player notification

app/src/main/java/com/github/libretube/PlayerFragment.kt

@@ -13,6 +13,7 @@ import android.os.Build
 import android.os.Build.VERSION.SDK_INT
 import android.os.Bundle
 import android.os.Environment
+import android.support.v4.media.session.MediaSessionCompat
 import android.text.Html
 import android.text.TextUtils
 import android.util.Log
@@ -57,10 +58,12 @@ import com.google.android.exoplayer2.MediaItem.fromUri
 import com.google.android.exoplayer2.Player
 import com.google.android.exoplayer2.audio.AudioAttributes
 import com.google.android.exoplayer2.ext.cronet.CronetDataSource
+import com.google.android.exoplayer2.ext.mediasession.MediaSessionConnector
 import com.google.android.exoplayer2.source.DefaultMediaSourceFactory
 import com.google.android.exoplayer2.source.MediaSource
 import com.google.android.exoplayer2.source.MergingMediaSource
 import com.google.android.exoplayer2.source.ProgressiveMediaSource
+import com.google.android.exoplayer2.ui.PlayerNotificationManager
 import com.google.android.exoplayer2.ui.StyledPlayerView
 import com.google.android.exoplayer2.upstream.DataSource
 import com.google.android.exoplayer2.upstream.DefaultDataSource
@@ -69,12 +72,12 @@ import com.google.android.exoplayer2.util.RepeatModeUtil
 import com.google.android.material.button.MaterialButton
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import com.squareup.picasso.Picasso
+import org.chromium.net.CronetEngine
+import retrofit2.HttpException
 import java.io.IOException
 import java.net.URLEncoder
 import java.util.concurrent.Executors
 import kotlin.math.abs
-import org.chromium.net.CronetEngine
-import retrofit2.HttpException
 
 var isFullScreen = false
 
@@ -105,6 +108,10 @@ class PlayerFragment : Fragment() {
 
     private lateinit var relDownloadVideo: LinearLayout
 
+    private lateinit var mediaSession: MediaSessionCompat
+    private lateinit var mediaSessionConnector: MediaSessionConnector
+    private lateinit var playerNotification: PlayerNotificationManager
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         arguments?.let {
@@ -405,32 +412,14 @@ class PlayerFragment : Fragment() {
                         )
                     }
 
-                    val cronetEngine: CronetEngine = CronetHelper.getCronetEngine()
+                    createExoPlayer(view)
-                    val cronetDataSourceFactory: CronetDataSource.Factory =
-                        CronetDataSource.Factory(cronetEngine, Executors.newCachedThreadPool())
 
-                    val dataSourceFactory = DefaultDataSource.Factory(
-                        requireContext(),
-                        cronetDataSourceFactory
-                    )
-
-                    val audioAttributes = AudioAttributes.Builder()
-                        .setUsage(C.USAGE_MEDIA)
-                        .setContentType(C.CONTENT_TYPE_MOVIE)
-                        .build()
-
-                    exoPlayer = ExoPlayer.Builder(view.context)
-                        .setMediaSourceFactory(DefaultMediaSourceFactory(dataSourceFactory))
-                        .setSeekBackIncrementMs(5000)
-                        .setSeekForwardIncrementMs(5000)
-                        .build()
                     exoPlayerView.setShowSubtitleButton(true)
                     exoPlayerView.setShowNextButton(false)
                     exoPlayerView.setShowPreviousButton(false)
                     exoPlayerView.setRepeatToggleModes(RepeatModeUtil.REPEAT_TOGGLE_MODE_ALL)
                     // exoPlayerView.controllerShowTimeoutMs = 1500
                     exoPlayerView.controllerHideOnTouch = true
-                    exoPlayer.setAudioAttributes(audioAttributes, true)
                     exoPlayerView.player = exoPlayer
                     val sharedPreferences =
                         PreferenceManager.getDefaultSharedPreferences(requireContext())
@@ -829,6 +818,47 @@ class PlayerFragment : Fragment() {
         run()
     }
 
+    private fun createExoPlayer(view: View) {
+        val cronetEngine: CronetEngine = CronetHelper.getCronetEngine()
+        val cronetDataSourceFactory: CronetDataSource.Factory =
+            CronetDataSource.Factory(cronetEngine, Executors.newCachedThreadPool())
+
+        val dataSourceFactory = DefaultDataSource.Factory(
+            requireContext(),
+            cronetDataSourceFactory
+        )
+
+        val audioAttributes = AudioAttributes.Builder()
+            .setUsage(C.USAGE_MEDIA)
+            .setContentType(C.CONTENT_TYPE_MOVIE)
+            .build()
+
+        exoPlayer = ExoPlayer.Builder(view.context)
+            .setMediaSourceFactory(DefaultMediaSourceFactory(dataSourceFactory))
+            .setSeekBackIncrementMs(5000)
+            .setSeekForwardIncrementMs(5000)
+            .build()
+
+        exoPlayer.setAudioAttributes(audioAttributes, true)
+
+        setMediaItem(requireContext())
+        initializePlayerNotification(requireContext())
+    }
+
+    private fun setMediaItem(c: Context) {
+        mediaSession = MediaSessionCompat(c, this.javaClass.name)
+        mediaSession.isActive = true
+
+        mediaSessionConnector = MediaSessionConnector(mediaSession)
+        mediaSessionConnector.setPlayer(exoPlayer)
+    }
+
+    private fun initializePlayerNotification(c: Context) {
+        playerNotification = PlayerNotificationManager.Builder(c, 1, "background_mode").build()
+        playerNotification.setPlayer(exoPlayer)
+        playerNotification.setMediaSessionToken(mediaSession.sessionToken)
+    }
+
     private fun isSubscribed(button: MaterialButton, channel_id: String) {
         @SuppressLint("ResourceAsColor")
         fun run() {

app/src/main/java/com/github/libretube/SettingsActivity.kt

@@ -1,6 +1,7 @@
 package com.github.libretube
 
 import android.Manifest
+import android.app.NotificationManager
 import android.content.ContentResolver
 import android.content.Context
 import android.content.DialogInterface
@@ -28,13 +29,14 @@ import androidx.preference.PreferenceFragmentCompat
 import androidx.preference.PreferenceManager
 import com.google.android.material.color.DynamicColors
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
+import org.json.JSONObject
+import org.json.JSONTokener
+import retrofit2.HttpException
 import java.io.IOException
 import java.io.InputStream
 import java.util.zip.ZipEntry
 import java.util.zip.ZipInputStream
-import org.json.JSONObject
+
-import org.json.JSONTokener
-import retrofit2.HttpException
 
 private var isCurrentViewMainSettings = true
 private var requireMainActivityRestart = false
@@ -389,6 +391,9 @@ class SettingsActivity :
                 .unregisterOnSharedPreferenceChangeListener(this)
             if (requireMainActivityRestart) {
                 requireMainActivityRestart = false
+                // kill player notification
+                val nManager = this.getSystemService(NOTIFICATION_SERVICE) as NotificationManager
+                nManager.cancelAll()
                 restartMainActivity(this)
                 finishAffinity()
             } else {

app/src/main/java/com/github/libretube/ThemeChanger.kt

@@ -1,9 +1,11 @@
 package com.github.libretube
 
+import android.app.NotificationManager
 import android.content.ComponentName
 import android.content.Context
 import android.content.Intent
 import android.content.pm.PackageManager
+import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.app.AppCompatDelegate
 import androidx.preference.PreferenceManager
 import java.util.*
@@ -79,6 +81,10 @@ fun changeIcon(context: Context, newLogoActivityAlias: String) {
 
 // Needed due to different MainActivity Aliases because of the app icons
 fun restartMainActivity(context: Context) {
+    // kill player notification
+    val nManager = context.getSystemService(AppCompatActivity.NOTIFICATION_SERVICE) as NotificationManager
+    nManager.cancelAll()
+    // restart to MainActivity
     val pm: PackageManager = context.packageManager
     val intent = pm.getLaunchIntentForPackage(context.packageName)
     intent?.flags = Intent.FLAG_ACTIVITY_CLEAR_TASK