ReorderableDragStartListener class
A wrapper widget that will recognize the start of a drag on the wrapped widget by a PointerDownEvent, and immediately initiate dragging the wrapped item to a new location in a reorderable list.
See also:
- ReorderableDelayedDragStartListener, a similar wrapper that will only recognize the start after a long press event.
- ReorderableList, a widget list that allows the user to reorder its items.
- SliverReorderableList, a sliver list that allows the user to reorder its items.
- ReorderableListView, a Material Design list that allows the user to reorder its items.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- ReorderableDragStartListener
- Implementers
Constructors
- ReorderableDragStartListener({Key? key, required Widget child, required int index, bool enabled = true})
-
Creates a listener for a drag immediately following a pointer down
event over the given child widget.
const
Properties
- child → Widget
-
The widget for which the application would like to respond to a tap and
drag gesture by starting a reordering drag on a reorderable list.
final
- enabled → bool
-
Whether the child item can be dragged and moved in the list.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- index → int
-
The index of the associated item that will be dragged in the list.
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
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
-
createRecognizer(
) → MultiDragGestureRecognizer - Provides the gesture recognizer used to indicate the start of a reordering drag operation.
-
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}) → 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