網路專屬要求參數

部分聯播網轉接程式支援額外的參數，可在建立廣告請求時傳遞至轉接程式。這些配額稱為網路額外項目，

Google Mobile Ads 外掛程式提供 Android 和 iOS 上的 API，可讓您將聯播網額外項目傳遞至中介服務轉接程式。如要這麼做，您需要在 Android 上實作 MediationNetworkExtrasProvider 並在 iOS 上實作 FLTMediationNetworkExtrasProvider，然後以該外掛程式註冊額外供應商實作項目。之後，外掛程式就會在 Android 或 iOS 上建立廣告請求時，使用該外掛程式傳遞聯播網額外項目。

在 Android 上註冊 MediationNetworkExtrasProvider

建立 MediationNetworkExtrasProvider 的實作：

class MyMediationNetworkExtrasProvider implements MediationNetworkExtrasProvider {

  @Override
  public Map<Class<? extends MediationExtrasReceiver>, Bundle> getMediationExtras(
      String adUnitId, @Nullable String identifier) {
    // This example passes extras to the AppLovin adapter.
    // This method is called with the ad unit of the associated ad request, and
    // an optional string parameter which comes from the dart ad request object.
    Bundle appLovinBundle = new AppLovinExtras.Builder().setMuteAudio(true).build();
    Map<Class<? extends MediationExtrasReceiver>, Bundle> extras = new HashMap<>();
    extras.put(ApplovinAdapter.class, appLovinBundle);
    // Note: You can pass extras to multiple adapters by adding more entries.
    return extras;
  }
}

然後向 GoogleMobileAdsPlugin 註冊：

// Register a MediationNetworkExtrasProvider with the plugin.
public class MainActivity extends FlutterActivity {

  @Override
  public void configureFlutterEngine(@NonNull FlutterEngine flutterEngine) {
    super.configureFlutterEngine(flutterEngine);

    // Register your MediationNetworkExtrasProvider to provide network extras to ad requests.
    GoogleMobileAdsPlugin.registerMediationNetworkExtrasProvider(
        flutterEngine, new MyMediationNetworkExtrasProvider());
  }
}

您可以查看不同網路支援哪些額外功能，以及如何在特定網路的 Android 參考資料中建構這些額外功能。

在 iOS 上註冊 FLTMediationNetworkExtrasProvider

建立 FLTMediationNetworkExtrasProvider 的實作：

@implementation MyFLTMediationNetworkExtrasProvider

- (NSArray<id<GADAdNetworkExtras>> *_Nullable)getMediationExtras:(NSString *_Nonnull)adUnitId
                                       mediationExtrasIdentifier:
                                           (NSString *_Nullable)mediationExtrasIdentifier {
  // This example passes extras to the AppLovin adapter.
  // This method is called with the ad unit of the associated ad request, and
  // an optional string parameter which comes from the dart ad request object.
  GADMAdapterAppLovinExtras *appLovinExtras = [[GADMAdapterAppLovinExtras alloc] init];
  appLovinExtras.muteAudio = NO;
  // Note: You can pass extras to multiple adapters by adding more entries.

  return @[ appLovinExtras ];
}
@end

並向 FLTGoogleMobileAdsPlugin 註冊：

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application
    didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
  [GeneratedPluginRegistrant registerWithRegistry:self];

  // Register your network extras provider if you want to provide
  // network extras to specific ad requests.
  MyFLTMediationNetworkExtrasProvider *networkExtrasProvider =
      [[MyFLTMediationNetworkExtrasProvider alloc] init];
  [FLTGoogleMobileAdsPlugin registerMediationNetworkExtrasProvider:networkExtrasProvider
                                                          registry:self];
  return [super application:application didFinishLaunchingWithOptions:launchOptions];
}

@end

您可以查看不同網路支援哪些額外功能，以及如何在特定網路的 iOS 參考資料中建構這些額外功能。