Indicates that the user has clicked on this ad. This is used for publisher metrics, and must be called in addition to any other events; this event is never inferred by the mediation library. For example, onAdLeftApplication(MediationInterstitialAdapter) would generally mean that the user has clicked on an ad, but onAdClicked(MediationInterstitialAdapter) must be called regardless.

Indicates that the ad control rendered something in full screen and is now transferring control back to the application. This may be the user returning from a different application.

Indicates that an ad request has failed along with the underlying cause. A failure may be an actual error or just a lack of fill.

Once an ad is requested, the adapter must report either success or failure. If no response is heard within a time limit, the mediation library may move on to another adapter, resulting in a potentially successful ad not being shown.

Indicates that the ad is causing the device to switch to a different application (such as a web browser). This must be called before the current application is put in the background.

Indicates that an ad has been requested and successfully received. Interstitials must wait for a show() call.

Once an ad is requested, the adapter must report either success or failure. If no response is heard within a time limit, the mediation library may move on to another adapter, resulting in a potentially successful ad not being shown.

From the point when this method is called until the adapter is destroyed, showInterstitial() should open the interstitial.

Indicates that the ad control is rendering something that is full screen. This may be an Activity, or it may be a precursor to switching to a different application.

Once this screen is dismissed, onAdClosed(MediationInterstitialAdapter) must be called.