โฆษณาคั่นระหว่างหน้า

class InterstitialExampleState extends State<InterstitialExample> {
  InterstitialAd? _interstitialAd;

  // TODO: replace this test ad unit with your own ad unit.
  final adUnitId = Platform.isAndroid
    ? 'ca-app-pub-3940256099942544/1033173712'
    : 'ca-app-pub-3940256099942544/4411468910';

  /// Loads an interstitial ad.
  void loadAd() {
    InterstitialAd.load(
        adUnitId: adUnitId,
        request: const AdRequest(),
        adLoadCallback: InterstitialAdLoadCallback(
          // 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('InterstitialAd failed to load: $error');
          },
        ));
  }
}

class InterstitialExampleState extends State<InterstitialExample> {
  InterstitialAd? _interstitialAd;

  // TODO: replace this test ad unit with your own ad unit.
  final adUnitId = Platform.isAndroid
    ? 'ca-app-pub-3940256099942544/1033173712'
    : 'ca-app-pub-3940256099942544/4411468910';

  /// Loads an interstitial ad.
  void loadAd() {
    InterstitialAd.load(
        adUnitId: adUnitId,
        request: const AdRequest(),
        adLoadCallback: InterstitialAdLoadCallback(
          // 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('InterstitialAd failed to load: $error');
          },
        ));
  }
}

_interstitiaAd.show();