JsonScrollbarBuilderModel class
Creates a Material Design scrollbar that by default will connect to the closest Scrollable descendant of child.
The child should be a source of ScrollNotification notifications, typically a Scrollable widget.
If the controller is null, the default behavior is to enable scrollbar dragging using the PrimaryScrollController.
When null, thickness defaults to 8.0 pixels on desktop and web, and 4.0 pixels when on mobile platforms. A null radius will result in a default of an 8.0 pixel circular radius about the corners of the scrollbar thumb, except for when executing on TargetPlatform.android, which will render the thumb without a radius.
- Inheritance
-
- Object
- JsonClass
- JsonWidgetBuilderModel
- JsonScrollbarBuilderModel
Constructors
-
JsonScrollbarBuilderModel(Map<
String, dynamic> args, {ScrollController? controller, bool? interactive, bool notificationPredicate(ScrollNotification)?, Radius? radius, ScrollbarOrientation? scrollbarOrientation, bool? showTrackOnHover, double? thickness, bool? thumbVisibility, bool? trackVisibility, required JsonWidgetData child}) -
const
Properties
-
args
→ Map<
String, dynamic> -
finalinherited
- child → JsonWidgetData
-
The widget below this widget in the tree.
final
- controller → ScrollController?
-
The ScrollController used to implement Scrollbar dragging.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- interactive → bool?
-
Whether the Scrollbar should be interactive and respond to dragging on the
thumb, or tapping in the track area.
final
- notificationPredicate → (bool Function(ScrollNotification)?)
-
A check that specifies whether a ScrollNotification should be
handled by this widget.
final
- radius → Radius?
-
The Radius of the scrollbar thumb's rounded rectangle corners.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- scrollbarOrientation → ScrollbarOrientation?
-
Dictates the orientation of the scrollbar.
final
- showTrackOnHover → bool?
-
Controls if the track will show on hover and remain, including during drag.
final
- thickness → double?
-
The thickness of the scrollbar in the cross axis of the scrollable.
final
- thumbVisibility → bool?
-
Indicates that the scrollbar thumb should be visible, even when a scroll
is not underway.
final
- trackVisibility → bool?
-
Indicates that the scrollbar track should be visible.
final
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toJson(
) → Map< String, dynamic> -
Abstract function that concrete classes must implement. This must encode
the internal data model to a JSON compatible representation.
override
-
toString(
) → String -
Returns the string encoded JSON representation for this class. This will
remove all null values and empty collections from the returned string.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Methods
-
fromDynamic(
dynamic map, {Map< String, dynamic> args = const {}, JsonWidgetRegistry? registry}) → JsonScrollbarBuilderModel -
maybeFromDynamic(
dynamic map, {Map< String, dynamic> args = const {}, JsonWidgetRegistry? registry}) → JsonScrollbarBuilderModel?