On the last version of my Flutter mobile application, Google Play Console requires App Access credentials(Action Required: Provide instructions for app access), because the app is written in Dart, I don't know how to find the resource id of the username textfield and password textfield. Thanks.
I am not sure if this works, but you can try to set up a key for your username and password widgets, something like:
TextFormField(
key: const Key('username'),
decoration: InputDecoration(
labelText: 'Username',
errorText: 'Field required',
onChanged: (newValue) {...},
validator: (value) {...}
),
TextFormField(
key: const Key('password'),
...
)