scrollview嵌套listview运行后最先显示出来的位置不在顶部而是中间问题

重写ScrollView的方法  @Override    protected int computeScrollDeltaToGetChildRectOnScreen(Rect rect) {        return 0;    }或者@Override    protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) {        return true;    }