MotionTween<T> class

A motion that tweens a property between two values, optionally using an animation curve. This is one of the most common building blocks when creating motions. The tween class can be used to animate properties of the type Point, Size, Rect, double, or Color.



MotionTween(SetterCallback setter, T startVal, T endVal, double duration, [Curve curve])
Creates a new tween motion. The setter will be called to update the animated property from startVal to endVal over the duration time in seconds. Optionally an animation curve can be passed in for easing the animation. [...]


curve Curve
The animation curve used to ease the animation. [...]
read / write, inherited
duration double
The total time it will take to complete the motion, in seconds.
read-only, inherited
endVal → T
The end value of the animation.
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
setter SetterCallback
The setter method used to set the property being animated.
startVal → T
The start value of the animation.


noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
step(double dt) → void
Moves to the next time step in an motion, dt is the delta time since the last time step in seconds. Typically this method is called from the MotionController.
toString() String
Returns a string representation of this object.
update(double t) → void
Sets the motion to a specific point in time. The t value that is passed in is a normalized value 0.0 to 1.0 of the duration of the motion. Every motion will always recieve a callback with the end time point (1.0), unless it is cancelled.


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