SystemColor class final
A color specified in the operating system UI color palette.
The static getters in this class, such as accentColor and buttonText, provide standard system colors defined by the W3C CSS specification.
As of the current release, system colors are supported on web only. To check
if the current platform supports system colors, use the static
platformProvidesSystemColors field. If the field is false, other
functions in this class will throw UnsupportedError.
This class is typically used in conjunction with AccessibilityFeatures.highContrast. In particular, on Windows, when a user enables high-contrast mode, they may also pick specific colors that should be used by application user interfaces. While it is common for applications to use custom color themes and design languages, in high-contrast mode it is recommended that widgets use system-specified colors to make content more legible for users.
See also:
Constructors
- SystemColor.new({required String name, Color? value})
-
Creates an instance of a system color.
const
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- isSupported → bool
-
Returns true if the current platform provides the system color with the
given name.
no setter
- name → String
-
Standard system color name, as defined by W3C CSS specification.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- value → Color?
-
The color value used for the color named name, if supported.
final
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Properties
- accentColor → SystemColor
-
Returns system color named "AccentColor".
no setter
- accentColorText → SystemColor
-
Returns system color named "AccentColorText".
no setter
- activeText → SystemColor
-
Returns system color named "ActiveText".
no setter
-
Returns system color named "ButtonBorder".
no setter
-
Returns system color named "ButtonFace".
no setter
-
Returns system color named "ButtonText".
no setter
- canvas → SystemColor
-
Returns system color named "Canvas".
no setter
- canvasText → SystemColor
-
Returns system color named "CanvasText".
no setter
- field → SystemColor
-
Returns system color named "Field".
no setter
- fieldText → SystemColor
-
Returns system color named "FieldText".
no setter
- grayText → SystemColor
-
Returns system color named "GrayText".
no setter
- highlight → SystemColor
-
Returns system color named "Highlight".
no setter
- highlightText → SystemColor
-
Returns system color named "HighlightText".
no setter
- linkText → SystemColor
-
Returns system color named "LinkText".
no setter
- mark → SystemColor
-
Returns system color named "Mark".
no setter
- markText → SystemColor
-
Returns system color named "MarkText".
no setter
- platformProvidesSystemColors → bool
-
Returns true if the current platform provides system colors.
no setter
- selectedItem → SystemColor
-
Returns system color named "SelectedItem".
no setter
- selectedItemText → SystemColor
-
Returns system color named "SelectedItemText".
no setter
- visitedText → SystemColor
-
Returns system color named "VisitedText".
no setter