music: add more playlist messages

Add more types of playlist messages corresponding to other actions, so
they can be indicated in the UI only when the process is complete.

This is somewhat incomplete. It does not include indicating errors for
other playlist operations (Which I want to do), and neither does it
handle situations in which some playlist operations and up reducing
to others (i.e import -> create). I need to do that later.

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

@@ -44,6 +44,7 @@ import org.oxycblt.auxio.music.Music
 import org.oxycblt.auxio.music.MusicParent
 import org.oxycblt.auxio.music.MusicViewModel
 import org.oxycblt.auxio.music.PlaylistDecision
+import org.oxycblt.auxio.music.PlaylistMessage
 import org.oxycblt.auxio.music.Song
 import org.oxycblt.auxio.music.info.Disc
 import org.oxycblt.auxio.playback.PlaybackDecision
@@ -55,6 +56,7 @@ import org.oxycblt.auxio.util.logD
 import org.oxycblt.auxio.util.navigateSafe
 import org.oxycblt.auxio.util.overrideOnOverflowMenuClick
 import org.oxycblt.auxio.util.setFullWidthLookup
+import org.oxycblt.auxio.util.showToast
 import org.oxycblt.auxio.util.unlikelyToBeNull
 
 /**
@@ -126,6 +128,7 @@ class AlbumDetailFragment :
         collect(listModel.menu.flow, ::handleMenu)
         collectImmediately(listModel.selected, ::updateSelection)
         collect(musicModel.playlistDecision.flow, ::handlePlaylistDecision)
+        collect(musicModel.playlistMessage.flow, ::handlePlaylistMessage)
         collectImmediately(
             playbackModel.song, playbackModel.parent, playbackModel.isPlaying, ::updatePlayback)
         collect(playbackModel.playbackDecision.flow, ::handlePlaybackDecision)
@@ -281,6 +284,12 @@ class AlbumDetailFragment :
         findNavController().navigateSafe(directions)
     }
 
+    private fun handlePlaylistMessage(message: PlaylistMessage?) {
+        if (message == null) return
+        requireContext().showToast(message.stringRes)
+        musicModel.playlistMessage.consume()
+    }
+
     private fun updatePlayback(song: Song?, parent: MusicParent?, isPlaying: Boolean) {
         albumListAdapter.setPlaying(
             song.takeIf { parent == detailModel.currentAlbum.value }, isPlaying)

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

@@ -45,6 +45,7 @@ import org.oxycblt.auxio.music.Music
 import org.oxycblt.auxio.music.MusicParent
 import org.oxycblt.auxio.music.MusicViewModel
 import org.oxycblt.auxio.music.PlaylistDecision
+import org.oxycblt.auxio.music.PlaylistMessage
 import org.oxycblt.auxio.music.Song
 import org.oxycblt.auxio.playback.PlaybackDecision
 import org.oxycblt.auxio.playback.PlaybackViewModel
@@ -54,6 +55,7 @@ import org.oxycblt.auxio.util.logD
 import org.oxycblt.auxio.util.navigateSafe
 import org.oxycblt.auxio.util.overrideOnOverflowMenuClick
 import org.oxycblt.auxio.util.setFullWidthLookup
+import org.oxycblt.auxio.util.showToast
 import org.oxycblt.auxio.util.unlikelyToBeNull
 
 /**
@@ -128,6 +130,7 @@ class ArtistDetailFragment :
         collect(listModel.menu.flow, ::handleMenu)
         collectImmediately(listModel.selected, ::updateSelection)
         collect(musicModel.playlistDecision.flow, ::handlePlaylistDecision)
+        collect(musicModel.playlistMessage.flow, ::handlePlaylistMessage)
         collectImmediately(
             playbackModel.song, playbackModel.parent, playbackModel.isPlaying, ::updatePlayback)
         collect(playbackModel.playbackDecision.flow, ::handlePlaybackDecision)
@@ -284,6 +287,12 @@ class ArtistDetailFragment :
         findNavController().navigateSafe(directions)
     }
 
+    private fun handlePlaylistMessage(message: PlaylistMessage?) {
+        if (message == null) return
+        requireContext().showToast(message.stringRes)
+        musicModel.playlistMessage.consume()
+    }
+
     private fun updatePlayback(song: Song?, parent: MusicParent?, isPlaying: Boolean) {
         val currentArtist = unlikelyToBeNull(detailModel.currentArtist.value)
         val playingItem =

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

@@ -45,6 +45,7 @@ import org.oxycblt.auxio.music.Music
 import org.oxycblt.auxio.music.MusicParent
 import org.oxycblt.auxio.music.MusicViewModel
 import org.oxycblt.auxio.music.PlaylistDecision
+import org.oxycblt.auxio.music.PlaylistMessage
 import org.oxycblt.auxio.music.Song
 import org.oxycblt.auxio.playback.PlaybackDecision
 import org.oxycblt.auxio.playback.PlaybackViewModel
@@ -54,6 +55,7 @@ import org.oxycblt.auxio.util.logD
 import org.oxycblt.auxio.util.navigateSafe
 import org.oxycblt.auxio.util.overrideOnOverflowMenuClick
 import org.oxycblt.auxio.util.setFullWidthLookup
+import org.oxycblt.auxio.util.showToast
 import org.oxycblt.auxio.util.unlikelyToBeNull
 
 /**
@@ -125,7 +127,8 @@ class GenreDetailFragment :
         collect(detailModel.toShow.flow, ::handleShow)
         collect(listModel.menu.flow, ::handleMenu)
         collectImmediately(listModel.selected, ::updateSelection)
-        collect(musicModel.playlistDecision.flow, ::handleDecision)
+        collect(musicModel.playlistDecision.flow, ::handlePlaylistDecision)
+        collect(musicModel.playlistMessage.flow, ::handlePlaylistMessage)
         collectImmediately(
             playbackModel.song, playbackModel.parent, playbackModel.isPlaying, ::updatePlayback)
         collect(playbackModel.playbackDecision.flow, ::handlePlaybackDecision)
@@ -259,7 +262,7 @@ class GenreDetailFragment :
         }
     }
 
-    private fun handleDecision(decision: PlaylistDecision?) {
+    private fun handlePlaylistDecision(decision: PlaylistDecision?) {
         if (decision == null) return
         val directions =
             when (decision) {
@@ -277,6 +280,12 @@ class GenreDetailFragment :
         findNavController().navigateSafe(directions)
     }
 
+    private fun handlePlaylistMessage(message: PlaylistMessage?) {
+        if (message == null) return
+        requireContext().showToast(message.stringRes)
+        musicModel.playlistMessage.consume()
+    }
+
     private fun updatePlayback(song: Song?, parent: MusicParent?, isPlaying: Boolean) {
         val currentGenre = unlikelyToBeNull(detailModel.currentGenre.value)
         val playingItem =

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

@@ -49,6 +49,7 @@ import org.oxycblt.auxio.music.MusicParent
 import org.oxycblt.auxio.music.MusicViewModel
 import org.oxycblt.auxio.music.Playlist
 import org.oxycblt.auxio.music.PlaylistDecision
+import org.oxycblt.auxio.music.PlaylistMessage
 import org.oxycblt.auxio.music.Song
 import org.oxycblt.auxio.music.external.M3U
 import org.oxycblt.auxio.playback.PlaybackDecision
@@ -61,6 +62,7 @@ import org.oxycblt.auxio.util.logW
 import org.oxycblt.auxio.util.navigateSafe
 import org.oxycblt.auxio.util.overrideOnOverflowMenuClick
 import org.oxycblt.auxio.util.setFullWidthLookup
+import org.oxycblt.auxio.util.showToast
 import org.oxycblt.auxio.util.unlikelyToBeNull
 
 /**
@@ -159,7 +161,8 @@ class PlaylistDetailFragment :
         collect(detailModel.toShow.flow, ::handleShow)
         collect(listModel.menu.flow, ::handleMenu)
         collectImmediately(listModel.selected, ::updateSelection)
-        collect(musicModel.playlistDecision.flow, ::handleDecision)
+        collect(musicModel.playlistDecision.flow, ::handlePlaylistDecision)
+        collect(musicModel.playlistMessage.flow, ::handlePlaylistMessage)
         collectImmediately(
             playbackModel.song, playbackModel.parent, playbackModel.isPlaying, ::updatePlayback)
         collect(playbackModel.playbackDecision.flow, ::handlePlaybackDecision)
@@ -333,7 +336,7 @@ class PlaylistDetailFragment :
         updateMultiToolbar()
     }
 
-    private fun handleDecision(decision: PlaylistDecision?) {
+    private fun handlePlaylistDecision(decision: PlaylistDecision?) {
         if (decision == null) return
         val directions =
             when (decision) {
@@ -369,6 +372,12 @@ class PlaylistDetailFragment :
         findNavController().navigateSafe(directions)
     }
 
+    private fun handlePlaylistMessage(message: PlaylistMessage?) {
+        if (message == null) return
+        requireContext().showToast(message.stringRes)
+        musicModel.playlistMessage.consume()
+    }
+
     private fun updatePlayback(song: Song?, parent: MusicParent?, isPlaying: Boolean) {
         // Prefer songs that are playing from this playlist.
         playlistListAdapter.setPlaying(

app/src/main/java/org/oxycblt/auxio/home/HomeFragment.kt

@@ -70,7 +70,7 @@ import org.oxycblt.auxio.music.NoMusicException
 import org.oxycblt.auxio.music.PERMISSION_READ_AUDIO
 import org.oxycblt.auxio.music.Playlist
 import org.oxycblt.auxio.music.PlaylistDecision
-import org.oxycblt.auxio.music.PlaylistError
+import org.oxycblt.auxio.music.PlaylistMessage
 import org.oxycblt.auxio.music.Song
 import org.oxycblt.auxio.music.external.M3U
 import org.oxycblt.auxio.playback.PlaybackViewModel
@@ -211,7 +211,7 @@ class HomeFragment :
         collectImmediately(listModel.selected, ::updateSelection)
         collectImmediately(musicModel.indexingState, ::updateIndexerState)
         collect(musicModel.playlistDecision.flow, ::handleDecision)
-        collectImmediately(musicModel.playlistError.flow, ::handlePlaylistError)
+        collectImmediately(musicModel.playlistMessage.flow, ::handlePlaylistMessage)
         collect(detailModel.toShow.flow, ::handleShow)
     }
 
@@ -503,19 +503,10 @@ class HomeFragment :
         findNavController().navigateSafe(directions)
     }
 
-    private fun handlePlaylistError(error: PlaylistError?) {
+    private fun handlePlaylistMessage(message: PlaylistMessage?) {
-        when (error) {
+        if (message == null) return
-            is PlaylistError.ImportFailed -> {
+        requireContext().showToast(message.stringRes)
-                requireContext().showToast(R.string.err_import_failed)
+        musicModel.playlistMessage.consume()
-                musicModel.importError.consume()
-            }
-            is PlaylistError.ExportFailed -> {
-                requireContext().showToast(R.string.err_export_failed)
-                musicModel.importError.consume()
-            }
-            null -> {}
-        }
-        musicModel.playlistError.consume()
     }
 
     private fun updateFab(songs: List<Song>, isFastScrolling: Boolean) {

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

@@ -27,6 +27,7 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.launch
+import org.oxycblt.auxio.R
 import org.oxycblt.auxio.list.ListSettings
 import org.oxycblt.auxio.music.external.ExportConfig
 import org.oxycblt.auxio.music.external.ExternalPlaylistManager
@@ -65,19 +66,9 @@ constructor(
     val playlistDecision: Event<PlaylistDecision>
         get() = _playlistDecision
 
-    private val _playlistError = MutableEvent<PlaylistError>()
+    private val _playlistMessage = MutableEvent<PlaylistMessage>()
-    val playlistError: Event<PlaylistError>
+    val playlistMessage: Event<PlaylistMessage>
-        get() = _playlistError
+        get() = _playlistMessage
-
-    private val _importError = MutableEvent<Unit>()
-    /** Flag for when playlist importing failed. Consume this and show an error if active. */
-    val importError: Event<Unit>
-        get() = _importError
-
-    private val _exportError = MutableEvent<Unit>()
-    /** Flag for when playlist exporting failed. Consume this and show an error if active. */
-    val exportError: Event<Unit>
-        get() = _exportError
 
     init {
         musicRepository.addUpdateListener(this)
@@ -127,7 +118,10 @@ constructor(
     fun createPlaylist(name: String? = null, songs: List<Song> = listOf()) {
         if (name != null) {
             logD("Creating $name with ${songs.size} songs]")
-            viewModelScope.launch(Dispatchers.IO) { musicRepository.createPlaylist(name, songs) }
+            viewModelScope.launch(Dispatchers.IO) {
+                musicRepository.createPlaylist(name, songs)
+                _playlistMessage.put(PlaylistMessage.NewPlaylistSuccess)
+            }
         } else {
             logD("Launching creation dialog for ${songs.size} songs")
             _playlistDecision.put(PlaylistDecision.New(songs))
@@ -148,7 +142,7 @@ constructor(
             viewModelScope.launch(Dispatchers.IO) {
                 val importedPlaylist = externalPlaylistManager.import(uri)
                 if (importedPlaylist == null) {
-                    _playlistError.put(PlaylistError.ImportFailed)
+                    _playlistMessage.put(PlaylistMessage.ImportFailed)
                     return@launch
                 }
 
@@ -156,14 +150,16 @@ constructor(
                 val songs = importedPlaylist.paths.mapNotNull(deviceLibrary::findSongByPath)
 
                 if (songs.isEmpty()) {
-                    _playlistError.put(PlaylistError.ImportFailed)
+                    _playlistMessage.put(PlaylistMessage.ImportFailed)
                     return@launch
                 }
                 // TODO Require the user to name it something else if the name is a duplicate of
                 //  a prior playlist
                 if (target !== null) {
                     musicRepository.rewritePlaylist(target, songs)
+                    _playlistMessage.put(PlaylistMessage.ImportSuccess)
                 } else {
+                    // TODO: Have to properly propagate the "Playlist Created" message
                     createPlaylist(importedPlaylist.name, songs)
                 }
             }
@@ -183,8 +179,10 @@ constructor(
         if (uri != null && config != null) {
             logD("Exporting playlist to $uri")
             viewModelScope.launch(Dispatchers.IO) {
-                if (!externalPlaylistManager.export(playlist, uri, config)) {
+                if (externalPlaylistManager.export(playlist, uri, config)) {
-                    _playlistError.put(PlaylistError.ExportFailed)
+                    _playlistMessage.put(PlaylistMessage.ExportSuccess)
+                } else {
+                    _playlistMessage.put(PlaylistMessage.ExportFailed)
                 }
             }
         } else {
@@ -202,7 +200,10 @@ constructor(
     fun renamePlaylist(playlist: Playlist, name: String? = null) {
         if (name != null) {
             logD("Renaming $playlist to $name")
-            viewModelScope.launch(Dispatchers.IO) { musicRepository.renamePlaylist(playlist, name) }
+            viewModelScope.launch(Dispatchers.IO) {
+                musicRepository.renamePlaylist(playlist, name)
+                _playlistMessage.put(PlaylistMessage.RenameSuccess)
+            }
         } else {
             logD("Launching rename dialog for $playlist")
             _playlistDecision.put(PlaylistDecision.Rename(playlist))
@@ -219,7 +220,10 @@ constructor(
     fun deletePlaylist(playlist: Playlist, rude: Boolean = false) {
         if (rude) {
             logD("Deleting $playlist")
-            viewModelScope.launch(Dispatchers.IO) { musicRepository.deletePlaylist(playlist) }
+            viewModelScope.launch(Dispatchers.IO) {
+                musicRepository.deletePlaylist(playlist)
+                _playlistMessage.put(PlaylistMessage.DeleteSuccess)
+            }
         } else {
             logD("Launching deletion dialog for $playlist")
             _playlistDecision.put(PlaylistDecision.Delete(playlist))
@@ -279,7 +283,10 @@ constructor(
     fun addToPlaylist(songs: List<Song>, playlist: Playlist? = null) {
         if (playlist != null) {
             logD("Adding ${songs.size} songs to $playlist")
-            viewModelScope.launch(Dispatchers.IO) { musicRepository.addToPlaylist(songs, playlist) }
+            viewModelScope.launch(Dispatchers.IO) {
+                musicRepository.addToPlaylist(songs, playlist)
+                _playlistMessage.put(PlaylistMessage.AddSuccess)
+            }
         } else {
             logD("Launching addition dialog for songs=${songs.size}")
             _playlistDecision.put(PlaylistDecision.Add(songs))
@@ -354,8 +361,46 @@ sealed interface PlaylistDecision {
     data class Add(val songs: List<Song>) : PlaylistDecision
 }
 
-sealed interface PlaylistError {
+sealed interface PlaylistMessage {
-    data object ImportFailed : PlaylistError
+    val stringRes: Int
 
-    data object ExportFailed : PlaylistError
+    data object NewPlaylistSuccess : PlaylistMessage {
+        override val stringRes: Int
+            get() = R.string.lng_playlist_created
+    }
+
+    data object ImportSuccess : PlaylistMessage {
+        override val stringRes: Int
+            get() = R.string.lng_playlist_imported
+    }
+
+    data object ImportFailed : PlaylistMessage {
+        override val stringRes: Int
+            get() = R.string.err_import_failed
+    }
+
+    data object RenameSuccess : PlaylistMessage {
+        override val stringRes: Int
+            get() = R.string.lng_playlist_renamed
+    }
+
+    data object DeleteSuccess : PlaylistMessage {
+        override val stringRes: Int
+            get() = R.string.lng_playlist_deleted
+    }
+
+    data object AddSuccess : PlaylistMessage {
+        override val stringRes: Int
+            get() = R.string.lng_playlist_added
+    }
+
+    data object ExportSuccess : PlaylistMessage {
+        override val stringRes: Int
+            get() = R.string.lng_playlist_exported
+    }
+
+    data object ExportFailed : PlaylistMessage {
+        override val stringRes: Int
+            get() = R.string.err_export_failed
+    }
 }

app/src/main/java/org/oxycblt/auxio/music/decision/AddToPlaylistDialog.kt

@@ -37,7 +37,6 @@ import org.oxycblt.auxio.ui.ViewBindingMaterialDialogFragment
 import org.oxycblt.auxio.util.collectImmediately
 import org.oxycblt.auxio.util.logD
 import org.oxycblt.auxio.util.navigateSafe
-import org.oxycblt.auxio.util.showToast
 
 /**
  * A dialog that allows the user to pick a specific playlist to add song(s) to.
@@ -86,7 +85,6 @@ class AddToPlaylistDialog :
 
     override fun onClick(item: PlaylistChoice, viewHolder: RecyclerView.ViewHolder) {
         musicModel.addToPlaylist(pickerModel.currentSongsToAdd.value ?: return, item.playlist)
-        requireContext().showToast(R.string.lng_playlist_added)
         findNavController().navigateUp()
     }
 

app/src/main/java/org/oxycblt/auxio/music/decision/DeletePlaylistDialog.kt

@@ -33,7 +33,6 @@ import org.oxycblt.auxio.music.Playlist
 import org.oxycblt.auxio.ui.ViewBindingMaterialDialogFragment
 import org.oxycblt.auxio.util.collectImmediately
 import org.oxycblt.auxio.util.logD
-import org.oxycblt.auxio.util.showToast
 import org.oxycblt.auxio.util.unlikelyToBeNull
 
 /**
@@ -56,7 +55,6 @@ class DeletePlaylistDialog : ViewBindingMaterialDialogFragment<DialogDeletePlayl
                 // Now we can delete the playlist for-real this time.
                 musicModel.deletePlaylist(
                     unlikelyToBeNull(pickerModel.currentPlaylistToDelete.value), rude = true)
-                requireContext().showToast(R.string.lng_playlist_deleted)
             }
             .setNegativeButton(R.string.lbl_cancel, null)
     }

app/src/main/java/org/oxycblt/auxio/music/decision/ExportPlaylistDialog.kt

@@ -98,7 +98,6 @@ class ExportPlaylistDialog : ViewBindingMaterialDialogFragment<DialogPlaylistExp
 
         binding.exportWindowsPaths.setOnClickListener { _ ->
             val current = pickerModel.currentExportConfig.value
-            logD("change")
             pickerModel.setExportConfig(current.copy(windowsPaths = !current.windowsPaths))
         }
 

app/src/main/java/org/oxycblt/auxio/music/decision/NewPlaylistDialog.kt

@@ -33,7 +33,6 @@ import org.oxycblt.auxio.music.MusicViewModel
 import org.oxycblt.auxio.ui.ViewBindingMaterialDialogFragment
 import org.oxycblt.auxio.util.collectImmediately
 import org.oxycblt.auxio.util.logD
-import org.oxycblt.auxio.util.showToast
 import org.oxycblt.auxio.util.unlikelyToBeNull
 
 /**
@@ -62,7 +61,6 @@ class NewPlaylistDialog : ViewBindingMaterialDialogFragment<DialogPlaylistNameBi
                     }
                 // TODO: Navigate to playlist if there are songs in it
                 musicModel.createPlaylist(name, pendingPlaylist.songs)
-                requireContext().showToast(R.string.lng_playlist_created)
                 findNavController().apply {
                     navigateUp()
                     // Do an additional navigation away from the playlist addition dialog, if

app/src/main/java/org/oxycblt/auxio/music/decision/RenamePlaylistDialog.kt

@@ -34,7 +34,6 @@ import org.oxycblt.auxio.music.Playlist
 import org.oxycblt.auxio.ui.ViewBindingMaterialDialogFragment
 import org.oxycblt.auxio.util.collectImmediately
 import org.oxycblt.auxio.util.logD
-import org.oxycblt.auxio.util.showToast
 import org.oxycblt.auxio.util.unlikelyToBeNull
 
 /**
@@ -58,7 +57,6 @@ class RenamePlaylistDialog : ViewBindingMaterialDialogFragment<DialogPlaylistNam
                 val playlist = unlikelyToBeNull(pickerModel.currentPlaylistToRename.value)
                 val chosenName = pickerModel.chosenName.value as ChosenName.Valid
                 musicModel.renamePlaylist(playlist, chosenName.value)
-                requireContext().showToast(R.string.lng_playlist_renamed)
                 findNavController().navigateUp()
             }
             .setNegativeButton(R.string.lbl_cancel, null)

app/src/main/java/org/oxycblt/auxio/search/SearchFragment.kt

@@ -52,6 +52,7 @@ import org.oxycblt.auxio.music.MusicParent
 import org.oxycblt.auxio.music.MusicViewModel
 import org.oxycblt.auxio.music.Playlist
 import org.oxycblt.auxio.music.PlaylistDecision
+import org.oxycblt.auxio.music.PlaylistMessage
 import org.oxycblt.auxio.music.Song
 import org.oxycblt.auxio.music.external.M3U
 import org.oxycblt.auxio.playback.PlaybackDecision
@@ -64,6 +65,7 @@ import org.oxycblt.auxio.util.logD
 import org.oxycblt.auxio.util.logW
 import org.oxycblt.auxio.util.navigateSafe
 import org.oxycblt.auxio.util.setFullWidthLookup
+import org.oxycblt.auxio.util.showToast
 
 /**
  * The [ListFragment] providing search functionality for the music library.
@@ -160,7 +162,8 @@ class SearchFragment : ListFragment<Music, FragmentSearchBinding>() {
         collectImmediately(searchModel.searchResults, ::updateSearchResults)
         collectImmediately(listModel.selected, ::updateSelection)
         collect(listModel.menu.flow, ::handleMenu)
-        collect(musicModel.playlistDecision.flow, ::handleDecision)
+        collect(musicModel.playlistDecision.flow, ::handlePlaylistDecision)
+        collect(musicModel.playlistMessage.flow, ::handlePlaylistMessage)
         collectImmediately(
             playbackModel.song, playbackModel.parent, playbackModel.isPlaying, ::updatePlayback)
         collect(playbackModel.playbackDecision.flow, ::handlePlaybackDecision)
@@ -302,7 +305,7 @@ class SearchFragment : ListFragment<Music, FragmentSearchBinding>() {
         }
     }
 
-    private fun handleDecision(decision: PlaylistDecision?) {
+    private fun handlePlaylistDecision(decision: PlaylistDecision?) {
         if (decision == null) return
         val directions =
             when (decision) {
@@ -340,6 +343,12 @@ class SearchFragment : ListFragment<Music, FragmentSearchBinding>() {
         findNavController().navigateSafe(directions)
     }
 
+    private fun handlePlaylistMessage(message: PlaylistMessage?) {
+        if (message == null) return
+        requireContext().showToast(message.stringRes)
+        musicModel.playlistMessage.consume()
+    }
+
     private fun updatePlayback(song: Song?, parent: MusicParent?, isPlaying: Boolean) {
         searchAdapter.setPlaying(parent ?: song, isPlaying)
     }

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

@@ -196,7 +196,9 @@
     <string name="lng_observing">Monitoring your music library for changes…</string>
     <string name="lng_queue_added">Added to queue</string>
     <string name="lng_playlist_created">Playlist created</string>
+    <string name="lng_playlist_imported">Playlist imported</string>
     <string name="lng_playlist_renamed">Playlist renamed</string>
+    <string name="lng_playlist_exported">Playlist exported</string>
     <string name="lng_playlist_deleted">Playlist deleted</string>
     <string name="lng_playlist_added">Added to playlist</string>
     <string name="lng_author">Developed by Alexander Capehart</string>