title: How do I reload ads every 3 clicks instead of every time an ad is closed?
body: <p>I need interstitial ads to reload after 3 clicks, not after every ad close.</p>
  
  <pre><code>retrybutton.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View v) {
          if (mInterstitialAd.isLoaded()) {
              mInterstitialAd.show();
          } else {
              START();
          }
      }
  });
  
  mInterstitialAd.setAdListener(new AdListener() {
      @Override
      public void onAdClosed() {
          // Load the next interstitial.
          mInterstitialAd.loadAd(new AdRequest.Builder().build());
      }
  });
  </code></pre>
  
  <p>Every time I click on the <code>Retry</code> button, an ad shows; that's not what I need. I need it to show after 3 clicks.</p>