FormControllerMixin mixin

FormControllerMixin is a mixin for any class that needs form validation logic.

It can be used with any state management solution, eg. ChangeNotifier, Riverpod, flutter_bloc, etc.

It can be used to validate the form and to get the validation state of its fields.

The fields can be grouped in subform with using another FormControllerMixin. This will make the form more modular and reusable.

Example:

class UserIdentityFormController with FormControllerMixin {
  final email = EmailFieldController();
  final password = PasswordFieldController();
  List<FormPart> get fields => [email, password];
}
class RegisterFormController with FormControllerMixin {
  final userIdentity = UserIdentityFormController();
  final firstName = TextFieldController();
  final lastName = TextFieldController();
  List<FormPart> get fields => [userIdentity, firstName, lastName];
}

Implemented types

• FormPart<FormControllerState>

Properties

debugLabel → String?

no setter

fields → List<FormPart<FormPartState>>

The fields of the form.

no setter

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

value → FormControllerState

Current state of the form.

no setter, override

Methods

addListener(VoidCallback listener) → void

Register a closure to be called when the object notifies its listeners.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

removeListener(VoidCallback listener) → void

Remove a previously registered closure from the list of closures that the object notifies.

override

toMap() → Map<String, dynamic>

Used to dump the state of the node.

override

toString() → String

A string representation of this object.

override

validate({bool? autoValidate}) → bool

Validates all fields of the form.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited