폭포식 구조 미디에이션 체인에서 맞춤 이벤트 광고 항목에 도달하면 맞춤 이벤트를 만들 때 제공한 클래스 이름에 loadBannerAd() 메서드가 호출됩니다. 이 경우 이 메서드는 SampleCustomEvent에 있고 SampleBannerCustomEventLoader에서 loadBannerAd() 메서드를 호출합니다.
배너 광고를 요청하려면 Adapter를 확장하여 loadBannerAd()를 구현하는 클래스를 만들거나 수정하세요. 또한 MediationBannerAd를 구현할 새 클래스를 만듭니다.
맞춤 이벤트 예에서 SampleCustomEvent는 Adapter 클래스를 확장한 다음 SampleBannerCustomEventLoader에 위임합니다.
UI에 정의된 선택적 매개변수는 광고 구성에 포함됩니다. adConfiguration.getServerParameters().getString(MediationConfiguration.CUSTOM_EVENT_SERVER_PARAMETER_FIELD)를 통해 매개변수에 액세스할 수 있습니다.
이 매개변수는 일반적으로 광고 네트워크 SDK가 광고 객체를 인스턴스화할 때 요구하는 광고 단위 식별자입니다.
onSuccess()가 호출되면 어댑터가 반환된 MediationBannerAdCallback 객체를 사용하여 프레젠테이션 이벤트를 서드 파티 SDK에서 Google 모바일 광고 SDK로 전달할 수 있습니다. SampleBannerCustomEventLoader 클래스는 SampleAdListener 인터페이스를 확장하여 샘플 광고 네트워크의 콜백을 Google 모바일 광고 SDK에 전달합니다.
맞춤 이벤트가 이러한 콜백을 최대한 많이 전달하여 앱이 Google 모바일 광고 SDK에서 동등한 이벤트를 수신하도록 하는 것이 중요합니다. 다음은 콜백을 사용하는 방법의 예시입니다.
[[["이해하기 쉬움","easyToUnderstand","thumb-up"],["문제가 해결됨","solvedMyProblem","thumb-up"],["기타","otherUp","thumb-up"]],[["필요한 정보가 없음","missingTheInformationINeed","thumb-down"],["너무 복잡함/단계 수가 너무 많음","tooComplicatedTooManySteps","thumb-down"],["오래됨","outOfDate","thumb-down"],["번역 문제","translationIssue","thumb-down"],["샘플/코드 문제","samplesCodeIssue","thumb-down"],["기타","otherDown","thumb-down"]],["최종 업데이트: 2025-09-05(UTC)"],[[["\u003cp\u003eTo request banner ads with custom events, extend the \u003ccode\u003eAdapter\u003c/code\u003e class and implement the \u003ccode\u003eloadBannerAd()\u003c/code\u003e method, delegating the ad loading process to a separate loader class.\u003c/p\u003e\n"],["\u003cp\u003eThe loader class is responsible for fetching the ad, handling ad events, and implementing the \u003ccode\u003eMediationBannerAd\u003c/code\u003e interface to interact with the Google Mobile Ads SDK.\u003c/p\u003e\n"],["\u003cp\u003eCustom events receive server parameters from Ad Manager, allowing them to be configured with ad unit IDs or other necessary information.\u003c/p\u003e\n"],["\u003cp\u003eUpon successful ad fetch, the loader class invokes \u003ccode\u003eonSuccess()\u003c/code\u003e on the \u003ccode\u003eMediationAdLoadCallback\u003c/code\u003e, providing an instance of the \u003ccode\u003eMediationBannerAd\u003c/code\u003e implementation.\u003c/p\u003e\n"],["\u003cp\u003eIt's crucial for custom events to forward relevant ad events from the third-party ad network to the Google Mobile Ads SDK using the \u003ccode\u003eMediationBannerAdCallback\u003c/code\u003e.\u003c/p\u003e\n"]]],["To request a banner ad, extend the `Adapter` class, implementing `loadBannerAd()`, and create a new class implementing `MediationBannerAd`. The `loadBannerAd()` method calls a loader class (e.g., `SampleBannerCustomEventLoader`) to load the ad, manage configuration, and handle callbacks. This loader class also implements `MediationBannerAd`, loading the banner and invoking `MediationAdLoadCallback` methods. The UI-defined custom event parameters are accessed via ad configuration. Upon success or failure, `onSuccess()` or `onFailure()` are invoked, and the `MediationBannerAdCallback` is utilized to forward third-party SDK presentation events.\n"],null,["Prerequisites\n\nComplete the [custom events setup](/ad-manager/mobile-ads-sdk/android/custom-events/setup).\n\nRequest a banner ad\n\nWhen the custom event line item is reached in the waterfall mediation chain,\nthe `loadBannerAd()` method is called on the class name you provided when\n[creating a custom\nevent](custom-events/setup#create). In this case,\nthat method is in `SampleCustomEvent`, which then calls the `loadBannerAd()`\nmethod in `SampleBannerCustomEventLoader`.\n\nTo request a banner ad, create or modify a class that extends `Adapter` to\nimplement `loadBannerAd()`. Additionally, create a new class to implement\n`MediationBannerAd`.\n\nIn our [custom event example](//github.com/googleads/googleads-mobile-android-mediation/blob/main/Example/customevent/src/main/java/com/google/ads/mediation/sample/customevent/SampleCustomEvent.java),\n`SampleCustomEvent` extends the `Adapter` class and then delegates to\n`SampleBannerCustomEventLoader`. \n\nJava \n\n```java\npackage com.google.ads.mediation.sample.customevent;\n\nimport com.google.android.gms.ads.mediation.Adapter;\nimport com.google.android.gms.ads.mediation.MediationAdConfiguration;\nimport com.google.android.gms.ads.mediation.MediationAdLoadCallback;\nimport com.google.android.gms.ads.mediation.MediationBannerAd;\nimport com.google.android.gms.ads.mediation.MediationBannerAdCallback;\n...\n\npublic class SampleCustomEvent extends Adapter {\n private SampleBannerCustomEventLoader bannerLoader;\n @Override\n public void loadBannerAd(\n @NonNull MediationBannerAdConfiguration adConfiguration,\n @NonNull MediationAdLoadCallback\u003cMediationBannerAd, MediationBannerAdCallback\u003e callback) {\n bannerLoader = new SampleBannerCustomEventLoader(adConfiguration, callback);\n bannerLoader.loadAd();\n }\n}\n```\n\n`SampleBannerCustomEventLoader` is responsible for the following tasks:\n\n- Loading the banner ad and invoking a\n [`MediationAdLoadCallback`](/ad-manager/mobile-ads-sdk/android/reference/com/google/android/gms/ads/mediation/MediationAdLoadCallback)\n method once loading completes.\n\n- Implementing the `MediationBannerAd` interface.\n\n- Receiving and reporting ad event callbacks to Google Mobile Ads SDK.\n\nThe optional parameter defined in the UI is\nincluded in the ad configuration. The parameter can be accessed through\n`adConfiguration.getServerParameters().getString(MediationConfiguration.CUSTOM_EVENT_SERVER_PARAMETER_FIELD)`.\nThis parameter is typically an ad unit identifier that an ad network SDK\nrequires when instantiating an ad object. \n\nJava \n\n```java\npackage com.google.ads.mediation.sample.customevent;\n\nimport com.google.android.gms.ads.mediation.Adapter;\nimport com.google.android.gms.ads.mediation.MediationBannerAdConfiguration;\nimport com.google.android.gms.ads.mediation.MediationAdLoadCallback;\nimport com.google.android.gms.ads.mediation.MediationBannerAd;\nimport com.google.android.gms.ads.mediation.MediationBannerAdCallback;\n...\n\npublic class SampleBannerCustomEventLoader extends SampleAdListener implements MediationBannerAd {\n\n /** View to contain the sample banner ad. */\n private SampleAdView sampleAdView;\n\n /** Configuration for requesting the banner ad from the third-party network. */\n private final MediationBannerAdConfiguration mediationBannerAdConfiguration;\n\n /** Callback that fires on loading success or failure. */\n private final MediationAdLoadCallback\u003cMediationBannerAd, MediationBannerAdCallback\u003e\n mediationAdLoadCallback;\n\n /** Callback for banner ad events. */\n private MediationBannerAdCallback bannerAdCallback;\n\n /** Constructor. */\n public SampleBannerCustomEventLoader(\n @NonNull MediationBannerAdConfiguration mediationBannerAdConfiguration,\n @NonNull MediationAdLoadCallback\u003cMediationBannerAd, MediationBannerAdCallback\u003e\n mediationAdLoadCallback) {\n this.mediationBannerAdConfiguration = mediationBannerAdConfiguration;\n this.mediationAdLoadCallback = mediationAdLoadCallback;\n }\n\n /** Loads a banner ad from the third-party ad network. */\n public void loadAd() {\n // All custom events have a server parameter named \"parameter\" that returns\n // back the parameter entered into the UI when defining the custom event.\n Log.i(\"BannerCustomEvent\", \"Begin loading banner ad.\");\n String serverParameter =\n mediationBannerAdConfiguration.getServerParameters().getString(\n MediationConfiguration.CUSTOM_EVENT_SERVER_PARAMETER_FIELD);\n\n Log.d(\"BannerCustomEvent\", \"Received server parameter.\");\n\n Context context = mediationBannerAdConfiguration.getContext();\n sampleAdView = new SampleAdView(context);\n\n // Assumes that the serverParameter is the ad unit of the Sample Network.\n sampleAdView.setAdUnit(serverParameter);\n AdSize size = mediationBannerAdConfiguration.getAdSize();\n\n // Internally, smart banners use constants to represent their ad size, which\n // means a call to AdSize.getHeight could return a negative value. You can\n // accommodate this by using AdSize.getHeightInPixels and\n // AdSize.getWidthInPixels instead, and then adjusting to match the device's\n // display metrics.\n int widthInPixels = size.getWidthInPixels(context);\n int heightInPixels = size.getHeightInPixels(context);\n DisplayMetrics displayMetrics = Resources.getSystem().getDisplayMetrics();\n int widthInDp = Math.round(widthInPixels / displayMetrics.density);\n int heightInDp = Math.round(heightInPixels / displayMetrics.density);\n\n sampleAdView.setSize(new SampleAdSize(widthInDp, heightInDp));\n sampleAdView.setAdListener(this);\n\n SampleAdRequest request = createSampleRequest(mediationBannerAdConfiguration);\n Log.i(\"BannerCustomEvent\", \"Start fetching banner ad.\");\n sampleAdView.fetchAd(request);\n }\n\n public SampleAdRequest createSampleRequest(\n MediationAdConfiguration mediationAdConfiguration) {\n SampleAdRequest request = new SampleAdRequest();\n request.setTestMode(mediationAdConfiguration.isTestRequest());\n request.setKeywords(mediationAdConfiguration.getMediationExtras().keySet());\n return request;\n }\n}\n```\n\nDepending on whether the ad is successfully fetched or encounters an error, you\nwould call either\n[`onSuccess()`](/ad-manager/mobile-ads-sdk/android/reference/com/google/android/gms/ads/mediation/MediationAdLoadCallback#onSuccess(MediationAdT))\nor\n[`onFailure()`](/ad-manager/mobile-ads-sdk/android/reference/com/google/android/gms/ads/mediation/MediationAdLoadCallback#onFailure(com.google.android.gms.ads.AdError)).\n`onSuccess()` is called by passing in an instance of the class that implements\n`MediationBannerAd`.\n\nTypically, these methods are implemented inside callbacks from the\nthird-party SDK your adapter implements. For this example, the Sample SDK\nhas a `SampleAdListener` with relevant callbacks: \n\nJava \n\n```java\n@Override\npublic void onAdFetchSucceeded() {\n bannerAdCallback = mediationAdLoadCallback.onSuccess(this);\n}\n\n@Override\npublic void onAdFetchFailed(SampleErrorCode errorCode) {\n mediationAdLoadCallback.onFailure(SampleCustomEventError.createSampleSdkError(errorCode));\n}\n```\n\n`MediationBannerAd` requires implementing a `View` getter method: \n\nJava \n\n```java\n@Override\n@NonNull\npublic View getView() {\n return sampleAdView;\n}\n```\n\nForward mediation events to Google Mobile Ads SDK\n\nOnce `onSuccess()` is called, the returned `MediationBannerAdCallback` object\ncan then be used by the adapter to forward presentation events from the\nthird-party SDK to Google Mobile Ads SDK. The\n`SampleBannerCustomEventLoader` class extends the `SampleAdListener` interface\nto forward callbacks from the sample ad network to Google Mobile Ads SDK.\n\nIt's important that your custom event forwards as many of these callbacks as\npossible, so that your app receives these equivalent events from the Google\nMobile Ads SDK. Here's an example of using callbacks: \n\nJava \n\n```java\n@Override\npublic void onAdFullScreen() {\n bannerAdCallback.onAdOpened();\n bannerAdCallback.reportAdClicked();\n}\n\n@Override\npublic void onAdClosed() {\n bannerAdCallback.onAdClosed();\n}\n```\n\nThis completes the custom events implementation for banner ads. The full example\nis available on\n[GitHub](//github.com/googleads/googleads-mobile-android-mediation/tree/master/Example/customevent/src/main/java/com/google/ads/mediation/sample/customevent).\nYou can use it with an ad network that is already supported or modify it to\ndisplay custom event banner ads."]]