在应用内购买Android问题时，Google Play未返回订单ID

Question

我已成功设法在Android中实施In-App Billing 我遇到的唯一问题是，当我使用restoreTransaction()方法要求Google将order id返回Signed Data时（购买状态）。 即使已购买该商品，它也会返回Null orders array 这是日志：

08-27 08:30:24.342: I/BillingService(17152): handleCommand() action: com.android.vending.billing.PURCHASE_STATE_CHANGED
08-27 08:30:24.342: I/BillingService(17152): purchaseStateChanged
08-27 08:30:24.342: I/class com.folio3.games.candymonster.billing.Security(17152): signedData: {"nonce":XXXXXXXXXXXXXXXXXXXXXXXXX,"orders":[]}
08-27 08:30:24.362: I/class com.folio3.games.candymonster.billing.Security(17152): signature: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX