android - 如何从recyclerView中删除商品？

Question

如何从回收者 View 中删除项目？

我有以下代码

在

 class LibraryAdapter(val list: ArrayList<Book>): RecyclerView.Adapter<LibraryAdapter.ViewHolder>() {
 override fun onBindViewHolder(holder: ViewHolder, position: Int) {

  holder.removeBtn.setOnClickListener {
        this.removeItem(position)
        MUser.removeFromLibrary(list[position].id)
    }

然后我有功能

fun removeItem(position: Int) {
    list.removeAt(position)
    notifyItemRemoved(position)
}

Answer 1

也许试试这个:

fun removeItem(position: Int) {
    list.removeAt(position)
    notifyDataSetChanged()
}