Add Interstitial Ads to an Android App

The Audience Network allows you to monetize your Android apps with Facebook ads. An interstitial ad is a full screen ad that you can show in your app. Typically interstitial ads are shown when there is a transition in your app. For example -- after finishing a level in a game or after loading a story in a news app.

Steps-by-Step

Step 1: Initializing Interstitial Ads in your Activity

Step 2: Showing Interstitial Ads in your Activity

Step 1: Initializing Interstitial Ads in your Activity

Add the following code at the top of your Activity in order to import the Facebook Ads SDK:

import com.facebook.ads.*;

Initialize the InterstitialAd.

private InterstitialAd interstitialAd;

@Override
public void onCreate(Bundle savedInstanceState) {
...
  // Instantiate an InterstitialAd object. 
  // NOTE: the placement ID will eventually identify this as your App, you can ignore it for
  // now, while you are testing and replace it later when you have signed up.
  // While you are using this temporary code you will only get test ads and if you release
  // your code like this to the Google Play your users will not receive ads (you will get a no fill error).
  interstitialAd = new InterstitialAd(this, "YOUR_PLACEMENT_ID");
...  

Step 2: Showing Interstitial Ads

Scenario 1: Create an InterstitialAdListener, load the Ad and show the Ad immediately it is loaded successfully.

public class InterstitialAdActivity extends Activity {

    private final String TAG = InterstitialAdActivity.class.getSimpleName();
    private InterstitialAd interstitialAd;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // Instantiate an InterstitialAd object.
        // NOTE: the placement ID will eventually identify this as your App, you can ignore it for
        // now, while you are testing and replace it later when you have signed up.
        // While you are using this temporary code you will only get test ads and if you release
        // your code like this to the Google Play your users will not receive ads (you will get a no fill error).
        interstitialAd = new InterstitialAd(this, "YOUR_PLACEMENT_ID");
        // Create listeners for the Interstitial Ad
        InterstitialAdListener interstitialAdListener = new InterstitialAdListener() {
            @Override
            public void onInterstitialDisplayed(Ad ad) {
                // Interstitial ad displayed callback
                Log.e(TAG, "Interstitial ad displayed.");
            }

            @Override
            public void onInterstitialDismissed(Ad ad) {
                // Interstitial dismissed callback
                Log.e(TAG, "Interstitial ad dismissed.");
            }

            @Override
            public void onError(Ad ad, AdError adError) {
                // Ad error callback
                Log.e(TAG, "Interstitial ad failed to load: " + adError.getErrorMessage());
            }

            @Override
            public void onAdLoaded(Ad ad) {
                // Interstitial ad is loaded and ready to be displayed
                Log.d(TAG, "Interstitial ad is loaded and ready to be displayed!");
                // Show the ad
                interstitialAd.show();
            }

            @Override
            public void onAdClicked(Ad ad) {
                // Ad clicked callback
                Log.d(TAG, "Interstitial ad clicked!");
            }

            @Override
            public void onLoggingImpression(Ad ad) {
                // Ad impression logged callback
                // Please refer to Monetization Manager or Reporting API for final impression numbers
                Log.d(TAG, "Interstitial ad impression logged!");
            }
        };

        // For auto play video ads, it's recommended to load the ad
        // at least 30 seconds before it is shown
        interstitialAd.loadAd(
                interstitialAd.buildLoadAdConfig()
                        .withAdListener(interstitialAdListener)
                        .build());
    }
}

Scenario 2: Display the ad in a few seconds or minutes after it is successfully loaded. You should check whether the ad has been invalidated before displaying it.

You should follow the idea below, but please do not copy the code into your project since it is just an example:

public class InterstitialAdActivity extends Activity {

    private InterstitialAd  interstitialAd ;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        // Instantiate an InterstitialAd object. 
        // NOTE: the placement ID will eventually identify this as your App, you can ignore it for
        // now, while you are testing and replace it later when you have signed up.
        // While you are using this temporary code you will only get test ads and if you release
        // your code like this to the Google Play your users will not receive ads (you will get a no fill error).
        interstitialAd = new InterstitialAd(this, "YOUR_PLACEMENT_ID");
        InterstitialAdListener interstitialAdListener = new InterstitialAdListener() {
            ...
        };
        // load the ad
        interstitialAd.loadAd(
                interstitialAd.buildLoadAdConfig()
                        .withAdListener(interstitialAdListener)
                        .build());
    }

    private void showAdWithDelay() {
       /**
        * Here is an example for displaying the ad with delay;
        * Please do not copy the Handler into your project
       */
       // Handler handler = new Handler();
       handler.postDelayed(new Runnable() {
           public void run() {
                // Check if interstitialAd has been loaded successfully
               if(interstitialAd == null || !interstitialAd.isAdLoaded()) {
                   return;
               }
                // Check if ad is already expired or invalidated, and do not show ad if that is the case. You will not get paid to show an invalidated ad.
               if(interstitialAd.isAdInvalidated()) {
                   return;
               }
               // Show the ad
                interstitialAd.show(); 
           }
       }, 1000 * 60 * 15); // Show the ad after 15 minutes
    }
}

Finally, add the following code to your Activity's onDestroy() function to release resources the InterstitialAd uses:

@Override
protected void onDestroy() {
    if (interstitialAd != null) {
        interstitialAd.destroy();
    }
    super.onDestroy();
}

Start your app and you should see an Interstitial Ad appear: