InAppPurchase_code5.java

private void isUserBuyFullVersion() {
    if (!isCafeInstalled()) {
        Toast.makeText(this, R.string.cafebazaar_isnot_installed_error, Toast.LENGTH_SHORT).show();
        return;
    }

    mHelper.queryInventoryAsync(new IabHelper.QueryInventoryFinishedListener() {
        public void onQueryInventoryFinished(IabResult result, Inventory inventory) {
            if (result.isFailure()) {
                Toast.makeText(DetailActivity.this, R.string.query_inventory_error, Toast.LENGTH_SHORT).show();
                return;
            }
            if (inventory.hasPurchase(SKU_FULL_VERSION)) {
                bookmarkMovie();
            } else {
                buyFullVersion();
            }
        }
    });
}