listView.getSelectedItemPosition()返回index-1

Question

我有我的自定义列表视图,在每行的末尾我都有ImageView从列表中删除该行,但是当我点击这个图像时,我得到"Arryindesoutofboundexception:length = 681 indez = -1"

帮我

private OnClickListener imageviewClickListener = new OnClickListener() {
  @Override
  public void onClick(View v) 
  {
      int index;
        index=listView.getSelectedItemPosition();//itemsListView is the listview
        dataAdapter.remove(topicsList.get(index));
        topicsList.clear();
        dataAdapter.notifyDataSetChanged();


  }
};

Answer 1

您的项目未被选中,因为图像截取了触摸事件,因此所选位置为-1.为了完成这项工作,您需要告诉OnClickListener它属于哪个项目:

private static class MyClickListener implements OnClickListener {
    private final int mIndex;

    private MyClickListener (int index) {
        mIndex = index;
    }

    @Override
    public void onClick(View v) {
        dataAdapter.remove(topicsList.get(mIndex));
        topicsList.clear();
        dataAdapter.notifyDataSetChanged();
    }
}