Show list of downloads on Android Auto

core/src/main/java/de/danoeh/antennapod/core/service/playback/PlaybackService.java

@@ -35,6 +35,7 @@ import android.view.SurfaceHolder;
 import android.webkit.URLUtil;
 import android.widget.Toast;
 
+import androidx.annotation.DrawableRes;
 import androidx.annotation.NonNull;
 import androidx.annotation.StringRes;
 import androidx.core.app.NotificationCompat;
@@ -366,30 +367,22 @@ public class PlaybackService extends MediaBrowserServiceCompat {
                 .subscribe(queueItems -> mediaSession.setQueue(queueItems), Throwable::printStackTrace);
     }
 
-    private MediaBrowserCompat.MediaItem createBrowsableMediaItemForRoot() {
+    private MediaBrowserCompat.MediaItem createBrowsableMediaItem(
+            @StringRes int title, @DrawableRes int icon, int numEpisodes) {
         Uri uri = new Uri.Builder()
                 .scheme(ContentResolver.SCHEME_ANDROID_RESOURCE)
-                .authority(getResources().getResourcePackageName(R.drawable.ic_playlist_black))
+                .authority(getResources().getResourcePackageName(icon))
-                .appendPath(getResources().getResourceTypeName(R.drawable.ic_playlist_black))
+                .appendPath(getResources().getResourceTypeName(icon))
-                .appendPath(getResources().getResourceEntryName(R.drawable.ic_playlist_black))
+                .appendPath(getResources().getResourceEntryName(icon))
                 .build();
 
-        String subtitle = "";
-        try {
-            int count = taskManager.getQueue().size();
-            subtitle = getResources().getQuantityString(R.plurals.num_episodes, count, count);
-        } catch (InterruptedException e) {
-            e.printStackTrace();
-        }
-
         MediaDescriptionCompat description = new MediaDescriptionCompat.Builder()
                 .setIconUri(uri)
-                .setMediaId(getResources().getString(R.string.queue_label))
+                .setMediaId(getResources().getString(title))
-                .setTitle(getResources().getString(R.string.queue_label))
+                .setTitle(getResources().getString(title))
-                .setSubtitle(subtitle)
+                .setSubtitle(getResources().getQuantityString(R.plurals.num_episodes, numEpisodes, numEpisodes))
                 .build();
-        return new MediaBrowserCompat.MediaItem(description,
+        return new MediaBrowserCompat.MediaItem(description, MediaBrowserCompat.MediaItem.FLAG_BROWSABLE);
-                MediaBrowserCompat.MediaItem.FLAG_BROWSABLE);
     }
 
     private MediaBrowserCompat.MediaItem createBrowsableMediaItemForFeed(Feed feed) {
@@ -421,39 +414,41 @@ public class PlaybackService extends MediaBrowserServiceCompat {
         })
                 .subscribeOn(Schedulers.io())
                 .observeOn(AndroidSchedulers.mainThread())
-                .subscribe(() -> { }, Throwable::printStackTrace);
+                .subscribe(
+                    () -> {
+                    }, e -> {
+                        e.printStackTrace();
+                        result.sendResult(null);
+                    });
     }
 
-    private List<MediaBrowserCompat.MediaItem> loadChildrenSynchronous(@NonNull String parentId) {
+    private List<MediaBrowserCompat.MediaItem> loadChildrenSynchronous(@NonNull String parentId)
+            throws InterruptedException {
         List<MediaBrowserCompat.MediaItem> mediaItems = new ArrayList<>();
         if (parentId.equals(getResources().getString(R.string.app_name))) {
-            // Root List
+            mediaItems.add(createBrowsableMediaItem(R.string.queue_label, R.drawable.ic_playlist_black,
-            try {
+                    taskManager.getQueue().size()));
-                if (!(taskManager.getQueue().isEmpty())) {
+            mediaItems.add(createBrowsableMediaItem(R.string.downloads_label, R.drawable.ic_download_black,
-                    mediaItems.add(createBrowsableMediaItemForRoot());
+                    DBReader.getDownloadedItems().size()));
-                }
-            } catch (InterruptedException e) {
-                e.printStackTrace();
-            }
             List<Feed> feeds = DBReader.getFeedList();
             for (Feed feed : feeds) {
                 mediaItems.add(createBrowsableMediaItemForFeed(feed));
             }
-        } else if (parentId.equals(getResources().getString(R.string.queue_label))) {
+            return mediaItems;
-            // Child List
-            try {
-                for (FeedItem feedItem : taskManager.getQueue()) {
-                    FeedMedia media = feedItem.getMedia();
-                    if (media != null) {
-                        mediaItems.add(media.getMediaItem());
-                    }
-                }
-            } catch (InterruptedException e) {
-                e.printStackTrace();
         }
+
+        List<FeedItem> feedItems;
+        if (parentId.equals(getResources().getString(R.string.queue_label))) {
+            feedItems = taskManager.getQueue();
+        } else if (parentId.equals(getResources().getString(R.string.downloads_label))) {
+            feedItems = DBReader.getDownloadedItems();
         } else if (parentId.startsWith("FeedId:")) {
             long feedId = Long.parseLong(parentId.split(":")[1]);
-            List<FeedItem> feedItems = DBReader.getFeedItemList(DBReader.getFeed(feedId));
+            feedItems = DBReader.getFeedItemList(DBReader.getFeed(feedId));
+        } else {
+            Log.e(TAG, "Parent ID not found: " + parentId);
+            return null;
+        }
         int count = 0;
         for (FeedItem feedItem : feedItems) {
             if (feedItem.getMedia() != null && feedItem.getMedia().getMediaItem() != null) {
@@ -463,7 +458,6 @@ public class PlaybackService extends MediaBrowserServiceCompat {
                 }
             }
         }
-        }
         return mediaItems;
     }
 

core/src/main/res/drawable/ic_download_black.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#000000"
+        android:pathData="M18,15v3H6v-3H4v3c0,1.1 0.9,2 2,2h12c1.1,0 2,-0.9 2,-2v-3H18zM17,11l-1.41,-1.41L13,12.17V4h-2v8.17L8.41,9.59L7,11l5,5L17,11z"/>
+</vector>