GA4 - Android - Java - add_to_cart

// Products can be instrumented as an array of items that can be added to prescribed ecommerce events.

//Measure a product being added to a cart or by logging an add_to_cart event with the relevant products in an items array parameter.

// A pair of jeggings (product1)
Bundle itemJeggings = new Bundle();
itemJeggings.putString(FirebaseAnalytics.Param.ITEM_ID, "SKU_123");                     //Item ID (context-specific) (String).
itemJeggings.putString(FirebaseAnalytics.Param.ITEM_NAME, "jeggings");                  //Item Name (context-specific) (String).
itemJeggings.putString(FirebaseAnalytics.Param.ITEM_CATEGORY, "pants");                 //Item category (context-specific) (String).
itemJeggings.putString(FirebaseAnalytics.Param.ITEM_CATEGORY2, "sub-cat1");             //Item sub-category (context-specific) (String).
itemJeggings.putString(FirebaseAnalytics.Param.ITEM_CATEGORY3, "sub-cat2");             //Item sub-category (context-specific) (String).
itemJeggings.putString(FirebaseAnalytics.Param.ITEM_CATEGORY4, "sub-cat3");             //Item sub-category (context-specific) (String).
itemJeggings.putString(FirebaseAnalytics.Param.ITEM_CATEGORY5, "sub-cat4");             //Item sub-category (context-specific) (String).
itemJeggings.putString(FirebaseAnalytics.Param.ITEM_VARIANT, "black");                  //Item variant (String).
itemJeggings.putString(FirebaseAnalytics.Param.ITEM_BRAND, "Google");                   //Item brand. The parameter expects a string value
itemJeggings.putDouble(FirebaseAnalytics.Param.PRICE, 9.99);                            //Product price (double). Expecting a double value

Bundle itemJeggingsCart = new Bundle(itemJeggings);
itemJeggingsCart.putLong(FirebaseAnalytics.Param.QUANTITY, 2);                      //Product quantity (long). The parameter expects a long value

Bundle addToCartParams = new Bundle();
addToCartParams.putString(FirebaseAnalytics.Param.CURRENCY, "USD");
addToCartParams.putDouble(FirebaseAnalytics.Param.VALUE, 2 * 9.99);
addToCartParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
        new Parcelable[]{ itemJeggingsCart });

analytics.logEvent(FirebaseAnalytics.Event.ADD_TO_CART, addToCartParams);