插頁式廣告會全螢幕顯示,覆蓋整個應用程式的介面。這類廣告通常會在應用程式流程中的自然轉換點顯示,例如活動之間或遊戲關卡之間的暫停期間。應用程式顯示插頁式廣告時,使用者可選擇輕觸廣告前往到達網頁,或是關閉廣告並返回應用程式。
本指南說明如何將插頁式廣告整合至 Flutter 應用程式。
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,而非實際製作的廣告。否則您的帳戶可能會遭到停權。
如要載入測試廣告,最簡單的方法就是使用我們專用的插頁式廣告專用廣告單元 ID:
/6499/example/interstitial
測試廣告單元已設為針對每個請求傳回測試廣告,而您可以在自己的應用程式中自由使用這些廣告單元,藉此編寫、測試及偵錯。請務必先將這些編號換成自己的廣告單元 ID,再發布應用程式。
載入廣告
以下範例會載入插頁式廣告:
class InterstitialExampleState extends State<InterstitialExample> { AdManagerInterstitialAd? _interstitialAd; // TODO: replace this test ad unit with your own ad unit. final adUnitId = '/6499/example/interstitial'; /// Loads an interstitial ad. void loadAd() { AdManagerInterstitialAd.load( adUnitId: adUnitId, request: const AdManagerAdRequest(), adLoadCallback: AdManagerInterstitialAdLoadCallback( // Called when an ad is successfully received. onAdLoaded: (ad) { debugPrint('$ad loaded.'); // Keep a reference to the ad so you can show it later. _interstitialAd = ad; }, // Called when an ad request failed. onAdFailedToLoad: (LoadAdError error) { debugPrint('AdManagerInterstitialAd failed to load: $error'); }, )); } }
插頁式廣告事件
透過使用 FullScreenContentCallback
,您可以監聽生命週期事件,例如廣告顯示或關閉的時間。只要在顯示廣告前設定 AdManagerInterstitialAd.fullScreenContentCallback
,即可接收這些事件的通知。以下範例會實作每個方法:
class InterstitialExampleState extends State<InterstitialExample> { AdManagerInterstitialAd? _interstitialAd; // TODO: replace this test ad unit with your own ad unit. final adUnitId = '/6499/example/interstitial'; /// Loads an interstitial ad. void loadAd() { AdManagerInterstitialAd.load( adUnitId: adUnitId, request: const AdManagerAdRequest(), adLoadCallback: AdManagerInterstitialAdLoadCallback( // Called when an ad is successfully received. onAdLoaded: (ad) { ad.fullScreenContentCallback = FullScreenContentCallback( // Called when the ad showed the full screen content. onAdShowedFullScreenContent: (ad) {}, // Called when an impression occurs on the ad. onAdImpression: (ad) {}, // Called when the ad failed to show full screen content. onAdFailedToShowFullScreenContent: (ad, err) { // Dispose the ad here to free resources. ad.dispose(); }, // Called when the ad dismissed full screen content. onAdDismissedFullScreenContent: (ad) { // Dispose the ad here to free resources. ad.dispose(); }, // Called when a click is recorded for an ad. onAdClicked: (ad) {}); debugPrint('$ad loaded.'); // Keep a reference to the ad so you can show it later. _interstitialAd = ad; }, // Called when an ad request failed. onAdFailedToLoad: (LoadAdError error) { debugPrint('AdManagerInterstitialAd failed to load: $error'); }, )); } }
顯示插頁式廣告
AdManagerInterstitialAd
會顯示為 Overlay
在所有應用程式內容上方,並以靜態方式放置,因此無法新增至 Flutter 小工具樹狀結構。您可以呼叫 show()
來選擇廣告的顯示時機。
_interstitiaAd.show();
呼叫 show()
後,無法以程式輔助方式關閉以這種方式顯示的 Ad
,必須要求使用者輸入內容。AdManagerInterstitialAd
只能顯示一次,後續的呼叫將觸發 onAdFailedToShowFullScreenContent
。
如果不再需要某則廣告,就必須拒登。呼叫 dispose()
的時機,最佳做法是在 FullScreenContentCallback.onAdDismissedFullScreenContent
和 FullScreenContentCallback.onAdFailedToShowFullScreenContent
回呼中。
大功告成!您的應用程式已準備好顯示插頁式廣告。