Custom Footer View?

Is there a way to add a custom footer view (such as a "load more" cell) to the end of the list in certain situations?

I need to add a full width cell (that doesn't scroll horizontally with the rest of the table) when more data needs to be loaded in and cant figure out how to add this in.

Any help would be appreciated.
Thanks

未指定文件、测试或入口点。首先定位该库的表格和单元格布局扩展点，然后确定如何让全宽 footer 或 load-more 单元格保持在水平滚动区域之外；当所请求的 footer 行为得到支持，或其限制已得到明确记录时，即视为完成。

由索引模型根据 Issue 内容生成。