載入單一插頁式廣告

插頁式廣告會全螢幕顯示,通常出現在應用程式的轉換點,例如畫面切換時,或遊戲關卡間的暫停時間。使用者可以輕觸廣告前往到達網頁,也可以關閉廣告返回應用程式。詳情請參閱插頁式廣告指南和個案研究。

本指南說明如何在 React Native 應用程式中整合插頁式廣告。

必要條件

僅適用於搭載 Android

ca-app-pub-3940256099942544/1033173712

iOS

ca-app-pub-3940256099942544/4411468910

載入廣告

如要載入插頁式廣告,請呼叫 InterstitialAd 類別的 load 方法。

以下範例會在成功時載入插頁式廣告,失敗時則記錄錯誤:

export async function loadInterstitialAd(
  adUnitId: string,
): Promise<InterstitialAd | null> {
  try {
    const ad = await InterstitialAd.load({adUnitId});
    return ad;
  } catch (error) {
    const loadError = error as LoadAdError;
    console.error('Failed to load interstitial ad:', loadError.message);
    return null;
  }
}

監聽廣告事件

顯示廣告前,請在載入的 InterstitialAd 執行個體上設定 adEventCallback 事件監聽器。這個事件監聽器會接收廣告生命週期事件的回呼,例如廣告顯示在畫面上,或使用者輕觸廣告。如要查看可用的回呼,請參閱 AdEventCallback。

以下範例設定了回呼,用於監聽廣告事件:

export function registerAdEvents(ad: InterstitialAd) {
  ad.adEventCallback = {
    // Called when the ad is presented on screen.
    onAdShowedFullScreenContent: () => {
      console.log('Interstitial ad showed full screen content.');
    },
    // Called when the ad is closed by the user.
    onAdDismissedFullScreenContent: () => {
      console.log('Interstitial ad dismissed full screen content.');
      ad.destroy();
    },
    // Called when presentation fails.
    onAdFailedToShowFullScreenContent: (error) => {
      console.error('Failed to show interstitial ad:', error);
      ad.destroy();
    },
    // Called when an impression is recorded.
    onAdImpression: () => {
      console.log('Interstitial ad recorded an impression.');
    },
    // Called when the user taps the ad.
    onAdClicked: () => {
      console.log('Interstitial ad was clicked.');
    },
    // Called when the ad is estimated to have earned money.
    onAdPaid: (adValue) => {
      console.log(
        `Interstitial ad paid: ${adValue.amountMicros}` +
          ` ${adValue.currencyCode}`,
      );
    },
  };
}

此外,當使用者關閉廣告或廣告無法顯示時,這個範例也會呼叫 destroy 方法。這個程序會釋出廣告使用的資源。

顯示廣告

如要顯示插頁式廣告,請在已載入的 InterstitialAd 執行個體上呼叫 show 方法。

以下是插頁式廣告範例:

export function showInterstitialAd(ad: InterstitialAd) {
  ad.show();
}

查看完整範例

本節提供完整範例,說明如何將插頁式廣告整合至 React Native 應用程式。

以下範例將廣告整合至 React Native 元件、管理狀態中的廣告例項,並提供載入及顯示廣告的控制項:

export function InterstitialSingleLoadScreen() {
  const [ad, setAd] = useState<InterstitialAd | null>(null);
  const [isLoaded, setIsLoaded] = useState(false);
  const [status, setStatus] = useState<string>('Idle');

  useEffect(() => {
    return () => {
      ad?.destroy();
    };
  }, [ad]);

  const handleLoad = async () => {
    setStatus('Loading Interstitial ad...');
    const loadedAd = await loadInterstitialAd(INTERSTITIAL_AD_UNIT_ID);
    if (loadedAd) {
      registerAdEvents(loadedAd);
      const onDismiss =
        loadedAd.adEventCallback?.onAdDismissedFullScreenContent;
      loadedAd.adEventCallback = {
        ...loadedAd.adEventCallback,
        onAdDismissedFullScreenContent: () => {
          onDismiss?.();
          setStatus('Ad dismissed.');
        },
      };
      setAd((prevAd) => {
        prevAd?.destroy();
        return loadedAd;
      });
      setIsLoaded(true);
      setStatus('Interstitial ad loaded!');
    } else {
      setStatus('Failed to load Interstitial ad.');
    }
  };

  const handleShow = () => {
    if (ad) {
      showInterstitialAd(ad);
      setIsLoaded(false);
    }
  };

  return (
    <View style={styles.container}>
      <Text style={styles.title}>Interstitial Ad</Text>
      <Text style={styles.status}>Status: {status}</Text>
      <View style={styles.buttonGroup}>
        <Button title="Load Ad" onPress={handleLoad} />
        <View style={styles.spacerSmall} />
        <Button title="Show Ad" onPress={handleShow} disabled={!isLoaded} />
      </View>
    </View>
  );
}

後續步驟

插頁式廣告整合完成後,請參閱下列主題: