在gridview里设置长按键删除某个view的操作时，只有删除最后一个view界面和功能对应起来，而删除其他view时此view的图标消失但真正删除的是最后一个功能，请问这是怎么回事啊？代码如下：

private class ItemLongClickListener implements OnItemLongClickListener{

@Override
public boolean onItemLongClick(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
// TODO Auto-generated method stub

listImgTxtItem.remove(arg2);
if(GridMenuAdapter.count == 1||GridMenuAdapter.count == 2||GridMenuAdapter.count==3){
gridView.setNumColumns(1);
}else if(GridMenuAdapter.count == 4||GridMenuAdapter.count == 6||GridMenuAdapter.count==8){
gridView.setNumColumns(3);
}else if(GridMenuAdapter.count == 5||GridMenuAdapter.count == 7||GridMenuAdapter.count==9){
gridView.setNumColumns(2);
}
adapter.notifyDataSetChanged();
return true;
}

}