MaterialRectArcTween class

A Tween that interpolates a Rect by having its opposite corners follow circular arcs.

This class specializes the interpolation of Tween<Rect> so that instead of growing or shrinking linearly, opposite corners of the rectangle follow arcs in a manner consistent with Material Design principles.

Specifically, the rectangle corners whose diagonals are closest to the overall direction of the animation follow arcs defined with MaterialPointArcTween.

See also:

Inheritance

Constructors

MaterialRectArcTween({Rect? begin, Rect? end})
Creates a Tween for animating Rects along a circular arc.

Properties

begin Rect?
The value this variable has at the beginning of the animation.
getter/setter pairinherited-getteroverride-setter
beginArc MaterialPointArcTween?
The path of the corresponding begin, end rectangle corners that lead the animation.
no setter
end Rect?
The value this variable has at the end of the animation.
getter/setter pairinherited-getteroverride-setter
endArc MaterialPointArcTween?
The path of the corresponding begin, end rectangle corners that trail the animation.
no setter
hashCode int
The hash code for this object.
no setterinherited
runtimeType Type
A representation of the runtime type of the object.
no setterinherited

Methods

animate(Animation<double> parent) Animation<Rect?>
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<Rect?>
Returns a new Animatable whose value is determined by first evaluating the given parent and then evaluating this object.
inherited
evaluate(Animation<double> animation) Rect?
The current value of this object for the given Animation.
inherited
lerp(double t) Rect
Returns the value this variable has at the given animation clock value.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() String
A string representation of this object.
override
transform(double t) Rect?
Returns the interpolated value for the current value of the given animation.
inherited

Operators

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