Fix the NPE in the AnimationController

Add the null checking in onBindViewHolder

Fixes: 144099781
Test: compilation
Change-Id: Iafb8f758d7d71ce9fa67f4ad94d5a8a417ad674a
diff --git a/src/com/android/settings/widget/VideoPreference.java b/src/com/android/settings/widget/VideoPreference.java
index 006c13a..949ba9b 100644
--- a/src/com/android/settings/widget/VideoPreference.java
+++ b/src/com/android/settings/widget/VideoPreference.java
@@ -123,7 +123,9 @@
             layout.setLayoutParams(new LinearLayout.LayoutParams(
                     LinearLayout.LayoutParams.MATCH_PARENT, mHeight));
         }
-        mAnimationController.attachView(mVideo, mPreviewImage, mPlayButton);
+        if (mAnimationController != null) {
+            mAnimationController.attachView(mVideo, mPreviewImage, mPlayButton);
+        }
     }
 
     @Override