Clean up player code

app/src/main/java/dev/jdtech/jellyfin/PlayerActivity.kt

@@ -6,30 +6,25 @@ import android.view.View
 import android.view.WindowManager
 import androidx.activity.viewModels
 import androidx.navigation.navArgs
-import com.google.android.exoplayer2.ui.StyledPlayerView
 import dagger.hilt.android.AndroidEntryPoint
+import dev.jdtech.jellyfin.databinding.ActivityPlayerBinding
 import dev.jdtech.jellyfin.viewmodels.PlayerActivityViewModel
 import timber.log.Timber
 
 @AndroidEntryPoint
 class PlayerActivity : AppCompatActivity() {
+    private lateinit var binding: ActivityPlayerBinding
     private val viewModel: PlayerActivityViewModel by viewModels()
-
     private val args: PlayerActivityArgs by navArgs()
 
-    private lateinit var playerView: StyledPlayerView
-
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         Timber.d("Creating player activity")
-        setContentView(R.layout.activity_player)
+        binding = ActivityPlayerBinding.inflate(layoutInflater)
+        setContentView(binding.root)
         window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
 
-        playerView = findViewById(R.id.video_view)
-
-        viewModel.player.observe(this, {
-            playerView.player = it
-        })
+        binding.playerView.player = viewModel.player
 
         viewModel.navigateBack.observe(this, {
             if (it) {
@@ -37,21 +32,19 @@ class PlayerActivity : AppCompatActivity() {
             }
         })
 
-        if (viewModel.player.value == null) {
-            viewModel.initializePlayer(args.items)
-        }
+        viewModel.initializePlayer(args.items)
         hideSystemUI()
     }
 
     override fun onPause() {
         super.onPause()
-        viewModel.playWhenReady = viewModel.player.value?.playWhenReady == true
-        playerView.player?.playWhenReady = false
+        viewModel.playWhenReady = viewModel.player.playWhenReady == true
+        viewModel.player.playWhenReady = false
     }
 
     override fun onResume() {
         super.onResume()
-        viewModel.player.value?.playWhenReady = viewModel.playWhenReady
+        viewModel.player.playWhenReady = viewModel.playWhenReady
         hideSystemUI()
     }
 

app/src/main/java/dev/jdtech/jellyfin/viewmodels/PlayerActivityViewModel.kt

@@ -23,11 +23,10 @@ import javax.inject.Inject
 class PlayerActivityViewModel
 @Inject
 constructor(
-    private val application: Application,
+    application: Application,
     private val jellyfinRepository: JellyfinRepository
 ) : ViewModel(), Player.Listener {
-    private var _player = MutableLiveData<SimpleExoPlayer>()
-    var player: LiveData<SimpleExoPlayer> = _player
+    var player: SimpleExoPlayer
 
     private val _navigateBack = MutableLiveData<Boolean>()
     val navigateBack: LiveData<Boolean> = _navigateBack
@@ -38,10 +37,7 @@ constructor(
 
     private val sp = PreferenceManager.getDefaultSharedPreferences(application)
 
-    fun initializePlayer(
-        items: Array<PlayerItem>
-    ) {
-
+    init {
         val renderersFactory =
             DefaultRenderersFactory(application).setExtensionRendererMode(DefaultRenderersFactory.EXTENSION_RENDERER_MODE_ON)
         val trackSelector = DefaultTrackSelector(application)
@@ -51,10 +47,14 @@ constructor(
                 .setPreferredAudioLanguage(sp.getString("audio_language", null))
                 .setPreferredTextLanguage(sp.getString("subtitle_language", null))
         )
-        val player = SimpleExoPlayer.Builder(application, renderersFactory)
+        player = SimpleExoPlayer.Builder(application, renderersFactory)
             .setTrackSelector(trackSelector)
             .build()
+    }
 
+    fun initializePlayer(
+        items: Array<PlayerItem>
+    ) {
         player.addListener(this)
 
         viewModelScope.launch {
@@ -78,14 +78,13 @@ constructor(
             player.setMediaItems(mediaItems, currentWindow, items[0].playbackPosition)
             player.playWhenReady = playWhenReady
             player.prepare()
-            _player.value = player
         }
 
         pollPosition(player)
     }
 
     private fun releasePlayer() {
-        _player.value?.let { player ->
+        player.let { player ->
             runBlocking {
                 try {
                     jellyfinRepository.postPlaybackStop(
@@ -98,14 +97,11 @@ constructor(
             }
         }
 
-        if (player.value != null) {
-            playWhenReady = player.value!!.playWhenReady
-            playbackPosition = player.value!!.currentPosition
-            currentWindow = player.value!!.currentWindowIndex
-            player.value!!.removeListener(this)
-            player.value!!.release()
-            _player.value = null
-        }
+            playWhenReady = player.playWhenReady
+            playbackPosition = player.currentPosition
+            currentWindow = player.currentWindowIndex
+            player.removeListener(this)
+            player.release()
     }
 
     private fun pollPosition(player: SimpleExoPlayer) {

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

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<merge xmlns:android="http://schemas.android.com/apk/res/android"
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
@@ -7,10 +7,11 @@
     tools:context=".PlayerActivity">
 
     <com.google.android.exoplayer2.ui.StyledPlayerView
-        android:id="@+id/video_view"
+        android:id="@+id/player_view"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:background="@color/black"
-        app:show_subtitle_button="true" />
+        app:show_subtitle_button="true"
+        app:show_buffering="always"/>
 
-</merge>
+</FrameLayout>