本頁面由 Cloud Translation API 翻譯而成。

插頁式獎勵廣告 (Beta 版)

插頁式獎勵廣告是一種獎勵廣告格式獎勵自動在應用程式的自然轉換期間自動切換。有別於獎勵廣告必須啟用才能觀看插頁式獎勵廣告。本指南說明如何整合 Ad Manager 的插頁式獎勵廣告移至 Flutter 應用程式

先備知識

Flutter 外掛程式 1.1.0 以上版本。
完成開始使用。您的 Flutter 應用程式應該已安裝 Google Mobile Ads Flutter 外掛程式已匯入。

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，而非現場及正式環境廣告否則可能導致帳戶遭到停權。

要載入測試廣告，最簡單的方法是使用我們專屬的測試廣告單元編號。插頁式獎勵廣告：

/21775744923/example/rewarded_interstitial

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 = '/21775744923/example/rewarded_interstitial';

  /// Loads a rewarded ad.
  void loadAd() {
    RewardedInterstitialAd.loadWithAdManagerAdRequest(
        adUnitId: adUnitId,
        adManagerAdRequest: const AdManagerAdRequest(),
        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。組合 RewardedInterstitialAd.fullScreenContentCallback後，才向以下對象顯示廣告：接收這些事件的通知。這個範例將實作每個方法並記錄訊息至控制台

class RewardedInterstitialExampleState extends State<RewardedInterstitialExample> {
  RewardedInterstitialAd? _rewardedInterstitialAd;

  // TODO: replace this test ad unit with your own ad unit.
  final adUnitId = '/21775744923/example/rewarded_interstitial';

  /// Loads a rewarded ad.
  void loadAd() {
    RewardedInterstitialAd.loadWithAdManagerAdRequest(
        adUnitId: adUnitId,
        adManagerAdRequest: const AdManagerAdRequest(),
        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。請務必導入這個功能，並獎勵觀看廣告的使用者

_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要顯示的通話會觸發 onAdFailedToShowFullScreenContent。

不再需要放送的廣告時，必須予以處理。最佳做法何時該呼叫 dispose() 位於「FullScreenContentCallback.onAdDismissedFullScreenContent」和 FullScreenContentCallback.onAdFailedToShowFullScreenContent 回呼。

大功告成！您的應用程式現在可以顯示插頁式獎勵廣告了。