android - In app purchase: signature is ""

Question

In purchaseStateChanged() I received signature as "" String, so I received bad response from our server, because it cannot verify the billing.

Why the signature is ""?

Answer 1

您是否正在使用测试产品 ( android.test.purchased) 进行购买？测试产品永远不会向您发回签名以进行验证 - 只有购买实际产品才会。