iphone - 何时向用户收取应用内购买费用？

Question

用户什么时候为 iOS 应用内购买收费？

它在 addPayment 之间吗？和 paymentQueue:updatedTransactions:收到 SKPaymentTransactionStatePurchased，还是在调用 finishTransaction 之后？还是其他地方？

文档中是否明确提到了这一点？

Answer 1

我想你正在寻找这个。

SKPaymentTransaction A transaction is created for every payment added to the queue. Each transaction has properties that allow your application to determine the status of the transaction. When payment is collected, the transaction includes additional details about the successful transaction.

这里是: http://developer.apple.com/library/mac/#documentation/NetworkingInternet/Conceptual/StoreKitGuide/MakingaPurchase/MakingaPurchase.html#//apple_ref/doc/uid/TP40008267-CH3-SW1

看起来当您有一个 transactionReceipt 时付款就完成了。