Add support for Android Auto

app/src/main/AndroidManifest.xml

@@ -64,6 +64,9 @@
             <intent-filter>
                 <action android:name="android.intent.action.MEDIA_BUTTON" />
             </intent-filter>
+            <intent-filter>
+                <action android:name="android.media.browse.MediaBrowserService"/>
+            </intent-filter>
         </service>
 
         <activity
@@ -423,5 +426,10 @@
         <meta-data
             android:name="com.samsung.android.multidisplay.keep_process_alive"
             android:value="true" />
+        <!-- Android Auto -->
+        <meta-data android:name="com.google.android.gms.car.application"
+            android:resource="@xml/automotive_app_desc" />
+        <meta-data android:name="com.google.android.gms.car.notification.SmallIcon"
+            android:resource="@mipmap/ic_launcher" />
     </application>
 </manifest>

app/src/main/java/org/schabi/newpipe/database/LocalItem.kt

@@ -0,0 +1,18 @@
+package org.schabi.newpipe.database
+
+/**
+ * Represents a generic item that can be stored locally. This can be a playlist, a stream, etc.
+ */
+interface LocalItem {
+    /**
+     * The type of local item. Can be null if the type is unknown or not applicable.
+     */
+    val localItemType: LocalItemType?
+
+    enum class LocalItemType {
+        PLAYLIST_LOCAL_ITEM,
+        PLAYLIST_REMOTE_ITEM,
+        PLAYLIST_STREAM_ITEM,
+        STATISTIC_STREAM_ITEM,
+    }
+}

app/src/main/java/org/schabi/newpipe/database/history/model/StreamHistoryEntry.kt

@@ -3,6 +3,8 @@ package org.schabi.newpipe.database.history.model
 import androidx.room.ColumnInfo
 import androidx.room.Embedded
 import org.schabi.newpipe.database.stream.model.StreamEntity
+import org.schabi.newpipe.extractor.stream.StreamInfoItem
+import org.schabi.newpipe.util.image.ImageStrategy
 import java.time.OffsetDateTime
 
 data class StreamHistoryEntry(
@@ -27,4 +29,17 @@ data class StreamHistoryEntry(
         return this.streamEntity.uid == other.streamEntity.uid && streamId == other.streamId &&
             accessDate.isEqual(other.accessDate)
     }
+
+    fun toStreamInfoItem(): StreamInfoItem =
+        StreamInfoItem(
+            streamEntity.serviceId,
+            streamEntity.url,
+            streamEntity.title,
+            streamEntity.streamType,
+        ).apply {
+            duration = streamEntity.duration
+            uploaderName = streamEntity.uploader
+            uploaderUrl = streamEntity.uploaderUrl
+            thumbnails = ImageStrategy.dbUrlToImageList(streamEntity.thumbnailUrl)
+        }
 }

app/src/main/java/org/schabi/newpipe/database/playlist/PlaylistLocalItem.kt

@@ -0,0 +1,28 @@
+package org.schabi.newpipe.database.playlist
+
+import org.schabi.newpipe.database.LocalItem
+
+/**
+ * Represents a playlist item stored locally.
+ */
+interface PlaylistLocalItem : LocalItem {
+    /**
+     * The name used for ordering this item within the playlist. Can be null.
+     */
+    val orderingName: String?
+
+    /**
+     * The index used to display this item within the playlist.
+     */
+    var displayIndex: Long
+
+    /**
+     * The unique identifier for this playlist item.
+     */
+    val uid: Long
+
+    /**
+     * The URL of the thumbnail image for this playlist item. Can be null.
+     */
+    val thumbnailUrl: String?
+}

app/src/main/java/org/schabi/newpipe/database/playlist/PlaylistMetadataEntry.java

@@ -71,4 +71,9 @@ public long getUid() {
     public void setDisplayIndex(final long displayIndex) {
         this.displayIndex = displayIndex;
     }
+
+    @Override
+    public String getThumbnailUrl() {
+        return thumbnailUrl;
+    }
 }

app/src/main/java/org/schabi/newpipe/database/playlist/PlaylistStreamEntry.kt

@@ -22,19 +22,20 @@ data class PlaylistStreamEntry(
     @ColumnInfo(name = PlaylistStreamEntity.JOIN_INDEX)
     val joinIndex: Int
 ) : LocalItem {
-
     @Throws(IllegalArgumentException::class)
-    fun toStreamInfoItem(): StreamInfoItem {
-        val item = StreamInfoItem(streamEntity.serviceId, streamEntity.url, streamEntity.title, streamEntity.streamType)
-        item.duration = streamEntity.duration
-        item.uploaderName = streamEntity.uploader
-        item.uploaderUrl = streamEntity.uploaderUrl
-        item.thumbnails = ImageStrategy.dbUrlToImageList(streamEntity.thumbnailUrl)
-
-        return item
-    }
-
-    override fun getLocalItemType(): LocalItem.LocalItemType {
-        return LocalItem.LocalItemType.PLAYLIST_STREAM_ITEM
-    }
+    fun toStreamInfoItem() =
+        StreamInfoItem(
+            streamEntity.serviceId,
+            streamEntity.url,
+            streamEntity.title,
+            streamEntity.streamType,
+        ).apply {
+            duration = streamEntity.duration
+            uploaderName = streamEntity.uploader
+            uploaderUrl = streamEntity.uploaderUrl
+            thumbnails = ImageStrategy.dbUrlToImageList(streamEntity.thumbnailUrl)
+        }
+
+    override val localItemType: LocalItem.LocalItemType
+        get() = LocalItem.LocalItemType.PLAYLIST_STREAM_ITEM
 }

app/src/main/java/org/schabi/newpipe/database/stream/StreamStatisticsEntry.kt

@@ -26,19 +26,21 @@ class StreamStatisticsEntry(
     @ColumnInfo(name = STREAM_WATCH_COUNT)
     val watchCount: Long
 ) : LocalItem {
-    fun toStreamInfoItem(): StreamInfoItem {
-        val item = StreamInfoItem(streamEntity.serviceId, streamEntity.url, streamEntity.title, streamEntity.streamType)
-        item.duration = streamEntity.duration
-        item.uploaderName = streamEntity.uploader
-        item.uploaderUrl = streamEntity.uploaderUrl
-        item.thumbnails = ImageStrategy.dbUrlToImageList(streamEntity.thumbnailUrl)
-
-        return item
-    }
-
-    override fun getLocalItemType(): LocalItem.LocalItemType {
-        return LocalItem.LocalItemType.STATISTIC_STREAM_ITEM
-    }
+    fun toStreamInfoItem() =
+        StreamInfoItem(
+            streamEntity.serviceId,
+            streamEntity.url,
+            streamEntity.title,
+            streamEntity.streamType,
+        ).apply {
+            duration = streamEntity.duration
+            uploaderName = streamEntity.uploader
+            uploaderUrl = streamEntity.uploaderUrl
+            thumbnails = ImageStrategy.dbUrlToImageList(streamEntity.thumbnailUrl)
+        }
+
+    override val localItemType: LocalItem.LocalItemType
+        get() = LocalItem.LocalItemType.STATISTIC_STREAM_ITEM
 
     companion object {
         const val STREAM_LATEST_DATE = "latestAccess"

app/src/main/java/org/schabi/newpipe/local/playlist/RemotePlaylistManager.java

@@ -26,6 +26,10 @@ public Flowable<List<PlaylistRemoteEntity>> getPlaylists() {
         return playlistRemoteTable.getPlaylists().subscribeOn(Schedulers.io());
     }
 
+    public Flowable<List<PlaylistRemoteEntity>> getPlaylist(final long playlistId) {
+        return playlistRemoteTable.getPlaylist(playlistId).subscribeOn(Schedulers.io());
+    }
+
     public Flowable<List<PlaylistRemoteEntity>> getPlaylist(final PlaylistInfo info) {
         return playlistRemoteTable.getPlaylist(info.getServiceId(), info.getUrl())
                 .subscribeOn(Schedulers.io());

app/src/main/java/org/schabi/newpipe/player/Player.java

@@ -45,6 +45,7 @@
 import static org.schabi.newpipe.util.ListHelper.getPopupResolutionIndex;
 import static org.schabi.newpipe.util.ListHelper.getResolutionIndex;
 import static org.schabi.newpipe.util.Localization.assureCorrectAppLanguage;
+import static java.util.Objects.requireNonNull;
 import static java.util.concurrent.TimeUnit.MILLISECONDS;
 
 import android.content.BroadcastReceiver;
@@ -302,7 +303,7 @@ public Player(@NonNull final PlayerService service) {
         // notification ui in the UIs list, since the notification depends on the media session in
         // PlayerUi#initPlayer(), and UIs.call() guarantees UI order is preserved.
         UIs = new PlayerUiList(
-                new MediaSessionPlayerUi(this),
+                new MediaSessionPlayerUi(this, service.getSessionConnector()),
                 new NotificationPlayerUi(this)
         );
     }
@@ -415,6 +416,10 @@ public void handleIntent(@NonNull final Intent intent) {
                     == com.google.android.exoplayer2.Player.STATE_IDLE) {
                 simpleExoPlayer.prepare();
             }
+            if (playQueue.getIndex() != newQueue.getIndex()) {
+                simpleExoPlayer.seekTo(newQueue.getIndex(),
+                        requireNonNull(newQueue.getItem()).getRecoveryPosition());
+            }
             simpleExoPlayer.setPlayWhenReady(playWhenReady);
 
         } else if (intent.getBooleanExtra(RESUME_PLAYBACK, false)