RecyclerView smoothScroll定位在中心。安卓

public void smoothScrollToCenter(RecyclerView recyclerView, int position) {
    RecyclerView.LayoutManager layoutManager = recyclerView.getLayoutManager();
    if (layoutManager == null) {
        return;
    }

    View view = layoutManager.findViewByPosition(position);
    if (view == null) {
        return;
    }

    int viewWidth = view.getWidth();
    int viewHeight = view.getHeight();
    int recyclerViewWidth = recyclerView.getWidth();
    int recyclerViewHeight = recyclerView.getHeight();

    int offset = (recyclerViewWidth - viewWidth) / 2;
    int targetPos = layoutManager.getPosition(view);

    recyclerView.smoothScrollToPosition(targetPos);
    recyclerView.post(() -> {
        layoutManager.scrollToPositionWithOffset(targetPos, offset);
    });
}