Enhancing Android Checkout with Dynamic Callbacks in Google Pay- Google Developers Blog

What this post added

Introduces dynamic callbacks (`onPaymentDataChanged`, `onPaymentAuthorized`) for Google Pay on Android native apps, enabling real-time updates of shipping, taxes, and prices within the Google Pay sheet. Details implementation steps including updating dependencies, extending `BasePaymentDataCallbacksService`, configuring the Android Manifest with `BIND_PAYMENTS_CALLBACK_SERVICE`, and setting `callbackIntents` in the `PaymentDataRequest`. This feature aims to reduce checkout friction and increase conversion rates.