Create breath animation via ObjectAnimator - Android android.animation

Android examples for android.animation:ObjectAnimator

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Description

Create breath animation via ObjectAnimator

Demo Code

/*//from  w w  w  . j  av  a  2s .c  om
 * Copyright (C) 2016 venshine.cn@gmail.com
 *
 * 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.animation.ObjectAnimator;
import android.animation.ValueAnimator;
import android.view.View;
import android.view.animation.AccelerateDecelerateInterpolator;

public class Main {

    public static void breath(View v) {
        breath(v, 0.0f, 1.0f, 1000);
    }

    public static void breath(View v, float fromRange, float toRange,
            long duration) {
        ObjectAnimator animator = ObjectAnimator.ofFloat(v, View.ALPHA,
                fromRange, toRange);
        animator.setDuration(duration);
        animator.setRepeatMode(ValueAnimator.REVERSE);
        animator.setRepeatCount(ValueAnimator.INFINITE);
        animator.setInterpolator(new AccelerateDecelerateInterpolator());
        animator.start();
    }
}

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