MaterialColor class Null safety
Defines a single color as well a color swatch with ten shades of the color.
The color's shades are referred to by index. The greater the index, the darker the color. There are 10 valid indices: 50, 100, 200, ..., 900. The value of this color should the same the value of index 500 and shade500.
See also:
- Colors, which defines all of the standard material colors.
- Inheritance
-
- Object
- Color
- ColorSwatch<
int> - MaterialColor
Constructors
-
MaterialColor(int primary, Map<
int, Color> swatch) -
Creates a color swatch with a variety of shades.
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
- green → int
-
The green channel of this color in an 8 bit value.
read-onlyinherited
- hashCode → int
-
The hash code for this object.
read-onlyinherited
- 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
- shade50 → Color
-
The lightest shade.
read-only
- shade100 → Color
-
The second lightest shade.
read-only
- shade200 → Color
-
The third lightest shade.
read-only
- shade300 → Color
-
The fourth lightest shade.
read-only
- shade400 → Color
-
The fifth lightest shade.
read-only
- shade500 → Color
-
The default shade.
read-only
- shade600 → Color
-
The fourth darkest shade.
read-only
- shade700 → Color
-
The third darkest shade.
read-only
- shade800 → Color
-
The second darkest shade.
read-only
- shade900 → Color
-
The darkest shade.
read-only
- value → int
-
A 32 bit value representing this color.
finalinherited
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.
inherited
-
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.
inherited
-
operator [](
int index) → Color? -
Returns an element of the swatch table.
inherited