插頁式獎勵廣告是一種獎勵廣告格式,可讓您在應用程式自然轉換時自動顯示廣告,並提供獎勵。與獎勵廣告不同的是,插頁式獎勵廣告不需要等使用者確定選擇觀看即可放送。本指南說明如何 整合 AdMob 的插頁式獎勵廣告 轉換為 Flutter 應用程式
必要條件
- Flutter 外掛程式 1.1.0 以上版本。
- 完成開始使用。Flutter 應用程式應已匯入 Google 行動廣告 Flutter 外掛程式。
一律使用測試廣告進行測試
建構及測試應用程式時,請務必使用測試廣告,而非實際的正式版廣告。否則帳戶可能會遭到停權。
如要載入測試廣告,最簡單的方法是使用獎勵插頁式廣告專用的測試廣告單元 ID:
Android
ca-app-pub-3940256099942544/5354046379
iOS
ca-app-pub-3940256099942544/6978759866
測試廣告單元會設為針對每個請求傳回測試廣告。 您可以在自己的應用程式中使用這些 API,編寫程式碼、測試及偵錯。 發布前,請確實將這些內容換成自己的廣告單元編號
載入廣告
以下範例會載入插頁式獎勵廣告:
class RewardedInterstitialExampleState extends State<RewardedInterstitialExample> { RewardedInterstitialAd? _rewardeInterstitialdAd; // TODO: replace this test ad unit with your own ad unit. final adUnitId = Platform.isAndroid ? 'ca-app-pub-3940256099942544/5354046379' : 'ca-app-pub-3940256099942544/6978759866'; /// Loads a rewarded ad. void loadAd() { RewardedInterstitialAd.load( adUnitId: adUnitId, adRequest: const AdRequest(), adLoadCallback: RewardedInterstitialAdLoadCallback( // Called when an ad is successfully received. onAdLoaded: (ad) { debugPrint('$ad loaded.'); // Keep a reference to the ad so you can show it later. _rewardedInterstitialAd = ad; }, // Called when an ad request failed. onAdFailedToLoad: (LoadAdError error) { debugPrint('RewardedInterstitialAd failed to load: $error'); }, )); } }
插頁式獎勵廣告事件
使用 FullScreenContentCallback
即可監聽生命週期
事件,例如廣告顯示或關閉時間。請先設定 RewardedInterstitialAd.fullScreenContentCallback
,再放送廣告,以便接收這些事件的通知。這個範例會實作每個方法,並將訊息記錄到控制台:
class RewardedInterstitialExampleState extends State<RewardedInterstitialExample> { RewardedInterstitialAd? _rewardedInterstitialAd; // TODO: replace this test ad unit with your own ad unit. final adUnitId = Platform.isAndroid ? 'ca-app-pub-3940256099942544/5354046379' : 'ca-app-pub-3940256099942544/6978759866'; /// Loads a rewarded ad. void loadAd() { RewardedInterstitialAd.load( adUnitId: adUnitId, adRequest: const AdRequest(), adLoadCallback: RewardedInterstitialAdLoadCallback( // Called when an ad is successfully received. onAdLoaded: (ad) { ad.fullScreenContentCallback = FullScreenContentCallback( // Called when the ad showed the full screen content. onAdShowedFullScreenContent: (ad) {}, // Called when an impression occurs on the ad. onAdImpression: (ad) {}, // Called when the ad failed to show full screen content. onAdFailedToShowFullScreenContent: (ad, err) { // Dispose the ad here to free resources. ad.dispose(); }, // Called when the ad dismissed full screen content. onAdDismissedFullScreenContent: (ad) { // Dispose the ad here to free resources. ad.dispose(); }, // Called when a click is recorded for an ad. onAdClicked: (ad) {}); debugPrint('$ad loaded.'); // Keep a reference to the ad so you can show it later. _rewardedInterstitialAd = ad; }, // Called when an ad request failed. onAdFailedToLoad: (LoadAdError error) { debugprint('RewardedInterstitialAd failed to load: $error'); }, )); } }
多媒體廣告
RewardedInterstitialAd
會在所有應用程式內容上方以重疊形式顯示
而且靜態位置因此無法新增至 Flutter 小工具樹狀結構。
您可以呼叫 show()
來選擇廣告的放送時機。
RewardedInterstitialAd.show()
會採用 OnUserEarnedRewardCallback
,也就是
會在使用者獲得獎勵時叫用。請務必實作這項功能,並在使用者觀看廣告時提供獎勵。
_rewardedInterstitialAd.show(onUserEarnedReward: (AdWithoutView ad, RewardItem rewardItem) { // Reward the user for watching an ad. });
呼叫 show()
後,就無法移除以這種方式顯示的 Ad
需要使用者輸入內容RewardedInterstitialAd
只能
只會顯示一次後續的顯示呼叫會觸發 onAdFailedToShowFullScreenContent
。
廣告必須在不再需要存取權時處置。最佳做法
何時該呼叫 dispose()
位於
「FullScreenContentCallback.onAdDismissedFullScreenContent
」和
FullScreenContentCallback.onAdFailedToShowFullScreenContent
回呼。
大功告成!您的應用程式現在已可顯示插頁式獎勵廣告。