ReorderableDragStartListener class Null safety

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:

Inheritance
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.
@nonVirtual, read-only, inherited
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.
final, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

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.
@protected, inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent 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.
@nonVirtual, inherited