Working querySkuDetails for marketbilling

IabHelper.java

    int querySkuDetails(String itemType, Inventory inv, List<String> moreSkus) 
                                throws RemoteException, JSONException {
        logDebug("Querying SKU details.");
        ArrayList<String> skuList = new ArrayList<String>();
        skuList.addAll(inv.getAllOwnedSkus(itemType));
        if (moreSkus != null) {
            for (String sku : moreSkus) {
                if (!skuList.contains(sku)) {
                    skuList.add(sku);
                }
            }
        }
        
        if (skuList.size() == 0) {
            logDebug("queryPrices: nothing to do because there are no SKUs.");
            return BILLING_RESPONSE_RESULT_OK;
        }

        // Split the sku list in blocks of no more than 20 elements.
        ArrayList<ArrayList<String>> packs = new ArrayList<ArrayList<String>>();
        ArrayList<String> tempList;
        int n = skuList.size() / 20;
        int mod = skuList.size() % 20;
        for (int i = 0 ; i < n ; i++) {
        	tempList = new ArrayList<String>();
        	for (String s : skuList.subList(i*20, i*20+20)) {
        		tempList.add(s);
        	}
        	packs.add(tempList);
        }
        if (mod != 0) {
        	tempList = new ArrayList<String>();
        	for (String s : skuList.subList(n*20, n*20+mod)) {
        		tempList.add(s);
        	}
        	packs.add(tempList);
        }

        for (ArrayList<String> skuPartList : packs) {
            Bundle querySkus = new Bundle();
            querySkus.putStringArrayList(GET_SKU_DETAILS_ITEM_LIST, skuPartList);
            Bundle skuDetails = mService.getSkuDetails(3, mContext.getPackageName(),
                    itemType, querySkus);
            
            if (!skuDetails.containsKey(RESPONSE_GET_SKU_DETAILS_LIST)) {
            	int response = getResponseCodeFromBundle(skuDetails);
                if (response != BILLING_RESPONSE_RESULT_OK) {
                    logDebug("getSkuDetails() failed: " + getResponseDesc(response));
                    return response;
                }
                else {
                	logError("getSkuDetails() returned a bundle with neither an error nor a detail list.");
                    return IABHELPER_BAD_RESPONSE;
                }
            }

            ArrayList<String> responseList = skuDetails.getStringArrayList(
                    RESPONSE_GET_SKU_DETAILS_LIST);

            for (String thisResponse : responseList) {
                SkuDetails d = new SkuDetails(itemType, thisResponse);
                logDebug("Got sku details: " + d);
                inv.addSkuDetails(d);
            }
        }
        
        return BILLING_RESPONSE_RESULT_OK;
    }