Anchor class
An area that responds to touch. Has a configurable shape and can be configured to clip overlay that extend outside its bounds or not.
- Inheritance
Constructors
-
Anchor({Key? key, Curve? curve, Duration? duration, VoidCallback? onTap, GestureTapUpCallback? onTapUp, GestureTapDownCallback? onTapDown, VoidCallback? onTapCancel, VoidCallback? onDoubleTap, VoidCallback? onLongPress, ValueChanged<
bool> ? onHover, ValueChanged<bool> ? onFocus, bool? overlayDisabled, Color? overlayColor, double? overlayOpacity, MouseCursor? mouseCursor, BorderRadius? borderRadius, double? radius, BoxShape? shape, EdgeInsetsGeometry? padding, EdgeInsetsGeometry? margin, AnchorStyle? style, WidgetEventController? eventsController, FocusNode? focusNode, bool autofocus = false, bool canRequestFocus = true, bool disabled = false, Widget? child}) -
Creates an area that responds to touch.
const
-
Anchor.circle({Key? key, Curve? curve, Duration? duration, VoidCallback? onTap, GestureTapUpCallback? onTapUp, GestureTapDownCallback? onTapDown, VoidCallback? onTapCancel, VoidCallback? onDoubleTap, VoidCallback? onLongPress, ValueChanged<
bool> ? onHover, ValueChanged<bool> ? onFocus, bool? overlayDisabled, Color? overlayColor, double? overlayOpacity, MouseCursor? mouseCursor, double? radius, EdgeInsetsGeometry? padding, EdgeInsetsGeometry? margin, AnchorStyle? style, WidgetEventController? eventsController, FocusNode? focusNode, bool autofocus = false, bool canRequestFocus = true, bool disabled = false, Widget? child}) -
Creates a circle shaped area that responds to touch.
const
Properties
- autofocus → bool
-
True if this widget will be selected as the initial focus when no other
node in its scope is currently focused.
final
- borderRadius → BorderRadius?
-
The clipping radius of the containing rect. This is effective only if
the shape is BoxShape.circle.
final
- canRequestFocus → bool
-
If true, this widget may request the primary focus.
final
- child → Widget?
-
The widget below this widget in the tree.
final
- curve → Curve?
-
The curve to apply when animating
the parameters of this widget.
final
- disabled → bool
-
Whether or not this widget is disabled for interaction.
final
- duration → Duration?
-
The duration over which to animate
the parameters of this widget.
final
- effectiveStyle → AnchorStyle
-
no setter
- eventsController → WidgetEventController?
-
Used by widgets that expose their internal event
for the sake of extensions that add support for additional events.
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
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- margin → EdgeInsetsGeometry?
-
Empty space to surround the outside anchor.
final
- mouseCursor → MouseCursor?
-
The cursor for a mouse pointer when it enters or is hovering over the widget.
final
- onDoubleTap → VoidCallback?
-
Called when the user double taps
final
-
onFocus
→ ValueChanged<
bool> ? -
Handler called when the focus changes.
final
-
onHover
→ ValueChanged<
bool> ? -
Called when a pointer enters or exits the anchor area.
final
- onLongPress → VoidCallback?
-
Called when the user long-presses
final
- onTap → VoidCallback?
-
Called when the user taps
final
- onTapCancel → VoidCallback?
-
Called when the user cancels a tap that was started on
final
- onTapDown → GestureTapDownCallback?
-
Called when the user taps down
final
- onTapUp → GestureTapUpCallback?
-
Called when the user releases a tap that was started on
final
- overlayColor → Color?
-
The overlay color of the anchor when pressed, hovered over, or focused.
final
- overlayDisabled → bool?
-
Whether the overlay is disabled or not
final
- overlayOpacity → double?
-
The overlay opacity of the anchor when pressed, hovered over, or focused.
final
- padding → EdgeInsetsGeometry?
-
The padding between the contents of the anchor and the outside anchor.
final
- radius → double?
-
The radius of the overlay. If the shape is BoxShape.circle.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- shape → BoxShape?
-
The shape (e.g., circle, rectangle) to use for the overlay drawn around
this part of the anchor when pressed, hovered over, or focused.
final
- style → AnchorStyle?
-
The AnchorStyle to apply
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.
override
-
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