Rewarded interstitial ads

AI-generated Key Takeaways

Rewarded interstitial ads offer rewards for automatically appearing ads during natural app transitions, without requiring user opt-in.
Always test your app using test ads to avoid account suspension, utilizing the dedicated test ad unit ID provided for Android rewarded interstitial ads.
To load a rewarded interstitial ad, call the RewardedInterstitialAd static load() method and pass an AdLoadCallback.
The RewardedInterstitialAdEventCallback handles events related to displaying the ad and should be set before showing the ad.
Use the show() method with an OnUserEarnedRewardListener to display a rewarded interstitial ad and handle reward events.

Rewarded interstitial is a type of incentivized ad format that lets you offer rewards for ads that appear automatically during natural app transitions. Unlike rewarded ads, users aren't required to opt in to view a rewarded interstitial.

Prerequisites

Complete the Get started guide.

Always test with test ads

When building and testing your apps, make sure you use test ads rather than live, production ads. Failure to do so can lead to suspension of your account.

The easiest way to load test ads is to use our dedicated test ad unit ID for Android rewarded interstitial ads:

ca-app-pub-3940256099942544/5354046379

It's been specially configured to return test ads for every request, and you're free to use it in your own apps while coding, testing, and debugging. Just make sure you replace it with your own ad unit ID before publishing your app.

For more information about how Google Mobile Ads SDK (beta) test ads work, see Test Ads.

Load an ad

To load an ad, Google Mobile Ads SDK (beta) offers the following:

Load with the single ad loading API.
Load with the ad preloading API, which eliminates the need for manual ad loading and caching.

Load with the single ad loading API

The following example shows you how to load a single ad:

Kotlin

import com.google.android.libraries.ads.mobile.sdk.common.AdLoadCallback
import com.google.android.libraries.ads.mobile.sdk.common.AdRequest
import com.google.android.libraries.ads.mobile.sdk.common.FullScreenContentError
import com.google.android.libraries.ads.mobile.sdk.common.LoadAdError
import com.google.android.libraries.ads.mobile.sdk.rewardedinterstitial.RewardedInterstitialAd
import com.google.android.libraries.ads.mobile.sdk.rewardedinterstitial.RewardedInterstitialAdEventCallback
import com.google.android.libraries.ads.mobile.sdk.MobileAds

class RewardedInterstitialActivity : Activity() {
  private var rewardedInterstitialAd: RewardedInterstitialAd? = null

  override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)

    // Load ads after you initialize Google Mobile Ads SDK (beta).
    RewardedInterstitialAd.load(
      AdRequest.Builder(AD_UNIT_ID).build(),
      object : AdLoadCallback<RewardedInterstitialAd> {
        override fun onAdLoaded(ad: RewardedInterstitialAd) {
          // Rewarded interstitial ad loaded.
          rewardedInterstitialAd = ad
        }

        override fun onAdFailedToLoad(adError: LoadAdError) {
          // Rewarded interstitial ad failed to load.
          rewardedInterstitialAd = null
        }
      },
    )
  }

  companion object {
    // Sample rewarded interstitial ad unit ID.
    const val AD_UNIT_ID = "ca-app-pub-3940256099942544/5354046379"
  }
}

Java

import com.google.android.libraries.ads.mobile.sdk.common.AdLoadCallback;
import com.google.android.libraries.ads.mobile.sdk.common.AdRequest;
import com.google.android.libraries.ads.mobile.sdk.common.FullScreenContentError;
import com.google.android.libraries.ads.mobile.sdk.common.LoadAdError;
import com.google.android.libraries.ads.mobile.sdk.rewardedinterstitial.RewardedInterstitialAd;
import com.google.android.libraries.ads.mobile.sdk.rewardedinterstitial.RewardedInterstitialAdEventCallback;
import com.google.android.libraries.ads.mobile.sdk.MobileAds;

class RewardedActivity extends Activity {
  // Sample rewarded interstitial ad unit ID.
  private static final String AD_UNIT_ID = "ca-app-pub-3940256099942544/5354046379";
  private RewardedInterstitialAd rewardedInterstitialAd;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // Load ads after you initialize Google Mobile Ads SDK (beta).
    RewardedInterstitialAd.load(
        new AdRequest.Builder(AD_UNIT_ID).build(),
        new AdLoadCallback<RewardedInterstitialAd>() {
          @Override
          public void onAdLoaded(@NonNull RewardedInterstitialAd rewardedInterstitialAd) {
            // Rewarded interstitial ad loaded.
            AdLoadCallback.super.onAdLoaded(rewardedInterstitialAd);
            RewardedActivity.this.rewardedInterstitialAd = rewardedInterstitialAd;
          }

          @Override
          public void onAdFailedToLoad(@NonNull LoadAdError adError) {
            // Rewarded interstitial ad failed to load.
            AdLoadCallback.super.onAdFailedToLoad(adError);
            rewardedInterstitialAd = null;
          }
        }
    );
  }
}

Load with the ad preloading API

To start preloading, do the following:

Initialize a preload configuration with an ad request.
Start the preloader for rewarded interstitial ads with your ad unit ID and preload configuration:

Kotlin

private fun startPreloading(adUnitId: String) {
  val adRequest = AdRequest.Builder(adUnitId).build()
  val preloadConfig = PreloadConfiguration(adRequest)
  RewardedInterstitialAdPreloader.start(adUnitId, preloadConfig)
}

Java

private void startPreloading(String adUnitId) {
  AdRequest adRequest = new AdRequest.Builder(adUnitId).build();
  PreloadConfiguration preloadConfig = new PreloadConfiguration(adRequest);
  RewardedInterstitialAdPreloader.start(adUnitId, preloadConfig);
}

When you're ready to show the ad, poll the ad from the preloader:

Kotlin

// Polling returns the next available ad and loads another ad in the background.
val ad = RewardedInterstitialAdPreloader.pollAd(adUnitId)

Java

// Polling returns the next available ad and loads another ad in the background.
final RewardedInterstitialAd ad = RewardedInterstitialAdPreloader.pollAd(adUnitId);

Set the RewardedInterstitialAdEventCallback

The RewardedInterstitialAdEventCallback handles events related to displaying your RewardedInterstitialAd. Before showing the rewarded interstitial ad, make sure to set the callback:

Kotlin

// Listen for ad events.
rewardedInterstitialAd?.adEventCallback =
  object : RewardedInterstitialAdEventCallback {
    override fun onAdShowedFullScreenContent() {
      // Rewarded interstitial ad did show.
    }

    override fun onAdDismissedFullScreenContent() {
      // Rewarded interstitial ad did dismiss.
      rewardedInterstitialAd = null
    }

    override fun onAdFailedToShowFullScreenContent(
      fullScreenContentError: FullScreenContentError
    ) {
      // Rewarded interstitial ad failed to show.
      rewardedInterstitialAd = null
    }

    override fun onAdImpression() {
      // Rewarded interstitial ad did record an impression.
    }

    override fun onAdClicked() {
      // Rewarded interstitial ad did record a click.
    }
  }

Java

// Listen for ad events.
rewardedInterstitialAd.setAdEventCallback(
    new RewardedInterstitialAdEventCallback() {
      @Override
      public void onAdShowedFullScreenContent() {
        // Rewarded interstitial ad did show.
        RewardedInterstitialAdEventCallback.super.onAdShowedFullScreenContent();
      }

      @Override
      public void onAdDismissedFullScreenContent() {
        // Rewarded interstitial ad did dismiss.
        RewardedInterstitialAdEventCallback.super.onAdDismissedFullScreenContent();
        rewardedInterstitialAd = null;
      }

      @Override
      public void onAdFailedToShowFullScreenContent(
          @NonNull FullScreenContentError fullScreenContentError) {
        // Rewarded interstitial ad failed to show.
        RewardedInterstitialAdEventCallback.super.onAdFailedToShowFullScreenContent(
            fullScreenContentError);
        rewardedInterstitialAd = null;
      }

      @Override
      public void onAdImpression() {
        // Rewarded interstitial ad did record an impression.
        RewardedInterstitialAdEventCallback.super.onAdImpression();
      }

      @Override
      public void onAdClicked() {
        // Rewarded interstitial ad did record a click.
        RewardedInterstitialAdEventCallback.super.onAdClicked();
      }
    }
);

Show the ad

To show a rewarded interstitial ad, use the show() method. Use an OnUserEarnedRewardListener object to handle reward events.

Kotlin

// Show the ad.
rewardedInterstitialAd?.show(
  this@RewardedActivity,
  object : OnUserEarnedRewardListener {
    override fun onUserEarnedReward(rewardItem: RewardItem) {
      // User earned the reward.
      val rewardAmount = rewardItem.amount
      val rewardType = rewardItem.type
    }
  },
)

Java

// Show the ad.
rewardedInterstitialAd.show(
    RewardedActivity.this,
    new OnUserEarnedRewardListener() {
      @Override
      public void onUserEarnedReward(@NonNull RewardItem rewardItem) {
        // User earned the reward.
        int rewardAmount = rewardItem.getAmount();
        String rewardType = rewardItem.getType();
    }
});

Example

Download and run the example app that demonstrates the use of the Google Mobile Ads SDK (beta).

Rewarded interstitial ads Stay organized with collections Save and categorize content based on your preferences.

AI-generated Key Takeaways

Prerequisites

Always test with test ads

Load an ad

Load with the single ad loading API

Kotlin

Java

Load with the ad preloading API

Kotlin

Java

Kotlin

Java

Set the RewardedInterstitialAdEventCallback

Kotlin

Java

Show the ad

Kotlin

Java

Example

Rewarded interstitial ads