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. [...]
inherited-getter, read / write
beginArc MaterialPointArcTween
The path of the corresponding begin, end rectangle corners that lead the animation.
read-only
end Rect
The value this variable has at the end of the animation. [...]
inherited-getter, read / write
endArc MaterialPointArcTween
The path of the corresponding begin, end rectangle corners that trail the animation.
read-only
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

lerp(double t) Rect
Returns the value this variable has at the given animation clock value.
toString() → String
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
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
transform(double t) Rect
Returns the interpolated value for the current value of the given animation. [...]
inherited

Operators

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