Return ARGB values in int array - Java 2D Graphics

Java examples for 2D Graphics:Color RGB

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Description

Return ARGB values in int array

Demo Code


//package com.java2s;

public class Main {
    public static void main(String[] argv) throws Exception {
        String argb = "java2s.com";
        System.out.println(java.util.Arrays
                .toString(getARGBComponents(argb)));
    }//from  w w  w.j  a v a 2  s  . c om

    /**
     * Return ARGB values in int array
     * @param argb Color in HEX format (either with or without alpha, e.g.
     *             #CCCCCC or #ffCCCCCC.
     * @return
     */
    private static int[] getARGBComponents(String argb) {

        if (argb.startsWith("#")) {
            argb = argb.replace("#", "");
        }

        int alpha = -1, red = -1, green = -1, blue = -1;

        if (argb.length() == 8) {
            alpha = Integer.parseInt(argb.substring(0, 2), 16);
            red = Integer.parseInt(argb.substring(2, 4), 16);
            green = Integer.parseInt(argb.substring(4, 6), 16);
            blue = Integer.parseInt(argb.substring(6, 8), 16);
        } else if (argb.length() == 6) {
            alpha = 255;
            red = Integer.parseInt(argb.substring(0, 2), 16);
            green = Integer.parseInt(argb.substring(2, 4), 16);
            blue = Integer.parseInt(argb.substring(4, 6), 16);
        }

        int[] components = { alpha, red, green, blue };

        return components;

    }
}

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