The adTypes parameter in the code is responsible for the ad formats you are going to implement into your app. 

Appodeal supports all major mobile ad formats:

  • Interstitial (Appodeal.INTERSTITIAL): full-screen ads, that contain a static image or a skippable video.
  • Rewarded video (Appodeal.REWARDED_VIDEO): non-skippable video ads that users may choose to watch to get a reward.
  • Non-skippable video (Appodeal.NON_SKIPPABLE_VIDEO): video ads that must be watched until the end.
  • Native ads (Appodeal.NATIVE): ads that can match the structure and the style of an app and naturally continue the user experience.
  • Banner (Appodeal.BANNER): rectangular ads that occupy a spot within an app's layout
  • MREC (Appodeal.MREC): medium-rectangule ads (300x250px) that appear within in-app content. It’s a deprecated ad format and it is recommended to use native ads instead.

Please note:

Ad types can be combined using "|" operator. For example, Appodeal.INTERSTITIAL | Appodeal.REWARDED_VIDEO.

Appodeal.NON_SKIPPABLE_VIDEO - the alias of Appodeal.REWARDED_VIDEO. Both of them shouldn't be used together.

If you are not sure, which ad formats would suit you the best, check out our FAQ.

Interstitial

1. Display interstitial

To display interstitial, you need to call the following code in the activity:

Appodeal.show(this, Appodeal.INTERSTITIAL);

SDK can't show ads without network connection!

Appodeal.show() returns a boolean value indicating whether the show call was passed to the appropriate SDK. 

2. Check if interstitial is loaded

Appodeal.isLoaded(Appodeal.INTERSTITIAL);

3. Use interstitial callbacks

Appodeal.setInterstitialCallbacks(new InterstitialCallbacks() {
  @Override
  public void onInterstitialLoaded(boolean isPrecache) {
    // Called when interstitial is loaded
  }
  @Override
  public void onInterstitialFailedToLoad() {
    // Called when interstitial failed to load
  }
  @Override
  public void onInterstitialShown() {
    // Called when interstitial is shown
  }
  @Override
  public void onInterstitialShowFailed() {
    // Called when interstitial show failed 
  }
  @Override
  public void onInterstitialClicked() {
    // Called when interstitial is clicked
  }
  @Override
  public void onInterstitialClosed() {
    // Called when interstitial is closed
  }
  @Override
  public void onInterstitialExpired()  {
    // Called when interstitial is expired
  }
});

All callbacks are called on the main thread.

4. Cache ad manually

To disable automatic caching for interstitials, use the code below before the SDK initialization:

Appodeal.setAutoCache(Appodeal.INTERSTITIAL, false);

To cache interstitial use:

Appodeal.cache(this, Appodeal.INTERSTITIAL);
Read more on manual caching in our FAQ.

Rewarded video

1. Display rewarded video

To display rewarded video, call the following code in the activity:

Appodeal.show(this, Appodeal.REWARDED_VIDEO);

SDK can't show ads without network connection!

Appodeal.show() returns a boolean value indicating whether the show call was passed to the appropriate SDK. 

2. Check if rewarded video is loaded

Appodeal.isLoaded(Appodeal.REWARDED_VIDEO);

3. Use rewarded video callbacks

Appodeal.setRewardedVideoCallbacks(new RewardedVideoCallbacks() {
  @Override
  public void onRewardedVideoLoaded(boolean isPrecache) {
    // Called when rewarded video is loaded
  }
  @Override
  public void onRewardedVideoFailedToLoad() {
    // Called when rewarded video failed to load
  }
  @Override
  public void onRewardedVideoShown() {
    // Called when rewarded video is shown
  }
  @Override
  public void onRewardedVideoShowFailed() {
    // Called when rewarded video show failed
  }
  @Override
  public void onRewardedVideoClicked() {
    // Called when rewarded video is clicked
  }
  @Override
  public void onRewardedVideoFinished(double amount, String name) {
    // Called when rewarded video is viewed until the end
  }
  @Override
  public void onRewardedVideoClosed(boolean finished) {
    // Called when rewarded video is closed
  }
  @Override
  public void onRewardedVideoExpired() {
    // Called when rewarded video is expired
  }
});

All callbacks are called on the main thread.

4. Cache rewarded video manually

To disable automatic caching for rewarded videos, use the code below before the SDK initialization:

Appodeal.setAutoCache(Appodeal.REWARDED_VIDEO, false);
To cache rewarded video, use:
Appodeal.cache(this, Appodeal.REWARDED_VIDEO);
Read more on manual caching in our FAQ.

5. Advanced

Server-to-server (S2S) rewarded video callbacks

To secure you apps economy, we offer S2S reward callbaks. To validate each reward, you need to setup a callback URL on your server that will receive the reward information. Appodeal will pass the user data to your callback URL that you will need to validate and adjust the user balance accordingly.

1. Create the reward callback URL on your server that will receive the reward information.

2. Fill the created URL and the encryption key in the app settings in your dashboard.

3. The reward callback will be sent to your URL using GET request with two parameters:

{http://example.com/reward}?data1={data1}&data2={data2}
4. Your URL should decrypt the data and validate it.

5. Check impression_id for uniqueness and store it in your system to prevent the duplicate of transactions.

To set user ID, use the Appodeal.getUserSettings(this).setUserId("User#123") method before the SDK initialization.

We offer sample scripts in Go, PHP, Ruby, Java, Node.js, Python 3 and C# to decrypt the data. If you need samples in other languages, please contact our support team and we will provide it to you.

Sample in PHP: reward.php.

Sample in Ruby: reward.rb.

Sample in Java: reward.java.

Sample in Node.js: reward.js. 

Sample in Python 3: reward.py.

Sample in C#: reward.cs.

Sample in Go: reward.go.

Get reward data for placement

To get placement reward data before video is shown, use:

Appodeal.getRewardParameters(placementName);
This method returns Pair with the reward amount and the currency.

All callbacks are called on the main thread.

Non-skippable video

1. Display non-skippable video

To display non-skippable videos, you need to call the following code in the activity:

Appodeal.show(this, Appodeal.NON_SKIPPABLE_VIDEO);

SDK can't show ads without network connection!

Appodeal.show() returns a boolean value indicating whether the show call was passed to the appropriate SDK. 

2. Check if non-skippable video is loaded

Appodeal.isLoaded(Appodeal.NON_SKIPPABLE_VIDEO);

3. Use non-skippable video callbacks

Appodeal.setNonSkippableVideoCallbacks(new NonSkippableVideoCallbacks() {
  @Override
  public void onNonSkippableVideoLoaded(boolean isPrecache) {
    // Called when non-skippable video is loaded
  }
  @Override
  public void onNonSkippableVideoFailedToLoad() {
    // Called when non-skippable video failed to load
  }
  @Override
  public void onNonSkippableVideoShown() {
    // Called when non-skippable video is shown
  }
  @Override
  public void onNonSkippableVideoShowFailed() {
    // Called when non-skippable video show failed
  }
  @Override
  public void onNonSkippableVideoFinished() {
    // Called when non-skippable video is viewed until the end
  }
  @Override
  public void onNonSkippableVideoClosed(boolean finished) {
    // Called when non-skippable video is closed
  }
  @Override
  public void onNonSkippableVideoExpired() {
    // Called when non-skippable video is expired
  }
});

All callbacks are called on the main thread.

4. Cache non-skippable video manually

To disable automatic caching for non-skippable videos, use the code below before the SDK initialization:

Appodeal.setAutoCache(Appodeal.NON_SKIPPABLE_VIDEO, false);
To cache non-skippable videos, use:
Appodeal.cache(this, Appodeal.NON_SKIPPABLE_VIDEO);
Read more on manual caching in our FAQ.

Native ads

1. Cache native ads

To cache native ads, use:

Appodeal.cache(this, Appodeal.NATIVE);
To cache multiple native ads, use:
Appodeal.cache(this, Appodeal.NATIVE, 3);
The number of cached ads is not guaranteed and could be less than requested.

2. Check if native ad was loaded

Appodeal.isLoaded(Appodeal.NATIVE);

3. Get loaded native ads

To get loaded native ads, use the following method:

Appodeal.getNativeAds(int amount);
This method returns list of NativeAd objects as per requested amount of loaded native ads. Once you get the ads, they are removed from our SDK cache.

4. Use native ads callbacks

Appodeal.setNativeCallbacks(new NativeCallbacks() {
  @Override
  public void onNativeLoaded() {
    // Called when native ads are loaded
  }
  @Override
  public void onNativeFailedToLoad() {
    // Called when native ads are failed to load
  }
  @Override
  public void onNativeShown(NativeAd nativeAd) {
    // Called when native ad is shown
  }
  @Override
  public void onNativeShowFailed(NativeAd nativeAd) {
    // Called when native ad show failed
  }
  @Override
  public void onNativeClicked(NativeAd nativeAd) {
    // Called when native ads is clicked
  }
  @Override
  public void onNativeExpired() {
    // Called when native ads is expired
  }
});

All callbacks are called on the main thread.

5. Cache native ads manually

To disable automatic caching for native ads, use the code below before the SDK initialization:

Appodeal.setAutoCache(Appodeal.NATIVE, false);
To cache native ads, use:
Appodeal.cache(this, Appodeal.NATIVE);
Read more on manual caching in our FAQ.

6. Get available native ads count

Appodeal.getAvailableNativeAdsCount();

7. Common mistakes with native ads

  • No ad attribution or AdChoices icon

The majority of ad networks require from publishers to add a special mark to a native ad, so users don’t mistake them for content. That’s why you always need to make sure, that native ads in your app have the ad attribution (e.g., “Ad”) or the AdChoices icon.

  • Absence of the required native ad elements

Every native ad should contain:

    • title;
    • call-to-action button;
    • ad attribution or AdChoices icon;
    • icon, image or video.

  • Native ad elements alteration

Advertisers expect that their ads will be displayed clearly and without any alteration. You can scale buttons and images, but you shouldn't crop, cover or distort them.

  • Overlaying elements of native ads on each other

Make sure, that all elements of a native ad are visible and not overlaid.

Native ads requirements:

  • All of the fields of native ad marked as mandatory must be displayed.
  • Every ad should have a sign that clearly indicates that it is an ad. For example "Ad" or "Sponsored".
  • Image assests can be resized to fit your ad space but should not be significantly distorted or cropped.

8. NativeAd object

After getting loaded native ads using Appodeal.getNativeAds(), a list of NativeAd objects is returned.

Name of methodsTypeMandatoryDescription
nativeAd.getTitle()StringMandatoryTitle of the native ad. Maximum 25 symbols of the title should always be displayed. You can add ellipsis at the end if the title is longer.
nativeAd.getCallToAction()StringMandatoryCall-to-action text. Should be displayed without truncation on a visible button.
nativeAd.getDescription()StringOptionalText description of the native ad. If you choose to display the description, you should display maximum 100 characters. You can add ellipsis at the end.
nativeAd.getRating()FloatOptionalRating of the app in [0-5] range
nativeAd.getAgeRestrictions()StringOptionalApp age restriction. May return null.
nativeAd.getAdProvider()StringOptionalGets provider name of native ad.
nativeAd.getProviderView(context)ViewMandatoryIf it doesn’t return null, it’s mandatory to display the provider icon in any corner of the native ad. Used by some networks to display AdChoices or the privacy icon.
nativeAd.containsVideo()BooleanOptionalReturns true, if NativeAd object contains video.
nativeAd.canShow(String placementName)BooleanOptionalCheck if native ad can be shown with the placement.
nativeAd.isPrecache()BooleanOptionalCheck if native ad is precache.
nativeAd.getPredictedEcpm()DoubleOptionalReturns the predicted ecpm for creative.
nativeAd.destroy()VoidMandatoryDestroys the native ad, unregisters from tracking.

9. Configuration

Native ads assets caching

Set required native media assets for what necessary for show. Default value is ALL.

  • Appodeal.setRequiredNativeMediaAssetType(Native.MediaAssetType.ALL) - assets caching for NativeIconView and NativeMediaView;
  • Appodeal.setRequiredNativeMediaAssetType(Native.MediaAssetType.ICON) - assets caching only for NativeIconView;
  • Appodeal.setRequiredNativeMediaAssetType(Native.MediaAssetType.IMAGE) - assets caching only for NativeMediaView.

Native video

To show video native ads, add NativeMediaView to native ad layout.

NativeMediaView nativeMediaView = (NativeMediaView) adView.findViewById(R.id.appodeal_media_view_content);
if (nativeAd.containsVideo()) {
    nativeAd.setNativeMediaView(nativeMediaView);
} else {
   nativeMediaView.setVisibility(View.GONE);
}

Native video settings

To control whether you want to show video native ads, use the following methods:

  • Appodeal.setNativeAdType(Native.NativeAdType.Auto) - both static image and video native ads will be loaded;
  • Appodeal.setNativeAdType(Native.NativeAdType.NoVideo) - only static image native ads will be loaded;
  • Appodeal.setNativeAdType(Native.NativeAdType.Video) - only video native ads will be loaded.

Templates

Appodeal SDK provides 3 types of templates for native ads:

  • NativeAdViewNewsFeed;
  • NativeAdViewAppWall;
  • NativeAdViewContentStream.

If you want to use one of these templates, you can add the selected template in the layout:

<com.appodeal.ads.native_ad.views.NativeAdViewNewsFeed
	android:id="@+id/native_ad_view_news_feed"
	android:layout_width="match_parent"
	android:layout_height="wrap_content"
	android:layout_marginBottom="10dp">
</com.appodeal.ads.native_ad.views.NativeAdViewNewsFeed>

<com.appodeal.ads.native_ad.views.NativeAdViewAppWall
	android:id="@+id/native_ad_view_app_wall"
	android:layout_width="wrap_content"
	android:layout_height="wrap_content"
	android:layout_marginBottom="10dp">
</com.appodeal.ads.native_ad.views.NativeAdViewAppWall>

<com.appodeal.ads.native_ad.views.NativeAdViewContentStream
	android:id="@+id/native_ad_view_content_stream"
	android:layout_width="match_parent"
	android:layout_height="wrap_content"
	android:layout_marginBottom="10dp">
</com.appodeal.ads.native_ad.views.NativeAdViewContentStream>
And when you need to show the ad:
NativeAdViewNewsFeed nav_nf = (NativeAdViewNewsFeed) mActivity.findViewById(R.id.native_ad_view_news_feed);
nav_nf.setNativeAd(mNativeAd);

NativeAdViewAppWall nav_aw = (NativeAdViewAppWall) mActivity.findViewById(R.id.native_ad_view_app_wall);
nav_aw.setNativeAd(mNativeAd);

NativeAdViewContentStream nav_cs = (NativeAdViewContentStream) mActivity.findViewById(R.id.native_ad_view_content_stream);
nav_cs.setNativeAd(mNativeAd);
You can also create a view programmatically and add it to the screen:
RelativeLayout holder = (RelativeLayout) mActivity.findViewById(R.id.native_template_holder);
NativeAdViewAppWall nativeAdView = new NativeAdViewAppWall(mActivity, mNativeAd);
holder.addView(nativeAdView);

Template elements

TextView getTitleView()
TextView getDescriptionView()
View getRatingView()
RatingBar getRatingBar()
View getProviderView()
TextView getCallToActionView()
NativeIconView getNativeIconView()
NativeMediaView getNativeMediaView()
By default, native ads are labeled «Ad». You can replace it with «Sponsored»:
nav.showSponsored(true)
To change the color of the call-to-action button in the templates, use:
nav.setCallToActionColor(int color)
nav.setCallToActionColor(String color)

Сustom layout

NativeAdView nativeAdView = (NativeAdView) findViewById(R.id.native_layout)

TextView tvTitle = (TextView) nativeAdView.findViewById(R.id.tv_title);
tvTitle.setText(nativeAd.getTitle());
nativeAdView.setTitleView(tvTitle);

TextView tvDescription = (TextView) nativeAdView.findViewById(R.id.tv_description);
tvDescription.setText(nativeAd.getDescription());
nativeAdView.setDescriptionView(tvDescription);

RatingBar ratingBar = (RatingBar) nativeAdView.findViewById(R.id.rb_rating);
if (nativeAd.getRating() == 0) {
	ratingBar.setVisibility(View.INVISIBLE);
} else {
	ratingBar.setVisibility(View.VISIBLE);
	ratingBar.setRating(nativeAd.getRating());
	ratingBar.setStepSize(0.1f);
}
nativeAdView.setRatingView(ratingBar);

Button ctaButton = (Button) nativeAdView.findViewById(R.id.b_cta);
ctaButton.setText(nativeAd.getCallToAction());
nativeAdView.setCallToActionView(ctaButton);

View providerView = nativeAd.getProviderView(mNativeListView.getContext());
if (providerView != null) {
	if (providerView.getParent() != null && providerView.getParent() instanceof ViewGroup) {
		((ViewGroup) providerView.getParent()).removeView(providerView);
	}
	FrameLayout providerViewContainer = (FrameLayout) nativeAdView.findViewById(R.id.provider_view);
	ViewGroup.LayoutParams layoutParams = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
	providerViewContainer.addView(providerView, layoutParams);
}
nativeAdView.setProviderView(providerView);

TextView tvAgeRestrictions = (TextView) nativeAdView.findViewById(R.id.tv_age_restriction);
if (nativeAd.getAgeRestrictions() != null) {
	tvAgeRestrictions.setText(nativeAd.getAgeRestrictions());
	tvAgeRestrictions.setVisibility(View.VISIBLE);
} else {
	tvAgeRestrictions.setVisibility(View.GONE);
}

NativeIconView nativeIconView = nativeAdView.findViewById(R.id.icon);
nativeAdView.setNativeIconView(nativeIconView);

NativeMediaView nativeMediaView = (NativeMediaView) nativeAdView.findViewById(R.id.appodeal_media_view_content);
nativeAdView.setNativeMediaView(nativeMediaView);

nativeAdView.registerView(nativeAd);
To show NativeAd in custom layout you should use NativeAdView, populate and register the asset views.

Bind assets view to NativeAdView:

nativeAdView.setTitleView(View view)
nativeAdView.setCallToActionView(View view)
nativeAdView.setRatingView(View view)
nativeAdView.setDescriptionView(View view)
nativeAdView.setProviderView(View view)
nativeAdView.setNativeIconView(NativeIconView nativeIconView)
nativeAdView.setNativeMediaView(NativeMediaView nativeMediaView)
And register NativeAd object in NativeAdView:
nativeAdView.registerView(NativeAd nativeAd) // or nativeAdView.registerView(NativeAd nativeAd, placementName) if you use placements
If another NativeAd was registered to this instance of view, it wil be automatically unregistered.

To unregister NativeAd from NativeAdView, call:

nativeAdView.unregisterViewForInteraction()
If NativeAdView is reused to display the same ad or to display other ads, it's better call the unregisterViewForInteraction() method before you can register the same view with another instance of NativeAd.

To destroy NativeAd that was registered to NativeAdView, you should call:

nativeAdView.destroy()
You can't use this instance on NativeAdView after call destroy(). You should hide this view or register another NativeAd.

10. Native ads integration example

public void loadNativeAds() {
    Appodeal.setRequiredNativeMediaAssetType(Native.MediaAssetType.ICON);
    Appodeal.initialize(this, YOUR_APP_KEY, Appodeal.NATIVE, consentValue);
    Appodeal.setNativeCallbacks(new NativeCallbacks() {
        @Override
        public void onNativeLoaded() {
            Toast.makeText(MainActivity.this, "onNativeLoaded", Toast.LENGTH_SHORT).show();
        }

        @Override
        public void onNativeFailedToLoad() {
            Toast.makeText(MainActivity.this, "onNativeFailedToLoad", Toast.LENGTH_SHORT).show();
        }

        @Override
        public void onNativeShown(NativeAd nativeAd) {
            Toast.makeText(MainActivity.this, "onNativeShown", Toast.LENGTH_SHORT).show();
        }

        @Override
        public void onNativeClicked(NativeAd nativeAd) {
            Toast.makeText(MainActivity.this, "onNativeClicked", Toast.LENGTH_SHORT).show();
        }

        @Override
        public void onNativeExpired() {
            Toast.makeText(MainActivity.this, "onNativeExpired", Toast.LENGTH_SHORT).show();
        }
    });
};
To show loaded native ad:
public void showNativeAd(){
    List<NativeAd> loadedNativeAds = Appodeal.getNativeAds(1);
    if (loadedNativeAds.isEmpty()){
        //Native Ads not loaded yet
        return;
    }
    NativeAd nativeAd = loadedNativeAds.get(0);
    NativeAdView nativeAdView = (NativeAdView) findViewById(R.id.native_layout);

    TextView tvTitle = (TextView) nativeAdView.findViewById(R.id.tv_title);
    tvTitle.setText(nativeAd.getTitle());
    nativeAdView.setTitleView(tvTitle);

    TextView tvDescription = (TextView) nativeAdView.findViewById(R.id.tv_description);
    tvDescription.setText(nativeAd.getDescription());
    nativeAdView.setDescriptionView(tvDescription);

    RatingBar ratingBar = (RatingBar) nativeAdView.findViewById(R.id.rb_rating);
    if (nativeAd.getRating() == 0) {
        ratingBar.setVisibility(View.INVISIBLE);
    } else {
        ratingBar.setVisibility(View.VISIBLE);
        ratingBar.setRating(nativeAd.getRating());
        ratingBar.setStepSize(0.1f);
    }
    nativeAdView.setRatingView(ratingBar);

    Button ctaButton = (Button) nativeAdView.findViewById(R.id.b_cta);
    ctaButton.setText(nativeAd.getCallToAction());
    nativeAdView.setCallToActionView(ctaButton);

    View providerView = nativeAd.getProviderView(this);
    if (providerView != null) {
        if (providerView.getParent() != null && providerView.getParent() instanceof ViewGroup) {
            ((ViewGroup) providerView.getParent()).removeView(providerView);
        }
        FrameLayout providerViewContainer = (FrameLayout) nativeAdView.findViewById(R.id.provider_view);
        ViewGroup.LayoutParams layoutParams = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
        providerViewContainer.addView(providerView, layoutParams);
    }
    nativeAdView.setProviderView(providerView);

    TextView tvAgeRestrictions = (TextView) nativeAdView.findViewById(R.id.tv_age_restriction);
    if (nativeAd.getAgeRestrictions() != null) {
        tvAgeRestrictions.setText(nativeAd.getAgeRestrictions());
        tvAgeRestrictions.setVisibility(View.VISIBLE);
    } else {
        tvAgeRestrictions.setVisibility(View.GONE);
    }

    NativeIconView nativeIconView = nativeAdView.findViewById(R.id.icon);
    nativeAdView.setNativeIconView(nativeIconView);

    NativeMediaView nativeMediaView = (NativeMediaView) nativeAdView.findViewById(R.id.appodeal_media_view_content);
    nativeAdView.setNativeMediaView(nativeMediaView);

    nativeAdView.registerView(nativeAd);
    nativeAdView.setVisibility(View.VISIBLE);
}

11. Native Ad integration to the feed

You can use this example to integrate Naitve Ad to existing feed in your application:

import android.support.annotation.Nullable;
import android.support.v7.widget.RecyclerView;
import android.util.SparseArray;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.FrameLayout;
import android.widget.RatingBar;
import android.widget.TextView;

import com.appodeal.ads.Appodeal;
import com.appodeal.ads.NativeAd;
import com.appodeal.ads.NativeAdView;
import com.appodeal.ads.NativeCallbacks;
import com.appodeal.ads.NativeIconView;
import com.appodeal.ads.NativeMediaView;

import java.util.List;

/**
 * Wrapper adapter to show Native Ad in recycler view with fixed step
 */
public class AppodealWrapperAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> implements NativeCallbacks {

    private static final int DEFAULT_NATIVE_STEP = 5;

    private static final int VIEW_HOLDER_NATIVE_AD_TYPE = 600;


    private RecyclerView.Adapter<RecyclerView.ViewHolder> userAdapter;
    private int nativeStep = DEFAULT_NATIVE_STEP;

    private SparseArray<NativeAd> nativeAdList = new SparseArray<>();

    /**
     * @param userAdapter user adapter
     * @param nativeStep step show {@link com.appodeal.ads.NativeAd}
     */
    public AppodealWrapperAdapter(RecyclerView.Adapter<RecyclerView.ViewHolder> userAdapter, int nativeStep) {
        this.userAdapter = userAdapter;
        this.nativeStep = nativeStep + 1;

        userAdapter.registerAdapterDataObserver(new RecyclerView.AdapterDataObserver() {

            @Override
            public void onChanged() {
                super.onChanged();

                AppodealWrapperAdapter.this.notifyDataSetChanged();

                fillListWithAd();
            }

            @Override
            public void onItemRangeInserted(int positionStart, int itemCount) {
                super.onItemRangeInserted(positionStart, itemCount);

                AppodealWrapperAdapter.this.notifyDataSetChanged();

                fillListWithAd();
            }
        });

        Appodeal.setNativeCallbacks(this);

        fillListWithAd();
    }


    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        if (viewType == VIEW_HOLDER_NATIVE_AD_TYPE) {
            View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.include_native_ads, parent, false);
            return new NativeCustomAdViewHolder(view);
        } else {
            return userAdapter.onCreateViewHolder(parent, viewType);
        }
    }

    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
        if (holder instanceof NativeCustomAdViewHolder) {
            ((NativeCustomAdViewHolder) holder).fillNative(nativeAdList.get(position));
        } else {
            userAdapter.onBindViewHolder(holder, getPositionInUserAdapter(position));
        }
    }

    @Override
    public int getItemCount() {
        int resultCount = 0;

        resultCount += getNativeAdsCount();
        resultCount += getUserAdapterItemCount();

        return resultCount;
    }

    @Override
    public int getItemViewType(int position) {
        if (isNativeAdPosition(position)) {
            return VIEW_HOLDER_NATIVE_AD_TYPE;
        } else {
            return userAdapter.getItemViewType(getPositionInUserAdapter(position));
        }
    }

    @Override
    public void onViewRecycled(RecyclerView.ViewHolder holder) {
        super.onViewRecycled(holder);

        if (holder instanceof NativeCustomAdViewHolder) {
            ((NativeCustomAdViewHolder) holder).unregisterViewForInteraction();
        }
    }

    /**
     * Destroy all used native ads
     */
    public void destroyNativeAds() {
        if (nativeAdList != null) {
            for (int i = 0; i < nativeAdList.size(); i++) {
                NativeAd nativeAd = nativeAdList.valueAt(i);
                nativeAd.destroy();
            }

            nativeAdList.clear();
        }
    }

    @Override
    public void onNativeLoaded() {
        fillListWithAd();
    }

    @Override
    public void onNativeFailedToLoad() {

    }

    @Override
    public void onNativeShown(NativeAd nativeAd) {

    }

    @Override
    public void onNativeClicked(NativeAd nativeAd) {

    }

    @Override
    public void onNativeExpired() {

    }


    /**
     * @return count of loaded ads {@link com.appodeal.ads.NativeAd}
     */
    private int getNativeAdsCount() {
        if (nativeAdList != null) {
            return nativeAdList.size();
        }

        return 0;
    }

    /**
     * @return user items count
     */
    private int getUserAdapterItemCount() {
        if (userAdapter != null) {
            return userAdapter.getItemCount();
        }

        return 0;
    }

    /**
     * @param position index in wrapper adapter
     * @return {@code true} if item by position is {@link com.appodeal.ads.NativeAd}
     */
    private boolean isNativeAdPosition(int position) {
        return nativeAdList.get(position) != null;
    }

    /**
     * Method for searching position in user adapter
     * @param position index in wrapper adapter
     * @return index in user adapter
     */
    private int getPositionInUserAdapter(int position) {
        return position - Math.min(nativeAdList.size(), position / nativeStep);
    }

    /**
     * Method for filling list with {@link com.appodeal.ads.NativeAd}
     */
    private void fillListWithAd() {
        int insertPosition = findNextAdPosition();

        NativeAd nativeAd;
        while (canUseThisPosition(insertPosition) && (nativeAd = getNativeAdItem()) != null) {
            nativeAdList.put(insertPosition, nativeAd);
            notifyItemInserted(insertPosition);

            insertPosition = findNextAdPosition();
        }
    }

    /**
     * Get native ad item
     * @return {@link com.appodeal.ads.NativeAd}
     */
    @Nullable
    private NativeAd getNativeAdItem() {
        List<NativeAd> ads = Appodeal.getNativeAds(1);
        return !ads.isEmpty() ? ads.get(0) : null;
    }

    /**
     * Method for finding next position suitable for {@link com.appodeal.ads.NativeAd}
     * @return position for next native ad view
     */
    private int findNextAdPosition() {
        if (nativeAdList.size() > 0) {
            return nativeAdList.keyAt(nativeAdList.size() - 1) + nativeStep;
        }
        return nativeStep - 1;
    }

    /**
     * @param position index in wrapper adapter
     * @return {@code true} if you can add {@link com.appodeal.ads.NativeAd} to this position
     */
    private boolean canUseThisPosition(int position) {
        return nativeAdList.get(position) == null && getItemCount() > position;
    }


    /**
     * View holder for create custom {@link com.appodeal.ads.native_ad.views.NativeAdView}
     */
    static class NativeCustomAdViewHolder extends RecyclerView.ViewHolder {

        private NativeAdView nativeAdView;
        private TextView tvTitle;
        private TextView tvDescription;
        private RatingBar ratingBar;
        private Button ctaButton;
        private NativeIconView nativeIconView;
        private TextView tvAgeRestrictions;
        private NativeMediaView nativeMediaView;
        private FrameLayout providerViewContainer;

        NativeCustomAdViewHolder(View itemView) {
            super(itemView);

            nativeAdView = itemView.findViewById(R.id.native_item);
            tvTitle = itemView.findViewById(R.id.tv_title);
            tvDescription = itemView.findViewById(R.id.tv_description);
            ratingBar = itemView.findViewById(R.id.rb_rating);
            ctaButton = itemView.findViewById(R.id.b_cta);
            nativeIconView = itemView.findViewById(R.id.icon);
            providerViewContainer = itemView.findViewById(R.id.provider_view);
            tvAgeRestrictions = itemView.findViewById(R.id.tv_age_restriction);
            nativeMediaView = itemView.findViewById(R.id.appodeal_media_view_content);
        }

        void fillNative(NativeAd nativeAd) {
            tvTitle.setText(nativeAd.getTitle());
            tvDescription.setText(nativeAd.getDescription());

            if (nativeAd.getRating() == 0) {
                ratingBar.setVisibility(View.INVISIBLE);
            } else {
                ratingBar.setVisibility(View.VISIBLE);
                ratingBar.setRating(nativeAd.getRating());
                ratingBar.setStepSize(0.1f);
            }

            ctaButton.setText(nativeAd.getCallToAction());

            View providerView = nativeAd.getProviderView(nativeAdView.getContext());
            if (providerView != null) {
                if (providerView.getParent() != null && providerView.getParent() instanceof ViewGroup) {
                    ((ViewGroup) providerView.getParent()).removeView(providerView);
                }
                providerViewContainer.removeAllViews();
                ViewGroup.LayoutParams layoutParams = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
                providerViewContainer.addView(providerView, layoutParams);
            }

            if (nativeAd.getAgeRestrictions() != null) {
                tvAgeRestrictions.setText(nativeAd.getAgeRestrictions());
                tvAgeRestrictions.setVisibility(View.VISIBLE);
            } else {
                tvAgeRestrictions.setVisibility(View.GONE);
            }

            if (nativeAd.containsVideo()) {
                nativeAdView.setNativeMediaView(nativeMediaView);
            } else {
                nativeMediaView.setVisibility(View.GONE);
            }


            nativeAdView.setTitleView(tvTitle);
            nativeAdView.setDescriptionView(tvDescription);
            nativeAdView.setRatingView(ratingBar);
            nativeAdView.setCallToActionView(ctaButton);
            nativeAdView.setNativeIconView(nativeIconView);
            nativeAdView.setProviderView(providerView);

            nativeAdView.registerView(nativeAd);
            nativeAdView.setVisibility(View.VISIBLE);
        }

        void unregisterViewForInteraction() {
            nativeAdView.unregisterViewForInteraction();
        }

    }
}
To use this wrapper adapter, you should create a new instance of AppodealWrapperAdapter:
AppodealWrapperAdapter appodealWrapperAdapter = new AppodealWrapperAdapter(myAdapter, 2);
And set this wrapper adapter to your recycler view.

Banner

1. Display banner at the bottom of the screen

Appodeal.show(this, Appodeal.BANNER_BOTTOM);

2. Display banner at the top of the screen

Appodeal.show(this, Appodeal.BANNER_TOP);

SDK can't show ads without network connection!

Appodeal.show() returns a boolean value indicating whether the show call was passed to the appropriate SDK. 

3. Display banner in the specified view in layout file

Add com.appodeal.ads.BannerView to your layout file:

<com.appodeal.ads.BannerView 
	android:id="@+id/appodealBannerView"
	android:layout_width="match_parent"
	android:layout_height="wrap_content"
	android:visibility="gone" />
Set view id before the SDK initialization to show banner in:
Appodeal.setBannerViewId(R.id.appodealBannerView);
Now you can show banner in the view specified:
Appodeal.show(this, Appodeal.BANNER_VIEW);

Important!

Custom BannerView should be on the top of the hierarchy and can not be overlapped by other views.

4. Display banner in programmatically created view

Create banner view:

Appodeal.getBannerView(this);
Add view to your layout and then show banner in it:
Appodeal.show(this, Appodeal.BANNER_VIEW);

5. Check if banner is loaded

Appodeal.isLoaded(Appodeal.BANNER);

6. Use banner callbacks

Appodeal.setBannerCallbacks(new BannerCallbacks() {
  @Override
  public void onBannerLoaded(int height, boolean isPrecache) {
    // Called when banner is loaded
  }
  @Override
  public void onBannerFailedToLoad() {
    // Called when banner failed to load
  }
  @Override
  public void onBannerShown() {
    // Called when banner is shown
  }
  @Override
  public void onBannerShowFailed() {
    // Called when banner show failed
  }
  @Override
  public void onBannerClicked() {
    // Called when banner is clicked
  }
  @Override
  public void onBannerExpired() {
    // Called when banner is expired
  }
});

All callbacks are called on the main thread.

If automatic caching is ON for the Banner ad type, do not show banners in the onBannerLoaded callback. The banners will be refreshed automatically after the first show.

7. Activity "Paused" state handling

In order for the previously shown banner to be shown after the activity exits from the "Paused" state, you must override the "onResume" method of your Activity and call the appropriate method on Appodeal indicating the type of banner previously shown:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    Appodeal.show(this, Appodeal.BANNER_TOP);
}

@Override
public void onResume() {
    super.onResume();
    Appodeal.onResume(this, Appodeal.BANNER_TOP);
}

8. Hide banner

Appodeal.hide(this, Appodeal.BANNER);

9. Destroy shown banner

To free memory from hidden banner, call the code below:

Appodeal.destroy(Appodeal.BANNER);

10. Cache banner manually

To disable automatic caching for banners, use the code below before the SDK initialization:

Appodeal.setAutoCache(Appodeal.BANNER, false);
To cache banners, use:
Appodeal.cache(this, Appodeal.BANNER);
Read more on manual caching in our FAQ.

11. Configuration

Enable 728*90 banners

To enable 728*90 banners, use the following method:

Appodeal.set728x90Banners(true);

Disable banner refresh animation

To disable banner refresh animation, use:

Appodeal.setBannerAnimation(false);

Disable smart banners

Smart banners are the banner ads which automatically fit the screen size. Using them helps to deal with the increasing fragmentation of the screen sizes on different devices. In the Appodeal SDK the smart banners are enabled by default. To disable them, use the following method:

Appodeal.setSmartBanners(false);

MREC

It’s a deprecated ad format and it is recommended to use native ads instead.

1. Display MREC

Add com.appodeal.ads.MrecView to your layout file:

<com.appodeal.ads.MrecView
	android:id="@+id/appodealMrecView"
	android:layout_width="300dp"
	android:layout_height="250dp"
	android:layout_centerInParent="true"
	android:visibility="gone" />
Set view id before the SDK initialization:
Appodeal.setMrecViewId(R.id.appodealMrecView);
Now you can show banner in the specified view:
Appodeal.show(this, Appodeal.MREC);

SDK can't show ads without network connection!

Appodeal.show() returns a boolean value indicating whether the show call was passed to the appropriate SDK. 

2. Display MREC in programmatically created view

Create banner view:

Appodeal.getMrecView(this);
Add view to your layout and then show the banner in it:
Appodeal.show(this, Appodeal.MREC);

3. Check if MREC is loaded

Appodeal.isLoaded(Appodeal.MREC);

4. Use MREC callbacks

Appodeal.setMrecCallbacks(new MrecCallbacks() {
  @Override
  public void onMrecLoaded(boolean isPrecache) {
    // Called when MREC is loaded
  }
  @Override
  public void onMrecFailedToLoad() {
    // Called when MREC failed to load
  }
  @Override
  public void onMrecShown() {
    // Called when MREC is shown
  }
  @Override
  public void onMrecShowFailed() {
    // Called when MREC show failed
  }
  @Override
  public void onMrecClicked() {
    // Called when MREC is clicked
  }
  @Override
  public void onMrecExpired() {
    // Called when MREC is expired
  }
});

All callbacks are called on the main thread.

If automatic caching is ON for the MREC ad type, do not show MREC in the onMrecLoaded callback. MREC will be refreshed automatically after the first show.

5. Activity "Paused" state handling

In order for the previously shown MREC to be shown after the activity exits from the "Paused" state, you must override the "onResume" method of your Activity and call the appropriate method on Appodeal:

@Override
public void onResume() {
  super.onResume();
  Appodeal.onResume(this, Appodeal.MREC);
}

6. Hide MREC

Appodeal.hide(this, Appodeal.MREC);

7. Destroy shown MREC

To free memory from the hidden MREC, call the code below:

Appodeal.destroy(Appodeal.MREC);

8. Cache MREC manually

To disable automatic caching for MREC, use the code below before the SDK initialization:

Appodeal.setAutoCache(Appodeal.MREC, false);
To cache 300*250 banners, use:
Appodeal.cache(this, Appodeal.MREC);
Read more on manual caching in our FAQ.