A shadow cast by a box.

BoxShadow can cast non-rectangular shadows if the box is non-rectangular (e.g., has a border radius or a circular shape).

This class is similar to CSS box-shadow.

Annotations
  • @immutable

Constructors

BoxShadow({Color color: const Color(0xFF000000), Offset offset: Offset.zero, double blurRadius: 0.0, double spreadRadius: 0.0 })
Creates a box shadow. [...]
const

Properties

blurRadius double
The standard deviation of the Gaussian to convolve with the box's shape.
final
blurSigma double
The blurRadius in sigmas instead of logical pixels. [...]
read-only
color Color
The color of the shadow.
final
hashCode int
The hash code for this object. [...]
@override, read-only
offset Offset
The displacement of the shadow from the box.
final
spreadRadius double
The amount the box should be inflated prior to applying the blur.
final
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

scale(double factor) BoxShadow
Returns a new box shadow with its offset, blurRadius, and spreadRadius scaled by the given factor.
toString() String
Returns a string representation of this object.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited

Operators

operator ==(other) bool
The equality operator. [...]

Static Methods

convertRadiusToSigma(double radius) double
Converts a blur radius in pixels to sigmas. [...]
lerp(BoxShadow a, BoxShadow b, double t) BoxShadow
Linearly interpolate between two box shadows. [...]
lerpList(List<BoxShadow> a, List<BoxShadow> b, double t) List<BoxShadow>
Linearly interpolate between two lists of box shadows. [...]