Android 从回收器视图中删除项目会生成错误

我想从RecyclerView中删除某些项目。我可以一次删除一个项目，但无法一次删除多个项目。以下是删除项目的代码：

final  Online2_G_S online2_g_s = online2_g_sList.get(position);

if (online2_g_s.getpMrp()==0){
   removeItem(holder.getAdapterPosition());
}

private void removeItem(final int position) {
    new Handler().post(new Runnable() {
        @Override
        public void run() {

            try{
                Log.i("sand36", String.valueOf(position)+" "+online2_g_sList.get(position));
                online2_g_sList.remove(position);
                notifyItemRemoved(position);
                notifyItemRangeChanged(position, online2_g_sList.size());

            }catch (Exception e){
                Log.i("sand36", String.valueOf(e));
            }
        }
});

09-14 09:09:36.816 26394-26394/com.parse.AwaazDo I/sand36: java.lang.IndexOutOfBoundsException: Invalid index 4, size is 4   
09-14 09:09:36.817 26394-26394/com.parse.AwaazDo I/sand36: java.lang.IndexOutOfBoundsException: Invalid index 2, size is 2
09-14 09:09:36.870 26394-26394/com.parse.AwaazDo I/sand36: java.lang.IndexOutOfBoundsException: Invalid index 1, size is 1

以下是删除项目时出现的错误：

final  Online2_G_S online2_g_s = online2_g_sList.get(position);

if (online2_g_s.getpMrp()==0){
   removeItem(holder.getAdapterPosition());
}

private void removeItem(final int position) {
    new Handler().post(new Runnable() {
        @Override
        public void run() {

            try{
                Log.i("sand36", String.valueOf(position)+" "+online2_g_sList.get(position));
                online2_g_sList.remove(position);
                notifyItemRemoved(position);
                notifyItemRangeChanged(position, online2_g_sList.size());

            }catch (Exception e){
                Log.i("sand36", String.valueOf(e));
            }
        }
});

09-14 09:09:36.816 26394-26394/com.parse.AwaazDo I/sand36: java.lang.IndexOutOfBoundsException: Invalid index 4, size is 4   
09-14 09:09:36.817 26394-26394/com.parse.AwaazDo I/sand36: java.lang.IndexOutOfBoundsException: Invalid index 2, size is 2
09-14 09:09:36.870 26394-26394/com.parse.AwaazDo I/sand36: java.lang.IndexOutOfBoundsException: Invalid index 1, size is 1

---

如果您试图直接从适配器中删除该项，则可能会出现indexoutofbound异常

您需要做的是创建一个接口，该接口由recyclerview的父级实现，并在创建期间将其传递给recycler适配器，然后当您例如侦听recycler项中的remove按钮时，调用该项的interface方法，然后父级将删除该项并通知

public interface OnRecyclerItemInteraction{
  public void onItemRemoveClicked(Online2_G_S  item);
}

在父实现中：

@override
public void onItemRemoveClicked(Online2_G_S  item){
  int index = yourList.indexOf(item);
  yourList.remove(item);
  yourAdapter.notifyItemRemoved(index);
}

最后，在bindViewHolder中：

closeButton.setOnClickListener(new OnClickListener{
   @Override
            public void onClick(View view) {
                itemInteraction.onItemRemoveClicked(thisViewsItem)
            }
})

请在下面的示例中尝试此代码

notifyItemRangeChanged(position, online2_g_sList.size()); 

用上面这行

notifyItemRangeChanged(position, online2_g_sList.size());
online2_g_sList.remove(position);
notifyItemRemoved(position);`

---

您从哪里获得online2\u g\u列表中的位置。获取（位置）？从BindViewHolder（final OnlineAdapter.MyViewHolder holder，final int position）开始，当您尝试删除项目时，请详细说明差异。在删除项（notifyItemRangeChanged（position，online2_g_sList.size（））；）之前，此行更改列表大小的范围，以便只有可用的位置或数组列表大小在数组列表中。谢谢，我在将数据附加到适配器之前删除了数据，但这是解决我问题的方法。