postalAddressExtendedPostalCode constant
The input field expects an extended ZIP/POSTAL code.
This hint will be translated to the below values on different platforms:
- Android: AUTOFILL_HINT_POSTAL_ADDRESS_EXTENDED_POSTAL_CODE.
 - Otherwise, the hint string will be used as-is.
 
Implementation
static const String postalAddressExtendedPostalCode = 'postalAddressExtendedPostalCode';