
-                        int idInPlayList,
-                        @NotNull String composer,
-                        String albumArtist) {
-        super(id, title, trackNumber, year, duration, data, dateModified, albumId, albumName, artistId, artistName, composer, albumArtist);
-        this.playlistId = playlistId;
-        this.idInPlayList = idInPlayList;
-    }
-
-    public int getIdInPlayList() {
-        return idInPlayList;
-    }
-
-    public int getPlaylistId() {
-        return playlistId;
-    }
-}

app/src/main/java/code/name/monkey/retromusic/model/PlaylistSong.kt

@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2019 Hemanth Savarala.
+ *
+ * Licensed under the GNU General Public License v3
+ *
+ * This is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by
+ *  the Free Software Foundation either version 3 of the License, or (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ */
+package code.name.monkey.retromusic.model
+
+import kotlinx.android.parcel.Parcelize
+
+/**
+ * Created by hemanths on 3/4/19
+ */
+@Parcelize
+class PlaylistSong(
+    override val id: Long,
+    override val title: String,
+    override val trackNumber: Int,
+    override val year: Int,
+    override val duration: Long,
+    override val data: String,
+    override val dateModified: Long,
+    override val albumId: Long,
+    override val albumName: String,
+    override val artistId: Long,
+    override val artistName: String,
+    val playlistId: Long,
+    val idInPlayList: Long,
+    override val composer: String,
+    override val albumArtist: String?
+) : Song(
+    id = id,
+    title = title,
+    trackNumber = trackNumber,
+    year = year,
+    duration = duration,
+    data = data,
+    dateModified = dateModified,
+    albumId = albumId,
+    albumName = albumName,
+    artistId = artistId,
+    artistName = artistName,
+    composer = composer,
+    albumArtist = albumArtist
+) {
+
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+        if (!super.equals(other)) return false
+
+        other as PlaylistSong
+
+        if (id != other.id) return false
+        if (title != other.title) return false
+        if (trackNumber != other.trackNumber) return false
+        if (year != other.year) return false
+        if (duration != other.duration) return false
+        if (data != other.data) return false
+        if (dateModified != other.dateModified) return false
+        if (albumId != other.albumId) return false
+        if (albumName != other.albumName) return false
+        if (artistId != other.artistId) return false
+        if (artistName != other.artistName) return false
+        if (playlistId != other.playlistId) return false
+        if (idInPlayList != other.idInPlayList) return false
+        if (composer != other.composer) return false
+        if (albumArtist != other.albumArtist) return false
+
+        return true
+    }
+
+    override fun hashCode(): Int {
+        var result = super.hashCode()
+        result = 31 * result + id.hashCode()
+        result = 31 * result + title.hashCode()
+        result = 31 * result + trackNumber
+        result = 31 * result + year
+        result = 31 * result + duration.hashCode()
+        result = 31 * result + data.hashCode()
+        result = 31 * result + dateModified.hashCode()
+        result = 31 * result + albumId.hashCode()
+        result = 31 * result + albumName.hashCode()
+        result = 31 * result + artistId.hashCode()
+        result = 31 * result + artistName.hashCode()
+        result = 31 * result + playlistId.hashCode()
+        result = 31 * result + idInPlayList.hashCode()
+        result = 31 * result + composer.hashCode()
+        result = 31 * result + (albumArtist?.hashCode() ?: 0)
+        return result
+    }
+}

app/src/main/java/code/name/monkey/retromusic/model/Song.kt

@@ -18,58 +18,64 @@ import code.name.monkey.retromusic.db.HistoryEntity
 import code.name.monkey.retromusic.db.SongEntity
 import kotlinx.android.parcel.Parcelize
 
+// update equals and hashcode if fields changes
 @Parcelize
 open class Song(
-    val id: Int,
+    open val id: Long,
-    val title: String,
+    open val title: String,
-    val trackNumber: Int,
+    open val trackNumber: Int,
-    val year: Int,
+    open val year: Int,
-    val duration: Long,
+    open val duration: Long,
-    val data: String,
+    open val data: String,
-    val dateModified: Long,
+    open val dateModified: Long,
-    val albumId: Int,
+    open val albumId: Long,
-    val albumName: String,
+    open val albumName: String,
-    val artistId: Int,
+    open val artistId: Long,
-    val artistName: String,
+    open val artistName: String,
-    val composer: String?,
+    open val composer: String?,
-    val albumArtist: String?
+    open val albumArtist: String?
 ) : Parcelable {
-    fun toHistoryEntity(timePlayed: Long): HistoryEntity {
+
-        return HistoryEntity(
+
-            id,
+    // need to override manually because is open and cannot be a data class
-            title,
+    override fun equals(other: Any?): Boolean {
-            trackNumber,
+        if (this === other) return true
-            year,
+        if (javaClass != other?.javaClass) return false
-            duration,
+
-            data,
+        other as Song
-            dateModified,
+
-            albumId,
+        if (id != other.id) return false
-            albumName,
+        if (title != other.title) return false
-            artistId,
+        if (trackNumber != other.trackNumber) return false
-            artistName,
+        if (year != other.year) return false
-            composer,
+        if (duration != other.duration) return false
-            albumArtist,
+        if (data != other.data) return false
-            timePlayed
+        if (dateModified != other.dateModified) return false
-        )
+        if (albumId != other.albumId) return false
+        if (albumName != other.albumName) return false
+        if (artistId != other.artistId) return false
+        if (artistName != other.artistName) return false
+        if (composer != other.composer) return false
+        if (albumArtist != other.albumArtist) return false
+
+        return true
     }
 
-    fun toSongEntity(playListId: Int): SongEntity {
+    override fun hashCode(): Int {
-        return SongEntity(
+        var result = id.hashCode()
-            playListId,
+        result = 31 * result + title.hashCode()
-            id,
+        result = 31 * result + trackNumber
-            title,
+        result = 31 * result + year
-            trackNumber,
+        result = 31 * result + duration.hashCode()
-            year,
+        result = 31 * result + data.hashCode()
-            duration,
+        result = 31 * result + dateModified.hashCode()
-            data,
+        result = 31 * result + albumId.hashCode()
-            dateModified,
+        result = 31 * result + albumName.hashCode()
-            albumId,
+        result = 31 * result + artistId.hashCode()
-            albumName,
+        result = 31 * result + artistName.hashCode()
-            artistId,
+        result = 31 * result + (composer?.hashCode() ?: 0)
-            artistName,
+        result = 31 * result + (albumArtist?.hashCode() ?: 0)
-            composer,
+        return result
-            albumArtist
-        )
     }
 
 
@@ -77,19 +83,19 @@ open class Song(
 
         @JvmStatic
         val emptySong = Song(
-            -1,
+            id = -1,
-            "",
+            title = "",
-            -1,
+            trackNumber = -1,
-            -1,
+            year = -1,
-            -1,
+            duration = -1,
-            "",
+            data = "",
-            -1,
+            dateModified = -1,
-            -1,
+            albumId = -1,
-            "",
+            albumName = "",
-            -1,
+            artistId = -1,
-            "",
+            artistName = "",
-            "",
+            composer = "",
-            ""
+            albumArtist = ""
         )
     }
 }

app/src/main/java/code/name/monkey/retromusic/model/smartplaylist/AbsSmartPlaylist.kt

@@ -5,6 +5,9 @@ import code.name.monkey.retromusic.R
 import code.name.monkey.retromusic.model.AbsCustomPlaylist
 
 abstract class AbsSmartPlaylist(
-    name: String = "",
+    name: String,
     @DrawableRes val iconRes: Int = R.drawable.ic_queue_music
-) : AbsCustomPlaylist(-Math.abs(31 * name.hashCode() + iconRes * name.hashCode() * 31 * 31), name)
+) : AbsCustomPlaylist(
+    id = PlaylistIdGenerator(name, iconRes),
+    name = name
+)

app/src/main/java/code/name/monkey/retromusic/model/smartplaylist/HistoryPlaylist.kt

@@ -7,12 +7,11 @@ import kotlinx.android.parcel.Parcelize
 import org.koin.core.KoinComponent
 
 @Parcelize
-class HistoryPlaylist :
+class HistoryPlaylist : AbsSmartPlaylist(
-    AbsSmartPlaylist(
+    name = App.getContext().getString(R.string.history),
-        App.getContext().getString(R.string.history),
+    iconRes = R.drawable.ic_history
-        R.drawable.ic_history
+), KoinComponent {
-    ),
+
-    KoinComponent {
     override fun songs(): List<Song> {
         return topPlayedRepository.recentlyPlayedTracks()
     }

app/src/main/java/code/name/monkey/retromusic/model/smartplaylist/LastAddedPlaylist.kt

@@ -6,8 +6,10 @@ import code.name.monkey.retromusic.model.Song
 import kotlinx.android.parcel.Parcelize
 
 @Parcelize
-class LastAddedPlaylist :
+class LastAddedPlaylist : AbsSmartPlaylist(
-    AbsSmartPlaylist(App.getContext().getString(R.string.last_added), R.drawable.ic_library_add) {
+    name = App.getContext().getString(R.string.last_added),
+    iconRes = R.drawable.ic_library_add
+) {
     override fun songs(): List<Song> {
         return lastAddedRepository.recentSongs()
     }

app/src/main/java/code/name/monkey/retromusic/model/smartplaylist/NotPlayedPlaylist.kt

@@ -7,8 +7,8 @@ import kotlinx.android.parcel.Parcelize
 
 @Parcelize
 class NotPlayedPlaylist : AbsSmartPlaylist(
-    App.getContext().getString(R.string.not_recently_played),
+    name = App.getContext().getString(R.string.not_recently_played),
-    R.drawable.ic_watch_later
+    iconRes = R.drawable.ic_watch_later
 ) {
     override fun songs(): List<Song> {
         return topPlayedRepository.notRecentlyPlayedTracks()

app/src/main/java/code/name/monkey/retromusic/model/smartplaylist/PlaylistIdGenerator.kt

@@ -0,0 +1,12 @@
+package code.name.monkey.retromusic.model.smartplaylist
+
+import androidx.annotation.DrawableRes
+import kotlin.math.abs
+
+object PlaylistIdGenerator {
+
+    operator fun invoke(name: String, @DrawableRes iconRes: Int): Long {
+        return -abs(31L * name.hashCode() + iconRes * name.hashCode() * 31L * 31L)
+    }
+
+}

app/src/main/java/code/name/monkey/retromusic/model/smartplaylist/ShuffleAllPlaylist.kt

@@ -7,8 +7,8 @@ import kotlinx.android.parcel.Parcelize
 
 @Parcelize
 class ShuffleAllPlaylist : AbsSmartPlaylist(
-    App.getContext().getString(R.string.action_shuffle_all),
+    name = App.getContext().getString(R.string.action_shuffle_all),
-    R.drawable.ic_shuffle
+    iconRes = R.drawable.ic_shuffle
 ) {
     override fun songs(): List<Song> {
         return songRepository.songs()

app/src/main/java/code/name/monkey/retromusic/model/smartplaylist/TopTracksPlaylist.kt

@@ -7,8 +7,8 @@ import kotlinx.android.parcel.Parcelize
 
 @Parcelize
 class TopTracksPlaylist : AbsSmartPlaylist(
-    App.getContext().getString(R.string.my_top_tracks),
+    name = App.getContext().getString(R.string.my_top_tracks),
-    R.drawable.ic_trending_up
+    iconRes = R.drawable.ic_trending_up
 ) {
     override fun songs(): List<Song> {
         return topPlayedRepository.topTracks()

app/src/main/java/code/name/monkey/retromusic/repository/AlbumRepository.kt

@@ -31,7 +31,7 @@ interface AlbumRepository {
 
     fun albums(query: String): List<Album>
 
-    fun album(albumId: Int): Album
+    fun album(albumId: Long): Album
 }
 
 class RealAlbumRepository(private val songRepository: RealSongRepository) :
@@ -59,70 +59,42 @@ class RealAlbumRepository(private val songRepository: RealSongRepository) :
         return splitIntoAlbums(songs)
     }
 
-    override fun album(albumId: Int): Album {
+    override fun album(albumId: Long): Album {
         val cursor = songRepository.makeSongCursor(
             AudioColumns.ALBUM_ID + "=?",
             arrayOf(albumId.toString()),
             getSongLoaderSortOrder()
         )
         val songs = songRepository.songs(cursor)
-        val album = Album(ArrayList(songs))
+        val album = Album(albumId, songs)
         sortAlbumSongs(album)
         return album
     }
 
     fun splitIntoAlbums(
-        songs: List<Song>?
+        songs: List<Song>
     ): List<Album> {
-        val albums = ArrayList<Album>()
+        return songs.groupBy { it.albumId }
-        if (songs != null) {
+            .map { sortAlbumSongs(Album(it.key, it.value)) }
-            for (song in songs) {
-                getOrCreateAlbum(albums, song.albumId).songs?.add(song)
-            }
-        }
-        for (album in albums) {
-            sortAlbumSongs(album)
-        }
-        return albums
     }
 
-    private fun getOrCreateAlbum(
+    private fun sortAlbumSongs(album: Album): Album {
-        albums: ArrayList<Album>,
+        val songs = when (PreferenceUtil.albumDetailSongSortOrder) {
-        albumId: Int
+            SortOrder.AlbumSongSortOrder.SONG_TRACK_LIST -> album.songs.sortedWith { o1, o2 ->
-    ): Album {
+                o1.trackNumber.compareTo(o2.trackNumber)
-        for (album in albums) {
-            if (album.songs!!.isNotEmpty() && album.songs[0].albumId == albumId) {
-                return album
             }
+            SortOrder.AlbumSongSortOrder.SONG_A_Z -> album.songs.sortedWith { o1, o2 ->
+                o1.title.compareTo(o2.title)
+            }
+            SortOrder.AlbumSongSortOrder.SONG_Z_A -> album.songs.sortedWith { o1, o2 ->
+                o2.title.compareTo(o1.title)
+            }
+            SortOrder.AlbumSongSortOrder.SONG_DURATION -> album.songs.sortedWith { o1, o2 ->
+                o1.duration.compareTo(o2.duration)
+            }
+            else -> throw IllegalArgumentException("invalid ${PreferenceUtil.albumDetailSongSortOrder}")
         }
-        val album = Album()
+        return album.copy(songs = songs)
-        albums.add(album)
-        return album
-    }
-
-    private fun sortAlbumSongs(album: Album) {
-        when (PreferenceUtil.albumDetailSongSortOrder) {
-            SortOrder.AlbumSongSortOrder.SONG_TRACK_LIST -> album.songs?.sortWith(Comparator { o1, o2 ->
-                o1.trackNumber.compareTo(
-                    o2.trackNumber
-                )
-            })
-            SortOrder.AlbumSongSortOrder.SONG_A_Z -> album.songs?.sortWith(Comparator { o1, o2 ->
-                o1.title.compareTo(
-                    o2.title
-                )
-            })
-            SortOrder.AlbumSongSortOrder.SONG_Z_A -> album.songs?.sortWith(Comparator { o1, o2 ->
-                o2.title.compareTo(
-                    o1.title
-                )
-            })
-            SortOrder.AlbumSongSortOrder.SONG_DURATION -> album.songs?.sortWith(Comparator { o1, o2 ->
-                o1.duration.compareTo(
-                    o2.duration
-                )
-            })
-        }
     }
 
     private fun getSongLoaderSortOrder(): String {

app/src/main/java/code/name/monkey/retromusic/repository/ArtistRepository.kt

@@ -26,7 +26,7 @@ interface ArtistRepository {
 
     fun artists(query: String): List<Artist>
 
-    fun artist(artistId: Int): Artist
+    fun artist(artistId: Long): Artist
 }
 
 class RealArtistRepository(
@@ -39,7 +39,29 @@ class RealArtistRepository(
                 PreferenceUtil.artistAlbumSortOrder + ", " +
                 PreferenceUtil.artistSongSortOrder
     }
+    override fun artist(artistId: Long): Artist {
+        if (artistId == Artist.VARIOUS_ARTISTS_ID) {
+            // Get Various Artists
+            val songs = songRepository.songs(
+                songRepository.makeSongCursor(
+                    null,
+                    null,
+                    getSongLoaderSortOrder()
+                )
+            )
+            val albums = albumRepository.splitIntoAlbums(songs).filter { it.albumArtist == Artist.VARIOUS_ARTISTS_DISPLAY_NAME }
+            return Artist(Artist.VARIOUS_ARTISTS_ID, albums)
+        }
 
+        val songs = songRepository.songs(
+            songRepository.makeSongCursor(
+                AudioColumns.ARTIST_ID + "=?",
+                arrayOf(artistId.toString()),
+                getSongLoaderSortOrder()
+            )
+        )
+        return Artist(artistId, albumRepository.splitIntoAlbums(songs))
+    }
     override fun artists(): List<Artist> {
         val songs = songRepository.songs(
             songRepository.makeSongCursor(
@@ -50,17 +72,6 @@ class RealArtistRepository(
         return splitIntoArtists(albumRepository.splitIntoAlbums(songs))
     }
 
-    override fun artists(query: String): List<Artist> {
-        val songs = songRepository.songs(
-            songRepository.makeSongCursor(
-                AudioColumns.ARTIST + " LIKE ?",
-                arrayOf("%$query%"),
-                getSongLoaderSortOrder()
-            )
-        )
-        return splitIntoArtists(albumRepository.splitIntoAlbums(songs))
-    }
-
     override fun albumArtists(): List<Artist> {
         val songs = songRepository.songs(
             songRepository.makeSongCursor(
@@ -70,54 +81,41 @@ class RealArtistRepository(
             )
         )
 
-        val sortString = if (PreferenceUtil.artistSortOrder.contains("DESC")) String.CASE_INSENSITIVE_ORDER.reversed() else String.CASE_INSENSITIVE_ORDER
+        return splitIntoAlbumArtists(albumRepository.splitIntoAlbums(songs))
-
-        return splitIntoAlbumArtists(albumRepository.splitIntoAlbums(songs)).sortedWith(compareBy(sortString) { it.name })
     }
 
-    private fun splitIntoAlbumArtists(albums: List<Album>): List<Artist> {
+    override fun artists(query: String): List<Artist> {
-        // First group the songs in albums by filtering each artist name
-        val amap = hashMapOf<String, Artist>()
-        albums.forEach {
-            val key = it.albumArtist
-            if (key != null) {
-                val artist: Artist = if (amap[key] != null) amap[key]!! else Artist()
-                artist.albums?.add(it)
-                amap[key] = artist
-            }
-        }
-        return ArrayList(amap.values)
-    }
-
-    override fun artist(artistId: Int): Artist {
         val songs = songRepository.songs(
             songRepository.makeSongCursor(
-                AudioColumns.ARTIST_ID + "=?",
+                AudioColumns.ARTIST + " LIKE ?",
-                arrayOf(artistId.toString()),
+                arrayOf("%$query%"),
                 getSongLoaderSortOrder()
             )
         )
-        return Artist(ArrayList(albumRepository.splitIntoAlbums(songs)))
+        return splitIntoArtists(albumRepository.splitIntoAlbums(songs))
     }
 
-    fun splitIntoArtists(albums: List<Album>?): List<Artist> {
+
-        val artists = mutableListOf<Artist>()
+    private fun splitIntoAlbumArtists(albums: List<Album>): List<Artist> {
-        if (albums != null) {
+        return albums.groupBy { it.albumArtist }
-            for (album in albums) {
+            .map {
-                getOrCreateArtist(artists, album.artistId).albums!!.add(album)
+                val currentAlbums = it.value
+                if (currentAlbums.isNotEmpty()) {
+                    if (currentAlbums[0].albumArtist == Artist.VARIOUS_ARTISTS_DISPLAY_NAME) {
+                        Artist(Artist.VARIOUS_ARTISTS_ID, currentAlbums)
+                    } else {
+                        Artist(currentAlbums[0].artistId, currentAlbums)
+                    }
+                } else {
+                    Artist.empty
+                }
             }
-        }
-        return artists
     }
 
-    private fun getOrCreateArtist(artists: MutableList<Artist>, artistId: Int): Artist {
+
-        for (artist in artists) {
+
-            if (artist.albums!!.isNotEmpty() && artist.albums[0].songs!!.isNotEmpty() && artist.albums[0].songs!![0].artistId == artistId) {
+    fun splitIntoArtists(albums: List<Album>): List<Artist> {
-                return artist
+        return albums.groupBy { it.artistId }
-            }
+            .map { Artist(it.key, it.value) }
-        }
-        val album = Artist()
-        artists.add(album)
-        return album
     }
-}
+}

app/src/main/java/code/name/monkey/retromusic/repository/GenreRepository.kt

@@ -22,6 +22,8 @@ import android.provider.MediaStore
 import android.provider.MediaStore.Audio.Genres
 import code.name.monkey.retromusic.Constants.IS_MUSIC
 import code.name.monkey.retromusic.Constants.baseProjection
+import code.name.monkey.retromusic.extensions.getLong
+import code.name.monkey.retromusic.extensions.getString
 import code.name.monkey.retromusic.model.Genre
 import code.name.monkey.retromusic.model.Song
 import code.name.monkey.retromusic.util.PreferenceUtil
@@ -29,7 +31,7 @@ import code.name.monkey.retromusic.util.PreferenceUtil
 interface GenreRepository {
     fun genres(): List<Genre>
 
-    fun songs(genreId: Int): List<Song>
+    fun songs(genreId: Long): List<Song>
 }
 
 class RealGenreRepository(
@@ -41,25 +43,25 @@ class RealGenreRepository(
         return getGenresFromCursor(makeGenreCursor())
     }
 
-    override fun songs(genreId: Int): List<Song> {
+    override fun songs(genreId: Long): List<Song> {
         // The genres table only stores songs that have a genre specified,
         // so we need to get songs without a genre a different way.
-        return if (genreId == -1) {
+        return if (genreId == -1L) {
             getSongsWithNoGenre()
         } else songRepository.songs(makeGenreSongCursor(genreId))
     }
 
     private fun getGenreFromCursor(cursor: Cursor): Genre {
-        val id = cursor.getInt(0)
+        val id = cursor.getLong(Genres._ID)
-        val name = cursor.getString(1)
+        val name = cursor.getString(Genres.NAME)
         val songCount = songs(id).size
         return Genre(id, name, songCount)
 
     }
 
     private fun getGenreFromCursorWithOutSongs(cursor: Cursor): Genre {
-        val id = cursor.getInt(0)
+        val id = cursor.getLong(Genres._ID)
-        val name = cursor.getString(1)
+        val name = cursor.getString(Genres.NAME)
         return Genre(id, name, -1)
     }
 
@@ -91,9 +93,9 @@ class RealGenreRepository(
         )
     }
 
-    private fun makeGenreSongCursor(genreId: Int): Cursor? {
+    private fun makeGenreSongCursor(genreId: Long): Cursor? {
         return contentResolver.query(
-            Genres.Members.getContentUri("external", genreId.toLong()),
+            Genres.Members.getContentUri("external", genreId),
             baseProjection,
             IS_MUSIC,
             null,

app/src/main/java/code/name/monkey/retromusic/repository/PlaylistRepository.kt

@@ -18,8 +18,14 @@ import android.content.ContentResolver
 import android.database.Cursor
 import android.provider.BaseColumns
 import android.provider.MediaStore
+import android.provider.MediaStore.Audio.AudioColumns
+import android.provider.MediaStore.Audio.Playlists.*
 import android.provider.MediaStore.Audio.PlaylistsColumns
 import code.name.monkey.retromusic.Constants
+import code.name.monkey.retromusic.extensions.getInt
+import code.name.monkey.retromusic.extensions.getLong
+import code.name.monkey.retromusic.extensions.getString
+import code.name.monkey.retromusic.extensions.getStringOrNull
 import code.name.monkey.retromusic.model.Playlist
 import code.name.monkey.retromusic.model.PlaylistSong
 import code.name.monkey.retromusic.model.Song
@@ -40,11 +46,11 @@ interface PlaylistRepository {
 
     fun favoritePlaylist(playlistName: String): List<Playlist>
 
-    fun deletePlaylist(playlistId: Int)
+    fun deletePlaylist(playlistId: Long)
 
-    fun playlist(playlistId: Int): Playlist
+    fun playlist(playlistId: Long): Playlist
 
-    fun playlistSongs(playlistId: Int): List<Song>
+    fun playlistSongs(playlistId: Long): List<Song>
 }
 
 class RealPlaylistRepository(
@@ -52,19 +58,20 @@ class RealPlaylistRepository(
 ) : PlaylistRepository {
 
     override fun playlist(cursor: Cursor?): Playlist {
-        var playlist = Playlist()
+        return cursor.use {
-        if (cursor != null && cursor.moveToFirst()) {
+            if (cursor?.moveToFirst() == true) {
-            playlist = getPlaylistFromCursorImpl(cursor)
+                getPlaylistFromCursorImpl(cursor)
+            } else {
+                Playlist.empty
+            }
         }
-        cursor?.close()
-        return playlist
     }
 
     override fun playlist(playlistName: String): Playlist {
         return playlist(makePlaylistCursor(PlaylistsColumns.NAME + "=?", arrayOf(playlistName)))
     }
 
-    override fun playlist(playlistId: Int): Playlist {
+    override fun playlist(playlistId: Long): Playlist {
         return playlist(
             makePlaylistCursor(
                 BaseColumns._ID + "=?",
@@ -101,8 +108,8 @@ class RealPlaylistRepository(
         )
     }
 
-    override fun deletePlaylist(playlistId: Int) {
+    override fun deletePlaylist(playlistId: Long) {
-        val localUri = MediaStore.Audio.Playlists.EXTERNAL_CONTENT_URI
+        val localUri = EXTERNAL_CONTENT_URI
         val localStringBuilder = StringBuilder()
         localStringBuilder.append("_id IN (")
         localStringBuilder.append(playlistId)
@@ -113,12 +120,12 @@ class RealPlaylistRepository(
     private fun getPlaylistFromCursorImpl(
         cursor: Cursor
     ): Playlist {
-        val id = cursor.getInt(0)
+        val id = cursor.getLong(MediaStore.MediaColumns._ID)
-        val name = cursor.getString(1)
+        val name = cursor.getString(NAME)
         return Playlist(id, name)
     }
 
-    override fun playlistSongs(playlistId: Int): List<Song> {
+    override fun playlistSongs(playlistId: Long): List<Song> {
         val songs = arrayListOf<Song>()
         val cursor = makePlaylistSongCursor(playlistId)
 
@@ -131,21 +138,21 @@ class RealPlaylistRepository(
         return songs
     }
 
-    private fun getPlaylistSongFromCursorImpl(cursor: Cursor, playlistId: Int): PlaylistSong {
+    private fun getPlaylistSongFromCursorImpl(cursor: Cursor, playlistId: Long): PlaylistSong {
-        val id = cursor.getInt(0)
+        val id = cursor.getLong(Members.AUDIO_ID)
-        val title = cursor.getString(1)
+        val title = cursor.getString(AudioColumns.TITLE)
-        val trackNumber = cursor.getInt(2)
+        val trackNumber = cursor.getInt(AudioColumns.TRACK)
-        val year = cursor.getInt(3)
+        val year = cursor.getInt(AudioColumns.YEAR)
-        val duration = cursor.getLong(4)
+        val duration = cursor.getLong(AudioColumns.DURATION)
-        val data = cursor.getString(5)
+        val data = cursor.getString(AudioColumns.DATA)
-        val dateModified = cursor.getLong(6)
+        val dateModified = cursor.getLong(AudioColumns.DATE_MODIFIED)
-        val albumId = cursor.getInt(7)
+        val albumId = cursor.getLong(AudioColumns.ALBUM_ID)
-        val albumName = cursor.getString(8)
+        val albumName = cursor.getString(AudioColumns.ALBUM)
-        val artistId = cursor.getInt(9)
+        val artistId = cursor.getLong(AudioColumns.ARTIST_ID)
-        val artistName = cursor.getString(10)
+        val artistName = cursor.getString(AudioColumns.ARTIST)
-        val idInPlaylist = cursor.getInt(11)
+        val idInPlaylist = cursor.getLong(Members._ID)
-        val composer = cursor.getString(12)
+        val composer = cursor.getStringOrNull(AudioColumns.COMPOSER)
-        val albumArtist = cursor.getString(13)
+        val albumArtist = cursor.getStringOrNull("album_artist")
         return PlaylistSong(
             id,
             title,
@@ -160,7 +167,7 @@ class RealPlaylistRepository(
             artistName,
             playlistId,
             idInPlaylist,
-            composer,
+            composer ?: "",
             albumArtist
         )
     }
@@ -170,37 +177,37 @@ class RealPlaylistRepository(
         values: Array<String>?
     ): Cursor? {
         return contentResolver.query(
-            MediaStore.Audio.Playlists.EXTERNAL_CONTENT_URI,
+            EXTERNAL_CONTENT_URI,
             arrayOf(
                 BaseColumns._ID, /* 0 */
                 PlaylistsColumns.NAME /* 1 */
             ),
             selection,
             values,
-            MediaStore.Audio.Playlists.DEFAULT_SORT_ORDER
+            DEFAULT_SORT_ORDER
         )
     }
 
 
-    private fun makePlaylistSongCursor(playlistId: Int): Cursor? {
+    private fun makePlaylistSongCursor(playlistId: Long): Cursor? {
         return contentResolver.query(
-            MediaStore.Audio.Playlists.Members.getContentUri("external", playlistId.toLong()),
+            Members.getContentUri("external", playlistId),
             arrayOf(
-                MediaStore.Audio.Playlists.Members.AUDIO_ID, // 0
+                Members.AUDIO_ID, // 0
-                MediaStore.Audio.AudioColumns.TITLE, // 1
+                AudioColumns.TITLE, // 1
-                MediaStore.Audio.AudioColumns.TRACK, // 2
+                AudioColumns.TRACK, // 2
-                MediaStore.Audio.AudioColumns.YEAR, // 3
+                AudioColumns.YEAR, // 3
-                MediaStore.Audio.AudioColumns.DURATION, // 4
+                AudioColumns.DURATION, // 4
-                MediaStore.Audio.AudioColumns.DATA, // 5
+                AudioColumns.DATA, // 5
-                MediaStore.Audio.AudioColumns.DATE_MODIFIED, // 6
+                AudioColumns.DATE_MODIFIED, // 6
-                MediaStore.Audio.AudioColumns.ALBUM_ID, // 7
+                AudioColumns.ALBUM_ID, // 7
-                MediaStore.Audio.AudioColumns.ALBUM, // 8
+                AudioColumns.ALBUM, // 8
-                MediaStore.Audio.AudioColumns.ARTIST_ID, // 9
+                AudioColumns.ARTIST_ID, // 9
-                MediaStore.Audio.AudioColumns.ARTIST, // 10
+                AudioColumns.ARTIST, // 10
-                MediaStore.Audio.Playlists.Members._ID,//11
+                Members._ID,//11
-                MediaStore.Audio.AudioColumns.COMPOSER,//12
+                AudioColumns.COMPOSER,//12
                 "album_artist"//13
-            ), Constants.IS_MUSIC, null, MediaStore.Audio.Playlists.Members.DEFAULT_SORT_ORDER
+            ), Constants.IS_MUSIC, null, Members.DEFAULT_SORT_ORDER
         )
     }
 }

app/src/main/java/code/name/monkey/retromusic/repository/PlaylistSongsLoader.kt

@@ -18,7 +18,12 @@ import android.content.Context
 import android.database.Cursor
 import android.provider.MediaStore
 import android.provider.MediaStore.Audio.AudioColumns
+import android.provider.MediaStore.Audio.Playlists.*
 import code.name.monkey.retromusic.Constants.IS_MUSIC
+import code.name.monkey.retromusic.extensions.getInt
+import code.name.monkey.retromusic.extensions.getLong
+import code.name.monkey.retromusic.extensions.getString
+import code.name.monkey.retromusic.extensions.getStringOrNull
 import code.name.monkey.retromusic.model.AbsCustomPlaylist
 import code.name.monkey.retromusic.model.Playlist
 import code.name.monkey.retromusic.model.PlaylistSong
@@ -42,7 +47,7 @@ object PlaylistSongsLoader {
     }
 
     @JvmStatic
-    fun getPlaylistSongList(context: Context, playlistId: Int): List<Song> {
+    fun getPlaylistSongList(context: Context, playlistId: Long): List<Song> {
         val songs = mutableListOf<Song>()
         val cursor =
             makePlaylistSongCursor(
@@ -64,21 +69,22 @@ object PlaylistSongsLoader {
         return songs
     }
 
-    private fun getPlaylistSongFromCursorImpl(cursor: Cursor, playlistId: Int): PlaylistSong {
+    // TODO duplicated in [PlaylistRepository.kt]
-        val id = cursor.getInt(0)
+    private fun getPlaylistSongFromCursorImpl(cursor: Cursor, playlistId: Long): PlaylistSong {
-        val title = cursor.getString(1)
+        val id = cursor.getLong(Members.AUDIO_ID)
-        val trackNumber = cursor.getInt(2)
+        val title = cursor.getString(AudioColumns.TITLE)
-        val year = cursor.getInt(3)
+        val trackNumber = cursor.getInt(AudioColumns.TRACK)
-        val duration = cursor.getLong(4)
+        val year = cursor.getInt(AudioColumns.YEAR)
-        val data = cursor.getString(5)
+        val duration = cursor.getLong(AudioColumns.DURATION)
-        val dateModified = cursor.getLong(6)
+        val data = cursor.getString(AudioColumns.DATA)
-        val albumId = cursor.getInt(7)
+        val dateModified = cursor.getLong(AudioColumns.DATE_MODIFIED)
-        val albumName = cursor.getString(8)
+        val albumId = cursor.getLong(AudioColumns.ALBUM_ID)
-        val artistId = cursor.getInt(9)
+        val albumName = cursor.getString(AudioColumns.ALBUM)
-        val artistName = cursor.getString(10)
+        val artistId = cursor.getLong(AudioColumns.ARTIST_ID)
-        val idInPlaylist = cursor.getInt(11)
+        val artistName = cursor.getString(AudioColumns.ARTIST)
-        val composer = cursor.getString(12)
+        val idInPlaylist = cursor.getLong(Members._ID)
-        val albumArtist = cursor.getString(13)
+        val composer = cursor.getString(AudioColumns.COMPOSER)
+        val albumArtist = cursor.getStringOrNull("album_artist")
         return PlaylistSong(
             id,
             title,
@@ -98,12 +104,12 @@ object PlaylistSongsLoader {
         )
     }
 
-    private fun makePlaylistSongCursor(context: Context, playlistId: Int): Cursor? {
+    private fun makePlaylistSongCursor(context: Context, playlistId: Long): Cursor? {
         try {
             return context.contentResolver.query(
-                MediaStore.Audio.Playlists.Members.getContentUri("external", playlistId.toLong()),
+                Members.getContentUri("external", playlistId),
                 arrayOf(
-                    MediaStore.Audio.Playlists.Members.AUDIO_ID, // 0
+                    Members.AUDIO_ID, // 0
                     AudioColumns.TITLE, // 1
                     AudioColumns.TRACK, // 2
                     AudioColumns.YEAR, // 3
@@ -114,10 +120,10 @@ object PlaylistSongsLoader {
                     AudioColumns.ALBUM, // 8
                     AudioColumns.ARTIST_ID, // 9
                     AudioColumns.ARTIST, // 10
-                    MediaStore.Audio.Playlists.Members._ID,//11
+                    Members._ID,//11
                     AudioColumns.COMPOSER,//12
                     "album_artist"//13
-                ), IS_MUSIC, null, MediaStore.Audio.Playlists.Members.DEFAULT_SORT_ORDER
+                ), IS_MUSIC, null, Members.DEFAULT_SORT_ORDER
             )
         } catch (e: SecurityException) {
             return null

app/src/main/java/code/name/monkey/retromusic/repository/Repository.kt

@@ -41,10 +41,10 @@ interface Repository {
     fun historySong(): List<HistoryEntity>
     fun favorites(): LiveData<List<SongEntity>>
     fun observableHistorySongs(): LiveData<List<HistoryEntity>>
-    fun albumById(albumId: Int): Album
+    fun albumById(albumId: Long): Album
     fun playlistSongs(playlistEntity: PlaylistEntity): LiveData<List<SongEntity>>
     suspend fun fetchAlbums(): List<Album>
-    suspend fun albumByIdAsync(albumId: Int): Album
+    suspend fun albumByIdAsync(albumId: Long): Album
     suspend fun allSongs(): List<Song>
     suspend fun fetchArtists(): List<Artist>
     suspend fun albumArtists(): List<Artist>
@@ -52,10 +52,10 @@ interface Repository {
     suspend fun fetchGenres(): List<Genre>
     suspend fun search(query: String?): MutableList<Any>
     suspend fun getPlaylistSongs(playlist: Playlist): List<Song>
-    suspend fun getGenre(genreId: Int): List<Song>
+    suspend fun getGenre(genreId: Long): List<Song>
     suspend fun artistInfo(name: String, lang: String?, cache: String?): Result<LastFmArtist>
     suspend fun albumInfo(artist: String, album: String): Result<LastFmAlbum>
-    suspend fun artistById(artistId: Int): Artist
+    suspend fun artistById(artistId: Long): Artist
     suspend fun recentArtists(): List<Artist>
     suspend fun topArtists(): List<Artist>
     suspend fun topAlbums(): List<Album>
@@ -70,7 +70,7 @@ interface Repository {
     suspend fun playlists(): Home
     suspend fun homeSections(): List<Home>
     suspend fun homeSectionsFlow(): Flow<Result<List<Home>>>
-    suspend fun playlist(playlistId: Int): Playlist
+    suspend fun playlist(playlistId: Long): Playlist
     suspend fun fetchPlaylistWithSongs(): List<PlaylistWithSongs>
     suspend fun playlistSongs(playlistWithSongs: PlaylistWithSongs): List<Song>
     suspend fun insertSongs(songs: List<SongEntity>)
@@ -78,7 +78,7 @@ interface Repository {
     suspend fun createPlaylist(playlistEntity: PlaylistEntity): Long
     suspend fun fetchPlaylists(): List<PlaylistEntity>
     suspend fun deleteRoomPlaylist(playlists: List<PlaylistEntity>)
-    suspend fun renameRoomPlaylist(playlistId: Int, name: String)
+    suspend fun renameRoomPlaylist(playlistId: Long, name: String)
     suspend fun deleteSongsInPlaylist(songs: List<SongEntity>)
     suspend fun removeSongFromPlaylist(songEntity: SongEntity)
     suspend fun deletePlaylistSongs(playlists: List<PlaylistEntity>)
@@ -93,7 +93,7 @@ interface Repository {
     suspend fun insertSongInPlayCount(playCountEntity: PlayCountEntity)
     suspend fun updateSongInPlayCount(playCountEntity: PlayCountEntity)
     suspend fun deleteSongInPlayCount(playCountEntity: PlayCountEntity)
-    suspend fun checkSongExistInPlayCount(songId: Int): List<PlayCountEntity>
+    suspend fun checkSongExistInPlayCount(songId: Long): List<PlayCountEntity>
     suspend fun playCountSongs(): List<PlayCountEntity>
     suspend fun blackListPaths(): List<BlackListStoreEntity>
     suspend fun lyrics(artist: String, title: String): Result<String>
@@ -126,15 +126,15 @@ class RealRepository(
 
     override suspend fun fetchAlbums(): List<Album> = albumRepository.albums()
 
-    override suspend fun albumByIdAsync(albumId: Int): Album = albumRepository.album(albumId)
+    override suspend fun albumByIdAsync(albumId: Long): Album = albumRepository.album(albumId)
 
-    override fun albumById(albumId: Int): Album = albumRepository.album(albumId)
+    override fun albumById(albumId: Long): Album = albumRepository.album(albumId)
 
     override suspend fun fetchArtists(): List<Artist> = artistRepository.artists()
 
     override suspend fun albumArtists(): List<Artist> = artistRepository.albumArtists()
 
-    override suspend fun artistById(artistId: Int): Artist = artistRepository.artist(artistId)
+    override suspend fun artistById(artistId: Long): Artist = artistRepository.artist(artistId)
 
     override suspend fun recentArtists(): List<Artist> = lastAddedRepository.recentArtists()
 
@@ -160,7 +160,7 @@ class RealRepository(
             PlaylistSongsLoader.getPlaylistSongList(context, playlist.id)
         }
 
-    override suspend fun getGenre(genreId: Int): List<Song> = genreRepository.songs(genreId)
+    override suspend fun getGenre(genreId: Long): List<Song> = genreRepository.songs(genreId)
 
     override suspend fun artistInfo(
         name: String,
@@ -235,7 +235,7 @@ class RealRepository(
     }
 
 
-    override suspend fun playlist(playlistId: Int) =
+    override suspend fun playlist(playlistId: Long) =
         playlistRepository.playlist(playlistId)
 
     override suspend fun fetchPlaylistWithSongs(): List<PlaylistWithSongs> =
@@ -263,7 +263,7 @@ class RealRepository(
     override suspend fun deleteRoomPlaylist(playlists: List<PlaylistEntity>) =
         roomRepository.deletePlaylistEntities(playlists)
 
-    override suspend fun renameRoomPlaylist(playlistId: Int, name: String) =
+    override suspend fun renameRoomPlaylist(playlistId: Long, name: String) =
         roomRepository.renamePlaylistEntity(playlistId, name)
 
     override suspend fun deleteSongsInPlaylist(songs: List<SongEntity>) =
@@ -306,7 +306,7 @@ class RealRepository(
     override suspend fun deleteSongInPlayCount(playCountEntity: PlayCountEntity) =
         roomRepository.deleteSongInPlayCount(playCountEntity)
 
-    override suspend fun checkSongExistInPlayCount(songId: Int): List<PlayCountEntity> =
+    override suspend fun checkSongExistInPlayCount(songId: Long): List<PlayCountEntity> =
         roomRepository.checkSongExistInPlayCount(songId)
 
     override suspend fun playCountSongs(): List<PlayCountEntity> =

app/src/main/java/code/name/monkey/retromusic/repository/RoomRepository.kt

@@ -18,7 +18,7 @@ interface RoomRepository {
     suspend fun playlistWithSongs(): List<PlaylistWithSongs>
     suspend fun insertSongs(songs: List<SongEntity>)
     suspend fun deletePlaylistEntities(playlistEntities: List<PlaylistEntity>)
-    suspend fun renamePlaylistEntity(playlistId: Int, name: String)
+    suspend fun renamePlaylistEntity(playlistId: Long, name: String)
     suspend fun deleteSongsInPlaylist(songs: List<SongEntity>)
     suspend fun deletePlaylistSongs(playlists: List<PlaylistEntity>)
     suspend fun favoritePlaylist(favorite: String): PlaylistEntity
@@ -31,7 +31,7 @@ interface RoomRepository {
     suspend fun insertSongInPlayCount(playCountEntity: PlayCountEntity)
     suspend fun updateSongInPlayCount(playCountEntity: PlayCountEntity)
     suspend fun deleteSongInPlayCount(playCountEntity: PlayCountEntity)
-    suspend fun checkSongExistInPlayCount(songId: Int): List<PlayCountEntity>
+    suspend fun checkSongExistInPlayCount(songId: Long): List<PlayCountEntity>
     suspend fun playCountSongs(): List<PlayCountEntity>
     suspend fun insertBlacklistPath(blackListStoreEntities: List<BlackListStoreEntity>)
     suspend fun deleteBlacklistPath(blackListStoreEntity: BlackListStoreEntity)
@@ -70,13 +70,13 @@ class RealRoomRepository(
     }
 
 
-    override   fun getSongs(playlistEntity: PlaylistEntity): LiveData<List<SongEntity>> =
+    override fun getSongs(playlistEntity: PlaylistEntity): LiveData<List<SongEntity>> =
         playlistDao.songsFromPlaylist(playlistEntity.playListId)
 
     override suspend fun deletePlaylistEntities(playlistEntities: List<PlaylistEntity>) =
         playlistDao.deletePlaylists(playlistEntities)
 
-    override suspend fun renamePlaylistEntity(playlistId: Int, name: String) =
+    override suspend fun renamePlaylistEntity(playlistId: Long, name: String) =
         playlistDao.renamePlaylist(playlistId, name)
 
     override suspend fun deleteSongsInPlaylist(songs: List<SongEntity>) {
@@ -95,7 +95,7 @@ class RealRoomRepository(
         return if (playlist != null) {
             playlist
         } else {
-            createPlaylist(PlaylistEntity(favorite))
+            createPlaylist(PlaylistEntity(playlistName = favorite))
             playlistDao.isPlaylistExists(favorite).first()
         }
     }
@@ -143,7 +143,7 @@ class RealRoomRepository(
     override suspend fun deleteSongInPlayCount(playCountEntity: PlayCountEntity) =
         playCountDao.deleteSongInPlayCount(playCountEntity)
 
-    override suspend fun checkSongExistInPlayCount(songId: Int): List<PlayCountEntity> =
+    override suspend fun checkSongExistInPlayCount(songId: Long): List<PlayCountEntity> =
         playCountDao.checkSongExistInPlayCount(songId)
 
     override suspend fun playCountSongs(): List<PlayCountEntity> =

app/src/main/java/code/name/monkey/retromusic/repository/SongRepository.kt

@@ -18,8 +18,13 @@ import android.content.Context
 import android.database.Cursor
 import android.provider.MediaStore
 import android.provider.MediaStore.Audio.AudioColumns
+import android.provider.MediaStore.Audio.Media
 import code.name.monkey.retromusic.Constants.IS_MUSIC
 import code.name.monkey.retromusic.Constants.baseProjection
+import code.name.monkey.retromusic.extensions.getInt
+import code.name.monkey.retromusic.extensions.getLong
+import code.name.monkey.retromusic.extensions.getString
+import code.name.monkey.retromusic.extensions.getStringOrNull
 import code.name.monkey.retromusic.model.Song
 import code.name.monkey.retromusic.providers.BlacklistStore
 import code.name.monkey.retromusic.util.PreferenceUtil
@@ -40,7 +45,7 @@ interface SongRepository {
 
     fun song(cursor: Cursor?): Song
 
-    fun song(songId: Int): Song
+    fun song(songId: Long): Song
 }
 
 class RealSongRepository(private val context: Context) : SongRepository {
@@ -74,14 +79,14 @@ class RealSongRepository(private val context: Context) : SongRepository {
         return songs(makeSongCursor(AudioColumns.TITLE + " LIKE ?", arrayOf("%$query%")))
     }
 
-    override fun song(songId: Int): Song {
+    override fun song(songId: Long): Song {
         return song(makeSongCursor(AudioColumns._ID + "=?", arrayOf(songId.toString())))
     }
 
     override fun songsByFilePath(filePath: String): List<Song> {
         return songs(
             makeSongCursor(
-                MediaStore.Audio.AudioColumns.DATA + "=?",
+                AudioColumns.DATA + "=?",
                 arrayOf(filePath)
             )
         )
@@ -90,19 +95,19 @@ class RealSongRepository(private val context: Context) : SongRepository {
     private fun getSongFromCursorImpl(
         cursor: Cursor
     ): Song {
-        val id = cursor.getInt(0)
+        val id = cursor.getLong(AudioColumns._ID)
-        val title = cursor.getString(1)
+        val title = cursor.getString(AudioColumns.TITLE)
-        val trackNumber = cursor.getInt(2)
+        val trackNumber = cursor.getInt(AudioColumns.TRACK)
-        val year = cursor.getInt(3)
+        val year = cursor.getInt(AudioColumns.YEAR)
-        val duration = cursor.getLong(4)
+        val duration = cursor.getLong(AudioColumns.DURATION)
-        val data = cursor.getString(5)
+        val data = cursor.getString(AudioColumns.DATA)
-        val dateModified = cursor.getLong(6)
+        val dateModified = cursor.getLong(AudioColumns.DATE_MODIFIED)
-        val albumId = cursor.getInt(7)
+        val albumId = cursor.getLong(AudioColumns.ALBUM_ID)
-        val albumName = cursor.getString(8)
+        val albumName = cursor.getStringOrNull(AudioColumns.ALBUM)
-        val artistId = cursor.getInt(9)
+        val artistId = cursor.getLong(AudioColumns.ARTIST_ID)
-        val artistName = cursor.getString(10)
+        val artistName = cursor.getStringOrNull(AudioColumns.ARTIST)
-        val composer = cursor.getString(11)
+        val composer = cursor.getStringOrNull(AudioColumns.COMPOSER)
-        val albumArtist = cursor.getString(12)
+        val albumArtist = cursor.getStringOrNull("album_artist")
         return Song(
             id,
             title,
@@ -142,18 +147,15 @@ class RealSongRepository(private val context: Context) : SongRepository {
             selectionValuesFinal = addBlacklistSelectionValues(selectionValuesFinal, paths)
         }
         selectionFinal =
-            selectionFinal + " AND " + MediaStore.Audio.Media.DURATION + ">= " + (PreferenceUtil.filterLength * 1000)
+            selectionFinal + " AND " + Media.DURATION + ">= " + (PreferenceUtil.filterLength * 1000)
-        try {
+
-            return context.contentResolver.query(
+        return context.contentResolver.query(
-                MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,
+            Media.getContentUri(MediaStore.VOLUME_EXTERNAL_PRIMARY),
-                baseProjection,
+            baseProjection,
-                selectionFinal,
+            selectionFinal,
-                selectionValuesFinal,
+            selectionValuesFinal,
-                sortOrder
+            sortOrder
-            )
+        )
-        } catch (e: SecurityException) {
-            return null
-        }
     }
 
     private fun generateBlacklistSelection(

app/src/main/java/code/name/monkey/retromusic/service/MediaSessionCallback.kt

@@ -90,7 +90,7 @@ class MediaSessionCallback(
         }
     }
 
-    private fun checkAndStartPlaying(songs: ArrayList<Song>, itemId: Int) {
+    private fun checkAndStartPlaying(songs: ArrayList<Song>, itemId: Long) {
         var songIndex = MusicUtil.indexOfSongInList(songs, itemId)
         if (songIndex == -1) {
             songIndex = 0

app/src/main/java/code/name/monkey/retromusic/service/MusicService.java

@@ -618,7 +618,7 @@ public class MusicService extends Service implements
                 break;
             case SHUFFLE_MODE_NONE:
                 this.shuffleMode = shuffleMode;
-                int currentSongId = Objects.requireNonNull(getCurrentSong()).getId();
+                long currentSongId = Objects.requireNonNull(getCurrentSong()).getId();
                 playingQueue = new ArrayList<>(originalPlayingQueue);
                 int newPosition = 0;
                 if (getPlayingQueue() != null) {

app/src/main/java/code/name/monkey/retromusic/util/AutoGeneratedPlaylistBitmap.java

@@ -34,7 +34,7 @@ public class AutoGeneratedPlaylistBitmap {
         if (songPlaylist == null) return null;
         long start = System.currentTimeMillis();
         // lấy toàn bộ album id, loại bỏ trùng nhau
-        ArrayList<Integer> albumID = new ArrayList<>();
+        List<Long> albumID = new ArrayList<>();
         for (Song song : songPlaylist) {
             if (!albumID.contains(song.getAlbumId())) albumID.add(song.getAlbumId());
         }
@@ -42,8 +42,8 @@ public class AutoGeneratedPlaylistBitmap {
         long start2 = System.currentTimeMillis() - start;
 
         // lấy toàn bộ art tồn tại
-        ArrayList<Bitmap> art = new ArrayList<Bitmap>();
+        List<Bitmap> art = new ArrayList<Bitmap>();
-        for (Integer id : albumID) {
+        for (Long id : albumID) {
             Bitmap bitmap = getBitmapWithAlbumId(context, id);
             if (bitmap != null) art.add(bitmap);
             if (art.size() == 6) break;
@@ -168,7 +168,7 @@ public class AutoGeneratedPlaylistBitmap {
         else return bitmap;
     }
 
-    private static Bitmap getBitmapWithAlbumId(@NonNull Context context, Integer id) {
+    private static Bitmap getBitmapWithAlbumId(@NonNull Context context, Long id) {
         try {
             return Glide.with(context)
                     .load(MusicUtil.INSTANCE.getMediaStoreAlbumCoverUri(id))

app/src/main/java/code/name/monkey/retromusic/util/MusicUtil.kt

@@ -16,6 +16,7 @@ import androidx.core.content.FileProvider
 import androidx.fragment.app.FragmentActivity
 import code.name.monkey.retromusic.R
 import code.name.monkey.retromusic.db.SongEntity
+import code.name.monkey.retromusic.extensions.getLong
 import code.name.monkey.retromusic.helper.MusicPlayerRemote.removeFromQueue
 import code.name.monkey.retromusic.model.Artist
 import code.name.monkey.retromusic.model.Playlist
@@ -85,7 +86,7 @@ object MusicUtil : KoinComponent {
         return albumArtDir
     }
 
-    fun deleteAlbumArt(context: Context, albumId: Int) {
+    fun deleteAlbumArt(context: Context, albumId: Long) {
         val contentResolver = context.contentResolver
         val localUri = Uri.parse("content://media/external/audio/albumart")
         contentResolver.delete(ContentUris.withAppendedId(localUri, albumId.toLong()), null, null)
@@ -175,10 +176,9 @@ object MusicUtil : KoinComponent {
         return lyrics
     }
 
-    fun getMediaStoreAlbumCoverUri(albumId: Int): Uri {
+    fun getMediaStoreAlbumCoverUri(albumId: Long): Uri {
-        val sArtworkUri =
+        val sArtworkUri = Uri.parse("content://media/external/audio/albumart")
-            Uri.parse("content://media/external/audio/albumart")
+        return ContentUris.withAppendedId(sArtworkUri, albumId)
-        return ContentUris.withAppendedId(sArtworkUri, albumId.toLong())
     }
 
 
@@ -249,7 +249,7 @@ object MusicUtil : KoinComponent {
         return "$songCount $songString"
     }
 
-    fun getSongFileUri(songId: Int): Uri {
+    fun getSongFileUri(songId: Long): Uri {
         return ContentUris.withAppendedId(
             MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,
             songId.toLong()
@@ -268,18 +268,13 @@ object MusicUtil : KoinComponent {
         return if (year > 0) year.toString() else "-"
     }
 
-    fun indexOfSongInList(songs: List<Song>, songId: Int): Int {
+    fun indexOfSongInList(songs: List<Song>, songId: Long): Int {
-        for (i in songs.indices) {
+        return songs.indexOfFirst { it.id == songId }
-            if (songs[i].id == songId) {
-                return i
-            }
-        }
-        return -1
     }
 
     fun insertAlbumArt(
         context: Context,
-        albumId: Int,
+        albumId: Long,
         path: String?
     ) {
         val contentResolver = context.contentResolver
@@ -304,9 +299,19 @@ object MusicUtil : KoinComponent {
         return tempName == "unknown" || tempName == "<unknown>"
     }
 
+    fun isVariousArtists(artistName: String?): Boolean {
+        if (TextUtils.isEmpty(artistName)) {
+            return false
+        }
+        if (artistName == Artist.VARIOUS_ARTISTS_DISPLAY_NAME) {
+            return true
+        }
+        return false
+    }
+
     fun isFavorite(context: Context, song: Song): Boolean {
         return PlaylistsUtil
-            .doPlaylistContains(context, getFavoritesPlaylist(context).id.toLong(), song.id)
+            .doPlaylistContains(context, getFavoritesPlaylist(context).id, song.id)
     }
 
     fun isFavoritePlaylist(
@@ -387,7 +392,7 @@ object MusicUtil : KoinComponent {
                     // as from the album art cache
                     cursor.moveToFirst()
                     while (!cursor.isAfterLast) {
-                        val id = cursor.getInt(0)
+                        val id = cursor.getLong(BaseColumns._ID)
                         val song: Song = songRepository.song(id)
                         removeFromQueue(song)
                         cursor.moveToNext()
@@ -452,7 +457,7 @@ object MusicUtil : KoinComponent {
                 // as from the album art cache
                 cursor.moveToFirst()
                 while (!cursor.isAfterLast) {
-                    val id: Int = cursor.getInt(0)
+                    val id = cursor.getLong(BaseColumns._ID)
                     val song: Song = RealSongRepository(context).song(id)
                     removeFromQueue(song)
                     cursor.moveToNext()

app/src/main/java/code/name/monkey/retromusic/util/PlaylistsUtil.java

@@ -43,7 +43,7 @@ import static android.provider.MediaStore.Audio.Playlists.EXTERNAL_CONTENT_URI;
 
 public class PlaylistsUtil {
 
-    public static int createPlaylist(@NonNull final Context context, @Nullable final String name) {
+    public static long createPlaylist(@NonNull final Context context, @Nullable final String name) {
         int id = -1;
         if (name != null && name.length() > 0) {
             try {
@@ -101,13 +101,13 @@ public class PlaylistsUtil {
         }
     }
 
-    public static void addToPlaylist(@NonNull final Context context, final Song song, final int playlistId, final boolean showToastOnFinish) {
+    public static void addToPlaylist(@NonNull final Context context, final Song song, final long playlistId, final boolean showToastOnFinish) {
         List<Song> helperList = new ArrayList<>();
         helperList.add(song);
         addToPlaylist(context, helperList, playlistId, showToastOnFinish);
     }
 
-    public static void addToPlaylist(@NonNull final Context context, @NonNull final List<Song> songs, final int playlistId, final boolean showToastOnFinish) {
+    public static void addToPlaylist(@NonNull final Context context, @NonNull final List<Song> songs, final long playlistId, final boolean showToastOnFinish) {
         final int size = songs.size();
         final ContentResolver resolver = context.getContentResolver();
         final String[] projection = new String[]{
@@ -180,7 +180,7 @@ public class PlaylistsUtil {
         return "";
     }
 
-    public static void removeFromPlaylist(@NonNull final Context context, @NonNull final Song song, int playlistId) {
+    public static void removeFromPlaylist(@NonNull final Context context, @NonNull final Song song, long playlistId) {
         Uri uri = MediaStore.Audio.Playlists.Members.getContentUri(
                 "external", playlistId);
         String selection = MediaStore.Audio.Playlists.Members.AUDIO_ID + " =?";
@@ -193,7 +193,7 @@ public class PlaylistsUtil {
     }
 
     public static void removeFromPlaylist(@NonNull final Context context, @NonNull final List<PlaylistSong> songs) {
-        final int playlistId = songs.get(0).getPlaylistId();
+        final long playlistId = songs.get(0).getPlaylistId();
         Uri uri = MediaStore.Audio.Playlists.Members.getContentUri(
                 "external", playlistId);
         String[] selectionArgs = new String[songs.size()];
@@ -211,7 +211,7 @@ public class PlaylistsUtil {
         }
     }
 
-    public static boolean doPlaylistContains(@NonNull final Context context, final long playlistId, final int songId) {
+    public static boolean doPlaylistContains(@NonNull final Context context, final long playlistId, final long songId) {
         if (playlistId != -1) {
             try {
                 Cursor c = context.getContentResolver().query(
@@ -229,7 +229,7 @@ public class PlaylistsUtil {
         return false;
     }
 
-    public static boolean moveItem(@NonNull final Context context, int playlistId, int from, int to) {
+    public static boolean moveItem(@NonNull final Context context, long playlistId, int from, int to) {
         return MediaStore.Audio.Playlists.Members.moveItem(context.getContentResolver(),
                 playlistId, from, to);
     }

app/src/main/res/layout-land/fragment_album_details.xml

@@ -6,6 +6,7 @@
     android:layout_height="match_parent"
     android:background="?attr/colorSurface"
     android:orientation="vertical"
+    android:transitionName="@string/transition_album_art"
     tools:ignore="UnusedAttribute">
 
     <FrameLayout
@@ -46,9 +47,7 @@
         android:layout_marginStart="16dp"
         android:layout_marginTop="8dp"
         android:layout_marginEnd="16dp"
-        android:transitionName="@string/transition_album_art"
         app:cardCornerRadius="24dp"
-
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toStartOf="@+id/container"
         app:layout_constraintHorizontal_bias="0.5"

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

@@ -3,7 +3,8 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
-    android:layout_height="match_parent">
+    android:layout_height="match_parent"
+    android:transitionName="@string/transition_album_art">
 
     <com.google.android.material.appbar.AppBarLayout
         android:id="@+id/appBarLayout"
@@ -48,7 +49,6 @@
                 android:layout_marginStart="16dp"
                 android:layout_marginTop="8dp"
                 android:layout_marginEnd="16dp"
-                android:transitionName="@string/transition_album_art"
                 app:cardCornerRadius="24dp"
                 app:layout_constraintDimensionRatio="1:1"
                 app:layout_constraintEnd_toEndOf="parent"

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

@@ -12,6 +12,7 @@
         android:layout_height="wrap_content"
         android:clipToPadding="false"
         android:overScrollMode="never"
+        android:transitionGroup="true"
         android:scrollbars="none"
         app:layout_dodgeInsetEdges="bottom"
         tools:listitem="@layout/item_list" />

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

@@ -41,9 +41,5 @@
         android:label=""
         tools:layout="@layout/fragment_banner_home" />
 
-    <fragment
+
-        android:id="@+id/action_import_playlist"
-        android:name="code.name.monkey.retromusic.fragments.playlists.ImportPlaylistFragment"
-        android:label="ImportPlaylist"
-        tools:layout="@layout/fragment_main_activity_recycler_view" />
 </navigation>

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

@@ -32,7 +32,7 @@
         tools:layout="@layout/fragment_album_details">
         <argument
             android:name="extra_album_id"
-            app:argType="integer" />
+            app:argType="long" />
     </fragment>
 
     <fragment
@@ -42,7 +42,7 @@
         tools:layout="@layout/fragment_artist_details">
         <argument
             android:name="extra_artist_id"
-            app:argType="integer" />
+            app:argType="long" />
     </fragment>
 
     <fragment

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

@@ -11,6 +11,7 @@
     <item name="action_album_sort_order_desc" type="id" />
     <item name="action_album_sort_order_artist" type="id" />
     <item name="action_album_sort_order_year" type="id" />
+    <item name="action_import_playlist" type="id" />
     <item name="action_artist_sort_order_asc" type="id" />
     <item name="action_artist_sort_order_desc" type="id" />
     <item name="action_song_sort_order_asc" type="id" />