IndexedStack class

A Stack that shows a single child from a list of children.

The displayed child is the one with the given index. The stack is always as big as the largest child.

If value is null, then nothing is displayed.

This example shows a IndexedStack widget being used to lay out one card at a time from a series of cards, each keeping their respective states.
link

To create a local project with this code sample, run:
flutter create --sample=widgets.IndexedStack.1 mysample

See also:

Inheritance

Constructors

IndexedStack({Key? key, AlignmentGeometry alignment = AlignmentDirectional.topStart, TextDirection? textDirection, Clip clipBehavior = Clip.hardEdge, StackFit sizing = StackFit.loose, int? index = 0, List<Widget> children = const <Widget>[]})
Creates a Stack widget that paints a single child.
const

Properties

alignment AlignmentGeometry
How to align the non-positioned and partially-positioned children in the stack.
final
children List<Widget>
The child widgets of the stack.
final
clipBehavior Clip
The content will be clipped (or not) according to this option.
final
hashCode int
The hash code for this object.
no setterinherited
index int?
The index of the child to show.
final
key Key?
Controls how one widget replaces another widget in the tree.
finalinherited
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
sizing StackFit
How to size the non-positioned children in the stack.
final
textDirection TextDirection?
The text direction with which to resolve alignment.
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