廣告載入失敗時,一律會呼叫 委派方法或完成的處理常式 ,藉此提供NSError
物件。
對 a GADBannerView
來說,系統會呼叫下列程式碼:
Swift
func bannerView(_ bannerView: GADBannerView, didFailToReceiveAdWithError error: Error)
Objective-C
- (void)bannerView:(nonnull GADBannerView *)bannerView didFailToReceiveAdWithError:(nonnull NSError *)error;
下列程式碼片段說明廣告無法載入時可用的資訊:
Swift
func bannerView(_ bannerView: GADBannerView, didFailToReceiveAdWithError error: Error) { // Gets the domain from which the error came. let errorDomain = error.domain // Gets the error code. See // https://developers.google.com/admob/ios/api/reference/Enums/GADErrorCode // for a list of possible codes. let errorCode = error.code // Gets an error message. // For example "Account not approved yet". See // https://support.google.com/admob/answer/9905175 for explanations of // common errors. let errorMessage = error.localizedDescription // Gets additional response information about the request. See // https://developers.google.com/admob/ios/response-info for more information. let responseInfo = (error as NSError).userInfo[GADErrorUserInfoKeyResponseInfo] as? GADResponseInfo // Gets the underlyingError, if available. let underlyingError = (error as NSError).userInfo[NSUnderlyingErrorKey] as? Error if let responseInfo = responseInfo { print("Received error with domain: \(errorDomain), code: \(errorCode)," + "message: \(errorMessage), responseInfo: \(responseInfo)," + "underlyingError: \(underlyingError?.localizedDescription ?? "nil")") } }
Objective-C
- (void)bannerView:(GADBannerView *)bannerView didFailToReceiveAdWithError:(NSError *)error { // Gets the domain from which the error came. NSString *errorDomain = error.domain; // Gets the error code. See // https://developers.google.com/admob/ios/api/reference/Enums/GADErrorCode // for a list of possible codes. int errorCode = error.code; // Gets an error message. // For example "Account not approved yet". See // https://support.google.com/admob/answer/9905175 for explanations of // common errors. NSString *errorMessage = error.localizedDescription; // Gets additional response information about the request. See // https://developers.google.com/admob/ios/response-info for more // information. GADResponseInfo *responseInfo = error.userInfo[GADErrorUserInfoKeyResponseInfo]; // Gets the underlyingError, if available. NSError *underlyingError = error.userInfo[NSUnderlyingErrorKey]; NSLog(@"Received error with domain: %@, code: %ld, message: %@, " @"responseInfo: %@, underlyingError: %@", errorDomain, errorCode, errorMessage, responseInfo, underlyingError.localizedDescription); }
這項資訊可用來更準確地判斷出廣告載入失敗的原因。
具體來說,如果是網域 GADErrorDomain
,localizedDescription
可以查詢這篇說明中心文章,取得更詳細的說明,以及該如何解決問題的建議做法。