Animate seekbar progress

Question

I have a screen with 4 seek bars ( As shown in the image below) . If the user moves B,C or D I calculate the average of the three and setProgress of A to the average. That was the easy part . What I would like to do is animate the progress bar A such that it does not jump in one shot (for eg from 25-75 ).

What are the recommended ways to animate A? I got a simple animation up but I am calling a TimerTask every 50ms to increment or decrement A by a unit value till I reach the required position. But its not very efficient.

Note: I have a custom Seekbar object using which I have created seekBar's A,B,C & D. Sorry I cant really share the code but will be happy to clarify anything.

Answer 1

I guess its too late. But I found a way to achieve this using ValueAnimator.

ValueAnimator anim = ValueAnimator.ofInt(0, seekBar.getMax());
anim.setDuration(1000);
anim.addUpdateListener(new AnimatorUpdateListener() {
    @Override
    public void onAnimationUpdate(ValueAnimator animation) {
    int animProgress = (Integer) animation.getAnimatedValue();
    seekBar.setProgress(animProgress);
    }
});
anim.start();