# Package-level declarations

An open source client library for Button merchants.

## Types

### [ActivityReportingTask](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-activity-reporting-task/index.html)

open class [ActivityReportingTask](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-activity-reporting-task/index.html) : Task<T>

Asynchronous task used to report user activity to Button.

### [ButtonMerchant](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-button-merchant/index.html)

class [ButtonMerchant](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-button-merchant/index.html)

Primary entry point for the Button merchant library.

### [ButtonProduct](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-button-product/index.html)

open class [ButtonProduct](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-button-product/index.html) : [ButtonProductCompatible](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-button-product-compatible/index.html)

A concrete implementation of the [ButtonProductCompatible](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-button-product-compatible/index.html) interface.

### [ButtonProductCompatible](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-button-product-compatible/index.html)

interface [ButtonProductCompatible](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-button-product-compatible/index.html)

An interface that defines the product properties that may be provided when reporting user activity.

### [Order](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-order/index.html)

open class [Order](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-order/index.html)

Represents an order placed by the user to be reported using [reportOrder](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-button-merchant/report-order.html)

### [OrderListener](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-order-listener/index.html)

interface [OrderListener](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-order-listener/index.html)

Callbacks for report order

### [PostInstallIntentListener](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-post-install-intent-listener/index.html)

interface [PostInstallIntentListener](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-post-install-intent-listener/index.html)

Callbacks for post-install intent handler.

### [UserActivityListener](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-user-activity-listener/index.html)

interface [UserActivityListener](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-user-activity-listener/index.html)

Callbacks for tracking user activity.