EmergentSwitch class

Used to toggle the on/off state of a single setting.

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

 bool _switch1Value = false;
 bool _switch2Value = false;

 Widget _buildSwitches() {
   return Row(children: <Widget>[

     EmergentSwitch(
       value: _switch1Value,
       style: EmergentSwitchStyle(
         thumbShape: EmergentShape.concave,
       ),
       onChanged: (value) {
         setState(() {
           _switch1Value = value;
         });
       },
     ),

     EmergentSwitch(
       value: _switch2Value,
       style: EmergentSwitchStyle(
         thumbShape: EmergentShape.flat,
       ),
       onChanged: (value) {
         setState(() {
           _switch2Value = value;
         });
       },
     ),

   ]);
 }

Inheritance

Annotations

@immutable

Constructors

EmergentSwitch({EmergentSwitchStyle style = const EmergentSwitchStyle(), Key? key, Curve curve = Emergent.defaultCurve, Duration duration = const Duration(milliseconds: 200), bool value = false, ValueChanged<bool>? onChanged, double height = 40, bool isEnabled = true}): const

Properties

curve → Curve: final
duration → Duration: final
hashCode → int: The hash code for this object.
no setterinherited
height → double: final
isEnabled → bool: final
key → Key?: Controls how one widget replaces another widget in the tree.
finalinherited
onChanged → ValueChanged<bool>?: final
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
style → EmergentSwitchStyle: final
value → bool: final

Methods

build(BuildContext context) → Widget: Describes the part of the user interface represented by this widget.
override
createElement() → StatelessElement: Creates a StatelessElement to manage this widget's location in the tree.
inherited
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

Constants

minHcDepth → const double