Flutter PlatformException invalid email format - firebase

Question

I'm tweaking my app as I go and I added a "full name" field to store in firebase and display on the user profile page. I'm getting the error "PlatformException(ERROR_INVALID_EMAIL, The email address is badly formatted., null)" when registering a new user. From other similar posts, I can't find any naming conventions which has me at a roadblock.
Register.dart:
SizedBox(height: 20.0),
TextFormField(
decoration:
textInputDecoration.copyWith(hintText: 'Full Name'),
validator: (val) =>
val.isEmpty ? 'Enter a Full Name' : null,
onChanged: (val) {
setState(() => fullname = val);
}),
SizedBox(height: 20.0),
TextFormField(
decoration:
textInputDecoration.copyWith(hintText: 'Email'),
validator: (val) =>
val.isEmpty ? 'Enter an email' : null,
onChanged: (val) {
setState(() => email = val);
}),
SizedBox(height: 20.0),
TextFormField(
decoration:
textInputDecoration.copyWith(hintText: 'Password'),
obscureText: true,
validator: (val) => val.length < 6
? 'Enter a password 6+ chars long'
: null,
onChanged: (val) {
setState(() => password = val);
}),
SizedBox(height: 20.0),
RaisedButton(
color: Colors.blue[400],
child: Text(
'Register',
style: TextStyle(color: Colors.white),
),
onPressed: () async {
if (_formKey.currentState.validate()) {
setState(() => loading = true);
dynamic result =
await _auth.registerWithEmailAndPassword(
fullname, email, password);
if (result == null) {
setState(() {
error = 'please supply a valid email';
loading = false;
});
}
}
}),
auth.dart
Future registerWithEmailAndPassword(String email, String password, String fullname) async {
try {
AuthResult result = await _auth.createUserWithEmailAndPassword(
email: email, password: password);
FirebaseUser user = result.user;
return _userFromFirebaseUser(user);
} catch (e) {
print(e.toString());
return null;
}
}

Answer 1

You're function declaration says that your parameters come in this order String email, String password, String fullname, but the way you are using them is in this order fullname, email, password. Change
await _auth.registerWithEmailAndPassword(fullname, email, password);
to
await _auth.registerWithEmailAndPassword(email, password, fullname);
The only issue is a typo.
You could use named parameters, which might make it more obvious when there are issue like this, but I find it to be useful only with function or constructors with a lot of parameters.

Answer 2

you need to trim both email and password