utils/helpers library

Extensions

DoubleSum on Iterable<T>

Functions

calculateEndRotate(RouletteGroup group, int targetIndex, bool clockwise, int minRotateCircles, {double offset = 0}) → double

Calculate the end rotate value by targetIndex. The returned value contains the circles to roll. Make sure when you run this method the group has at least one RouletteUnit.

makeAnimation(AnimationController controller, double targetValue, Curve? curve, {double initialValue = 0}) → Animation<double>

Make Animation from controller to begin rotate effect. Rotate final position is targetValue.

Typedefs

DoubleSelector<T> = double Function(T source)

IndexBuilder<T> = T Function(int index)