Rewarded ads

Prerequisites

  • Google Mobile Ads SDK 19.7.0 or higher.
  • Follow the Get Started guide to import the Google Mobile Ads SDK and update your Android manifest.

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 ads:

ca-app-pub-3940256099942544/5224354917

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 the Mobile Ads SDK's test ads work, see Test Ads.

Load a rewarded ad object

Rewarded ads are loaded by calling the static load() method on the RewardedAd class and passing in a RewardedAdLoadCallback. This is usually done in the onCreate() method of an Activity. Notice that like other format load callbacks, RewardedAdLoadCallback leverages LoadAdError to provide higher fidelity error details.

Java

import com.google.android.gms.ads.rewarded.RewardedAd;

public class MainActivity extends Activity {
  private RewardedAd mRewardedAd;
  private final String TAG = "MainActivity";

  @Override
  protected void onCreate(Bundle savedInstanceState) {

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

    RewardedAd.load(this, "ca-app-pub-3940256099942544/5224354917",
      adRequest, new RewardedAdLoadCallback() {
        @Override
        public void onAdFailedToLoad(@NonNull LoadAdError loadAdError) {
          // Handle the error.
          Log.d(TAG, loadAdError.getMessage());
          mRewardedAd = null;
        }

        @Override
        public void onAdLoaded(@NonNull RewardedAd rewardedAd) {
          mRewardedAd = rewardedAd;
          Log.d(TAG, "Ad was loaded.");
        }
    });
  }
}

Kotlin

class MainActivity : AppCompatActivity() {

  private var mRewardedAd: RewardedAd? = null
  private final var TAG = 'MainActivity'

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

    var adRequest = AdRequest.Builder().build()

    RewardedAd.load(this,"ca-app-pub-3940256099942544/5224354917", adRequest, object : RewardedAdLoadCallback() {
      override fun onAdFailedToLoad(adError: LoadAdError) {
        Log.d(TAG, adError?.message)
        mRewardedAd = null
      }

      override fun onAdLoaded(rewardedAd: RewardedAd) {
        Log.d(TAG, "Ad was loaded.")
        mRewardedAd = rewardedAd
       }
    })
  }
}

Set the FullScreenContentCallback

The FullScreenContentCallback handles events related to displaying your RewardedAd. Before you show your RewardedAd, make sure to set the callback like so:

Java

mRewardedAd.setFullScreenContentCallback(new FullScreenContentCallback() {
  @Override
  public void onAdShowedFullScreenContent() {
    // Called when ad is shown.
    Log.d(TAG, "Ad was shown.");
  }

  @Override
  public void onAdFailedToShowFullScreenContent(AdError adError) {
    // Called when ad fails to show.
    Log.d(TAG, "Ad failed to show.");
  }

  @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 was dismissed.");
    mRewardedAd = null;
  }
});

Kotlin

mRewardedAd?.fullScreenContentCallback = object: FullScreenContentCallback() {
  override fun onAdShowedFullScreenContent() {
    // Called when ad is shown.
    Log.d(TAG, "Ad was shown.")
  }

  override fun onAdFailedToShowFullScreenContent(adError: AdError?) {
    // Called when ad fails to show.
    Log.d(TAG, "Ad failed to show.")
  }

  override fun 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 was dismissed.")
    mRewardedAd = null
  }
}

Show the ad

When you show a rewarded ad, you will use an OnUserEarnedRewardListener object to handle reward events.

Java

if (mRewardedAd != null) {
  Activity activityContext = MainActivity.this;
  mRewardedAd.show(activityContext, new OnUserEarnedRewardListener() {
    @Override
    public void onUserEarnedReward(@NonNull RewardItem rewardItem) {
      // Handle the reward.
      Log.d(TAG, "The user earned the reward.");
      int rewardAmount = rewardItem.getAmount();
      String rewardType = rewardItem.getType();
    }
  });
} else {
  Log.d(TAG, "The rewarded ad wasn't ready yet.");
}

Kotlin

if (mRewardedAd != null) {
  mRewardedAd?.show(this, OnUserEarnedRewardListener() {
    fun onUserEarnedReward(rewardItem: RewardItem) {
      var rewardAmount = rewardItem.getReward()
      var rewardType = rewardItem.getType()
      Log.d(TAG, "User earned the reward.")
    }
  })
} else {
  Log.d(TAG, "The rewarded ad wasn't ready yet.")
}

FAQ

Is there a timeout for the initialization call?
After 10 seconds, the Google Mobile Ads SDK invokes the OnInitializationCompleteListener even if a mediation network still hasn't completed initialization.
What if some mediation networks aren't ready when I get the initialization callback?

It is a best practice to load an ad inside the callback of the OnInitializationCompleteListener. Even if a mediation network is not ready, the Google Mobile Ads SDK will still ask that network for an ad. So if a mediation network finishes initializing after the timeout, it can still service future ad requests in that session.

You can continue to poll the initialization status of all adapters throughout your app session by calling MobileAds.getInitializationStatus().

How do I find out why a particular mediation network isn't ready?

AdapterStatus.getDescription() describes why an adapter is not ready to service ad requests.

Examples on GitHub