checkAlternativeBillingAvailabilityAndroid abstract method
Check whether alternative billing is available for the user. Step 1 of the alternative billing flow.
Returns true if available, false otherwise. Throws OpenIapError.NotPrepared if billing client not ready. See: https://www.openiap.dev/docs/apis/android/check-alternative-billing-availability-android
Implementation
Future<bool> checkAlternativeBillingAvailabilityAndroid();