FormFieldState<T> class
The mutable state for a FormField, tracking value and validation errors.
Constructors
Properties
- context → BuildContext
-
The BuildContext for this state object.
no setterinherited
- errorText → String?
-
The current validation error message, or
nullif valid.no setter - hasError → bool
-
Whether the field currently has a validation error.
no setter
- hashCode → int
-
The hash code for this object.
no setterinherited
- isValid → bool
-
Whether the field currently passes validation.
no setter
- mounted → bool
-
Whether this state object is currently in the tree.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- value → T
-
The current value of the field.
no setter
-
widget
→ FormField<
T> -
The current widget configuration.
no setterinherited
Methods
-
build(
BuildContext context) → Widget -
Describes the part of the user interface represented by this state.
override
-
didUpdateWidget(
FormField< T> oldWidget) → void -
Called when the widget configuration changes.
inherited
-
dispose(
) → void -
Called when this state object is removed from the tree permanently.
override
-
initState(
) → void -
Called when this state object is first inserted into the tree.
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
reset(
) → void -
Resets the field to
initialValueand clears any error. -
save(
) → void -
Calls
onSavedwith the current value. -
setState(
void fn()) → void -
Notifies the framework that the internal state has changed, triggering a rebuild.
inherited
-
setValue(
T value) → void - Updates the field value and triggers a rebuild.
-
toString(
) → String -
A string representation of this object.
inherited
-
validate(
) → bool -
Runs the
validatorand returnstrueif the field is valid.
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited