Blend color1 and color2 using the given ratio. - Android Graphics

Android examples for Graphics:Color Blend

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Description

Blend color1 and color2 using the given ratio.

Demo Code

/*/*from w w w .  j  av  a  2s . c o m*/
 * Copyright 2014 Chris Banes
 *
 * 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;

public class Main {
    /**
     * Blend {@code color1} and {@code color2} using the given ratio.
     *
     * @param ratio of which to blend. 1.0 will return {@code color1}, 0.5 will give an even blend,
     *              0.0 will return {@code color2}.
     */
    public static int blendColors(int color1, int color2, float ratio) {
        final float inverseRatio = 1f - ratio;
        float r = (Color.red(color1) * ratio)
                + (Color.red(color2) * inverseRatio);
        float g = (Color.green(color1) * ratio)
                + (Color.green(color2) * inverseRatio);
        float b = (Color.blue(color1) * ratio)
                + (Color.blue(color2) * inverseRatio);
        return Color.rgb((int) r, (int) g, (int) b);
    }
}

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