ElasticEase.java

package com.db.chart.view.animation.easing;

public class ElasticEase extends BaseEasingMethod {

    public ElasticEase() {
        super();
    }

    @Override
    protected float easeOut(float time) {

        if (time == 0) return 0;
        if (time == 1) return 1;
        float p = .3f;
        float a = 1;
        float s = p / 4;
        return (a * (float) Math.pow(2, -10 * time) * (float) Math.sin((time * 1 - s) * (2 * (float) Math.PI) / p) + 1);
    }

    @Override
    protected float easeIn(float time) {
        return easeOut(1.f - time);
    }

}