i 假设您没有为按钮.pls 设置选择器,请确定您是否这样做(或) 您可能正在将选择器设定为返回零参数的方法。
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 ...