ColorRef class Null safety

Inheritance
Implemented types
Available Extensions

Constructors

ColorRef(Color? defaultColor, {String? id})
const
ColorRef.fromId(String? id)
const

Properties

alpha int
The alpha channel of this color in an 8 bit value.
read-onlyinherited
blue int
The blue channel of this color in an 8 bit value.
read-onlyinherited
color Color
read-only
defaultColor Color?
final
green int
The green channel of this color in an 8 bit value.
read-onlyinherited
hashCode int
The hash code for this object.
read-onlyoverride
id String?
final
opacity double
The alpha channel of this color as a double.
read-onlyinherited
red int
The red channel of this color in an 8 bit value.
read-onlyinherited
runtimeType Type
A representation of the runtime type of the object.
read-onlyinherited
value int
A 32 bit value representing this color.
read-onlyoverride

Methods

computeLuminance() double
Returns a brightness value between 0 for darkest and 1 for lightest.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
inherited
toString() String
A string representation of this object.
override
withAlpha(int a) Color
Returns a new color that matches this color with the alpha channel replaced with a (which ranges from 0 to 255).
inherited
withBlue(int b) Color
Returns a new color that matches this color with the blue channel replaced with b (which ranges from 0 to 255).
inherited
withGreen(int g) Color
Returns a new color that matches this color with the green channel replaced with g (which ranges from 0 to 255).
inherited
withOpacity(double opacity) Color
Returns a new color that matches this color with the alpha channel replaced with the given opacity (which ranges from 0.0 to 1.0).
inherited
withRed(int r) Color
Returns a new color that matches this color with the red channel replaced with r (which ranges from 0 to 255).
inherited

Operators

operator ==(Object other) bool
The equality operator.
override

Static Methods

shadesOfGreyTransform(Color color) Color
Transform that removes the colors, leaving only shades of gray. Use it like this: Themed.setTransform(ColorRef.shadesOfGrey);