showAdIfAvailable method

void showAdIfAvailable({ VoidCallback? onComplete, })

Shows the ad, if one exists and is not already being shown.

If the previously cached ad has expired, this just loads and caches a new ad.

Implementation

void showAdIfAvailable({VoidCallback? onComplete}) {
  if (skipNextAppOpen) {
    skipNextAppOpen = false;
    if (kDebugMode) {
      print('Skipping AppOpenAd display because skipNextAppOpen is set.');
    }
    onComplete?.call();
    return;
  }
  if (!isAdAvailable) {
    if (kDebugMode) {
      print('Tried to show ad before available.');
    }
    loadAd();
    onComplete?.call();
    return;
  }
  if (_isShowingAd) {
    if (kDebugMode) {
      print('Tried to show ad while already showing an ad.');
    }
    onComplete?.call();
    return;
  }
  if (_appOpenLoadTime != null &&
      DateTime.now().subtract(maxCacheDuration).isAfter(_appOpenLoadTime!)) {
    if (kDebugMode) {
      print('Maximum cache duration exceeded. Loading another ad.');
    }
    _appOpenAd!.dispose();
    _appOpenAd = null;
    loadAd();
    onComplete?.call();
    return;
  }
  // Set the fullScreenContentCallback and show the ad.
  _appOpenAd!.fullScreenContentCallback = FullScreenContentCallback(
    onAdShowedFullScreenContent: (ad) {
      _isShowingAd = true;
      skipNextAppOpen = true;
      if (kDebugMode) {
        print('$ad onAdShowedFullScreenContent');
      }
    },
    onAdFailedToShowFullScreenContent: (ad, error) {
      if (kDebugMode) {
        print('$ad onAdFailedToShowFullScreenContent: $error');
      }
      _isShowingAd = false;
      ad.dispose();
      _appOpenAd = null;
      onComplete?.call();
    },
    onAdDismissedFullScreenContent: (ad) {
      if (kDebugMode) {
        print('$ad onAdDismissedFullScreenContent');
      }
      _isShowingAd = false;
      skipNextAppOpen = true;
      ad.dispose();
      _appOpenAd = null;
      loadAd();
      onComplete?.call();
    },
  );
  _appOpenAd!.show();
}