SpeedDialBuilder<T> class

This widget can be used to create speed dial buttons of all kinds of styles.

The most Basic example of a typically vertical expanding speed dial button looks like this:

SpeedDialBuilder(
  buttonBuilder: (context, isActive, toggle) => FloatingActionButton(
    onPressed: toggle,
    child: Icon( isActive ? Icons.close : Icons.add )
  ),
  buttonAnchor: Alignment.topCenter,
  itemAnchor: Alignment.bottomCenter,
  itemBuilder: (context, Widget item, i, animation) => FractionalTranslation(
    translation: Offset(0, -i.toDouble()),
    child: ScaleTransition(
      scale: animation,
      child: item
    )
  ),
  items: [
    FloatingActionButton.small(
      onPressed: () {},
      child: const Icon(Icons.hub),
    ),
    ...
  ]
);

Checkout the example or readme of the project for further details and more advanced examples.

Inheritance

Constructors

SpeedDialBuilder({required SpeedDialButtonBuilder buttonBuilder, required SpeedDialItemBuilder<T> itemBuilder, required List<T> items, SpeedDialItemBuilder<T>? secondaryItemBuilder, Alignment buttonAnchor = Alignment.topCenter, Alignment itemAnchor = Alignment.topCenter, Offset offset = Offset.zero, double animationOverlap = 0.8, bool reverse = false, Duration duration = const Duration(milliseconds: 300), Duration reverseDuration = const Duration(milliseconds: 300), Curve curve = Curves.easeOutBack, Curve reverseCurve = Curves.easeOutBack, Key? key})
const

Properties

animationOverlap → double
A number from 0 to 1 defining the overlap ratio of the item animations.
final
buttonAnchor → Alignment
Specify the anchor point of the main button to which the items should be aligned to.
final
buttonBuilder → SpeedDialButtonBuilder
The main button builder. This will typically return a FloatingActionButton. However any widget with an intrinsic size might be returned here.
final
curve → Curve
Defines the curve of the incoming animation of each item. Setting this to linear allows you to specify different curves for every single item later.
final
duration → Duration
The incoming animation duration of a single item.
final
hashCode → int
The hash code for this object.
no setterinherited
itemAnchor → Alignment
Specify the anchor point of the items that will be snapped to the anchor point of the main button.
final
itemBuilder → SpeedDialItemBuilder<T>
The builder for the speed dial items. This will typically return a small FloatingActionButton. However any widget with an intrinsic size might be returned here.
final
items → List<T>
A list of items used by the itemBuilder and secondaryItemBuilder.
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
offset → Offset
A custom offset applied to each item.
final
reverse → bool
Define if the animation should start with the first or last item from the list.
final
reverseCurve → Curve
Defines the curve of the outgoing animation of each item. Setting this to linear allows you to specify different curves for every single item later.
final
reverseDuration → Duration
The outgoing animation duration of a single item.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
secondaryItemBuilder → SpeedDialItemBuilder<T>?
An optional secondary speed dial item builder. This can be used to build an additional widget per item like a label.
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<StatefulWidget>
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