ReorderableListState class Null safety

The state for a list that allows the user to interactively reorder the list items.

An app that needs to start a new item drag or cancel an existing one can refer to the ReorderableList's state with a global key:

GlobalKey<ReorderableListState> listKey = GlobalKey<ReorderableListState>();
...
ReorderableList(key: listKey, ...);
...
listKey.currentState.cancelReorder();
Inheritance

Constructors

ReorderableListState()

Properties

context BuildContext
The location in the tree where this widget builds. [...]
read-only, inherited
hashCode int
The hash code for this object. [...]
read-only, inherited
mounted bool
Whether this State object is currently in a tree. [...]
read-only, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
widget ReorderableList
The current configuration. [...]
read-only, inherited

Methods

build(BuildContext context) Widget
Describes the part of the user interface represented by this widget. [...]
override
cancelReorder() → void
Cancel any item drag in progress. [...]
deactivate() → void
Called when this object is removed from the tree. [...]
@mustCallSuper, @protected, inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node. [...]
inherited
didChangeDependencies() → void
Called when a dependency of this State object changes. [...]
@mustCallSuper, @protected, inherited
didUpdateWidget(covariant ReorderableList oldWidget) → void
Called whenever the widget configuration changes. [...]
@mustCallSuper, @protected, inherited
dispose() → void
Called when this object is removed from the tree permanently. [...]
@mustCallSuper, @protected, inherited
initState() → void
Called when this object is inserted into the tree. [...]
@mustCallSuper, @protected, inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
reassemble() → void
Called whenever the application is reassembled during debugging, for example during hot reload. [...]
@mustCallSuper, @protected, inherited
setState(VoidCallback fn) → void
Notify the framework that the internal state of this object has changed. [...]
@protected, inherited
startItemDragReorder({required int index, required PointerDownEvent event, required MultiDragGestureRecognizer<MultiDragPointerState> recognizer}) → void
Initiate the dragging of the item at index that was started with the pointer down event. [...]
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
toStringShort() String
A brief description of this object, usually just the runtimeType and the hashCode. [...]
inherited

Operators

operator ==(Object other) bool
The equality operator. [...]
inherited