IOS如何获得已购买产品的清单？ [英] Ios how to get a list of already purchased products?

问题描述

我正在构建一个使用In app buy的应用。我正在使用非消费类产品。

I'm building an app that uses In app purchase. I'm using non-consumable product types.

一切正常（设置产品，购买......）。

Everything works ok (setting up products, buying...).

我想要验证用户已经购买了哪些产品（重新安装应用程序或更换设备时）？

What I would like to do is to verify which products a user had already purchased (when reinstalling app or changing device)?

这可能吗？

谢谢

推荐答案

参见恢复交易应用程序内购买指南的部分。以下是它具体说明的内容：

See the Restoring Transactions section of the In-App Purchase guide. Here is what it specifically says:

Store Kit提供内置功能来恢复
非消耗品，auto的交易 - 可更新订阅和免费
订阅。要恢复交易，您的应用程序会调用
付款队列 restoreCompletedTransactions 方法。支付队列
向App Store发送请求以恢复转换。在
返回时，App Store会为之前完成的每个
交易生成一个新的恢复交易。

Store Kit provides built-in functionality to restore transactions for non-consumable products, auto-renewable subscriptions and free subscriptions. To restore transactions, your application calls the payment queue’s restoreCompletedTransactions method. The payment queue sends a request to the App Store to restore the transctions. In return, the App Store generates a new restore transaction for each transaction that was previously completed.

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