InputSpinner<T extends num> class

Provides a spinner to set a value between min and max.

Setting the value is performed by two buttons for decreasing and increasing the value. The value will be changed with each click by (max - min) / divisions. To have value of type int supply generic int.



InputSpinner({Key key, bool autovalidate = false, int divisions = 100, InputDecoration decoration, bool enabled, IconData iconDecrease = Icons.remove_circle, Color iconDecreaseColor, IconData iconIncrease = Icons.add_circle, Color iconIncreaseColor, T initialValue, Map<String, dynamic> map, num min = 0.0, num max = 100.0, ValueChanged<T> onChanged, ValueSetter<T> onSaved, String path, double size = 25.0, List<InputValidator> validators, bool wantKeepAlive = false})


autosave bool
Automatically saves a changed value. If autovalidate is true then a changed value will only be saved if there is no validation failure. Also invokes method onSaved. Default is true.
final, inherited
autovalidate bool
Automatically validates any change and updates error text accordingly. Default is false.
final, inherited
decoration InputDecoration
Decoration for the input field supplying frame, label, error text, ...
final, inherited
divisions int
enabled bool
Whether the field accepts user input. Default is true.
final, inherited
hashCode int
The hash code for this object. [...]
@nonVirtual, read-only, inherited
iconDecrease IconData
iconDecreaseColor Color
iconIncrease IconData
iconIncreaseColor Color
initialValue → T
The fields value will initially be set to this initialValue.
final, inherited
interval num
key Key
Controls how one widget replaces another widget in the tree. [...]
final, inherited
map Map<String, dynamic>
map is used together with path to provide the initial value from and to save changes to the map. This parameter supersedes parameter map given to an InputForm ancestor.
final, inherited
max num
min num
onChanged ValueSetter<T>
An optional method to call on every change of the fields value.
final, inherited
onSaved ValueSetter<T>
An optional method to call with the final value when the form is saved through
final, inherited
path String
The path to the fields value in map. If the form is nested then path elements must be dot separated.
final, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
size double
validators List<InputValidator>
Methods that validate an input. The first failed validation will return an error string and no more validations will happen. [...]
final, inherited
wantKeepAlive bool
true will keep the state of all input fields within the same Slider even when the widget is scrolled out of view.
final, inherited


createElement() StatefulElement
Creates a StatefulElement to manage this widget's location in the tree. [...]
createState() → _InputSpinnerState<T>
Creates the mutable state for this widget at a given location in the tree. [...]
debugDescribeChildren() List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children. [...]
@protected, inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node. [...]
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
toDiagnosticsNode({String name, DiagnosticsTreeStyle style}) DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep. [...]
toString({DiagnosticLevel minLevel =}) String
A string representation of this object. [...]
toStringDeep({String prefixLineOne = '', String prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug}) String
Returns a string representation of this node and its descendants. [...]
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) String
Returns a one-line detailed description of the object. [...]
toStringShort() String
A short, textual description of this widget.


operator ==(Object other) bool
The equality operator. [...]
@nonVirtual, inherited