以编程方式确定Android应用是否已付款 [英] programmatically determine if android app has been paid

问题描述

我要在我的Android中实现Android LVL库代码。我想知道是否有任何方法可以在程序中确定Android应用程序是否已付款？应用程序。但我也想让用户先尝试一下这款应用，然后在喜欢的时候购买它。因此，如何确定应用程序是否已被购买并因此获得完全许可。 解决方案

如果您想让用户试用您的应用程序在购买之前首先发布一个有限的免费版本。 （受限于功能而不是时间）

然后发布付费应用程序。我会建议'推销'你的应用程序从免费的。即促进和鼓励从免费的升级，说它有更多的功能，更好的是，更好的..

然后，LVL只属于付费版本，而不是免费的。

I was wondering if there is any way to progammatically determine if the android app has been paid for?

I am going to implement the Android LVL library code in my app. But I also want to let the users first try out the app and then buy it if they like it. So how can I determine if the app has been bought and hence fully licensed.

解决方案

If you want to let users try your application out first before buying release a limited free version. (Limited by features not time)

Then also release a paid application. I would recommend 'up selling' your application from the free one. i.e. promote and encourage the upgrade from the free one by saying it has more features, better this, better that..

The LVL then only belongs in the paid version, not the free one.

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