ReorderableGridView class

Usage:

ReorderableGridView(
  crossAxisCount: 3,
  children: this.data.map((e) => buildItem("$e")).toList(),
  onReorder: (oldIndex, newIndex) {
    setState(() {
      final element = data.removeAt(oldIndex);
      data.insert(newIndex, element);
    });
  },
)

I think it's borrowing to pass those params. Will it to hard to calculate the position by delegator? not by crossAxis and spacing? And the SliverGridDelete need an constraint to get a layout but, I don't have the constraint, and that method look called by the framework. So I need the crossAxisCount, spacing to determine the pos.

Inheritance

Constructors

ReorderableGridView({Key? key, required ReorderCallback onReorder, DragWidgetBuilderV2? dragWidgetBuilderV2, ScrollSpeedController? scrollSpeedController, PlaceholderBuilder? placeholderBuilder, OnDragStart? onDragStart, OnDragUpdate? onDragUpdate, required SliverGridDelegate gridDelegate, required SliverChildDelegate childrenDelegate, bool restrictDragScope = false, bool reverse = false, bool? primary, ScrollPhysics? physics, bool shrinkWrap = false, EdgeInsetsGeometry? padding, double? cacheExtent, int? semanticChildCount, ScrollViewKeyboardDismissBehavior keyboardDismissBehavior = ScrollViewKeyboardDismissBehavior.manual, String? restorationId, Clip clipBehavior = Clip.hardEdge, ScrollController? controller, DragStartBehavior dragStartBehavior = DragStartBehavior.start, Duration? dragStartDelay, bool? dragEnabled})
const
ReorderableGridView.builder({Key? key, required ReorderCallback onReorder, ScrollSpeedController? scrollSpeedController, DragWidgetBuilder? dragWidgetBuilder, DragWidgetBuilderV2? dragWidgetBuilderV2, PlaceholderBuilder? placeholderBuilder, OnDragStart? onDragStart, OnDragUpdate? onDragUpdate, bool reverse = false, ScrollController? controller, bool? primary, ScrollPhysics? physics, bool shrinkWrap = false, EdgeInsetsGeometry? padding, required SliverGridDelegate gridDelegate, required IndexedWidgetBuilder itemBuilder, int? itemCount, bool addAutomaticKeepAlives = true, bool addRepaintBoundaries = true, bool addSemanticIndexes = true, double? cacheExtent, int? semanticChildCount, DragStartBehavior dragStartBehavior = DragStartBehavior.start, ScrollViewKeyboardDismissBehavior keyboardDismissBehavior = ScrollViewKeyboardDismissBehavior.manual, String? restorationId, Clip clipBehavior = Clip.hardEdge, Duration? dragStartDelay, bool? dragEnabled, bool restrictDragScope = false})
ReorderableGridView.count({Key? key, required ReorderCallback onReorder, DragWidgetBuilder? dragWidgetBuilder, DragWidgetBuilderV2? dragWidgetBuilderV2, ScrollSpeedController? scrollSpeedController, PlaceholderBuilder? placeholderBuilder, OnDragStart? onDragStart, OnDragUpdate? onDragUpdate, List<Widget>? footer, List<Widget>? header, double mainAxisSpacing = 0.0, double crossAxisSpacing = 0.0, double childAspectRatio = 1.0, double? mainAxisExtent, bool reverse = false, ScrollController? controller, bool? primary, ScrollPhysics? physics, bool shrinkWrap = false, EdgeInsetsGeometry? padding, required int crossAxisCount, bool addAutomaticKeepAlives = true, bool addRepaintBoundaries = true, bool addSemanticIndexes = true, double? cacheExtent, List<Widget> children = const <Widget>[], int? semanticChildCount, DragStartBehavior dragStartBehavior = DragStartBehavior.start, ScrollViewKeyboardDismissBehavior keyboardDismissBehavior = ScrollViewKeyboardDismissBehavior.manual, String? restorationId, Clip clipBehavior = Clip.hardEdge, Duration? dragStartDelay, bool? dragEnabled, dynamic restrictDragScope = false})
factory

Properties

cacheExtent → double?
final
childrenDelegate → SliverChildDelegate
final
clipBehavior → Clip
final
controller → ScrollController?
final
dragEnabled → bool?
final
dragStartBehavior → DragStartBehavior
final
dragStartDelay → Duration?
final
dragWidgetBuilderV2 → DragWidgetBuilderV2?
final
gridDelegate → SliverGridDelegate
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
keyboardDismissBehavior → ScrollViewKeyboardDismissBehavior
final
onDragStart → OnDragStart?
final
onDragUpdate → OnDragUpdate?
final
onReorder → ReorderCallback
final
padding → EdgeInsetsGeometry?
final
physics → ScrollPhysics?
final
placeholderBuilder → PlaceholderBuilder?
final
primary → bool?
final
restorationId → String?
final
restrictDragScope → bool
final
reverse → bool
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
scrollSpeedController → ScrollSpeedController?
final
semanticChildCount → int?
final
shrinkWrap → bool
final

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
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