SingleColumnPicker class
单列选择
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- PickerStatelessWidget<
int> - SingleColumnPicker
- Available Extensions
Constructors
-
SingleColumnPicker({Key? key, int initialIndex = 0, required int itemCount, required IndexedWidgetBuilder itemBuilder, double height = kPickerDefaultHeight, double width = double.infinity, FixedExtentScrollController? controller, PickerOptions<
int> ? options = const PickerOptions<int>(), SingleColumnPickerChanged? onChanged, PickerWheelOptions? wheelOptions})
Properties
- controller → FixedExtentScrollController?
-
控制器
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- height → double
-
height
final
- itemBuilder → IndexedWidgetBuilder
-
final
- itemCount → int
-
渲染子组件
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- onChanged → SingleColumnPickerChanged?
-
onChanged
final
-
options
→ PickerOptions<
int> ? -
头部和背景色配置
finalinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- wheelOptions → PickerWheelOptions
-
Wheel配置信息
finalinherited
- width → double
-
width
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
DiagnosticsNodeobjects 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