SizeTween class Null safety

An interpolation between two sizes.

This class specializes the interpolation of Tween<Size> to use Size.lerp.

The values can be null, representing Size.zero.

See Tween for a discussion on how to use interpolation objects.

Inheritance

Constructors

SizeTween({Size? begin, Size? end})
Creates a Size tween. [...]

Properties

begin Size?
The value this variable has at the beginning of the animation. [...]
read / write, inherited
end Size?
The value this variable has at the end of the animation. [...]
read / write, inherited
hashCode int
The hash code for this object. [...]
read-only, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

animate(Animation<double> parent) Animation<Size?>
Returns a new Animation that is driven by the given animation but that takes on values determined by this object. [...]
inherited
chain(Animatable<double> parent) Animatable<Size?>
Returns a new Animatable whose value is determined by first evaluating the given parent and then evaluating this object. [...]
inherited
evaluate(Animation<double> animation) Size?
The current value of this object for the given Animation. [...]
inherited
lerp(double t) Size?
Returns the value this variable has at the given animation clock value.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
toString() String
Returns a string representation of this object.
inherited
transform(double t) Size?
Returns the interpolated value for the current value of the given animation. [...]
inherited

Operators

operator ==(Object other) bool
The equality operator. [...]
inherited