FrictionConfig class

Per-state friction during an active gesture.

Progress dimension: depth into the bound state (0 = entering, 1 = at the state's far edge). extending/retracting: motion deeper into the bound vs back toward origin. *PastDisplay: while the rect is outside the display area.

Available extensions

• FrictionConfigByDirection

Constructors

FrictionConfig({Friction? extending, Friction? extendingPastDisplay, Friction? retracting, Friction? retractingPastDisplay})

const

FrictionConfig.byDirection({required Friction? extending, required Friction? retracting})

Direction-grouped: in-display and past-display states share the same ramp per direction.

const

FrictionConfig.byZone({required Friction inDisplay, required Friction pastDisplay})

Group by zone: inDisplay applies to both extending and retracting while the rect's edge is inside the display; pastDisplay applies to both once the edge has crossed.

const

FrictionConfig.uniform(Friction friction)

Same Friction for all four states.

const

Properties

extending → Friction?

final

extendingPastDisplay → Friction?

final

hashCode → int

The hash code for this object.

no setter, inherited

retracting → Friction?

final

retractingPastDisplay → Friction?

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

copyWith({Friction? extending, Friction? extendingPastDisplay, Friction? retracting, Friction? retractingPastDisplay}) → FrictionConfig

forDirection(DragDirectionState direction) → Friction?

Available on FrictionConfig, provided by the FrictionConfigByDirection extension

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