import android.app.Activity;
import android.os.Bundle;
import android.util.Log;

import androidx.appcompat.app.AppCompatActivity;

import com.unity3d.ads.IUnityAdsLoadListener;
import com.unity3d.ads.IUnityAdsShowListener;
import com.unity3d.ads.UnityAdsShowOptions;
import com.unity3d.ads.example.R;

import com.unity3d.ads.IUnityAdsInitializationListener;
import com.unity3d.ads.UnityAds;

public class ShowInterstitialAd extends AppCompatActivity implements IUnityAdsInitializationListener  {

private String unityGameID = "1234567";
private Boolean testMode = true;
private String adUnitId = "video";

private IUnityAdsLoadListener loadListener = new IUnityAdsLoadListener() {
   @Override
   public void onUnityAdsAdLoaded(String placementId) {
      UnityAds.show((Activity)getApplicationContext(), adUnitId, new UnityAdsShowOptions(), showListener);
   }

   @Override
   public void onUnityAdsFailedToLoad(String placementId, UnityAds.UnityAdsLoadError error, String message) {
      Log.e("UnityAdsExample", "Unity Ads failed to load ad for " + placementId + " with error: [" + error + "] " + message);
   }
};

private IUnityAdsShowListener showListener = new IUnityAdsShowListener() {
   @Override
   public void onUnityAdsShowFailure(String placementId, UnityAds.UnityAdsShowError error, String message) {
      Log.e("UnityAdsExample", "Unity Ads failed to show ad for " + placementId + " with error: [" + error + "] " + message);
   }

   @Override
   public void onUnityAdsShowStart(String placementId) {
      Log.v("UnityAdsExample", "onUnityAdsShowStart: " + placementId);
   }

   @Override
   public void onUnityAdsShowClick(String placementId) {
      Log.v("UnityAdsExample", "onUnityAdsShowClick: " + placementId);
   }

   @Override
   public void onUnityAdsShowComplete(String placementId, UnityAds.UnityAdsShowCompletionState state) {
      Log.v("UnityAdsExample", "onUnityAdsShowComplete: " + placementId);
   }
};

@Override
protected void onCreate (Bundle savedInstanceState) {
   super.onCreate (savedInstanceState);
   setContentView (R.layout.activity_main);
   // Initialize the SDK:
   UnityAds.initialize(getApplicationContext(), unityGameID, testMode, this);
}

@Override
public void onInitializationComplete() {
   DisplayInterstitialAd();
}

@Override
public void onInitializationFailed(UnityAds.UnityAdsInitializationError error, String message) {
   Log.e("UnityAdsExample", "Unity Ads initialization failed with error: [" + error + "] " + message);
}

// Implement a function to load an interstitial ad. The ad will start to show after the ad has been loaded.
public void DisplayInterstitialAd () {
   UnityAds.load(adUnitId, loadListener);
}
}