android - RecyclerView删除数据项后执行下拉刷新报空指针

Question

在RecyclerView中删除一行后下拉刷新，会报空指针错误。
![图片描述][1]

Answer 1

If you only delete the option but do not remove the data in the list, an error will occur when loading again. There may be many situations, but the conditions you gave are too few

Answer 2

Check to see if after deleting a row, you did not destroy the total data of the data source or see if there is any problem with the function callnotifyDataSetChanged