ios - 检查用户在应用内购买中购买的产品

Question

我用过this教程并想知道如何检查其中用户刚刚购买的产品。我在教程的最后看到:

The resources zip for this tutorial contain images for all of the the comics, so if you’re so inclined you can wrap it up by showing the comic in a new view controller when a purchased row is tapped! If you want to do this, you can just check if the productIdentifier is in the purchasedProducts array of the InAppRageIAPHelper before allowing the user access to the content.

但是我测试了但没有成功。一世
想知道你是否知道该怎么做。谢谢你的时间!

Answer 1

一种方法是使用 NSUserDefaults 存储购买的标识符。

[[NSUserDefaults standardUserDefaults] setBool:YES forKey:@"YourIdentifier"];
 [[NSUserDefaults standardUserDefaults] synchronize];

然后，您可以检查应用程序何时启动已购买了哪些标识符

[[NSUserDefaults standardUserDefaults] boolForKey:@"YourIdentifier"];