android animation infinite loop

activity.java

final ImageView animationView = (ImageView) findViewById(R.id.animationView);
final AnimatedVectorDrawableCompat avd = (AnimatedVectorDrawableCompat) animationView.getDrawable();

avd.registerAnimationCallback(new Animatable2Compat.AnimationCallback() {
    @Override
    public void onAnimationEnd(Drawable drawable) {
        animationView.post(new Runnable() {
            @Override
            public void run() {
                avd.start();
            }
        });


    }
});

avd.start();

source : https://medium.com/google-developers/re-animation-7869722af206