ColorUtil工具类

public class ColorUtil {public static Object evaluateColor(float fraction, Object startValue,Object endValue) {int startInt = (Integer) startValue;int startA = (startInt >> 24) & 0xff;int startR = (startInt >> 16) & 0xff;int startG = (startInt >> 8) & 0xff;int startB = startInt & 0xff;int endInt = (Integer) endValue;int endA = (endInt >> 24) & 0xff;int endR = (endInt >> 16) & 0xff;int endG = (endInt >> 8) & 0xff;int endB = endInt & 0xff;return (int) ((startA + (int) (fraction * (endA - startA))) << 24)| (int) ((startR + (int) (fraction * (endR - startR))) << 16)| (int) ((startG + (int) (fraction * (endG - startG))) << 8)| (int) ((startB + (int) (fraction * (endB - startB))));}}