iOS内置付费开发笔记三(请求付款)

接上一篇笔记

请求付款 Requesting Payment

当用户点击购买按钮以后，会向App Store发起一个购买操作。下图是Apple文档中的示意图(图中橙色部分):

Requesting Payment

第一步: 创建Payment Request

SKProduct *product = <# Product returned by a products request #>; 
SKMutablePayment *payment = [SKMutablePayment paymentWithProduct:product];
payment.quantity = 2; //数量

第二步: 提交Payment Request

[[SKPaymentQueue defaultQueue] addPayment:payment];