SpinButton<T extends Comparable> class
A widget that allows the user to increment and decrement a value
Displays a value (built using the provided labelCallback), with buttons on either side to increment / decrement the value.
The change in value is animated based on whether it increased or decreased.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- SpinButton
Constructors
-
SpinButton({Key? key, required T? value, required LabelWidgetCallback<
T> labelCallback, Widget? incrementIcon, Widget? decrementIcon, InputDecoration? decoration, FocusNode? incrementFocusNode, FocusNode? decrementFocusNode, bool incrementAutofocus = false, bool decrementAutofocus = false, required VoidCallback? onIncrementPressed, required VoidCallback? onDecrementPressed}) -
const
Properties
- decoration → InputDecoration?
-
final
- decrementAutofocus → bool
-
final
- decrementFocusNode → FocusNode?
-
final
- decrementIcon → Widget?
-
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- incrementAutofocus → bool
-
final
- incrementFocusNode → FocusNode?
-
final
- incrementIcon → Widget?
-
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
-
labelCallback
→ LabelWidgetCallback<
T> -
final
- onDecrementPressed → VoidCallback?
-
final
- onIncrementPressed → VoidCallback?
-
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- value → T?
-
final
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< SpinButton< T> > -
Creates the mutable state for this widget at a given location in the tree.
override
-
debugDescribeChildren(
) → List< DiagnosticsNode> -
Returns a list of DiagnosticsNode objects describing this node's
children.
inherited
-
debugFillProperties(
DiagnosticPropertiesBuilder properties) → void -
Add additional properties associated with the node.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent 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 DiagnosticsNode.toStringDeep.
inherited
-
toString(
{DiagnosticLevel minLevel = DiagnosticLevel.info}) → String -
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 ==(
Object other) → bool -
The equality operator.
inherited