dimension library

CSS-like lengths (px, %, vw, vh, vmin, vmax) for Flutter, with min/max/clamp expressions, tweening, serialization and the DimensionSizedBox / AnimatedDimensionSizedBox widgets.

Classes

AnimatedDimensionSizedBox

Animated version of DimensionSizedBox which automatically transitions the width and height over duration whenever they change.

Dimension

Base class of Dimension. Convert to actual px value by calling the toPX() function and provide a constraint value and the screen size.

DimensionSizedBox

Creates a widget that sizes its child to two possible Dimension values If this widget is placed in a infinite constraint environment and either the width or height has percent unit, the constraint is clamped to the size of the screen.

DimensionTween

A Tween between two dimensions, see Dimension.lerp.

Length

This is the one actually used by users. Contains a value and a unit

RenderDimensionSizedBox

Enums

LengthUnit

The CSS-like unit of a Length.

Extensions

DoubleRoundingExtension on double

Rounding and alignment helpers on double.

DoubleToLengthExtension on double

extension for creating Length instance from double or int

IntToLengthExtension on int

extension for creating Length instance from double or int

Constants

lengthUnitMap → const Map<String, LengthUnit>

The serialized symbol of each LengthUnit.

Functions

parseDimension(dynamic input) → Dimension?

Parses the output of Dimension.toJson back into a Dimension.

parseLength(String? string) → Length?

Same as Length.fromJson.

parseLengthUnit(String? unit) → LengthUnit?

Returns the LengthUnit for a symbol of lengthUnitMap, ignoring surrounding whitespace, or null if unit is null or unknown.