MaterialSwitchTrackAndThumb final#

final class MaterialSwitchTrackAndThumb

Internal widget that renders the track + thumb (with animations) and provides the thumb center for state-layer positioning.

Constructors#

MaterialSwitchTrackAndThumb() const#

const MaterialSwitchTrackAndThumb({ dynamic key, required dynamic tokens, required dynamic trackColor, required dynamic outlineColor, required double outlineWidth, required dynamic thumbColor, required dynamic thumbIcon, required dynamic thumbIconColor, required bool hasIcon, required bool isDragging, required bool isPressed, required bool isRtl, required bool visualValue, required double? dragT, required Duration animationDuration, required Duration thumbToggleDuration, required dynamic stateLayerColor, required bool showStateLayer, required dynamic slots, required dynamic spec, required dynamic state, })

Implementation

const MaterialSwitchTrackAndThumb({
  super.key,
  required this.tokens,
  required this.trackColor,
  required this.outlineColor,
  required this.outlineWidth,
  required this.thumbColor,
  required this.thumbIcon,
  required this.thumbIconColor,
  required this.hasIcon,
  required this.isDragging,
  required this.isPressed,
  required this.isRtl,
  required this.visualValue,
  required this.dragT,
  required this.animationDuration,
  required this.thumbToggleDuration,
  required this.stateLayerColor,
  required this.showStateLayer,
  required this.slots,
  required this.spec,
  required this.state,
});

Properties#

animationDuration final#

final Duration animationDuration

Implementation

final Duration animationDuration;

dragT final#

final double? dragT

Implementation

final double? dragT;

hashCode no setter inherited#

int get hashCode

The hash code for this object.

A hash code is a single integer which represents the state of the object that affects operator == comparisons.

All objects have hash codes. The default hash code implemented by Object represents only the identity of the object, the same way as the default operator == implementation only considers objects equal if they are identical (see identityHashCode).

If operator == is overridden to use the object state instead, the hash code must also be changed to represent that state, otherwise the object cannot be used in hash based data structures like the default Set and Map implementations.

Hash codes must be the same for objects that are equal to each other according to operator ==. The hash code of an object should only change if the object changes in a way that affects equality. There are no further requirements for the hash codes. They need not be consistent between executions of the same program and there are no distribution guarantees.

Objects that are not equal are allowed to have the same hash code. It is even technically allowed that all instances have the same hash code, but if clashes happen too often, it may reduce the efficiency of hash-based data structures like HashSet or HashMap.

If a subclass overrides hashCode, it should override the operator == operator as well to maintain consistency.

Inherited from Object.

Implementation

external int get hashCode;

hasIcon final#

final bool hasIcon

Implementation

final bool hasIcon;

isDragging final#

final bool isDragging

Implementation

final bool isDragging;

isPressed final#

final bool isPressed

Implementation

final bool isPressed;

isRtl final#

final bool isRtl

Implementation

final bool isRtl;

outlineColor final#

final dynamic outlineColor

Implementation

final Color outlineColor;

outlineWidth final#

final double outlineWidth

Implementation

final double outlineWidth;

runtimeType no setter inherited#

Type get runtimeType

A representation of the runtime type of the object.

Inherited from Object.

Implementation

external Type get runtimeType;

showStateLayer final#

final bool showStateLayer

Implementation

final bool showStateLayer;

slots final#

final dynamic slots

Implementation

final RSwitchSlots? slots;

spec final#

final dynamic spec

Implementation

final RSwitchSpec spec;

state final#

final dynamic state

Implementation

final RSwitchState state;

stateLayerColor final#

final dynamic stateLayerColor

Implementation

final Color? stateLayerColor;

thumbColor final#

final dynamic thumbColor

Implementation

final Color thumbColor;

thumbIcon final#

final dynamic thumbIcon

Implementation

final Widget? thumbIcon;

thumbIconColor final#

final dynamic thumbIconColor

Implementation

final Color thumbIconColor;

thumbToggleDuration final#

final Duration thumbToggleDuration

Implementation

final Duration thumbToggleDuration;

tokens final#

final dynamic tokens

Implementation

final RSwitchResolvedTokens tokens;

trackColor final#

final dynamic trackColor

Implementation

final Color trackColor;

visualValue final#

final bool visualValue

Implementation

final bool visualValue;

Methods#

createState()#

dynamic createState()

Implementation

@override
State<MaterialSwitchTrackAndThumb> createState() =>
    _MaterialSwitchTrackAndThumbState();

noSuchMethod() inherited#

dynamic noSuchMethod(Invocation invocation)

Invoked when a nonexistent method or property is accessed.

A dynamic member invocation can attempt to call a member which doesn't exist on the receiving object. Example:

dynamic object = 1;
object.add(42); // Statically allowed, run-time error

This invalid code will invoke the noSuchMethod method of the integer 1 with an Invocation representing the .add(42) call and arguments (which then throws).

Classes can override noSuchMethod to provide custom behavior for such invalid dynamic invocations.

A class with a non-default noSuchMethod invocation can also omit implementations for members of its interface. Example:

class MockList<T> implements List<T> {
  noSuchMethod(Invocation invocation) {
    log(invocation);
    super.noSuchMethod(invocation); // Will throw.
  }
}
void main() {
  MockList().add(42);
}

This code has no compile-time warnings or errors even though the MockList class has no concrete implementation of any of the List interface methods. Calls to List methods are forwarded to noSuchMethod, so this code will log an invocation similar to Invocation.method(#add, [42]) and then throw.

If a value is returned from noSuchMethod, it becomes the result of the original invocation. If the value is not of a type that can be returned by the original invocation, a type error occurs at the invocation.

The default behavior is to throw a NoSuchMethodError.

Inherited from Object.

Implementation

@pragma("vm:entry-point")
@pragma("wasm:entry-point")
external dynamic noSuchMethod(Invocation invocation);

toString() inherited#

String toString()

A string representation of this object.

Some classes have a default textual representation, often paired with a static parse function (like int.parse). These classes will provide the textual representation as their string representation.

Other classes have no meaningful textual representation that a program will care about. Such classes will typically override toString to provide useful information when inspecting the object, mainly for debugging or logging.

Inherited from Object.

Implementation

external String toString();

Operators#

operator ==() inherited#

bool operator ==(Object other)

The equality operator.

The default behavior for all Objects is to return true if and only if this object and other are the same object.

Override this method to specify a different equality relation on a class. The overriding method must still be an equivalence relation. That is, it must be:

Total: It must return a boolean for all arguments. It should never throw.
Reflexive: For all objects o, o == o must be true.
Symmetric: For all objects o1 and o2, o1 == o2 and o2 == o1 must either both be true, or both be false.
Transitive: For all objects o1, o2, and o3, if o1 == o2 and o2 == o3 are true, then o1 == o3 must be true.

The method should also be consistent over time, so whether two objects are equal should only change if at least one of the objects was modified.

If a subclass overrides the equality operator, it should override the hashCode method as well to maintain consistency.

Inherited from Object.

Implementation

external bool operator ==(Object other);