โฆษณาคั่นระหว่างหน้า

import com.google.android.gms.ads.admanager.AdManagerInterstitialAd;
import com.google.android.gms.ads.admanager.AdManagerInterstitialAdLoadCallback;

public class MainActivity extends Activity {

  private AdManagerInterstitialAd mAdManagerInterstitialAd;
  private static final String TAG = "MainActivity";

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    AdManagerAdRequest adRequest = new AdManagerAdRequest.Builder().build();

    AdManagerInterstitialAd.load(this,"/21775744923/example/interstitial", adRequest,
        new AdManagerInterstitialAdLoadCallback() {
      @Override
      public void onAdLoaded(@NonNull AdManagerInterstitialAd interstitialAd) {
        // The mAdManagerInterstitialAd reference will be null until
        // an ad is loaded.
        mAdManagerInterstitialAd = interstitialAd;
        Log.i(TAG, "onAdLoaded");
      }

      @Override
      public void onAdFailedToLoad(@NonNull LoadAdError loadAdError) {
        // Handle the error
        Log.d(TAG, loadAdError.toString());
        mAdManagerInterstitialAd = null;
      }
    });
  }
}

import com.google.android.gms.ads.admanager.AdManagerInterstitialAd;
import com.google.android.gms.ads.admanager.AdManagerInterstitialAdLoadCallback;

class MainActivity : AppCompatActivity() {

  private var mAdManagerInterstitialAd: AdManagerInterstitialAd? = null
  private final val TAG = "MainActivity"

    override fun onCreate(savedInstanceState: Bundle?) {
      super.onCreate(savedInstanceState)
      setContentView(R.layout.activity_main)

      val adRequest = AdManagerAdRequest.Builder().build()

      AdManagerInterstitialAd.load(this,"/21775744923/example/interstitial", adRequest, object : AdManagerInterstitialAdLoadCallback() {
        override fun onAdFailedToLoad(adError: LoadAdError) {
          Log.d(TAG, adError?.toString())
          mAdManagerInterstitialAd = null
        }

        override fun onAdLoaded(interstitialAd: AdManagerInterstitialAd) {
          Log.d(TAG, 'Ad was loaded.')
          mAdManagerInterstitialAd = interstitialAd
        }
      })
    }
}

mAdManagerInterstitialAd.setFullScreenContentCallback(new FullScreenContentCallback(){
  @Override
  public void onAdClicked() {
    // Called when a click is recorded for an ad.
    Log.d(TAG, "Ad was clicked.");
  }

  @Override
  public void onAdDismissedFullScreenContent() {
    // Called when ad is dismissed.
    // Set the ad reference to null so you don't show the ad a second time.
    Log.d(TAG, "Ad dismissed fullscreen content.");
    mAdManagerInterstitialAd = null;
  }

  @Override
  public void onAdFailedToShowFullScreenContent(AdError adError) {
    // Called when ad fails to show.
    Log.e(TAG, "Ad failed to show fullscreen content.");
    mAdManagerInterstitialAd = null;
  }

  @Override
  public void onAdImpression() {
    // Called when an impression is recorded for an ad.
    Log.d(TAG, "Ad recorded an impression.");
  }

  @Override
  public void onAdShowedFullScreenContent() {
    // Called when ad is shown.
    Log.d(TAG, "Ad showed fullscreen content.");
  }
});

mAdManagerInterstitialAd?.fullScreenContentCallback = object: FullScreenContentCallback() {
  override fun onAdClicked() {
    // Called when a click is recorded for an ad.
    Log.d(TAG, "Ad was clicked.")
  }

  override fun onAdDismissedFullScreenContent() {
    // Called when ad is dismissed.
    Log.d(TAG, "Ad dismissed fullscreen content.")
    mAdManagerInterstitialAd = null
  }

  override fun onAdFailedToShowFullScreenContent(adError: AdError?) {
    // Called when ad fails to show.
    Log.e(TAG, "Ad failed to show fullscreen content.")
    mAdManagerInterstitialAd = null
  }

  override fun onAdImpression() {
    // Called when an impression is recorded for an ad.
    Log.d(TAG, "Ad recorded an impression.")
  }

  override fun onAdShowedFullScreenContent() {
    // Called when ad is shown.
    Log.d(TAG, "Ad showed fullscreen content.")
  }
}

if (mAdManagerInterstitialAd != null) {
  mAdManagerInterstitialAd.show(MyActivity.this);
} else {
  Log.d("TAG", "The interstitial ad wasn't ready yet.");
}

if (mAdManagerInterstitialAd != null) {
  mAdManagerInterstitialAd?.show(this)
} else {
  Log.d("TAG", "The interstitial ad wasn't ready yet.")
}