partial void btnAudience_TouchUpInside(UIButton sender)
{
if (interstitialAd == null || !interstitialAd.IsAdValid)
{
// Ad not ready to present.
lblInterstitalStatusLabel.Text = "Ad not loaded. Click load to request an ad.";
}
else
{
lblInterstitalStatusLabel.Text = string.Empty;
// Ad is ready, present it!
interstitialAd.ShowAdFromRootViewController(this);
}
}