DHPicker class Null safety

@author Evan @since 2020/12/31 @describe:

Inheritance

Constructors

DHPicker({Key? key, double diameterRatio = kDefaultDiameterRatio, Color? backgroundColor, double offAxisFraction = 0.0, bool useMagnifier = false, double magnification = 1.0, FixedExtentScrollController? scrollController, double squeeze = kSqueeze, Widget? selectionOverlay = const DefaultSelectionOverlay(), Widget? label, EdgeInsetsGeometry? labelPadding, AlignmentGeometry labelAlignment = Alignment.center, required double itemExtent, required ValueChanged<int>? onSelectedItemChanged, required List<Widget> children, bool looping = false})
DHPicker.builder({Key? key, double diameterRatio = kDefaultDiameterRatio, Color? backgroundColor, double offAxisFraction = 0.0, bool useMagnifier = false, double magnification = 1.0, FixedExtentScrollController? scrollController, double squeeze = kSqueeze, Widget? label, EdgeInsetsGeometry? labelPadding, AlignmentGeometry labelAlignment = Alignment.center, required double itemExtent, required ValueChanged<int>? onSelectedItemChanged, required NullableIndexedWidgetBuilder itemBuilder, int? childCount, Widget? selectionOverlay = const DefaultSelectionOverlay()})

Properties

backgroundColor Color?
final
childDelegate ListWheelChildDelegate
final
diameterRatio double
final
hashCode int
The hash code for this object. [...]
@nonVirtual, read-only, inherited
itemExtent double
final
key Key?
Controls how one widget replaces another widget in the tree. [...]
final, inherited
label Widget?
final
labelAlignment AlignmentGeometry
final
labelPadding EdgeInsetsGeometry?
final
magnification double
final
offAxisFraction double
final
onSelectedItemChanged ValueChanged<int>?
final
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
scrollController FixedExtentScrollController?
final
selectionOverlay Widget?
final
squeeze double
final
useMagnifier bool
final

Methods

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