meter class final
The <meter> HTML element represents either a scalar value within a known range or a fractional value.
- Inheritance
Constructors
-
meter(List<
Component> children, {double? value, double? min, double? max, double? low, double? high, double? optimum, String? id, String? classes, Styles? styles, Map<String, String> ? attributes, Map<String, EventCallback> ? events, Key? key}) -
The <meter> HTML element represents either a scalar value within a known range or a fractional value.
const
Properties
-
attributes
→ Map<
String, String> ? -
Additional attributes to apply to the HTML element.
final
-
children
→ List<
Component> -
The children of this component.
final
- classes → String?
-
The CSS classes to apply to the HTML element, separated by whitespace.
final
-
events
→ Map<
String, EventCallback> ? -
Event listeners to attach to the HTML element.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- high → double?
-
The lower numeric bound of the high end of the measured range. This must be less than the maximum value (max attribute), and it also must be greater than the low value and minimum value (low attribute and min attribute, respectively), if any are specified. If unspecified, or if greater than the maximum value, the high value is equal to the maximum value.
final
- id → String?
-
The id of the HTML element. Must be unique within the document.
final
- key → Key?
-
Controls how one component replaces another component in the tree.
finalinherited
- low → double?
-
The upper numeric bound of the low end of the measured range. This must be greater than the minimum value (min attribute), and it also must be less than the high value and maximum value (high attribute and max attribute, respectively), if any are specified. If unspecified, or if less than the minimum value, the low value is equal to the minimum value.
final
- max → double?
-
The upper numeric bound of the measured range. This must be greater than the minimum value (min attribute), if specified. If unspecified, the maximum value is 1.
final
- min → double?
-
The lower numeric bound of the measured range. This must be less than the maximum value (max attribute), if specified. If unspecified, the minimum value is 0.
final
- optimum → double?
-
Indicates the optimal numeric value. It must be within the range (as defined by the min attribute and max attribute). When used with the low attribute and high attribute, it gives an indication where along the range is considered preferable. For example, if it is between the min attribute and the low attribute, then the lower range is considered preferred. The browser may color the meter's bar differently depending on whether the value is less than or equal to the optimum value.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- styles → Styles?
-
The inline styles to apply to the HTML element.
final
- value → double?
-
The current numeric value. This must be between the minimum and maximum values (min attribute and max attribute) if they are specified. If unspecified or malformed, the value is 0. If specified, but not within the range given by the min attribute and max attribute, the value is equal to the nearest end of the range.
final
Methods
-
build(
BuildContext context) → Component -
Describes the part of the user interface represented by this component.
override
-
createElement(
) → Element -
Creates a StatelessElement to manage this component's location in the tree.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
shouldRebuild(
covariant Component newComponent) → bool -
Implement this method to determine whether a rebuild can be skipped.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited