NibAnim class

An immutable snapshot of every visual property NibMotion can animate.

Each property is nullable: null means "this animation does not touch this property" rather than "set this property to zero/identity". During lerp, a null value on one side falls back to the corresponding identity value so animations only affect the properties the caller actually specifies.

Annotations

• @immutable

Constructors

NibAnim({double? x, double? y, double? scale, double? scaleX, double? scaleY, double? rotate, double? skewX, double? skewY, double? opacity, Color? color, BorderRadius? borderRadius, List<BoxShadow>? boxShadow})

Creates an animation snapshot. Any omitted property is left untouched by this animation.

const

Properties

borderRadius → BorderRadius?

Clip radius applied to the widget and its color/boxShadow.

final

boxShadow → List<BoxShadow>?

Shadows painted behind the widget.

final

color → Color?

Background color painted behind the child. null means transparent.

final

hashCode → int

The hash code for this object.

no setter, override

opacity → double?

Opacity from 0.0 (fully transparent) to 1.0 (fully opaque, identity).

final

rotate → double?

Rotation around the Z axis, in turns (1.0 == 360°).

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

scale → double?

Uniform scale applied to both axes. Identity is 1.0.

final

scaleX → double?

Horizontal scale. Identity is 1.0.

final

scaleY → double?

Vertical scale. Identity is 1.0.

final

skewX → double?

Horizontal shear, in radians.

final

skewY → double?

Vertical shear, in radians.

final

x → double?

Horizontal offset from the widget's natural position, in pixels.

final

y → double?

Vertical offset from the widget's natural position, in pixels.

final

Methods

copyWith({double? x, double? y, double? scale, double? scaleX, double? scaleY, double? rotate, double? skewX, double? skewY, double? opacity, Color? color, BorderRadius? borderRadius, List<BoxShadow>? boxShadow}) → NibAnim

Returns a copy of this animation with the given properties replaced.

lerp(NibAnim other, double t) → NibAnim

Interpolates between this animation and other at position t (0.0 = this, 1.0 = other).

merge(NibAnim other) → NibAnim

Returns a copy of this animation with every non-null property of other overriding the corresponding property of this animation.

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.

override

Constants

identity → const NibAnim

The identity animation: every transform/opacity property at the value that produces no visual change, with no color, border radius, or shadow.