I had a game which I designed using libgdx.
It was displaying ads before publishing it on Google Play as I tested it by this code:
adView = new AdView(this);
adView.setAdSize(AdSize.BANNER);
adView.setAdUnitId(AD_UNIT_ID);
AdRequest adRequest = new AdRequest.Builder().addTestDevice(TEST_DEVICE).build();
adView.loadAd(adRequest);
Before publishing the game I changed some lines of my code to be like this:
adView = new AdView(this);
adView.setAdSize(AdSize.BANNER);
adView.setAdUnitId(AD_UNIT_ID);
AdRequest.Builder builder = new AdRequest.Builder();
adView.loadAd(builder.build());
but it shows no ads now.
Is there a problem in my code or it may be in my admob or adsense accounts which I have recently made for the first time ?