c# - 已为应用付费的用户的应用内购买

Question

我和我的团队开发了一款著名的应用程序(适用于 WP7，也在开发 WP8)。它有很多用户为该应用程序付费。我们现在要开始使用应用内购买。我的问题是，最初为该应用付费的用户是否必须再次重新购买应用内购买？ (-我不希望如此...)

感谢您的帮助!

Answer 1

我收到了 Microsoft 支持部门的回复。这是答案:

If you publish the app under the same product id, what you can do is use the store receipt to check the purchase date of the app and if your customer purchased it before a certain date, unlock all features. Otherwise, they must use the in-app purchase function to gain full access.

Receipt documentation is below: http://msdn.microsoft.com/en-us/library/windowsphone/develop/windows.applicationmodel.store.currentapp.getappreceiptasync.aspx

One issue that you could run into, however, is WP7 apps do not support in-app purchases so this could present a problem if you wish to continue to support WP7 with the same product id.

希望这对你也有帮助。