show OverallDuration in Playlist

earlier only overall amount of videos was shown. Now overall duration is shown there too - as formatted by existing Localization.concatenateStrings() and Localization.getDurationString().

show all videos OverallDuration in local Playlist too

refactor to make implementation in LocalPlaylistFragment and PlaylistFragment more obviously similar

unfortunately could not refactor upto BaseLocalListFragment

revert the changes for online Playlists

because they are paginated and may be infinite i.e. correct count may come only from the service->extractor chain which unfortunately does not give overall duration yet

next try to improve user-experience with online Playlist

just show that duration is longer (">") than the calculated value in case there is more page(s)

even more improve user-experience for online Playlist

by adding the duration of next items as soon as they are made visible

make showing of playlists duration configurable, disabled by default

adjusted duration to be handled as long because it comes as long from extractor

no idea why I handled it as int earlier

Revert "make showing of playlists duration configurable, disabled by default", refactor

This reverts commit bc1ba17a20d3dd1763210f81d7ca67c5f1734a3d.

Fix rebase

Apply review

Rename video -> stream

Remove unused settings keys

app/src/main/java/org/schabi/newpipe/fragments/list/playlist/PlaylistFragment.java

@@ -89,6 +89,9 @@ public class PlaylistFragment extends BaseListInfoFragment<StreamInfoItem, Playl
 
     private MenuItem playlistBookmarkButton;
 
+    private long streamCount;
+    private long playlistOverallDurationSeconds;
+
     public static PlaylistFragment getInstance(final int serviceId, final String url,
                                                final String name) {
         final PlaylistFragment instance = new PlaylistFragment();
@@ -277,6 +280,12 @@ public void showLoading() {
         animate(headerBinding.uploaderLayout, false, 200);
     }
 
+    @Override
+    public void handleNextItems(final ListExtractor.InfoItemsPage result) {
+        super.handleNextItems(result);
+        setStreamCountAndOverallDuration(result.getItems(), !result.hasNextPage());
+    }
+
     @Override
     public void handleResult(@NonNull final PlaylistInfo result) {
         super.handleResult(result);
@@ -322,8 +331,8 @@ public void handleResult(@NonNull final PlaylistInfo result) {
                     .into(headerBinding.uploaderAvatarView);
         }
 
-        headerBinding.playlistStreamCount.setText(Localization
-                .localizeStreamCount(getContext(), result.getStreamCount()));
+        streamCount = result.getStreamCount();
+        setStreamCountAndOverallDuration(result.getRelatedItems(), !result.hasNextPage());
 
         final Description description = result.getDescription();
         if (description != null && description != Description.EMPTY_DESCRIPTION
@@ -486,4 +495,20 @@ private void updateBookmarkButtons() {
         playlistBookmarkButton.setIcon(drawable);
         playlistBookmarkButton.setTitle(titleRes);
     }
+
+    private void setStreamCountAndOverallDuration(final List<StreamInfoItem> list,
+                                                  final boolean isDurationComplete) {
+        if (activity != null && headerBinding != null) {
+            playlistOverallDurationSeconds += list.stream()
+                    .mapToLong(x -> x.getDuration())
+                    .sum();
+            headerBinding.playlistStreamCount.setText(
+                Localization.concatenateStrings(
+                    Localization.localizeStreamCount(activity, streamCount),
+                    Localization.getDurationString(playlistOverallDurationSeconds,
+                            isDurationComplete))
+            );
+        }
+    }
+
 }

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

@@ -502,7 +502,7 @@ public void removeWatchedStreams(final boolean removePartiallyWatched) {
                     }
 
                     final long videoCount = itemListAdapter.getItemsList().size();
-                    setVideoCount(videoCount);
+                    setStreamCountAndOverallDuration(itemListAdapter.getItemsList());
                     if (videoCount == 0) {
                         showEmptyState();
                     }
@@ -532,7 +532,7 @@ public void handleResult(@NonNull final List<PlaylistStreamEntry> result) {
             itemsList.getLayoutManager().onRestoreInstanceState(itemsListState);
             itemsListState = null;
         }
-        setVideoCount(itemListAdapter.getItemsList().size());
+        setStreamCountAndOverallDuration(itemListAdapter.getItemsList());
 
         PlayButtonHelper.initPlaylistControlClickListener(activity, playlistControlBinding, this);
 
@@ -665,7 +665,7 @@ private void removeDuplicatesInPlaylist() {
                 .subscribe(itemsToKeep -> {
                     itemListAdapter.clearStreamItemList();
                     itemListAdapter.addItems(itemsToKeep);
-                    setVideoCount(itemListAdapter.getItemsList().size());
+                    setStreamCountAndOverallDuration(itemListAdapter.getItemsList());
                     saveChanges();
 
                     hideLoading();
@@ -684,7 +684,7 @@ private void deleteItem(final PlaylistStreamEntry item) {
             updateThumbnailUrl();
         }
 
-        setVideoCount(itemListAdapter.getItemsList().size());
+        setStreamCountAndOverallDuration(itemListAdapter.getItemsList());
         saveChanges();
     }
 
@@ -855,10 +855,20 @@ private void setInitialData(final long pid, final String title) {
         this.name = !TextUtils.isEmpty(title) ? title : "";
     }
 
-    private void setVideoCount(final long count) {
+    private void setStreamCountAndOverallDuration(final ArrayList<LocalItem> itemsList) {
         if (activity != null && headerBinding != null) {
-            headerBinding.playlistStreamCount.setText(Localization
-                    .localizeStreamCount(activity, count));
+            final long streamCount = itemsList.size();
+            final long playlistOverallDurationSeconds = itemsList.stream()
+                    .filter(PlaylistStreamEntry.class::isInstance)
+                    .map(PlaylistStreamEntry.class::cast)
+                    .map(PlaylistStreamEntry::getStreamEntity)
+                    .mapToLong(StreamEntity::getDuration)
+                    .sum();
+            headerBinding.playlistStreamCount.setText(
+                    Localization.concatenateStrings(
+                            Localization.localizeStreamCount(activity, streamCount),
+                            Localization.getDurationString(playlistOverallDurationSeconds))
+            );
         }
     }
 

app/src/main/java/org/schabi/newpipe/util/Localization.java

@@ -238,7 +238,25 @@ public static String likeCount(@NonNull final Context context, final int likeCou
         }
     }
 
+    /**
+     * Get a readable text for a duration in the format {@code days:hours:minutes:seconds}.
+     * Prepended zeros are removed.
+     * @param duration the duration in seconds
+     * @return a formatted duration String or {@code 0:00} if the duration is zero.
+     */
     public static String getDurationString(final long duration) {
+        return getDurationString(duration, true);
+    }
+
+    /**
+     * Get a readable text for a duration in the format {@code days:hours:minutes:seconds+}.
+     * Prepended zeros are removed. If the given duration is incomplete, a plus is appended to the
+     * duration string.
+     * @param duration the duration in seconds
+     * @param isDurationComplete whether the given duration is complete or whether info is missing
+     * @return a formatted duration String or {@code 0:00} if the duration is zero.
+     */
+    public static String getDurationString(final long duration, final boolean isDurationComplete) {
         final String output;
 
         final long days = duration / (24 * 60 * 60L); /* greater than a day */
@@ -256,7 +274,8 @@ public static String getDurationString(final long duration) {
         } else {
             output = String.format(Locale.US, "%d:%02d", minutes, seconds);
         }
-        return output;
+        final String durationPostfix = isDurationComplete ? "" : "+";
+        return output + durationPostfix;
     }
 
     /**