PositionableWidget class

PositionableWidget窗口管理器; 可以层级切换;WindowManager配合; 自动完成拖动能力;

Inheritance

Constructors

PositionableWidget({Key? key, required Widget child, bool edgeAble = false, bool dragAble = false, bool indexAble = false, EdgeInsets edgeInsets = EdgeInsets.zero, double? right, double? left, double? top, double? bottom})

Properties

bottom double?
final
child Widget
final
dragAble bool
final
edgeAble bool
final
edgeInsets EdgeInsets
final
hashCode int
The hash code for this object.
no setterinherited
indexAble bool
final
key Key?
Controls how one widget replaces another widget in the tree.
finalinherited
left double?
final
final
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
top double?
final

Methods

createElement() StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() State<PositionableWidget>
widget中可能有多个PositionableWidget,当没有key时,自动添加一个以示区分;
override
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, int wrapWidth = 65}) 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