StartAnimation.java

public void start() {
    ValueAnimator animator = ValueAnimator.ofInt(0, 1);
    animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
        @Override
        public void onAnimationUpdate(ValueAnimator animation) {
            frame = animation.getAnimatedFraction();
            postInvalidate();
        }
    });
    animator.setDuration(durationRotate);
    animator.setStartDelay(durationInterval);
    animator.setRepeatCount(ObjectAnimator.INFINITE);
    animator.start();
}