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计算索引OutOfBoundException,同时在安内斯从清单中删除物品?
原标题:Encountered IndexOutOfBoundException while removing items from ListView in Android?

I have one simple_list_item_multiple_choice listview in my layout and i am trying to remove all the selected items from it. I know how to delete it but i am having two major problems while deleting the items :-

  1. 我的方案删除了2个以上的项目,如选定4个项目,则只删除2个,有时甚至删除错误的项目。

  2. 在我守则中发现Array IndexOutOfBoundException

我的法典是:

public void onClick(View view)
{
    SparseBooleanArray checkedPositions = new SparseBooleanArray();
    checkedPositions.clear();
    checkedPositions = lv.getCheckedItemPositions();
    int size = checkedPositions.size();
    if(size != 0)
    {
        try
        {
        for(int i = 0; i < size; i++)
        {
            if(checkedPositions.valueAt(i))
            {
                list.remove(checkedPositions.keyAt(i));
                notes.notifyDataSetChanged();
                lv.setItemChecked(i,false);
            }
        }}catch (IndexOutOfBoundsException ie)
        {}
    }
        else{}
}

我只是出于欺骗目的。 提前感谢,但希望得到帮助,因为自过去两天以来,我一直滞留在这一地区。

最佳回答
for(int i = size-1 ; i >= 0; i--) 
{
  if(checkedPositions.valueAt(i))
  {
    list.remove(checkedPositions.keyAt(i));
    //lv.setItemChecked(checkedPositions.keyAt(i),false);
  }
}
notes.notifyDataSetChanged();
问题回答

每当你从低纬度阵列中删除一个项目时,计算总数就会减少1个。 如果你有4个项目去除[0、1、2、3],并且你从项目0开始删除项目,那么,如果你试图删除指数2中不存在的项目,则你将删除项目1。 不要放弃

for(int i = size; i > 0; --i)
{
  if(checkedPositions.valueAt(i))
  {
    list.remove(checkedPositions.keyAt(i));
    notes.notifyDataSetChanged();
    lv.setItemChecked(i,false);
  }
}

从表面上看,你应该改变这种状况。

for(int i = 0; i <= size; i++)

to

for(int i = 0; i < size; i++)




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