Fixes #9518

- Crash fix on clicking on add to playlist.
- Added toast when clicked on share button for better UI.

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

@@ -13,6 +13,7 @@ import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.Toast;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
@@ -233,21 +234,29 @@ public class PlaylistFragment extends BaseListInfoFragment<StreamInfoItem, Playl
                 if (currentInfo != null) {
                     ShareUtils.shareText(requireContext(), name, url,
                             currentInfo.getThumbnailUrl());
+                } else {
+                    Toast.makeText(getContext(), getString(R.string.playlist_loading_message),
+                            Toast.LENGTH_SHORT).show();
                 }
                 break;
             case R.id.menu_item_bookmark:
                 onBookmarkClicked();
                 break;
             case R.id.menu_item_append_playlist:
-                disposables.add(PlaylistDialog.createCorrespondingDialog(
-                        getContext(),
-                        getPlayQueue()
-                                .getStreams()
-                                .stream()
-                                .map(StreamEntity::new)
-                                .collect(Collectors.toList()),
-                        dialog -> dialog.show(getFM(), TAG)
-                ));
+                if (currentInfo != null) {
+                    disposables.add(PlaylistDialog.createCorrespondingDialog(
+                            getContext(),
+                            getPlayQueue()
+                                    .getStreams()
+                                    .stream()
+                                    .map(StreamEntity::new)
+                                    .collect(Collectors.toList()),
+                            dialog -> dialog.show(getFM(), TAG)
+                    ));
+                } else {
+                    Toast.makeText(getContext(), getString(R.string.playlist_loading_message),
+                            Toast.LENGTH_SHORT).show();
+                }
                 break;
             default:
                 return super.onOptionsItemSelected(item);

app/src/main/res/values/strings.xml

@@ -241,6 +241,7 @@
     <string name="restore_defaults">Restore defaults</string>
     <string name="restore_defaults_confirmation">Do you want to restore defaults?</string>
     <string name="permission_display_over_apps">Give permission to display over other apps</string>
+    <string name="playlist_loading_message">Playlist loading…</string>
     <!-- error activity -->
     <string name="error_report_notification_title">NewPipe encountered an error, tap to report</string>
     <string name="error_report_notification_toast">An error occurred, see the notification</string>