InAppPurchase_Code10.java

private void buyStreaming() {
    mHelper.launchPurchaseFlow(this, SKU_STREAMING, 1, new IabHelper.OnIabPurchaseFinishedListener() {
        @Override
        public void onIabPurchaseFinished(IabResult result, Purchase info) {
            if (result.isFailure()) {
                Toast.makeText(DetailActivity.this, R.string.purchasing_error, Toast.LENGTH_SHORT).show();
                return;
            } else if (info.getSku().equals(SKU_STREAMING)) {
                openPlayer();
            }
        }
    });
}