get Tinted Background Color - Android Graphics

Android examples for Graphics:Color

  1. HOME
  2. Android
  3. Graphics
  4. Color

Description

get Tinted Background Color

Demo Code

/*//  ww w  .  j av  a 2s.co  m
 * Copyright (C) 2012 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
//package com.java2s;
import android.graphics.Color;
import java.util.Calendar;

public class Main {
    /**
     * Provides varying background colors based on the time of day.
     * These functions are taken from the DeskClock of the Android Open Source Project (Lollipop).
     * https://android.googlesource.com/platform/packages/apps/DeskClock/+/lollipop-release
     */

    private static final String[] BACKGROUND_SPECTRUM = { "#212121",
            "#27232e", "#2d253a", "#332847", "#382a53", "#3e2c5f",
            "#442e6c", "#393a7a", "#2e4687", "#235395", "#185fa2",
            "#0d6baf", "#0277bd", "#0d6cb1", "#1861a6", "#23569b",
            "#2d4a8f", "#383f84", "#433478", "#3d3169", "#382e5b",
            "#322b4d", "#2c273e", "#272430" };
    private static final float TINTED_LEVEL = 0.09f;

    public static int getTintedBackgroundColor() {
        final int c = getCurrentHourColor();
        final int red = Color.red(c)
                + (int) (TINTED_LEVEL * (255 - Color.red(c)));
        final int green = Color.green(c)
                + (int) (TINTED_LEVEL * (255 - Color.green(c)));
        final int blue = Color.blue(c)
                + (int) (TINTED_LEVEL * (255 - Color.blue(c)));
        return Color.rgb(red, green, blue);
    }

    public static int getCurrentHourColor() {
        final int hourOfDay = Calendar.getInstance().get(
                Calendar.HOUR_OF_DAY);
        return Color.parseColor(BACKGROUND_SPECTRUM[hourOfDay]);
    }
}

Related Tutorials