继续做in_app purchase:

先把官方的 sample 运行通了再做自己的实现

参考资料：http://developer.android.com/guide/market/billing/billing_integrate.html 来一步一步实现：

特别注意一点：

否则会显示：

the item not found

现在又显示：

今天发现，当我购买 play store 里面的应用时，也出出现这个问题，不知道为什么？

终于找到原因了： 我没有把item publish 只是save 了

Also, a test account can purchase an item in your product list only if the item is published. The application does not need to be published, but the item does need to be published.

Add items to the application's product list.

Make sure that you publish the items (the application can remain unpublished). SeeCreating a product listto learn how to do this.