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:
- Stack, for more details about stacks.
- The catalog of layout widgets.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- IndexedStack
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