Main.java Source code

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Here is the source code for Main.java

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//package com.java2s;
/*
 * Copyright 2015 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.
 */

import android.graphics.Color;

public class Main {
    /**
     * Blend between two ARGB colors using the given ratio.
     *
     * <p>A blend ratio of 0.0 will result in {@code color1}, 0.5 will give an even blend,
     * 1.0 will result in {@code color2}.</p>
     *
     * @param color1 the first ARGB color
     * @param color2 the second ARGB color
     * @param ratio  the blend ratio of {@code color1} to {@code color2}
     */
    public static int blendARGB(int color1, int color2, float ratio) {
        final float inverseRatio = 1 - ratio;
        float a = Color.alpha(color1) * inverseRatio + Color.alpha(color2) * ratio;
        float r = Color.red(color1) * inverseRatio + Color.red(color2) * ratio;
        float g = Color.green(color1) * inverseRatio + Color.green(color2) * ratio;
        float b = Color.blue(color1) * inverseRatio + Color.blue(color2) * ratio;
        return Color.argb((int) a, (int) r, (int) g, (int) b);
    }
}