morph Colors - Android Graphics

Android examples for Graphics:Color

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Description

morph Colors

Demo Code


//package com.java2s;

import android.graphics.Color;

import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.TransitionDrawable;

public class Main {
    public static TransitionDrawable morphColors(int fromColor, int toColor) {
        TransitionDrawable drawable = new TransitionDrawable(
                new ColorDrawable[] { new ColorDrawable(fromColor),
                        new ColorDrawable(toColor) });
        return drawable;
    }/*from  w w  w .  j  a v a2s. c o  m*/

    public static int morphColors(int fromColor, int toColor, float progress) {
        float[] fromHsv = new float[3];
        float[] toHsv = new float[3];

        Color.RGBToHSV(Color.red(fromColor), Color.green(fromColor),
                Color.blue(fromColor), fromHsv);
        Color.RGBToHSV(Color.red(toColor), Color.green(toColor),
                Color.blue(toColor), toHsv);

        float h = (toHsv[0] - fromHsv[0]) * progress;
        float s = (toHsv[1] - fromHsv[1]) * progress;
        float v = (toHsv[2] - fromHsv[2]) * progress;

        return Color.HSVToColor(new float[] { h, s, v });
    }
}

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