Google Maps Android API v2: Visualizing the search radius with the helping of ValueAnimator

Question

I want to add an animated circle to Google Maps view similar to the circle you see on this image.

Answer 1

Simply :)

    final Circle circle = MAP.addCircle(new CircleOptions().center(EGYPT)
            .strokeColor(Color.CYAN).radius(100));

    ValueAnimator vAnimator = new ValueAnimator();
    vAnimator.setRepeatCount(ValueAnimator.INFINITE);
    vAnimator.setRepeatMode(ValueAnimator.RESTART);  /* PULSE */
    vAnimator.setIntValues(0, 100);
    vAnimator.setDuration(1000);
    vAnimator.setEvaluator(new IntEvaluator());
    vAnimator.setInterpolator(new AccelerateDecelerateInterpolator());
    vAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
        @Override
        public void onAnimationUpdate(ValueAnimator valueAnimator) {
            float animatedFraction = valueAnimator.getAnimatedFraction();
            // Log.e("", "" + animatedFraction);
            circle.setRadius(animatedFraction * 100);
        }
    });
    vAnimator.start();