From 41b5c572408307c2b8a485536c9b6e1539a55927 Mon Sep 17 00:00:00 2001
From: Reinhard Prechtl <reinhard.prechtl@codecentric.de>
Date: Tue, 22 Aug 2023 13:09:30 +0200
Subject: [PATCH] Check if children exist before adding

---
 .../tempo/viewmodel/SongListPageViewModel.java            | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/app/src/main/java/com/cappielloantonio/tempo/viewmodel/SongListPageViewModel.java b/app/src/main/java/com/cappielloantonio/tempo/viewmodel/SongListPageViewModel.java
index 6c653abc..3df8e0ab 100644
--- a/app/src/main/java/com/cappielloantonio/tempo/viewmodel/SongListPageViewModel.java
+++ b/app/src/main/java/com/cappielloantonio/tempo/viewmodel/SongListPageViewModel.java
@@ -73,9 +73,11 @@ public class SongListPageViewModel extends AndroidViewModel {
             case Constants.MEDIA_BY_GENRE:
                 int page = (songList.getValue() != null ? songList.getValue().size() : 0) / 100;
                 songRepository.getSongsByGenre(genre.getGenre(), page).observe(owner, children -> {
-                    List<Child> currentMedia = songList.getValue();
-                    currentMedia.addAll(children);
-                    songList.setValue(currentMedia);
+                    if(children != null && !children.isEmpty()) {
+                        List<Child> currentMedia = songList.getValue();
+                        currentMedia.addAll(children);
+                        songList.setValue(currentMedia);
+                    }
                 });
                 break;
             case Constants.MEDIA_BY_ARTIST: