From 425bd2d801952e9aefd01002bf16555537fbe955 Mon Sep 17 00:00:00 2001
From: Yoni Obadia <yobadia@hexaglobe.com>
Date: Wed, 26 Aug 2020 14:31:44 +0200
Subject: [PATCH] improvement: get already existing sortingTrackGroups if
 exists

---
 .../com/google/android/exoplayer2/ui/TrackSelectionView.java    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/library/ui/src/main/java/com/google/android/exoplayer2/ui/TrackSelectionView.java b/library/ui/src/main/java/com/google/android/exoplayer2/ui/TrackSelectionView.java
index 7023ea1cc1..210d394837 100644
--- a/library/ui/src/main/java/com/google/android/exoplayer2/ui/TrackSelectionView.java
+++ b/library/ui/src/main/java/com/google/android/exoplayer2/ui/TrackSelectionView.java
@@ -258,7 +258,7 @@ public class TrackSelectionView extends LinearLayout {
     defaultView.setEnabled(true);
 
     trackGroups = mappedTrackInfo.getTrackGroups(rendererIndex);
-    sortedTrackGroups = initSortedTrackGroups(trackGroups);
+    sortedTrackGroups = sortedTrackGroups != null ? sortedTrackGroups : initSortedTrackGroups(trackGroups);
 
     // Add per-track views.
     trackViews = new CheckedTextView[sortedTrackGroups.length][];