# Button Merchant Library

## Version
1.6.1

### Android JVM

## Documentation Links
- [ButtonMerchantLibrary](https://building.usebutton.com/button-merchant-android/latest/index.html)
- [ActivityReportingTask](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-activity-reporting-task/index.html)
- [ButtonMerchant](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-button-merchant/index.html)
- [AttributionTokenListener](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-button-merchant/-attribution-token-listener/index.html)
- [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)
- [Order](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-order/index.html)
- [LineItem](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-order/-line-item/index.html)
- [OrderListener](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-order-listener/index.html)
- [PostInstallIntentListener](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-post-install-intent-listener/index.html)
- [UserActivityListener](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant/-user-activity-listener/index.html)

### Exception Classes
- [ApplicationIdNotFoundException](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant.exception/-application-id-not-found-exception/index.html)
- [ButtonNetworkException](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant.exception/-button-network-exception/index.html)
- [HttpStatusException](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant.exception/-http-status-exception/index.html)
- [NetworkNotFoundException](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant.exception/-network-not-found-exception/index.html)

### Modules
- [ButtonUserActivity](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant.module/-button-user-activity/index.html)
- [Features](https://building.usebutton.com/button-merchant-android/latest/-button%20-merchant%20-library/com.usebutton.merchant.module/-features/index.html)

## setCategory

Function to set the category of the line item.

```kotlin
open fun setCategory(category: List<String>): Order.LineItem.Builder
```

The category of the line item is an ordered list of strings, starting with the topmost (or most general) category.