import androidx.appcompat.app.AppCompatActivity;import android.os.Bundle;import com.unity3d.ads.IUnityAdsInitializationListener;import com.unity3d.ads.UnityAds;import com.unity3d.services.banners.BannerErrorInfo;import com.unity3d.services.banners.BannerView;import com.unity3d.services.banners.UnityBannerSize;import android.util.Log;import android.view.View;import android.widget.Button;import android.widget.RelativeLayout;public class ShowBanners extends AppCompatActivity implements IUnityAdsInitializationListener {  String unityGameID = "1234567";  Boolean testMode = true;  String topAdUnitId = "topBanner";  String bottomAdUnitId = "bottomBanner";  // Listener for banner events:  private BannerView.IListener bannerListener = new BannerView.IListener() {    @Override    public void onBannerLoaded(BannerView bannerAdView) {      // Called when the banner is loaded.      Log.v("UnityAdsExample", "onBannerLoaded: " + bannerAdView.getPlacementId());      // Enable the correct button to hide the ad      (bannerAdView.getPlacementId().equals("topBanner") ? hideTopBannerButton : hideBottomBannerButton).setEnabled(true);    }    @Override    public void onBannerFailedToLoad(BannerView bannerAdView, BannerErrorInfo errorInfo) {      Log.e("UnityAdsExample", "Unity Ads failed to load banner for " + bannerAdView.getPlacementId() + " with error: [" + errorInfo.errorCode + "] " + errorInfo.errorMessage);      // Note that the BannerErrorInfo object can indicate a no fill (refer to the API documentation).    }    @Override    public void onBannerClick(BannerView bannerAdView) {      // Called when a banner is clicked.      Log.v("UnityAdsExample", "onBannerClick: " + bannerAdView.getPlacementId());    }    @Override    public void onBannerLeftApplication(BannerView bannerAdView) {      // Called when the banner links out of the application.      Log.v("UnityAdsExample", "onBannerLeftApplication: " + bannerAdView.getPlacementId());    }  };  // This banner view object will be placed at the top of the screen:  BannerView topBanner;  // This banner view object will be placed at the bottom of the screen:  BannerView bottomBanner;  // View objects to display banners:  RelativeLayout topBannerView;  RelativeLayout bottomBannerView;  // Buttons to show the banners:  Button showTopBannerButton;  Button showBottomBannerButton;  // Buttons to destroy the banners:  Button hideTopBannerButton;  Button hideBottomBannerButton;  @Override  protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    // Initialize Unity Ads:    UnityAds.initialize(getApplicationContext(), unityGameID, testMode, this);    // Set up a button to load the top banner when clicked:    showTopBannerButton = findViewById(R.id.loadTopBanner);    // Set up a button to load the bottom banner when clicked:    showBottomBannerButton = findViewById(R.id.loadBottomBanner);    // Set up a button to destroy the top banner when clicked:    hideTopBannerButton = findViewById(R.id.hideTopBanner);    // Set up a button to destroy the bottom banner when clicked:    hideBottomBannerButton = findViewById(R.id.hideBottomBanner);    showTopBannerButton.setEnabled(false);    showBottomBannerButton.setEnabled(false);    hideTopBannerButton.setEnabled(false);    hideBottomBannerButton.setEnabled(false);    showTopBannerButton.setOnClickListener(new View.OnClickListener() {    @Override    public void onClick(View view) {      showTopBannerButton.setEnabled(false);      // Create the top banner view object:      topBanner = new BannerView(view.getContext(), topAdUnitId, new UnityBannerSize(320, 50));      // Set the listener for banner lifecycle events:      topBanner.setListener(bannerListener);      topBannerView = findViewById(R.id.topBanner);      LoadBannerAd(topBanner, topBannerView);  }});showBottomBannerButton.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View view) {        showBottomBannerButton.setEnabled(false);        // Create the bottom banner view object:        bottomBanner = new BannerView(view.getContext(), bottomAdUnitId, new UnityBannerSize(320, 50));        // Set the listener for banner lifecycle events:        bottomBanner.setListener(bannerListener);        bottomBannerView = findViewById(R.id.bottomBanner);        LoadBannerAd(bottomBanner, bottomBannerView);  }});hideTopBannerButton.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {        // Remove content from the banner view:        topBannerView.removeAllViews();        // Remove the banner variables:        topBannerView = null;        topBanner = null;        showTopBannerButton.setEnabled(true);  }});hideBottomBannerButton.setOnClickListener(new View.OnClickListener() {  @Override  public void onClick(View v) {        // Remove content from the banner view:        bottomBannerView.removeAllViews();        // Remove the banner variables:        bottomBannerView = null;        bottomBanner = null;        showBottomBannerButton.setEnabled(true);    }  });}  public void LoadBannerAd(BannerView bannerView, RelativeLayout bannerLayout) {    // Request a banner ad:    bannerView.load();    // Associate the banner view object with the banner view:    bannerLayout.addView(bannerView);  }  @Override  public void onInitializationComplete() {    // Enable the show ad buttons because ads can now be loaded    showTopBannerButton.setEnabled(true);    showBottomBannerButton.setEnabled(true);  }  @Override  public void onInitializationFailed(UnityAds.UnityAdsInitializationError error, String message) {  }}