ShiftingTabBar class

A widget that displays a horizontal row of tabs with some kind of shifting animation.

Typically created instead of AppBar and in conjunction with a TabBarView.

If a TabController is not provided, then a DefaultTabController ancestor must be provided instead. The tab controller's TabController.length must equal the length of the tabs list.

Requires one of its ancestors to be a Material widget.

See also:

  • TabBarView, which displays page views that correspond to each tab.
Inheritance
Implemented types

Constructors

ShiftingTabBar({Key? key, required List<ShiftingTab> tabs, TabController? controller, Color? color, Brightness? brightness, double? labelFlex, TextStyle? labelStyle, bool forceUpperCase = true})
Creates a shifting tab bar.
const

Properties

brightness → Brightness?
Describes the contrast of background color.
final
color → Color?
The color of widget background.
final
controller → TabController?
This widget's selection and animation state.
final
forceUpperCase → bool
The option to disable upper-case style in labels
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
labelFlex → double?
The amount of space that Text widget can take.
final
labelStyle → TextStyle?
The text style of the tab labels.
final
preferredSize → Size
The size this widget would prefer if it were otherwise unconstrained.
no setteroverride
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
tabs → List<ShiftingTab>
Typically a list of two or more ShiftingTab widgets.
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → _ShiftingTabBarState
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}) → 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