iPad app pdf专家展示了似乎只有头盔的人群。 哪一类人口是这样吗? 我在 Apple果中找不到这方面的东西。 但这似乎是一个标准的统一要素。 还是习惯观点?
For a basic app with nonconsumable in-app purchases, has anyone figured out best practices for using SKPaymentQueue s restoreCompletedTransactions? Observations I know it s recommended to always ...