Layout class

A widget that generates the responsive layout data for its children.

It calculates a LayoutData according to the max width of this widget and the format definded.

This layout format is MaterialFormat by default, but it is possible to use BoostrapFormat or build your own LayoutFormat that defines how the layout should behave for different width sizes.

This LayoutData it is accesible from any widget down the tree through Layout.of(context) or context.layout

To generate responsive values for different sizes, use the following method context.layout.value(xs: 1, s:2, m: 3, l:4, xl:5)

See also:

• Margin A widget that adds a responsive padding to its child. This padding is calculated by Layout

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatefulWidget
• Layout

Constructors

Layout({Key? key, required Widget child, LayoutFormat? format})

const

Properties

child → Widget

final

format → LayoutFormat?

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

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

createElement() → StatefulElement

Creates a StatefulElement to manage this widget's location in the tree.

inherited

createState() → _LayoutState

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.

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

Static Methods

maybeOf(BuildContext context) → LayoutData?

of(BuildContext context) → LayoutData