在 Android 中实现横幅广告
注意：在展示横幅广告之前必须初始化 Unity Ads。
横幅广告需要特定类型的专用横幅广告单元。
您可以将横幅广告视图对象放入 View 层级视图中，就像放置任何其他视图一样。这样就可以自定义每个横幅广告实例的位置，或显示多个横幅广告。
注意：app-ads.txt 是一个 IAB 倡议文件，旨在打击欺诈，建立透明的广告生态系统。请务必按照要求实现 app-ads.txt。否则，横幅广告需求可能会显著下降。
脚本实现
以下脚本示例是用于在屏幕上显示两个横幅广告以及用于测试这些广告的按钮的示例实现方案：
此示例对多个横幅广告视图对象使用单个监听器。也可以为每个横幅广告视图对象设置不同的监听器。
实现 MREC 横幅广告格式
要在应用中显示中等矩形 (MREC) 大小的广告格式，请确保使用适当的尺寸，例如 300x250、300x300 或 450x450。如果使用的是 300x250 的 MREC 横幅广告，将它替换为以下示例代码：
new UnityBannerSize(320, 50)调整后的尺寸：
new UnityBannerSize(300, 250)示例代码
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() {
@Override
public 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() {
@Override
public 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) {
}
}