infinite fade animation - Android android.view.animation

Android examples for android.view.animation:Fade Animation

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  4. Fade Animation

Description

infinite fade animation

Demo Code

import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.view.View;

public class Main{

    /**//from   w  w  w.  j  a  v  a  2s  .co  m
     * infinite fade animation
     *
     * @param view
     * @param singleDuration duration of single alpha animation
     * @return AnimatorSet
     */
    public static AnimatorSet fadingInfinite(View view, long singleDuration) {
        ObjectAnimator firstFade = ObjectAnimator.ofFloat(view, "alpha",
                0.0f, 1.0f).setDuration(singleDuration);
        ObjectAnimator secondFade = ObjectAnimator.ofFloat(view, "alpha",
                1.0f, 0.0f).setDuration(singleDuration);

        final AnimatorSet animatorSet = new AnimatorSet();

        animatorSet.addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {
                animatorSet.start();
            }
        });

        animatorSet.play(firstFade).before(secondFade);
        animatorSet.start();

        return animatorSet;
    }

}

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