DragSortView class Null safety

Drag sort view. Similar to the dynamic nine grid of weiBo / weChat publishing. It supports pressing the zoom effect, dragging and sorting, and dragging to the specified location to delete.

Inheritance

Constructors

DragSortView(List<DragBean> data, {Key? key, double? width, double space = 5, EdgeInsets padding = EdgeInsets.zero, EdgeInsets margin = EdgeInsets.zero, required IndexedWidgetBuilder itemBuilder, required WidgetBuilder initBuilder, OnDragListener? onDragListener})
create DragSortView. It is recommended to use a thumbnail picture,because the original picture is too large, it may cause repeated loading and cause flashing. 建议使用略微缩图,因为原图太大可能会引起重复加载导致闪动.

Properties

data List<DragBean>
picture data.
final
hashCode int
The hash code for this object.
@nonVirtualread-onlyinherited
initBuilder WidgetBuilder
Called to build init children for the view.
final
itemBuilder IndexedWidgetBuilder
Called to build children for the view.
final
key Key?
Controls how one widget replaces another widget in the tree.
finalinherited
margin EdgeInsets
View margin.
final
onDragListener OnDragListener?
On drag listener.
final
padding EdgeInsets
View padding.
final
runtimeType Type
A representation of the runtime type of the object.
read-onlyinherited
space double
The number of logical pixels between each child.
final
width double?
View width.
final

Methods

createElement() StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() State<StatefulWidget>
Creates the mutable state for this widget at a given location in the tree.
override
debugDescribeChildren() List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
@protectedinherited
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.
@nonVirtualinherited