Android billing exception

Question

I am testing my billing and I got this exception:

java.lang.IllegalStateException: Can\'t start async operation (launchPurchaseFlow) because another async op         


        

Answer 1

The IabHelper will only allow a single asynchronous query to be executed at a time. You need to implement onActivityResult() and pass the parameters into the handleActivityResult() method of the IabHelper.

The in-app billing sample code implements the method like this:

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    Log.d(TAG, "onActivityResult(" + requestCode + "," + resultCode + "," + data);

    // Pass on the activity result to the helper for handling
    if (!mHelper.handleActivityResult(requestCode, resultCode, data)) {
        // not handled, so handle it ourselves (here's where you'd
        // perform any handling of activity results not related to in-app
        // billing...
        super.onActivityResult(requestCode, resultCode, data);
    }
    else {
        Log.d(TAG, "onActivityResult handled by IABUtil.");
    }
}