CounterField class
The allows a user to increase or decrease a numerical value.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- CounterField
Constructors
-
CounterField({Key? key, required ValueChanged<
int> onChanged, required int value, Widget decrementIcon = const Icon(Icons.remove_circle), String errorText = '', bool hasError = false, Widget incrementIcon = const Icon(Icons.add_circle), String? labelText}) -
The allows a user to increase or decrease a numerical value.
const
Properties
- decrementIcon → Widget
-
The icon used in the decrement position.
final
- errorText → String
-
Text show when there is an error.
final
- hasError → bool
-
Determines if an error is shown.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- incrementIcon → Widget
-
The icon used in the increment position.
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- labelText → String?
-
Optional text that describes the input field.
final
-
onChanged
→ ValueChanged<
int> -
Called whenever the value changes.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- value → int
-
The value of this counter.
final
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< CounterField> -
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