From e684ba65b6bbad65a4472c535b758ebfed57a628 Mon Sep 17 00:00:00 2001
From: Hampton Maxwell <me@hamptonmaxwell.com>
Date: Wed, 20 Jun 2018 15:34:36 -0700
Subject: [PATCH] Fix crash when selectedTextTrack is null or undefined

---
 .../exoplayer/ReactExoplayerViewManager.java         | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/android-exoplayer/src/main/java/com/brentvatne/exoplayer/ReactExoplayerViewManager.java b/android-exoplayer/src/main/java/com/brentvatne/exoplayer/ReactExoplayerViewManager.java
index e204a4e7..7c41db58 100644
--- a/android-exoplayer/src/main/java/com/brentvatne/exoplayer/ReactExoplayerViewManager.java
+++ b/android-exoplayer/src/main/java/com/brentvatne/exoplayer/ReactExoplayerViewManager.java
@@ -126,10 +126,14 @@ public class ReactExoplayerViewManager extends ViewGroupManager<ReactExoplayerVi
     @ReactProp(name = PROP_SELECTED_TEXT_TRACK)
     public void setSelectedTextTrack(final ReactExoplayerView videoView,
                                      @Nullable ReadableMap selectedTextTrack) {
-        String typeString = selectedTextTrack.hasKey(PROP_SELECTED_TEXT_TRACK_TYPE)
-                ? selectedTextTrack.getString(PROP_SELECTED_TEXT_TRACK_TYPE) : null;
-        Dynamic value = selectedTextTrack.hasKey(PROP_SELECTED_TEXT_TRACK_VALUE)
-                ? selectedTextTrack.getDynamic(PROP_SELECTED_TEXT_TRACK_VALUE) : null;
+        String typeString = null;
+        Dynamic value = null;
+        if (selectedTextTrack != null) {
+            typeString = selectedTextTrack.hasKey(PROP_SELECTED_TEXT_TRACK_TYPE)
+                    ? selectedTextTrack.getString(PROP_SELECTED_TEXT_TRACK_TYPE) : null;
+            value = selectedTextTrack.hasKey(PROP_SELECTED_TEXT_TRACK_VALUE)
+                    ? selectedTextTrack.getDynamic(PROP_SELECTED_TEXT_TRACK_VALUE) : null;
+        }
         videoView.setSelectedTextTrack(typeString, value);
     }