# Accordion class Null safety

The container list for all accordion sections. Usage:

    	Accordion(
    		maxOpenSections: 1,
    		headerTextStyle: TextStyle(color: Colors.white, fontSize: 17, fontWeight: FontWeight.bold),
    		leftIcon: Icon(Icons.audiotrack, color: Colors.white),
    		children: [
    			AccordionSection(
    				isOpen: true,
    				headerText: 'Introduction',
    				content: Icon(Icons.airplanemode_active, size: 200, color: Colors.amber),
    			),
    			AccordionSection(
    				isOpen: true,
    				headerText: 'About Us',
    				content: Icon(Icons.airline_seat_flat, size: 120, color: Colors.blue[200]),
    			),
    			AccordionSection(
    				isOpen: true,
    				headerText: 'Company Info',
    				content: Icon(Icons.airplay, size: 70, color: Colors.green[200]),
    			),
    		],
    	)

Inheritance
  - Object
  - DiagnosticableTree
  - Widget
  - StatelessWidget
  - Accordion
Mixed in types
  - CommonParams
Available Extensions
  - WidgetMarginX
  - WidgetPaddingX
  - WidgetSliverBoxX

## Constructors

Accordion({int? maxOpenSections, List<AccordionSection>? children, int? initialOpeningSequenceDelay, Color? headerBackgroundColor, double? headerBorderRadius, TextAlign? headerTextAlign, TextStyle? headerTextStyle, Widget? leftIcon, Widget? rightIcon, bool? flipRightIconIfOpen, Color? contentBackgroundColor, Color? contentBorderColor, double? contentBorderWidth, double? contentBorderRadius, double? contentHorizontalPadding, double? contentVerticalPadding, double paddingListTop = 20.0, double paddingListBottom = 40.0, double paddingListHorizontal = 10.0, EdgeInsets? headerPadding, double? paddingBetweenOpenSections, double? paddingBetweenClosedSections, ScrollIntoViewOfItems? scrollIntoViewOfItems})

## Properties

children → List<AccordionSection>?
  final
hashCode → int
  The hash code for this object. [...]
  @nonVirtual, read-only, inherited
key → Key?
  Controls how one widget replaces another widget in the tree. [...]
  final, inherited
paddingListBottom → double
  final
paddingListHorizontal → double
  final
paddingListTop → double
  final
runtimeType → Type
  A representation of the runtime type of the object.
  read-only, inherited

## 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. [...]
  @protected, inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
  Add additional properties associated with the node. [...]
  inherited
noSuchMethod(Invocation invocation) → dynamic
  Invoked when a non-existent 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. [...]
  @nonVirtual, inherited