async void ShowInterstitial()
{
do
{
await Task.Delay(100);
} while (!adInterstitial.IsReady);
InvokeOnMainThread(() => adInterstitial.PresentFromRootViewController(navController));
}
public void Show(string adUnit)
{
_adInterstitial = new GADInterstitial(adUnit);
var request = GADRequest.Request;
_adInterstitial.AdReceived += (sender, args) =>
{
if (_adInterstitial.IsReady)
{
var window = UIApplication.SharedApplication.KeyWindow;
var vc = window.RootViewController;
while (vc.PresentedViewController != null)
{
vc = vc.PresentedViewController;
}
_adInterstitial.PresentFromRootViewController(vc);
}
};
_adInterstitial.LoadRequest(request);
}