HRadioListView<T> class
A grouped, rounded-corner, single-select radio list.
Mirrors HListView's two construction styles:
- HRadioListView.new for an eagerly-built
itemslist. - HRadioListView.builder for lazily-built rows.
Example:
HRadioListView<String>(
groupValue: selected,
onChanged: (value) => setState(() => selected = value),
items: const [
HRadioListItemData(title: 'Small', subtitle: '', value: 's'),
HRadioListItemData(title: 'Large', subtitle: '', value: 'l'),
],
)
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- HRadioListView
Constructors
-
HRadioListView({Key? key, required List<
HRadioListItemData< items, required T groupValue, required ValueChanged<T> >T> onChanged, bool? enableScroll, bool? shrinkWrap, bool? dense}) -
Creates a grouped radio list from an eagerly-built
itemslist.const -
HRadioListView.builder({Key? key, required int itemCount, required HRadioListItemData<
T> itemBuilder(int index), required T groupValue, required ValueChanged<T> onChanged, bool? enableScroll, bool? shrinkWrap, bool? dense}) -
Creates a grouped radio list that builds its
itemCountrows lazily viaitemBuilder, analogous to ListView.builder.const
Properties
- dense → bool?
-
Whether rows use the compact/"dense"
ListTilelayout.final - enableScroll → bool?
-
Whether the list can be scrolled independently of its parent.
final
- groupValue → T
-
The currently-selected value. The row whose
HRadioListItemData.valueequals this is rendered as selected.final - hashCode → int
-
The hash code for this object.
no setterinherited
-
itemBuilder
→ HRadioListItemData<
T> Function(int index)? -
Builds the row at the given index, when constructed via
HRadioListView.builder.
final
- itemCount → int?
-
The number of rows to render, when constructed via
HRadioListView.builder.
final
-
items
→ List<
HRadioListItemData< ?T> > -
The rows to render, when constructed via HRadioListView.new.
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
-
onChanged
→ ValueChanged<
T> -
Called with the newly-selected value when the user picks a row.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- shrinkWrap → bool?
-
Whether the list should size itself to its content.
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 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, int wrapWidth = 65}) → 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