CupertinoSlider class

An iOS-style slider.

Used to select from a range of values.

A slider can be used to select from either a continuous or a discrete set of values. The default is use a continuous range of values from min to max. To use discrete values, use a non-null value for divisions, which indicates the number of discrete intervals. For example, if min is 0.0 and max is 50.0 and divisions is 5, then the slider can take on the values discrete values 0.0, 10.0, 20.0, 30.0, 40.0, and 50.0.

The slider itself does not maintain any state. Instead, when the state of the slider changes, the widget calls the onChanged callback. Most widgets that use a slider will listen for the onChanged callback and rebuild the slider with a new value to update the visual appearance of the slider.

See also:

Inheritance

Constructors

CupertinoSlider({Key key, @required double value, @required ValueChanged<double> onChanged, ValueChanged<double> onChangeStart, ValueChanged<double> onChangeEnd, double min: 0.0, double max: 1.0, int divisions, Color activeColor })
Creates an iOS-style slider. [...]
const

Properties

activeColor → Color
The color to use for the portion of the slider that has been selected. [...]
final
divisions → int
The number of discrete divisions. [...]
final
max → double
The maximum value the user can select. [...]
final
min → double
The minimum value the user can select. [...]
final
onChanged → ValueChanged<double>
Called when the user selects a new value for the slider. [...]
final
onChangeEnd → ValueChanged<double>
Called when the user is done selecting a new value for the slider. [...]
final
onChangeStart → ValueChanged<double>
Called when the user starts selecting a new value for the slider. [...]
final
value → double
The currently selected value for this slider. [...]
final
hashCode → int
The hash code for this object. [...]
read-only, inherited
key → Key
Controls how one widget replaces another widget in the tree. [...]
final, inherited
runtimeType → Type
A representation of the runtime type of the object.
read-only, inherited

Methods

createState() → _CupertinoSliderState
Creates the mutable state for this widget at a given location in the tree. [...]
override
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node. [...]
override
createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree. [...]
inherited
debugDescribeChildren() → List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children. [...]
@protected, inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
toDiagnosticsNode({String name, DiagnosticsTreeStyle style }) → DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by toStringDeep. [...]
inherited
toString({DiagnosticLevel minLevel: DiagnosticLevel.debug }) → String
Returns a string representation of this object.
inherited
toStringDeep({String prefixLineOne: '', String prefixOtherLines, DiagnosticLevel minLevel: DiagnosticLevel.debug }) → String
Returns a string representation of this node and its descendants. [...]
inherited
toStringShallow({String joiner: ', ', DiagnosticLevel minLevel: DiagnosticLevel.debug }) → String
Returns a one-line detailed description of the object. [...]
inherited
toStringShort() → String
A short, textual description of this widget.
inherited

Operators

operator ==(dynamic other) → bool
The equality operator. [...]
inherited