SliverBarChart class

A sliver whose size varies when the sliver is scrolled to the edge of the viewport opposite the sliver's GrowthDirection.

In the normal case of a CustomScrollView with no centered sliver, this sliver will vary its size when scrolled to the leading edge of the viewport.

This is the layout primitive that SliverAppBar uses for its shrinking/growing effect.

Inheritance

Constructors

SliverBarChart({Key? key, bool restrain = false, bool? scrolling, List<double> heightArray = const [50.0, 78.0, 90.0, 67.0, 36.0], double maxWidth = 75.0, double minHeight = 30.0, double maxHeight = 175.0, bool fluctuating = false, required BarChartWidget barWidget})
Creates a sliver that varies its size when it is scrolled to the start of a viewport.
const

Properties

barWidget BarChartWidget
final
fluctuating bool
Whether the header should immediately grow again if the user reverses scroll direction.
final
hashCode int
The hash code for this object.
no setterinherited
heightArray List<double>
final
key Key?
Controls how one widget replaces another widget in the tree.
finalinherited
maxHeight double
final
maxWidth double
Configuration for the sliver's layout.
final
minHeight double
final
restrain bool
Whether to stick the header to the start of the viewport once it has reached its minimum size.
final
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
scrolling bool?
final

Methods

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