Java tutorial
//package com.java2s; /* * Protocoder * A prototyping platform for Android devices * * Victor Diaz Barrales victormdb@gmail.com * * Copyright (C) 2014 Victor Diaz * Copyright (C) 2013 Motorola Mobility LLC * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the Software * is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * */ import android.graphics.Color; public class Main { public static String colorHexToHtmlRgba(String colorHex) { int c = Color.parseColor(colorHex); float alpha = (float) (Color.alpha(c) / 255.0); //html uses normalized values int r = Color.red(c); int g = Color.green(c); int b = Color.blue(c); String colorStr = "rgba(" + r + "," + g + "," + b + "," + alpha + ")"; return colorStr; } }