SwitchState class
官方版增加状态
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- SwitchState
- Available extensions
Constructors
-
SwitchState({Key? key, required bool value, ValueChanged<
bool> ? onChanged, Color? activeColor, Color? activeTrackColor, Color? inactiveThumbColor, Color? inactiveTrackColor, ImageProvider<Object> ? activeThumbImage, ImageErrorListener? onActiveThumbImageError, ImageProvider<Object> ? inactiveThumbImage, ImageErrorListener? onInactiveThumbImageError, MaterialStateProperty<Color?> ? thumbColor, MaterialStateProperty<Color?> ? trackColor, MaterialTapTargetSize? materialTapTargetSize, DragStartBehavior dragStartBehavior = DragStartBehavior.start, MouseCursor? mouseCursor, Color? focusColor, Color? hoverColor, MaterialStateProperty<Color?> ? overlayColor, double? splashRadius, FocusNode? focusNode, bool autofocus = false, ValueCallback<BuildContext> ? initState, ValueCallback<BuildContext> ? dispose, ValueCallback<BuildContext> ? didChangeDependencies, ValueCallback<BuildContext> ? didUpdateWidget, SwitchStateChanged? onWaitChanged}) -
const
-
SwitchState.adaptive({Key? key, required bool value, ValueChanged<
bool> ? onChanged, Color? activeColor, Color? activeTrackColor, Color? inactiveThumbColor, Color? inactiveTrackColor, ImageProvider<Object> ? activeThumbImage, ImageErrorListener? onActiveThumbImageError, ImageProvider<Object> ? inactiveThumbImage, ImageErrorListener? onInactiveThumbImageError, MaterialTapTargetSize? materialTapTargetSize, MaterialStateProperty<Color?> ? thumbColor, MaterialStateProperty<Color?> ? trackColor, DragStartBehavior dragStartBehavior = DragStartBehavior.start, MouseCursor? mouseCursor, Color? focusColor, Color? hoverColor, MaterialStateProperty<Color?> ? overlayColor, double? splashRadius, FocusNode? focusNode, bool autofocus = false, ValueCallback<BuildContext> ? initState, ValueCallback<BuildContext> ? dispose, ValueCallback<BuildContext> ? didChangeDependencies, ValueCallback<BuildContext> ? didUpdateWidget, SwitchStateChanged? onWaitChanged}) -
Creates an adaptive Switch based on whether the target platform is iOS
or macOS, following Material design's
Cross-platform guidelines.
const
Properties
- activeColor → Color?
-
The color to use when this switch is on.
final
-
activeThumbImage
→ ImageProvider<
Object> ? -
An image to use on the thumb of this switch when the switch is on.
final
- activeTrackColor → Color?
-
The color to use on the track when this switch is on.
final
- autofocus → bool
-
True if this widget will be selected as the initial focus when no other
node in its scope is currently focused.
final
-
didChangeDependencies
→ ValueCallback<
BuildContext> ? -
didChangeDependencies
final
-
didUpdateWidget
→ ValueCallback<
BuildContext> ? -
didUpdateWidget
final
-
dispose
→ ValueCallback<
BuildContext> ? -
dispose
final
- dragStartBehavior → DragStartBehavior
-
Determines the way that drag start behavior is handled.
final
- focusColor → Color?
-
The color for the button's Material when it has the input focus.
final
- focusNode → FocusNode?
-
An optional focus node to use as the focus node for this widget.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- hoverColor → Color?
-
The color for the button's Material when a pointer is hovering over it.
final
- inactiveThumbColor → Color?
-
The color to use on the thumb when this switch is off.
final
-
inactiveThumbImage
→ ImageProvider<
Object> ? -
An image to use on the thumb of this switch when the switch is off.
final
- inactiveTrackColor → Color?
-
The color to use on the track when this switch is off.
final
-
initState
→ ValueCallback<
BuildContext> ? -
initState
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- materialTapTargetSize → MaterialTapTargetSize?
-
Configures the minimum size of the tap target.
final
- mouseCursor → MouseCursor?
-
The cursor for a mouse pointer when it enters or is hovering over the
widget.
final
- onActiveThumbImageError → ImageErrorListener?
-
An optional error callback for errors emitted when loading
activeThumbImage.
final
-
onChanged
→ ValueChanged<
bool> ? -
Called when the user toggles the switch on or off.
final
- onInactiveThumbImageError → ImageErrorListener?
-
An optional error callback for errors emitted when loading
inactiveThumbImage.
final
- onWaitChanged → SwitchStateChanged?
-
final
-
overlayColor
→ MaterialStateProperty<
Color?> ? -
The color for the switch's Material.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- splashRadius → double?
-
The splash radius of the circular Material ink response.
final
-
thumbColor
→ MaterialStateProperty<
Color?> ? -
The color of this Switch's thumb.
final
-
trackColor
→ MaterialStateProperty<
Color?> ? -
The color of this Switch's track.
final
- value → bool
-
Whether this switch is on or off.
final
Methods
-
build(
BuildContext context) → Widget -
Describes the part of the user interface represented by this widget.
override
-
createElement(
) → StatelessElement -
Creates a StatelessElement to manage this widget's location in the tree.
inherited
-
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}) → 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