title: android get adMob banner height when appears
body: <p>I am adding an adMob banner to my app successfully. When banner appears I need to get its height in order to resize all layout elements. I am using the event onReceivedAd, that is properly fired. However, alturaBanner is = 0. Then, how to get its height? thank you.</p>
  
  <pre><code>   /** Called when an ad is received. */
      @Override
      public void onReceiveAd(Ad ad) 
      {
          adView.setVisibility(View.VISIBLE);
  
          int alturaBanner = adView.getHeight();
  
          RelativeLayout.LayoutParams params1 = (android.widget.RelativeLayout.LayoutParams) browse2
          .getLayoutParams();
  
          params1.setMargins(0, alturaBanner, 0, 0);
  
        Log.d(LOG_TAG, "onReceiveAd");
        Toast.makeText(this, "onReceiveAd", Toast.LENGTH_SHORT).show();
      }
  </code></pre>