title: how to set app open ad backgroung color in android?
body: <p>My code is here!
  appOpenAd.show(currentActivity);<code>appOpenAd.setFullScreenContentCallback(fullScreenContentCallback); currentActivity.getWindow().getDecorView().setBackgroundColor(Color.BLACK); appOpenAd.show(currentActivity);</code></p>
  <p>The link below in which app open ad have black color when ad is showing.
  <a href="https://play.google.com/store/apps/details?id=com.freescanner.qrcodereader.barcodescanner.barcodereader.socialmobileapps" rel="nofollow noreferrer">https://play.google.com/store/apps/details?id=com.freescanner.qrcodereader.barcodescanner.barcodereader.socialmobileapps</a></p>