Adding multiple products to productlist for queryProductDetailsAsync in android billing 5.0.0

Question

In the old android billing implementation you would build an sku list to query products:

List<String> skuList = new ArrayList<>();
        skuList.add(SKU_POTION);
        skuList.add(SKU_SWORD);
        skuList.add(SKU_BOW);
        SkuDetailsParams.Builder params = SkuDetailsParams.newBuilder();
        params.setSkusList(skuList).setType(BillingClient.SkuType.INAPP);

The new billing implementation is more involved, and appears to limit you to adding just one product to a query list:

ImmutableList<QueryProductDetailsParams.Product> productList = ImmutableList.from(QueryProductDetailsParams.Product.newBuilder()
                    .setProductId(SKU_POTION)
                    .setProductType(BillingClient.ProductType.INAPP)
                    .build());
    
            QueryProductDetailsParams params = QueryProductDetailsParams.newBuilder()
                    .setProductList(productList)
                    .build();
    
            billingClient.queryProductDetailsAsync(
            params,
            new ProductDetailsResponseListener() {
                public void onProductDetailsResponse(BillingResult billingResult, List<ProductDetails> productDetailsList) {
                    if (billingResult.getResponseCode() == BillingClient.BillingResponseCode.OK && productDetailsList != null) {
                        for (ProductDetails skuDetails : productDetailsList) {                    
                            mProductDetailsMap.put(skuDetails.getProductId(), skuDetails);                           
                        }
                    }
                   
                }
            }
    );

It makes you build the productList for the productDetailsList for the mProductDetailsMap that's needed to start the purchase flow:

puchasestring=SKU_POTION;
initiatePurchaseFlow(mProductDetailsMap.get(puchasestring));

How would I add multiple products to the productList that begins the implementation? I don't want to have to repeat the entire code segment for each item to add to the mProductDetailsMap, which is the Primitive Pete method I'm using for now.

Answer 1

For multiple products:

ImmutableList<QueryProductDetailsParams.Product> productList = ImmutableList.from(
QueryProductDetailsParams.Product.newBuilder()
                    .setProductId(SKU_POTION)
                    .setProductType(BillingClient.ProductType.INAPP)
                    .build(),
QueryProductDetailsParams.Product.newBuilder()
                    .setProductId(SKU_SWORD)
                    .setProductType(BillingClient.ProductType.INAPP)
                    .build(),
QueryProductDetailsParams.Product.newBuilder()
                    .setProductId(SKU_BOW)
                    .setProductType(BillingClient.ProductType.INAPP)
                    .build());