thrashedbrain

 ObjectAnimator animator = ObjectAnimator.ofPropertyValuesHolder(
                    container,
                    PropertyValuesHolder.ofFloat("scaleX", 0.5f),
                    PropertyValuesHolder.ofFloat("scaleY", 0.5f)
            );
            animator.setDuration(300);
            animator.setRepeatCount(ObjectAnimator.RESTART);
            animator.setRepeatMode(ObjectAnimator.REVERSE);
            animator.setInterpolator(new FastOutSlowInInterpolator());
            animator.start();