DesktopPaneLayout class

Displays 3 panes: content, a left pane, and a right pane - the left and right panes are optional.

This widget demonstrates how to create a slotted multi-child render object. A slotted render object is one in which each child has a unique name/property, rather than belonging to an unbounded List or other collection.

Slotted render objects are easier to create than collection-based render objects because slotted render object (and their elements) don't need to search through their children, or worry about optimizing which children are inflated at any given moment in time.

Note: A render object can combine slotted children with child collections - you don't have to pick just one or the other.

Inheritance

• Object
• DiagnosticableTree
• Widget
• RenderObjectWidget
• SlottedMultiChildRenderObjectWidget<DesktopPaneSlot, RenderBox>
• DesktopPaneLayout

Constructors

DesktopPaneLayout({Key? key, required Widget contentPane, Widget? leftPane, Widget? rightPane})

const

Properties

contentPane → Widget

final

hashCode → int

The hash code for this object.

no setter, inherited

key → Key?

Controls how one widget replaces another widget in the tree.

final, inherited

leftPane → Widget?

final

rightPane → Widget?

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

slots → Iterable<DesktopPaneSlot>

Returns a list of all available slots.

no setter, override

Methods

childForSlot(DesktopPaneSlot slot) → Widget?

Returns the widget that is currently occupying the provided slot.

override

createElement() → SlottedRenderObjectElement<DesktopPaneSlot, RenderBox>

RenderObjectWidgets always inflate to a RenderObjectElement subclass.

inherited

createRenderObject(BuildContext context) → RenderDesktopPaneLayout

Creates an instance of the RenderObject class that this RenderObjectWidget represents, using the configuration described by this RenderObjectWidget.

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

didUnmountRenderObject(covariant RenderObject renderObject) → void

This method is called when a RenderObject that was previously associated with this widget is removed from the render tree. The provided RenderObject will be of the same type as the one created by this widget's createRenderObject method.

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

updateRenderObject(BuildContext context, covariant RenderDesktopPaneLayout renderObject) → void

Copies the configuration described by this RenderObjectWidget to the given RenderObject, which will be of the same type as returned by this object's createRenderObject.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited