폭포식 구조 미디에이션 체인에서 맞춤 이벤트 광고 항목에 도달하면 맞춤 이벤트를 만들 때 제공한 클래스 이름에 loadBanner:adConfiguration:completionHandler: 메서드가 호출됩니다. 이 경우 이 메서드는 SampleCustomEvent에 있고 SampleCustomEventBanner에서 loadBanner:adConfiguration:completionHandler: 메서드를 호출합니다.
배너 광고를 요청하려면 GADMediationAdapter 및 loadBanner:adConfiguration:completionHandler:를 구현하는 클래스를 만들거나 수정하세요. GADMediationAdapter를 확장하는 클래스가 이미 있다면 이 클래스에 loadBanner:adConfiguration:completionHandler:를 구현합니다. 또한 GADMediationBannerAd를 구현할 새 클래스를 만듭니다.
맞춤 이벤트 예에서 SampleCustomEvent는 GADMediationAdapter 인터페이스를 구현한 다음 SampleCustomEventBanner에 위임합니다.
Ad Manager UI에 정의된 선택적 매개변수는 광고 구성에 포함됩니다.
adConfiguration.credentials.settings[@"parameter"]를 통해 매개변수에 액세스할 수 있습니다. 이 매개변수는 일반적으로 광고 네트워크 SDK가 광고 객체를 인스턴스화할 때 요구하는 광고 단위 식별자입니다.
광고를 성공적으로 가져왔거나 오류가 발생하면 GADMediationBannerLoadCompletionHandler를 호출합니다. 성공하면 오류 매개변수의 nil 값으로 GADMediationBannerAd를 구현하는 클래스를 전달합니다. 오류가 발생하면 발생한 오류를 전달합니다.
일반적으로 이러한 메서드는 어댑터가 구현하는 서드 파티 SDK의 콜백 내에서 구현됩니다. 다음 예시의 샘플 SDK에는 관련 콜백이 있는 SampleBannerAdDelegate가 있습니다.
로드된 광고로 GADMediationBannerLoadCompletionHandler를 호출한 후 반환된 GADMediationBannerAdEventDelegate 대리자 객체를 어댑터에서 사용하여 프레젠테이션 이벤트를 서드 파티 SDK에서 Google 모바일 광고 SDK로 전달할 수 있습니다. SampleCustomEventBanner 클래스는 SampleBannerAdDelegate 프로토콜을 구현하여 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: 2025-09-02(UTC)"],[[["\u003cp\u003eTo request a banner ad within a custom event, create a class that implements \u003ccode\u003eGADMediationAdapter\u003c/code\u003e and the \u003ccode\u003eloadBanner:adConfiguration:completionHandler:\u003c/code\u003e method.\u003c/p\u003e\n"],["\u003cp\u003eA separate class implementing \u003ccode\u003eGADMediationBannerAd\u003c/code\u003e should handle loading the ad, reporting events to the Google Mobile Ads SDK, and providing a \u003ccode\u003eUIView\u003c/code\u003e property for display.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eGADMediationBannerLoadCompletionHandler\u003c/code\u003e is called upon ad load success or failure, passing the \u003ccode\u003eGADMediationBannerAd\u003c/code\u003e instance or an error, respectively.\u003c/p\u003e\n"],["\u003cp\u003eForward relevant ad events (like clicks) from the third-party ad network SDK to the Google Mobile Ads SDK using the \u003ccode\u003eGADMediationBannerAdEventDelegate\u003c/code\u003e received from the \u003ccode\u003eGADMediationBannerLoadCompletionHandler\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eRefer to the complete custom event example on GitHub for implementation details and guidance.\u003c/p\u003e\n"]]],["To request a banner ad via custom events, implement `GADMediationAdapter` and `loadBanner:adConfiguration:completionHandler:`, delegating to a class that implements `GADMediationBannerAd`. This class is responsible for loading the banner, implementing `GADMediationBannerAd`, and reporting ad event callbacks. The `loadBanner:` method within this class fetches the ad, and then invokes a completion handler (`GADMediationBannerLoadCompletionHandler`) whether loading succeeds or fails, passing the banner ad or an error, respectively. Finally, use `GADMediationBannerAdEventDelegate` to forward presentation events.\n"],null,["Prerequisites\n\nComplete the [custom events setup](/ad-manager/mobile-ads-sdk/ios/custom-events/setup).\n\nRequest a banner ad\n\nWhen the custom event line item is reached in the waterfall mediation chain,\nthe `loadBanner:adConfiguration:completionHandler:` method is called on the\nclass name you provided when [creating a custom\nevent](/ad-manager/mobile-ads-sdk/ios/custom-events/setup#create). In this case,\nthat method is in `SampleCustomEvent`, which then calls\nthe `loadBanner:adConfiguration:completionHandler:` method in\n`SampleCustomEventBanner`.\n\nTo request a banner ad, create or modify a class that implements\n`GADMediationAdapter` and `loadBanner:adConfiguration:completionHandler:`. If a\nclass that extends `GADMediationAdapter` already exists, implement\n`loadBanner:adConfiguration:completionHandler:` there. Additionally, create a\nnew class to implement `GADMediationBannerAd`.\n\nIn our custom event example,\n[`SampleCustomEvent`](//github.com/googleads/googleads-mobile-ios-mediation/blob/main/example/CustomEvent/SampleCustomEvent.m) implements\nthe `GADMediationAdapter` interface and then delegates to\n`SampleCustomEventBanner`. \n\nSwift \n\n```swift\nimport GoogleMobileAds\n\nclass SampleCustomEvent: NSObject, MediationAdapter {\n\n fileprivate var bannerAd: SampleCustomEventBanner?\n ...\n\n func loadBanner(\n for adConfiguration: MediationBannerAdConfiguration,\n completionHandler: @escaping GADMediationBannerLoadCompletionHandler\n ) {\n self.bannerAd = SampleCustomEventBanner()\n self.bannerAd?.loadBanner(\n for: adConfiguration, completionHandler: completionHandler)\n }\n}\n```\n\nObjective-C \n\n```objective-c\n#import \"SampleCustomEvent.h\"\n\n@implementation SampleCustomEvent\n...\n\nSampleCustomEventBanner *sampleBanner;\n\n- (void)loadBannerForAdConfiguration:\n (GADMediationBannerAdConfiguration *)adConfiguration\n completionHandler:(GADMediationBannerLoadCompletionHandler)\n completionHandler {\n sampleBanner = [[SampleCustomEventBanner alloc] init];\n [sampleBanner loadBannerForAdConfiguration:adConfiguration\n completionHandler:completionHandler];\n}\n```\n\n`SampleCustomEventBanner` is responsible for the following tasks:\n\n- Loading the banner ad and invoking a\n [`GADMediationBannerLoadCompletionHandler`](/ad-manager/mobile-ads-sdk/ios/api/reference/Protocols/GADMediationAdapter) method once\n loading completes.\n\n- Implementing the `GADMediationBannerAd` protocol.\n\n- Receiving and reporting ad event callbacks to Google Mobile Ads SDK.\n\nThe optional parameter defined in the Ad Manager UI is\nincluded in the ad configuration.\nThe parameter can be accessed through\n`adConfiguration.credentials.settings[@\"parameter\"]`. This parameter is\ntypically an ad unit identifier that an ad network SDK requires when\ninstantiating an ad object. \n\nSwift \n\n```swift\nclass SampleCustomEventBanner: NSObject, MediationBannerAd {\n /// The Sample Ad Network banner ad.\n var bannerAd: SampleBanner?\n\n /// The ad event delegate to forward ad rendering events to Google Mobile Ads SDK.\n var delegate: MediationBannerAdEventDelegate?\n\n /// Completion handler called after ad load\n var completionHandler: GADMediationBannerLoadCompletionHandler?\n\n func loadBanner(\n for adConfiguration: MediationBannerAdConfiguration,\n completionHandler: @escaping GADMediationBannerLoadCompletionHandler\n ) {\n // Create the bannerView with the appropriate size.\n let adSize = adConfiguration.adSize\n bannerAd = SampleBanner(\n frame: CGRect(x: 0, y: 0, width: adSize.size.width, height: adSize.size.height))\n bannerAd?.delegate = self\n bannerAd?.adUnit = adConfiguration.credentials.settings[\"parameter\"] as? String\n let adRequest = SampleAdRequest()\n adRequest.testMode = adConfiguration.isTestRequest\n self.completionHandler = completionHandler\n bannerAd?.fetchAd(adRequest)\n }\n}\n```\n\nObjective-C \n\n```objective-c\n#import \"SampleCustomEventBanner.h\"\n\n@interface SampleCustomEventBanner () \u003cSampleBannerAdDelegate,\n GADMediationBannerAd\u003e {\n /// The sample banner ad.\n SampleBanner *_bannerAd;\n\n /// The completion handler to call when the ad loading succeeds or fails.\n GADMediationBannerLoadCompletionHandler _loadCompletionHandler;\n\n /// The ad event delegate to forward ad rendering events to the Google Mobile\n /// Ads SDK.\n id \u003cGADMediationBannerAdEventDelegate\u003e _adEventDelegate;\n}\n@end\n\n@implementation SampleCustomEventBanner\n\n- (void)loadBannerForAdConfiguration:\n (GADMediationBannerAdConfiguration *)adConfiguration\n completionHandler:(GADMediationBannerLoadCompletionHandler)\n completionHandler {\n __block atomic_flag completionHandlerCalled = ATOMIC_FLAG_INIT;\n __block GADMediationBannerLoadCompletionHandler originalCompletionHandler =\n [completionHandler copy];\n\n _loadCompletionHandler = ^id\u003cGADMediationBannerAdEventDelegate\u003e(\n _Nullable id\u003cGADMediationBannerAd\u003e ad, NSError *_Nullable error) {\n // Only allow completion handler to be called once.\n if (atomic_flag_test_and_set(&completionHandlerCalled)) {\n return nil;\n }\n\n id\u003cGADMediationBannerAdEventDelegate\u003e delegate = nil;\n if (originalCompletionHandler) {\n // Call original handler and hold on to its return value.\n delegate = originalCompletionHandler(ad, error);\n }\n\n // Release reference to handler. Objects retained by the handler will also\n // be released.\n originalCompletionHandler = nil;\n\n return delegate;\n };\n\n NSString *adUnit = adConfiguration.credentials.settings[@\"parameter\"];\n _bannerAd = [[SampleBanner alloc]\n initWithFrame:CGRectMake(0, 0, adConfiguration.adSize.size.width,\n adConfiguration.adSize.size.height)];\n _bannerAd.adUnit = adUnit;\n _bannerAd.delegate = self;\n SampleAdRequest *adRequest = [[SampleAdRequest alloc] init];\n adRequest.testMode = adConfiguration.isTestRequest;\n [_bannerAd fetchAd:adRequest];\n}\n```\n\nWhether the ad is successfully fetched or encounters an error, you\nwould call `GADMediationBannerLoadCompletionHandler`. In the event of success,\npass through the class that implements `GADMediationBannerAd` with a `nil` value\nfor the error parameter; in the event of failure, pass through the error you\nencountered.\n\nTypically, these methods are implemented inside callbacks from the\nthird-party SDK your adapter implements. For this example, the Sample SDK\nhas a `SampleBannerAdDelegate` with relevant callbacks: \n\nSwift \n\n```swift\nfunc bannerDidLoad(_ banner: SampleBanner) {\n if let handler = completionHandler {\n delegate = handler(self, nil)\n }\n}\n\nfunc banner(\n _ banner: SampleBanner, didFailToLoadAdWith errorCode: SampleErrorCode\n) {\n let error =\n SampleCustomEventUtilsSwift.SampleCustomEventErrorWithCodeAndDescription(\n code: SampleCustomEventErrorCodeSwift\n .SampleCustomEventErrorAdLoadFailureCallback,\n description:\n \"Sample SDK returned an ad load failure callback with error code: \\(errorCode)\"\n )\n if let handler = completionHandler {\n delegate = handler(nil, error)\n }\n}\n```\n\nObjective-C \n\n```objective-c\n- (void)bannerDidLoad:(SampleBanner *)banner {\n _adEventDelegate = _loadCompletionHandler(self, nil);\n}\n\n- (void)banner:(SampleBanner *)banner\n didFailToLoadAdWithErrorCode:(SampleErrorCode)errorCode {\n NSError *error = SampleCustomEventErrorWithCodeAndDescription(\n SampleCustomEventErrorAdLoadFailureCallback,\n [NSString stringWithFormat:@\"Sample SDK returned an ad load failure \"\n @\"callback with error code: %@\",\n errorCode]);\n _adEventDelegate = _loadCompletionHandler(nil, error);\n}\n```\n\n`GADMediationBannerAd` requires implementing a `UIView` property: \n\nSwift \n\n```swift\nvar view: UIView {\n return bannerAd ?? UIView()\n}\n```\n\nObjective-C \n\n```objective-c\n- (nonnull UIView *)view {\n return _bannerAd;\n}\n```\n\nForward mediation events to Google Mobile Ads SDK\n\nOnce you've called `GADMediationBannerLoadCompletionHandler` with a loaded ad,\nthe returned `GADMediationBannerAdEventDelegate` delegate object can then be\nused by the adapter to forward presentation events from the third-party SDK to\nGoogle Mobile Ads SDK. The `SampleCustomEventBanner` class implements the\n`SampleBannerAdDelegate` protocol to forward callbacks from the sample ad\nnetwork 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 Google Mobile Ads SDK.\nHere's an example of using callbacks: \n\nSwift \n\n```swift\nfunc bannerWillLeaveApplication(_ banner: SampleBanner) {\n delegate?.reportClick()\n}\n```\n\nObjective-C \n\n```objective-c\n- (void)bannerWillLeaveApplication:(SampleBanner *)banner {\n [_adEventDelegate reportClick];\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-ios-mediation/tree/main/example/CustomEvent).\nYou can use it with an ad network that is already supported or modify it to\ndisplay custom event banner ads."]]