Inconsistency between Android and iOS on validation state for CardField

[giorgiofellipe]

Describe the bug
There is a inconsistency on validation state for CardField (state control which was added by #629).
You can see below what I got on onCardChange after typing only the first card number:

iOS:

{
   "brand":"Visa",
   "complete":false,
   "expiryMonth":null,
   "expiryYear":null,
   "last4":"",
   "validCVC":"Incomplete",
   "validExpiryDate":"Incomplete",
   "validNumber":"Incomplete"
}

Android:

{
   "brand":null,
   "complete":false,
   "expiryMonth":null,
   "expiryYear":null,
   "last4":null,
   "validCVC":"Invalid",
   "validExpiryDate":"Invalid",
   "validNumber":"Invalid"
}

To Reproduce
Steps to reproduce the behavior:

1. Setup a screen with a CardField
2. Type just the first digit of card number
3. Log what you receive on onCardChange

Do it for both platforms and check results.

Expected behavior
All platforms should handle the state equally

[AleCatSS]

Hello,

Is this ticket still active? It's marked as closed and merged but labelled 'in progress'.

In any case, I can still see an inconsistency between iOS and Android on the brand name:

after typing the first digit '4':

iOS
{"brand": "Visa", "complete": false, "expiryMonth": null, "expiryYear": null, "last4": "", "validCVC": "Incomplete", "validExpiryDate": "Incomplete", "validNumber": "Incomplete"}
Android
{"brand": "", "complete": false, "expiryMonth": null, "expiryYear": null, "last4": "", "validCVC": "Incomplete", "validExpiryDate": "Incomplete", "validNumber": "Incomplete"}

I tested on 0.12.0 and 0.13.1.

Thank you

[charliecruzan-stripe]

that is being tracked in #714

[wazirkhan786]

If you are using latest version of stripe-react-native then please add prop to CardField postalCodeEnabled={true} for android and false for ios . It will solve the issue