public interface

# MediationBannerListener

com.google.android.gms.ads.mediation.MediationBannerListener

## Class Overview

Callback for an adapter to communicate back to the mediation library. Events must be communicated back for the mediation library to properly manage ad flow.

The `onAdClicked(MediationBannerAdapter)` method in particular is required for metrics to operate correctly.

## Summary

Public Methods
abstract void | onAdClicked(MediationBannerAdapter adapter) Indicates that the user has clicked on this ad.
abstract void | onAdClosed(MediationBannerAdapter adapter) Indicates that the ad control rendered something in full screen and is now transferring control back to the application.
abstract void | onAdFailedToLoad(MediationBannerAdapter adapter, int error) Indicates that an ad request has failed along with the underlying cause.
abstract void | onAdLeftApplication(MediationBannerAdapter adapter) Indicates that the ad is causing the device to switch to a different application (such as a web browser).
abstract void | onAdLoaded(MediationBannerAdapter adapter) Indicates that an ad has been requested and successfully received.
abstract void | onAdOpened(MediationBannerAdapter adapter) Indicates that the ad control is rendering something that is full screen.

## Public Methods

#### public abstract void onAdClicked (MediationBannerAdapter adapter)

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(MediationBannerAdapter)` would generally mean that the user has clicked on an ad, but `onAdClicked(MediationBannerAdapter)` must be called regardless.

##### Parameters

adapter | The mediation adapter which raised the event.

#### public abstract void onAdClosed (MediationBannerAdapter adapter)

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.

##### Parameters

adapter | The mediation adapter which raised the event.

##### See Also

- `onAdOpened(MediationBannerAdapter)`

#### public abstract void onAdFailedToLoad (MediationBannerAdapter adapter, int error)

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.

##### Parameters

adapter | The mediation adapter which raised the event.
error | An error code detailing the cause of the failure.

##### See Also

- `onAdLoaded(MediationBannerAdapter)`

#### public abstract void onAdLeftApplication (MediationBannerAdapter adapter)

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.

##### Parameters

adapter | The mediation adapter which raised the event.

#### public abstract void onAdLoaded (MediationBannerAdapter adapter)

Indicates that an ad has been requested and successfully received. Banner ads may be automatically displayed after this method has been called.

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, `getBannerView()` must return a `View` object; `null` is not permitted. The same `View` object must be returned on every request.

##### Parameters

adapter | The mediation adapter which raised the event.

##### See Also

- `onAdFailedToLoad(MediationBannerAdapter, int)`

#### public abstract void onAdOpened (MediationBannerAdapter adapter)

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(MediationBannerAdapter)` must be called.

##### Parameters

adapter | The mediation adapter which raised the event.