ResponsiveLayoutBuilder class

A responsive builder that provides DeviceType along with BoxConstraints.

Like ResponsiveLayout, this uses LayoutBuilder and responds to parent constraints. The DeviceType is resolved from constraint width using config-driven breakpoints.

ResponsiveLayoutBuilder(
  builder: (context, constraints, deviceType) {
    return switch (deviceType) {
      DeviceType.mobile => MobileView(),
      DeviceType.tablet => TabletView(),
      _ => DesktopView(),
    };
  },
)
Inheritance
Available extensions

Constructors

ResponsiveLayoutBuilder({Key? key, required Widget builder(BuildContext context, BoxConstraints constraints, DeviceType deviceType)})
const

Properties

builder → Widget Function(BuildContext context, BoxConstraints constraints, DeviceType deviceType)
Builder that receives the current BuildContext, BoxConstraints, and resolved DeviceType based on constraint width.
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

adaptiveConstrained(BuildContext context) → Widget

Available on Widget, provided by the ResponsiveConstraints extension

Responsive constraint based on device type, using config-driven max widths.
build(BuildContext context) → Widget
Describes the part of the user interface represented by this widget.
override
constrained({double maxWidth = 800}) → Widget

Available on Widget, provided by the ResponsiveConstraints extension

Centers the widget and ensures its width does not exceed maxWidth.
constrainedBoth({double maxWidth = 800, double maxHeight = 600}) → Widget

Available on Widget, provided by the ResponsiveConstraints extension

Constrains widget with both max width and height.
createElement() → StatelessElement
Creates a StatelessElement to manage this widget's location in the tree.
inherited
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