DetectType4CommandAdapter.java 文件源码

private ValueAnimator createBaseAfiAnimator(int current,
                                            int desired,
                                            float velocity,
                                            final View afiView) {
    int difference = Math.abs(desired - current);
    long duration = (long) (difference / velocity);
    final ValueAnimator valueAnimator = ValueAnimator.ofInt(current, desired);
    valueAnimator.setDuration(duration);
    valueAnimator.setInterpolator(new FastOutLinearInInterpolator());
    valueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {

        @Override
        public void onAnimationUpdate(ValueAnimator animation) {
            afiView.getLayoutParams().height = (int) animation.getAnimatedValue();
            afiView.requestLayout();
        }
    });
    return valueAnimator;
}