网络专属请求参数

某些广告联盟适配器支持可在创建广告请求时向适配器传递的额外参数。这些额外信息称为广告联盟额外信息。

Google 移动广告插件在 Android 和 iOS 设备上提供了 API，可让您将广告联盟额外信息传递给中介适配器。为此，您需要在 Android 上实现 MediationNetworkExtrasProvider，在 iOS 上实现 FLTMediationNetworkExtrasProvider，然后向插件注册 extras 提供程序实现。此后，当插件在 Android 或 iOS 设备上创建广告请求时，将用它来传递广告联盟额外信息。

在 Android 上注册您的 MediationNetworkExtrasProvider

创建 MediationNetworkExtrasProvider 的实现：

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;
  }
}

然后使用 GoogleMobileAdsPlugin 注册该监听器：

// 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());
  }
}

您可以在 Android 参考文档中查看不同网络支持哪些 extra，以及如何为特定网络构建这些 extra。

在 iOS 上注册您的 FLTMediationNetworkExtrasProvider

创建 FLTMediationNetworkExtrasProvider 的实现：

@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

然后使用 FLTGoogleMobileAdsPlugin 注册该监听器：

@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

您可以在 iOS 参考文档中查看不同网络支持哪些 extra，以及如何为特定网络构建这些 extra。