showInterstitial method
✅ Normal interstitial trigger
Implementation
Future<void> showInterstitial(int counter) async {
if (!(admodel.isinterstitialenable ?? false)) return;
if ((admodel.iseveryads ?? false) ||
(counter > 0 && counter % (admodel.adTime ?? 2) == 0)) {
await _showPriorityInterstitial();
}
}