CollapsingToolbar class

It helps you in creating a Romantic Collapsing Toolbar. This widget is created to be able to standalone with any views, helps you able to add it into any complex ScrollView or ListView.

Inheritance

Constructors

CollapsingToolbar({Key? key, required ScrollController controller, required double expandedHeight, required double collapsedHeight, required dynamic onCollapsing(double offset), Curve animationCurve = Curves.easeIn, Widget? leading, Widget? title, List<Widget>? actions, required Widget featureIconBuilder(BuildContext context, int index), required Widget featureLabelBuilder(BuildContext context, int index), required int featureCount, ButtonStyle? featureButtonStyle, double featureCollapsedFactor = 0.6, required dynamic featureOnPressed(BuildContext context, int index), double horizontalPadding = 12, double verticalPadding = 12, Color decorationBackgroundColor = _kDefaultBackgroundColor, Color decorationForegroundColor = _kDefaultForegroundColor, bool useDefaultDecoration = true})
Create a CollapsingToolbar.
const

Properties

actions → List<Widget>?
final
animationCurve → Curve
final
collapsedHeight → double
final
controller → ScrollController
final
decorationBackgroundColor → Color
final
decorationForegroundColor → Color
final
expandedHeight → double
final
featureButtonStyle → ButtonStyle?
final
featureCollapsedFactor → double
final
featureCount → int
final
featureIconBuilder → Widget Function(BuildContext context, int index)
final
featureLabelBuilder → Widget Function(BuildContext context, int index)
final
featureOnPressed → dynamic Function(BuildContext context, int index)
final
hashCode → int
The hash code for this object.
no setterinherited
horizontalPadding → double
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
leading → Widget?
final
onCollapsing → dynamic Function(double offset)
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
title → Widget?
final
useDefaultDecoration → bool
final
verticalPadding → double
final

Methods

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