# InterstitialAd
Interstitial ad component. This is a native component at a higher layer than normal components. Each time the interstitial ad component is created, a new instance (interstitial ad instances on the Mini Program cannot be used across pages) is returned. Interstitial ads are hidden by default, and InterstitialAd.show() must be called to display them.
# Methods
# Promise InterstitialAd.show()
Displays an interstitial ad.
# InterstitialAd.onLoad(function callback)
Listens on the interstitial ad loading event.
# InterstitialAd.offLoad(function callback)
Un-listens on the interstitial ad loading event.
# InterstitialAd.onError(function callback)
Listens on the interstitial ad error event.
# InterstitialAd.offError(function callback)
Un-listens on the interstitial ad error event.
# InterstitialAd.onClose(function callback)
Listens on interstitial ad close event.
# InterstitialAd.offClose(function callback)
Un-listens on the interstitial ad close event.