how to assign skpayment applicationusername
问题 can we assign skpayment applicationusername? When in app purchase is completed, I got a null applicationUsername in the SKPayment. How do I assign a value to SKPayment applicationUsername ? 回答1: You can't assign a value to the property of an SKPayment ; When you create the SKMutablePayment instance in order to submit the purchase request, your app can provide an opaque value that represents the application user id. This enables the iTunes store to detect irregular activity. Despite its name,