Android In-App billing: catch “You already have a pending order for this item”

If a user 开发者_开发技巧tries to buy something twice, Android Market returns an error “You already have a pending order for this item”. I can handle this situation in application?

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From Android developer site:

http://developer.android.com/guide/market/billing/billing_integrate.html#billing-service

Important: If a user purchases a managed item, you must prevent the user from purchasing the item again while the original transaction is pending. If a user attempts to purchase a managed item twice, and the first transaction is still pending, Android Market will display an error to the user; however, Android Market will not send an error to your application notifying you that the second purchase request was canceled. This might cause your application to get stuck in a pending state while it waits for an IN_APP_NOTIFY message for the second purchase request.