is it possible to force interstitial Ads orientation to be portrait only ?
this is my code:
final PublisherInterstitialAd interstitialAd = new PublisherInterstitialAd(context);
interstitialAd
.setAdUnitId(adUnitId);
PublisherAdRequest adRequest = new PublisherAdRequest.Builder().build();
interstitialAd.loadAd(adRequest);
No, and you would not want to.
The ads should be displayed in whatever orientation the user has the device. Forcing it to do otherwise provides a poor experience for the user and excessive and convoluted coding for you.