FluentInput class

A Fluent 2 single-line text field.

FluentInput(
  controller: controller,
  placeholder: const Text('Search'),
  contentBefore: const Icon(FluentIcons.search_20_regular),
  onSubmitted: search,
)

Built directly on EditableText — package:flutter/material.dart is not a dependency of this package, so TextField does not exist here. Caret placement, drag selection, double-tap word selection and long-press come from TextSelectionGestureDetectorBuilder, the widgets-layer machinery TextField itself uses; the handles come from FluentTextSelectionControls.

Pass enabled: false to disable it — disabled is a real state here, not a visual treatment: the field stops reporting hover and press, refuses edits, swaps to the disabled token ramp wholesale, and loses its focus bar entirely, matching upstream's ::after { content: unset }.

There is no focus ring. Upstream writes :focus-within { outline: 2px solid transparent } — deliberately suppressing the shared ring — and Figma's twelve State=Focus variants draw only the brand bar. The growing underline is the focus indicator.

Customisation follows the usual three rungs. style is merged last and wins; FluentInputTheme restyles a subtree; and for anything further, resolveFluentInputState, resolveFluentInputStyle and buildFluentInput are public so any one of them can be replaced without forking this widget.

Inheritance

Constructors

FluentInput({Key? key, TextEditingController? controller, FocusNode? focusNode, FluentInputAppearance appearance = FluentInputAppearance.outline, FluentInputSize size = FluentInputSize.medium, Widget? placeholder, Widget? contentBefore, Widget? contentAfter, bool enabled = true, bool readOnly = false, bool error = false, bool obscureText = false, int? maxLines = 1, int? minLines, TextInputType? keyboardType, TextInputAction? textInputAction, ValueChanged<String>? onChanged, ValueChanged<String>? onSubmitted, bool autofocus = false, Iterable<String>? autofillHints, FluentInputStyle? style, String? semanticLabel})
Creates a text field.
const

Properties

appearance → FluentInputAppearance
Fill and outline treatment.
final
autofillHints → Iterable<String>?
Autofill categories for this field, e.g. [AutofillHints.username].
final
autofocus → bool
Whether to take focus on mount.
final
contentAfter → Widget?
Slot after the field in reading order.
final
contentBefore → Widget?
Slot before the field in reading order — an icon, a prefix, a button.
final
controller → TextEditingController?
The value being edited. One is created internally when omitted.
final
enabled → bool
Whether the field accepts input. False is a real disabled state.
final
error → bool
Whether to paint the validation-error treatment.
final
focusNode → FocusNode?
Focus node to use. One is created internally when omitted.
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
keyboardType → TextInputType?
Which soft keyboard to request.
final
maxLines → int?
Maximum rendered lines, or null to grow without bound.
final
minLines → int?
Minimum rendered lines.
final
obscureText → bool
Whether characters are replaced by the obscuring character.
final
onChanged → ValueChanged<String>?
Invoked on every edit.
final
onSubmitted → ValueChanged<String>?
Invoked when the action key is pressed.
final
placeholder → Widget?
Shown while the value is empty.
final
readOnly → bool
Whether the value can be selected and copied but not edited.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
semanticLabel → String?
Announced by assistive technology. Use it when no visible label names the field — a placeholder is not a label.
final
size → FluentInputSize
Height and type ramp.
final
style → FluentInputStyle?
Overrides layered over the theme defaults. Merged last, so it wins.
final
textInputAction → TextInputAction?
The soft keyboard's action key.
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<FluentInput>
Creates the mutable state for this widget at a given location in the tree.
override
debugDescribeChildren() → List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String
A string representation of this object.
inherited
toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug, int wrapWidth = 65}) → String
Returns a string representation of this node and its descendants.
inherited
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String
Returns a one-line detailed description of the object.
inherited
toStringShort() → String
A short, textual description of this widget.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited