The current state of a FormField. Passed to the FormFieldBuilder method for use in constructing the form field's widget.
Constructors
Properties
- errorText → String
-
The current validation error returned by the
FormField.validatorcallback, or null if no errors have been triggered. This only updates whenvalidateis called.read-only - hasError → bool
-
True if this field has any validation errors.
read-only - value → T
-
The current value of the form field.
read-only - config → FormField<T>
-
The current configuration.
read-only, inherited - context → BuildContext
-
The location in the tree where this widget builds.
read-only, inherited - hashCode → int
-
Get a hash code for this object.
read-only, inherited - mounted → bool
-
Whether this
Stateobject is currently in a tree.read-only, inherited - runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
Operators
-
operator ==(
other) → bool -
The equality operator.
inherited
Methods
-
build(
BuildContext context) → Widget -
Describes the part of the user interface represented by this widget.
-
deactivate(
) → void -
Called when this object is removed from the tree.
-
initState(
) → void -
Called when this object is inserted into the tree.
-
onChanged(
T value) → void -
Updates this field's state to the new value. Useful for responding to child widget changes, e.g.
Slider's onChanged argument. -
reset(
) → void -
Resets the field to its initial value.
-
save(
) → void -
Calls the FormField's onSaved method with the current value.
-
validate(
) → bool -
Calls FormField.validator to set the errorText. Returns true if there were no errors.
-
debugFillDescription(
List<String> description) → void -
Add additional information to the given description for use by toString.
inherited -
dependenciesChanged(
) → void -
Called when a dependency of this State object changes.
inherited -
didUpdateConfig(
FormField<T> oldConfig) → void -
Called whenever the configuration changes.
inherited -
dispose(
) → void -
Called when this object is removed from the tree permanently.
inherited -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed.
inherited -
reassemble(
) → void -
Called whenever the application is reassembled during debugging.
inherited -
setState(
VoidCallback fn) → void -
Notify the framework that the internal state of this object has changed.
inherited -
toString(
) → String -
Returns a string representation of this object.
inherited