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
Properties
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