交错网格布局管理器动态列数

我如何使动态列数RecyclerView using StaggeredGridLayoutManager。我已经有工作了RecyclerView。这是我需要做的屏幕：

如果最大列是两个，那就很简单了。对于占据整个宽度的视图，setFullSpan(true) 就像 Recyclerview Adapter 的 BindView 方法一样

//rlm is RecyclerView.LayoutManager passed in constructor or setter in adapter 
if (rlm instanceof StaggeredGridLayoutManager) {
   StaggeredGridLayoutManager.LayoutParams layoutParams = (StaggeredGridLayoutManager.LayoutParams) holder.itemView.getLayoutParams();
    /*
     * to make View to occupy full width of the parent
     */
     layoutParams.setFullSpan(true);
}