ETPAND-10000: Ad audio is heard while the TrueX choice card is displa…

…yed (#67)

* Pause playback when displaying an interactive ad to prevent sync issues.

android/src/main/java/com/brentvatne/exoplayer/ReactExoplayerView.java

@@ -429,7 +429,6 @@ public void displayLinearAds() {
 
         WritableMap payload = Arguments.createMap();
         eventEmitter.adEvent("ENDED_TRUEX", payload);
-
         adsLoader.skipAd();
         startPlayback();      
     }
@@ -453,6 +452,7 @@ private void displayInteractiveAd(String vastUrl) {
         // Pause the stream and display a true[X] engagement
         Long position = player.getCurrentPosition();
         if (position > 0) resumePosition = position;
+        pausePlayback();
 
         // Start the true[X] engagement
         ViewGroup viewGroup = (ViewGroup) truexOverlayFrameLayout;