showInterstitial method

Future<bool> showInterstitial()

Shows a preloaded interstitial ad.

Returns true if the ad was shown, false if skipped due to:

• Ad not loaded yet
• Frequency cap not elapsed
• No interstitial ID configured

After showing, automatically preloads the next interstitial.

Implementation

Future<bool> showInterstitial() async {
  _assertInitialized();
  if (_config.interstitialId == null) return false;
  if (_interstitialState != AdState.ready) return false;
  if (!_interstitialFrequencyCap.canShow) return false;

  _interstitialState = AdState.showing;
  final adUnitId = _config.interstitialId!.resolved(
    adType: AdType.interstitial,
  );

  // In production, this would call interstitialAd.show()
  _interstitialFrequencyCap.recordImpression();
  emitEvent(AdEvent(type: AdEventType.shown, adUnitId: adUnitId));

  _interstitialState = AdState.idle;
  _activeAdCount--;

  // Auto-preload next
  unawaited(loadInterstitial());
  return true;
}