ReorderableRow class

Reorderable (drag and drop) version of Row, a widget that displays its draggable children in horizontally.

In addition to other parameters in Row's constructor, this widget also has header and footer for placing non-reorderable widgets at the top and bottom of the widget, and buildDraggableFeedback to customize the feedback widget of the internal LongPressDraggable.

The onReorder function must be defined. A typical onReorder function looks like the following:

void _onReorder(int oldIndex, int newIndex) {
  setState(() {
    Widget row = _rows.removeAt(oldIndex);
    _rows.insert(newIndex, row);
  });
}

All children must have a key.

See also:

Inheritance

Constructors

ReorderableRow({required ReorderCallback onReorder, Key? key, Widget? header, Widget? footer, EdgeInsets? padding, MainAxisAlignment mainAxisAlignment = MainAxisAlignment.start, MainAxisSize mainAxisSize = MainAxisSize.max, CrossAxisAlignment crossAxisAlignment = CrossAxisAlignment.center, TextDirection? textDirection, VerticalDirection verticalDirection = VerticalDirection.down, TextBaseline? textBaseline, List<Widget> children = const <Widget>[], BuildDraggableFeedback? buildDraggableFeedback, NoReorderCallback? onNoReorder, ReorderStartedCallback? onReorderStarted, ScrollController? scrollController, bool needsLongPressDraggable = true, double draggingWidgetOpacity = 0.2, Duration? reorderAnimationDuration, Duration? scrollAnimationDuration, Widget draggedItemBuilder(BuildContext context, int index)?, bool ignorePrimaryScrollController = false})

Properties

buildDraggableFeedback → BuildDraggableFeedback?
finalinherited
buildItemsContainer → BuildItemsContainer?
finalinherited
children → List<Widget>
The widgets to display.
finalinherited
direction → Axis
The Axis along which the list scrolls.
finalinherited
draggedItemBuilder → (Widget Function(BuildContext context, int index)?)
finalinherited
draggingWidgetOpacity → double
finalinherited
A non-reorderable footer widget to show after the list.
finalinherited
hashCode → int
The hash code for this object.
no setterinherited
A non-reorderable header widget to show before the list.
finalinherited
ignorePrimaryScrollController → bool
finalinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
mainAxisAlignment → MainAxisAlignment
finalinherited
needsLongPressDraggable → bool
finalinherited
onNoReorder → NoReorderCallback?
finalinherited
onReorder → ReorderCallback
Called when a child is dropped into a new position to shuffle the children.
finalinherited
onReorderStarted → ReorderStartedCallback?
Called when the draggable starts being dragged.
finalinherited
padding → EdgeInsets?
The amount of space by which to inset the children.
finalinherited
reorderAnimationDuration → Duration?
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
scrollAnimationDuration → Duration?
finalinherited
scrollController → ScrollController?
finalinherited
scrollDirection → Axis
finalinherited

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → _ReorderableFlexState
Creates the mutable state for this widget at a given 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
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