SectionSwitcher class
A composite widget that combines a SegmentedControl with an AnimatedSwitcher.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- SectionSwitcher
Constructors
-
SectionSwitcher({Key? key, required List<
NavigationItem> items, SectionSwitcherController? controller, int initialIndex = 0, double segmentedHeight = 40.0, double segmentedItemSpacing = 4.0, EdgeInsets contentPadding = EdgeInsets.zero, EdgeInsets segmentedMargin = EdgeInsets.zero, SegmentedControlStyle? segmentedControlStyle, Duration duration = const Duration(milliseconds: 300), Curve curve = Curves.easeInOut, ValueChanged<int> ? onPageChanged}) -
const
Properties
- contentPadding → EdgeInsets
-
The padding applied around the page content area, below the control bar.
Defaults to
EdgeInsets.zero.final - controller → SectionSwitcherController?
-
A controller to programmatically manage the selected section.
final
- curve → Curve
-
The animation curve used for all transitions. Defaults to Curves.easeInOut.
final
- duration → Duration
-
The duration for all animations, including the indicator slide and the
page cross-fade. Defaults to
300 milliseconds.final - hashCode → int
-
The hash code for this object.
no setterinherited
- initialIndex → int
-
The index of the item and page to display initially. Defaults to
0. This property is ignored if a controller is provided.final -
items
→ List<
NavigationItem> -
A list of NavigationItem objects, each defining a page and its
corresponding segment appearance (icon and label).
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
-
onPageChanged
→ ValueChanged<
int> ? -
A callback that is invoked when the selected page changes.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- segmentedControlStyle → SegmentedControlStyle?
-
The style to apply to the SegmentedControl.
final
- segmentedHeight → double
-
The height of the SegmentedControl bar. Defaults to
40.0.final - segmentedItemSpacing → double
-
The horizontal spacing between the icon and label within each segment.
Defaults to
4.0.final - segmentedMargin → EdgeInsets
-
The outer margin surrounding the SegmentedControl bar. Defaults to
EdgeInsets.zero.final
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< SectionSwitcher> -
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