android: Inapp billing: Error response: 7:Item Already Owned

Question

I am learning to implement an in-app billing for my app such that people can for example, donate $ when press the donate button.

The user is allowed to donate more than

Answer 1

You purchased "android.test.purchased" but did not consume it. However, if you forgot to consume it immediately, it is not easy to consume it again. We can wait for 14 days. The fake purchase will be cleared automatically. But it is not acceptable.

I spent a lot of time finding the solution:

Add this line to get debug info.

_iabHelper.enableDebugLogging(true, "TAG");

Run the app. In LogCat, you will see a json string like

{"packageName":"com.example","orderId":"transactionId.android.test.purchased","productId":"android.test.purchased","developerPayload":"123","purchaseTime":0,"purchaseState":0,"purchaseToken":"inapp:com.example:android.test.purchased"}

Consume it manually (Replace THAT_JSON_STRING with your json string)

    Purchase purchase;
    try {
        purchase = new Purchase("inapp", THAT_JSON_STRING, "");
        _iabHelper.consumeAsync(purchase, new OnConsumeFinishedListener() {

            @Override
            public void onConsumeFinished(Purchase purchase, IabResult result) {
                Log.d("TAG", "Result: " + result);
            }
        });
    } catch (JSONException e) {
        e.printStackTrace();
    }

_iabHelper is mHelper.