M3ESelectionAppBar class
Wraps an idle header widget and swaps to a contextual selection bar.
idle may be any widget (e.g. an app bar, or a column of header content). Height is intrinsic — place this above the list body (see M3ESelection), not in a scaffold app-bar slot, so arbitrary idle heights do not overflow.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- M3ESelectionAppBar
Constructors
-
M3ESelectionAppBar({required Widget idle, M3ESelectionController? controller, int? itemCount, List<
Widget> actions = const <Widget>[], String selectAllLabel = 'Select all', bool showSelectAll = true, VoidCallback? onClear, ValueChanged<bool> ? onAllSelected, M3ESelectionTheme? theme, Key? key}) -
Creates a selection app bar wrapper.
const
Properties
-
actions
→ List<
Widget> -
Contextual action widgets (typically M3EIconButtons).
final
- controller → M3ESelectionController?
-
Selection controller. Optional under M3ESelectionScope.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- idle → Widget
-
Shown when nothing is selected. Any widget; height is intrinsic.
final
- itemCount → int?
-
Item count for select-all. Optional under M3ESelectionScope.
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
-
onAllSelected
→ ValueChanged<
bool> ? -
Fired when select-all toggles (
true= all selected).final - onClear → VoidCallback?
-
Called instead of M3ESelectionController.clear when close is pressed.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- selectAllLabel → String
-
Label beside the select-all checkbox.
final
- showSelectAll → bool
-
Whether to show the select-all row in selection mode.
final
- theme → M3ESelectionTheme?
-
Theme override.
final
Methods
-
copyWithWiring(
{M3ESelectionController? controller, int? itemCount, ValueChanged< bool> ? onAllSelected}) → M3ESelectionAppBar -
Returns a copy with an injected controller and optional
itemCount. -
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< M3ESelectionAppBar> -
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, 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