bottomSheetDialog.getBehavior().addBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {
    @Override
    public void onStateChanged(@NonNull View bottomSheet, int newState) {
// lightweight
//        bottomSheet.setVisibility(View.GONE);
//        bottomSheet.setVisibility(View.VISIBLE);
//        or
//        slider.invalidate();
    }

    @Override
    public void onSlide(@NonNull View bottomSheet, float slideOffset) {
// smoother
        bottomSheet.setVisibility(View.GONE);
        bottomSheet.setVisibility(View.VISIBLE);
//        or
//        slider.invalidate();
    }
});