Mostrar intersticiales en Android

// Android: Kotlin code to show an interstitial ad
package com.example.simpleinterstitial

import android.app.Activity
import android.os.Bundle
import android.util.Log
import com.appnexus.opensdk.*

class MainActivity : Activity(), AdListener {

    private var interstitial: InterstitialAdView? = null

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        // Set up an ad view with our placement ID.
        interstitial = InterstitialAdView(this).apply {
            placementID = "1326299"
            setAdListener(this@MainActivity)
        }
        // Fetch an ad from the server. If this works, `onAdLoaded` will
        // be called, and we can show the ad.
        interstitial?.loadAd()
    }

    override fun onDestroy() {
        interstitial?.activityOnDestroy()
        super.onDestroy()
    }

    override fun onAdLoaded(av: AdView) {
        Log.d("onAdLoaded", "The ad has loaded, now we can show it...")
        (av as? InterstitialAdView)?.show()
    }

    override fun onAdLoaded(nativeAdResponse: NativeAdResponse) {
        // Ignore. This callback is for Native in Banner.
    }

    override fun onAdRequestFailed(av: AdView, rc: ResultCode) {
        Log.d("onAdRequestFailed", "The ad request failed: $rc")
    }

    override fun onAdClicked(av: AdView) {
        Log.d("onAdClicked", "The user clicked your ad.")
    }

    override fun onAdClicked(adView: AdView, clickUrl: String) {
        // Called only if setClickThroughAction(ANClickThroughAction.RETURN_URL) is set.
        // Handle the URL appropriately.
    }

    override fun onAdCollapsed(av: AdView) {
        // Do something here.
    }

    override fun onAdExpanded(av: AdView) {
        // Do something here as well.
    }

    override fun onAdImpression(av: AdView) {
        // Do something here as well.
    }
}

// Android: Java code to show an interstitial ad
package com.example.simpleinterstitial;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import com.appnexus.opensdk.*;

public class MainActivity extends Activity implements AdListener {

    private InterstitialAdView interstitial;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        // Set up an ad view with our placement ID.
        interstitial = new InterstitialAdView(this);
        interstitial.setPlacementID("1326299");
        interstitial.setAdListener(this);
        // Fetch an ad from the server. If this works, `onAdLoaded` will
        // be called, and we can show the ad.
        interstitial.loadAd();
    }

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

    @Override
    public void onAdLoaded(AdView av) {
        Log.d("onAdLoaded", "The ad has loaded, now we can show it...");
        ((InterstitialAdView) av).show();
    }

    @Override
    public void onAdLoaded(NativeAdResponse nativeAdResponse) {
        // Ignore. This callback is for Native in Banner.
    }

    @Override
    public void onAdRequestFailed(AdView av, ResultCode rc) {
        Log.d("onAdRequestFailed", "The ad request failed: " + rc);
    }

    @Override
    public void onAdClicked(AdView av) {
        Log.d("onAdClicked", "The user clicked your ad.");
    }

    @Override
    public void onAdClicked(AdView adView, String clickUrl) {
        // Called only if setClickThroughAction(ANClickThroughAction.RETURN_URL) is set.
        // Handle the URL appropriately.
    }

    @Override
    public void onAdCollapsed(AdView av) {
        // Do something here.
    }

    @Override
    public void onAdExpanded(AdView av) {
        // Do something here as well.
    }

    @Override
    public void onAdImpression(AdView av) {
        // Do something here as well.
    }
}

// Android: Kotlin code to request an interstitial using member ID and inventory code
val interstitial = InterstitialAdView(this)
interstitial.setInventoryCodeAndMemberID(123, "your-inventory-code")
interstitial.setAdListener(this)
interstitial.loadAd()

// Android: Java code to request an interstitial using member ID and inventory code
InterstitialAdView interstitial = new InterstitialAdView(this);
interstitial.setInventoryCodeAndMemberID(123, "your-inventory-code");
interstitial.setAdListener(this);
interstitial.loadAd();

// Android: Kotlin code to show interstitial ads in sizes other than the defaults
val interstitial = InterstitialAdView(this)
interstitial.placementID = "1326299"
interstitial.setAllowedSizes(arrayListOf(AdSize(320, 480), AdSize(768, 1024)))

// Android: Java code to show interstitial ads in sizes other than the defaults
InterstitialAdView interstitial = new InterstitialAdView(this);
interstitial.setPlacementID("1326299");
ArrayList<AdSize> sizes = new ArrayList<>();
sizes.add(new AdSize(320, 480));
sizes.add(new AdSize(768, 1024));
interstitial.setAllowedSizes(sizes);

// Show the close button after 5 seconds instead of the default 10.
interstitial.setCloseButtonDelay(5000)

// Show the close button after 5 seconds instead of the default 10.
interstitial.setCloseButtonDelay(5000);

// Show an interstitial ad, wait for 10 seconds, then auto-close it.
interstitial.showWithAutoDismissDelay(10)

// Show an interstitial ad, wait for 10 seconds, then auto-close it.
interstitial.showWithAutoDismissDelay(10);

// Android: Kotlin code to receive interstitial video completion callbacks
val interstitial = InterstitialAdView(this) // Create the interstitial ad view
interstitial.placementID = "1326299" // Set placement ID

interstitial.setVideoEventListener { adView, state -> // Register the video completion listener
    when (state) {
        VideoCompletionState.COMPLETED -> {
            // The video played to its natural end
        }
        VideoCompletionState.SKIPPED -> {
            // The user skipped the video before it ended
        }
        VideoCompletionState.ERROR -> {
            // Playback ended because of an error or timeout
        }
    }
}

interstitial.loadAd() // Load the ad

// Android: Java code to receive interstitial video completion callbacks
InterstitialAdView interstitial = new InterstitialAdView(this); // Create the interstitial ad view
interstitial.setPlacementID("1326299"); // Set placement ID

interstitial.setVideoEventListener(new VideoEventListener() { // Register the video completion listener
    @Override
    public void onAdCompleted(InterstitialAdView adView, VideoCompletionState state) {
        switch (state) {
            case COMPLETED:
                // The video played to its natural end
                break;
            case SKIPPED:
                // The user skipped the video before it ended
                break;
            case ERROR:
                // Playback ended because of an error or timeout
                break;
        }
    }
});

interstitial.loadAd(); // Load the ad