DraggableWidget class
Widget that represents user-draggable area. By default the widget will look for DragItemWidget in parent widget hierarchy in order to provide data for the drag session.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- DraggableWidget
Constructors
- DraggableWidget({Key? key, required Widget child, OnDragConfiguration? onDragConfiguration, OnAdditonalItems? onAdditonalItems, HitTestBehavior hitTestBehavior = HitTestBehavior.deferToChild, LocationIsDraggable isLocationDraggable = _defaultIsLocationDraggable, DragItemsProvider dragItemsProvider = _defaultDragItemsProvider, DragItemsProvider additionalDragItemsProvider = _defaultDragItemsProvider})
-
const
Properties
- additionalDragItemsProvider → DragItemsProvider
-
final
- child → Widget
-
final
- dragItemsProvider → DragItemsProvider
-
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- hitTestBehavior → HitTestBehavior
-
final
- isLocationDraggable → LocationIsDraggable
-
Should return true if the offset is considered draggable.
The offset is in global coordinates but restricted to area covered
by the Widget.
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- onAdditonalItems → OnAdditonalItems?
-
Allows post-processing additional items added to drag session.
final
- onDragConfiguration → OnDragConfiguration?
-
Allows post-processing initial drag configuration.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
additionalItems(
List< DragItemWidgetState> items, Offset location, DragSession session) → Future<List< DragConfigurationItem> ?> -
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
-
dragConfigurationForItems(
List< DragItemWidgetState> items, Offset location, DragSession session) → Future<DragConfiguration?> -
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