I have very similar code in my app. The only significant difference is that I have "PRODUCT_MODE" instead of "ONE_D_MODE".
Follow the sample code provided in the project under android-integration. Just call the methods in this class rather than debug your own version. I think using requestCode 0 is most likely to be the problem, but I'm guessing.
It is supposed to be a sort of unique ID for the request. But 0 might be used by something else and you're really hearing a response to something else.
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