Quando l'elemento pubblicitario evento personalizzato viene raggiunto nella catena di mediazione a cascata,
viene chiamato il metodo loadBannerAd() sul nome della classe che hai fornito durante la
creazione di un evento
personalizzato. In questo caso,
il metodo si trova in SampleCustomEvent, che poi chiama il metodo loadBannerAd()
in SampleBannerCustomEventLoader.
Per richiedere un annuncio banner, crea o modifica una classe che estenda Adapter per
implementare loadBannerAd(). Inoltre, crea una nuova classe per implementare
MediationBannerAd.
Nel nostro esempio di evento personalizzato,
SampleCustomEvent estende la classe Adapter e poi delega a
SampleBannerCustomEventLoader.
Ricezione e segnalazione di callback degli eventi pubblicitari all'SDK Google Mobile Ads.
Il parametro facoltativo definito nell'interfaccia utente di
è incluso nella configurazione dell'annuncio. È possibile accedere al parametro tramite
adConfiguration.getServerParameters().getString(MediationConfiguration.CUSTOM_EVENT_SERVER_PARAMETER_FIELD).
Questo parametro è in genere un identificatore dell'unità pubblicitaria richiesto da un SDK di rete pubblicitaria
quando viene creata un'istanza di un oggetto annuncio.
A seconda che l'annuncio venga recuperato correttamente o si verifichi un errore, devi chiamare
onSuccess()
o
onFailure().
onSuccess() viene chiamato passando un'istanza della classe che implementa
MediationBannerAd.
In genere, questi metodi vengono implementati all'interno dei callback dell'SDK di terze parti implementato dall'adattatore. Per questo esempio, l'SDK di esempio
ha un SampleAdListener con callback pertinenti:
Inoltrare gli eventi di mediazione all'SDK Google Mobile Ads
Una volta chiamato onSuccess(), l'oggetto MediationBannerAdCallback restituito
può essere utilizzato dall'adattatore per inoltrare gli eventi di presentazione dall'SDK
di terze parti all'SDK Google Mobile Ads. La classe
SampleBannerCustomEventLoader estende l'interfaccia SampleAdListener
per inoltrare i callback dalla rete pubblicitaria di esempio all'SDK Google Mobile Ads.
È importante che l'evento personalizzato inoltri il maggior numero possibile di questi callback, in modo che la tua app riceva questi eventi equivalenti dall'SDK Google Mobile Ads. Ecco un esempio di utilizzo dei callback:
In questo modo, l'implementazione degli eventi personalizzati per gli annunci banner è completata. L'esempio completo
è disponibile su
GitHub.
Puoi utilizzarlo con una rete pubblicitaria già supportata o modificarlo per
visualizzare banner pubblicitari di eventi personalizzati.
[[["Facile da capire","easyToUnderstand","thumb-up"],["Il problema è stato risolto","solvedMyProblem","thumb-up"],["Altra","otherUp","thumb-up"]],[["Mancano le informazioni di cui ho bisogno","missingTheInformationINeed","thumb-down"],["Troppo complicato/troppi passaggi","tooComplicatedTooManySteps","thumb-down"],["Obsoleti","outOfDate","thumb-down"],["Problema di traduzione","translationIssue","thumb-down"],["Problema relativo a esempi/codice","samplesCodeIssue","thumb-down"],["Altra","otherDown","thumb-down"]],["Ultimo aggiornamento 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."]]