CustomDropdownAnimation class

Controls how the CustomDropdown overlay animates open and closed.

Constructors

CustomDropdownAnimation({DropdownAnimationType type = DropdownAnimationType.sizeFade, Duration duration = const Duration(milliseconds: 300), Duration? reverseDuration, Curve curve = Curves.easeOutCubic, Curve reverseCurve = Curves.easeInCubic, bool enabled = true, DropdownTransitionBuilder? builder, bool staggerItems = false, Duration itemStagger = const Duration(milliseconds: 60), Duration itemDuration = const Duration(milliseconds: 300)})

const

Properties

builder → DropdownTransitionBuilder?

Optional fully custom transition. When provided it takes precedence over type, receiving the curved animation, the open direction and the child.

final

curve → Curve

Curve used while opening.

final

duration → Duration

Duration of the opening animation.

final

enabled → bool

When false the overlay opens/closes instantly (no animation).

final

hashCode → int

The hash code for this object.

no setter, inherited

itemDuration → Duration

Duration of each list item's entrance animation. Only used when staggerItems is true.

final

itemStagger → Duration

Delay added per list item for the staggered entrance (capped for long lists). Only used when staggerItems is true.

final

reverseCurve → Curve

Curve used while closing.

final

reverseDuration → Duration?

Duration of the closing animation. Defaults to duration when null.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

staggerItems → bool

When true, list items fade + slide in with a cascading stagger each time the overlay opens. Ignored when enabled is false.

final

type → DropdownAnimationType

The built-in transition to use. Ignored when builder is provided.

final

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Constants

none → const CustomDropdownAnimation

No animation — the overlay appears/disappears instantly.