title: How to show interstitial Ad before launching new activity after clicking a menu button?
body: <p>I use option menu button to go to second activity. When user click on that menu button interstitial Ad show after launching second activity. 
  But I want to show interstitial Ad before launching second activity and when user click on close button of interstitial Ad, second activity should launch.</p>
  
  <p>I'm using the code below to show interstitial Ad.</p>
  
  <pre><code>case R.id.button_id:
     startActivity(new Intent(this, secondactivity.class ));               
  
                      interstitial = new InterstitialAd(getApplicationContext());
                      interstitial.setAdUnitId(getString(R.string.admob_interstetial_ad));
                      AdRequest adRequest9 = new AdRequest.Builder()
                              .addTestDevice(AdRequest.DEVICE_ID_EMULATOR)
  
  
                              .build();
                      interstitial.loadAd(adRequest9);
                      interstitial.setAdListener(new AdListener() {
                          public void onAdLoaded() {
                              if (interstitial.isLoaded()) {
                                  interstitial.show();
                              }
                          }
                      });
  
  
                      return true;
  </code></pre>