# Class Index # Class Index These are the API classes. See all[API packages](https://developer.android.com/reference/com/android/billingclient/packages). ## A |--------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [AccountIdentifiers](https://developer.android.com/reference/com/android/billingclient/api/AccountIdentifiers) | Account identifiers that were specified when the purchase was made. | | [AcknowledgePurchaseParams](https://developer.android.com/reference/com/android/billingclient/api/AcknowledgePurchaseParams) | Parameters to acknowledge a purchase. | | [AcknowledgePurchaseParams.Builder](https://developer.android.com/reference/com/android/billingclient/api/AcknowledgePurchaseParams.Builder) | Helps construct[AcknowledgePurchaseParams](https://developer.android.com/reference/com/android/billingclient/api/AcknowledgePurchaseParams)that are used to acknowledge a purchase. | | [AcknowledgePurchaseResponseListener](https://developer.android.com/reference/com/android/billingclient/api/AcknowledgePurchaseResponseListener) | Listener for the result of an acknowledge purchase request. | | [AlternativeBillingListener](https://developer.android.com/reference/com/android/billingclient/api/AlternativeBillingListener) | *This interface is deprecated. Use[BillingClient.Builder.enableUserChoiceBilling(UserChoiceBillingListener)](https://developer.android.com/reference/com/android/billingclient/api/BillingClient.Builder#enableUserChoiceBilling(com.android.billingclient.api.UserChoiceBillingListener))with[UserChoiceBillingListener](https://developer.android.com/reference/com/android/billingclient/api/UserChoiceBillingListener)instead.* Included in documentation by the annotations: @Annotations.AlternativeBilling | | [AlternativeBillingOnlyAvailabilityListener](https://developer.android.com/reference/com/android/billingclient/api/AlternativeBillingOnlyAvailabilityListener) | Listener for the result of the[BillingClient.isAlternativeBillingOnlyAvailableAsync(AlternativeBillingOnlyAvailabilityListener)](https://developer.android.com/reference/com/android/billingclient/api/BillingClient#isAlternativeBillingOnlyAvailableAsync(com.android.billingclient.api.AlternativeBillingOnlyAvailabilityListener))API. | | [AlternativeBillingOnlyInformationDialogListener](https://developer.android.com/reference/com/android/billingclient/api/AlternativeBillingOnlyInformationDialogListener) | Listener for the result of the[BillingClient.showAlternativeBillingOnlyInformationDialog(Activity, AlternativeBillingOnlyInformationDialogListener)](https://developer.android.com/reference/com/android/billingclient/api/BillingClient#showAlternativeBillingOnlyInformationDialog(android.app.Activity,%20com.android.billingclient.api.AlternativeBillingOnlyInformationDialogListener))API. | | [AlternativeBillingOnlyReportingDetails](https://developer.android.com/reference/com/android/billingclient/api/AlternativeBillingOnlyReportingDetails) | The details used to report transactions made via alternative billing without user choice to use Google Play billing. | | [AlternativeBillingOnlyReportingDetailsListener](https://developer.android.com/reference/com/android/billingclient/api/AlternativeBillingOnlyReportingDetailsListener) | Listener for the result of the[BillingClient.createAlternativeBillingOnlyReportingDetailsAsync(AlternativeBillingOnlyReportingDetailsListener)](https://developer.android.com/reference/com/android/billingclient/api/BillingClient#createAlternativeBillingOnlyReportingDetailsAsync(com.android.billingclient.api.AlternativeBillingOnlyReportingDetailsListener))API. | | [AlternativeChoiceDetails](https://developer.android.com/reference/com/android/billingclient/api/AlternativeChoiceDetails) | *This class is deprecated. Use[BillingClient.Builder.enableUserChoiceBilling(UserChoiceBillingListener)](https://developer.android.com/reference/com/android/billingclient/api/BillingClient.Builder#enableUserChoiceBilling(com.android.billingclient.api.UserChoiceBillingListener))with[UserChoiceBillingListener](https://developer.android.com/reference/com/android/billingclient/api/UserChoiceBillingListener)and[UserChoiceDetails](https://developer.android.com/reference/com/android/billingclient/api/UserChoiceDetails)in the listener callback instead.* Included in documentation by the annotations: @Annotations.AlternativeBilling | | [AlternativeChoiceDetails.Product](https://developer.android.com/reference/com/android/billingclient/api/AlternativeChoiceDetails.Product) | Details about a product being purchased.Included in documentation by the annotations: @Annotations.AlternativeBilling | ## B |------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [BillingClient](https://developer.android.com/reference/com/android/billingclient/api/BillingClient) | Main interface for communication between the library and user application code. | | [BillingClient.BillingResponseCode](https://developer.android.com/reference/com/android/billingclient/api/BillingClient.BillingResponseCode) | Possible response codes. | | [BillingClient.Builder](https://developer.android.com/reference/com/android/billingclient/api/BillingClient.Builder) | Builder to configure and create a[BillingClient](https://developer.android.com/reference/com/android/billingclient/api/BillingClient)instance. | | [BillingClient.ConnectionState](https://developer.android.com/reference/com/android/billingclient/api/BillingClient.ConnectionState) | Connection state of billing client. | | [BillingClient.FeatureType](https://developer.android.com/reference/com/android/billingclient/api/BillingClient.FeatureType) | Features/capabilities supported by[BillingClient.isFeatureSupported(String)](https://developer.android.com/reference/com/android/billingclient/api/BillingClient#isFeatureSupported(java.lang.String)). | | [BillingClient.ProductType](https://developer.android.com/reference/com/android/billingclient/api/BillingClient.ProductType) | Supported Product types. | | [BillingClient.SkuType](https://developer.android.com/reference/com/android/billingclient/api/BillingClient.SkuType) | *This @interface is deprecated. Use[BillingClient.ProductType](https://developer.android.com/reference/com/android/billingclient/api/BillingClient.ProductType)instead.* | | [BillingClientStateListener](https://developer.android.com/reference/com/android/billingclient/api/BillingClientStateListener) | Callback for setup process. | | [BillingConfig](https://developer.android.com/reference/com/android/billingclient/api/BillingConfig) | BillingConfig stores configuration used to perform billing operations. | | [BillingConfigResponseListener](https://developer.android.com/reference/com/android/billingclient/api/BillingConfigResponseListener) | Listener for the result of the[BillingClient.getBillingConfigAsync(GetBillingConfigParams, BillingConfigResponseListener)](https://developer.android.com/reference/com/android/billingclient/api/BillingClient#getBillingConfigAsync(com.android.billingclient.api.GetBillingConfigParams,%20com.android.billingclient.api.BillingConfigResponseListener))API. | | [BillingFlowParams](https://developer.android.com/reference/com/android/billingclient/api/BillingFlowParams) | Parameters to initiate a purchase flow. | | [BillingFlowParams.Builder](https://developer.android.com/reference/com/android/billingclient/api/BillingFlowParams.Builder) | Helps to construct[BillingFlowParams](https://developer.android.com/reference/com/android/billingclient/api/BillingFlowParams)that are used to initiate a purchase flow. | | [BillingFlowParams.ProductDetailsParams](https://developer.android.com/reference/com/android/billingclient/api/BillingFlowParams.ProductDetailsParams) | Params that describe the product to be purchased and the offer to purchase with. | | [BillingFlowParams.ProductDetailsParams.Builder](https://developer.android.com/reference/com/android/billingclient/api/BillingFlowParams.ProductDetailsParams.Builder) | Helps to construct a[BillingFlowParams.ProductDetailsParams](https://developer.android.com/reference/com/android/billingclient/api/BillingFlowParams.ProductDetailsParams). | | [BillingFlowParams.ProrationMode](https://developer.android.com/reference/com/android/billingclient/api/BillingFlowParams.ProrationMode) | *This @interface is deprecated. use[BillingFlowParams.SubscriptionUpdateParams.ReplacementMode](https://developer.android.com/reference/com/android/billingclient/api/BillingFlowParams.SubscriptionUpdateParams.ReplacementMode)instead.* | | [BillingFlowParams.SubscriptionUpdateParams](https://developer.android.com/reference/com/android/billingclient/api/BillingFlowParams.SubscriptionUpdateParams) | Params that describe a subscription update. | | [BillingFlowParams.SubscriptionUpdateParams.Builder](https://developer.android.com/reference/com/android/billingclient/api/BillingFlowParams.SubscriptionUpdateParams.Builder) | Helps to construct[BillingFlowParams.SubscriptionUpdateParams](https://developer.android.com/reference/com/android/billingclient/api/BillingFlowParams.SubscriptionUpdateParams). | | [BillingFlowParams.SubscriptionUpdateParams.ReplacementMode](https://developer.android.com/reference/com/android/billingclient/api/BillingFlowParams.SubscriptionUpdateParams.ReplacementMode) | Supported replacement modes to replace an existing subscription with a new one. | | [BillingResult](https://developer.android.com/reference/com/android/billingclient/api/BillingResult) | Params containing the response code and the debug message from In-app Billing API response. | | [BillingResult.Builder](https://developer.android.com/reference/com/android/billingclient/api/BillingResult.Builder) | Helps to construct[BillingResult](https://developer.android.com/reference/com/android/billingclient/api/BillingResult)that are used to return response from In-app Billing API. | ## C |--------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------| | [ConsumeParams](https://developer.android.com/reference/com/android/billingclient/api/ConsumeParams) | Parameters to consume a purchase. | | [ConsumeParams.Builder](https://developer.android.com/reference/com/android/billingclient/api/ConsumeParams.Builder) | Helps construct[ConsumeParams](https://developer.android.com/reference/com/android/billingclient/api/ConsumeParams)that are used to consume a purchase. | | [ConsumeResponseListener](https://developer.android.com/reference/com/android/billingclient/api/ConsumeResponseListener) | Callback that notifies when a consumption operation finishes. | ## G |----------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [GetBillingConfigParams](https://developer.android.com/reference/com/android/billingclient/api/GetBillingConfigParams) | Parameters for get billing config flow[BillingClient.getBillingConfigAsync(GetBillingConfigParams, BillingConfigResponseListener)](https://developer.android.com/reference/com/android/billingclient/api/BillingClient#getBillingConfigAsync(com.android.billingclient.api.GetBillingConfigParams,%20com.android.billingclient.api.BillingConfigResponseListener)). | | [GetBillingConfigParams.Builder](https://developer.android.com/reference/com/android/billingclient/api/GetBillingConfigParams.Builder) | Helps construct[GetBillingConfigParams](https://developer.android.com/reference/com/android/billingclient/api/GetBillingConfigParams). | ## I |------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------| | [InAppMessageParams](https://developer.android.com/reference/com/android/billingclient/api/InAppMessageParams) | Parameters for in-app messaging. | | [InAppMessageParams.Builder](https://developer.android.com/reference/com/android/billingclient/api/InAppMessageParams.Builder) | Helps construct[InAppMessageParams](https://developer.android.com/reference/com/android/billingclient/api/InAppMessageParams). | | [InAppMessageParams.InAppMessageCategoryId](https://developer.android.com/reference/com/android/billingclient/api/InAppMessageParams.InAppMessageCategoryId) | A high-level category of the in-app message. | | [InAppMessageResponseListener](https://developer.android.com/reference/com/android/billingclient/api/InAppMessageResponseListener) | Listener for the result of the in-app messaging flow. | | [InAppMessageResult](https://developer.android.com/reference/com/android/billingclient/api/InAppMessageResult) | Results related to in-app messaging. | | [InAppMessageResult.InAppMessageResponseCode](https://developer.android.com/reference/com/android/billingclient/api/InAppMessageResult.InAppMessageResponseCode) | Possible response codes. | ## P |----------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [ProductDetails](https://developer.android.com/reference/com/android/billingclient/api/ProductDetails) | Represents the details of a one time or subscription product. | | [ProductDetails.OneTimePurchaseOfferDetails](https://developer.android.com/reference/com/android/billingclient/api/ProductDetails.OneTimePurchaseOfferDetails) | Represents the offer details to buy an one-time purchase product. | | [ProductDetails.PricingPhase](https://developer.android.com/reference/com/android/billingclient/api/ProductDetails.PricingPhase) | Represents a pricing phase, describing how a user pays at a point in time. | | [ProductDetails.PricingPhases](https://developer.android.com/reference/com/android/billingclient/api/ProductDetails.PricingPhases) | Pricing phases for purchasing an item through a offer. | | [ProductDetails.RecurrenceMode](https://developer.android.com/reference/com/android/billingclient/api/ProductDetails.RecurrenceMode) | Recurrence mode of the pricing phase. | | [ProductDetails.SubscriptionOfferDetails](https://developer.android.com/reference/com/android/billingclient/api/ProductDetails.SubscriptionOfferDetails) | Represents the available purchase plans to buy a subscription product. | | [ProductDetailsResponseListener](https://developer.android.com/reference/com/android/billingclient/api/ProductDetailsResponseListener) | Listener to a result of product details query. | | [Purchase](https://developer.android.com/reference/com/android/billingclient/api/Purchase) | Represents an in-app billing purchase. | | [Purchase.PurchaseState](https://developer.android.com/reference/com/android/billingclient/api/Purchase.PurchaseState) | Possible purchase states. | | [PurchaseHistoryRecord](https://developer.android.com/reference/com/android/billingclient/api/PurchaseHistoryRecord) | Represents an in-app billing purchase history record. | | [PurchaseHistoryResponseListener](https://developer.android.com/reference/com/android/billingclient/api/PurchaseHistoryResponseListener) | Listener to a result of purchase history query. | | [PurchasesResponseListener](https://developer.android.com/reference/com/android/billingclient/api/PurchasesResponseListener) | Listener to a result of purchases query. | | [PurchasesUpdatedListener](https://developer.android.com/reference/com/android/billingclient/api/PurchasesUpdatedListener) | Listener interface for purchase updates which happen when, for example, the user buys something within the app or by initiating a purchase from Google Play Store. | ## Q |--------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [QueryProductDetailsParams](https://developer.android.com/reference/com/android/billingclient/api/QueryProductDetailsParams) | Parameters to initiate a query for Product details[BillingClient.queryProductDetailsAsync(QueryProductDetailsParams, ProductDetailsResponseListener)](https://developer.android.com/reference/com/android/billingclient/api/BillingClient#queryProductDetailsAsync(com.android.billingclient.api.QueryProductDetailsParams,%20com.android.billingclient.api.ProductDetailsResponseListener)). | | [QueryProductDetailsParams.Builder](https://developer.android.com/reference/com/android/billingclient/api/QueryProductDetailsParams.Builder) | Helps construct[QueryProductDetailsParams](https://developer.android.com/reference/com/android/billingclient/api/QueryProductDetailsParams)required to query[ProductDetails](https://developer.android.com/reference/com/android/billingclient/api/ProductDetails). | | [QueryProductDetailsParams.Product](https://developer.android.com/reference/com/android/billingclient/api/QueryProductDetailsParams.Product) | A Product identifier used for querying product details. | | [QueryProductDetailsParams.Product.Builder](https://developer.android.com/reference/com/android/billingclient/api/QueryProductDetailsParams.Product.Builder) | Builder that helps construct[QueryProductDetailsParams.Product](https://developer.android.com/reference/com/android/billingclient/api/QueryProductDetailsParams.Product). | | [QueryPurchaseHistoryParams](https://developer.android.com/reference/com/android/billingclient/api/QueryPurchaseHistoryParams) | Parameters to initiate a query for purchase history. | | [QueryPurchaseHistoryParams.Builder](https://developer.android.com/reference/com/android/billingclient/api/QueryPurchaseHistoryParams.Builder) | Helps construct[QueryPurchaseHistoryParams](https://developer.android.com/reference/com/android/billingclient/api/QueryPurchaseHistoryParams)required to query purchase history. | | [QueryPurchasesParams](https://developer.android.com/reference/com/android/billingclient/api/QueryPurchasesParams) | Parameters to initiate a query for purchases. | | [QueryPurchasesParams.Builder](https://developer.android.com/reference/com/android/billingclient/api/QueryPurchasesParams.Builder) | Helps construct[QueryPurchasesParams](https://developer.android.com/reference/com/android/billingclient/api/QueryPurchasesParams)required to query purchases. | ## S |--------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [SkuDetails](https://developer.android.com/reference/com/android/billingclient/api/SkuDetails) | *This class is deprecated. Use[BillingClient.queryProductDetailsAsync(QueryProductDetailsParams, ProductDetailsResponseListener)](https://developer.android.com/reference/com/android/billingclient/api/BillingClient#queryProductDetailsAsync(com.android.billingclient.api.QueryProductDetailsParams,%20com.android.billingclient.api.ProductDetailsResponseListener))instead* | | [SkuDetailsParams](https://developer.android.com/reference/com/android/billingclient/api/SkuDetailsParams) | *This class is deprecated. Use[BillingClient.queryProductDetailsAsync(QueryProductDetailsParams, ProductDetailsResponseListener)](https://developer.android.com/reference/com/android/billingclient/api/BillingClient#queryProductDetailsAsync(com.android.billingclient.api.QueryProductDetailsParams,%20com.android.billingclient.api.ProductDetailsResponseListener))instead* | | [SkuDetailsParams.Builder](https://developer.android.com/reference/com/android/billingclient/api/SkuDetailsParams.Builder) | Helps to construct[SkuDetailsParams](https://developer.android.com/reference/com/android/billingclient/api/SkuDetailsParams)that are used to query for SKU details. | | [SkuDetailsResponseListener](https://developer.android.com/reference/com/android/billingclient/api/SkuDetailsResponseListener) | *This interface is deprecated. Use[BillingClient.queryProductDetailsAsync(QueryProductDetailsParams, ProductDetailsResponseListener)](https://developer.android.com/reference/com/android/billingclient/api/BillingClient#queryProductDetailsAsync(com.android.billingclient.api.QueryProductDetailsParams,%20com.android.billingclient.api.ProductDetailsResponseListener))instead* | ## U |------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------| | [UserChoiceBillingListener](https://developer.android.com/reference/com/android/billingclient/api/UserChoiceBillingListener) | Listener interface for the developer-managed alternative billing flow, when it is chosen by the user when initiating a purchase. | | [UserChoiceDetails](https://developer.android.com/reference/com/android/billingclient/api/UserChoiceDetails) | Details related to a user's choice of alternative billing. | | [UserChoiceDetails.Product](https://developer.android.com/reference/com/android/billingclient/api/UserChoiceDetails.Product) | Details about a product being purchased. |